Vitodens 100 -W Technical Data Manual - Viessmann

VITODENS 100-W

Gas-fired wall-mounted condensing boiler37 to 118 MBH / 10.8 to 34.6 kW

Vitodens 100-W

WB1B Series

Gas-Fired Wall-Mounted Condensing Boilerwith modulating stainless steel MatriX cylinderburner and stainless steel Inox-Radial heat exchangerfor room air independent operation(using a direct vent system) or roomair dependent operation

Technical Data ManualModel Nos. and pricing: see Price List

Vitodens 100-W, WB1B(with preinstalled coaxial vent pipe adaptor)

This trademark is registered with the U.S. Patent and Trademark Office.5369 277 v1.5 01/2010

Product Information

2

VITODENS 100-W

Equipped with a Viessmann stainless steelheat exchanger for lasting performance andreliability and a modulating MatriX cylindergas burner, the Vitodens 100-Wwall-mounted condensing boiler is the perfectcombination of value, quality and Viessmanntechnology.

The benefits at a glance:

HOutstanding efficiency of 94.0 % A.F.U.E.on all models.

HLasting performancewith Viessmann-made SA240 316Tistainless steel Inox-Radial heat exchangerconstructed to ASME Section IV and CSAB51.

HLow-emissionwith fully-modulating stainless steelMatriX cylinder burner. Factory calibrationeliminates adjustments in the field.< 29 ppm NOx (at 3% O2)< 40 ppm CO (at 3% O2)

HControl varietyIntegrated boiler control interfaces withany level of external control - from roomthermostat to outdoor reset and more.

HCompact, lightweight designand zero clearance to combustibles makeit a great choice for limited-spaceinstallations.

HExtremely quiet operation;quieter than most refrigerators.< 50 dBA (at 1 meter / 3.3 ft.)

HEasy installation, service and maintenancewith all pipe connections located at thebottom and serviceable components easilyaccessible from the front.

HMultiple venting options- Horizontal or vertical sealed combustioncoaxial vent system (factory supplied).

- Horizontal, vertical or hybrid sealedcombustion double-pipe vent system(field supplied).

- Horizontal or vertical single-wall ventsystem (field supplied).

HSuitable for high altitude levelsof up to 10,000 ft. / 3,000 m withoutderation.

HBuilt-in automatic frost protectionallows boiler to be shut off for anextended period of time while protecting itagainst freeze-up.

HLimited lifetime warrantyin residential applications.

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Product InformationCross-Section

3

Legend

Stainless steel MatriX cylinder burnerInox-Radial stainless steel heatexchangerBurner blowerGas and hydronic connectionsBoiler control

Standard Equipment:Wall-mount boiler and installation fittingsc/w 30 psi pressure relief valve, pressuregage, gas shut-off valve, two fill/drainvalves, all mounting hardware, outdoortemperature sensor, and LP conversion kit.

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C

D E

B

A

Product may not look exactly as illustrated.

Technical Data

4

Technical DataStandard heating boiler

Boiler Model Model No. WB1B 26 WB1B 35

Natural gas and LPGCSA input

CSA output/DOE*1

heating capacity

MBHkWMBHkW

37-9110.8-26.7

34-839.9-24.3

37-11810.8-34.6

34-1089.9-31.6

Net I=B=R rating*2 MBH 72 94

Heat exchanger surface area ft.2

m210.230.86

10.230.86

Min. gas supply pressureNatural gasLPG

“w.c.“w.c.

410

410

Max. gas supply pressure*3

Natural gas and LPG “w.c. 14 14

A.F.U.E. % 94.0 94.0

Weight lbskg

7834.1

7834.1

Shipping weight lbskg

9543

9543

Boiler water content USGltr

0.873.3

0.873.3

Boiler max. flow rate*4 GPMltr/h

6.21400

6.21400

Max. operating pressureat 210ºF / 99ºC

psigbar

453

453

Boiler water temperature– Adjustable high limit (AHL) range

– space heating (steady state)– DHW production (set-point)

– Fixed high limit (FHL)

ºF / ºCºF / ºC

ºF / ºC

86 to 176 / 30 to 80172 / 78

210 / 99

Boiler connectionsBoiler heating supply and return NPTM (male) “Pressure relief valve NPTF (female) “Drain valve (male thread)

¾¾¾

¾¾¾

DimensionsOverall depth

Overall width

Overall height

inchesmminchesmminchesmm

141/836015¾40028½725

141/836015¾40028½725

*1 Output based on 140ºF / 60ºC, 120 ºF / 49ºC system supply/return temperature.*2 Net I=B=R rating based on piping and pick-up allowance of 1.15.*3 If the gas supply pressure exceeds the maximum gas supply pressure value, a separate gas pressure regulator must be installed upstream of theheating system.

*4See “Maximum Flow Rates” on pages 15 to 17 in this manual.

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Vitodens 100-W

5

Standard heating boiler

Boiler Model Model No. WB1B 26 WB1B 35

Gas supply connection NPTF “ ¾ ¾

Flue gas*5

Temperature (at boiler returntemperature of 86ºF / 30ºC)– at rated full load– at rated partial load

Temperature (at boiler returntemperature of 140ºF / 60ºC)

ºF / ºCºF / ºC

ºF / ºC

127 / 5390 / 32

167 / 75

131 / 5590 / 32

172 / 78

Flue gas valueMass flow rate (of flue gas)

– at rated full load

– at rated partial load

Available draught

lbs/hkg/hlbs/hkg/h

Pambar

79.236.033.015.0

1001.0

100.145.533.015.0

1001.0

Flue gas temperature sensorlimit ºF / ºC 230 / 110 230 / 110

Average condensateflow rate*6

with natural gas– TS/TR =122/86ºF / 50/30 ºC USG/day

ltr/day1.95-2.3

8-92.5-2.8

9.4-10.5

Condensate connection*7 hosenozzle in 1 1

Boiler flue gas connection*8 in/mm 23/8/60 23/8/60

Combustion air supplyconnection*8

outer in/mm 4/100 4/100

Noise level (at 1 meter)– at full load– at partial load

(dB)(dB)

4740

4942

High altitude (factory set)*9

ft. / m 0-5,000 / 0-1,500 0-5,000 / 0-1,500

*5 Measured flue gas temperature with a combustion air temperature of 68°F / 20°C.*6 Based on typical boiler cycles, including partial load conditions.*7 Requires 1” / 25 mm tubing. See Vitodens 100-W Installation Instructions for details.*8 For an overview of venting options refer to the appendix starting on page 19. For detailed information refer to the Vitodens Venting

System Installation Instructions.*9 For 5,000 to 10,000 ft / 1,500 to 3,048 m operation, a coding address change is required. Refer to the Installation and Service

Instructions for details." For information regarding other Viessmann System Technology componentry, please reference documentation of respective product.

