Gree GMV5E Series Service Manual page 25

GREE
No. Installation Problem
The ratio of slop for
condensate water pipe is
11 insufficient or the condensate
water pipe is incorrectly
connected.
The air channel is improperly
12
fixed.
The guide vane of air channel
13 is not reasonably
manufactured.
The refrigerant pipe or
condensate water pipe does
14
not meet the insulation
requirement.
The installation space for IDU
15
is insufficient.
The IDU or the location of the
16 air outlet or return air inlet is
not designed reasonably.
The ODU is improperly
17
installed.
Power cables are incorrectly
18
provided.
Control communication
cables are incorrectly
19
provided or improperly
connected.
Control communication
20 cables are not 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.
GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
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.
21
Possible Consequence