Installation Instructions -...

580JSINGLE PACKAGE ROOFTOPGAS HEATING/ELECTRIC COOLING UNITSIZES 04 -- 07 with PURONR (R--410A) REFRIGERANT

Installation Instructions

NOTE: Read the entire instruction manual before startingthe installation

TABLE OF CONTENTS

SAFETY CONSIDERATIONS 2. . . . . . . . . . . . . . . . . . . .

Rated Indoor Airflow (cfm) 3. . . . . . . . . . . . . . . . . . . . .

INSTALLATION 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Jobsite Survey 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Step 1 -- Plan for Unit Location 6. . . . . . . . . . . . . . . . . .

Roof Mount 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Step 2 -- Plan for Sequence of Unit Installation 7. . . . . .

Curb--Mount Installation 7. . . . . . . . . . . . . . . . . . . . .

Pad--Mount Installation 7. . . . . . . . . . . . . . . . . . . . . .

Frame--Mount Installation 7. . . . . . . . . . . . . . . . . . . .

Step 3 -- Inspect Unit 7. . . . . . . . . . . . . . . . . . . . . . . . . . .

Step 4 -- Provide Unit Support 8. . . . . . . . . . . . . . . . . . .

Roof Curb Mount 8. . . . . . . . . . . . . . . . . . . . . . . . . .

Slab Mount (Horizontal Units Only) 8. . . . . . . . . . .

Alternate Unit Support(In Lieu of Curb or Slab Mount) 8. . . . . . . . . . . . . .

Step 5 -- Field Fabricate Ductwork 10. . . . . . . . . . . . . . .

Step 6 -- Rig and Place Unit 10. . . . . . . . . . . . . . . . . . . .

Positioning on Curb 11. . . . . . . . . . . . . . . . . . . . . . .

Step 7 -- Convert to Horizontal & Connect Ductwork 11.

Step 8 -- Install Outside Air Hood 11. . . . . . . . . . . . . . .

Economizer and Two Position Damper HoodPackage Removal and Setup — Factory Option 11.

Economizer Hood and Two--Position Hood 12. . . . .

Step 9 -- Install Flue Hood 12. . . . . . . . . . . . . . . . . . . . .

Step 10 -- Install Gas Piping 12. . . . . . . . . . . . . . . . . . . .

Factory--Option Thru--Base Connections(Gas Connections) 13. . . . . . . . . . . . . . . . . . . . . . . . .

Step 11 -- Install External Condensate Trap and Line 15. .

Step 12 -- Make Electrical Connections 16. . . . . . . . . . .

Field Power Supply 16. . . . . . . . . . . . . . . . . . . . . . . .

Units with Factory--InstalledNon--Fused Disconnect 17. . . . . . . . . . . . . . . . . . . . .

Units without Factory--InstalledNon--Fused Disconnect 17. . . . . . . . . . . . . . . . . . . . .

All Units 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Convenience Outlets 18. . . . . . . . . . . . . . . . . . . . . . .

Factory--Option Thru--Base Connections(Electrical Connections) 19. . . . . . . . . . . . . . . . . . . .

Units without Thru--Base Connections 19. . . . . . . . .

Field Control Wiring 19. . . . . . . . . . . . . . . . . . . . . . .

Thermostat 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unit without Thru--Base Connection Kit 20. . . . . . .

Heat Anticipator Settings 20. . . . . . . . . . . . . . . . . . .

EconoMi$er X (Factory--Installed Option) 20. . . . . . .

Perfect Humidityt Control Connections 21. . . . . . . .

Perfect Humidity -- Space RH Controller 21. . . . . . .

RTU Open Control System 23. . . . . . . . . . . . . . . . . . .

Supply Air Temperature (SAT) Sensor 26. . . . . . . . .

Outdoor Air Temperature (OAT) Sensor 26. . . . . . .

EconoMi$er2 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Field Connections 27. . . . . . . . . . . . . . . . . . . . . . . . . .

Space Temperature (SPT) Sensors 27. . . . . . . . . . . .

Indoor Air Quality (CO2) Sensor 28. . . . . . . . . . . . .

Outdoor Air Quality Sensor 28. . . . . . . . . . . . . . . . .

Smoke Detector/Fire Shutdown (FSD) 29. . . . . . . . .

Space Humidity Sensor or Humidistat 29. . . . . . . . .

Connecting Discrete Inputs 30. . . . . . . . . . . . . . . . . .

Communication Wiring -- Protocols 31. . . . . . . . . . . .

General 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Local Access 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RTU Open Troubleshooting 32. . . . . . . . . . . . . . . . .

Outdoor Air Enthalpy Control 33. . . . . . . . . . . . . . . . .

Differential Enthalpy Control 33. . . . . . . . . . . . . . . .

Return Air Enthalpy Sensor 33. . . . . . . . . . . . . . . . .

Smoke Detectors 34. . . . . . . . . . . . . . . . . . . . . . . . . . .

Step 13 -- Adjust Factory--Installed Options 38. . . . . . . .

Step 14 -- Install Accessories 38. . . . . . . . . . . . . . . . . . .

START--UP CHECKLIST 39. . . . . . . . . . . . . . . . . . . . . . .

2

SAFETY CONSIDERATIONSImproper installation, adjustment, alteration, service,maintenance, or use can cause explosion, fire, electricalshock or other conditions which may cause personalinjury or property damage. Consult a qualified installer,service agency, or your distributor or branch forinformation or assistance. The qualified installer oragency must use factory--authorized kits or accessorieswhen modifying this product. Refer to the individualinstructions packaged with the kits or accessories wheninstalling.Follow all safety codes. Wear safety glasses and workgloves. Use quenching cloths for brazing operations andhave a fire extinguisher available. Read these instructionsthoroughly and follow all warnings or cautions attached tothe unit. Consult local building codes and appropriatenational electrical codes (in USA, ANSI/NFPA70,National Electrical Code (NEC); in Canada, CSA C22.1)for special requirements.It is important to recognize safety information. This is thesafety--alert symbol . When you see this symbol on theunit and in instructions or manuals, be alert to thepotential for personal injury.Understand the signal words DANGER, WARNING,CAUTION, and NOTE. These words are used with thesafety--alert symbol. DANGER identifies the most serioushazards which will result in severe personal injury ordeath. WARNING signifies hazards which could result inpersonal injury or death. CAUTION is used to identifyunsafe practices, which may result in minor personalinjury or product and property damage. NOTE is used tohighlight suggestions which will result in enhancedinstallation, reliability, or operation.

FIRE, EXPLOSION HAZARD

Failure to follow this warning could result in personalinjury or death.

Disconnect gas piping from unit when leak testing atpressure greater than 0.5 psig (3450 Pa). Pressuresgreater than 0.5 psig (3450 Pa) will cause gas valvedamage resulting in hazardous condition. If gas valveis subjected to pressure greater than 0.5 psig (3450Pa), it must be replaced before use. When pressuretesting field--supplied gas piping at pressures of 0.5psig (3450 Pa) or less, a unit connected to such pipingmust be isolated by closing the manual gas valve.

! WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could cause personalinjury or death.

Before performing service or maintenance operationson unit, always turn off main power switch to unit andinstall lock(s) and lockout tag(s). Unit may have morethan one power switch.

! WARNING

UNIT OPERATION AND SAFETY HAZARD

Failure to follow this warning could cause personalinjury, death and/or equipment damage.

Puronr (R--410A) refrigerant systems operate athigher pressures than standard R--22 systems. Do notuse R--22 service equipment or components on Puronrefrigerant equipment.

! WARNING

PERSONAL INJURY AND ENVIRONMENTALHAZARD

Failure to follow this warning could cause personalinjury or death.

Relieve pressure and recover all refrigerant beforesystem repair or final unit disposal.

Ware safety glasses and gloves when handlingrefrigerants. Keep torches and other ignition sourcesaway from refrigerants and oils.

! WARNING

CUT HAZARD

Failure to follow this caution may result in personalinjury.

Sheet metal parts may have sharp edges or burrs. Usecare and wear appropriate protective clothing, safetyglasses and gloves when handling parts and servicingair conditioning equipment.

CAUTION!

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3

Rated Indoor Airflow (cfm)

The table to the right lists the rated indoor airflow usedfor the AHRI efficiency rating for the units covered in thisdocument.

Model Number Full Load Airflow (cfm)

580J*04A/B/C 1275

580J*05A/B/C 1400

580J*06A/B/C 1800

580J*07A/C/G/J 2200

Note: On single phase (-J voltage code) models, thefollowing are not available as a factory installed option:- Coated Coils or Cu Fin Coils- Louvered Hail Guards- Economizer or 2 Position Damper- Powered 115 Volt Convenience Outlet

ModelJ - Puron® (R-410A) Refrigerant

Unit Type580 - Gas Heat RTU Legacy Series

Packaging & 2-Speed Indoor Fan MotorA = Standard Packaging, electro mech. controls that require W7212 EconoMi$er IVB = LTL Packaging, electro mech. controls that require W7212 EconoMi$er IVC = Standard Packaging, electro mech. controls that require W7220 EconoMi$er XF = LTL Packaging, electro mech. controls that require W7220 EconoMi$er X

Cooling Tons04 - 3 tons05 - 4 tons06 - 5 tons07 - 6 tons

Heat LevelStandard/Stainless Steel072 = 72,000115 = 115,000125 = 125,000150 = 150,000

Low NOx060 = 60,000090 = 90,000120 = 120,000

Indoor Fan Options0 = Direct Drive, Standard Staitc Option (04/05/06 models only)1 = Belt Drive, Standard Static Option2 = Belt Drive, Medium Static Option3 = Belt Drive, High Static/ Option

Refrig. System/Gas Heat OptionsA = Standard One Stage cooling models/Natural Gas HeatB = Standard One Stage cooling models/Low NOx HeatC = Standard One Stage cooling models/Stainless Steel HX HeatG = One Stage cooling models/Alum Heat Exchanger with Perfect Humidity™ (07 models only)J = One Stage cooling models/Stainless Steel Exchanger with Perfect Humidity™ (07 models only)

Coil Options For Round Tube/Plate Fin Condenser Coil Models Only (Outdoor - Indoor - Hail Guard)A = Al/Cu - Al/CuB = Precoat Al/Cu - Al/CuC = E-coat Al/Cu - Al/CuD = E-coat Al/Cu - E-coat Al/CuE = Cu/Cu - Al/CuF = Cu/Cu - Cu/CuM = Al/Cu -Al/Cu — Louvered Hail GuardN = Precoat Al/Cu - Al/Cu — Louvered Hail GuardP = E-coat Al/Cu - Al/Cu — Louvered Hail GuardQ = E-coat Al/Cu - E-coat Al/Cu — Louvered Hail GuardR = Cu/Cu - Al/Cu — Louvered Hail GuardS = Cu/Cu - Cu/Cu — Louvered Hail Guard

Coil Options For All Aluminum - Novation Condenser Coil Models Only (Outdoor - Indoor - Hail Guard)G = Al/Al - Al/CuH = Al/Al - Cu/CuJ = Al/Al - E-coat Al/CuK = E-coat Al/Al - Al/CuL = E-coat Al/Al - E-coat Al/CuT = Al/Al - Al/Cu — Louvered Hail GuardU = Al/Al - Cu/Cu — Louvered Hail GuardV = Al/Al - E-coat Al/Cu — Louvered Hail GuardW = E-coat Al/Al - Al/Cu — Louvered Hail GuardX = E-coat Al/Al - E-coat Al/Cu — Louvered Hail Guard

VoltageE = 460-3-60J = 208/230-1-60P = 208/230-3-60T = 575-3-60

Example:

Position:

5 8 0 J E 0 6 A 0 7 2 A 1 B 0 A A

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Factory Installed Options0A = None NOTE: See the 580J 3 to 15 ton Price Pages for a complete list of factory installed options.

Outdoor Air OptionsA = NoneB = Temperature Economizer, Barometric Relief, Standard Leak (W7212 or W7220)E = Temperature Economizer, Barometric Relief, Standard Leak w/CO2, (W7212 or W7220)H = Enthalpy Economizer, Barometric Relief, Standard Leak, (W7212 or W7220)L = Enthalpy Economizer,Barometric Relief, Standard Leak w/CO2, (W7212 or W7220)Q = Motorized 2 Position DamperU = Temperature Economizer, Barometric Relief, Ultra Low Leak, (W7220)W = Enthalpy Economizer, Barometric Relief, Ultra Low Leak, (W7220)

C150143

Fig. 1 -- 580J 04--07 Model Number Nomenclature (Example)

580J

4

C150144Fig. 2 -- Unit Dimensional Drawing

580J

5

C150145

Fig. 2 -- Unit Dimensional Drawing (cont.)

