Gree LSQWRF35VM/NaA-M, Service Manual

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Unit Installation
3.2.2 Importance of installation
See the table below for problems occurred frequently and impacts.
No. Typical problems Impact
1 Inadequate space for installation
It would lead to harder maintenance, poor
ventilation, poor heat exchanging or even
abnormal operation.
2 Improper piping of the water system The unit would fail to run normally.
3 Improper cleaning for water piping
It would make foreign matters enter the
water system, which then would lead to
heavy scaling on the heat exchanger,
cracked or leaked heat exchanger.
4 Mis-wiring of power lines
It would damage the electric element and
lead to safety hazards.
5 Mis-wiring of communication lines It would lead to abnormal communication.
6
Improper protection to the
communication lines The unit would fail to run with the
communication fault.
7
Poor insulation for the chilled water
lines
Missed, cracked, unqualified insulation
and insulation with inadequate thickness
would lead to poor heat exchanging.
8
Unqualified vibration reduction
measures
Unqualified vibration reduction measures
would lead to in creased vibration and
noise, or even abnormal operation.
9
No protective sleeve for the wall-thru
water pipes Water leak would be led to by friction
between the wall-thru pipe and the wall.
10
Improper arrangement of equipment
and pipes Improper arrangement would make the
machine room look messy.
Service providers should be qualified and know special requirements on installation for certain so as to
guarantee installation quality. Otherwise, service personnel should be properly trained and licensed before
servicing.