background image

Indoor unit

Fix to side bar and lintel a mounting bar, Which is separately sold, and then

fasten the plate to the xed mounting bar.

Refer to the previous article, “ When the mounting plate is

position of wall hole.

M

Wall hole

ake a hole of 60 mm in diameter, slightly descending to outside the wall.

Install piping hole cover and seal it off with putty after installation

When the mounting plate is rst xed

1. Carry out, based on the neighboring pillars or lintels, a 

to be xed against the wall, then temporarily fasten the plate with one steel nail.

2. Make sure once more the proper level of the plate, by hanging a thread with a

weight from the central top of the plate, then fasten securely the plate with the
attachment steel nail.

3. Find the wall hole location  A  using  a  measuring tape

When  the mounting plate is xed side bar and lintel

Indoor side

Outdoor side

1

Fitting of the Mounting Plate and Positioning of the wall Hole

(Section of wall hole)

 Piping hole pipe

Lid for right
piping

Lid for under piping pipe

Fix with adhesive tape

Lid for left piping

Heat insulation
material

Drain hose

Piping

Pipe supporting
plate

Indoor/outdoor electric cable

Indoor/outdoor electric cable and drain hose must be bound with refrigerant

piping by protecting tape.

[ Other direction piping ]

Cut away, with a nipper, the lid for piping according to the piping direction and

then bend the pipe according to theposition of wall hole. When bending, be

careful not to crash pipes.

Connect beforehand the indoor/outdoor electric cable, and then pull out the

connected to the heat insulation of connecting part specially.

proper leveling for the plate

rst xed “, for the

2

Making a Hole on the Wall and Fitting the Piping Hole Cover

G

Drawing of pipe

3

Installation of the Indoor Unit

[ Rear piping ]

Draw pipes and the drain hose, then fasten them with the adhesive tape

[ Left

·

Left-rear piping ]

In case of left side piping, cut away, with a nipper, the lid for left piping.

In case of left-rear piping, bend the pipes according to the piping direction to

the mark  of  hole for left-rear piping which is marked on heat insulation materials.

1. Insert the drain hose into the dent of heat insulation materials of indoor unit.

2. Insert the indoor/outdoor electric cable from backside of  indoor unit, and pull it

out on the front side, then connect them.

3. Coat the aring seal face with refrigerant oil and connect pipes.

Cover the connection part with heat insulation materials closely, and make sure

xing with adhesive tape

Fixing the indoor unit body

Hang surely the unit body onto the upper notches of the

mounting plate. Move the body from side to side to verify its
secure xing.

In order to x the body onto the mounting plate,hold up

the body aslant from the underside and then put it down
perpendicularly.

4

Connecting the indoor/outdoor Electric Cable

Remove terminal cover at right bottom corner of indoor unit, then take off wiring

cover by removing its screws.

Insert from outside the room cable into left side of the wall

pipe has already existed.

Pull out the cable on the front side, and connect the cable making a loop.

Note

When connecting the cable, con rm 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 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.

mounting plate

When you unload the indoor unit,please use 

then lift the bottom of the body outward
slightly and lift the unit aslant until it
leaves the mounting plate. 

agraffe

mounting plate

Unloading of indoor unit body

your hand to arise the body to leave agraffe,

NOTE

The thickness  of  the pipe must be 0.8mm  at  least.

Selection of pipe

Liquid pipe (

)

Gas pipe   (    )

For    12/18K

For    24K

12.7mm(1/2")

6.35mm(1/4")

15.88mm(5/8")

9.52mm(3/8")

hole, in which the

A=113mm

B=

30mm

Pay attention to the following points before installation 
of machine: 

1. Take out cushion blocks on 
    the left and right angle beads 
    as shown in the following 
    Figure. 

2. Remove 2 gaskets under the 
    cross-flow fan.

3. Clean the burr on the surface of fracture to avoid the power 
    wire from being scratched after removing the virtual opening 
    of the outgoing line slot on the case by hands in indoor 
    power-on process.

Floor fixing dimensions

of the outdoor unit

(Unit:mm)

140

500

140

0

6

2

<+)<+%$+$;

24K

18K

12K

<+)<+%$+$;
<+)<+%$+$;

Floor fixing dimensions

of the outdoor unit

(Unit:mm)

184.3

580

184.3

0

8

3

A=120mm

B=

30mm

A=41mm

20mm

% ĭPP

Installations

13

Summary of Contents for YH9FYH24BAH-A-X

Page 1: ...SERVICE MANUAL High Wall Fixed R 410A 60Hz YH9FYH24BAH A X Read this manual before installation and operation Make sure that it is well kept for later reference ...

Page 2: ...on 1 2 Specifications 7 3 Sensors list 8 4 Piping diagrams 9 5 Operation range 10 6 Wiring diagrams 7 Dimensional drawings 8 CHnter of gravity 9 Installations 10 Service Diagnosis 11 Performance and cXrves diagrams 11 21 17 13 12 12 ...