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Vitodens 100-W

6

Vitodens 100-W, WB1B 26/35without piping connections

Connections Vitodens 100-W,WB1B 26, 35

LegendConnections

Condensate drain, plastic hoseØ 1” / 25mmBoiler water supply, NPT ¾” (malethread)Gas connection, NPT ¾” (male thread)Boiler water return, NPT ¾” (malethread)

E Combustion air opening for double pipesystem

F Combustion air opening for co-axialsystem

Dimensionsa See fig. 2 for dimensionsb 15¾” / 400 mmc 25/8” / 68 mmd 28½” / 725 mme 47/8” / 123 mmf 61/8” / 156 mmg 141/8” / 360 mmh 5” / 125 mmj 97/8” / 250 mmk 11/4” / 31 mmm 77/8” / 200 mmn 31/8” / 80 m

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ab

ee

f

g

h

B

A

DC

n n

m

E F E

jc

d

k

Fig. 1 Front view Top viewSide view

Vitodens 100-W

7

Vitodens 100-W, WB1B 26/35with piping connections

Piping connections for Vitodens100-W, WB1B 26 and 35(factory supplied)

Legend

BWR Boiler water return, ¾”BWS Boiler water supply, ¾”BD Boiler drainBF Boiler fillGC Gas connection, ¾” NPTM

(male thread)PRV Pressure relief valvePG Pressure gageVC Venting connectionCAI Combustion air inlet connection

(optional)

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14” /355mm

15¾” /400mm

27/8” / 73mm12”/300mm

2 5/8”/68 mm

6” /152mm 47/8” /

123mm

47/8” /123mm

VCCAI CAI

PG

Fig. 2

28½”/725mm

32½”/826mm

PRV

BD

GC BF

BWS

BWRFig. 3

Vitodens 100-W/Technical Data

8

Recommended Minimum Service Clearances Minimum Clearances to Combustibles

Top Front Rear Left Right Vent pipe*1

0 0 AL,CL

0 0 0 0

AL = AlcoveCL = Closet*1Refer to the Installation Instructions of theVitodens Venting System for details.

Note:The Vitodens 100-W boiler has passed thezero inches vent clearance to combustiblestesting requirements provided by the boilerHarmonized Standard ANSI Z21.13. CSA4.9.2005 and therefore is listed for zeroclearance to combustibles when ventedwith a single wall special venting system(AL-29-4C material) or UL/ULC-listed CPVCgas vent material. The zero inches ventclearance to combustibles for the Vitodens100-W boiler supercedes the clearance tocombustibles listing that appears on thespecial venting system label.

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Front

12”/305 mm

Top12”/305 mm

0”/mm

28”/700 mm

Side

0”/mm

Back

SideFig. 4

12”/300 mm*1

4”/100mm 28”/

700 mm

¼”/5 mm ¼”/5 mm¼”/5 mm

Fig. 5

Technical Data/Heating Circuit Pumps

9

Waterside Flow (boiler circuit)

The Vitodens 100-W is designed only for closed loop, forcedcirculation hot water heating systems.

Pressure drop (primary circuit) of Vitodens 100-W

Use standard friction loss method for pipe sizing.Observe boiler maximum and minimum flow rate limitations. If system flow rate exceedsboiler maximum flow rate (as stated on page 13) or if system flow rate is unknown, Viessmann stronglyrecommends the installation of a low-loss header. See page 13 for low-loss header information.

Heating Circuit Pumps

Recommended heating pumps with Vitodens 100-W, WB1B 26, 35:

HGrundfos 15-58 (3-speed)H Taco 00Ror equivalent

Refer to the graph above for the properwaterside boiler friction loss calculations.

Pump selection must be based on accuratesystem flow and pressure drop calculations(incl. DHW sizing).

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0 500 1000 1500

0

1

2

3

4

5

6

0

3.3

6.6

9.8

13.1

16.4

19.7

ft.

2000 ltr. / hr.

7

8

23

26

Flow rate (USGPM)

Sup

plyhe

adpres

sure

(ft.

water)

0 2.2 4.4 6.6 8.8 GPM

m

A low-loss header must be used when the system flowrate exceeds the maximum or falls below the minimumflow rate of the Vitodens 100-W boiler. An alternativemethod may be used, such as primary secondary pipingusing closely spaced tees. A low-loss header offersadditional benefits not provided by a pair of closelyspaced tees. Viessmann strongly recommends andprefers the use of a low-loss header over closely spacedtees.

Please see page 13 for details.

IMPORTANT

DHW Production/Wall Mounting

10

Domestic Hot Water Production via DHW Storage Tank

Vitodens 100-W boilers can be used inconjunction with the stand-alone DHWstorage tanks offered by Viessmann (aseparate DHW controller should be fieldsupplied). All Viessmann DHW storagetanks sold in North America are available in“Vitosilver” finish only.

Size and select the DHW storage tank basedon the forecast DHW consumption of thebuilding in question.

For further technical information on DHWstorage tanks, see the Vitocell-V TechnicalData Manuals.

Wall Mounting Information

The Vitodens 100-W (model WB1B 26 and35) comes with a template, which allowsyou to easily mark the location of the screwsfor the mounting bracket and the location ofthe flue gas pipe on the wall (Viessmanncoaxial PPS vent system only).

