Technical Data Manual Model Nos. and pricing: see Price List Vitodens 100-W WB1B Series Wall-Mounted, gas-fired condensing boiler with optional on demand hot water CombiPLUS Kit Heating input: 37 to 118 MBH 10.8 to 34.
General Vitodens 100-W, WB1B Technical Data Product Information The benefits at a glance: Outstanding efficiency of 94.0 % A.F.U.E. on all models. Lasting performance with Viessmann-made SA240 316Ti stainless steel Inox-Radial heat exchanger constructed to ASME Section IV and CSA B51. Low-emission with fully-modulating stainless steel MatriX cylinder burner. Factory calibration eliminates adjustments in the field.
General Vitodens 100-W, WB1B Technical Data Product Information Boiler cross-section Legend A Stainless steel MatriX cylinder burner B Inox-Radial stainless steel heat exchanger C Burner blower D Gas and hydronic connections E Boiler control Standard Equipment: Wall-mount boiler and installation fittings c/w 30 psi pressure relief valve, pressure gage, gas shut-off valve, two fill/drain valves, all mounting hardware, outdoor temperature sensor, and LP conversion kit.
Technical Data Vitodens 100-W, WB1B Technical Data Specifications Standard heating boiler Boiler Model No. WB1B 26 WB1B 35 MBH kW MBH kW MBH 37-91 10.8-26.7 34-83 9.9-24.3 72 37-118 10.8-34.6 34-108 9.9-31.6 94 ft.2 m2 10.23 0.95 10.23 0.95 Min. gas supply pressure Natural gas LPG “w.c. “w.c. 4 10 4 10 Max. gas supply pressure 3 Natural gas and LPG “w.c. 14 14 Natural gas and LPG CSA input CSA output/DOE 1 heating capacity Net I=B=R rating 2 Heat exchanger surface area % 94.0 94.
Technical Data Vitodens 100-W, WB1B Technical Data Specifications (continued) Standard heating boiler (continued) Gas supply connection Boiler Model No. WB1B 26 WB1B 35 NPTF (female)” c c ºF (ºC) ºF (ºC) 127 (53) 90 (32) 131 (55) 90 (32) ºF (ºC) 167 (75) 172 (78) lbs/h kg/h lbs/h kg/h 79.2 36.0 33.0 15.0 100.1 45.5 33.0 15.0 Pa mbar 100 1.0 100 1.0 ºF (ºC) 230 (110) 230 (110) USG/day L/day 1.95-2.3 8-9 2.5-2.8 9.4-10.
Technical Data Specifications Vitodens 100-W, WB1B Technical Data (continued) Boiler Model No. WB1B 26 WB1B 35 DHW supply temperature ºF (ºC) 140 (60) 140 (60) Continuous draw rate 1 with DCW temp.
Dimensions Vitodens 100-W, WB1B Technical Data Boiler Dimensions Without Bottom Piping Connections Front view Side view Top view Connections Vitodens 100-W, WB1B 26, 35 Legend Connections A B C D E F Condensate drain, plastic hose Ø 0.
Dimensions Vitodens 100-W, WB1B Technical Data Boiler Dimensions With Piping Connections Piping connections for Vitodens 100-W, WB1B 26 and 35 (factory supplied) Legend BWR BWS BD BF GC PRV PG VC CAI Boiler water return, ¾” Boiler water supply, ¾” Boiler drain Boiler fill Gas connection, ¾” NPTM (male thread) Pressure relief valve Pressure gage Venting connection Combustion air inlet connection (optional) 8 5601 189 - 01 Note: If using the optional CombiPLUS see page 9.
Dimensions Vitodens 100-W, WB1B Technical Data CombiPLUS Dimensions and Piping Connections CombiPLUS Connections Front view Side view with 7” flex pipes Top view Legend 5601 189 - 01 A B C D E F Boiler water supply, NPTM ¾” (male thread) Boiler water return, NPTM ¾” (male thread) System water supply, NPTM ¾” (male thread) System water return, NPTM ¾” (male thread) DHW, NPTM ½” (male thread) DCW, NPTM ½” (male thread) A B C E F D Front view 9
Dimensions Vitodens 100-W, WB1B Technical Data Boiler Minimum Clearances Recommended minimum boiler service clearances Recommended minimum boiler and CombiPLUS Kit clearances to combustibles Top Side 0 Top Front Back Front 0 AL, CL Rear Left Right 0 0 0 Vent pipe*1 0 AL = Alcove CL = Closet *1 Refer to the Installation Instructions of the Vitodens Venting System for details.
