20
5784 568 - 13
Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service
Boiler
Connections
(continued)
Connections
Heating water connections
1. Thoroughly flush heating system (particularly before
connecting the boiler to an existing system).
2. Connect boiler to the heating system.
Note:
Use an approved pipe sealant or teflon tape
when connecting the installation fittings.
Use a two-hand wrench method when tightening
fittings or piping onto the boiler connectors. Use
one wrench to prevent the boiler pipes from twisting
and the second wrench to tighten the fitting or
piping. Failure to support the boiler connection could
damage the boiler and its internal piping.
SUPPORT ALL PIPING USING HANGERS. DO NOT support
piping by the boiler or its components.
Use isolation valves to isolate system components.
The B1HA DHW tank heating supply and return ports
must remain capped if the DHW tank is not used.
All plumbing must meet or exceed all local state and
national plumbing codes.
WARNING
The pressure gauge is a sensitive component and may
be damaged if the boiler connections are not supported
by using a second wrench when tightening fittings
and/or piping.
IMPORTANT
Legend
A
- DHW tank heating supply for B1HA boilers
B
- DHW tank heating return for B1HA boilers
C
- DHW for B1KA boiler
D
- DCW for B1KA boiler
BWR Boiler water return
BWS Boiler water supply
BD Boiler
drain
BF Boiler
fill
GC Gas
connection
PRV Pressure relief valve
PG Pressure
gauge
VC Venting
connection
TG Temperature
gauge
DHW PRV Domestic hot water pressure relief valve (150 psi)
*
Field supplied
*
Field supplied
Note:
The B1HA DHW supply and return connections are
supplied capped. For installations that require DHW
tank connections remove caps. For installations that
do not require DHW tank connections leave caps
installed.
Max. allowable working pressure (MAWP)..3 bar (45 psig)
WARNING
Exposing the boiler to pressures and temperatures in
excess of those listed will result in damages, and will
render warranty null and void.
