7
Note
Observe all information in the "safety instructions".
For further information regarding electrical connec-
tions, see page 37 onwards.
Work on the heat pump
!
Please note
Prior to commissioning and following repair or
maintenance work, check
that the heat pump is in the intended condition.
Danger
Heavy and unwieldy heat pump components
can result in life threatening crushing or break-
ages if they fall or are dropped.
■
Use suitable ropes/slings and lifting gear when
installing/dismantling compressors and heat
exchangers, for example.
■
Wear appropriate protective clothing (e.g.
safety boots) in compliance with applicable
regulations on accident prevention and in line
with trade association recommendations.
Work on the refrigerant circuit
Danger
Direct contact with refrigerant can be harmful to
the skin.
■
Only work on the refrigerant circuit whilst
wearing safety goggles and gloves.
Note
Work on the
refrigerant circuit
must only be
carried out by a qualified
refrigeration engi-
neer
.
■
Wear suitable protective clothing.
Danger
Refrigerant circuits of heat pumps develop
extremely low (
–
25 °C) and very high (+130 °C)
temperatures. Work on heat pumps can result in
life threatening frostbite and burns.
■
Switch OFF the heat pump
at least 30 min
before maintenance work.
■
Never touch the injection valve or compressor
with bare hands; wear safety gloves if contact
is necessary.
■
Wear suitable protective clothing.
Danger
Refrigerant R410A is a non-poisonous gas that
displaces air. Unregulated escape of refrigerant
R410A in enclosed spaces can result in difficul-
ties in breathing and suffocation.
■
Never breathe in refrigerant vapours.
■
Ensure adequate ventilation in enclosed
spaces.
■
Prevent open flames.
■
Observe regulations and guidelines on han-
dling this type of refrigerant.
Work on the casing
Danger
Breaking through the knockouts on the back
panel leaves behind sharp edges from the metal
retaining tabs that can lead to life threatening
injuries.
■
Finish and seal the edges appropriately before
installation.
Note
Damage to the surfaces of the casing can lead to cor-
rosion.
Safety and liability
Occupational safety
(cont.)
5837251
Information