Operation Vitodens 100-W, WB1B Technical Data Heating Circuit Pumps Waterside Flow (boiler circuit) Heating circuit pumps (field supplied) The Vitodens 100-W is designed only for closed loop, forced circulation hot water heating systems. Recommended heating pumps with Vitodens 100-W, WB1B 26, 35 (without an optional CombiPLUS). Pressure drop (primary circuit) of Vitodens 100-W ft.
Operation Vitodens 100-W, WB1B Technical Data Heating Circuit Pumps (continued) CombiPLUS built-in pump Grundfos UPS15-78 three speed heating circuit/DHW production pump for Vitodens 100 WB1B 26, 35 boilers (in the factory setting, the pump speed is preset to ‘speed three’) Head H (ft of wc) Speed Three Speed Two Speed One Flow Q (gpm) Performance chart courtesy of Grundfos Pump Model Grundfos UPS15-78 Rated voltage Rated current VAC A max. A min. Capacitor F W max. W min.
Operation Vitodens 100-W, WB1B Technical Data Heating Circuit Pumps (continued) DHW Production Planning With the CombiPLUS for instantaneous DHW heating or with DHW connections for DHW production via a stand-alone DHW storage tank, the Vitodens 100 boiler series offers the right solution for every need.
Operation Vitodens 100-W, WB1B Technical Data Heating Circuit Pumps (continued) Domestic Hot Water Production via Instantaneous DHW Plate Heat Exchanger (CombiPLUS) The CombiPLUS is equipped with an electronically controlled instantaneous DHW plate heat exchanger. The comfort control function (if selected) ensures that the instantaneous DHW plate heat exchanger is kept warm. This translates into immediate availability of domestic hot water at any required temperature level.
Installation Vitodens 100-W, WB1B Technical Data Mounting Domestic Hot Water Production via DHW Storage Tank Wall Mounting Information Vitodens 100-W boilers can be used in conjunction with the stand-alone DHW storage tanks offered by Viessmann (a separate DHW controller should be field supplied). All Viessmann DHW storage tanks sold in North America are available in “Vitosilver” finish only. Size and select the DHW storage tank based on the forecast DHW consumption of the building in question.
Installation Vitodens 100-W, WB1B Technical Data Condensate Condensate Connection Install the condensate drain pipe (Ø 7/8” / 22 mm) with a suitable gradient (min. 2.5%). Discharge condensate from the boiler into the drainage system, either directly or (if required) via a neutralization unit (accessory).
Installation Vitodens 100-W, WB1B Technical Data Venting Options / Electrical Connections Vitodens 100-W Venting Options For detailed information refer to the Vitodens Venting System Installation Instructions. Electrical Connection All electrical connections are made to the boiler’s integrated power pump module (120 VAC/60 Hz). Use disconnect means and power service switch as per local code requirements. Control Unit Function and construction: The control is integrated into the Vitodens 100-W boiler.
Installation Vitodens 100-W, WB1B Technical Data Accessories Accessories for the Vitodens 100-W Neutralization Unit for Single-Boiler Applications with neutralizing granulate for Vitodens 100-W, WB1B 26, 35 Part No. 7134 231 Vprimary Vbypass Vsecondary Low-Loss Header - Type 80/50, Part No. 7134 791 [max. flow rate 17.6 GPM (4 m3/h)] - Type 120/80, Part No. 7134 792 [max. flow rate 35.2 GPM (8 m3/h)] A low-loss header offers additional benefits not provided by a pair of closely spaced tees.
Installation Vitodens 100-W, WB1B Technical Data Standard Equipment Standard Equipment The Vitodens 100-W gas-fired condensing boiler with Inox-Radial heat exchanger surfaces, modulating stainless steel MatriX cylinder gas burner c/w: installation fittings with 30 psig pressure relief valve, air vent and pressure gauge two fill/drain valves all mounting hardware The boiler comes fully piped and pre-wired. Venting material (coaxial) or single pipe PP(s) is to be supplied by Viessmann only.
Installation Vitodens 100-W, WB1B Technical Data System Layout 1 Vitodens 100-W, WB1B 26, 35 with one heating circuit (without optional CombiPLUS) AV PRV Maximum Flow Rates Model WB1B t Output Btu/h 30° F rise (GPM) 35° F rise (GPM) 40° F rise (GPM) 26 35 83,000 5.5 4.7 4.2 108,000 --6.2 5.4 Note: The use of a low-loss header is recommended if the water flow rate is less than 1.7 GPM (400 L/h) or more than 6.2 GPM (1400 L/h). The low-loss header is available as accessory part.
Installation Vitodens 100-W, WB1B Technical Data System Layout 2 Vitodens 100-W, WB1B 10-26, 10-35 with... DHW storage tank low-loss header one heating circuit IMPORTANT Primary pump must pump into the boiler (as illustrated). Note: The use of a low-loss header is recommended if the water flow rate is less than 1.7 GPM (400 L/h) or more than 6.2 GPM (1400 L/h). The low-loss header is available as accessory part.