The connection to the heating circuits mustbe made on site (installation fittings aresupplied in the Installation Fittings packagesupplied with the boiler).

LegendMounting template

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Fig. 6

Condensate Connection/Neutralization Unit

11

Condensate Connection

Install the condensate drain pipe (Ø 7/8” /22mm) with a suitable gradient (min. 2.5%).Discharge condensate from the boiler intothe drainage system, either directly or (ifrequired) via a neutralization unit(accessory).

Condensate connection for Vitodens 100-WHmodel WB1B 26, 35

The condensate drain of the Vitodes 100-Wboiler is equipped with a built-in siphon trapin order to keep flue gases from beingdischarged via the condensate drain.

Discharge tubing

Pipe ventilation must take place betweenthe siphon trap and the neutralization unit (ifapplicable).

Condensate Drainage and Condensate Neutralization

The condensate formed both in thecondensing boiler and in the flue gas pipemust be discharged into the public sewagesystem in accordance with all applicablelocal regulations. The condensate producedby a gas-fired heating system has a pHvalue between 3 and 4.

Some local codes may require the use of aseparate neutralization unit to treat theaggressive and corrosive condensate.With a neutralization unit installed, allcondensate from the boiler and the flue gaspipe enters into the neutralization unitwhere it is treated and released into thepublic sewage system with a safe pH valueof above 6.5.

The use of neutralization granulate(performing the neutralizing process) isdependent on the operation of the heatingsystem. To determine the required refillamount, check granulate level several timesduring the first year of operation. In somecases one granulate fill may last an entireyear.

Contact Viessmann to order a neutralizationunit for the Vitodens 100-W boiler.See Viessmann Price List for orderinformation.

The condensate discharge outlet to thedrainage system connection must be clearlyvisible. It must be installed with a suitablegradient and provided with a stench trap.

If the condensate outlet of theVitodens 100-W boiler is lower than thedrain, a condensate pump must be used.

Only corrosion-resistant materials may beused for condensate drainage purposes (e.g.braided hose). Do not use galvanizedmaterials or materials containing copper forpiping, couplings etc. The condensate drainmust have a trap to prevent flue gasleakage.

Please note that other requirements mayapply depending on local regulations and/orproject-specific details.

It is advisable to contact your localwaterworks office (authority responsible forwaste water regulations) well beforecommencing with the installation of theneutralization unit in order to establishdetails of local regulations that apply.

The following table shows the concentrationof (effluent) substances (e.g. heavy metals)contained in the waste water from theVitodens 100-W condensing boiler.

Condensate(effluent)

Values measuredin mg/ltr

substances Vitodens 100

LeadCadmiumChromiumCopperNickelZincTin

< 0.01< 0.005< 0.01< 0.01< 0.01< 0.05< 0.05

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Fig. 7

IMPORTANT

Venting Options / Electrical Connection

12

Vitodens 100-W Venting Options

For an overview of venting options refer to the appendix starting on page 19. For detailedinformation refer to the Vitodens Venting System Installation Instructions.

Electrical Connection

All electrical connections are made to theboiler’s integrated power pump module (120VAC/60 Hz). Use disconnect means andpower service switch as per local coderequirements.

Control Unit

Function and constructionThe control is integrated into the Vitodens100-W boiler.H Integrated diagnostic systemH For room temperature-dependentoperation, an external control or a roomtemperature thermostat may be connected

H To control DHW temperature, a separateDHW controller may be connected

H External heat demandH 0-10 V (field wiring)HViessmann outdoor temperature sensor(field wiring)

HOpen Therm (field wiring)

The control unit consists of:H LCD DisplayHSelector dial for boiler water temperatureadjustment

HSelector dial for service settingH Temperature adjustable high limitH Boiler temperature sensorH Burner fault displayH Burner fault resetH Pressure gageH Fuse

Boiler temperature sensorThe boiler temperature sensor is connectedto the control unit and built into the boiler.

Frost protectionFrost protection is continuously active. Theburner is switched ON when the boilerwater temperature reaches 41°F / 5°C andis switched OFF again when the boiler watertemperature reaches at least 59 °F / 15°C(but not more than 68°F / 20°C).

For details on the control, pleaserefer to the Vitodens 100-WOperating Instructions.

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Vitodens 100-W Accessories

13

Accessories for the Vitodens 100-W

Neutralization Unit for Single-BoilerApplicationswith neutralizing granulate

for Vitodens 100-W, WB1B 26, 35Part No. 7134 231

Low-Loss Header

–Type 80/50Part No. 7134 791(max. flow rate 17.6 GPM / 4 m3/h)–Type 120/80Part No. 7134 792(max. flow rate 35.2 GPM / 8 m3/h)

A low-loss header offers additional benefitsnot provided by a pair of closely spacedtees. Viessmann strongly recommends andprefers the use of a low-loss header overclosely spaced tees. When used inconjunction with the Vitodens 100-W boiler,the low-loss header acts as hydraulic break,decoupling boiler and system circuits fromeach other (no sensor required). It isrecommended to use the low-loss header inapplications in which the total system flowrate exceeds the maximum or falls belowthe minimum flow rate of the Vitodens100-W boiler. For maximum boiler flowrates, see the table on page 9 in thismanual.Viessmann strongly recommends the use ofa low-loss header in cases where thesystem head and flow rates are unknown.

In addition, the low-loss header helpseliminate air and debris [D] from the heatingsystem. See illustrations below for theprinciple of operation.

Product does not look exactly as illustrated.

The low-loss header is available in thefollowing sizes. Select the size based on themaximum system flow rate of yourapplication.

