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■
it is required to remove the front decoration panel of the
domestic hot water tank module,
(to take away the front decoration panel, remove the 2 bottom
screws and then unhitch the panel.)
12.1. Maintenance activities
DANGER: ELECTRIC SHOCK
■
Before carrying out any maintenance or repair activity,
always switch off the circuit breaker on the supply
panel, remove the fuses or open the protection
devices of the unit.
■
Do not touch live parts for 10 minutes after the power
supply is turned off because of high voltage risk.
■
Please note that some sections of the electric
component box are hot.
■
Make sure you do not touch a conductive section.
■
Do not rinse the unit. This may cause electric shocks
or fire.
NOTICE: Play it safe!
Touch a metal part by hand (such as the stop valve) in
order to eliminate static electricity and to protect the PCB
before performing service.
Installation manual
24
12.2. Checks
The described checks must be executed at least once a year by
qualified personnel.
1
2
3
4
2x
Field supplied pressure relief valve
■ Check for correct operation of the pressure relief valve.
■ Check that the connected discharge piping still complies to
requirements stated in the chapter
relief valve (field supply) and drain" on page
If a field supplied pressure reducing valve is installed
Depending on local water conditions, annual inspection of the
valve may be necessary
If a field supplied expansion relief valve or expansion vessel is
installed
Depending on local water conditions, annual inspection of the
valve or expansion vessel may be necessary.
Indoor unit switchbox
■ First remove the front decoration panel of the heat pump
module and then the front panel of the tank module.
2
1
■ Carry out a thorough visual inspection of the switch box and
look for obvious defects such as loose connections or
defective wiring.
"Connect the pressure
11.
2x
2x
EKHVWQ002AAV3 + EKHHS200+260AA1V3
Domestic hot water heat pump
4PW65342-1A – 10.2010
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