580J

6

C

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C08337

LOCATION DIMENSION CONDITION

A

48--- in (1219 mm)18--- in (457 mm)18--- in (457) mm12--- in (305 mm)

Unit disconnect is mounted on panelNo disconnect, convenience outlet optionRecommended service clearanceMinimum clearance

B42--- in (1067 mm)36--- in (914 mm)Special

Surface behind servicer is grounded (e.g., metal, masonry wall)Surface behind servicer is electrically non---conductive (e.g., wood, fiberglass)Check sources of flue products within 10--- ft of unit fresh air intake hood

C36--- in (914 mm)18--- in (457 mm)

Side condensate drain is usedMinimum clearance

D

48--- in (1219 mm)42--- in (1067 mm)36--- in (914 mmSpecial

No flue discharge accessory installed, surface is combustible materialSurface behind servicer is grounded (e.g., metal, masonry wall, another unit)Surface behind servicer is electrically non---conductive (e.g., wood, fiberglass)Check for adjacent units or building fresh air intakes within 10--- ft of this unit’s flue outlet

NOTE: Unit not designed to have overhead obstruction. Contact Application Engineering for guidance on any applicationplanning overhead obstruction or for vertical clearances.

Fig. 3 -- Service Clearance Dimensional Drawing

INSTALLATIONJobsite SurveyComplete the following checks before installation.

1. Consult local building codes and the NEC (NationalElectrical Code) ANSI/NFPA 70 for special installa-tion requirements.

2. Determine unit location (from project plans) or selectunit location.

3. Check for possible overhead obstructions which mayinterfere with unit lifting or rigging.

Step 1 — Plan for Unit LocationSelect a location for the unit and its support system (curbor other) that provides for the minimum clearancesrequired for safety. This includes the clearance tocombustible surfaces, unit performance and service accessbelow, around and above unit as specified in unitdrawings. See Fig. 3.NOTE: Consider also the effect of adjacent units.

Be sure that unit is installed such that snow will not blockthe combustion intake or flue outlet.Unit may be installed directly on wood flooring or onClass A, B, or C roof--covering material when roof curb isused.Do not install unit in an indoor location. Do not locate airinlets near exhaust vents or other sources of contaminatedair. For proper unit operation, adequate combustion andventilation air must be provided in accordance withSection 5.3 (Air for Combustion and Ventilation) of theNational Fuel Gas Code, ANSI Z223.1 (AmericanNational Standards Institute) and NFPA (National FireProtection Association) 54 TIA----54----84----1. In Canada,installation must be in accordance with the CAN1----B149installation codes for gas burning appliances.Although unit is weatherproof, avoid locations that permitwater from higher level runoff and overhangs to fall ontothe unit.

580J

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Locate mechanical draft system flue assembly at least 4 ft(1.2 m) from any opening through which combustionproducts could enter the building, and at least 4 ft (1.2 m)from any adjacent building (or per local code). Locate theflue assembly at least 10 ft (3.05 m) from an adjacentunit’s fresh air intake hood if within 3 ft (0.91 m) of sameelevation (or per local code). When unit is locatedadjacent to public walkways, flue assembly must be atleast 7 ft (2.1 m) above grade.Select a unit mounting system that provides adequateheight to allow installation of condensate trap perrequirements. Refer to Step 11 — Install ExternalCondensate Trap and Line – for required trap dimensions.

Roof Mount —

Check building codes for weight distributionrequirements. Unit operating weight is shown in Table 1.

Step 2 — Plan for Sequence of Unit InstallationThe support method used for this unit will dictate differentsequences for the steps of unit installation. For example,on curb--mounted units, some accessories must beinstalled on the unit before the unit is placed on the curb.Review the following for recommended sequences forinstallation steps.

Curb--mounted Installation —

Install curbInstall field--fabricated ductwork inside curbInstall accessory thru--base service connection package(affects curb and unit) (refer to accessory installationinstructions for details)Prepare bottom condensate drain connection to suitplanned condensate line routing (refer to Step 11 fordetails)Rig and place unit

Install outdoor air hoodInstall flue hoodInstall gas pipingInstall condensate line trap and pipingMake electrical connectionsInstall other accessories

Pad--mounted Installation —

Prepare pad and unit supportsCheck and tighten the bottom condensate drainconnection plugRig and place unitConvert unit to side duct connection arrangementInstall field--fabricated ductwork at unit duct openingsInstall outdoor air hoodInstall flue hoodInstall gas pipingInstall condensate line trap and pipingMake electrical connectionsInstall other accessories

Frame--mounted Installation —

Frame--mounted applications generally follow thesequence for a curb installation. Adapt as required tosuit specific installation plan.

Step 3 — Inspect UnitInspect unit for transportation damage. File any claimwith transportation agency.Confirm before installation of unit that voltage, amperageand circuit protection requirements listed on unit dataplate agree with power supply provided.

Table 1 – Operating Weights

580J*UNITS LB (KG)

04 05 06 07

Base Unit 483 (219) 537 (244) 569 (258) 652 (296)

Economizer

Vertical 50 (23) 50 (23) 50 (23) 50 (23)

Horizontal 80 (36) 80 (36) 80 (36) 80 (36)

Perfect Humidity™ System N/A N/A N/A 41 (15)

Cu Fins 25 (11) 43 (20) 56 (25) 73 (33)

Powered Outlet 32 (15) 32 (15) 32 (15) 32 (15)

Curb

14--- in/356 mm 110 (50) 110 (50) 110 (50) 110 (50)

24--- in/610 mm 145 (66) 145 (66) 145 (66) 145 (66)

580J

8

Step 4 — Provide Unit Support

Roof Curb Mount —

Accessory roof curb details and dimensions are shown inFig. 5. Assemble and install accessory roof curb inaccordance with instructions shipped with the curb.NOTE: The gasketing of the unit to the roof curb iscritical for a watertight seal. Install gasket supplied withthe roof curb as shown in Fig. 5. Improperly appliedgasket can also result in air leaks and poor unitperformance.

Curb should be level. This is necessary for unit drain tofunction properly. Unit leveling tolerances are show inFig. 4. Refer to Accessory Roof Curb InstallationInstructions for additional information as required.

A-B0.5” (13)

B-C1.0” (25)

A-C1.0” (25)

MAXIMUM ALLOWABLEDIFFERENCE IN. (MM)

C06110Fig. 4 -- Unit Leveling Tolerances

Install insulation, cant strips, roofing felt, and counterflashing as shown. Ductwork must be attached to curb andnot to the unit. The accessory thru--the--base power andgas connection package must be installed before the unitis set on the roof curb. If field--installed thru--the--roofcurb gas connections are desired, use factory--supplied1/2--in. pipe coupling and gas plate assembly to mount thethru--the--roof curb connection to the roof curb. Gasconnections and power connections to the unit must befield installed after the unit is installed on the roof curb.If electric and control wiring is to be routed through thebasepan, attach the accessory thru--the--base serviceconnections to the basepan in accordance with theaccessory installation instructions.

Slab Mount (Horizontal Units Only) —

Provide a level concrete slab that extends a minimum of6 in. (150 mm) beyond unit cabinet. Install a gravel apronin front of condenser coil air inlet to prevent grass andfoliage from obstructing airflow.NOTE: Horizontal units may be installed on a roof curbif required.

Alternate Unit Support(In Lieu of Curb or Slab Mount) —

A non--combustible sleeper rail can be used in the unitcurb support area. If sleeper rails cannot be used, supportthe long sides of the unit with a minimum of 3 equallyspaced 4--in. x 4--in. (102 mm x 102 mm) pads on eachside.

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C13310Fig. 5 -- Roof Curb Details

580J

10

Step 5 — Field Fabricate DuctworkCabinet return-air static pressure (a negative condition)shall not exceed 0.35 in. wg (87 Pa) with economizer or0.45 in. wg (112 Pa) without economizer.For vertical ducted applications, secure all ducts to roof curband building structure. Do not connect ductwork to unit.

Fabricate supply ductwork so that the cross sectionaldimensions are equal to or greater than the unit supplyduct opening dimensions for the first 18 in. (458 mm) ofduct length from the unit basepan.

Insulate and weatherproof all external ductwork, joints,and roof openings with counter flashing and mastic inaccordance with applicable codes.Ducts passing through unconditioned spaces must beinsulated and covered with a vapor barrier.If a plenum return is used on a vertical unit, the returnshould be ducted through the roof deck to comply withapplicable fire codes.A minimum clearance is not required around ductwork.

PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in damageto roofing materials.

Membrane roofs can be cut by sharp sheet metaledges. Be careful when placing any sheet metal partson such roof.

CAUTION!

Step 6 — Rig and Place UnitKeep unit upright and do not drop. Spreader bars arerequired. Rollers may be used to move unit across a roof.Level by using unit frame as a reference. See Table 1 andFig. 6 for additional information.Lifting holes are provided in base rails as shown in Fig. 6.Refer to rigging instructions on unit.

Rigging materials under unit (cardboard or wood to prevent base pan damage) must be removed PRIOR to placing the unit on the roof curb.

When using the standard side drain connection, ensure thered plug in the alternate bottom connection is tight. Dothis before setting the unit in place. The red drain pan canbe tightened with a 1/2--in. square socket drive extension.For further details see “Step 11 -- Install ExternalCondensate Trap and Line on page 15.Before setting the unit onto the curb, recheck gasketing oncurb.

UNIT DAMAGE HAZARD

Failure to follow this caution may result inequipment damage.

All panels must be in place when rigging. Unit is notdesigned for handling by fork truck.

CAUTION!

DETAIL "A"PLACE ALL SEAL STRIP IN PLACEBEFORE PLACING UNIT ON ROOF CURB.

DUCT END

SEE DETAIL "A""A"

(914-1371)36"- 54"

"C"

"B"

SPREADERBARS

REQUIRED

C11292

UNITMAX WEIGHT

DIMENSIONSA B C

LB KG IN MM IN MM IN MM580J*04A 520 236 74.5 1890 38.0 965 33.5 850

580J*05A 575 261 74.5 1890 38.0 965 41.5 1055

580J*06A 605 274 74.5 1890 37.5 955 41.5 1055

580J*07A 690 313 74.5 1890 37.5 955 41.5 1055

NOTES:1. SPREADER BARS REQUIRED — Top damage will occur if spreader bars are not used.2. Dimensions in ( ) are in millimeters.3. Hook rigging shackles through holes in base rail, as shown in detail “A.” Holes in base rails are centered around the unit center ofgravity. Use wooden top to prevent rigging straps from damaging unit.

Fig. 6 -- Rigging Details

580J

→

517

11

Positioning on Curb —

Position unit on roof curb so that the following clearancesare maintained: 1/4 in. (6.4 mm) clearance between theroof curb and the base rail inside the front and rear, 0.0 in.clearance between the roof curb and the base rail inside onthe duct end of the unit. This will result in the distancebetween the roof curb and the base rail inside on thecondenser end of the unit being approximately 1/4 in.(6.4 mm).Although unit is weatherproof, guard against water fromhigher level runoff and overhangs.Flue vent discharge must have a minimum horizontalclearance of 4 ft (1220 mm) from electric and gas meters,gas regulators, and gas relief equipment. Minimumdistance between unit and other electrically live parts is48 inches (1220 mm).Flue gas can deteriorate building materials. Orient unit suchthat flue gas will not affect building materials. Locatemechanical draft system flue assembly at least 48 in. (1220mm) from an adjacent building or combustible material.NOTE: Installation of accessory flue discharge deflectorkit will reduce the minimum clearance to combustiblematerial to 18 in. (460 mm).

After unit is in position, remove rigging skids andshipping materials.

Step 7 — Convert to Horizontal and ConnectDuctwork (when required)Unit is shipped in the vertical duct configuration. Unitwithout factory--installed economizer or return air smokedetector option may be field--converted to horizontal ductedconfiguration. To convert to horizontal configuration,remove screws from side duct opening covers and removecovers. Using the same screws, install covers on verticalduct openings with the insulation--side down. Seals aroundduct openings must be tight. See Fig. 7

C06108

Fig. 7 -- Horizontal Conversion Panels

Field--supplied flanges should be attached to horizontalduct openings and all ductwork should be secured to theflanges. Insulate and weatherproof all external ductwork,joints, and roof or building openings with counter flashingand mastic in accordance with applicable codes.

Do not cover or obscure visibility to the unit’s informativedata plate when insulating horizontal ductwork.

Step 8 — Install Outside Air Hood

Economizer and Two Position Damper HoodPackage Removal and Setup -- Factory Option

NOTE: Economizer and two position damper are notavailable as factory installed options for single phase (--Jvoltage code) models.