Model No. Max. system flow rate

Type 80/50 17.6 GPM / 4 m3/h

Type 120/80 35.2 GPM / 8 m3/h

LegendAB Air BleedBR Boiler ReturnBS Boiler SupplyBY Bypass (with laminar flow)D Debris and/or airDV Drain ValveSR System ReturnSS System SupplyTS Viessmann Temperature Sensor (not

used)SW Sensor Well

T1 Boiler supply temperatureT2 Boiler return temperatureT3 System supply temperatureT4 System return temperatureVprimary Boiler circuit flow rateVsecondary Heating circuit flow rateVbypass Bypass flow rateQprimary Heat supplied by boilerQsecondary Heat consumed by system

Vprimary < VsecondaryT1 > T3T2 = T4Qprimary = Qsecondary

T1 ± 176°F / 80°CVsecondary=Vprimary+Vbypass

When installing a low-loss header, systemmixed supply temperature (T3) must becalculated as follows:

T3=T1× Vprimary+T4 Vbypass

Vsecondary

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310 mm DN 40145mm

Fig. 8

Fig. 9

DV

BS

SS

SR

BR

TS

BY

AB

D

SW

Low-loss header design

T1

T2

Vprimary Vsecondary

T3

T4

T4Vbypass

Principle of Operation

IMPORTANT

Standard Equipment/How the Vitodens 100-W Operates.../Installation Examples

14

Standard Equipment

The Vitodens 100-W gas-fired condensingboiler with Inox-Radial heat exchangersurfaces, modulating stainless steel MatriXcylinder gas burnerc/wH installation fittings with 30 psigpressure relief valve, air vent andpressure gauge

H two fill/drain valvesH all mounting hardware

The boiler comes fully piped and prewired.

Venting material (coaxial) is to besupplied by Viessmann only. Side wallvent installations must include Viessmannprotective screen!

Wall mounting componentryThe following wall mounting componentsare supplied with the Vitodens 100-Wboiler:HMounting bracketHMounting boltsH Installation fittingsH Screws for mounting bracket on– wood studs (2” x 4”)– metal studs– brick/concrete wall

How the Vitodens 100-W boileroperates...

The Vitodens 100-W boiler uses a premixcombustion system, which is designed todeliver a certain air-gas mixture to theburner for complete combustion. The gasis injected upstream of the blower. Theburner and heat exchanger are part of aforced-draft design.The benefits offorced-draft systems are lowercomponent temperatures, direct air-fuelconnection (premix) for improved mixing,and longer service life of the boiler due tomild to moderate ambient conditions.The MatriX cylinder burner, blower andthe combination gas valve are factorycalibrated and pre-adjusted. A pneumaticlink between combustion air and gasflows guarantees optimal boilerperformance at all firing rates. Blowerspeed is automatically increased ordecreased based on heat demand,thereby regulating the amount ofcombustion air drawn. The pneumatic linkbetween air and gas introduces therequired amount of gas for optimalcombustion to meet the current heatdemand, based on a linear relationshipbetween P air and P gas.

Installation Examples

The examples on the following pagesdepict possible piping layouts of theVitodens 100-W boiler.

Please note that the following examplesare simplified conceptual drawings only!Piping and necessary componentry mustbe field verified. A low water cut-off(LWCO) must be installed where requiredby local codes. Proper installation andfunctionality in the field is theresponsibility of the heating contractor.

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IMPORTANT


15

System Layout 1Vitodens 100-W, WB1B 10-26, 10-35 with one heating circuit

System Layout 1 - Alternate Option

Legend

AV Air ventPRV Pressure relief valve

Vitodens 100-WRoom thermostatHeating circuitHeating circuit pump (fieldsupplied)Expansion tankPressure Activated By-Pass

Please note:Heating circuit C in the examples shouldbe designed to 30ºF to 40ºF / 16.7ºC to22.2ºC. For lesser delta T design, systemlayout designer must use one of theexamples (3 or 4) on the following pages.

Ensure that a pressure activatedby-pass is installed if there are systemcomponent(s) in C that may isolatethe flow to the pump D.

Please note!The use of a low-loss header isrecommended if the water flow rate isless than 1.7 GPM / 400 ltr/h or morethan 6.2 GPM / 1400 ltr/h.The low-loss header is available asaccessory part.

Maximum Flow Rates

Model WB1B 10-26 10-35

t

Output Btu/h 83,000 108,00030 ºF rise (GPM) 5.5 ----35 ºF rise (GPM) 4.7 6.240 ºF rise (GPM) 4.2 5.4

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PRV

AV

*

Fig. 10

F

T-T

PRV

AV

*

Fig. 11

F

T-T

IMPORTANT


16

System Layout 2Vitodens 100-W, WB1B 10-26, 10-35 with...

– DHW storage tank– low-loss header– one heating circuit

Primary pump must pump intothe boiler (as illustrated).

AV Air ventPRVPressure relief valveTPVTemperature and pressure reliefvalve

Vitodens 100-W gas-firedcondensing boilerExternal boiler/DHW controller (fieldsupplied)Heating circuitHeating circuit pump (field supplied)DHW storage tankDHW tank temperature aquastat orsensorDHW circulating pump (fieldsupplied)Low-loss headerExpansion tankPrimary pump (boiler circuit, fieldsupplied) with low-loss header only

Please note!The use of a low-loss header isrecommended if the water flow rate isless than 1.7 GPM / 400 ltr/h or morethan 6.2 GPM / 1400 ltr/h.The low-loss header is available asaccessory part.

Maximum Flow Rates

Model WB1B 10-26 10-35

t

Output Btu/h 83,000 108,00030ºF rise (GPM) 5.5 ----35ºF rise (GPM) 4.7 6.240ºF rise (GPM) 4.2 5.4

DHW supply and return piping between boiler DHW connections and the Viessmann DHW tank connections, shall be a minimum of1” nominal pipe diameter (irrespective of the ¾” DHW connection outlet sizes provided on the boiler and the DHW tank). Thisensures that the head of the pump is fully utilized to overcome the resistance of the DHW heat exchanger coil and to providesufficient water flow to the boiler heat exchanger. In non-Viessmann DHW tank applications, perform, in addition to the above,accurate calculations for DHW tank coil pressure drop versus boiler pump head to ensure sufficient water flow to the boiler heatexchanger. Failure to heed the above instructions may cause boiler short-cycling and inadequate DHW supply.

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AV

PRV

TPV

Y

Y

Fig. 12

IMPORTANT

IMPORTANT


17

System Layout 3Vitodens 100-W, WB1B 10-26, 10-35 with DHW storage tank and one heating circuit

Primary pump must pump intothe boiler (as illustrated).

