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Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service
Connections
Installation Examples
(continued)
Vitodens 100-W, B1KA 35, 125 with...
- low-loss header
- one heating circuit
Maximum Flow Rates
Legend
AV Air vent
PRV Pressure relief valve (boiler)
DPRV Pressure relief valve (DHW 150 psi)
WSE Water softener equipment
DHW Domestic hot water
DCW Domestic cold water
A
Vitodens 100-W gas-fired condensing boiler
B
External boiler / system controller with room
thermostat connection (field supplied)
C
Heating circuit
D
Heating circuit pump (field supplied)
E
Low-loss header (there is no LLH temperature
sensor available for the B1KA)
F
Outdoor temperature sensor (OTS)
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.
Model B1KA
35, 125
Output MBH
117
t
30ºF (17ºC) rise GPM (L/h)
7.8 (1772)*
35ºF (19.5ºC) rise GPM (L/h)
6.7 (1522)*
40ºF (22ºC) rise GPM (L/h)
5.9 (1328)
* Requires low loss header or closely spaced tees.