Technical Data Manualgreenwoodlands.org/images/Viessmann_Vitodens-200-TDM.pdf · 2011-06-09 ·...
Transcript of Technical Data Manualgreenwoodlands.org/images/Viessmann_Vitodens-200-TDM.pdf · 2011-06-09 ·...
Vitodens 200, WB2-24C/24/32 Vitodens 200, WB2-44/60(with preinstalled vent pipe adaptor)
VITODENS 200Gas-fired wall-mounted condensing boiler
25 to 230 MBH/7 to 67 kWMulti-boiler installation 344 to 920 MBH/
Vitodens 200
WB2 Series
Gas-Fired Wall-Mounted Condensing Boilerwith modulating MatriX-compact gas burnerfor room air independent operation(using a direct vent system and room airdependent operation)
For Natural Gas and Liquid PropaneHeating input NG 25 to 230 MBH
7 to 67 kWHeating input LP 25 to 214 MBH
7 to 63 kW
Technical Data ManualModel Nos. and pricing: see Price List
5167 472 v3.2 11/2006
Product Information
2
VITODENS 200
The Vitodens 200 is a high-qualitycondensing boiler made of stainless steel,developed in accordance with the latestachievements of the condensing boilertechnology industry. In terms of energyusage, for example, the Vitodens 200 isuncompromising: Thanks to the innovativecondensing technology of the boiler withmodulating MatriX-compact gas burner andthe especially developed Inox-Radial heatexchanger surface, made of stainless steel,the Vitodens 200 reaches an A.F.U.E. of upto 95.2%.
The benefits at a glance:
HHighest efficiency with full modulationup to 98%A.F.U.E.: up to 95.2%.
HMaximum reliabilityHigh-alloy stainless steel (SA240 316Ti)Inox-Radial heat exchanger constructed incompliance with CSA B51 and ASMESection IV.Maximum pressure rating: 45 psig.
HProtect the environmentExtemely low emissions with modulatingMatriX-compact gas burner.NOx: 8.9 ppm (air-free)CO: 5.5 ppm (air-free)
HCompact, lightweight design.Zero clearance to combustibles. Limitedspace is not an issue.
HClean, esthetically pleasing appearance forinstallation anywhere in your living area.
HExtremely quiet operation; quieter thanmost refrigerators.
HSmart burner technologyFactory calibrated, self-adjusting burner.No adjusting in the field, reducedoperating cost.
HPowerful and user-friendly outdoor resetcontrol, built-in and prewired withdiagnostic system.Controls multi-temperature space heatingand DHW systems.
HReliable DHW production two ways:- Combi model features an integratedDHW Quick System. No DHW tankrequired.
- Unlimited DHW supply with astand-alone DHW tank with any otherVitodens 200.
HThree different venting options:- Horizontal or vertical sealed combustionvent system (factory suplied)
- Vertical single-wall vent systm (fieldsupplied)
HMulti-boiler installationModels WB2-44 and -60 can be combinedto a maximum of 4 boilers. Ideal for lightcommercial applications.
HOne version for all elevation levels(0 to 10 000 ft. / 0 to 3048 m).
HFast, simple conversions to natural orpropane gas.
Vitodens 200 –Models WB2 11-44 and 15-60
172 MBH to 230 MBH/50 kW to 67 kW
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Product InformationCross-Section
Vitodens 200, WB2 6-24C(25-91 MBH/7-27 kW) shown.
Product may not be exactly as illustrated.
3
Fully modulating MatriX-compactgas burner – for extremely lowemission levels
Inox-Radial heat exchangersurfaces made of stainlesssteel – for increasedoperational reliability,a long service life and highheating output with minimumspace requirements
Integrated, weather-responsive,variable speed KM-BUS pump
Instantaneous DHW stainlesssteel plate heat exchanger(WB2 Combi Series)
Gas and water pipeconnections
Weather-responsive, digitalboiler control withmenu-drivenprogramming unit
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Vitodens 200
4
Technical DataCombi Series Standard heating boiler
Boiler Model Model No. WB2 6-24C WB2 6-24 WB2 8-32 WB2 11-44 WB2 15-60
Natural gasCSA input
CSA output/DOE*1
heating capacity
MBHkWMBHkW
25-917-27
22-816-24
25-917-27
22-816-24
37-12411-36
33-11210-32
55-17216-50
49-15414-44
80-23023-67
71-20621-60
Net I=B=R rating*2 MBH 70 70 97 133 178
Propane gasCSA input
CSA output/DOE*1
heating capacity
MBHkWMBHkW
25-817-24
22-736-21
25-817-24
22-736-21
37-11211-33
33-10110-30
55-15516-45
49-13914-40
80-21423-63
71-19221-56
Net I=B=R rating*2 MBH 63 63 88 120 166
Heat exchanger surface area ft.2
m28.220.76
8.220.76
9.910.92
20.911.94
20.911.94
Min. gas supply pressureNatural gasPropane gas
“w.c.“w.c.
411
411
411
411
711
Max. gas supply pressure*3
Natural gasPropane gas
“w.c.“w.c.
1414
1414
1414
1414
1414
A.F.U.E. % 95.2 95.2 95.2 95.2 95.2
Weight lbskg
15972
14365
16575
21497
21497
Boiler water content USGltr
1.14.0
1.14.0
1.24.6
4.316.45
4.316.45
Integrated pump flow rateat 6.6 ft./2 m head pressure*4
GPMltr/h
4.61050
4.61050
4.61050
––––
––––
Boiler max. flow rate*5 GPMltr/h
6.21400
6.21400
7.01600
15.43500
15.43500
Max. operating pressureat 210 ºF/99 ºC
psigbar
453
453
453
453
453
Boiler water temperature– Adjustable high limit (AHL)range
space heating(steady state)DHW production
– Fixed high limit (FHL)
ºF/ºCºF/ºCºF/ºC
68 to 167/20 to 75
108 to 172/42 to 78210/99
Boiler connectionsBoiler heating supply and return NPTM “Pressure relief valve NPTF “Drain valve (male
thread)
Boiler supply/return forindirect-fired DHW storage tank NPTM ”
¾¾¾
––
¾¾¾
¾
¾¾¾
¾
1¼¾¾
1¼
1¼¾¾
1¼*1Output based on 140ºF / 60ºC, 120 ºF / 49ºC system supply/return temperature.*2Net I=B=R rating based on piping and pick-up allowance of 1.15.*3If the gas supply pressure exceeds the maximum gas supply pressure value, a separate gas pressure regulator must be installed upstream of theheating system.
*4With pump rotational speed set to 100% flow capacity (2700 rpm), see Coding Address 045 in the Vitodens 200 Start-up/Service Instructions.Pump factory default setting is 65% flow capacity (2000 rpm).
*5See “Typical System Flow Rates” on page 8 in this manual.
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Vitodens 200
5
Combi Series Standard heating boiler
Boiler Model Model No. WB2 6-24C WB2 6-24 WB2 8-32 WB2 11-44 WB2 15-60
DimensionsOverall depth
Overall width
Overall height
Height with flue gas elbow(accessory)
inchesmminchesmminchesmminchesmm
1640619¾50035½90044
1116
1640619¾50035½90044
1116
1640619¾50035½90044
1116
21½55023½60035½90047¼1200
21½55023½60035½90047¼1200
Gas supply connection NPTF “ ½ ½ ½ ¾ ¾
Standby instantaneous DHWplate heat exchangerof Combi boiler*6
Water content DHW sideInhalt heating water
side
USG/ltrUSG/ltr
0.26/1.000.18/0.70
––––
––––
––––
––––
Connections DHW and DCW NPTF “ ½ –– –– –– ––
Max. operating pressure(DHW side)*7
DHW supply temp. rangeContinuous draw ratewith a temperature increasefrom 50 to 113 ºF/10 to 45 ºCDraw rate range
psig/bar
ºF/ºCGPHltr/h
GPMltr/min
150/10
100-135/38-57156590
0.8-2.13-8
––
––––––
––––
––
––––––
––––
––––
––––
––––
––––
––––
––––
Flue gas*8
Temperature (at boiler returntemperature of 86 ºF/30 ºC)– at rated full load– at rated partial load
Temperature (at boiler returntemperature of 140 ºF/60 ºC)
ºF/ºCºF/ºC
ºF/ºC
113/4595/35
158/70
113/4595/35
158/70
113/4595/35
158/70
95/3591/33
149/65
104/4095/35
158/70
Average condensateflow rate*9
with natural gas and– TS/TR =167/140ºF/75/60 ºC
– TS/TR =104/86ºF/40/30 ºC
USG/dayltr/dayUSG/dayltr/day
2-2.68-10
2.9-3.411-13
2-2.68-10
2.9-3.411-13
2.6-310-124-4.515-17
2.9-411-153.7-514-19
4.8-5.818-226-7.423-28
Condensate connection*10 hosenozzle∅ in 1 1 1 1 1
Boiler flue gas connection*11 ∅in/mm 3¼/80 3¼/80 3¼/80 4¼/110 4¼/110
Combustion air supplyconnection*11
outer∅ in/mm 5/125 5/125 5/125 6/150 6/150
*6 Minimum pressure for domestic cold water connection 1 bar/15 psig.*7 See DHW sizing chart on page 11 in this manual.*8 Measured flue gas temperature with a combustion air temperature of 68 °F/20 °C.*9 Based on typical boiler cycles, including partial load conditions.*10 Requires 1”/25 mm tubing. See Vitodens 200 Installation Instructions for details.*11 For side wall vent installations:
Do not exceed max. equivalent length of 20 ft./6 m as stated in the Installation Instructions of the Vitodens 200 Venting System.A maximum of five elbows may be installed in the vent system.Do not attempt to common-vent Vitodens 200 with any other appliance.Venting material to be supplied by Viessmann only; side wall vent installation must include Viessmann protective screen!For details refer to the venting section starting on page 17 or the Installation Instructions for the Vitodens 200 Venting System.
"For information regarding other Viessmann System Technology componentry, please reference documentation of respective product.
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Vitodens 200
78”/1975mm
(from
floo
rleve
l,reco
mmen
ded)
GC BR
DR/DCW
15”/380 mm
BS
10”/250 mm
FFL
5”/125 mm
38”/965mm
BD37”/938mm
16”/406 mm(Depth)
(Heigh
t)
DS/DHW
PRVAV
6¼”/158 mm
4¾“/120 mm
73/8“/187 mm
12¼”/314 mm
9¾”/250 mm
19¾”/500 mm (Width)
6
Vitodens 200 up to model WB2 8-32
LegendAV Air VentBD Boiler DrainBR Boiler ReturnBS Boiler SupplyFFL Finished Floor LevelGC Gas ConnectionPRV Pressure Relief Valve
Only for Combi heating boilerDCW Domestic Cold Water ½”DHW Domestic Hot Water ½”
Only for standard heating boilerDR Boiler heating return for domestic hot
water production ¾”DS Boiler heating supply for domestic hot
water production ¾”
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Vitodens 200/Technical Data
78”/1975mm
(from
floo
rleve
l,reco
mmen
ded)
3”/75 mm
12”/300 mm
FFL
(
AV
2”/50 mm
53”/1346mm
8½”/215 mm
21¼”/
(Heigh
t)
73/8“/187 mm
11¾”/300 mm
16¼”/413 mm
20¾”/525 mm23½”/600 mm (Width)
Ø 6”/150 mm
AV9“/229mm
6½
“/165mm
550 mm
BRBD
DS
BS GC
DR
PRV
7
Vitodens 200 model WB2 11-44 and up
LegendAV Air VentBD Boiler drainBR Boiler ReturnBS Boiler SupplyDR Boiler heating return for domestic
hot water production 1¼”DS Boiler heating supply for domestic
hot water production 1¼”FFL Finished Floor LevelGC Gas ConnectionPRV Pressure Relief Valve
Recommended Minimum Service Clearances Minimum Clearances to Combustibles
Top Front Rear Left Right Vent pipe*1
0 0 AL, CL 0 0 0 0AL = AlcoveCL = Closet*1Refer to the Installation Instructions of the Vitodens 200Venting System for details.
