Service and Parts Manual (2019, 2020, 2021, 2022)

81 PB
INSTALLATION
Checklist
Check Unit following Installation
No. Items to be checked Possible malfunction
1
Has the unit been
installed firmly?
2
The unit may drop, shake or
emit noise.
Have you done the
refrigerant leakage test?
3
It may cause insufficient cooling
(heating) capacity.
Is heat insulation of
pipeline sufficient?
4
It may cause condensation and
water dripping.
Is water drained well?
5
It may cause condensation and
water dripping.
6
It may cause malfunction or
damage the parts.
Is the voltage of power
supply according to the
voltage marked on the
nameplate?
7
Is electric wiring and
pipeline installed
correctly?
It may cause malfunction or
damage the parts.
It may cause electric leakage.
Is the unit grounded
securely?
8
Does the power cord
follow the specification?
9
It may cause malfunction or
damage the parts.
Is there any obstruction
in air inlet and air outlet?
10
It may cause insufficient cooling
(heating).
11
It may cause malfunction or
damaging the parts.
The dust and
sundries caused
during installation are
removed?
The gas valve and liquid
valve of connection pipe
are open completely?
It may cause insufficient cooling
(heating) capacity.