Haier HSU109VHG-G Service Manual page 67

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 can not
be carried out and will cause defect.
HSU09VHG(DB)-G
HSU12VHG(DB)-G
Model HSU18VHG(DB)-G
HSU24VHG(DB)-G
HSU109VHG-G
4G0.75mm
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
H05RN-F or 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
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 ea rth leakage breaker.
For installation in other places, use a circuit breaker as far as possible.
Cutting and Flaring Work of Piping
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 for R410A
Clutch-type clutch-type(Rigid-type) Wing-nut type (Imperial-type)
A 0~0.5mm 1.0~1.5mm
Flare tooling die
3.Insert the flare nut
Indoor unit
To Outdoor unit
2
Conventional flare tool
1.5~2.0mm
1.Cut pipe 2.Remove burs
4.Flare pipe
Correct
Lean
Damage of flare
On Drainage
Please install the drain hose so as to be downward slope without fail.
Please don't do the drainage as shown below.
It becomes
The end is imm- It waves.
high midway.
ersed in water.
Please pour water in the drain pan of the indoor unit, and
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.
On Drainage
C ode
T rouble description
indic ation
Indoor fan m otor
E 1
m alfunc tion
H eat-exc hange
E 2
sensor failure
Indoor E E P R O M
E 4
error
C om m unic ation
fault betw een
E 7
indoor and outdoor
units
Indoor fan m otor
E 14
m alfunc tion
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
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?
Installation
Incorrect
Crack Partial Too outside
Less than
5cm
The gap with the There is the bad
ground is too small. smell from a ditch
confirm that
A nalyze and diagnose
F aulty connector c onnection;
F aulty therm istor;
F aulty P C B ;
F aulty E E P R O M data;
F aulty E E P R O M ;
F aulty P C B ;
Indoor unit- outdoor unit signal
tra n s m is s io n e rror du e to w irin g
error;
F aulty P C B ;
O peration halt due to breaking
of w ire inside the fan m otor;
O peration halt due to breaking
of the fan m otor lead w ires;
D etection error due to faulty
indoor unit P C B ;
in boxes
Domestic Air Conditioner