Note:The Vitodens boiler has passed the zeroinches vent clearance to combustiblestesting requirements dictated by theHarmonized Standard ANSI Z21.13. CSA4.9.2000 and therefore is listed for zeroclearance to combustibles when ventedwith a single wall special venting system(AL-29-4C material). The zero inches ventclearance to combustibles for the Vitodensboiler 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
Side
Technical Data
Pressure drop up to model WB2 8-32Pressure drop model WB2 11-44 and up0
1
2
3
4
5
6
7
8
0
3.3
6.6
9.8
13.1
16.4
19.7
23
26
Sup
plyhe
adpres
sure
ft.
m
0 2.2 4.4 6.6 8.8 11 13.2
Flow rate
15.41.10 500 1000 1500 2000 2500 3000 3500250 ltr/h
GPM
8
Waterside Flow (primary circuit)
The Vitodens 200 is designed only for closed loop, forced circulationhot water heating systems.
Pressure drop (primary circuit) of Vitodens 200
Typical System Flow Rates
Model WB2 6-24C* 6-24 8-32 11-44 15-60
∆ t for NG
Output (NG) Btu/h 81 000 81 000 112 000 154 000 206 00020 ºF rise (GPM) 8.1 8.1 11.2 15.3 20.525 ºF rise (GPM) 6.5 6.5 9.0 12.2 16.430 ºF rise (GPM) 5.4 5.4 7.5 10.2 13.735 ºF rise (GPM) 4.6 4.6 6.4 8.7 11.740 ºF rise (GPM) 4.1 4.1 5.6 7.6 10.2
∆ t for LP
Output (LG) Btu/h 73 000 73 000 101 000 139 000 192 00020 ºF rise (GPM) 7.3 7.3 10.1 13.8 19.125 ºF rise (GPM) 5.8 5.8 8.1 11.0 15.330 ºF rise (GPM) 4.9 4.9 6.7 9.2 12.735 ºF rise (GPM) 4.2 4.2 5.8 7.9 10.940 ºF rise (GPM) 3.7 3.7 5.1 6.9 9.6
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 4) or if system flow rate is unknown, Viessmann stronglyrecommends the installation of a low-loss header. See page 34 for low-loss header information.
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A low-loss header must be used when the system flowrate exceeds the maximum (or minimum) flow rate of theVitodens 200 boiler. Once the low-loss header isconnected, the built-in low-loss header logic of theVitodens 200 boiler ensures the required ∆ t across thesystem through the sensory communication between thelow-loss header and the boiler.
*Please note that the low-loss header cannot be usedwith the Vitodens 200, WB2 6-24C Combi boiler.
Please see page 35 for details.
Heating Circuit Pumps
With pump rotational speed set to 100% flow capacity (2700 rpm);see Coding Address 045 in the Vitodens 200Start-up/Service Instructions.Pump factory default setting is 65% flow capacity (2000 rpm).
6
5
4
3
2
1
0
19.7
16.4
13.1
9.8
6.6
3.3
0 mft.
Hea
dpres
sure
0.88 1.32 1.76 2.2 2.64 3.08 3.52 3.96 4.4 4.84 5.28 5.72 6.16 6.6 7.04
Flow rate200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 ltr/h
GPM
9
Heating Circuit Pumps
Built-in variable speed heating circuit pumpfor Vitodens 200 up to model WB2 8-32
Pump rotational speed is transmitted via aninternal data BUS to the pump and adjustedby the control unit based on the outdoortemperature and the activation periods fornormal and reduced heating.
In the factory default setting, the maximumpump rotational speed is preset to2000 rpm (coding address ”045”) and theminimum pump speed to 1100 rpm (codingaddress ”044”).
Pump Model Grundfos VIUPE-60 BUS
Rated voltageRated current
CapacitorPowerconsumption
VACA max.A min.μFW max.W min.
2300.450.212.510050
Vitodens 200 up to model WB2 8-32 (residual head pressure of built-in variable speed pump)
Field supplied system heating circuit pumpsfor Vitodens 200 (all models)
Viessmann offers a variety of prewiredGrundfos system heating circuit pumps (see“Heating circuit pump (field supplied)” in theInstallation Examples on pages 39 to 48)which meet typical Vitodens systeminstallation requirements.See Price List for order information.
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Heating Circuit Pumps/DHW Production
Pump selection must be based on accuratesystem flow and pressure drop calculations(incl. DHW sizing). Viessmann offers a varietyof prewired Grundfos circulating pumps whichmeet typical Vitodens system installationrequirements.See Price List for order information.
The following prewired standard Grundfospumps are available for operation with theVitodens 200, WB2-44/60 boilers:
HModel UP 26-99 FHModel UP 43-75 FHModel UP 26-96 FHModel UP 26-64 F
Please reference correspondingperformance curves (1-4) in the chart tothe left.
IMPORTANT
Performance chart courtesy of Grundfos.
10
Heating Circuit Pumps (continued)
Recommended pumps for operation with Vitodens 200 model WB2 11-44 and up(heating circuit pump, boiler pump and DHW pump field supplied)
DHW Production Planning
With integrated stainless steel plate heatexchanger for instantaneous DHW heating(model WB2 6-24C only) or with DHWconnections for DHW production via astand-alone DHW storage tank, the Vitodens200 boiler series offers the right solution forevery need.
Various factors must be taken into accountwhen designing the DHW system, andwhen deciding between the Combi heatingboiler with integrated DHW production andthe standard heating boiler with DHWproduction via a stand-alone DHW storagetank.
Such factors are:H DHW requirement, level of comfort andconvenience
H Number of draw pointsH Distance of draw points from theboiler/DHW storage tank
H System retrofitH Space requirements
Options
Gas-fired Combiboiler withinstantaneous DHWproduction
Gas-fired standardheating boiler withstand-alone DHWstorage tank
DHW requirement, level of DHW requirement for an apartment + +q ,comfort and convenience DHW requirement for a single-family house 0 +
Central DHW requirement for a multi-family house – +
Decentralized DHW requirement for a multi-family house + +
Number of draw points One draw point + 0p
Several draw points, non-simultaneous use + 0
Several draw points, simultaneous use – +
Distance of draw points from Up to 23 ft./7 m (without DHW recirculation line) + –pthe boiler/DHW storage tank With DHW recirculation line – +
System retrofit DHW storage tank already installed – +
Replacement of existing Combi boiler + –
Space requirements Minimal space available (installation in alcove) + 0
Adequate space available (boiler room) + +
+= recommended 0 = recommended in certain cases – = not recommended
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DHW Production
35
40
45
50
55
60
65
6 7 8 9 10 11 12 13 14
Draw rate at tap (mixed water)
DHW
output
tempe
rature
95
104
113
122
131
140
149
1.6 1.8 2.1 2.4 2.6 2.9 3.1 3.4 3.7
ºF ºC
ltr/min
GPM
11
Domestic Hot Water Production viaInstantaneous DHW Plate Heat Exchanger (Model WB2 6-24C)
The Vitodens 200 Combi boiler is equippedwith an electronically controlledinstantaneous DHW plate heat exchanger.
The comfort control function ensures thatthe instantaneous DHW plate heatexchanger is kept consistently at therequired temperature (115ºF / 46ºC - off,108ºF / 42ºC - on).
This translates into immediate availability ofdomestic hot water at any requiredtemperature level.
Technical Data DHW Plate Heat ExchangerSee page 5 in this manual for technical data.
The diagram on the left illustrates how theDHW output temperature changes in relationto the draw rate at the tap.The DHW draw rate is restricted by means ofa flow limiter to 2.1 GPM/8 ltrs per min. ata temperature of 128 ºF/53 ºC.
If more water is required, domestic cold wateris added, resulting in a lower DHW outputtemperature.In the example to the left, demonstrating thechange in DHW output temperature based onthe addition of domestic cold water, adomestic cold water input temperature of50 °F/10°C is assumed.
DHW output temperature at theVitodens 200 boilerDHW/DCW mixing zoneDHW output temperature at the mixingvalveRestriction by flow limiter
Vitodens 200, WB2 6-24C combi boilerscannot be connected to non-combi boilers inthe field. Proper DHW sizing, includingfuture DHW requirements, must beperformed before selecting combi boilers.
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IMPORTANT
DHW Production
12
Domestic Hot Water Production via DHW Storage Tank
Vitodens 200 boilers can be used inconjunction with the stand-alone DHWstorage tanks offered by Viessmann.All Viessmann DHW storage tanks sold inNorth America are available in “Vitosilver”finish only.
Size and select the DHW storage tank basedon the forecasted DHW consumption of thebuilding in question.
For further technical information on DHWstorage tanks, see the Vitocell-V TechnicalData Manuals.
DHW Storage Tank Connection DHW Storage Tank Connectionfor Vitodens models up to WB2 8-32 for Vitodens model WB2 11-44 and upWith installation fittings and built-in circulating pump With installation fittings and external circulating pumpfor DHW production (via 3-way solenoid valve). for DHW production (optional equipment).
For the connection of the stand-alone DHW tank For the connection of the stand-alone DHW tanka DHW Production Kit is required. a DHW Production Kit is required.See Viessmann Price List for order information. See Viessmann Price List for order information.
LegendDR Boiler heating return for domestic
hot water productionDS Boiler heating supply for domestic
hot water productionHR Heating ReturnHS Heating Supply
An adequately sized precharged expansiontank must be used. See InstallationExamples for details.
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DS
DR
HS
HR
DR
HR
HSDS
IMPORTANT
DHW Recirculation
13
DHW Recirculation
DHW recirculation lines increase the level ofcomfort and convenience of the domestichot water supply and reduce waterconsumption.These advantages directly derive from theimmediate availability of domestic hot waterat all draw points.
Poor insulation of the DHW recirculationline, however, can result in considerableheat loss.
Viessmann therefore recommends thateffective insulation be provided and used forDHW recirculation lines of 23 ft./7 m inlength or longer.
In addition to a recirculation pump and aflow check valve, the DHW recirculation lineshould incorporate a programmed timer toswitch off the recirculation pump overnight.