AV Air ventPRVPressure relief valveTPVTemperature and pressure reliefvalve

Vitodens 100-W gas-firedcondensing boilerExternal boiler/DHW controller (fieldsupplied)Heating circuitHeating circuit pump (field supplied)DHW storage tankDHW tank temperature aquastat orsensorDHW circulating pump (fieldsupplied)Closely spaced tees, 4xpipe Øor 12” / 305mm*

Expansion tankPrimary pump (boiler circuit, fieldsupplied) with low-loss header only

*A low-loss header offers additionalbenefits not provided by a pair ofclosely spaced tees. Viessmann stronglyrecommends and prefers the use of alow-loss header over closely spaced tees.

Please see page 13 for details.

Please note!The use of a low-loss header isrecommended if the water flow rate isless than 1.7 GPM / 400 ltr/h or morethan 6.2 GPM / 1400 ltr/h.The low-loss header is available as anaccessory part.

Maximum Flow Rates

Model WB1B 10-26 10-35

t

Output Btu/h 83,000 108,00030 ºF rise (GPM) 5.5 ----35 ºF rise (GPM) 4.7 6.240 ºF rise (GPM) 4.2 5.4

DHW supply and return piping between boiler DHW connections and the Viessmann DHW tank connections, shall be a minimum of1” nominal pipe diameter (irrespective of the ¾” DHW connection outlet sizes provided on the boiler and the DHW tank). Thisensures that the head of the pump is fully utilized to overcome the resistance of the DHW heat exchanger coil and to providesufficient water flow to the boiler heat exchanger. In non-Viessmann DHW tank applications, perform, in addition to the above,accurate calculations for DHW tank coil pressure drop versus boiler pump head to ensure sufficient water flow to the boiler heatexchanger. Failure to heed the above instructions may cause boiler short-cycling and inadequate DHW supply.

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AV

PRV

TPV

Y

Y

4xpipe Øor 12” / 305mm

Fig. 13

IMPORTANT

IMPORTANT

18

System Design Considerations

IN THE COMMONWEALTH OF MASSACHUSETTS...-this product shall be installed by a licensed plumber or gas fitter.-the flexible connector (if used) may not exceed 36”.-any level type shutoff used must be of tee handle type.

Boiler location

As a direct vent appliance, theVitodens 100-W may be installed for roomair independent operation (sealedcombustion) regardless of size and ventilationmethod of the room in which it is located.The Vitodens 100-W may be installed, forexample, in the main living area of a house,in non-ventilated utility rooms, cupboards,closets and alcoves with no clearancerequired from combustible materials, as wellas in attics with a direct outlet for the fluegas/fresh air system. Follow all local andnational codes.

Flue gas system

Viessmann coaxial PPS (Polypropylene -flame retardent) concentric flue gas/fresh airsystems and two-pipe stainless steel/CPVCsystems for room air independent operation(sealed combustion) and side wall ventingare tested to ANSI Z21.13 - CSA 4.9 -2007 standards and are certified togetherwith the Vitodens 100-W boiler as aconstructional unit. The Vitodens 100-Wboiler may also be vented vertically orhorizontally, using a metallic AL29-4C®special stainless steel, or non-metallic CPVCsingle-wall, room air dependent ventingsystem (UL/ULC listed for category IV).For a more detailed description of the directvent and single-wall vent system, pleaserefer to the Vitodens Venting SystemInstallation Instructions.

Flue gas temperature protection

Viessmann coaxial PPS (Polypropylene -flame retardent) flue pipes used for theVitodens 100-W are rated for max. flue gastemperatures of up to 248 °F/120 °C.Flue gas temperature protection is alsoincluded although the maximum permissibleflue gas temperature will not be exceeded inany operating condition or in the event ofmalfunctioning.

Low water cut-offA low water cut-off may be required bylocal codes. If the boiler is installed abovethe radiation level, a low water cut-offdevice of approved type must be installed inall instances. An approved low water cut-offdevice that meets government and localregulations must be provided by the heatingcontractor. Do not install an isolation valvebetween the boiler and the low watercut-off. The Vitodens 100-W boiler has abuilt-in flow switch, which may be acceptedby local codes in lieu of a low water cut-off.

System layout

H The max. boiler water temperature for ...–space heating is 180°F / 82°C.–DHW production is 172°F / 78°C.

To minimize distribution losses,Viessmann recommends that the heatingand domestic hot water systems be basedon a maximum boiler supply temperatureof 158 °F/70 °C.

H Due to the low return temperaturesrequired for gas condensing, avoid the useof mixing valves in the heating circuitwhenever possible. If mixing valves arerequired, e.g. for multi-circuit systems orunderfloor heating systems, only 3-waymixing valves may be used.Do not use 4-way mixing valves in asystem with condensing boilers.

Water connections

Vitodens 100-W boilers can be used in anyfully pumped hot water heating system.Minimum system pressure is 0.8 bar/12 psig.

Chemical corrosion protection productsCorrosion does not typically occur in sealedheating systems which have been correctlyinstalled and are correctly operated.Many manufacturers of plastic pipesrecommend the use of chemical additives.In this case, only commercially availablecorrosion protection products that havebeen approved for boilers with domestic hotwater heating via single-wall heatexchangers (instantaneous plate heatexchangers or DHW tanks) may be used.

Underfloor heating systems

For underfloor heating systems Viessmannrecommends the use of plastic tubing withan oxygen diffusion barrier in order toprevent the diffusion of oxygen throughtubing. If plastic tubing without an oxygendiffusion barrier is used in underfloorheating systems, Viessmann recommendsthat such systems be separated from theboiler with a heat exchanger.

Oxygen diffusion barrierunderfloor tubing

The boiler warranty does not cover leaksresulting from corrosion caused by the useof underfloor plastic tubing without anoxygen diffusion barrier. Such systems musthave the non-oxygen diffusion barrier tubingseparated from the boiler with a heatexchanger. Viessmann recommends the useof underfloor plastic tubing with an oxygendiffusion barrier.

