Installation Materials Selection - Gree GMV-36WL/A-T(U) Manual

DC Inverter Side Discharge VRF Ⅱ for North America
7 Refrigerant pipe exceeds the limit.
8 Incorrect amount of refrigerant is filled.
9 The refrigerant pipe leaks.
Water drainage from the condensate
10
water pipe is not smooth.
The ratio of slop for condensate water
11 pipe is insufficient or the condensate
water pipe is incorrectly connected.
12 The air channel is improperly fixed.
The guide vane of air channel is not
13
reasonably manufactured.
The refrigerant pipe or condensate
14 water pipe does not meet the
insulation requirement.
The installation space for IDU is
15
insufficient.
The IDU or the location of the air outlet
16 or return air inlet is not designed
reasonably.
17 The ODU is improperly installed.
18 Power cables are incorrectly provided.
Control communication cables are
19 incorrectly provided or improperly
connected.
Control communication cables are not
20
properly protected.
Understand the special requirement (if any) for unit installation before implementation
to ensure installation quality. Relevant installers must have corresponding engineering
construction qualifications.
Special type operators involved in the engineering implementation, such as welders,
electricians, and refrigeration mechanics must have relevant operating licenses and are
accredited with vocational qualification certification.

2 Installation Materials Selection

The materials, equipment and instruments used during air conditioning engineering
construction must have certifications and test reports.
requirements must be provided with fireproof inspection certificates and must meet
The loss in pipe is considerable and the unit energy efficiency
decreases, which are harmful for long-term running of the
system.
The system cannot correctly control the flow allocation; the
compressor may be operating under over-heating environment or
running when the refrigerant flows back to the compressor.
Insufficient refrigerant circulating in the system decreases the
cooling performance of the air conditioner. Long-term operation
under such circumstance may cause an overheating compressor
or even damage the compressor.
Residual water in IDUs can affect the normal operation of the
system. The possible water leakage can damage the IDU's
decoration.
Reverse slop or inconsistent connection of condensate water
pipe can hinder the smooth drainage and cause leakage of the
IDU.
The air channel will deform; vibration and noise occur during unit
operating.
Uneven air quantity allocation reduces the overall performance of
the air conditioner.
Water can easily condensate and drip to damage the indoor
decoration, or even trigger the protection mode of system due to
overheating operation.
Since there is a lack of space for maintenance and checking,
indoor decoration might need to be damaged during such
operation.
The air outlet or return air inlet may be short-circuited, thus
affecting the air conditioning performance.
The ODU is difficult to be maintained; unit exhaust is not smooth,
which reduces the heat exchanging performance or even prevent
the system from normal operation; in addition, the cold and hot air
for heat exchange and the noise may annoy people in
surrounding areas.
Unit components may be damaged and potential safety hazard
may occur.
The normal communication in the system fails or the control over
IDUs and ODUs turn in a mess.
The communication cables are short-circuited or disconnected,
and the unit cannot be started up due to communication failure.
66
Products with fireproof