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INSTALLATION
MOUNTING
It is recommended that the water heater is installed in
a room with existing floor drainage.
The copper-lined water heater must be installed upright
and can be aligned using the adjustable feet (UL1).
When installing, ensure that there is sufficient space for
removing the thermostat or immersion heater in front
of the junction box (approx. 400 mm).
Enclosed kit
Safety valve
Reduction from
Ø 28 to Ø 22 mm
PIPE INSTALLATION
NOTE
Fit the cover discs before the pipe installation
is made.
Pipe installation must be carried out in accordance with
current norms and directives.
The water heater is supplied with compression ring
couplings for copper or plastic pipes. Internal support
bushes must be fitted when a plastic or annealed copper
pipe is used.
ES 300 is supplied with a reduction kit from Ø 28 mm
to Ø 22 mm, which can be used if the hot water heater
is installed where a Ø 22 pipe already exists or is re-
quired.
An overflow pipe must be routed from the safety valve
to a suitable drain. The overflow pipe must be at least
the same size as the safety valve. Route the overflow
pipe from the safety valve, sloping along its entire
length, and ensure that it is frost proof. The mouth of
the overflow pipe must be visible and not placed close
to electrical components.
Ensure that incoming water is clean. When using a
private well, it may be necessary to supplement with
an extra water filter.
The following equipment must be installed on the cold
water pipe:
QM35
Shut-off valve
RM1
Non-return valve
FL1
Safety valve (supplied)
FL6
Vacuum valve
FQ1
Mixer valve (if the tap water temperature ex-
ceeds 65 °C)
NIBE ES | GB
ES 160, ES 210, ES 300
Only ES 300
When the water heater is installed without a mixer valve,
the thermostat setting must be such that the tap water
temperature does not exceed 65 °C. Should a higher
temperature be required, follow the relevant directions
for the application.
If uncertain, contact a plumber alternatively see applic-
able standards.
Filling
The water heater must be filled with water before the
mains supply is switched on. Filling takes place as fol-
lows:
• Check that the safety valve (FL1) is closed.
• Check that the drainage valve (QM3) is closed.
• Open the shut off valve by turning the knob (QM35)
anti-clockwise .
• Bleed the water heater by opening a hot water tap in
the system. This can be closed when only water
comes out of the tap. The water heater is now filled
and the power can be switched on.
Setting the mixer valve
Increase/decrease the tap water temperature by turning
the mixer valve knob (FQ1) anti-clockwise/clockwise.
Setting range approx. 40 – 65 °C.
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