Water quality

Treatment for boiler feed water should beconsidered in areas of known problems,such as where a high mineral content andhardness exist. In areas where freezingmight occur, an antifreeze may be added tothe system water to protect the system.Please adhere to the specifications given bythe antifreeze manufacturer. Do not useautomotive silicate based antifreeze. Pleaseobserve that an antifreeze/water mixturemay require a backflow preventer within theautomatic water feed and influencecomponents such as diaphragm expansiontanks, radiation, etc. Maximum antifreezecontent is 50% for the Vitodens 100-Wboiler. Do not use antifreeze other thanspecifically made for hot water heatingsystems. The system may also containcomponents which might be negativelyaffected by antifreeze. Check total systemfrequently when filled with antifreeze.Advise system operator/ultimate owner thatsystem is filled with a glycol mix.The heating contractor must provide aMSDS (Material Safety Data Sheet) for theantifreeze used to the systemoperator/ultimate owner.

Warranty

Our warranty does not cover damagesresulting from the following:– installation or service by unqualified andunlicensed personnel.

– attempting to perform any repair work onthe boiler other than that mentioned in theboiler literature.

– tampering with or attempting to readjustthe factory settings of the combinationgas valve

– leaks resulting from corrosion caused bythe use of underfloor plastic tubingwithout an oxygen diffusion barrier.

For detailed warranty information, pleaseread warranty sheet supplied with product.

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Appendix

19

Vitodens 100-W Venting Alternatives

Venting Alternatives Vent System Diameter

Viessmann Coaxial PPs Vent 1 Stainless Steel Vent 2 CPVC Vent 3 Type

Max. Equivalent Length (EqL) 60/100 80/125 100/150 3” 4” 2” 3” 4” Diameter

Horizontally Vented EqL 82 / 25 98 / 30 118 / 36 164 / 50 200 / 61 86 / 26 164 / 50 200 / 61 ft. / m

Vertically Vented EqL 82 / 25 98 / 30 118 / 36 164 / 50 200 / 61 86 / 26 164 / 50 200 / 61 ft. / m

See Page(s) 20-21 22-23 24-25 Page

Horizontal Intake /Vertically Vented EqL — — — 164 / 50 200 / 61 — 164 / 50 200 / 61 ft. / m

See Page(s) 26 26 Page

Select vent material based on vent configuration, preferred material, and necessarymaximum equivalent length.Always follow Viessmann venting installation instructions.- Do not common vent Vitodens 100-W with any other appliance.- Layouts on the following pages are for illustrative purposes only.- Do not use Price List for installation purposes. This is not a design tool.

1 Sealed combustion, coaxial vent material to be supplied by Viessmann only.2 Stainless steel vent material must be ULC/UL listed, stainless steel AL29-4C® for Category IV boilers.Suggested sources: Flexmaster Canada Ltd. / Z-Flex (US) Inc., Heat-fab, ProTech Systems Inc., or Security Chimneys Int’l.

3 CPVC vent material must be ULC/UL listed, for Category IV boilers. Suggested source: IPEX Inc." Boiler standard working pressure: 30 psig; maximum: 45 psig. For 45 psig, order optional PRV 9549 944." Do not include first 90° elbow in equivalent vent length calculations (this applies to all vent materials).

Standard Equipment:Wall-mount boiler and installation fittings c/w 30 psigpressure relief valve, pressure gage, gas shut-offvalve, two fill/drain valves, all mounting hardware,outdoor temperature sensor, and LP conversion kit.

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Appendix

20

Coaxial PPs Vent System

Vent System 1 Vent System Diametery

60/100 80/125 100/150 Diameter

Horizontally Vented Maximum EquivalentLength (EqL)

82 / 25 98 / 30 118 / 36 ft. / m

Room AirIndependent Operation

Basic Horizontal Vent KitVenting pieces can be orderedindividually, or as a convenientkit using the Order No. to theright; Basic Vent Kit includesone of each of the items num-bered 2 to 5, and twoMounting Clips 6.

7424 119 — — Order No.

1 Boiler Vent Pipe Adaptor60/100

included with boiler

B

A

A

Adaptor, coaxial60/100 to 80/125(not shown)


—

—

7424 112

—

—

7424 113

Order No.

Order No.

2 90° ElbowEqL=1.6ft. / 0.5m

7424 094 7424 095 7424 096 Order No.

A

3 Straight Pipe 2

3.3ft. / 1m7424 091 7424 092 7424 093 Order No.

Combustion Air Intake

Flue Gas OutletBA 4 Vent Termination

2.6ft. / 0.8m7424 100 7424 101 7424 102 Order No.

B

5 Protective Screen 1 7134 237 Order No.

6 Mounting Clip 2 (each) 7424 109 7424 110 7424 111 Order No.

Other Available Vent Piecesnot shown in illustration above

Sliding Coupling1.25ft. / 0.4m

7424 106 7424 107 7424 108 Order No.

Straight Pipe 2

1.6ft. / 0.5m7424 088 7424 089 7424 090 Order No.

45° Elbow (Set of 2)EqL=1.0ft. / 0.3m

7424 097 7424098 7424 099 Order No.

1 PPs coaxial vent material must be ULC S-636 certified for Category IV boilers. Do not mix non-ULC S-636 with ULC S-636 venting.Side wall venting installation must include Viessmann Protective Screen!

2 Order 1 Mounting Clip for each straight length of vent pipe installed." Do not include first 90° elbow in equivalent vent length calculations (this applies to all vent materials)." A maximum of 5 elbows may be installed in the vent system; do not exceed maximum equivalent vent length." Always follow Viessmann venting installation instructions 5368 815.

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Appendix

21

Coaxial PPs Vent System (continued)


60/100 80/125 100/150 Diameter

Vertically Vented Maximum EquivalentLength (EqL)

82 / 25 98 / 30 118 / 36 ft. / m

Room AirIndependent Operation BB

1 Boiler Vent Pipe Adaptor60/100

included with boiler

AA Adaptor, coaxial60/100 to 80/125(not shown)


—

—

7424 112

—

—

7424 113

Order No.

