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6167 818 - 10
Vitodens 100-W, B1HE/B1KE Combi Installation/Service
Installation
Safety Valve
Legend
A
Safety valve
B
Brass adapter
C
Retaining clip
D
Cable ties
E
Pressure gauge
Legend
A
Ceiling bracket (field supplied)
B
Wall mounting bracket (field supplied)
C
Drain pipe (field supplied)
Fit the safety valve:
1. Install safety valve
A
onto brass adapter
B
and tighten.
2. Screw pressure gauge
E
onto brass adapter
B
.
3. Fit brass adapter
B
to the boiler with retaining clip
C
.
Secure retaining clip
C
with cable tie
D
.
The boiler water pressure reading is displayed on an
analog gauge.
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.
1. Install discharge pipe on pressure relief valve in such
a way that...
- the end of the pipe is not threaded.
- the pressure relief discharge pipe extends to a
floor drain and ends approximately 6 in. (150 mm)
above the drain.
Ensure
that...
- there is no shutoff valve installed in the discharge pipe.
- discharge pipe diameter is not reduced.
- discharge is not piped to outdoors.
Minimum connection diameters:
Pressure relief valve .............................................. ¾ in.
Discharge pipe ..................................................... ¾ in.
Install the (approved) factory supplied pressure relief valve.
Removal of air from the system must occur via use of air
vent(s) in the system supply. To ensure the boiler can be
purged of all air, ensure supply/return water lines do not
contain restrictive piping where air could be trapped.
IMPORTANT
WARNING
Do not install an isolation valve between boiler and
pressure relief valve.
The discharge pipe for the pressure relief valve must
be oriented to prevent scalding of attendants.
Pipe pressure relief valve discharge pipe close to floor
drain. Never pipe discharge pipe to the outdoors.
IMPORTANT
The pressure relief valve discharge pipe
C
must be
supported using either a ceiling mounted support
A
or
a wall mounted support
B
. Piping must be install free
of stress.