LegendDCW Domestic Cold WaterDHW Domestic Hot WaterTPV Temperature and Pressure Relief
ValveR DHW Recirculation LineRP DHW Recirculation Pump
DHW Recirculation with Gas-Fired Combi Series
Due to the low water content of the plateheat exchanger, it is not advisable toconnect a DHW recirculation line to theVitodens Combi boiler.
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Vitocell-V stand-alone DHW storage tank
DCWDCW
DHW
RRP
Wall Mounting
14
Wall Mounting Information (up to model WB2 8-32)
Required accessories for installation withoutDHW storage tank
Mounting bracketc/w mounting bolts and fittings
Additional requirements when connecting aDHW storage tank
DHW Production Kit for DHW storage tankconnection
Illustration: Wall-mounting and connection of the Vitodens 200 Combi boiler (model WB2 6-24C)
LegendBD Boiler Drain ¾”BR Boiler Return ¾”BS Boiler Supply ¾”FFL Finished Floor LevelGC Gas Connection ½”
(gas shutoff valve is field supplied)
Only for Combi heating boilerDCW Domestic Cold Water ½”DHW Domestic Hot Water ½”
Only for standard heating boilerDR Boiler heating return for domestic hot
water production ¾”DS Boiler heating supply for domestic hot
water production ¾”
Mounting bracketVitodens 200 installation location
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FFL
BDBRDR/DCWGCDS/DHWBS
78”/1975mm
Wall Mounting
15
Wall Mounting Information (model WB2 11-44 and up)
The Vitodens 200 (model WB2 11-44 andup) 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.
The connection to the heating circuits(installation fittings are supplied in theInstallation Fittings package supplied withthe boiler) must be made on site.
Illustration: Wall-mounting and connection of the Vitodens 200 standard heating boiler
Reference point top edge Vitodens 200Mounting bracketVitodens 200 mounting template
*1Recommendation
Dimensionsa 23½”/600 mmb 3¼”/82 mmc 16”/407 mmd ¾”/18 mme 29”/740 mmf 78”/1975 mm
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FFL
a
b
cd
e
f*1
Condensate Connection/Neutralization Unit
16
Condensate Connection
Install the condensate drain pipe with asuitable gradient.Discharge condensate from the boiler intothe drainage system, either directly or (ifrequired) via a neutralization unit(accessory).
Pipe ventilation must take place betweenthe siphon trap and the neutralization unit (ifapplicable).
Condensate Connection for Vitodens 200H up to model WB2 8-32 H model WB2 11-44 and up
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 produced by a gas-firedheating system has a pH value between 3and 4.
Some local codes may require the use of aseparate neutralization unit to treat theaggressive and corrosive nature of thecondensate.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 200 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 the Vitodens200 boiler is lower than the drain, acondensate pump must be used.
Only corrosion-resistant materials must beused for condensate drainage purposes (e.g.braided hose). Do not use galvanizedmaterials or materials containing copper forpiping, couplings etc.The condensate drain must have a trap toprevent flue gas leakage.
Please note that other requirements mightapply 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 200 condensing boiler.
Condensate(effluent)
Values measuredin mg/ltr
substances Vitodens 200
LeadCadmiumChromiumCopperNickelZincTin
< 0.01< 0.005< 0.01< 0.01< 0.01< 0.05< 0.05
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IMPORTANT
Venting Option
a
Standard side wall venting layout
Max. wall thickness19.6”/500 mm
Combustion air intakeFlue gas outlet
a = total vent length
17
Side Wall Venting Option
Vent pipe adaptor
Elbow, 87° (1 per carton)
Straight pipe3.3 ft./1 m long
Vent termination(incl. wall flashings)Important!Total length of vent termination pipe is29”/730 mm. If required, the venttermination pipe may be shortened bymax. 12”/305 mm (min. venttermination length is 17”/425 mm).
Protective screenWarning!Protective screen MUST be installed.
Mounting clip, white (use at least 2)
Brass adaptor (M8 x 5/16” - 18) andSet of screws (#8 x 3/8”)(not shown; see Installation Instructions forVitodens 200 Direct Vent System for details.)
Combustion air intake
Flue gas outlet
a Total vent length*1
*1 See following page.
Note:For extreme cold climate conditions(sustained temperatures below 0°F / -18°C)Viessmann offers a different venttermination option.
CAUTIONUnder certain climatic conditions some building materials may be affected by flue products expelled in close proximity tounprotected surfaces. Sealing or shielding of the exposed surfaces with a corrosion resistant material (e.g. aluminumsheeting) may be required to prevent staining or deterioration. The protective material should be attached and sealed (ifnecessary) to the building before attaching the vent termination. It is strongly recommended to install the vent terminationon the leeward side of the building.
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Venting Option
18
Vent termination location requirements (for installations in Canada)
The vent must be installed observing localregulations in addition to National Codes,CAN/CSA-B149.1 or 2.A vent must NOT terminate...
1. ....directly above a paved sidewalk orpaved driveway which is locatedbetween two single-family dwellings andserves both dwellings.
2. ....less than 7 ft./2.13 m above a pavedsidewalk or a paved driveway located onpublic property.
3. ....within 6 ft./1.83 m of a mechanical airsupply inlet*1 to any building (dryervents, non-sealed combustion furnaceand hot water heater vents areconsidered to be mechanical air inlets).
4. ....above a meter/regulator assemblywithin 3 ft./0.9 m horizontally of thevertical centerline of the regulator ventoutlet and to a maximum verticaldistance of 15 ft./4.5 m.
5. ....within 3 ft./0.9 m of any gas serviceregulator vent outlet.
6. ....less than 1 ft./0.3 m above grade levelor anticipated snow level (consult localbuilding authorities or local weatheroffice). Locate the vent termination insuch a way that it cannot be blocked bysnow.
7. ....within the following distances of awindow or door which can be opened inany building, any non-mechanical airsupply inlet to any building or thecombustion air inlet of any otherappliance:
H 1 ft./0.3 m for inputs up to andincluding 100 000 Btu/h/30 kW(applicable only to boiler modelsWB2-24C/24).
H 3 ft./0.9 m for inputs exceeding100 000 Btu/h/30 kW (applicable toboiler models WB2-32 and up).
8. ....underneath a veranda, porch or deck,unlessH the veranda, porch, or deck is fullyopen on a minimum of two sides beneaththe floor, andH the distance between the top of thevent termination and the underside of theveranda, porch, or deck is greater than1 ft./0.3 m.
9. ....in areas where condensation maycause problems, such as above planters,patios, or adjacent to windows whereflue gases may cause fogging.
10. ....within 3 ft./0.9 m to the propertyline (advisable, not mandatory; pleasecheck with local building authorities andmunicipal bylaws).
11. ....at a location where ice formation onthe ground can present a hazard.
12. ....so that the flue gases are directedtoward brickwork, siding, or otherconstruction, in such a manner that maycause damage from heat or condensatefrom the flue gases.
13. ....where discharging hot flue gasesmay cause property damage or personalinjury.
14. ....within 3 ft./0.9 m from an insidecorner of outside walls.
*1Including heat recovery units.
Vent termination location requirements (for installations in the U.S.A.)
The vent must be installed observing localregulations in addition to National Codes,ANSI-Z223.1 or NFPA 54.A vent must NOT terminate...
1. ....less than 7 ft./2.13 m above a pavedsidewalk or a paved driveway located onpublic property.
2. ....within 4 ft./1.2 m horizontally fromservice regulator vents, electric and gasmeters as well as relief equipment.
3. ....less than 3 ft./0.9 m above any forcedair inlet located within 10 ft./3 m.
4. ....less than 1 ft./0.3 m above grade levelor anticipated snow level (consult localbuilding authorities or local weatheroffice). Locate the vent termination insuch a way that it cannot be blocked bysnow.
5. ....within 1 ft./0.3 m of a window ordoor which can be opened in anybuilding, any non-mechanical air supplyinlet to any building or the combustioninlet of any other appliance.
6. ....in areas where condensation maycause problems, such as above planters,patios, or adjacent to windows whereflue gases may cause fogging.
7. ....within 3 ft./0.9 m to the property line(advisable, not mandatory; please checkwith local building authorities andmunicipal bylaws).
8. ....at a location where ice formation onthe ground can present a hazard.
9. ....so that the flue gases are directedtoward brickwork, siding, or otherconstruction, in such a manner that maycause damage from heat or condensatefrom the flue gases.
10. ....where discharging hot flue gasesmay cause property damage or personalinjury.
11. ....within 3 ft./0.9 m from an insidecorner of outside walls.
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Venting Option
Equivalent vent length calculation
*1
19
Equivalent Vent Length
87º elbowVent pipe (3.3 ft./1 m)Vent pipe (1.65 ft./0.5 m)Vent termination
*1 First elbow not included in equivalentvent calculation.
H The maximum vent length on allmodels is 20 ft./6 m.
H The minimum vent length on allmodels is 17”/425 mm (length of the venttermination when cut to the minimumpermissible length).
H Do not exceed the maximum ventlength.
H Do not use more than five elbowswithin one vent system.
H First 87º elbow on boiler is notincluded in equivalent vent lengthcalculation.
Type of fitting Equivalent length
87º elbow/87º inspection tee
1.65 ft./0.5 m
45º elbow 1 ft./0.3 m
Equivalent vent length calculation example
2 x 87º elbow 3.3 ft./1 m.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 x vent pipe (1 m) 6.6 ft./2 m.. . . . . . . . . . . . . . . . . . . . . . .
1 x vent pipe (0.5 m) 1.65 ft./0.5 m.. . . . . . . . . . . .
1 x vent termination 2.4 ft./0.73 m.. . . . . . . . . . . . . .
Total equivalent length 13.95 ft./4.23 m
First elbow not included in equivalent ventcalculation.
Always include vent termination length incalculations.
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IMPORTANT
Venting Option
20
Vertical Venting Option
Vent pipe adaptor
Vent inspection tee/Elbow, 87° (1 per carton)
Sliding coupling
Straight pipe3.3 ft./1 m or1.65 ft./0.5 m
Elbow, 87° (1 per carton)
Elbow, 45° (2 per carton)
Vent terminationImportant!Never shorten vertical vent termination.
Mounting clip
Wall band (c/w vent termination)
Brass adaptor (c/w set of screws)(not shown; see Installation Instructions forVitodens 200 Direct Vent System for details.)
Roof flashing and storm collar(field supplied)
Flue gas outlet
Combustion air intake
Note:For extreme cold climate conditions(sustained temperatures below 0°F / -18°C)Viessmann offers a different venttermination option.
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Standard vertical venting layout
Venting Option
21
Vent termination location requirementsThe vent must be installed observing local regulations in addition to National Codes, CAN/CSA-B149.1 or 2 (for installations in Canada) orANSI-Z223.1 or NFPA 54 (for installations in the U.S.A.).
See table below for the following two conditions.H For sloped roof applications with distance b greater than 18”/450 mmH For flat roof applications
Model No.WB2-
24C/24/32(5” system)
44/60(6” system)
a (min.distance)
25”/635 mm*1
30”/762 mm*1
*1See WARNING below.
