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Major Section to be Covered
First Encounter with the Units
Six quadrant access ports
Tour Through the Unit Pathways Air Path
Refrigerant Cycle
Solution Cycle
PLC/HMI Introduction Review
HMI: Main Screens
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First Encounter with the Units
Unit Modularity
Available Units
Envelop Outer Dimensions Envelope Overview
Construction Material
Required Clearances
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First Encounter: Unit Modularity
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First Encounter: Envelop Outer
Dimensions
Front View Back View
89
77
74
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First Encounter: Envelope Overview
Front View Back View
Condenser CoilCondenser FanHorizontal Process
Outlet Hatch
Regeneration Inlet
CompartmentElectrical
Compartment
Vertical Process Outlet
Compartment
Regeneration
Mechanical Port
Regeneration
Outlet Hatch
Process Inlet
Compartment
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Construction Material
Construction Materials Exterior:
Oven Cured Paint over 1.5 mm
Galvanized Steel.
Floor and Structural Columns 2mmGalvanized Steel
M6 Bolted Frame
Construction Materials Interior Polypropylene Solution Enclosure
with Polyethylene Insulation mats.
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First Encounter: Required Clearances
40
40
40
60
60
60
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Six quadrant access ports
Main Components Location
Process Inlet Port
Regeneration Inlet Port
Process Outlet Port Regeneration Mechanical Port
Electrical Port
External Condenser Port
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1. Process Inlet Port
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3. Process Outlet Port
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4. Regeneration Mechanical Port
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5. Electrical Port
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6. External Condenser Port
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Tour Through the Unit Pathways
Air Path
Refrigerant Cycle
Solution Cycle
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S-A
R-A
R-A
R-A
R-A
S-A
Supply Air
ExhaustAir
R= Refrigerant
A= Air
S= Solution
Exhaust Air
Return Air/
Outdoor AirOutdoor AirCondenser
Fan Array
Rooftop Schematic View: Air Path
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Air Path Trough the Unit
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Process Vertical Inlets
Return Air
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Air: Process Vertical Outlets
Zone
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Vertical Air Flow Path
Return Air Zone
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Air: Process Horizontal Inlets
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Air: Process Horizontal Outlets
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Air: Horizontal Air Flow Path
Out Door
Zone
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Air: Regeneration Air Path
Out Door
Out Door
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Condenser Air Path
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Air: Unit Modularity Duct Connectivity
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Air: Unit Modularity Duct Connectivity
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Variable Air Flow Capabilities
Fans and Frequency Drives Adaptability to installation requirements
Variability of external static pressure
Wider range of unit CFM operability
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Fan CurvesDTRT 2500 DTRT 5000
DTRT 2500 DTRT 3500 DTRT 5000 DTRT 7000
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S-A
R-A
R-A
S-R S-R
R-A
S-A
Supply Air
R= Refrigerant
A= Air
S= Solution
Exhaust Air
Return Air/
Outdoor Air
Outdoor Air
Rooftop Schematic View: Refrigerant
R-A
ExhaustAir
Condenser
Fan Array
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Refrigerant Cycle: Digital Compressor
Digital Compressor Description
PWM Methodology
Range of operation 60Hz Grid
Variability under changing loads
Tying the compressor modulation to our
advantage
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Refrigerant Cycle: Digital Compressor
15Hp
Emerson-Copland Digital Scroll
R-410a
60Hz, 3 Phase Crack case heater
PWM
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Pulse Width Modulation Topology
Indoor (Zone) Sensor
Type: Column Mounted OR
Supplied Air Sensor
Process Outlet
Duct Mounted
Solid StateRelay
Diagrams taken from: AE4-1395 (August 2012) 3-15 Ton Digital Compressors for AC
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Pulse Width Modulation Topology
Indoor (Zone) Sensor
Type: Column Mounted OR
Supplied Air Sensor
Process Outlet
Duct Mounted
Solid StateRelay
Diagrams taken from: AE4-1395 (August 2012) 3-15 Ton Digital Compressors for AC
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Electronic Expansion Valve
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Refrigerant Cycle: Condenser Coils
20 fins per inch
Improved Heat Rejection Built from Copper tubes and Hydrophobic
coating Aluminum fins
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Refrigerant Cycle: Refrigerant to Air
Heat ExchangerHeat Exchanger Location Regeneration Inlet
(Air Pre-Heat)
Process Inlet
(Air Pre-Cool)
Process Outlet (Air Post-Cool /Re-Heat)
Rows Deep / Coils / Fins per Inch 6 / 13/7 5 / 14 /4 2 / 16 /4
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Filter Dryers
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Solution Cycle
Schematics
Pumps
Protection Sump
Solution Levels Colona and Leak Detection
Anti Crystallization and High LL Prevention
Mechanism
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S-A
R-A
R-A
S-R S-R
Reg.