1. The hood is shipped in knock--down form and must befield assembled. The indoor coil access panel is used asthe hood top while the hood sides, divider and filter arepackaged together, attached to a metal support tray us-ing plastic stretch wrap, and shipped in the return aircompartment behind the indoor coil access panel. Thehood assembly’s metal tray is attached to the basepanand also attached to the damper using two plastic tie--wraps.

2. To gain access to the hood, remove the filter accesspanel. (See Fig. 8.)

FILTER ACCESS PANEL

OUTDOOR-AIR OPENING ANDINDOOR COIL ACCESS PANEL

COMPRESSORACCESS PANEL

C06023Fig. 8 -- Typical Access Panel Locations

3. Locate the (2) screws holding the metal tray to thebasepan and remove. Locate and cut the (2) plastictie--wraps securing the assembly to the damper. (SeeFig. 9) Be careful to not damage any wiring or cuttie--wraps securing any wiring.

Hood Parts

Plastic Tie WrapQty (2)

Screws for Metal TrayQty (2)

C08639

Fig. 9 -- Economizer and Two--Position DamperHood Parts Location

580J

12

4. Carefully lift the hood assembly (with metal tray)through the filter access opening and assemble per thesteps outlined in Economizer Hood and Two–PositionHood, below.

Economizer Hood and Two--Position Hood —

NOTE: If the power exhaust accessory is to be installedon the unit, the hood shipped with the unit will not beused and must be discarded. Save the aluminum filter foruse in the power exhaust hood assembly.

1. The indoor coil access panel will be used as the top ofthe hood. Remove the screws along the sides and bot-tom of the indoor coil access panel. See Fig. 10.

TOPPANEL

INDOORCOILACCESSPANEL

INDOORCOILACCESSPANEL

CAULKHERE

TOPPANEL

C06025Fig. 10 -- Indoor Coil Access Panel Relocation

2. Swing out indoor coil access panel and insert thehood sides under the panel (hood top). Use the screwsprovided to attach the hood sides to the hood top. Usescrews provided to attach the hood sides to the unit.See Fig. 11.

B

TOPPANEL

INDOOR COILACCESS PANEL

19 1/16”SCREW

HOOD DIVIDER

LEFTHOODSIDE

33 3/8”(848mm)

(483mm)

C06026Fig. 11 -- Economizer Hood Construction

3. Remove the shipping tape holding the economizerbarometric relief damper in place (economizer only).

4. Insert the hood divider between the hood sides. SeeFig. 11 and 12. Secure hood divider with 2 screws on

each hood side. The hood divider is also used as thebottom filter rack for the aluminum filter.

5. Open the filter clips which are located underneath thehood top. Insert the aluminum filter into the bottomfilter rack (hood divider). Push the filter into positionpast the open filter clips. Close the filter clips to lockthe filter into place. See Fig. 12.

6. Caulk the ends of the joint between the unit top paneland the hood top.

7. Replace the filter access panel.

DIVIDER

BAROMETRICRELIEF

CLEANABLEALUMINUMFILTER

FILTER

HOOD

FILTERCLIP

OUTSIDEAIR

C08634Fig. 12 -- Economizer Filter Installation

Step 9 — Install Flue HoodFlue hood is shipped screwed to the basepan beside theburner compartment access panel. Remove from shippinglocation and using screws provided, install flue hood andscreen in location shown in Fig. 13.

BLOWERACCESSPANEL

C07081

Fig. 13 -- Flue Hood Details

Step 10 — Install Gas PipingInstallation of the gas piping must be accordance withlocal building codes and with applicable national codes.In U.S.A., refer to NFPA 54/ANSI Z223.1 National FuelGas Code (NFGC). In Canada, installation must beaccordance with the CAN/CSA B149.1 and CAN/CSAB149.2 installation codes for gas burning appliances.This unit is factory equipped for use with Natural Gas fuelat elevations up to 2000 ft (610 m) above sea level. Unit

580J

13

may be field converted for operation at elevations above2000 ft (610 m) and/or for use with liquefied petroleumfuel. See accessory kit installation instructions regardingthese accessories.NOTE: Furnace gas input rate on rating plate is forinstallation up to 2000 ft (610 m) above sea level. In U.S.A.the input rating for altitudes above 2000 ft (610 m) must bederated by 4% for each 1000 ft (305 m) above sea level. InCanada the input rating must be derated by 10% for altitudesof 2000 ft (610 m) to 4500 ft (1372 m) above sea level.For natural gas applications, gas pressure at unit gasconnection must not be less than 4 in. wg (996 Pa) or greaterthan 13 in. wg (3240 Pa) while the unit is operating. Forliquified petroleum applications, the gas pressure must notbe less than 11 in. wg (2740 Pa) or greater than 13.0 in. wg(3240 Pa) at the unit connection.

Table 2 – Natural Gas Supply Line Pressure Ranges

UNIT MODEL UNIT SIZE MIN MAX

580J* 04, 05, 06, 07 4.0 in. wg(996 Pa)

13.0 in. wg(3240 Pa)

Table 3 – Liquid Propane Supply Line Pressure Ranges

UNIT MODEL UNIT SIZE MIN MAX

580J* 04, 05, 06, 07 11.0 in. wg(2740 Pa)

13.0 in. wg(3240 Pa)

The gas supply pipe enters the unit at the burner accesspanel on the front side of the unit, through the long slot atthe bottom of the access panel. The gas connection to theunit is made to the 1/2--in. FPT gas inlet port on the unitgas valveManifold pressure is factory--adjusted for NG fuel use.Adjust as required to obtain best flame characteristics.

Table 4 – Natural Gas Manifold Pressure Ranges

UNIT MODEL UNIT SIZE HIGH FIRE LOW FIRE

580J* 04, 05, 06, 07 3.5 in. wg(872 Pa)

1.7 in. wg(423 Pa)

Manifold pressure for LP fuel use must be adjusted tospecified range. Follow instructions in the accessory kit tomake initial readjustment.

Table 5 – Liquid Propane Manifold Pressure Ranges

UNIT MODEL UNIT SIZE HIGH FIRE LOW FIRE

580J* 04, 05, 06, 07 10.0 in. wg(2490 Pa)

5.0 in. wg(1245 Pa)

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in damageto equipment.

When connecting the gas line to the unit gas valve,the installer MUST use a backup wrench to preventdamage to the valve.

CAUTION!

Install a gas supply line that runs to the unit heatingsection. Refer to the NFPA 54/NFGC or equivalent codefor gas pipe sizing data. Do not use a pipe size smallerthan 1/2--in. Size the gas supply line to allow for amaximum pressure drop of 0.5--in wg (124 Pa) betweengas regulator source and unit gas valve connection whenunit is operating at high--fire flow rate.The gas supply line can approach the unit in three ways:horizontally from outside the unit (across the roof),thru--curb/under unit basepan (accessory kit required) orthrough unit basepan (factory--option or accessory kitrequired). Consult accessory kit installation instructionsfor details on these installation methods. Observeclearance to gas line components per Fig. 14.

LEGEND

* Field supplied.NOTE: Follow all local codes.

NFGC – National Fuel Gas Code

STEEL PIPENOMINAL DIAMETER

(in.)

SPACING OF SUPPORTSX DIMENSION

(ft)1/2

3/4 or 111/4 or larger

68

10

X

BASE UNIT

BASE RAILROOF CURB

9” MINIMUM CLEARANCEFOR PANEL REMOVAL

MANUAL GASSHUTOFF VALVE*

GASREGULATOR*

48” MINIMUM

DRIP LEGPER NFGC*

FIELD-FABRICATEDSUPPORT*

FROM GAS METER

C11091Fig. 14 -- Gas Piping Guide

(with Accessory Thru--the--Curb Service Connections)

Factory--Option Thru--Base Connections(Gas Connections) —

This service connection kit consists of a 1/2--in NPT gasadapter fitting (brass), a 1/2--in electrical bulkheadconnector and a 3/4--in electrical bulkhead connector, allfactory--installed in the embossed (raised) section of theunit basepan in the condenser section.

LOW VOLTAGECONDUITCONNECTOR

HIGH VOLTAGECONDUITCONNECTOR

BRASS FITTING FOR 3 TO 6 TON UNITS.

C13410

Fig. 15 -- Thru--Base Connection Fittings

580J

14

The thru--base gas connector has male and female threads.The male threads protrude above the basepan of the unit;the female threads protrude below the basepan.Check tightness of connector lock nuts before connectinggas piping.Install a 1/2--in NPT street elbow on the thru--base gasfitting. Attach a 1/2--in pipe nipple with minimum lengthof 16--in (406 mm) (field--supplied) to the street elbowand extend it through the access panel at the gas supportbracket. See Fig. 16.

EMBOSSMENT BRASS FITTINGFOR 3-6 TON UNITS

SUPPORTBRACKET

C08016

Fig. 16 -- Gas Line Piping for 3 to 6 Ton Units Only

Other hardware required to complete the installation of thegas supply line will include a manual shutoff valve, asediment trap (drip leg) and a ground--joint union. Apressure regulator valve may also be required (to convert gaspressure from pounds to inches of pressure). The manualshutoff valve must be located within 6--ft (1.83 m) of theunit. The union, located in the final leg entering the unit,must be located at least 9--in (230 mm) away from theaccess panel to permit the panel to be removed for service.If a regulator valve is installed, it must be located aminimum of 4--ft (1220 mm) away from the unit’s flueoutlet. Some municipal codes require that the manual shutoffvalve be located upstream of the sediment trap. See Figures17 and 18 for typical piping arrangements for gas piping thathas been routed through the sidewall of the curb. See Fig. 19for typical piping arrangement when thru--base is used.Ensure that all piping does not block access to the unit’smain control box or limit the required working space in frontof the control box.

9” (229mm) min

Union

Shut OffValve

DripLeg

Thru-Curb Adapter

Unit Base Rail

C07469Fig. 17 -- Gas Piping

DripLeg

Shut OffValve

Union

Thru-Curb Adapter

BurnerAccessPanel

9” (229mm) min

Unit Base Rail

C07470Fig. 18 -- Gas Piping

C08018

Fig. 19 -- Gas Piping Thru--Base Connections

580J

15

When installing the gas supply line, observe local codespertaining to gas pipe installations. Refer to the NFPA54/ANSI Z223.1 NFGC latest edition (in Canada, CAN/CSAB149.1). In the absence of local building codes, adhere tothe following pertinent recommendations:

1. Avoid low spots in long runs of pipe. Grade all pipe1/4--in. in every 15 ft (7 mm in every 5 m) to preventtraps. Grade all horizontal runs downward to risers.Use risers to connect to heating section and to meter.

2. Protect all segments of piping system against physicaland thermal damage. Support all piping with appro-priate straps, hangers, etc. Use a minimum of onehanger every 6 ft (1.8 m). For pipe sizes larger than1/2--in., follow recommendations of national codes.

3. Apply joint compound (pipe dope) sparingly and onlyto male threads of joint when making pipe connec-tions. Use only pipe dope that is resistant to action ofliquefied petroleum gases as specified by local and/ornational codes. If using PTFE (Teflon) tape, ensurethe material is Double Density type and is labeled foruse on gas lines. Apply tape per manufacturer’s in-structions.

4. Pressure--test all gas piping in accordance with localand national plumbing and gas codes before connect-ing piping to unit.

NOTE: Pressure test the gas supply system after the gassupply piping is connected to the gas valve. The supplypiping must be disconnected from the gas valve during thetesting of the piping systems when test pressure is inexcess of 0.5 psig (3450 Pa). Pressure test the gas supplypiping system at pressures equal to or less than 0.5 psig(3450 Pa). The unit heating section must be isolated fromthe gas piping system by closing the external main manualshutoff valve and slightly opening the ground--joint union.

Check for gas leaks at the field--installed andfactory--installed gas lines after all piping connectionshave been completed. Use soap--and--water solution (ormethod specified by local codes and/or regulations).

FIRE OR EXPLOSION HAZARD

Failure to follow this warning could result in personalinjury, death and/or property damage.

S Connect gas pipe to unit using a backup wrench toavoid damaging gas controls.

S Never purge a gas line into a combustion chamber.S Never test for gas leaks with an open flame. Use a

commercially available soap solution madespecifically for the detection of leaks to check allconnections.

S Use proper length of pipe to avoid stress on gascontrol manifold.

! WARNING

NOTE: If orifice hole appears damaged or it is suspectedto have been redrilled, check orifice hole with a numbereddrill bit of correct size. Never redrill an orifice. Aburr--free and squarely aligned orifice hole is essential forproper flame characteristics.