H For sloped roof applications with distance b less than 18”/450 mm
a minimum 18”/450 mmb <18”/450 mm
A vent used in a special vent system withpositive vent pressure and passing througha roof shall extend at least 18”/450 mmabove the highest point where it passesthrough the roof and any other obstructionwithin a horizontal distance of 18”/450 mm.
The special vent system shall not be routedinto, through, or within any other vent suchas an existing masonry or factory-builtchimney.
A masonry chimney flue may be used toroute the venting system only if no otherappliance is vented in the same flue.
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a
b
a
The vent termination must be at least12”/300 mm above the anticipated snowlevel (consult your local building authoritiesor local weather office). Locate venttermination in such a way that it cannotbe blocked by snow.
WARNING
a
b
IMPORTANT
Venting Option
Vent length “a”
a
22
Equivalent Vent Length
Equivalent vent length
Boiler model 6-24C 6-24 8-32 11-44 15-60
Maximum ventlength5” vent system6” vent system
ft./mft./m
33/10--
33/10--
27/8--
--33/10
--20/6
Minimum ventlength5” vent system6” vent system
ft./mft./m
3.9/1.2 (all models)
Do not exceed the maximum vent length.
Ceiling opening information
Boiler model Opening Ø
HWB2 6-24CHWB2 6-24HWB2 8-32
51/8“/130 mm
HWB2 11-44HWB2 15-60
63/8”/160 mm
Vertical vent termination
for boiler models WB2 6-24C,6-24 and 8-32
Dimensionsa 47” / 1190 mmb 28” / 713 mmc 21¾” / 552 mmd 3” / 80 mme 4¼” / 110 mmf 5” / 125 mmg Coaxial adaptor
4¼ to 5” /110 to 125 mm
h 4¾” / 120 mm
for boiler models WB2 11-44 and 15-60
Dimensionsa 47” / 1190 mmb 30½” / 779 mmc 21¾” / 552 mmd 7” / 177 mme 4¼” / 110 mmf 6” / 150 mm
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d
b
a
d
d
c
e
f
g
f
ha
b
e
c
d
f
Venting Option
23
Equivalent Vent Length (continued)
Type of fitting Equivalent length
87º elbow/87º inspection tee
1.65 ft./0.5 m
45º elbow 1 ft./0.3 m
Equivalent vent length calculation example 1
Vitodens 200, WB2 15-60
2 x 45º elbow 2 ft./0.6 m.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 x vent pipe (0.5 m) 1.65 ft./0.5 m.. . . . . . . . . . . .
1 x vent pipe (1 m) 3.3 ft./1 m.. . . . . . . . . . . . . . . . . . . . . . .
1 x vent termination 3.9 ft./1.2 m.. . . . . . . . . . . . . . . . .
Total equivalent length 10.85 ft./3.3 m
Always include vent termination length incalculations.
Type of fitting Equivalent length
87º elbow/87º inspection tee
1.65 ft./0.5 m
45º elbow 1 ft./0.3 m
Equivalent vent length calculation example 2
Vitodens 200, WB2 8-32
2 x 87º elbow 3.3 ft./1 m.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 x 45º elbow 2 ft./0.6 m.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 x vent pipe (0.5 m) 4.95 ft./1.5 m.. . . . . . . . . . . .
1 x vent pipe (1 m) 3.3 ft./1 m.. . . . . . . . . . . . . . . . . . . . . . .
1 x sliding coupling 0.8 ft./0.25 m.. . . . . . . . . . . . . . . .
1 x vent termination 3.9 ft./1.2 m.. . . . . . . . . . . . . . . . .
Total equivalent length 18.25 ft./5.55 m
Always include vent termination length incalculations.
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Equivalent vent length, example 1
IMPORTANT
Equivalent vent length, example 2
IMPORTANT
Venting Option
24
Single Wall Venting Option
Please note that there is no basic vent kit available for this vertical vent system.See product literature supplied by manufacturer for available component parts.
Coaxial vent pipe adaptor (comespre-installed on model WB2-44/60)
For Vitodens 200, WB2 models 6-24C,6-24 and 8-32, the vent pipe adaptormust be ordered with the boiler.
Vent pipe adaptor (coaxial>single-wall)
Elbow, 90°
Straight pipe*1
Elbow, 45°
Suspension band / hanger
Wall band
Vent termination coupling(c/w bird screen)
Flashing and storm collar
*1Available in different lengths.
For more detailed information oncomponent parts see product literaturesupplied by special venting manufacturer.
Note:The Vitodens boiler has passed the zeroinches vent clearance to combustiblestesting requirements dictated by theHarmonized Standard ANSI Z21.13. CSA4.9.2000 and therefore is listed for zeroclearance to combustibles when ventedwith a single wall special venting system(AL-29-4C material). The zero inches ventclearance to combustibles for the Vitodensboiler supercedes the clearance tocombustibles listing that appears on thespecial venting system label.
A masonry chimney flue may be used toroute the venting system only if no otherappliance is vented in the same flue.
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IMPORTANT
IMPORTANT
Venting Option
25
Vent termination location requirementsThe vent must be installed observing local regulations in addition to National Codes, CAN/CSA-B149.1 or 2 (for installations in Canada) orANSI-Z223.1 or NFPA 54 (for installations in the U.S.A.).
See table below for the following two conditions.H For sloped roof applications with distance b greater than 18”/450 mmH For flat roof applications
Model No.WB2-
24C/24/32(3” system)
44/60(4” system)
a (min.distance)
24”/610 mm*1
*1See WARNING below.
H For sloped roof applications with distance b less than 18”/450 mm
a minimum 18”/450 mmb <18”/450 mm
A vent used in a special venting systemwith positive vent pressure and passingthrough a roof shall extend at least 18”/450mm above the highest point where it passesthrough the roof and any other obstructionwithin a horizontal distance of 18”/450 mm.
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a
b
a
Vent termination must be at least12”/300 mm above the anticipatedsnow level (consult your local buildingauthorities or local weather office).Locate vent termination in such a waythat it cannot be blocked by snow.
WARNING
a
b
Venting Option
26
General Installation Examples
Ensure that the venting system is properlysupported; the Vitodens 200 boiler is notdesigned to support the weight of theventing system.
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Sloped roof installation Flat roof installation Sloped roof installation with offset
IMPORTANT
Venting Option
27
Maximum/Minimum Vent Length
Maximum vent length
Boiler model WB2 6-24C 6-24 8-32 11-44 15-60
a (max. length)3” vent system4” vent system
ft./mft./m
66/20--
66/20--
49/15--
--66/20
--49/15
Minimum vent length
Boiler model WB2 6-24C 6-24 8-32 11-44 15-60
a (max. length)3” vent system4” vent system
ft./mft./m
4 ft. / 1.2 m
Do not exceed maximum equivalent vent length or fall short of minimumequivalent vent length.
Ensure that the venting system is properlysupported; the Vitodens 200 boiler is notdesigned to support the weight of theventing system.
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Vent length “a”
a
IMPORTANT
Venting Option
28
Equivalent Vent Length
Type of fitting Equivalent length
90º elbow 3 ft./0.9 m
45º elbow 2 ft./0.6 m
Equivalent vent length calculation example
Vitodens 200, WB2 15-60
2 x 90º elbow 6 ft./1.8 m. . . . . . . . . . . . . . . .2 x 45º elbow 4 ft./1.2 m. . . . . . . . . . . . . . . .3 x vent pipe (0.5 m) 4.9 ft./1.5 m. . . . . . .2 x vent pipe (1 m) 6.6 ft./2 m. . . . . . . . . . .Total equivalent length 21.5 ft./6.5 m
Ensure that the venting system is properlysupported; the Vitodens 200 boiler is notdesigned to support the weight of theventing system.
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Equivalent vent length calculation example
IMPORTANT
Electrical Connection
29
Electrical Connection
Power SupplyThe Vitodens 200 is shipped with a PowerModule (up to model WB2 8-32) or with aPower/Pump Module (model WB2 11-44and up). Both modules require a 120 VACpower supply from a wall receptacle. Themodules contain a 120/230 VAC step-uptransformer to power the Vitodens 200 with230 VAC. Refer to the InstallationInstructions shipped with the modules forwiring details.
Power Supply Connection of AccessoriesThe power supply connection of accessoriescan be made directly at the boiler control.The connection is activated and deactivatedwith the system on/off switch.The Dekamatik-HK1 control, the mixingvalve accessory kit and the Solartrol controlrequire a separate 120 VAC power supplyfrom the wall receptacle.
2-wire cabling required for:H outdoor temperature sensorH Vitotronic 050/Dekamatik-HK1H accessory kit for heating circuit withmixing valve
H remote switching of operating modeH remote disableH alarm outputH wall-mount base (when the programmingunit is used as a remote control)
3-wire cabling required for:H remote control RS/WSH circulating pump
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Control for Weather-Responsive Operation
30
Control for Weather-Responsive Operation
Built into the Vitodens 200 boiler is a menu-driven programming unit with...
H day and week feature and fourprogrammable activation periods per dayfor reduced operation, activation of DHWproduction or activation of the DHWcirculating pump
H freeze-up protection of entire heatingsystem
H integrated diagnostic systemH integrated DHW tank temperature control
Constructional Design and Functions
Modular Structure
The control unit contains:System on/off switch, override/emissiontest switch, comfort switch (operationalonly on Combi heating boiler), fixed highlimit, adjustable high limit, digital display,micro-computer, adjustment options forswitching times, for temperatures duringnormal and reduced operation, domestic hotwater temperature, adjustment options forheating curves, temperature scanningoptions, built-in diagnostic system andfuses.
Boiler-Specific Functions
The control unit adjusts the boiler watertemperature (= supply temperature of adirect-connected heating circuit and/or aheating circuit with mixing valve in conjunctionwith the accessory kit for a heating circuitwith mixing valve) automatically and on acontinuous basis to individual outdoortemperatures. The control has a DHWtemperature controller with DHW priorityswitching (heating circuit pump off).
Technical Data
Rated supplyvoltage: 120 VACRated frequency: 60 HzRated current: 12 AMax. ambienttemperatureH at operation: 32 to 104 ºF
0 to 40 ºCFor use in your livingarea or boiler rooms(with standard ambientconditions)
Hwhen storing ortransporting: –4 to +149 ºF
–20 to +65 ºC
Max. operating tempearturesetting (space heating):167 ºF/75 ºC
Adjustment rangeadjustable high limit(DHW production): 108 to 172 ºF
42 to 78 ºCSetting fixedhigh limit: 210 ºF/99 ºC
(not adjustable)Adjustment rangeof DHW tank setpointtemperature: 50 to 140 ºF
10 to 60 ºCAdjustment rangeheating curvesH Heating curveH slope 0.2 to 3.5H Heating curveH shift: 10 to 91 ºF
–12 to +33 ºC
Programming Unit
H Illuminated display with 8 text linesHMenu-driven user guidanceH All settings, main codings and faultmessages shown in plain text
H Holiday programH Party button for switching to ”normaloperation” whenever required
H Energy savings button for lowering thedesired room temperature by approx.3.6 °F/2 °C in normal operation
The programming unit can be used as aremote control (wall-mount base must beordered separately).
