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5601 189 v1.1
Vitodens 100-W, WB1B Technical Data
Vitodens 100-W, WB1B 26, 35 with one heating circuit
(without optional CombiPLUS)
System Layout 1 (alternate option)
Legend
AV Air vent
PRV Pressure relief valve
A
Vitodens 100-W
B Room thermostat
C Heating circuit
D Heating circuit pump (field supplied)
E Expansion tank
F Pressure Activated By-Pass
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
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.
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 (3 or 4) on the following pages.
Maximum Flow Rates
Ensure that a pressure activated by-pass is installed if
there are system component(s) in C that may isolate the
flow to the pump D.
IMPORTANT
System Layout 1
Installation
AV
PRV
AV
PRV
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