Sump
Proc.
Sump
R-A
S-A
Supply Air
R= Refrigerant
A= Air
S= Solution
Exhaust Air
Return Air/
Outdoor Air
Outdoor Air
Rooftop Schematic View: Solution Cycle
R-A
ExhaustAir
Condenser
Fan Array
S l i C l P L i
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Solution Cycle: Pump Location
Reminder
Solution Cycle: Pumps Present to
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Solution Cycle: Pumps Present to
Future
Benefits of the shift:
Solution flow away from the air stream Manufactured in chemical resistant thermoplastics (PP) encapsulated magnet, spindle
housing and pump housing.
Magnetic coupling require no seals or lubricants for operation
Provides energy efficient thermal shield, minimizing heat transfer to the pumped fluid.
Leak-free environment for the LiCl media.
Continuous flow of aggressive chemicals and chilled fluids with no obstruction.
Semi Immersed Mechanically
Coupled Centrifugal Pump Magnetic Drive Centrifugal Pump
S l i C l P Pl
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Solution Cycle: Pump Placement
Allocation
S l ti C l M di d M if ld
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Solution Cycle: Media and Manifold
Solution Distribution
Hexagonal Corrugated (45 x 45) Cellulose PaperSheets placement.
Similar Manifold placement for the Process andRegeneration.
Cross flow: Solution to Air HEXHighEvaporation Efficiency and low pressure drop.
S l ti C l M di d M if ld
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Solution Cycle: Media and Manifold
Solution Distribution
Media Ratio differences from DT-Large
Manifold construction similarities to DT-Large Manifold
Silicon Tube
Central connection to even distribution
Process media
volume
Process Top cross
section
Regeneration media
volume
Regen. Top cross
section
DTRT/DTL +20% -4% +5% -30%
S l ti C l S l ti t R f i t
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Solution Cycle: Solution to Refrigerant
Heat Exchangers Location
for illustration purposes onlywww.turbotecproducts.com://httpImages taken from
http://www.turbotecproducts.com/http://www.turbotecproducts.com/http://www.turbotecproducts.com/http://www.turbotecproducts.com/http://www.turbotecproducts.com/http://www.turbotecproducts.com/8/13/2019 Roof Top Unit Presentation Ver 17
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Solution Cycle: Solution-Refrigerant HEX Tube in Tube HEX
Coaxial titanium heat exchanger encapsulated in athermo-plastic tube.
Advantages:
Coaxial inner tubes create turbulent flowheat transferincreases.
Titanium coaxial inner tubing can withstand corrosiveand erosive environments.