Timer Schedule of Programming Unit
Digital timer with day and week feature,calendar and automatic resetting to daylightsavings time.
Timer of Programming Unit (continued)
Time, day and standard switching times arefactory preset (individually programmable),up to four switching times selectable perday.Shortest switchinginterval: 10 minutesPower reserve: 15 years
Heating Programs
The freeze-up protection function*1 is activein all operating modes.The following heating programs can beselected with the operating mode selectorswitch:H Continuous standbyH DHW production onlyH Normal operation/reduced operation ornormal operation/standby
*1 See ”Freeze-up Protection Function”below.
Freeze-up Protection Function
The freeze-up protection function isH activated when the outdoor temperaturedrops below approx. 34 °F/1 °C.When the freeze-up protection function isactivated, the heating circuit pump isactivated and the boiler water is kept at aminimum temperature of approx.68 °F/20 °C.
H deactivated when the outdoor temperatureexceeds approx. 37 °F/3 °C.
Summer OperationHeating program ” ”
The burner is only activated upon a call fordomestic hot water from the DHW storagetank (controlled by DHW tank temperaturesensor).
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Control for Weather-Responsive Operation
31
Heating Curve Adjustment (slope and shift)
The control unit regulates the boiler watertemperature (= supply temperature ofheating circuit without mixing valve) and thesupply temperature of the heating circuitwith mixing valve (in conjunction with theaccessory kit for a heating circuit withmixing valve) according to the outdoortemperature.The supply temperature that is required toachieve a given room temperature dependson the heating system and the thermalinsulation of the building that is beingheated.The adjustment of the two heating curves isused to match the boiler water temperatureand the supply temperature to theseconditions.
Heating curves:
Low temperature heating system, e.g.radiant floor heatingMedium temperature heating system,e.g. cast iron radiation, staple-upradiant floor heatingHigh temperature heating system,e.g. fintube radiation, fan coils
The boiler water temperature is limitedupwards by the fixed high limit and thetemperature set for the electronic high limit.The supply temperature cannot rise abovethe boiler water temperature.
Boiler Temperature Sensor
The boiler temperature sensor is connectedat the control unit for weather-responsiveoperation and is built into the boiler.Max. ambient temperatureH at operation: 32 to 266 ºF
0 to 130 ºCHwhen storing or
transporting: –4 to +158 ºF–20 to +70 ºC
Outdoor Temperature Sensor
Sensor location:H North or northwest wall of buildingH 6.6 to 8.2 ft./2 to 2.5 m above ground orin case of a multi-storey building approx.halfway up the second floor
Electrical connection:H 2-wire cable, max. cable length 115 ft./35 m with a wire size of min. AWG 16copper
H Cable to the outdoor sensor must not belaid near line voltage wiring(120/240 V)
Max. ambient temperature atoperation, when storingor transporting: –40 to +158 ºF
–40 to +70 ºC
DHW Tank Temperature SensorPart No. 7134 239
Supplied with:H installation fittings for horizontal DHWstorage tanks (42 to 120 USG/160 to 450ltr) (DHW tank must be ordered separatelyat time of order)
H installation fittings for vertical DHWstorage tanks (42 to 120 USG/160 to 450ltr)(DHW tank must be ordered separatelyat time of order)
H DHW production kit for Vitodens 200Cable length approx. 13 ft./3.75 m, readyto plug in
Max. ambient temperatureH at operation: 32 to 194 ºF
0 to 90 ºCH when storing or transporting:
–4 to +158 ºF–20 to +70 ºC
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Control for Weather-Responsive OperationAccessories
32
Control for Weather-Responsive OperationAccessories
Mixing Valve Actuator Accessory Kit,Part No. 7133 392
Mixing valve actuator
The mixing valve actuator is mounteddirectly on the Viessmann ¾ to 2½“ mixingvalve.The mixing valve actuator is a motor-drivencontrol unit. The rotational direction isreversible.The mixing valve actuator comes with aplug-in connector for a heating circuit pump,supply temperature sensor (strap-on sensorwith 19.7 ft./6 m connecting cable), powersupply connecting cable (10 ft./3 m) and aconnecting cable (10 ft./3 m) for theKM-BUS Expansion Module.Rated voltage: 120 VACRated frequency: 60 HzRated current: 4 (2) APower consumption: 4 WMax. ambient temperatureH at operation: 32 to 104 ºF
0 to 40 ºCHwhen storingH or transporting: –4 to +149 ºF
–20 to +65 ºCRelay output forheating circuit pump: 4(2) A, 120 VAC
Actuatortorque: 3 NmTime of 90 º∢: 2 minutes
Supply Temperature Sensor(strap-on sensor, included with mixingvalve actuator accessory kit),Part No. 7133 895
Installed with a strapping band.Cable length 19.7 ft./6 m, ready to plug in.Max. ambient temperatureH at operation: 32 to 212 ºF
–0 to 100 ºCHwhen storingH or transporting: –4 to +149 ºF
–20 to +70 ºC
Viessmann 2-Wire BUS Expansion Module,Part No. 7134 276for connecting a Vitotronic 050 or aDekamatik-HK heating circuit control,a Vitocom 200, a Vitocom 300 or aSolartrol control.Comprises one circuit board.
Setting range: 86 to 212 ºF30 to 100 ºC
Operating differential: 8 ºC
Wall-Mount Base with Blank Cover,Part No. 7133 385(used when the programming unit of thecontrol is used as remote control)
All functions of the programming unit canbe used.WS function: Unit can be mountedanywhere in the building.RS function: The remote control is mountedon an inside wall of the main living areaopposite radiators, not in shelves, alcovesor next to doors or sources of heat (e.g. indirect sunlight, next to a fireplace, TV, etc.).Electrical connection:H 2-wire cable, max. cable length 98 ft./30 m with a wire size of min. AWG 16copper
H Cable to the outdoor sensor must not belaid near line voltage wiring(120/240 V)
Max. ambient temperatureH at operation: 32 to 104 ºF
0 to 40 ºCHwhen storingH or transporting: –4 to +149 ºF
–20 to +65 ºC
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Control for Weather-Responsive OperationAccessories
33
Boiler Temperature Indication Unit,Part No. 7133 384
Must be inserted into the control unit forweather-responsive operation when theprogramming unit of the control is used asremote control.Boiler water temperature and fault messagesare displayed.
Temperature Sensor for Low-Loss Header,Part No. 7134 240
Supply temperature sensor for the commonsupply in applications with a low-lossheader.Installed with a strapping band.Cable length approx. 12 ft./3.75 m, readyto plug in.Max. ambient temperatureH at operation: 32 to 104 ºF–2
0 to 90 ºCHwhen storingH or transporting: –4 to +149 ºF
–20 to +70 ºC
Remote Control WSPart No. 7133 380
The remote control unit is used to set thedesired temperatures for normal operation(daytime temperature) and reducedoperation (night setback temperature) of oneheating circuit from any chosen room in thebuilding.Only one remote control unit can beconnected. If a heating circuit with mixingvalve is installed, the remote controlcontrols the heating circuit with mixingvalve.Electrical connection:H 3-wire cable (without ”green/yellow” wire),max. cable length 98 ft./30 m with a wiresize of min. AWG 16 copper
H Cable to the WS control sensor must notbe laid near line voltage wiring(120/240 V)
Max. ambient temperatureH at operation: 32 to 104 ºF–2
0 to 40 ºCHwhen storingH or transporting: –4 to +149 ºF
–20 to +65 ºCSetting range for roomtemperature setpointH Selector knob ” ”: 57 to 79 ºF
14 to 26 ºCH Selector knob ” ”: 45 to 73 ºF
7 to 23 ºCDesired roomtemperature when selectorswitch is set to ” ”: 37 to 41 ºF71
3 to 25 ºC
Remote Control RSPart No. 7133 381
The remote control unit is used to set thedesired temperatures for normal operation(daytime temperature) and reducedoperation (night setback temperature) of oneheating circuit from the main living area.The built-in room temperature sensormeasures the room temperature andinitiates any necessary correction of thesupply temperature.Only one remote control unit can beconnected. If a heating circuit with mixingvalve is installed, the remote control unitcontrols the heating circuit with mixingvalve.The remote control unit is mounted on aninside wall of the main living area oppositeradiators, but not in shelves, alcoves orimmediately next to doors or sources ofheat (e.g. in direct sunlight, next to afireplace, TV etc.).Electrical connection:H 3-wire cable (without ”green/yellow” wire),max. cable length 98 ft./30 m with a wiresize of min. AWG 16 copper
H Cable to the RS control sensor must notbe laid near line voltage wiring(120/240 V)
Note on the room temperature sensingfunction (RS function) when using a remotecontrolDue to the ”inertia” of underfloor heatingsystems, the RS function must not be usedfor an underfloor heating circuit.
Max. ambient temperatureH at operation: 32 to 104 ºF––2
0 to 40 ºCHwhen storingH or transporting: –4 to +149 ºF
–20 to +65 ºCSetting range for roomtemperature setpointH Selector knob ” ”: 57 to 79 ºF
14 to 26 ºCH Selector knob ” “: 45 to 73 ºF
7 to 23 ºCDesired roomtemperature when selectorswitch is set to ” “: 37 to 41 ºF1
3 to 25 ºC
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Control for Weather-Responsive Operation/Vitodens 200Accessories
34
Room Temperature Sensor,Part No. 7133 379
Separate room temperature sensor used inaddition to the RS remote control forapplications where the RS remote controlunit cannot be positioned in the main livingarea or in a suitable location for temperaturemeasurement/setting purposes.The room temperature sensor is mounted onan inside wall of the main living areaopposite radiators, but not in shelves,alcoves or immediately next to doors orsources of heat (e.g. in direct sunlight, nextto a fireplace, TV etc.).The room temperature sensor is connectedto the RS remote control unit.Electrical connection:H 2-wire cable with a wire size of min. AWG16 copper
H The cable length between the control unit,remote control unit and room temperaturesensor must not exceed 98 ft./30 m
H Cable to the outdoor sensor must not belaid near line voltage wiring (120/240 V)
Max. ambient temperatureH at operation: 32 to 104 ºF–
0 to 40 ºCHwhen storingH or transporting: –4 to +149 ºF
–20 to +65 ºC
Expansion Board,for Vitodens 200 up to model WB2 8-32Part No. 7134 209
for Vitodens 200 model WB2 11-44 and upPart No. 7134 211
With the installation of an expansion boardthe following capabilities are added:H Connection of an additional heating circuitpump (only for models up to WB2 8-32)
H Connection of a dry contact to operate anexternal alarm with the following ratings:24/250 V, 5 APlease see following table.