Page 3: ...ling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas discharges during the repair work do not touch the discharging refrigerant gas The refrig...

Page 4: ...n enclosed room can cause oxygen deficiency 1 1 2 Cautions Regarding Products after Repair Warning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools can cause an electrical shock excessive heat generation or fire When relocating the equipment make s...

Page 5: ...cable can cause an electrical shock or fire Placing heavy items on the power cable and heating or pulling the power cable can damage the cable Do not mix air or gas other than the specified refrigerant R 410A R22 in the refrigerant system If air enters the cooling system an excessively high pressure results causing equipment damage and injury If the refrigerant gas leaks be sure to locate the leak...

Page 6: ...l shock or fire If the power cable and lead wires have scratches or deteriorated be sure to replace them Damaged cable and wires can cause an electrical shock excessive heat generation or fire Warning Do not use a joined power cable or extension cable or share the same power outlet with other electrical appliances since it can cause an electrical shock excessive heat generation or fire Caution Che...

Page 7: ...f the reader to specific information The meaning of each icon is described in the table below 1 2 5 Using Icons List Icon Type of Information Description Note Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Caution Caution A caution is used when there is danger that the reader through incorrect manipulation may damag...

Page 8: ...evel B d r e w o p d n u o S ELECTRICAL SPECIFICATIONS g n i t a e h g n i l o o c 10 9 A t n e r r u c g n i n n u r l a n i m o N Maximum running current A 14 6 TECHNICAL SPECIFICATIONS PARTS g n i t a e h g n i l o o c Compressor r o s s e r p m o C y r a t o R e p y T ASH232SN l e d o M 2350 W t u p t u o r o t o M Oil type HAF68D1 or equivalent L e m u l o v e g r a h c l i O Fan n a f l a i ...

Page 9: ...erence m 15 Chargeless m Amount of Additional Charge of Refrigerant g m Note the data are based on the conditions shown in the table below h t g n e l g n i p i P g n i t a e h g n i l o o c Indoor WB Outdoor WB 3 Sensors list type Description Qty 1 i t c e t e d r o f d e s u s t I r o s n e s t n e i b m A e d i s r o o d t u o f o e r u t a r e p m e t g n Suction sensor Its used for detecting ...

Page 10: ...Piping diagrams 8 ...

Page 11: ...Operation range 9 ...

Page 12: ...Wiring diagrams 6 Wiring diagrams 10 ...

Page 13: ...Dimensinal drawings 7 Dimensional drawings 8 Center of gravity 730mm 308mm 810mm 860mm 308mm 860mm 730mm 308mm 338 3mm 284 8mm 113 7mm 11 ...

Page 14: ... wall place where the indoor unit can receive signals when the uorescent lamps in the room are lightened Outdoor Unit Place which is less affected by rain or direct sunlight and is suf ciently ventilated Place possible to bear the unit where vibration and noise are not increased Place where discharged wind and noise do not cause a nuisance to the neighbors Place where a distance marked is availabl...

Page 15: ... unit and pull it out on the front side then connect them 3 Coat the aring seal face with refrigerant oil and connect pipes Cover the connection part with heat insulation materials closely and make sure xing with adhesive tape Fixing the indoor unit body Hang surely the unit body onto the upper notches of the mounting plate Move the body from side to side to verify its secure xing In order to x th...

Page 16: ...orm air purging from the refrigerant pipes and indoor unit using a vacuum pump then Spanner Forced fastening without careful centering may damage the threads and cause a leakage of gas Pipe Diameter Fastening torque Liquid side6 35mm 1 4 18N m Liquid Gas side9 52mm 3 8 42 N m Gas side 12 7mm 1 2 55N m Gas side 15 88mm 5 8 60 N m Max Elevation In case the elevation A is more than 5m oil trap shoud ...

Page 17: ...type Imperial type A 0 0 5mm 1 0 1 5mm 1 5 2 0mm rth leakage breaker 4 Flare pipe Lean Damage of are Crack Partial Too outside t c e r r o c n I t c e r r o C On Drainage It becomes high midway The gap with the ground is too smal 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 drain...

Page 18: ...port pressure and operating current Check for insufficient gas Large operating noise and vibrations Check the installation condition Check to make sure that the required spaces for installation specified in the Technical Guide etc are provided 10 Service Diagnosis Service diagnosis 16 10 2 Parameter of primary electronic appliance Picture Parameter Name NO 1 Rated voltage 208 230V 2 Compressor Rat...

Page 19: ...e sensor failure Method of The temperatures detected by the thermistors are used to determine thermistor errors Malfunction Detection Malfunction when the thermistor input is more than 4 92V or less than 0 08V during compressor n o i t a r e p o n o i s i c e D Conditions Note The values vary slightly in some models Supposed Ŷ Faulty connector connection Causes Ŷ Faulty thermistor Ŷ Faulty PCB Tro...

