B1Ka With One Heating Circuit And Llh - Viessmann B1KA Installation And Service Instructions Manual

Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service
Installation Examples
Vitodens 100-W, B1KA 35, 125 with...
- low-loss header
- one heating circuit
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)
Heating circuit
C
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)
(continued)
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 B1KA
Output
 t
30ºF (17ºC) rise
35ºF (19.5ºC) rise
40ºF (22ºC) rise
* Requires low loss header or closely spaced tees.
Connections
35, 125
MBH 117
GPM (L/h) 7.8 (1772)*
GPM (L/h) 6.7 (1522)*
GPM (L/h) 5.9 (1328)
31