BURNER ORIFICE

A93059

Fig. 20 -- Orifice Hole

Step 11 — Install External Condensate Trapand Line

The unit has one 3/4-in. condensate drain connection onthe end of the condensate pan and an alternate connectionon the bottom. See Fig. 21. Unit airflow configurationdoes not determine which drain connection to use. Eitherdrain connection can be used with vertical or horizontalapplications.When using the standard side drain connection, ensure thered plug in the alternate bottom connection is tight. Dothis before setting the unit in place. The red drain pan canbe tightened with a 1/2--in. square socket drive extension.To use the alternate bottom drain connection, remove thered drain plug from the bottom connection (use a 1/2--in.square socket drive extension) and install it in the sidedrain connection.The piping for the condensate drain and external trap canbe completed after the unit is in place. See Fig. 22.

DRAIN(FACTORY-INSTALLED)

PLUG

CONDENSATE PAN (SIDE VIEW)

STANDARDSIDE DRAIN

ALTERNATEBOTTOM DRAIN

C08021

Fig. 21 -- Condensate Drain Pan (Side View)

NOTE: If the alternate bottom drain is not used check thedrain plug for tightness prior to setting the unit on the roofcurb.

580J

16

NOTE: Trap should be deep enough to offset maximum unit staticdifference. A 4” (102) trap is recommended.

MINIMUM PITCH1” (25mm) PER10’ (3m) OF LINE

BASE RAIL

OPENVENT

TO ROOFDRAIN

DRAIN PLUG

ROOFCURB

SEE NOTE

2˝ (51) MIN

C08022

Fig. 22 -- Condensate Drain Piping Details

All units must have an external trap for condensatedrainage. Install a trap at least 4-in. (102 mm) deep andprotect against freeze-up. If drain line is installeddownstream from the external trap, pitch the line awayfrom the unit at 1-in. per 10 ft (25 mm in 3 m) of run. Donot use a pipe size smaller than the unit connection(3/4-in.).

Step 12 — Make Electrical Connections

ELECTRICAL SHOCK HAZARD


Do not use gas piping as an electrical ground. Unitcabinet must have an uninterrupted, unbrokenelectrical ground to minimize the possibility ofpersonal injury if an electrical fault should occur. Thisground may consist of electrical wire connected tounit ground lug in control compartment, or conduitapproved for electrical ground when installed inaccordance with NEC (National Electrical Code);ANSI/NFPA 70, latest edition (in Canada, CanadianElectrical Code CSA [Canadian StandardsAssociation] C22.1), and local electrical codes.

! WARNING

NOTE: Field--supplied wiring shall conform with thelimitations of minimum 63_F (33_C) rise.

Field Power Supply —

If equipped with optional Powered Convenience Outlet:The power source leads to the convenience outlet’stransformer primary are not factory connected. Installermust connect these leads according to required operationof the convenience outlet. If an always--energizedconvenience outlet operation is desired, connect thesource leads to the line side of the unit--mounteddisconnect. (Check with local codes to ensure this methodis acceptable in your area.) If a de--energize via unitdisconnect switch operation of the convenience outlet isdesired, connect the source leads to the load side of the

unit disconnect. On a unit without a unit--mounteddisconnect, connect the source leads to compressorcontactor C and indoor fan contactor IFC pressure lugswith unit field power leads.

Refer to Fig. 30 for power transformer connections and thediscussion on connecting the convenience outlet on page 15.

Field power wires are connected to the unit at line--sidepressure lugs on compressor contactor C and indoor fancontactor IFC (see wiring diagram label for control boxcomponent arrangement) or at factory--installed optionnon--fused disconnect switch. Max wire size is #2 AWG(copper only). (See Fig. 23.)NOTE: TEST LEADS -- Unit may be equipped withshort leads (pigtails) on the field line connection points oncontactor C or optional disconnect switch. These leads arefor factory run--test purposes only; remove and discardbefore connecting field power wires to unit connectionpoints. Make field power connections directly to lineconnection pressure lugs only.

C11 23

Disconnectper

NEC

208/230-1-60

or

Disconnectper

NEC

11 13 13 23

L1 L2 L3

BLK YEL BLU

TB

C IFC 1-ph Belt Drive IFM(230 & 460-V)orDirect Drive IFM(575-V only)

208/230-3-60460-3-60575-3-60

Units Without Disconnect Option

Units With Disconnect Option

L1

L2

L3

2

4

6

1

3

5

OptionalDisconnect

Switch

Disconnect factory test leads; discard.

FactoryWiring

1-ph Belt Drive IFM(575-V only)

C11382

Fig. 23 -- Power Wiring Connections

! WARNINGFIRE HAZARD

Failure to follow this warning could result inintermittent operation or performance satisfaction.

Do not connect aluminum wire between disconnectswitch and 580J unit. Use only copper wire.(See Fig. 24.)

580J

17

COPPER

WIRE ONLY

ELECTRICDISCONNECT

SWITCH

ALUMINUMWIRE

A93033

Fig. 24 -- Disconnect Switch and Unit

Units with Factory--Installed Non--Fused Disconnect —

The factory--installed option non--fused disconnect (NFD)switch is located in a weatherproof enclosure locatedunder the main control box. The manual switch handle andshaft are shipped in the disconnect enclosure. Assemble theshaft and handle to the switch at this point. Discard thefactory test leads (see Fig. 23).Connect field power supply conductors to LINE sideterminals when the switch enclosure cover is removed toattach the handle.

C12278

Fig. 25 -- Location of Non--Fused Disconnect Enclosure

To field install the NFD shaft and handle:

1. Remove the unit front pane (see Fig. 2).2. Remove (3) hex screws on the NFD enclosure -- (2) on

the face of the cover and (1) on the left side cover.3. Remove the front cover of the NFD enclosure.4. Make sure the NFD shipped from the factory is at

OFF position (the arrow on the black handle knob isat OFF).

5. Insert the shaft with the cross pin on the top of the shaftin the horizontal position.

6. Measure from the tip of the shaft to the top surface ofthe black pointer; the measurement should be 3.75 --3.88 in. (95 -- 99 mm).

7. Tighten the locking screw to secure the shaft to theNFD.

8. Turn the handle to the OFF position with red arrowpointing at OFF.

9. Install the handle on to the painted cover horizontallywith the red arrow pointing to the left.

10. Secure the handle to the painted cover with (2) screwsand lock washers supplied.

11. Engaging the shaft into the handle socket, re--install(3) hex screws on the NFD enclosure.

12. Re--install the unit front panel.

C12279

Fig. 26 -- Handle and Shaft Assembly for NFD

Units Without Factory--InstalledNon--Fused Disconnect —

When installing units, provide a disconnect switch perNEC (National Electrical Code) of adequate size.Disconnect sizing data is provided on the unit informativeplate. Locate on unit cabinet or within sight of the unit pernational or local codes. Do not cover unit informativeplate if mounting the disconnect on the unit cabinet.

All Units —

All field wiring must comply with NEC and all localcodes. Size wire based on MCA (Minimum Circuit Amps)on the unit informative plate. See Fig. 23 and the unitlabel diagram for power wiring connections to the unitpower terminal blocks and equipment ground. Maximumwire size is #2 ga AWG per pole.Provide a ground--fault and short--circuit over--currentprotection device (fuse or breaker) per NEC Article 440(or local codes). Refer to unit informative data plate forMOCP (Maximum Over--current Protection) device size.All field wiring must comply with the NEC and localrequirements.

All units except 208/230-v units are factory wired for thevoltage shown on the nameplate. If the 208/230-v unit isto be connected to a 208-v power supply, the controltransformer must be rewired by moving the black wirewith the 1/4-in. female spade connector from the 230--vconnection and moving it to the 200-v 1/4-in. maleterminal on the primary side of the transformer. Refer tounit label diagram for additional information. Field powerwires will be connected line--side pressure lugs on thepower terminal block or at factory--installed optionnon--fused disconnect.

NOTE: Check all factory and field electrical connectionsfor tightness.

580J

18

Convenience Outlets —

ELECTRICAL OPERATION HAZARD


Units with convenience outlet circuits may usemultiple disconnects. Check convenience outlet forpower status before opening unit for service. Locateits disconnect switch, if appropriate, and open it.Lock--out and tag--out this switch, if necessary.

! WARNING

Two types of convenience outlets are offered on 580Jmodels: Non--powered and unit--powered. Both typesprovide a 125--volt GFCI (ground--fault circuit--interrupter)duplex receptacle rated at 15--A behind a hingedwaterproof access cover, located on the end panel of theunit. See Fig. 27.

NOTE: Unit powered convenience outlets are not availableas factory installed options for single phase (--J voltage code)models.

ConvenienceOutletGFCI

Pwd-COFuse Switch

Pwd-COTransformer

Control BoxAccess Panel

C08128

Fig. 27 -- Convenience Outlet Location

Installing Weatherproof Cover: A weatherproofwhile-in-use cover for the factory-installed convenienceoutlets is now required by UL standards. This covercannot be factory-mounted due its depth; it must beinstalled at unit installation. For shipment, theconvenience outlet is covered with a blank cover plate.On units with electro--mechanical controls the weatherproofcover kit is shipped in the unit’s control box. The kitincludes the hinged cover, a backing plate and gasket.On units with the factory installed RTU Open option theweatherproof cover kit is secured to the basepan underneaththe control box. See Fig. 28.DISCONNECT ALL POWER TO UNIT ANDCONVENIENCE OUTLET. LOCK--OUT AND TAG--OUTALL POWER.

WeatherproofCover

C150149

Fig. 28 -- Weatherproof Cover -- Shipping Location onUnits with Factory Installed RTU Open

Remove the blank cover plate at the convenience outlet;discard the blank cover.Loosen the two screws at the GFCI duplex outlet, untilapproximately 1/2-in (13 mm) under screw heads areexposed. Press the gasket over the screw heads. Slip thebacking plate over the screw heads at the keyhole slotsand align with the gasket; tighten the two screws untilsnug (do not over-tighten).Mount the weatherproof cover to the backing plate asshown in Fig. 29. Remove two slot fillers in the bottom ofthe cover to permit service tool cords to exit the cover.Check for full closing and latching.

RECEPTACLENOT SHOWN

COVER – WHILE-IN-USE WEATHERPROOF

BASE PLATE FOR GFCI RECEPTACLE

C09022

Fig. 29 -- Weatherproof Cover Installation

Non--powered type: This type requires the fieldinstallation of a general--purpose 125--volt 15--A circuitpowered from a source elsewhere in the building. Observenational and local codes when selecting wire size, fuse orbreaker requirements and disconnect switch size andlocation. Route 125--v power supply conductors into thebottom of the utility box containing the duplex receptacle.

Unit--powered type: A unit--mounted transformer isfactory--installed to stepdown the main power supplyvoltage to the unit to 115--v at the duplex receptacle. Thisoption also includes a manual switch with fuse, located ina utility box and mounted on a bracket behind theconvenience outlet; access is through the unit’s controlbox access panel. See Fig. 27.

580J

19

The primary leads to the convenience outlet transformer arenot factory--connected. Selection of primary power source isa customer--option. If local codes permit, the transformerprimary leads can be connected at the line--side terminals onthe unit--mounted non--fused disconnect or HACR breakerswitch; this will provide service power to the unit when theunit disconnect switch or HACR switch is open. Otherconnection methods will result in the convenience outletcircuit being de--energized when the unit disconnect orHACR switch is open. See Fig. 30.

C08283

UNITVOLTAGE

CONNECTAS

PRIMARYCONNECTIONS

TRANSFORMERTERMINALS

208,230 240 L1: RED +YEL

L2: BLU + GRAH1 + H3H2 + H4

460 480L1: REDSplice BLU + YELL2: GRA

H1H2 + H3H4

575 600 L1: REDL2: GRA

H1H2

Fig. 30 -- Powered Convenience Outlet Wiring

Using unit--mounted convenience outlets: Units withunit--mounted convenience outlet circuits will oftenrequire that two disconnects be opened to de--energize allpower to the unit. Treat all units as electrically energizeduntil the convenience outlet power is also checked andde--energization is confirmed. Observe National ElectricalCode Article 210, Branch Circuits, for use of convenienceoutlets.

Fuse on power type: The factory fuse is a Bussman“Fusetron” T--15, non--renewable screw--in (Edison base)type plug fuse.

B50HJ542739

Maximum Continuous use : 8 Amps 24/7

Convenience Outlet UtilizationNOTICE

C13415

Fig. 31 -- Convenience Outlet Utilization Notice Label

Test the GFCI receptacle by pressing the TEST button onthe face of the receptacle to trip and open the receptacle.Check for proper grounding wires and power line phasingif the GFCI receptacle does not trip as required. Press theRESET button to clear the tripped condition.