Order No.

2 90° ElbowEqL=1.6ft. / 0.5m

7424 094 7424 095 7424 096 Order No.

6 Mounting Clip 2 (each) 7424 109 7424 110 7424 111 Order No.

8 Sliding Coupling1.25ft. / 0.4m

7424 106 7424 107 7424 108 Order No.

9 Straight Pipe 2

1.6ft. / 0.5m

Straight Pipe 2

3.3ft. / 1m

7424 088

or7424 091

7424 089

or7424 092

7424 090

or7424 093

Order No.

Order No.

45° Elbow (Set of 2)EqL=1ft. / 0.3m

7424 097 7424 098 7424 099 Order No.


Flue Gas OutletBA

Vent Termination3.9ft. / 1.2m

7424 103 7424 104 7424 105 Order No.

Roof Flashingand Storm Collar(B-Vent material or better)

fieldsupplied

1 PPs coaxial vent material must be ULC S-636 certified for Category IV boilers. Do not mix non-ULC S-636 with ULC S-636 venting.2 Order 1 Mounting Clip for each straight length of vent pipe installed." Do not include first 90° elbow in equivalent vent length calculations (this applies to all vent materials)." A maximum of 5 elbows may be installed in the vent system; do not exceed maximum equivalent vent length." Always follow Viessmann venting installation instructions 5368 815.

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Appendix

22

Stainless Steel Vent System


3” 4” Diameter

Horizontally Vented Maximum EquivalentLength (EqL)

a + b ≦ 164 / 50 200 / 61 ft. / m


1 Boiler Vent Adaptor included with boiler

b

Independent Operation2 Adaptor, for stainless steel

60/100 to 80/125(outer shell removed)

7424 112 Order No.

a

A

B3 Adaptor(s), stainless steel

80mm to 3”

3” to 4”(not shown)

fieldsupplied

—

fieldsupplied

andfield

suppliedA

4 Venting Support 2 field supplied

5 ULC/UL listed Stainless Steel VentMaterial 1 for EqL calculations, use:H 45° Elbow EqL=2ft. / 0.6mH 90° Elbow EqL=3ft. / 0.9m

field supplied

A

6 Adaptor(s), CPVC60mm to 2”

7134 769 Order No.


Fl G O tl tBA 7 2” to 3” or 2” to 4” field supplied

Flue Gas OutletB8 Combustion Air Intake Vent Material

Allowable materials: see note below 3field supplied

9 Bird Screen c/w Terminationfor stainless steel

field supplied

Room AirDependent Operation


b

B

2 Adaptor, for stainless steel60/100 to 80/125(outer shell removed)

7424 112 Order No.

AA B 3 Adaptor(s), stainless steel80mm to 3”


fieldsupplied

—

fieldsupplied

andfield

supplied



Flue Gas OutletBA

C


field supplied

a = zero

Flue Gas Outlet

Air Opening

BC 9 Bird Screen c/w Termination

for stainless steelfield supplied

1 Stainless steel vent material must be ULC/UL listed, stainless steel AL29-4C® for Category IV boilers.Suggested sources: Flexmaster Canada Ltd. / Z-Flex (US) Inc., Heat-fab, ProTech Systems Inc., or Security Chimneys Int’l.

2 Boiler cannot support weight of vent system. Support venting as prescribed in vent manufacturer’s installation instructions.3 Combustion air supply pipe may be made of the following materials: ABS, CPVC, PVC, or stainless steel." Do not include first 90° elbow in equivalent vent length calculations (this applies to all vent materials)." A maximum of 5 x 90° elbows may be installed in the air intake and flue outlet combined; do not exceed maximum equivalent vent length." Always follow Viessmann venting installation instructions 5368 815.

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Appendix

23

Stainless Steel Vent System (continued)


3” 4” Diameter

Vertically Vented Maximum EquivalentLength (EqL)

a + b ≦ 164 / 50 200 / 61 ft. / m

ARoom AirIndependent Operation B 1 Boiler Vent Adaptor included with boilerAIndependent Operation B


7424 112 Order No.

b

3 Adaptor(s), stainless steel80mm to 3”


fieldsupplied

—

fieldsupplied

andfield

supplied

4 Venting Support 2 field supplieda


field supplied


7134 769 Order No.

7 2” to 3” or 2” to 4” field supplied

Combustion Air IntakeA8 Combustion Air Intake Vent Material 3 field supplied


Flue Gas OutletBA

9 Bird Screen c/w Termination field supplied

Room AirDependent Operation B 1 Boiler Vent Adaptor included with boiler


7424 112 Order No.

AA

b3 Adaptor(s), stainless steel

80mm to 3”


fieldsupplied

—

fieldsupplied

andfield

supplied


Combustion Air IntakeA

C


field supplied


Flue Gas Outlet

Air Opening a = zero

BA

C

9 Bird Screen c/w Terminationfor stainless steel

field supplied

1 Stainless steel vent material must be ULC/UL listed, stainless steel AL29-4C® for Category IV boilers.Suggested sources: Flexmaster Canada Ltd. / Z-Flex (US) Inc., Heat-fab, ProTech Systems Inc., or Security Chimneys Int’l.

2 Boiler cannot support weight of vent system. Support venting as prescribed in vent manufacturer’s installation instructions.3 Combustion air supply pipe may be made of the following materials: ABS, CPVC, PVC, or stainless steel." Do not include first 90° elbow in equivalent vent length calculations (this applies to all vent materials)." A maximum of 5 x 90° elbows may be installed in the air intake and flue outlet combined; do not exceed maximum equivalent vent length." Always follow Viessmann venting installation instructions 5368 815.

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I M P O R T A N T :Do not use any DWV plumbingpipes to vent this boiler.

