Viessmann WB1A007 Technical Data Manual

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5601 189 v1.1
Vitodens 100-W, WB1B Technical Data
Model WB1B 26 35
∆ t
Output Btu/h 83,000 108,000
30° F rise (GPM) 5.5 ---
35° F rise (GPM) 4.7 6.2
40° F rise (GPM) 4.2 5.4
Maximum Flow Rates
Vitodens 100-W, WB1B 26, 35 with one heating circuit
and the CombiPLUS
Legend
AV Air vent
PRV Pressure relief valve (boiler)
PRV*Pressure relief valve (DHW 150 psi)
WSE Water softner equipment
A
Vitodens 100-W
B Room thermostat
C Heating circuit
D CombiPLUS
E Expansion tank
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.
Built-in pump residual head for the heating system
side is 7.5 ft. of water column at the boiler
maximum flow rate of 6.2 GPM.
Note: Heating circuit C in the examples should be designed
to 30º F to 40º F (16.7º C to 22.2º C). For lesser
delta T design, system layout designer must use
one of the examples (5 or 6) on the following pages.
System Layout 4
Installation

Viessmann WB1A007 Specifications

General

Brand	Viessmann
Model	WB1A007
Category	Boiler
Language	English