Factory--Option Thru--Base Connections(Electrical Connections) —

This service connection kit consists of a 1/2--in NPT gasadapter fitting (brass), a 1/2--in electrical bulkheadconnector and a 3/4--in electrical bulkhead connector, allfactory--installed in the embossed (raised) section of theunit basepan in the condenser section. The 3/4--inbulkhead connector enables the low--voltage control wiresto pass through the basepan. The 1/2--in electricalbulkhead connector allows the high--voltage power wiresto pass through the basepan. See Fig. 15.Check tightness of connector lock nuts before connectingelectrical conduits.Field--supplied and field--installed liquid tight conduitconnectors and conduit may be attached to the connectorson the basepan. Pull correctly rated high voltage and lowvoltage through appropriate conduits. Connect the powerconduit to the internal disconnect (if unit is so equipped)or to the external disconnect (through unit side panel). Ahole must be field cut in the main control box bottom onthe left side so the 24--v control connections can be made.Connect the control power conduit to the unit control boxat this hole.

Units without Thru--Base Connections —

1. Install power wiring conduit through side panel open-ings. Install conduit between disconnect and controlbox.

2. Install power lines to terminal connections as shownin Fig. 23.

Voltage to compressor terminals during operation must bewithin voltage range indicated on unit nameplate. SeeTable 8. On 3--phase units, voltages between phases mustbe balanced within 2% and the current within 10%. Usethe formula shown in the legend for Table 8, Note 2 todetermine the percent of voltage imbalance. Operation onimproper line voltage or excessive phase imbalanceconstitutes abuse and may cause damage to electricalcomponents. Such operation would invalidate anyapplicable Bryant warranty.

Field Control Wiring —

The 580J unit requires an external temperature controldevice. This device can be a thermostat emulation deviceprovided as part of a third--party Building ManagementSystem.

Thermostat —

Install a Bryant--approved accessory thermostat accordingto installation instructions included with the accessory.For complete economizer function, select a two--stagecooling thermostat. Locate the thermostat accessory on asolid wall in the conditioned space to sense averagetemperature in accordance with the thermostat installationinstructions.

580J

20

If the thermostat contains a logic circuit requiring 24--vpower, use a thermostat cable or equivalent single leads ofdifferent colors with minimum of seven leads. If thethermostat does not require a 24--v source (no “C”connection required), use a thermostat cable or equivalentwith minimum of six leads. Check the thermostatinstallation instructions for additional features whichmight require additional conductors in the cable.For wire runs up to 50 ft. (15 m), use no. 18 AWG(American Wire Gage) insulated wire [35_C (95_F)minimum]. For 50 to 75 ft. (15 to 23 m), use no. 16 AWGinsulated wire [35_C (95_F) minimum]. For over 75 ft.(23 m), use no. 14 AWG insulated wire [35_C (95_F)minimum]. All wire sizes larger than no. 18 AWG cannotbe directly connected to the thermostat and will require ajunction box and splice at the thermostat.

X

C

G

W2

C

W2

G

W1

O/B/Y2 Y2

R

W1

R

Y1 Y1

THERMOSTAT

(Note 1) (Note 2)

Note 1: Typical multi-function marking. Follow manufacturer’s configuration Instructions to select Y2.

Note 2: Y2 to Y2 connection required on single-stage cooling units when integrated economizer function is desired.

Field Wiring

CentralTerminalBoard

TypicalThermostatConnections

C08069

Fig. 32 -- Low--Voltage Connections

Unit without Thru--Base Connection Kit —

Pass the thermostat control wires through the holeprovided in the corner post; then feed the wires throughthe raceway built into the corner post to the control box.Pull the wires over to the terminal strip on the upper--leftcorner of the Controls Connection Board. See Fig. 33.NOTE: If thru--the--bottom connections accessory isused, refer to the accessory installation instructions forinformation on routing power and control wiring.

RACEWAY

HOLE IN END PANEL (HIDDEN)

C08027

Fig. 33 -- Field Control Wiring Raceway

Heat Anticipator Settings —

Set heat anticipator settings at 0.14 amp for the first stageand 0.14 amp for second--stage heating, when available.

EconoMi$er X (Factory--Installed Option) —

For details on operating 580J units equipped with thefactory--installed EconoMi$er X option, refer toFactory--Installed Economizers for 580J/558J/581J/551J/549J/582J/559J/547J Rooftop Units, 3 to 27.5 NominalTons. Economizer Supplement Related to California Title24 (Catalog No. II--SUP--TI24--02, or later).

580J

21

Perfect Humidityt Control Connections

Perfect Humidity -- Space RH Controller —

NOTE: Perfect Humidity is a factory installed optionwhich is available for 07 models only.

The Perfect Humidity dehumidification system requires afield--supplied and --installed space relative humiditycontrol device. This device may be a separate humidistatcontrol (contact closes on rise in space RH above controlsetpoint) or a combination thermostat--humidistat controldevice such as Bryant’s EDGER Pro Thermidistat withisolated contact set for dehumidification control.

To connect a field--supplied humidistat:1. Route the humidistat 2--conductor cable

(field--supplied) through the hole provided in the unitcorner post.

2. Feed wires through the raceway built into the cornerpost (see Fig. 33) to the 24--v barrier located on theleft side of the control box. The raceway provides theUL--required clearance between high--voltage andlow--voltage wiring.

3. Use wire nuts to connect humidistat cable to twoPINK leads in the low–voltage wiring as shown inFig. 35.

To connect the Edge Programmable Thermidistat(T6--PRH01--A):

1. Route the Edge Programmable Thermostat multi--conductor cable (field--supplied) through the holeprovided in the unit corner post.

2. Feed wires through the raceway build into the cornerpost (see Fig. 33) to the 24--v barrier located on the

left side of the control box. The raceway provides theUL--required clearance between high--voltage andlow--voltage wiring.

3. The Edge Programmable Thermostat has dry contactsat terminals D1 and D2 for dehumidificationoperation (see Fig. 36). The dry contacts must bewired between CTB terminal R and the PINK lead tothe LTLO switch with field--supplied wire nuts. Referto the installation instructions included with theBryant Edge Programmable Thermidistat device formore information.

C09502

Fig. 34 -- Edge Programmable Thermostat

580J

22

C150150

Fig. 35 -- 580J Size 07 (unit with Perfect Humidityt Dehumidification System) Humidistat Wiring

RcRhW1

GY2C

O/W2/BY1

OATRRS

SRTNHUM

D1D2V+Vg

X*

C

G

W2

W1

Y2

Y1

R

Edge Programable ThermostatUnit CTB

THERMOSTAT

*Connection not required.

Perfect Humidity™ FIOP

C09501Fig. 36 -- 580J Size 07 (unit with Perfect Humidity Dehumidification System)

with Edge Programmable Thermostat

580J

23

RTU Open Control System

The RTU Open control is factory--mounted in the 580Junit’s main control box, to the left of the CTB. SeeFig. 38. Factory wiring is completed through harnessesconnected to the CTB. Field connections for RTU Opensensors will be made at the Phoenix connectors on theRTU Open board. The factory--installed RTU Opencontrol includes the supply--air temperature (SAT) sensor.The outdoor air temperature (OAT) sensor is included inthe FIOP/accessory EconoMi$er2 package.

The RTU Open controller is an integrated component of theBryant rooftop unit. Its internal application programmingprovides optimum performance and energy efficiency. RTUOpen enables the unit to run in 100% stand--alone controlmode or a Third Party Building Automation System (BAS).On--board DIP switches allow you to select your protocol(and baud rate) of choice among the four most popularprotocols in use today: BACnet, Modbus, Johnson N2 andLonWorks. (See Fig. 37.)

Refer to Table 6, RTU Open Controller Inputs and Outputsfor locations of all connections to the RTU Open board.

J4J2J1

J5 J5

J22

J17

J19 J14

J11

J22

J3

J13

J12

J15J20

Network Comm

Configurable - Input_8

24 VAC


24 VAC


24 VAC

Input_9 (Hum

idistat)24 VA

C

24 VAC

Input _8 (Enthalpy)A

O-1 (EC

ON

)G

nd(O

AT)G

nd(SAT)

Input_5 (SMK

)

Input_4 (R)

B

O-5 (Y1)

B

O-4 (Y2)

B

O-3 (W

1)

BO

-2 (W2)

B

O-1 (G

)

Gnd

Input_3 (X)

24 VA

C IN

+24 VDC

Input_2 (CO

2/RH

)G

nd+24 VD

CInput_1 (C

O2/R

H)

Gnd

Board Power

(AO-1)

0-10VDC

4-20mA

BO-6(H) DehumidificationBO-7 (Reversing Valve/High Speed Fan/Y3)

BO-8(Power Exhaust)

LonWorksOption CardPort

Example set forBACnet MS/TPand 76.8K baud(1, 2, and 4 ON)

Protocol Selector SPT (temp input) BACnet, Modbus, or N2(LON connection J15)SPT (common)

SPT (offset input)

*Removeboth for 0-5V

AO-2GND

(2-10V)

3-VoltLithiumBattery

BO-1 BO-2 BO-3 BO-4 BO-5

BO-6

BO-7

BO-8

VFD Output

C14162Fig. 37 -- RTU Open Multi--Protocol Control Board

580J

24

C150153Fig. 38 -- RTU Open System Control Wiring Diagram

580J

25

C150154Fig. 39 -- RTU Open System Control Wiring Diagram with Perfect Humidity

580J

26

Table 6 – RTU Open Controller Inputs and Outputs

POINT NAME BACnet OBJECTNAME TYPE OF I/O CONNECTION PIN

NUMBER(S) CHANNEL DESIGNATION

DEDICATED INPUTSSpace Temp / Zone Temp zone_temp AI (10K Thermistor) J20---1 & 2 Analog Input 10

Supply Air Temperature sa_temp AI (10K Thermistor) J2---1 & 2 Analog Input 6

Outside Air Temperature oa_temp AI (10K Thermistor) J2---3 & 4 Analog Input 7

Space Temperature Offset Pot stpt_adj_offset AI (100K Potentiometer) J20---3 & 4 Analog Input 11

Safety Chain Feedback safety_status BI (24 VAC) J1---9 Binary Input 4

Compressor Safety Status (1) comp_status BI (24 VAC) J1---2 Binary Input 3

Fire Shutdown Status firedown_status BI (24 VAC) J1---10 Binary Input 5

Enthalpy Status enthalpy_status BI (24 VAC) J2---6 & 7 Binary Input 8

Humidistat Input Status humstat_status BI (24 VAC) J5---7 & 8 Binary Input 9

Zone Temperature n/a n/a J13---1---4 Rnet

CONFIGURABLE INPUTS (4)

Indoor Air CO2 iaq AI (4---20 mA)J4---2 & 3 or J4---5 & 6

Analog Input 2

Outdoor Air CO2 oaq AI (4---20 mA) Analog Input 1

Space Relative Humidity space_rh AI (4---20 mA) Analog Input 10

Supply Fan Status (2) sfan_status BI (24 VAC)

J5---1 & 2 or J5---3 & 4,J5---5 & 6 or J5---7 & 8 (3)

Binary Input 3, 5, 8, or 9, except where intrinsic input is used

Filter Status (2) filter_status BI (24 VAC) Binary Input 3, 5, 8, or 9, except where intrinsic input is used

Door Contact (2) door_contact_status BI (24 VAC) Binary Input 3, 5, 8, or 9, except where intrinsic input is used

Remote Occupancy input (2) occ_contact_status BI (24 VAC) Binary Input 3, 5, 8, or 9, except where intrinsic input is used

IGC input (2) igcovr_status BI (24 VAC) Binary Input 9. Mandatory input on gas heat units.

OUTPUTSEconomizer Output econ_output AO (4---20mA) J2---5 Analog Output 1

Supply Fan VFD vfd_output AO (2---10Vdc) J22---1 & 2 Analog Output 2

Supply Fan Relay sfan BO Relay (24VAC, 1A) J1---4 Binary Output 1 (G)

Cool 1 Relay State comp_1 BO Relay (24VAC, 1A) J1---8 Binary Output 5 (Y1)

Cool 2 Relay State comp_2 BO Relay (24VAC, 1A) J1---7 Binary Output 4 (Y2)

Cool 3 Relay State comp_3 BO Relay (24VAC, 1A) J11---5 & 6 Binary Output 7 (Y3)

Heat 1 Relay State heat_1 BO Relay (24VAC, 1A) J1---6 Binary Output 3 (W1)

Heat 2 Relay State heat_2 BO Relay (24VAC, 1A) J1---5 Binary Output 2 (W2)

Power Exhaust Relay State pexh BO Relay (24VAC, 1A) J11---2 & 3 (N.O.) Binary Output 8 (PE)

Dehumidification Relay dehum BO Relay (24VAC, 1A) J11---7 & 8 (N.O.) Binary Output 6

LEGENDAI --- Analog InputAO --- Analog OutputBI --- Binary InputBO --- Binary Output(1)Safety Chain Feedback: 24Vac required at this terminal to provide “Run Enable” status. See Input/Output section for additional instructions.(2)These inputs are configurable. If installed, they take the place of the default input on the specific channel. See appropriate Input Configuration Section for wiring and setup instructions.(3)Parallel pins J5---1 = J2---6, J5---3 = J1---10, J5---5 = J1---2 are used for filed installation.(4)Refer to the input configuration and accessory sections of the RTU Open Multi ---Protocol Controller Controls, Start ---Up, Operation and Troubleshooting manual for more detail.