Pump Alarm
WB2-24C –– H
WB2-24 H H
WB2-32 H H
WB2-44 –– H
WB2-60 –– H
Accessories for Vitodens 200
Neutralization Unit for Single-BoilerApplicationswith neutralizing granulate
for Vitodens 200 up to model WB2 8-32Part No. 7134 231
for Vitodens 200 model WB2 11-44 and upPart No. 7134 232
Neutralization Pellets(4.4 x 2.9 lbs./2 x 1.3 kg)Part No. 9524 670For refill or replacement purposes
Cosmetic Piping Cover for InstallationFittingsto cover water and gas fittings and piping,for Vitodens 200 up to model WB2 8-32Part No. 7339 571
Conversion Kitfor fuel conversion in the field from–natural gas to liquid propane–liquid propane to natural gas
(When ordering, please state–type of fuel conversion–boiler model no.)
Low-Loss Header(not applicable to Combi Series boilers!)–Type 80/50Part No. 7134 230(max. flow rate 17.6 GPM / 4 m3/h)–Type 120/80Part No. 7134 244(max. flow rate 35.2 GPM / 8 m3/h)–Type 160/80Part No. 7134 293*1
(max. flow rate 44 GPM / 10 m3/h )–Type 200/120Part No. 7134 294*1
(max. flow rate 80 GPM / 18 m3/h )
When used in conjunction with the Vitodens200 boiler, the low-loss header acts ashydraulic break, decoupling boiler andsystem circuits from each other.It is recommended to use the low-lossheader in applications in which the totalsystem flow rate exceeds the maximum (orminimum) boiler flow rate.For maximum boiler flow rates, see table onpage 8 in this manual.Viessmann strongly recommends the use ofa low-loss header in cases where thesystem head and flow rates are unknown.
*1Floor-mounted version (typically used formultiple-boiler installations).
Continued on following page...
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310 DN 40
145
400 DN 40
Ø145
195
Vitodens 200 Accessories
35
Accessories for Vitodens 200 (continued)
The temperature sensor connection [TS]typically located at the top of the low-lossheader ensures low return temperatures tothe Vitodens 200 boiler at all times,increasing operational efficiency.In addition, the low-loss header helpseliminate air and debris [D] from the heatingsystem.See figures on the right for an illustration ofthe principle of operation.
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
Type 160/80*1 44 GPM / 10 m3/h
Type 200/120*1 80 GPM / 18 m3/h
*1Product does not look exactly asillustrated.
Legend
AB Air BleedBR Boiler ReturnBS Boiler SupplyBY Bypass (with laminar flow)D Debris and/or airDV Drain ValveSC Sensor CableSR System ReturnSS System SupplyTS Viessmann Temperature SensorSW Sensor Well
Use only a Viessmann supplied temperaturesensor. Do not use any othermanufacturer’s temperature sensor.
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 ± 167°F / 75°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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BS
SS
SR
BR
TS
BY
AB
D
Low-loss header design(Type 80/50 or 120/80)
SC
SW
T1
T2
Vprimary Vsecondary
T3
T4
Principle of Operation
T4Vbypass
IMPORTANT
IMPORTANT
Standard Equipment
36
Standard Equipment
The Vitodens 200 gas-fired condensingboiler with Inox-Radial heat exchangersurfaces, modulating MatriX-compact gasburner for natural gas and liquid propane,aqua-plate with plug-in connection systemc/wH pressure gage and KM-BUS variable speedpump (for WB2 6-24C, 6-24 and 8-32only)
H installation fittings with 30 psig pressurerelief valve and air vent
H boiler control unit with outdoortemperature sensor, power module (up tomodel WB2 8-32) or power/pump module(model WB2 11-44 and up)
– The boiler comes fully piped and prewired.– The Vitodens 200 Combi boiler isequipped with an integrated stainless steelplate heat exchanger for instantaneousDHW heating.
– Venting material (coaxial) is to be suppliedby Viessmann only. Side wall ventinstallations must include Viessmannprotective screen!
– Enclosure finish:black steel, powder-coated white
– The Vitodens 200 comes ready for usewith natural gas and can be fuelconverted to liquid propane.
Wall mounting componentryThe following wall mounting componentsare supplied with the Vitodens 200 boiler:HMounting bracket (comes preinstalled formodels up to WB2 8-32)
HMounting boltsH Installation fittingsH Screws for mounting bracket on– wood studs (2” x 4”)– metal studs– brick/concrete wall
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How the Vitodens 200 boiler operates... /Installation Examples
37
How the Vitodens 200 boiler operates...
The MatriX burner blower and thecombination gas valve are factory calibratedand pre-adjusted for optimum boilerperformance at all firing rates through anon-mechanical, pneumatic modulating linkbetween combustion air and gas flows.Blower speed is automatically increased ordecreased based on heat demand andventing system resistances, therebyregulating the amount of combustion airdrawn. The pneumatic modulating linkbetween air and gas introduces the requiredamount of gas for correct combustion tomeet the current heat demand, based on alinear relationship between ∆ P air and ∆ Pgas. The optimum combustion air flow rateis recognized and monitored by thedifferential air pressure sensor (transducer).The output voltage signal of the transduceris analyzed for logic by the LGM 29 burnercontrol unit. The LGM 29 burner control unitcontains pre-programmed performancecurves and operational safety parametersunique for every boiler model.
Flue gas adaptation functionThe Vitodens 200 has a flue gas adaptationfunction. This function records, processes,and reacts in real time to fluctuations inpressure drop in the vent air-intake pipeduring normal operation caused by partialpipe blockages due to ice formation at thevent termination, debris and/or sudden highwinds. Such increase in pressure drop, ifnot promptly corrected, will reduce thecombustion air flow rate, and hence lead tounstable combustion. The differential airpressure sensor (transducer) records suchpressure drops and supplies voltage signalsto the LGM 29 burner control unit which, inturn (based on stored performance curvesand safety parameters), initiates promptadjustment of the blower rotational speed,thus readjusting the combustion air flowrate for optimum combustion. The sameautomatic adaptation logic applies ifcombustion air is reduced (or increased) dueto slower (or faster) blower speed resultingfrom line voltage drops (or increases) below(or above) the threshold of 85% (or 110%).
Installation Examples
The examples on the following pages depictpossible piping layouts of the Vitodens 200boiler equipped with Viessmann SystemTechnology.For boiler and tank combinations, pleaseinstall only feasible combinations listed inthe Viessmann Price List.
Please note that the following examples aresimplified conceptual drawings only!Piping and necessary componentry must befield verified.A low water cut-off (LWCO) must beinstalled where required by local codes.Proper installation and functionality in thefield is the responsibility of the heatingcontractor.
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IMPORTANTIf a DHW storage tank other than aViessmann Vitocell 100 or 300 tank isused, the installer must verify properoperation of the Viessmann DHW tanktemperature sensor with the originalmanufacturer of the tank. Viessmannstrongly recommends the installation of atemperature tempering valve in the DHWsupply line.
WARNING
Installation Examples
38
System Layout 1Vitodens 200 (model WB2 6-24C) with a direct-connected heating circuit
AV Air ventDCW Domestic cold waterDHW Domestic hot waterPRV 1 Pressure relief valve (30 psig)PRV 2 Pressure relief valve (150 psig)WSE Water softening equipment/filter
Vitodens 200 gas-fired CombiboilerHeating circuitRemote control for programming unitOutdoor temperature sensor ofcontrol unit forweather-responsive operation
E1 Precharged expansion tankE2 Precharged expansion tank (required
where backflow preventer isinstalled; check local plumbing codesand requirements)Expansion tank pressure rating mustbe greater than 150 psig andsuitable for potable waterapplicationsOptional purge tee (field supplied) foreasier air removal
The low-loss header cannot be used withthe Vitodens 200 Combi Series boiler, WB26-24C. The WB2 6-24C is specificallydesigned for small, “one-temperature”apartments or bungalows, where flow andhead requirements are low and can behandled by the built-in heating circuit pump.
Do not use the expansion board to control aseparate system heating circuit pump withVitodens 200 Combi Series boiler, WB26-24C.A heating circuit pump controlled by anexpansion board will run as a DHWrecirculation pump in parallel to the demandfor domestic hot water rather than asintended.
Upon a call for DHW, the built-in divertingsolenoid valve is energized. The boiler hotwater is diverted to the DHW loop atmaximum pump rotational speed (novariable speed pump operation during DHWproduction). Once the DHW instantaneousplate heat exchanger is satisfied, the built-indiverting solenoid valve is de-energized andheating operation resumes.
The built-in plate heat exchanger isequipped with two independent temperaturesafety features, one surface-mounted limittemperature switch on the heating boilerside and one temperature immersion controlsensor on the DHW side.
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PRV 1
DHW
DCW
AV
PRV 2
E1
E2
WSE
Important:Please note location of expansion tank
IMPORTANT
IMPORTANT
Installation Examples
39
System Layout 2Vitodens 200 (up to model WB2 8-32) with...
– DHW storage tank– one direct-connected heating circuit– one heating circuit with a mixing valve
AV Air ventPRV Pressure relief valveTPV Temperature and pressure relief
valve
Vitodens 200 gas-fired condensingboiler with programming unit forweather-responsive operationOutdoor temperature sensorRemote control for programming unitUnderfloor heating circuitRadiator heating circuitHeating circuit pump (field supplied)Mixing valve temperature sensorAccessory kit for a heating circuitwith mixing valve
I Domestic hot water storage tankDHW tank temperature sensorExpansion tankOptional purge tee (field supplied) foreasier air removalDHW supply and return piping
Installation of different heating circuits...H radiator heating circuit (high temperaturecircuit)
H underfloor heating circuit with 3-waymixing valve (low temperature circuit)
H DHW production...with the following flow conditions1. The water flow rate (output) of theradiator heating circuit is at least 30%greater than that of the underfloor heatingcircuit.2. The total flow rate of the two heatingcircuits is less than the maximum possiblewater flow rate of the Vitodens 200 (seefollowing table).
Model No.
Vitodens 200,
Max. flow rate(GPM/ltr/h)
WB2 6-24C 6.2/1400
WB2 6-24 6.2/1400
WB2 8-32 7.0/1600
The use of a low-loss header is stronglyrecommended if the maximum water flowrate in the application concerned exceedsthe values shown in the table above, or ifthe system flow rates are unknown.The low-loss header is available asaccessory part.See the following pages for installationexamples with a low-loss header.
The 3-way mixing valve, built-in to achievethe low temperature level of the underfloorheating circuit, is controlled by an accessorykit for a heating circuit with mixing valve.The circulation pump built into the Vitodens200 boiler supplies the radiator heatingcircuit. The underfloor heating circuit issupplied by a circulation pump installed onsite which is controlled by the accessory kit.
Upon a call for DHW, the built-in divertingsolenoid valve is energized. The boiler hotwater is diverted to the DHW loop atmaximum pump rotational speed (novariable speed pump operation during DHWproduction). Once the DHW tank issatisfied, the built-in diverting solenoid valveis de-energized and heating operationresumes.
DHW supply and return piping between boiler DHW connections and the Viessmann DHW tank connections , shall be a minimum of 1”nominal pipe diameter (irrespective of the ¾” DHW connection outlet sizes provided on the boiler and the DHW tank). This will ensure theresidual head of the built-in pump is fully utilized to overcome the resistance of the DHW heat exchanger coil and to provide sufficientwater 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 versusboiler pump residual head to ensure sufficient water flow to the boiler heat exchanger. Failure to heed the above instructions may causeboiler short-cycling and inadequate DHW supply.
