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HP Installation and User Instructions
R00918
-
1 03/11
Page 29
Operation
10.2 Operation
Once the system has been fully
commissioned, no user intervention
should be required to fully enjoy the
comfort and benefits of the unvented
hot water cylinder.
The hot water temperature can be set
to various requirements. For operation
with a heat pump it is recommended
to set the hot water temperature to
between 45°C and 55°C (this is
between 2 and 3 on the dial, please
refer to Figure 12 for approximate
settings). Higher temperatures can
cause tripping of the high limit
thermostat, introduce more heat loss
from the unit and increase the risk of
scalding significantly.
When turning on a hot tap for the first
time after a heat up period there
might be a short surge of water. This
is normal in unvented systems and
does not constitute a fault. Sometimes
the water may appear milky – this is
due to very fine air bubbles in the
water which will clear quickly.
10.2.1 Water temperature direct
electric heating
Before removing the cover
from the immersion heater
isolate appliance using
isolating switch! Danger of
electrical shock! Only use
suitable electrically insulated
equipment when working
inside immersion housing.
The hot water temperature achieved
by the direct electric heating element
can be adjusted by removing the
cover from the immersion heater and
adjusting the dial up or down as
indicated below.
Figure 11: Adjustment water temperature direct electric heating element
Dial to adjust water
temperature
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