Appendix

24

CPVC Vent System


2” 3” 4” Diameter

Horizontally Vented Maximum Equivalent a + b ≦Length (EqL)

86 / 26 164 / 50 200 / 61 ft. / m



b

Independent Operation2 Adaptor(s), CPVC

60mm to 2”7134 769 Order No.

a

B

3 Adaptor(s), CPVC2” to 3”


—

—

fieldsupplied

—

fieldsupplied

andfield

supplieda

A 4 Venting Support 2 field supplied

5 ULC/UL listed CPVC Vent Material 1for EqL calculations, use:H 45° Elbow EqL=3ft. / 0.9mH 90° Elbow EqL=5ft. / 1.5m

field supplied


7134 769 Order No.

Combustion Air IntakeA 7 2” to 3” or 2” to 4” field suppliedCombustion Air Intake

Flue Gas OutletBA

8 Combustion Air Intake Vent MaterialAllowable materials: see note below 3

field supplied

9 Bird Screen (Set of 2)for CPVC

7134 780 7134 781 7134 782 Order No.

b



b

AA B


7134 769 Order No.

AA B3 Adaptor(s), CPVC

2” to 3”


—

—

fieldsupplied

—

fieldsupplied

andfield

supplied


CCombustion Air Intake

BA


field supplied

a = zero

Flue Gas Outlet

Air Opening

BC


7134 780 7134 781 7134 782 Order No.

1 CPVC vent material must be ULC/UL listed, for Category IV boilers. Suggested source: IPEX Inc.2 Boiler cannot support weight of vent system. Support venting as prescribed in vent manufacturer’s installation instructions.3 Combustion air supply pipe may be made of the following materials: ABS, CPVC, PVC, or stainless steel." Do not include first 90° elbow in equivalent vent length calculations (this applies to all vent materials)." A maximum of 5 x 90° elbows may be installed in the air intake and flue outlet combined; do not exceed maximum equivalent vent length." Always follow Viessmann venting installation instructions 5368 815.

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Appendix

25

CPVC Vent System (continued)



Vertically Vented Maximum Equivalent a + b ≦Length (EqL)

86 / 26 164 / 50 200 / 61 ft. / m

ARoom AirIndependent Operation B 1 Boiler Vent Adaptor included with boilerAIndependent Operation B


7134 769 Order No.

b

3 Adaptor(s), CPVC2” to 3”


—

—

fieldsupplied

—

fieldsupplied

andfield

supplied


a5 ULC/UL listed CPVC Vent Material 1

for EqL calculations, use:H 45° Elbow EqL=3ft. / 0.9mH 90° Elbow EqL=5ft. / 1.5m

field supplied


7134 769 Order No.


A


field supplied


Flue Gas OutletBA


7134 780 7134 781 7134 782 Order No.


B 1 Boiler Vent Adaptor included with boiler


7134 769 Order No.

AA

b3 Adaptor(s), CPVC

2” to 3”


—

—

fieldsupplied

—

fieldsupplied

andfield

supplied


Combustion Air IntakeA

C


field supplied


Flue Gas Outlet

Air Opening

BA

C a = zero


7134 780 7134 781 7134 782 Order No.

1 CPVC vent material must be ULC/UL listed, for Category IV boilers. Suggested source: IPEX Inc.2 Boiler cannot support weight of vent system. Support venting as prescribed in vent manufacturer’s installation instructions.3 Combustion air supply pipe may be made of the following materials: ABS, CPVC, PVC, or stainless steel." Do not include first 90° elbow in equivalent vent length calculations (this applies to all vent materials)." A maximum of 5 x 90° elbows may be installed in the air intake and flue outlet combined; do not exceed maximum equivalent vent length." Always follow Viessmann venting installation instructions 5368 815.

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Appendix

26

CPVC or Stainless Steel Vent System



Hybrid Vent SystemHorizontal Intake / Vertically Vented

Maximum Equivalent a + b ≦Length (EqL)

86 / 26 164 / 50 200 / 61 ft. / m


1 Boiler Vent Adaptor included with boilerIndependent Operation

B2 Adaptor, for stainless steel

60/100 to 80/125(outer shell removed)

— 7424 112 Order No.


7134 769 Order No.

3 Adaptor(s), stainless steel80mm to 3”


—

—

fieldsupplied

—

fieldsupplied

andfield

supplied

b3 Adaptor(s), CPVC

2” to 3”


—

—

fieldsupplied

—

fieldsupplied

andfield

supplied


a

A5 ULC/UL listed

Stainless Steel Vent Material 1afor EqL calculations, use:H 45° Elbow EqL=2ft. / 0.6mH 90° Elbow EqL=3ft. / 0.9m

or

field supplied


Flue Gas OutletBA

5 ULC/UL listedCPVC Vent Material 1bfor EqL calculations, use:H 45° Elbow EqL=3ft. / 0.9mH 90° Elbow EqL=5ft. / 1.5m

field supplied


7134 769 Order No.



field supplied

9 Bird Screen c/wTermination

for stainless steelor

field supplied


7134 780 7134 781 7134 782 Order No.

1aStainless steel vent material must be ULC/UL listed, stainless steel AL29-4C® for Category IV boilers.Suggested sources: Flexmaster Canada Ltd. / Z-Flex (US) Inc., Heat-fab, ProTech Systems Inc., or Security Chimneys Int’l.

1bCPVC vent material must be ULC/UL listed, for Category IV boilers. Suggested source: IPEX Inc.2 Boiler cannot support weight of vent system. Support venting as prescribed in vent manufacturer’s installation instructions.3 Combustion air supply pipe may be made of the following materials: ABS, CPVC, PVC, or stainless steel." Do not include first 90° elbow in equivalent vent length calculations (this applies to all vent materials)." A maximum of 5 x 90° elbows may be installed in the air intake and flue outlet combined; do not exceed maximum equivalent vent length." Always follow Viessmann venting installation instructions 5368 815.

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Viessmann Manufacturing Company Inc.750 McMurray RoadWaterloo, Ontario N2V 2G5 Canada1-800-387-7373 Fax (519) 885-0887www.viessmann.ca [email protected]

Viessmann Manufacturing Company (U.S.) Inc.45 Access RoadWarwick, Rhode Island 02886 USA1-800-288-0667 Fax (401) 732-0590www.viessmann-us.com [email protected]

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Vitodens 100 -W Technical Data Manual - Viessmann

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