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AVPRV
TPV
I
Y
M~
Important:Please note location of expansion tank
IMPORTANT
Installation Examples
40
System Layout 3Vitodens 200 (up to model WB2 8-32) with...
– DHW storage tank– one heating circuit with mixing valve– one heating circuit without mixing valve and low-loss header
AV Air ventPRV Pressure relief valveTPV Temperature and pressure relief
valve
Vitodens 200 gas-fired condensingboiler with programming unit forweather-responsive operationOutdoor temperature sensorRemote control for programming unitUnderfloor heating circuitRadiator heating circuitHeating circuit pumps (field supplied)Mixing valve temperature sensorAccessory kit for a heating circuitwith mixing valve
I Domestic hot water storage tankDHW tank temperature sensorExpansion tankLow-loss headerViessmann temperature sensor forlow-loss header
Optional purge tee (field supplied) foreasier air removal
S DHW supply and return piping
Installation of different heating circuits...H radiator heating circuit (high temperaturecircuit)
H underfloor heating circuit with 3-waymixing valve (low temperature circuit)
H DHW production...with the following flow conditions1. The total flow rate of the two heatingcircuits is greater than the maximumpossible water flow rate of the Vitodens200 (see following table).
Model No.
Vitodens 200,
Max. flow rate(GPM/ltr/h)
WB2 6-24C 6.2/1400
WB2 6-24 6.2/1400
WB2 8-32 7.0/1600
The use of a low-loss header is thereforerecommended.The low-loss header is available asaccessory part.See page 34 in this manual for details onthe low-loss header.
The 3-way mixing valve, built-in to achievethe low temperature level of the underfloorheating circuit, is controlled by an accessorykit for a heating circuit with mixing valve.The circulation pump built into the Vitodens200 boiler supplies the heating circuit up tothe low-loss header.The radiator heating circuit is supplied by acirculation pump installed on site.
An expansion board (optional) must beordered from Viessmann to control thispump. See page 34 for details.
The underfloor heating circuit is supplied bya circulation pump installed on site which iscontrolled by the accessory kit.Upon a call for DHW, the built-in divertingsolenoid valve is energized. The boiler hotwater is diverted to the DHW loop atmaximum pump rotational speed (novariable speed pump operation during DHWproduction). Once the DHW tank issatisfied, the built-in diverting solenoid valveis de-energized and heating operationresumes.
DHW supply and return piping betweenboiler DHW connections and the Viessmann
DHW tank connections S , shall be aminimum of 1” nominal pipe diameter(irrespective of the ¾” DHW connectionoutlet sizes provided on the boiler and theDHW tank). This will ensure the residualhead of the built-in pump is fully utilized toovercome the resistance of the DHW heatexchanger coil and to provide sufficientwater flow to the boiler heat exchanger.In non-Viessmann DHW tank applications,perform, in addition to the above, accuratecalculations for DHW tank coil pressure dropversus boiler pump residual head to ensuresufficient water flow to the boiler heatexchanger. Failure to heed the aboveinstructions may cause boiler short-cyclingand inadequate DHW supply.
5167472v3
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AVPRV
TPV
I
Y
M~
Important:Please note location of expansion tank
S
S
IMPORTANT
IMPORTANT
Installation Examples
41
System Layout 4Vitodens 200 (up to model WB2 8-32) with...
– DHW storage tank– two heating circuits with a mixing valve
AV Air ventPRV Pressure relief valveTPV Temperature and pressure relief
valve
Vitodens 200 gas-fired condensingboiler with programming unit forweather-responsive operation with2-wire BUS expansion moduleOutdoor temperature sensorRemote control for programming unitUnderfloor heating circuitRadiator heating circuitHeating circuit pump (field supplied)Mixing valve temperature sensorAccessory kit for a heating circuitwith mixing valve
I Vitotronic 050/Dekamatik-HK1 controlwith communication moduleDHW storage tankDHW tank temperature sensorExpansion tankLow-loss header
O Viessmann temperature sensor forlow-loss header
P Vitotrol 200 remote controlR Optional purge tee (field supplied) for
easier air removalS DHW supply and return piping
Installation of different heating circuits...H radiator heating circuitH underfloor heating circuit with 3-waymixing valve (low temperature circuit)
H DHW production...with the following flow conditions1. The total flow rate of the two heatingcircuits is greater than the maximumpossible flow rate of the Vitodens 200 (seefollowing table).
Model No.
Vitodens 200,
Max. flow rate(GPM/ltr/h)
WB2 6-24C 6.2/1400
WB2 6-24 6.2/1400
WB2 8-32 7.0/1600
The use of a low-loss header is thereforerecommended.The low-loss header is available asaccessory part.See page 34 in this manual for details onthe low-loss header.
The 3-way mixing valve, built-in to achievethe low temperature level of the underfloorheating circuit, is controlled by an accessorykit for a heating circuit with mixing valve.The circulation pump built into the Vitodens200 boiler supplies the heating circuit up tothe low-loss header.The underfloor and radiator heating circuitsare supplied by circulation pumps installedon site which are controlled by theaccessory kit or the Vitotronic 050/Dekamatik-HK1 control.If more than two heating circuits withmixing valves are to be connected, they canbe controlled by the Vitocontrol.Contact your local Viessmann TechnicalSales Representative for details.
Upon a call for DHW, the built-in divertingsolenoid valve is energized. The boiler hotwater is diverted to the DHW loop atmaximum pump rotational speed (novariable speed pump operation during DHWproduction). Once the DHW tank issatisfied, the built-in diverting solenoid valveis de-energized and heating operationresumes.
DHW supply and return piping betweenboiler DHW connections and the Viessmann
DHW tank connections S , shall be aminimum of 1” nominal pipe diameter(irrespective of the ¾” DHW connectionoutlet sizes provided on the boiler and theDHW tank). This will ensure the residualhead of the built-in pump is fully utilized toovercome the resistance of the DHW heatexchanger coil and to provide sufficientwater flow to the boiler heat exchanger.In non-Viessmann DHW tank applications,perform, in addition to the above, accuratecalculations for DHW tank coil pressure dropversus boiler pump residual head to ensuresufficient water flow to the boiler heatexchanger. Failure to heed the aboveinstructions may cause boiler short-cyclingand inadequate DHW supply.
5167472v3
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PRV AV
TPV
OI
Y
M~ M~
P
Important:Please note location of expansion tank
S
S
IMPORTANT
Installation Examples
42
System Layout 5Vitodens 200 (up to model WB2 8-32) with...
– direct-connected heating circuit– one heating circuit with system separation
AV Air ventPRV Pressure relief valveTPV Temperature and pressure relief
valve
Vitodens 200 gas-fired condensingboiler with programming unit forweather-responsive operationOutdoor temperature sensorRemote control for programming unitUnderfloor heating circuitRadiator heating circuitPlate heat exchanger for systemseparationHeating circuit pump (field supplied)Mixing valve temperature sensor
I Accessory kit for heating circuit withmixing valveDHW storage tankDHW tank temperature sensorExpansion tankOptional purge tee (field supplied) foreasier removal of air
DHW supply and return piping
Installation of different heating circuits...H radiator heating circuit (high temperaturecircuit)
H underfloor heating circuit with 3-waymixing valve (low temperature circuit)
H DHW production...with the following flow conditions1. The flow rate (output) of the radiatorheating circuit is at least 30% greater thanthat of the underfloor heating circuit.2. The total flow rate of the two heatingcircuits is less than the maximum possiblewater flow rate of the Vitodens 200 boiler(see following table).
Model No.
Vitodens 200,
Max. flow rate(GPM/ltr/h)
WB2 6-24C 6.2/1400
WB2 6-24 6.2/1400
WB2 8-32 7.0/1600
The use of a low-loss header is stronglyrecommended if the maximum water flowrate in the application concerned exceedsthe values shown in the preceding table, orif the system flow rates are unknown.The low-loss header is available as anaccessory part.
See preceding pages for installationexamples with a low-loss header.See page 34 in this manual for details onthe low-loss header.
The 3-way mixing valve, built-in to achievethe low temperature level of the underfloorheating circuit, is controlled by an accessorykit for a heating circuit with mixing valve.The circulation pump built into the Vitodens200 boiler supplies the radiator heatingcircuit and the plate heat exchanger forsystem separation. The underfloor heatingcircuit is supplied by a circulation pumpinstalled on site which is controlled by theaccessory kit.
Upon a call for DHW, the built-in divertingsolenoid valve is energized. The boiler hotwater is diverted to the DHW loop atmaximum pump rotational speed (novariable speed pump operation during DHWproduction). Once the DHW tank issatisfied, the built-in diverting solenoid valveis de-energized and heating operationresumes.
The pressure drop (secondary circuit) of theplate heat exchanger must be lessthan/equal to (≦) the pressure drop of the3-way mixing valve.This must be taken into account whensizing the plate heat exchanger.
DHW supply and return piping betweenboiler DHW connections and the Viessmann
DHW tank connections , shall be aminimum of 1” nominal pipe diameter(irrespective of the ¾” DHW connectionoutlet sizes provided on the boiler and theDHW tank). This will ensure the residualhead of the built-in pump is fully utilized toovercome the resistance of the DHW heatexchanger coil and to provide sufficientwater flow to the boiler heat exchanger.In non-Viessmann DHW tank applications,perform, in addition to the above, accuratecalculations for DHW tank coil pressure dropversus boiler pump residual head to ensuresufficient water flow to the boiler heatexchanger. Failure to heed the aboveinstructions may cause boiler short-cyclingand inadequate DHW supply.
5167472v3
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TPV
PRVAV
I
Y
M~
Important:Please note location of expansion tank
IMPORTANT
IMPORTANT
Installation Examples
43
System Layout 6Vitodens 200 (model WB2 11-44 and up) with...
– DHW storage tank and– one direct-connected heating circuit
Y
AV Air ventPRV Pressure relief valveTPV Temperature and pressure relief
valve
Vitodens 200 gas-fired condensingboiler with programming unit forweather-responsive operationOutdoor temperature sensor ofcontrol unit for weather-responsiveoperationRemote control for programming unitHeating circuitHeating circuit pump (field supplied)DHW circulating pump (field supplied)DHW storage tankDHW tank temperature sensorExpansion tank
Please note!The use of a low-loss header isrecommended if the system water flow rateis less than 1.3 GPM / 300 ltr/h or morethan 15.4 GPM / 3500 ltr/h.The low-loss header is available asaccessory part.See page 34 in this manual for details onthe low-loss header.
Model No.
Vitodens 200,
Max. flow rate(GPM/ltr/h)
WB2 11-44 15.4/3500
WB2 15-60 15.4/3500
DHW circulating pump must pump intothe Vitodens 200 boiler (as illustrated).
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PRV
TPV
AV
Y
Y
IMPORTANT
Installation Examples
44
System Layout 7Vitodens 200 (model WB2 11-44 and up) with...