Exchanges the Thermo-Plastic material and coppertubes coated by epoxy paint in the DT-Large unit
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Solution Cycle: Leak Free Environment
S l ti C l Vi l I ti f
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Solution Cycle: Visual Inspection of
Solution Level
Leak Detection
Low Liquid Detection
High Liquid Detection
Medium Level Detection
Medium Level Detection
12
6
4
S l ti C l A ti C t lli ti
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Solution Cycle: Anti Crystallization
Prevention Mechanism
S l ti C l Hi h LL P ti M h i
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Solution Cycle: High LL Prevention Mechanism
RegenerationRefrigerant
Supply
FansSystem DischargePressure
High Liquid TemperatureOnAbove Kp SetPoint
High Liquid TemperatureOffBelow Kp SetPoint
Set Point: Pressure
Process Value: Discharge Pressure
Control Value: Fan Relay
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PLC/HMI Introduction Review
Local and PLC Mode
Physical Location of HMI
Controller-Unit Topology
Sequence of Operation
Unit Functionality
Enthalpy Control
BMS Available Connectivity
DI/DO & AI/AO
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PLC/HMI Intro: LocalPLC Mode
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PLC/HMI Intro: Physical Location
Maintenance Engineer Office/
Mechanical RoomSaddle Mount
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PLC/HMI Intro: Controller-Unit Topology
PLC/HMI Intro: Sequence of Operation
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PLC/HMI Intro: Sequence of OperationStage 1
PWMSet Point: Humidity Ratio
Process Value: Supplied Air Humidity Ratio
Control Value: Compressor Modulation
PLC/HMI I t U it F ti lit
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PLC/HMI Intro: Unit Functionality
Compressor Pulse Width Modulation & Post Heat
/ f
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PWM
PLC/HMI Intro: Sequence of OperationStage 2
PLC/HMI Intro: Sequence of Operation
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PWM
PLC/HMI Intro: Sequence of OperationStage 3
Set Point: Temperature
Process Value: Supplied Air Temperature
Control Value: 4 Way Valve Solenoid
PLC/HMI Intro Unit Functionality
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PLC/HMI Intro: Unit Functionality
Compressor Pulse Width Modulation & Post Cool
PLC/HMI I t E th l C t l
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PLC/HMI Intro: Enthalpy Control
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PLC/HMI Intro: BMS Available Connectivity
Modbus RTU (485)
Modbus over TCP/IP
Modbus RTU (485) to BACnet
Modbus over TCP/IP to BACnet
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DI/DO & AI/AO
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DTRT 2500 Sensor PositioningVertical Outlet OA and RA Inlets
Indoor (Zone) Sensor
Type: Column Mounted
Return Air Sensor
Process Inlet
Duct Mounted
Supplied Air Sensor
Process Outlet
Duct Mounted
Outdoor Air
Sensor
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Component Monitoring
Unit Inlet/Outlet (Main Screen)
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Unit Inlet/Outlet (Main Screen)
DTRT 5000 Unit
Unit Inlet/Outlet (Main Screen)
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Unit Inlet/Outlet (Main Screen)
6xDTRT 2500 Units w/ one Controller
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Mode of operation
/
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Auto/Manual Mode
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Set Point Screen
h d l
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Schedule Screen
il d d ff f h i
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Email Transcended off of the Unit
SMS T d d ff f h U i
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SMS Transcended off of the Unit
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RCMS E il d SD C d S i F
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RCMS Email and SD Card String FormatUnit Time Date Id.HR Id.T Od.HR
MI1177 MI230 MI235 MI1178 MI1179 MI1180Excel - Unit # RTC Time RTC Date INDOOR HR INDOOR TEMP OUTDOOR HR
Od.T Out.HR Out.T In.HR In.T Cs.Pr
MI1181 MI1182 MI1183 MI1184 MI1185 MI1186OUTDOORTEMP
PROCESS OUT HR PROCESS OUT TEMP PROCESS IN HR PROCESS IN TEMP SUCTION PRESSURECOMPRESSOR
Cd.Pr DmFA.Fd DmRA.Fd Cs.Tp Cd.Tp DmFA.Ctr
MI1187 MI1188 MI1189 MI1190 MI1191 MI1192DISCHARGE
PRESSURE
COMPRESSOR
FRESH AIR
DAMPER
FEEDBACK
RETURN AIR DAMPER
FEEDBACK
SUCTION
TEMPERATURE
COMPRESSOR
DISCHARGE
TEMPERATURE
COMPRESSOR
FRESH AIR
DAMPER
CONTROL
Dc.Vv% Input Output Fault SP Tmp SP HR
MI1193 MI1194 MI1195 DW20 MI1197 MI1198DIGITAL COMPPRESSOR
DISCHARGE SOLENOID
Input Map Output Map Fault Map Setpoint Temp Set point HR
Q i ?
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Questions ?
Lifti th U it
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Lifting the Unit
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