EKHBH/X008BA
Indoor unit for air to water heat pump system
4PW54185-1B
Installation manual
9
O
VERVIEW
OF
THE
INDOOR
UNIT
Opening the indoor unit
■
The front flap on the indoor unit cover gives access to the
manometer and user interface.
■
The indoor unit cover can be removed by removing the 2 bottom
screws and unhitching the cover.
■
To gain access to the switch box components – e.g. to connect
the field wiring – the switch box service panel can be removed.
Thereto, loosen the front screws and unhitch the switch box
service panel.
Make sure to fix the cover with the screws when installing
the cover (screws are delivered as accessory).
Parts inside the unit can be hot.
WARNING
■
Switch off all power supply – i.e. outdoor unit power
supply and backup heater and domestic hot water
tank power supply (if applicable) – before removing
the switch box service panel.
■
Do not touch the refrigerant pipes during and
immediately after operation as the refrigerant pipes
may be hot or cold, depending on the condition of the
refrigerant flowing through the refrigerant piping,
compressor, and other refrigerant cycle parts. Your
hands may suffer burns or frostbite if you touch the
refrigerant pipes. To avoid injury, give the pipes time to
return to normal temperature or, if you must touch
them, be sure to wear proper gloves.
■
Do not touch the internal parts (pump, backup heater,
etc.) during and immediately after operation.
Your hands may suffer burns if you touch the internal
parts. To avoid injury, give the internal parts time to
return to normal temperature or, if you must touch
them, be sure to wear proper gloves.
DANGER
■
Do not touch water pipes during and immediately after
operation as the pipes may be hot. Your hand may
suffer burns. To avoid injury, give the piping time to
return to normal temperature or be sure to wear
proper gloves.
■
When service panels are removed, live parts can be
easily touched by accident.
Never leave the unit unattended during installation or
servicing when the service panel is removed.
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