Page 20: ... to turn off power switch before connect or disconnect connector or parts damage may be occurred 10 3 3 Indoor AC fan motor malfunction Indoor Display E14 Method of The rotation speed detected by the Hall IC during fan motor operation is used to determine Malfunction abnormal fan motor operation Detection Malfunction when the detected rotation feedback signal don t received in 2 minutes Decision C...

Page 21: ...5 on the indoor PCB the voltage is about 90 220vac check whether motor can run when turn on the unit the indoor motor is damaged and need replace Yes Measure whether there is voltage pulse 0 5VDC between the positions middle wire and black wire of Terminal CN2 on the indoor PCB the indoor pcb is damaged and need replace Pull out the terminals on the indoor mainboard and reinsert them Is it ok ...

Page 22: ... 25 18ć 5423 5273 8647 8153 7394 7005 6771 5062 27 19ć 5574 5373 8812 8400 7628 7238 6927 5182 30 22ć 5925 5875 9470 9059 8328 8017 7783 5845 32 23ć 5976 5925 9635 9223 8484 8095 7861 5905 32 24ć 6076 6026 9800 9388 8639 8250 8017 6026 outdoor temp humidity 46 cooling value temerature table performance curves 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 cooling capacity W cooling capac...

Page 23: ...356 1697 25 18ć 1105 1118 2781 3005 3117 3292 3452 1760 27 19ć 1158 1138 2845 3069 3164 3324 3516 1776 30 22ć 1172 1185 2957 3196 3308 3548 3708 1901 32 23ć 1192 1165 2989 3292 3356 3612 3756 2121 32 24ć 1212 1145 3037 3356 3404 3676 3804 2279 outdoor temp humidity 46 power consumption value temp table performance curves 100 600 1100 1600 2100 2600 3100 3600 4100 power consumption w indoor tempe D...

Page 24: ...7 6ć 8499 7917 7179 15ć 6954 6597 5615 20ć 6394 6171 5136 25ć 6596 6384 5287 indoor temp humidity 46 heating capacity and indoor outdoor temp table performance curves 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 heating capacity W heating capacity and indoor outdoor temp curves 15ć 20ć 25ć outdoor temp DB WD 22 ...

Page 25: ...655 2923 3192 15ć 1524 1670 1816 20ć 1123 1171 1271 25ć 1129 1182 1277 indoor temp humidity 46 power consumption value temp table performance curves 0 200 400 600 800 1000 1200 1400 1600 1800 2000 15ć 5ć 5ć 7 6ć 15ć 20ć 25ć cooling capacity w outdoor tempe DB WB heating capacity and indoor outdoor temp curves 15ć 20ć 25ć 23 ...

Page 26: ...02 6616 25ć 8280 8366 8536 30ć 8280 8451 8536 35ć 8366 8536 8793 40ć 8451 8878 8878 45ć 6528 6528 6779 performance curves cooling discharge pressure table indoor temp 1500 2000 2500 3000 3500 4000 15ć 25ć 30ć 35ć 40ć 45ć DISCHARGE PRESSURE Outdoor Temp COOLING DISCHARGE PRESSURE 16ć 19ć 22ć ...

Page 27: ...277 2353 25ć 2945 2975 3036 30ć 2945 3005 3036 35ć 2975 3036 3127 40ć 3005 3157 3157 45ć 2321 2321 2411 performance curves cooling suction pressure table indoor temp 350 850 1350 1850 2350 2850 3350 15ć 25ć 30ć 35ć 40ć 45ć SUCTION PRESSURE Outdoor Temp COOLING SUCTION PRESSURE 16ć 19ć 22ć ...

Page 28: ... 5ć 7530 7727 7964 0ć 7648 7806 8043 5ć 7806 7885 8122 10ć 7553 7779 7892 15ć 6333 6521 6584 20ć 6067 6185 6243 performance curves Heating discharge pressure table indoor temp 1000 1500 2000 2500 3000 3500 4000 15ć 10ć 5ć 0ć 5ć 10ć 15ć 20ć DISCHARGE PRESSURE Outdoor Temp HEATING DISCHARGE PRESSURE 15ć 20ć 25ć 26 ...

Page 29: ...04 2888 10ć 2686 2766 2807 15ć 2252 2319 2341 20ć 2157 2199 2220 performance curves heating discharge pressure table indoor temp 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 15ć 10ć 5ć 0ć 5ć 10ć 15ć 20ć SUCTION PRESSURE Outdoor Temp HEATING SUCTION PRESSURE 15ć 20ć 25ć 27 ...

Page 30: ...2015 Johnson Controls Inc www johnsoncontrols com Doc No MH9FYHAH 151103 24 ...

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