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When connecting the cable after installing the indoor unit
1.Insert from outside the room cable into left side of the wall hole,
in which the pipe has already existed.
2.Pull out the cable on the front side, and connect the cable
making a loop.
When connecting the cable before installing the indoor unit
●Insert the cable from the back side of the unit, then pull it out on
the front side.
●Loosen the screws and insert the cable ends fully into terminal
block, then tighten the screws.
●Pull the cable slightly to make sure the cables have been properly
inserted and tightened.
●After the cable connection, never fail to fasten the connected
cable with the wiring cover
Note:
When connecting the cable, confirm the terminal number of indoor
and outdoor units carefully. If wiring is not correct, proper operation
cannot be carried out and will cause defect.
Connecting wiring
1.If the supply cord is damaged, it must be replaced by the
manufacturer or its service agent or a similar qualified person. The
type of connecting wire is H07RN-F.
2.If the fuse on PC board is broken please change it with the type
of T.3.15A/250VAC (Indoor).
3.The wiring method should be in line with the local wiring
standard.
4.After installation, the power plug should be easily reached.
5.A breaker should be incorporated into fixed wiring. The breaker
should be all-pole switch and the distance between its two contacts
should be not less than 3mm.
Power Source Installation
5
●The power source must be exclusively used for air conditioner.
●In the case of installing an air conditioner in a moist place, please
install an earth leakage breaker.
●For installation in other places, use a circuit breaker as far as
possible.
Cutting and Flaring Work of Piping
6
●Pipe cutting is carried out with a pipe cutter and burs must be
removed.
● After inserting the flare nut, flaring work is carried out.
Flare tool
Clutch-type
clutch-type (Rigid-type)
0~0.5 mm
A
1. Cut pipe
Flare tooling die
3. Insert the flare nut
Indoor unit
To Outdoor unit
4G1.0mm²
Conventional flare tool
Wing-nut type
(Imperial-type)
1.0~1.5 mm
1.5~2.0 mm
2. Remove burs
4. Flare pipe
Correct
Damage of flare
Lean
On Drainage
7
●Please install the drain hose so as to be downward slope without
fail.
●Please don't do the drainage as shown below
It becomes high
The end is
midway.
immersed in
water
●Please pour water in the drain pan of the indoor unit, and confirm
that drainage is carried out surely to outdoor.
●In case that the attached drain hose is in a room, please apply
heat insulation to it without fail.
8
On Drainage
Code
Trouble description
indication
Room temperature sensor
E1
failure
E2
Heat-exchange sensor failure
E4
Indoor EEPROM error
Communication fault between
E7
indoor and outdoor units
E14
Indoor fan motor malfunction
9
Check for Installation and Test Run
●Please kindly explain to our customers how to operate through
the instruction manual.
Check Items for Test Run
□
Put check mark √ in boxes.
□Gas leak from pipe connecting?
□Heat insulation of pipe connecting?
□Are the connecting wirings of indoor and outdoor firmly inserted
to the terminal block?
□Is the connecting wiring of indoor and outdoor firmly fixed?
□Is drainage securely carried out?
□Is the earth line securely connected?
□Is the indoor unit securely fixed?
□Is power source voltage abided by the code?
□Is there any noise?
□Is the lamp normally lighting?
□Are cooling and heating (when in heat pump) performed
normally?
□Is the operation of room temperature regulator normal?
Incorrect
Crack
Partial
Less
than
5cm
It waves.
The gap with
There is the
bad smell from
the ground is
a ditch
too small.
Analyze and diagnose
Faulty connector connection;
Faulty thermistor;
Faulty PCB;
Faulty EEPROM data;
Faulty EEPROM ;
Faulty PCB
Indoor unit- outdoor unit signal transm ission error
due to wiring error；
Faulty PCB;
Operation halt due to breaking of w ire inside the
fan motor;
Operation halt due to breaking of the fan motor
lead wires;
Detection error due to faulty indoor unit PCB;
Too outside
EN
12
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