– DHW storage tank– one heating circuit with mixing valve and system separation
AV Air ventPRV Pressure relief valveTPV Temperature and pressure relief
valve
Vitodens 200 gas-fired condensingboiler with programming unit forweather-responsive operationOutdoor temperature sensor ofcontrol unit for weather-responsiveoperationRemote controlUnderfloor heating circuitMixing valve temperature sensor
F1 Heating circuit pump (field supplied)F2 Heating circuit pump (field supplied),
located upstream of heat exchanger(see Important below)Plate heat exchanger for systemseparationAccessory kit for heating circuit withmixing valve
I DHW circulating pump (field supplied)DHW storage tankDHW tank temperature sensorExpansion tank
Please note!The use of a low-loss header isrecommended if the system water flow rateis less than 1.3 GPM / 300 ltr/h or morethan 15.4 GPM / 3500 ltr/h.The low-loss header is available asaccessory part.See page 34 in this manual for details onthe low-loss header.
Model No.
Vitodens 200,
Max. flow rate(GPM/ltr/h)
WB2 11-44 15.4/3500
WB2 15-60 15.4/3500
Please note!System separation is required of underfloorheating systems employing non-oxygendiffusion barrier tubing.All components on the secondary side ofthe heat exchanger must be made ofcorrosion-resistant materials.
DHW circulation pump I must pump intothe Vitodens 200 boiler (as illustrated).
Sizing of field-supplied pump F2 is critical tothe proper boiler operation in system layout7 (above). The selected pump performancecurve must be at least equivalent to thoseshown on page 10 of this manual, or better.An undersized pump may causeshort-cycling and/or improper operation ofthe boiler. Viessmann STRONGLYrecommends using a low-loss header and aboiler pump in system layout 7 (above).
5167472v3
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PRV
TPV
AV
I
F1
F2
Y
M~
Y
IMPORTANT
IMPORTANT
Installation Examples
45
System Layout 8Vitodens 200 (model WB2 11-44 and up) with...
– DHW storage tank– low-loss header– one heating circuit with mixing valve
AV Air ventPRV Pressure relief valveTPV Temperature and pressure relief
valve
Vitodens 200 gas-fired condensingboiler with programming unit forweather-responsive operationOutdoor temperature sensor ofcontrol unit for weather-responsiveoperationRemote controlPrimary pump (boiler circuit, fieldsupplied) with low-loss header onlyUnderfloor heating circuitRadiator heating circuitMixing valve temperature sensor
H1 Heating circuit pump (field supplied)H2 Heating circuit pump (field supplied)I Accessory kit for heating circuit with
mixing valveLow-loss headerViessmann temperature sensor forlow-loss headerDHW circulating pump (field supplied)DHW storage tank
O DHW tank temperature sensorP Expansion tank
Please note!The use of a low-loss header isrecommended if the water flow rate is lessthan 1.3 GPM / 300 ltr/h or more than 15.4GPM / 3500 ltr/h.The low-loss header is available asaccessory part.See page 34 in this manual for details onthe low-loss header.
Model No.
Vitodens 200,
Max. flow rate(GPM/ltr/h)
WB2 11-44 15.4/3500
WB2 15-60 15.4/3500
The radiator heating circuit is supplied by acirculation pump (field supplied). Anexpansion board (optional) must be orderedfrom Viessmann to control this pump.The underfloor heating circuit is supplied bya circulation pump installed on site which iscontrolled by the accessory kit.The DHW circulation pump is field supplied.
Pumps and must pump into theVitodens 200 boiler (as illustrated).
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AV
TPV
PRV
OH1
H2
I
Y
M~
Y
P
Alternate locationsof expansion tank
IMPORTANT
Installation Examples
46
System Layout 9Vitodens 200 (model WB2 11-44 and up) with...
– DHW storage tank– two heating circuits with a mixing valve
AV Air ventPRV Pressure relief valveTPV Temperature and pressure relief
valve
Vitodens 200 gas-fired condensingboiler with programming unit forweather-responsive operation with2-wire BUS expansion moduleOutdoor temperature sensorRemote control for programming unitPrimary pump (boiler circuit, fieldsupplied) with low-loss header onlyUnderfloor heating circuitRadiator heating circuitMixing valve temperature sensor
H1 Heating circuit pump (field supplied)H2 Heating circuit pump (field supplied)I Accessory kit for heating circuit with
mixing valveVitotronic 050/Dekamatik-HK1 controlwith communication moduleLow-loss headerViessmann temperature sensor forlow-loss headerDHW circulating pump (field supplied)
O DHW storage tankP DHW tank temperature sensorQ Expansion tankR Vitotrol 200 remote control
Installation of different heating circuits...H radiator heating circuitH underfloor heating circuit with 3-waymixing valve (low temperature circuit)
H DHW production...with the following flow conditions1. The total flow rate of the two heatingcircuits is greater than the maximumpossible flow rate of the Vitodens 200 (seefollowing table).
Model No.
Vitodens 200,
Max. flow rate(GPM/ltr/h)
WB2 11-44 15.4/3500
WB2 15-60 15.4/3500
The use of a low-loss header is thereforerecommended.The low-loss header is available asaccessory part.See page 34 in this manual for details onthe low-loss header.
The 3-way mixing valve, built-in to achievethe low temperature level of the underfloorheating circuit, is controlled by an accessorykit for a heating circuit with mixing valve.
The underfloor and radiator heating circuitsare supplied by circulation pumps installedon site which are controlled by theaccessory kit or the Vitotronic 050/Dekamatik-HK1 control.If more than two heating circuits withmixing valves are to be connected, they canbe controlled by the Vitocontrol.Contact your local Viessmann TechnicalSales Representative for details.
The DHW circulating pump is field supplied.
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Alternate locationsof expansion tank
Installation Examples
47
System Layout 10Vitodens 200 (model WB2 11-44 and up) with...
– DHW storage tank– low-loss header– multiple heating circuits with a mixing valve
AV Air ventPRV Pressure relief valveTPV Temperature and pressure relief
valve
Vitodens 200 gas-fired condensingboiler with programming unit forweather-responsive operation andViessmann 2-wire BUS expansionmoduleOutdoor temperature sensor ofcontrol unit for weather-responsiveoperationPrimary pump (boiler circuit, fieldsupplied) with low-loss header onlyVitocontrol*1
Mixing valve temperature sensorHeating circuit pump (field supplied)Accessory kit for heating circuit withmixing valveHeating circuit with mixing valveViessmann temperature sensor forlow-loss headerLow-loss headerDHW circulating pump (field supplied)DHW tank temperature sensor
O DHW storage tankP Expansion tank
*1Contact your local Sales Representativefor details.
Pumps and must pump into theVitodens 200 boiler (as illustrated).
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When designing a system as illustrated above, please contactyour local Viessmann Sales Representative for assistance.
Y
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Alternate locationsof expansion tank
IMPORTANT
Installation Examples
48
Installation Example
Multiple Vitodens 200, WB2-44 or -60 installation (up to four boilers) with one boiler dedicated to DHW production
and one heating circuit.
This installation example depicts apossible piping layout for multipleVitodens 200 boilers equipped withViessmann System Technology. Pleasenote that this example is based on asimplified conceptual drawing only!Piping and necessary componentry mustbe field verified.A low water cut-off (LWCO) must beinstalled where required by local codes.Proper installation and functionality in thefield is the responsibility of the heatingcontractor.
* A DHW recirculation pump (#20) can beconnected to Boiler 1 only.
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Boiler2
Boiler3
Boiler4
Vitoc
ontrol-S
KM-BUSBoiler3KM-BUSBoiler2KM-BUSBoiler1
KM-BUSBoiler4
Low-lo
sshe
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DHW
tank
120V,60Hz,1PH
120V,60Hz,1PH
120V,60Hz,1PH
120V,60Hz,1PH
120V,60Hz,
1PH
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supp
ly
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tem
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20-A
20-A
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IMPORTANT
If a DHW storage tank other than aViessmann Vitocell 100 or 300 tank isused, the installer must verify properoperation of the Viessmann DHW tanktemperature sensor with the originalmanufacturer of the tank. Viessmannstrongly recommends the installation ofa temperature tempering valve in theDHW supply line.
WARNING
Installation Examples
49
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) cannot exceed 36”.-any level type shutoff used must be of tee handle type.
Boiler location
As a direct vent appliance, the Vitodens 200can be installed for room air independentoperation (sealed combustion) regardless ofsize and ventilation method of the room inwhich it is located.The Vitodens 200 can 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 PPS (Polypropylene) concentricflue gas/fresh air systems for room airindependent operation (sealed combustion)and side wall venting are tested to ANSIZ21.13 - CSA 4.9 - 2000 standards and arecertified together with the Vitodens 200boiler as a constructional unit.The Vitodens 200 boiler may also be ventedvertically, using an AL29-4C® specialstainless steel, single-wall, room airdependent venting system (UL listed forcategory IV).For a more detailed description of the directvent and single-wall vent system, pleaserefer to the Vitodens 200 Venting SystemInstallation Instructions.
Flue gas temperature protection
Flue pipes used for the Vitodens 200 aresuitable for max. flue gas temperatures ofup to 248 °F/120 °C.
No flue gas temperature protection isrequired as the maximum permissible fluegas temperature is not exceeded in anyoperating condition or in the event ofmalfunctioning.
Low water cut-off
A 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 type low watercut-off device must be provided by theheating contractor. Do not install anisolation valve between the boiler and thelow water cut-off.
System layout
H The max. boiler water temperature for ...–space heating is 167 °F/75 °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, no mixingvalves should be used in the heatingcircuit whenever possible. If mixing valvesare required, e.g. for multi-circuit systemsor underfloor heating systems, only 3-waymixing valves must be used.Do not use 4-way mixing valves withcondensing boilers.
Water connections
Vitodens 200 boilers can be used in any fullypumped 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 those commerciallyavailable corrosion protection productsapproved for boilers with domestic hotwater heating via single-wall heatexchangers (instantaneous plate heatexchangers or DHW tanks) must 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.
Underfloor heating systems and heatingcircuits containing a very large volume ofwater must be connected to the boiler via a3-way mixing valve; please refer to theapplicable installation example in thismanual.
Oxygen diffusion barrierunderfloor tubingThe 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 200 boiler.Do not use antifreeze other than specificallymade for hot water heating systems.System also may contain componentswhich might be negatively affected byantifreeze. Check total system frequentlywhen filled with antifreeze. Advise systemoperator/ultimate owner that system is filledwith 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
–combination gas valve–combustion air opening of theburner blower
– 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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Viessmann Manufacturing Company Inc.750 McMurray RoadWaterloo, Ontario • N2V 2G5 • CanadaTel. (519) 885-6300 • Fax (519) 885-0887www.viessmann.ca • [email protected]
Viessmann Manufacturing Company (U.S.) Inc.45 Access RoadWarwick, Rhode Island • 02886 • USATel. (401) 732-0667 • Fax (401) 732-0590www.viessmann-us.com • [email protected]
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