Installation Vitodens 100-W, WB1B Technical Data System Layout 3 Vitodens 100-W, WB1B 10-26, 10-35 with DHW storage tank and one heating circuit IMPORTANT Primary pump must pump into the boiler (as illustrated). Note: The use of a low-loss header is recommended if the water flow rate is less than 1.7 GPM (400 L/h) or more than 6.2 GPM (1400 L/h). The low-loss header is available as an accessory part.
Installation Vitodens 100-W, WB1B Technical Data System Layout 4 Vitodens 100-W, WB1B 26, 35 with one heating circuit and the CombiPLUS Maximum Flow Rates Model WB1B t Output Btu/h 30° F rise (GPM) 35° F rise (GPM) 40° F rise (GPM) 26 35 83,000 5.5 4.7 4.2 108,000 --6.2 5.4 Note: The use of a low-loss header is recommended if the water flow rate is less than 1.7 GPM (400 L/h) or more than 6.2 GPM (1400 L/h). The low-loss header is available as accessory part.
Installation Vitodens 100-W, WB1B Technical Data System Layout 5 Vitodens 100-W, WB1B 10-26, 10-35 with... CombiPLUS Kit low-loss header one heating circuit Note: The use of a low-loss header is recommended if the water flow rate is less than 1.7 GPM (400 L/h) or more than 6.2 GPM (1400 L/h). The low-loss header is available as accessory part. Maximum Flow Rates Model WB1B t Output Btu/h 30° F rise (GPM) 35° F rise (GPM) 40° F rise (GPM) 26 35 83,000 5.5 4.7 4.2 108,000 --6.2 5.
Installation Vitodens 100-W, WB1B Technical Data System Layout 6 Vitodens 100-W, WB1B 10-26, 10-35 with CombiPLUS and one heating circuit without LLH Note: The use of a low-loss header is recommended if the water flow rate is less than 1.7 GPM (400 L/h) or more than 6.2 GPM (1400 L/h). The low-loss header is available as an accessory part. Maximum Flow Rates Model WB1B t Output Btu/h 30° F rise (GPM) 35° F rise (GPM) 40° F rise (GPM) 26 35 83,000 5.5 4.7 4.2 108,000 --6.2 5.
Design Vitodens 100-W, WB1B Technical Data System Design Considerations Boiler location As a direct vent appliance, the Vitodens 100-W may be installed for room air independent operation (sealed combustion) regardless of size and ventilation method of the room in which it is located.
Design Vitodens 100-W, WB1B Technical Data System Design Considerations (continued) Oxygen diffusion barrier underfloor tubing The boiler warranty does not cover leaks resulting from corrosion caused by the use of underfloor plastic tubing without an oxygen diffusion barrier. Such systems must have the non-oxygen diffusion barrier tubing separated from the boiler with a heat exchanger. Viessmann recommends the use of underfloor plastic tubing with an oxygen diffusion barrier.
Venting Vitodens 100-W, WB1B Technical Data Coaxial System Intake Flue Intake Coaxial, horizontally vented, PP(s) (Viessmann supplied) Vent system diameter (mm) 60/100 80/125 100/150 Maximum equivalent length ft. (m) 82 (25) 98 (30) 118 (36) Flue Intake Intake 28 Vent system diameter (mm) 60/100 80/125 100/150 Maximum equivalent length ft.
Venting Vitodens 100-W, WB1B Technical Data Two Pipe System Two pipe system (room air independent) horizontally vented Vent system diameter (in) Maximum equivalent length ft.
Venting Vitodens 100-W, WB1B Technical Data Single Pipe System Intake Intake Flue Single pipe system (room air dependant) horizontally vented Vent system diameter (in) 2* 3 Maximum equivalent 86 (20) 164 (50) length ft. (m) *stainless steel is not available in 2” 4 200 (61) CPVC and stainless steel (field supplied) PP(s) (Viessmann supplied) Flue Single pipe system (room air dependant) vertically vented Vent system diameter (in) 2* 3 Maximum equivalent 86 (20) 164 (50) length ft.
Venting Vitodens 100-W, WB1B Technical Data Flexible System Flue Flexible two pipe system (room air independent) Vent system diameter (in) 80 flex 2” comb. 80 100 Maximum equivalent length ft. (m) 65 (20) 123 (37) 150 (46) Combustion air: CPVC, PVC, ABS and stainless steel (field supplied) Flue gas: PP(s) (Viessmann supplied) Intake Flue Flexible single pipe system (room air dependant) Vent system diameter (in) 80 100 Maximum equivalent length ft.
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