33
6167 818 - 10
Vitodens 100-W, B1HE/B1KE Combi Installation/Service
Vitodens 100-W, B1HE 85, 120, 150, 199 with
- DHW storage tank
- one heating circuit
connected directly to the boiler
Legend
PRV Pressure relief valve
TPV Temperature and pressure relief valve
A
Vitodens 100-W gas fired condensing boiler
B
External boiler controller with room thermostat
connection (field supplied)
C
Heating
circuit
D
Expansion
tank
E
DHW storage tank
F
DHW tank temperature sensor (or DHW temperature
switch)
G
Outdoor temperature sensor
Note:
Refer to the residual head curves on page 32.
The use of a low-loss header is recommended if
the water flow rate is above or below the operating
range.
The low-loss header is available as accessory part.
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
.
IMPORTANT
System Layout 1
Model B1HE
85
120
150
199
Output MBH
80
113
141
187
t
30ºF (17ºC) rise GPM (L/h)
5.3 (1204)*
7.5 (1703)*
9.4 (2135)*
12.5 (2839)*
35ºF (19.5ºC) rise GPM (L/h)
4.6 (1045)
6.5 (1476)*
8.1 (1840)
10.7 (2430)*
40ºF (22ºC) rise GPM (L/h)
4.0 (908)
5.7 (1295)
7.1 (1613)
9.4 (2135)
* Requires low loss header or closely spaced tees.
Installation