The RTU Open controller requires the use of a Bryantspace sensor. A standard thermostat cannot be used withthe RTU Open system.

Supply Air Temperature (SAT) Sensor —

On FIOP--equipped 580J unit, the unit is supplied with asupply--air temperature (SAT) sensor (33ZCSENSAT).This sensor is a tubular probe type, approx 6--inches (152mm) in length. It is a nominal 10--k ohm thermistor.

The SAT is factory--wired. The SAT probe is wire--tied tothe supply--air opening (on the horizontal opening end) inits shipping position. Remove the sensor for installation.Re--position the sensor in the flange of the supply--airopening or in the supply air duct (as required by localcodes). Drill or punch a 1/2--in. hole in the flange or duct.Use two field--supplied, self--drilling screws to secure thesensor probe in a horizontal orientation. See Fig. 40.

Outdoor Air Temperature (OAT) Sensor —

The OAT is factory--mounted in the EconoMi$er2 (FIOP oraccessory). It is a nominal 10k ohm thermistor attached toan eyelet mounting ring.

SUPPLY AIR RETURN AIR

SUPPLY AIRTEMPERATURESENSOR

ROOFCURB

C08200

Fig. 40 -- Typical Mounting Location for Supply AirTemperature (SAT) Sensor on Small Rooftop Units

580J

27

EconoMi$er2 —

The RTU Open control is used with EconoMi$er2 (optionor accessory) for outdoor air management. The damperposition is controlled directly by the RTU Open control;EconoMi$er2 has no internal logic device.

Outdoor air management functions can be enhanced withfield--installation of these accessory control devices:

Enthalpy control (outdoor air or differential sensors)Space CO2 sensorOutdoor air CO2 sensor

Field Connections

Field connections for accessory sensors and input devicesare made the RTU Open, at plugs J1, J2, J4, J5, J11 andJ20. All field control wiring that connects to the RTUOpen must be routed through the raceway built into thecorner post as shown in Fig. 33. The raceway provides theUL required clearance between high-- and low--voltagewiring. Pass the control wires through the hole provided inthe corner post, then feed the wires thorough the racewayto the RTU Open. Connect to the wires to the removablePhoenix connectors and then reconnect the connectors tothe board.

Space Temperature (SPT) Sensors —SPT sensors available from Bryant are resistive inputnon-communicating (T55, T56, and T59) sensors. Thesesensors have a variety of options consisting of: timedoverride button, set point adjustment, and a LCD screen.Space temperature can be also be written to from abuilding network or zoning system. However, it is stillrecommended that return air duct sensor be installed toallow stand-alone operation for back-up. Refer to theconfiguration section for details on controllerconfigurations associated with space sensors.

S 33ZCT55SPT, space temperature sensor with overridebutton (T--55)

S 33ZCT56SPT, space temperature sensor with overridebutton and setpoint adjustment (T--56)

S 33ZCT59SPT, space temperature sensor with LCD(liquid crystal display) screen, override button, andsetpoint adjustment (T--59)

Use 20 gauge wire to connect the sensor to the controller.The wire is suitable for distances of up to 500 ft. Use athree--conductor shielded cable for the sensor and setpointadjustment connections. If the setpoint adjustment(slidebar) is not required, then an unshielded, 18 or 20gauge, two--conductor, twisted pair cable may be used.

Connect T--55: See Fig. 41 for typical T--55 internalconnections. Connect the T--55 SEN terminals to RTUOpen J20--1 and J20--2. See Fig. 42.

2 3 4 5 61

SW1

SEN

BRN (GND)BLU (SPT)

RED(+)WHT(GND)

BLK(-) CCN COM

SENSOR WIRING

C08201Fig. 41 -- T--55 Space Temperature Sensor Wiring

SEN

SEN

J20-1

J20-2

C08460Fig. 42 -- RTU Open T--55 Sensor Connections

Connect T--56: See Fig. 43 for T--56 internal connections.Install a jumper between SEN and SET terminals asillustrated. Connect T--56 terminals to RTU Open J20--1,J20--2 and J20--3 per Fig. 44.

2 3 4 5 61

SW1

SEN SET

Cool Warm

BRN (GND)BLU (SPT)

RED(+)WHT(GND)

BLK(-) CCN COM

SENSOR WIRING

JUMPERTERMINALSAS SHOWN

BLK(T56)

C08202Fig. 43 -- T--56 Internal Connections

SEN J20-1

J20-2SEN

SET

Jumper

J20-3SETC08461

Fig. 44 -- RTU Open T--56 Sensor Connections

580J

28

Connect T--59: The T--59 space sensor requires aseparate, isolated power supply of 24 VAC. See Fig. 45for internal connections at the T--59. Connect the SENterminal (BLU) to RTU Open J20--1. Connect the COMterminal (BRN) to J20--2. Connect the SET terminal (STOor BLK) to J20--3.

OR SET SEN

OPB COM- PWR+

BLU (SPT)

BLK (STO)

24 VAC

SENSORWIRING

POWERWIRING

BRN (COM)

NOTE: Must use a separate isolated transformer.

J20-3

J20-2

J20-1

C10291

Fig. 45 -- Space Temperature Sensor Typical Wiring(33ZCT59SPT)

Indoor Air Quality (CO2) Sensor —

The indoor air quality sensor accessory monitors spacecarbon dioxide (CO2) levels. This information is used tomonitor IAQ levels. Several types of sensors are available,for wall mounting in the space or in return duct, with andwithout LCD display, and in combination with spacetemperature sensors. Sensors use infrared technology tomeasure the levels of CO2 present in the space air.

The CO2 sensors are all factory set for a range of 0 to2000 ppm and a linear mA output of 4 to 20. Refer to theinstructions supplied with the CO2 sensor for electricalrequirements and terminal locations. See Fig. 46 fortypical CO2 sensor wiring schematic.

To accurately monitor the quality of the air in theconditioned air space, locate the sensor near a return--airgrille (if present) so it senses the concentration of CO2leaving the space. The sensor should be mounted in alocation to avoid direct breath contact.

Do not mount the IAQ sensor in drafty areas such as nearsupply ducts, open windows, fans, or over heat sources.Allow at least 3 ft (0.9 m) between the sensor and anycorner. Avoid mounting the sensor where it is influencedby the supply air; the sensor gives inaccurate readings ifthe supply air is blown directly onto the sensor or if thesupply air does not have a chance to mix with the room airbefore it is drawn into the return airstream.

8 7 6 5 4 3 2 12 1

H G 24 VACOR

24 VDC

NC ALARMRELAYCONTACTS

COMNO }

0-10VDCSIG COM4-20mA

+

+-

+ -

J3 J4

C08635

Fig. 46 -- Indoor/Outdoor Air Quality (CO2) Sensor(33ZCSENCO2) -- Typical Wiring Diagram

Wiring the Indoor Air Quality Sensor: For each sensor,use two 2--conductor 18 AWG (American Wire Gage)twisted--pair cables (unshielded) to connect the separateisolated 24 vac power source to the sensor and to connectthe sensor to the control board terminals.

To connect the sensor to the control, identify the positive(4 to 20 mA) and ground (SIG COM) terminals on thesensor. See Fig. 46. Connect the 4--20 mA terminal toRTU Open J4--2 and connect the SIG COM terminal toRTU Open J4--3. See Fig. 47.

SEN

COM

J4-2

J4-3

IAQ Sensor

24 VACC08462

Fig. 47 -- RTU Open / Indoor CO2 Sensor(33ZCSENCO2) Connections

Outdoor Air Quality Sensor(PNO 33ZCSENCO2 plus weatherproof enclosure) —

The outdoor air CO2 sensor is designed to monitor carbondioxide (CO2) levels in the outside ventilation air andinterface with the ventilation damper in an HVAC system.The OAQ sensor is packaged with an outdoor cover. SeeFig. 48. The outdoor air CO2 sensor must be located in theeconomizer outside air hood.

580J

29

COVER REMOVED SIDE VIEW

C07135

Fig. 48 -- Outdoor Air Quality Sensor Cover

Wiring the Outdoor Air CO2 Sensor: A dedicatedpower supply is required for this sensor. A two--wire cableis required to wire the dedicated power supply for thesensor. The two wires should be connected to the powersupply and terminals 1 and 2.

To connect the sensor to the control, identify the positive(4 to 20 mA) and ground (SIG COM) terminals on theOAQ sensor. See Fig. 46. Connect the 4 to 20 mAterminal to RTU Open J4--5. Connect the SIG COMterminal to RTU Open J4--6. See Fig. 49.

SEN

COM

J4-5

J4-6

OAQ Sensor/RH Sensor

24 VACC08463

Fig. 49 -- RTU Open / Outdoor CO2 Sensor(33ZCSENCO2) Connections

Smoke Detector/Fire Shutdown (FSD) —

On 580J units equipped with factory--installed SmokeDetector(s), the smoke detector controller implements theunit shutdown through its NC contact set connected to theunit’s CTB input. The FSD function is initiated via thesmoke detector’s Alarm NO contact set. The RTU Opencontroller communicates the smoke detector’s trippedstatus to the BAS building control. See Figs. 38 and 39,the RTU Open System Control wiring schematics.

The Fire Shutdown Switch configuration,MENUConfigInputsinput 5, identifies thenormally open status of this input when there is no firealarm.

Space Humidity Sensor or Humidistat —

NOTE: The accessory space relative humidity sensor andhumidistat are not available for single phase (--J voltagecode) models.Perfect Humidityt Control Wiring: In units equippedwith the Perfect Humidity option there are two pink(PNK) wires loose in the control box used to control thedehumidification function of the unit. These pink wiresare meant to be tied to a space humidistat or thermidistaton an electromechanical unit. On RTU Open equippedunits these pink wires must be connected to J11--7 & 8 toallow the Open board to operate the dehumidificationfunction for the unit. Disconnect the J11 Phoenix styleconnector from the board and use the plug screws tosecure the pink wires in pins 7 and 8, reconnect the plugto the board at J11.NOTE: Perfect Humidity is a factory installed optionwhich is available for 07 models only.

Relative Humidity Sensors (Space or Duct Mounted):The accessory space humidity sensor (33ZCSENSRH-01)or duct humidity sensor (33ZCSENDRH-01) is used tomeasure the relative humidity of air within the space orreturn air duct. The RH reading is used to control thePerfect Humidityt option of the rooftop unit. For wiringdistances up to 500 ft (152 m), use a 3--conductor, 18 or20 AWG shielded cable. The shield must be removedfrom the sensor end of the cable and grounded at the unitend. The current loop power for sensor is provided by theRTU Open controller as 24vdc. Refer to the instructionssupplied with the RH sensor for the electricalrequirements and terminal locations. RTU Openconfigurations must be changed after adding an RHsensor. See Fig. 50 and 51 for typical RH sensor wiring.

S J4--1 or J4--4 = 24vdc loop power

S J4--2 or J4--5 = 4--20mA signal input

NOTE: The factory default for dehumidification controlis normally open humidistat.

SW2123456

ON

Io Vin Gnd Vo

MOUNTINGHOLES

WIRINGOPENING

Vin - J4-1 or J4-4 24VdcIo - J4-2 or J4-5 -20mA output

C11087

Fig. 50 -- Space Relative Humidity Sensor Typical Wiring

580J

30

Relative Humidity Sensor(Polarized Male Connector)

J4-1 or J4-4 + 24 VDC Supply Voltage

J4-2 or J4-5 (-) 4 to 20 mA Current Loop Outputto RTU-OPEN

4-20 VAC GND 0-5V mA or or VDC 0-10V

SPAN

ZERO

C10839

Fig. 51 -- Duct Relative Humidity Sensor Typical Wiring

Humidistat: Use of a field--supplied humidistat providesthe RTU Open insight to the relative humidity in thespace. The humidistat reads the RH level in the space andcompares it to its setpoint to operate a dry contact. Thehumidistat is a dedicated input on the configurable input 9and tells the RTU Open when the RH level is HIGH orLOW. The normal condition for humidity is LOW. Anormally open humidistat is the factory default control forthe Perfect Humidityt option.To wire in the field:S J5--8 = 24 VAC source for dry contact

S J5--7 = Signal input

Connecting Discrete Inputs —

Filter Status: The filter status accessory is afield--installed accessory. This accessory detects pluggedfilters. When installing this accessory, the unit must beconfigured for filter status by settingMENUConfigInputsinput 3, 5, 8, or 9 to FilterStatus and normally open (N/O) or normally closed (N/C).Input 8 or 9 is recommended for easy of installation. Referto Fig. 37 and Figs. 38 or 39 for wire terminations at J5.

