Johnson Controls YJHJXH024BARR-FX, Service Manual

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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, 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.
Insert the cable from the back
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side of the unit, then pull it out on the front side.
Loosen the screws and insert
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the cable ends fully into terminal block, then
tighten the screws.
Pull the cable slightly to
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make sure the cables have been properly inserted and
tightened.
After the cable connection,
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never fail to fasten the connected cable with the
wiring cover.
When connecting the cable after installing the indoor unit
When connecting the cable before installing the indoor unit
Note:
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
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.
T.3.15A/250VAC (Indoor).
To Outdoor unit
AS18GS1ERA AS24GS1ERA Model
Connecting wiring
4G0.75mm
2
4G0.75mm
2
The power source must be exclusively used for air
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conditioner.
In the case of installing an air conditioner in a moist place,
ƽ please install
an ea
For installation in other places, use a circuit breaker as far
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as possible.
Pipe cutting is carried out with a pipe cutter and burs must be removed.
After inserting the flare nut, flaring work is carried out.
Power Source Installation
Cutting and Flaring Work of Piping
Flare tool for R410A Conventional flare tool
Clutch-type clutch-type(Rigid-type) Wing-nut type (Imperial-type)
A 0~0.5mm 1.0~1.5mm 1.5~2.0mm
rth leakage breaker.
Lean
Damage of flare Partial Too outside
Correct Incorrect
On Drainage
It becomes
high midway.
The gap with the
ground is too small.
There is the bad
smell from a ditch
It waves. The end is imm-
ersed in water.
Please install the drain hose so as to be downward slope without fail.
Please don’t do the drainage as shown below.
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Please pour water in the drain pan of the indoor unit, and
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is carried out surely to outdoor.
In case that the attached drain hose is in a room, please
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apply heat
insulation to
Less than
5cm
confirm that
drainage
it without fail.
Crack
Indoor unit
Check Items for Test Run
Gas leak from pipe connecting?
Heat insulation of pipe connecting?
Are the connecting wirings of indoor and outdoor firmly
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?
Please kindly explain to our customers how to
operate through the instruction manual.
inserted to the terminal block?
Ƶ
Put check mark in boxes
C o d e
in d ic a tio n
T ro u b le d e s c rip tio n A n a lyze a n d d ia g n o s e
E 1
In d o o r fa n m o to r
m a lfu n c tio n
E 2
H e a t-e xc h a n g e
s e n s o r fa ilu re
E 4
In d o o r E E P R O M
e rro r
F a u lty E E P R O M d a ta ;
F a u lty E E P R O M ;
F a u lty P C B ;
E 7
C o m m u n ic a tio n
fa u lt b e tw e e n
in d o o r a n d o u td o o r
u n its In d o o r u n it- o u td o o r u n it s ig n a l
tra n s m is s io n e rro r d u e to w irin g
e rro r;
F a u lty P C B ;
E 1 4
In d o o r fa n m o to r
m a lfu n c tio n
O p e ra tio n h a lt d u e to b re a k in g
o f w ire in s id e th e fa n m o to r;
O p e ra tio n h a lt d u e to b re a k in g
o f th e fa n m o to r le a d w ire s ;
D e te c tio n e rro r d u e to fa u lty
in d o o r u n it P C B ;
F a u lty c o n n e c to r c o n n e c tio n ;
F a u lty th e rm is to r;
F a u lty P C B ;
Flare tooling die
1.Cut pipe 2.Remove burs
3.Insert the flare nut
4.Flare pipe
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Check for Installation and Test Run
On Drainage
Introduction
4 8 Domestic air conditioner
YJHJZH024BARRAFX -SM