Heat Pump Water Heater
-
5
0 Hz (R134a)
14. Installation
31
Connecting
T&P
Relief
Valve
Discharge
Pipe
WARNING
The
pressure
rating
of
the
relief
valve
must
not
exceed
1MPa
, the
maximum
working
pressure
of
the
water
heater
as
specified
on
the
data
plate.
!
WARNING
DO NOT connect any valve or other
restriction to the T&P plumbing. DO NOT
connect the T&P plumbing to the
condensate plumbing. It must be
directly piped to an adequate open
drain.
!
Install T&P Relief Valve discharge pipe
according to local codes and the following
instructions.
- The inside diameter of the discharge pipe must
be at least 3/4“
.
- The discharge pipe must be approved for hot
water distribution and withstand
100°C
without
distortion.
1
Apply Teflon tape on the NPT end to prevent
leaking
.
2
Attach the discharge pipe to outlet of the
T&P relief valve. The discharge pipe must
pitch downward from the valve to allow
complete drainage of both T&P relief valve
and discharge pipe
.
3
The end of the discharge pipe must be
ڸ
ڹ
- The end of the discharge pipe should not be
threaded or concealed and should be
protected from freezing.
- Do not insert or install any type of valve,
restriction, or reducer coupling in the discharge
pipe.
Installing
T&P
Relief
Valve
Use
T&P
relief
valve
included
in
packing.
1
Apply Teflon tape on the
G
end to prevent
leaking
.
2
Install the T&P relief valve in the opening
marked T&P relief valve
.
piped to an adequate open drain.