Fan Status: The fan status accessory is a field--installedaccessory. This accessory detects when the indoor fan isblowing air. When installing this accessory, the unit mustbe configured for fan status by settingMENUConfigInputsinput 3, 5, 8, or 9 to FanStatus and normally open (N/O) or normally closed (N/C).Input 8 or 9 is recommended for easy of installation. Referto Fig. 37 and Figs. 38 or 39 for wire terminations at J5.

Remote Occupancy: The remote occupancy accessory isa field--installed accessory. This accessory overrides theunoccupied mode and puts the unit in occupied mode.When installing this accessory, the unit must beconfigured for remote occupancy by settingMENUConfigInputsinput 3, 5, 8, or 9 to RemoteOccupancy and normally open (N/O) or normally closed(N/C).

Also set MENUSchedulesoccupancy source to DIon/off. Input 8 or 9 is recommended for easy ofinstallation. Refer to Fig. 37 and Table 6 for wireterminations at J5.

Power Exhaust (output): The relay used by the RTUOpen board to control power exhaust is a dry contactwhich means it does not have 24vac. This 24vac must beconnected to the relay to allow it to operate the powerexhaust relay in the PE accessory. A 24vac source must beprovided to J11--2 on the RTU Open control board. Thiscan be provided by the unit’s transformer from varioussources. The “R” terminal on the unit’s low voltageterminal board (LVTB) is a logical source. Refer to Fig.37 and Figs. 38 or 39 for wire terminations at J11.

580J

31

Communication Wiring -- Protocols

General —

Protocols are the communication languages spoken bycontrol devices. The main purpose of a protocol is tocommunicate information in the most efficient methodpossible. Different protocols exist to provide differentkinds of information for different applications. In the BASapplication, many different protocols are used, dependingon manufacturer. Protocols do not change the function ofa controller; just make the front end user different.

The RTU Open can be set to communicate on fourdifferent protocols: BACnet, Modbus, N2, and LonWorks.Switch 3 (SW3) on the board is used to set protocol andbaud rate. Switches 1 and 2 (SW1 and SW2) are used toset the board’s network address. See Fig. 52 and 53 forprotocol switch settings and address switches. The 3rdparty connection to the RTU Open is through plug J19.See Fig. 54 for wiring.NOTE: Power must be cycled after changing the SW1--3switch settings.

Contact your Bryant applications engineer for moredetailed information on protocols, 3rd party wiring, andnetworking.

SW3 Protocol Selection

PROTOCOL DS8 DS7 DS6 DS5 DS4 DS3 DS2 DS1BACnet MS/TP(Master) Unused OFF OFF OFF ON OFF Select Baud Select Baud

Modbus(Slave) Unused OFF OFF ON ON OFF Select Baud Select Baud

N2(Slave) Unused OFF OFF OFF ON ON OFF OFF

LonWorks Unused ON ON OFF ON OFF OFF ON

NOTE:DS = Dip SwitchBACnet MS/TP SW3 example shown

Baud Rate Selections

BAUD RATE DS2 DS19600 OFF OFF

19,200 ON OFF

38,400 OFF ON

76,800 ON ONC07166

Fig. 52 -- RTU Open SW3 Dip Switch Settings

C10815

Fig. 53 -- RTU Open Address Switches

C10816Fig. 54 -- Network Wiring

580J

32

Local Access

Wall Mounted Equipment TouchThe Equipment Touch is a wall mounted interface used toconnect to the RTU Open to access the controlinformation, read sensor values, and maintenance. This isan accessory interface that does not come with the RTUOpen controller. You wire the Equipment Touch to theRTU Open’s J13 local access port. There are 2 passwordprotected levels in the display (User and Admin). See theEquipment Touch Installation and Setup Guide for moreinformation. See Appendix A for navigation and screencontent.

Field AssistantField Assistant is a computer program included with thepurchase of the Tech Tool Kit (USB-TKIT). This is a fieldTech Tool to set-up, service, or download applicationsoftware to the RTU Open controller and includes a USBLink Cable. The link cable connects a USB port to the J12local access port. See Fig. 55.

RTU Open Troubleshooting —

Communication LEDs The LEDs indicate if thecontroller is speaking to the devices on the network. TheLEDs should reflect communication traffic based on thebaud rate set. The higher the baud rate the more solid theLEDs will appear. See Table 7.

Connect tocomputer’sUSB port

Connect tothe Local

Access portUSB Link Kit RTU Open

AccessPort

J12

P1 P1

P5 P5 LOCALACCESS

PORT

GN

D

GN

D

*Thermm

A

*Thermm

A

UI-10UI-11

SW3

on

CO

MM

OP

TIO

N

CR2032

+-

SW1 SW2

MSB LSB

TXRX

+12 DVCRnet-Rnet+GND

RNET

J12

J13

J15J20

C14131

Fig. 55 -- PC Running Field Assistant

580J

33

Table 7 – LEDsThe LEDs on the RTU Open show the status of certain functions

If this LED is on... Status is...Power RTU Open has powerRx RTU Open is receiving data from the network segmentTx RTU Open is transmitting data over the network segmentDO# The digital output is active

The Run and Error LEDs indicate control module and network status

If Run LED shows... And Error LED shows... Status is...2 flashes per second Off Normal

2 flashes per second 2 flashes,alternating with Run LED Five minute auto---restart delay after system error

2 flashes per second 3 flashes,then off Control module has just been formatted

2 flashes per second 4 flashes,then pause

Two or more devices on this network have thesame ARC156 network address

2 flashes per second On Exec halted after frequent system errors orcontrol programs halted

5 flashes per second On Exec start---up aborted, Boot is running5 flashes per second Off Firmware transfer in progress, Boot is running

7 flashes per second 7 flashes per second, alternating withRun LED Ten second recovery period after brownout

14 flashes per second 14 flashes per second,alternating with Run LED Brownout

On On

Failure. Try the following solutions:S Turn RTU Open off, then on.S Format RTU Open.S Download memory to RTU Open.S Replace RTU Open.

NOTE: Refer to the RTU Open Multi--Protocol ControllerControls, Start--Up, Operation and Troubleshooting manualContact your Bryant applications engineer for details onconfiguration and troubleshooting of connected networks.

Outdoor Air Enthalpy Control(PNO 33CSENTHSW)

The enthalpy control (33CSENTHSW) is available as afield--installed accessory to be used with the EconoMi$er2damper system. The outdoor air enthalpy sensor is part ofthe enthalpy control. (The separate field--installedaccessory return air enthalpy sensor (33CSENTSEN) isrequired for differential enthalpy control. See Fig. 56.)

Locate the enthalpy control in the economizer next to theActuator Motor. Locate two GRA leads in the factoryharness and connect the gray lead labeled “ESL” to theterminal labeled “LOW”. See Fig. 56. Connect theenthalpy control power input terminals to economizeractuator power leads RED (connect to 24V) and BLK(connect to GND).

7 CTB ECON(RTU Open: to J2-6)LOW

GND

24V

EnthalpySwitch

GRA

BLK

RED

Factory Wiring Harness

PL6-1 (24-V)

PL6-4 (COM)

C11169

Fig. 56 -- Enthalpy Switch (33CSENTHSW) Connections

The outdoor enthalpy changeover setpoint is set at theenthalpy controller.

Differential Enthalpy Control —

Differential enthalpy control is provided by sensing andcomparing the outside air and return air enthalpyconditions. Install the outdoor air enthalpy control asdescribed above. Add and install a return air enthalpysensor.

Return Air Enthalpy Sensor —

Mount the return--air enthalpy sensor (33CSENTSEN) inthe return--air section of the economizer. The return airsensor is wired to the enthalpy controller(33CSENTHSW). See Fig. 57.

580J

34

GRA

BLK

RED– 4-20 Main

+ VDC Out

– 4-20 Main Out

+ 24-36 VDC In

LOW

GND

24V

7 CTB ECON(RTU Open: to J2-6)

PL6-1 (24-V)

PL6-4 (COM)

Outside AirEnthalpy Switch

Return AirEnthalpySensor

C11170

Fig. 57 -- Outside and Return Air Enthalpy SensorWiring

To wire the return air enthalpy sensor, perform thefollowing:

1. Use a 2--conductor, 18 or 20 AWG, twisted pair cableto connect the return air enthalpy sensor to theenthalpy controller.

2. Connect the field--supplied RED wire to (+) spadeconnector on the return air enthalpy sensor and the (+)terminal on the enthalpy controller. Connect the BLKwire to (--) spade connector on the return air enthalpysensor and the (--) terminal on the enthalpy controller.

Smoke Detectors

Smoke detectors are available as factory--installed options on580J models. Smoke detectors may be specified for SupplyAir only or for Return Air without or with economizer or incombination of Supply Air and Return Air. All componentsnecessary for operation are factory--provided and mounted.The unit is factory--configured for immediate smoke detectorshutdown operation; additional wiring or modifications tounit terminal board may be necessary to complete the unitand smoke detector configuration to meet projectrequirements.

Units equipped with factory--optional Return Air smokedetectors require a relocation of the sensor module at unitinstallation. See Fig. 58 for the as shipped location.

Return Air Smoke Detector(as shipped)

C12282

Fig. 58 -- Return Air Smoke Detector, Shipping Position

Completing Installation of Return Air Smoke Sensor:1. Unscrew the two screws holding the Return Air

Smoke Detector assembly. See Fig. 59, Step 1. Savethe screws.

2. Turn the assembly 90 and then rotate end to end.Make sure that the elbow fitting is pointing down. SeeFig. 59, Step 2.

3. Screw the sensor and detector plate into its operatingposition using screws from Step 1. See Fig. 59, Step 3.

4. Connect the flexible tube on the sampling inlet to thesampling tube on the basepan.

Additional Application Data —

Refer to Catalog No. HKRNKA--1XA for discussions onadditional control features of these smoke detectorsincluding multiple unit coordination.

Step 1 Step 2 Step 3C12283

Fig. 59 -- Completing Installation of Return Air Smoke Sensor

580J

35

Legend and Notes for Table 8LEGEND:BRKR --- Circuit breakerCO --- Convenient outletDISC --- DisconnectFLA --- Full load ampsIFM --- Indoor fan motorLRA --- Locked rotor ampsMCA --- Minimum circuit ampsPE --- Power exhaustPWRD CO --- Powered convenient outletUNPWR CO --- Unpowered convenient outletNOTES:1. In compliance with NEC requirements for multimotor andcombination load equipment (refer to NEC Articles 430 and440), the overcurrent protective device for the unit shall befuse or HACR breaker. Canadian units may be fuse or circuitbreaker.

2. Unbalanced 3-Phase Supply VoltageNever operate a motor where a phase imbalance in supplyvoltage is greater than 2%. Use the following formula to de-termine the percentage of voltage imbalance.

% Voltage Imbalance = 100 xmax voltage deviation from average voltage

average voltage

Example: Supply voltage is 230-3-60

AB = 224 vBC = 231 vAC = 226 v

Average Voltage =(224 + 231 + 226)

=681

3 3

= 227

Determine maximum deviation from average voltage.(AB) 227 – 224 = 3 v(BC) 231 – 227 = 4 v(AC) 227 – 226 = 1 vMaximum deviation is 4 v.Determine percent of voltage imbalance.

% Voltage Imbalance = 100 x4

227

= 1.76%

This amount of phase imbalance is satisfactory as it is below themaximum allowable 2%.IMPORTANT: If the supply voltage phase imbalance is more than2%, contact your local electric utility company immediately.

580J

36

Tabl

e8

–U

nit

Wir

e/F

use

orH

AC

RB

reak

erSi

zing

Dat

a

UNIT

NOM.V---Ph---Hz

IFM

TYPE

NOC.O.orUNPWRC.O.

w/PWRDC.O.

