www.dimplex.
com.au
451903.66.18 · FD 9501
EN-7
English
HPWH 300 - HPWH 300HE
"Heating Element" switch
If there is an increase in hot water consumption or if a higher hot
water temperature (60±2°C) is desired, the “heating element”
switch can be used to switch the integrated 1.5 kW radiator on.
If the "Heating Element" switch is in the "On" position (switch lit),
approx. the upper third of the cylinder will be heated up to the
maximum temperature of the heating element controller (factory
setting 65°C); at domestic hot water temperatures > 60°C, do-
mestic hot water preparation is carried out using the heating ele-
ment only.
Note
Heating element controller
The heating element controller is a second control unit for con-
trolling the operating range of the electric heating element, which
is completely independent of the domestic hot water controller.
The factory set switch-off temperature of 65°C can be changed
by a technician (see Cap. 2.3 on pag. 3)
Sensor pipe for external temperature sensors
A vertical sensor pipe
12mm (opening in the bottom plate
sealed with a leading-in tube) for an external temperature sensor
is fitted in the rear of the domestic hot water heat pump.
Installation position of the external temperature sensor
(device cover removed in illustration)
7 Maintenance / repair
ATTENTION!
Disconnect the power supply before opening the domestic hot water heat
pump; possible fan coasting must be considered!
General
The domestic hot water heat pump is virtually maintenance free.
Furthermore, a one-off visual inspection for possible leaks in the
water system and clogging of the condensate drain must be car-
ried out a few days after commissioning.
The refrigeration circuit of the heat pump does not require main-
tenance.
Only use a damp cloth with a little soap solution to clean the do-
mestic hot water heat pump.
The installation (water and electical work) and commissioning, as
well as the maintenance of this equipment, must only be caried
out by an authorised qualified contractor in accordance with
these instructions.
NOTE
Ensure water does not come into contact with the operator controls.
Unplug the mains plug and switch off the power supply before beginning
any cleaning work.
7.1 Water circuit / condensate
drain
The water circuit check is limited to filters that may have been in-
stalled on site and possible leakages. Dirty water filters should be
cleaned and, if necessary, replaced. The seal valve in the end of
the condensate hose must only be checked for contamination,
and cleaned if necessary.
7.2 Air circuit supply
Maintenance work is limited to cleaning the evaporator on a reg-
ular basis and as required.
NOTE
Risk of injury caused by sharp-edged fins. Fins must not be deformed or
damaged!
If air filters are used, they should be regularly checked for con-
tamination and be cleaned and replaced if required.
NOTE
The PTR Valve must be discharged every six months to
check for correct operation.