NOP.E.

w/P.E.(pwrdfr/unit)

NOP.E.

w/P.E.(pwrdfr/unit)

MCA

FUSEor

HACR

BRKR

DISC.SIZE

MCA

FUSEor

HACR

BRKR

DISC.SIZE

MCA

FUSEor

HACR

BRKR

DISC.SIZE

MCA

FUSEor

HACR

BRKR

DISC.SIZE

FLA

LRA

FLA

LRA

FLA

LRA

FLA

LRA

580J*04

208/230---1---60

STD

2840

2695

3045

2997

------

------

------

------

MED

2840

2695

3045

2997

------

------

------

------

208/230---3---60

DD---STD

2130

2183

2330

2385

2630

2688

2830

2890

STD

2030

2096

2230

2298

2530

25101

2730

27103

MED

2030

2096

2230

2298

2530

25101

2730

27103

HIGH

22/22

30/30

22/21

134

24/24

30/30

24/24

136

27/26

30/30

27/27

139

29/28

35/35

29/29

141

460---3---60

STD

1115

1149

1215

1250

1315

1351

1420

1452

MED

1115

1149

1215

1250

1315

1351

1420

1452

HIGH

1215

1268

1315

1369

1420

1470

1520

1571

575---3---60

STD

815

846

1015

1048

1015

1048

1215

1250

MED

815

846

1015

1048

1015

1048

1215

1250

HIGH

815

750

1015

1052

1015

952

1115

1254

580J*05

208/230---1---60

STD

3450

32133

3650

35135

------

------

------

------

MED

3450

32133

3650

35135

------

------

------

------

208/230---3---60

DD---STD

2530

2493

2730

2795

3040

3098

3245

32100

STD

2430

23106

2630

26108

2940

29111

3140

31113

MED

2430

23106

2630

26108

2940

29111

3140

31113

HIGH

26/26

30/30

25/25

144

28/28

40/40

28/27

146

31/31

40/40

31/31

149

33/32

45/45

33/33

151

460---3---60

STD

1215

1152

1315

1253

1415

1454

1520

1555

MED

1215

1152

1315

1253

1415

1454

1520

1555

HIGH

1215

1271

1315

1372

1520

1473

1620

1674

575---3---60

STD

915

942

1115

1144

1115

1144

1315

1346

MED

915

942

1115

1144

1115

1144

1315

1346

HIGH

915

946

1115

1148

1115

1048

1315

1350

580J*06

208/230---1---60

STD

4060

37150

4260

40152

------

------

------

------

MED

4260

40175

4460

42177

------

------

------

------

208/230---3---60

DD---STD

2940

28122

3145

31124

3445

34127

3650

36129

STD

2740

26133

2940

28135

3145

31138

3345

33140

MED

28/28

40/40

28/27

171

30/30

45/45

30/30

173

33/33

45/45

33/33

176

35/35

50/50

35/35

178

HIGH

30/30

45/40

29/29

186

32/32

45/45

32/31

188

35/35

45/45

35/35

191

37/36

50/50

37/37

193

460---3---60

STD

1320

1363

1420

1464

1620

1565

1720

1666

MED

1420

1482

1520

1583

1620

1684

1720

1785

HIGH

1520

1590

1620

1691

1720

1792

1825

1893

575---3---60

STD

1115

1048

1315

1250

1215

1250

1420

1452

MED

1015

1052

1215

1254

1215

1254

1415

1456

HIGH

1115

1163

1315

1365

1315

1365

1520

1567

See“LegendandNotesforTable8”onpage35.

48HC

580J

37

Tab

le8

–U

nit

Wir

e/F

use

orH

AC

RB

reak

erSi

zing

Dat

a(c

ont)

UNIT

NOM.V---Ph---Hz

IFM

TYPE

NOC.O.orUNPWRC.O.

w/PWRDC.O.

NOP.E.

w/P.E.(pwrdfr/unit)

NOP.E.

w/P.E.(pwrdfr/unit)

MCA

FUSEor

HACR

BRKR

DISC.SIZE

MCA

FUSEor

HACR

BRKR

DISC.SIZE

MCA

FUSEor

HACR

BRKR

DISC.SIZE

MCA

FUSEor

HACR

BRKR

DISC.SIZE

FLA

LRA

FLA

LRA

FLA

LRA

FLA

LRA

580J*07

Unitsbuilton

orafter

02/09/2015

208/230---3---60

STD

33/33

50/50

32/32

197

35/35

50/50

34/34

199

38/38

50/50

38/37

202

40/40

50/50

40/40

204

MED

35/35

50/50

34/34

212

37/37

50/50

36/36

214

40/40

50/50

39/39

217

42/41

60/60

42/42

219

HIGH

3750

36226

3950

39228

4260

42231

4460

44233

460---3---60

STD

1520

1496

1620

1597

1720

1798

1825

1899

MED

1620

15104

1720

16105

1825

18106

1925

19107

HIGH

1720

16111

1825

18112

1925

19113

2025

20114

575---3---60

STD

1115

1168

1315

1370

1315

1370

1520

1572

MED

1215

1279

1420

1481

1415

1381

1620

1683

HIGH

1215

1279

1420

1481

1415

1381

1620

1683

580J*07

Unitsbuilton

orpriorto

02/08/2015

208/230---3---60

STD

33/32

50/50

32/31

184

35/34

50/50

34/33

186

37/37

50/50

37/37

189

39/39

50/50

39/39

191

MED

34/34

50/50

33/33

199

36/36

50/50

35/35

201

39/39

50/50

39/39

204

41/41

50/50

41/41

206

HIGH

3650

36213

3850

38215

4150

41218

4360

43220

460---3---60

STD

1725

1692

1825

1793

1925

1994

2025

2095

MED

1825

17100

1925

18101

2025

19102

2130

21103

HIGH

1925

18107

2025

19108

2130

21109

2230

22110

575---3---60

STD

1215

1263

1420

1465

1420

1365

1620

1667

MED

1320

1274

1520

1576

1520

1476

1720

1778

HIGH

1320

1274

1520

1576

1520

1476

1720

1778

See“LegendandNotesforTable8”onpage35.

48HC

580J

38

C09302

Fig. 60 -- EconoMi$er IV Wiring

Step 13 — Adjust Factory--Installed Options

Smoke Detectors —

Smoke detector(s) will be connected at the ControlsConnections Board, at terminals marked “SmokeShutdown”. Cut jumper JMP 3 when ready to energizeunit.

EconoMi$er IV Occupancy Switch —

Refer to Fig. 60 for general EconoMi$er IV wiring.External occupancy control is managed through aconnection on the Controls Connections Board.If external occupancy control is desired, connect a timeclock or remotely controlled switch (closed for Occupied,open for Unoccupied sequence) at terminals markedOCCUPANCY. Cut jumper JMP 2 to complete theinstallation.

Step 14 — Install AccessoriesAvailable accessories include:

CurbThru--base connection kit (must be installed before unitis set on curb)LP conversion kit

Manual outside air damperTwo--Position motorized outside air damperEconoMi$er IV (with control)EconoMi$er2 (without control/for external signal)Barometric reliefPower ExhaustDifferential dry--bulb sensor (EconoMi$er IV)Outdoor enthalpy sensorDifferential enthalpy sensorCO2 sensorLouvered hail guardPhase monitor control

Refer to separate installation instructions for informationon installing these accessories.

Pre--Start and Start--Up —

This completes the mechanical installation of the unit.Refer to the unit’s Service Manual for detailed Pre--Startand Start--Up instructions. Download the latest versionsfrom HVAC Partners (www.hvacpartners.com).

Copyright 2015 Bryant Heating & Cooling Systems D 7310 W. Morris St. D Indianapolis, IN 46231 Edition Date: 03/15

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

Catalog No: II580J---4---7---02

Replaces: II580J---4---7---01

580J

39

UNIT START-UP CHECKLIST(Remove and Store in Job File)

MODEL NO.: SERIAL NO.:

I. PRE-START-UP

j VERIFY THAT ALL PACKAGING MATERIALS HAVE BEEN REMOVED FROM UNIT

j VERIFY INSTALLATION OF OUTDOOR AIR HOOD

j VERIFY INSTALLATION OF FLUE EXHAUST AND INLET HOOD

j VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTRUCTIONS

j VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT

j VERIFY GAS PRESSURE TO UNIT GAS VALVE IS WITHIN SPECIFIED RANGE

j CHECK GAS PIPING FOR LEAKS

j CHECK THAT INDOOR--AIR FILTERS ARE CLEAN AND IN PLACE

j CHECK THAT OUTDOOR AIR INLET SCREENS ARE IN PLACE

j VERIFY THAT UNIT IS LEVEL

j CHECK FAN WHEELS AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND VERIFYSETSCREW IS TIGHT

j VERIFY THAT FAN SHEAVES ARE ALIGNED AND BELTS ARE PROPERLY TENSIONED

j VERIFY THAT SCROLL COMPRESSORS ARE ROTATING IN THE CORRRECT DIRECTION

j VERIFY INSTALLATION OF THERMOSTAT

j VERIFY THAT CRAKCASE HEATERS HAVE BENN ENERGIZED FOR AT LEAST 24 HOURS

II. START-UPELECTRICAL

SUPPLY VOLTAGE L1--L2 L2--L3 L3--L1

COMPRESSOR AMPS 1 L1 L2 L3

COMPRESSOR AMPS 2 L1 L2 L3

SUPPLY FAN AMPS L1 L2 L3

TEMPERATURES

OUTDOOR--AIR TEMPERATURE _F DB (DRY BULB)

RETURN--AIR TEMPERATURE _F DB _F WB (WET BULB)

COOLING SUPPLY AIR TEMPERATURE _F

GAS HEAT SUPPLY AIR _F

PRESSURES

GAS INLET PRESSURE IN. WG

GAS MANIFOLD PRESSURE STAGE 1 IN. WG

STAGE 2 IN. WG

REFRIGERANT SUCTION CIRCUIT A PSIG

CIRCUIT B PSIG

REFRIGERANT DISCHARGE CIRCUIT A PSIG

CIRCUIT B PSIG

j VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS

GENERAL

j ECONOMIZER MINIMUM VENT AND CHANGEOVER SETTINGS TO JOB REQUIREMENTS (IF EQUIPPED)

j VERIFY SMOKE DETECTOR UNIT SHUTDOWN BY UTILIZING MAGNET TEST

580J

40

III. PERFECT HUMIDITYt START-UP (580J*07G/J ONLY)STEPS

j 1. CHECK CTB FOR JUMPER 5, 6, 7JUMPER 5, 6, 7 MUST BE CUT AND OPEN

j 2. OPEN HUMIDISTAT CONTACTS

j 3. START UNIT IN COOLING (CLOSE Y1)OBSERVE AND RECORD

A. SUCTION PRESSURE PSIG

B. DISCHARGE PRESSURE PSIG

C. ENTERING AIR TEMPERATURE _F

D. LIQUID LINE TEMPERATUREAT OUTLET OR REHEAT COIL _F

E. CONFRIM CORRECT ROTATION FOR COMPRESSOR

F. CHECK FOR CORRECT RAMP--UP OF OJUTDOOR FAN MOTOR AS CONDENSER COIL WARMS

j 4. CHECK UNIT CHARGE PER CHARGING CHART

j 5. SWITCH UNIT TO HIGH--LATENT MODE (SUBCOOLER) BY CLOSING HUMIDISTAT WITH Y1 CLOSED

OBSERVE

j A. REDUCTION IN SUCTION PRESSURE (5 TO 7 PSI EXPECTED)

j B. DISCHARGE PRESSURE UNCHANGED

j C. LIQUID TEMPERATURE DROPS TO 50 TO 55_F RANGE

j D. LSV SOLENOID ENGERIZED (VALVE CLOSES)

j 6. SWITCH UNIT TO DEHUMID (REHEAT) BY OPENING Y1

OBSERVE

j A. SUCTION PRESSURE INCREASES TO NORMAL COOLING LEVEL

j B. DISCHARGE PRESSURE DECREASES (35 TO 50 PSI)

j C. LIQUID TEMPERATURE RETURNS TO NORMAL COOLNG LEVEL

j D. LSV SOLENOID ENERGIZED (VALVE CLOSES)

j E. DSV SOLENOID ENERGIZED, VALVE OPENS

j 7. WITH UNIT IN DEHUMID MODE CLOSE W1COMPRESSOR AND OUTDOOR FAN STOP; LSV AND DSV SOLENOIDS DE--ENERGIZED

j 8. OPEN W1 RESTORE UNIT TO DEHUMID MODE

j 9. OPEN HUMIDISTAT INPUTCOMPRESSOR AND OUTDOOR FAN STOP; LSV AND DSV SOLENOIDS DE--ENERGIZED

j 10. RESTORE SETPOINTS FOR THERMOSTAT AND HUMIDISTAT

Copyright 2015 Bryant Heating & Cooling Systems D 7310 W. Morris St. D Indianapolis, IN 46231 Edition Date: 03/15

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

Catalog No: II580J---4---7---02

Replaces: II580J---4---7---01

580J

517

Installation Instructions -...

Documents

Transcript of Installation Instructions -...