background image

Introduction 

Domestic air conditioner

Warning 

Be sure to use an exclusive power circuit for the equipment, and follow the technical standards related to 
the electrical equipment, the internal wiring regulations and the instruction manual for installation when 
conducting electrical work. 
Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire. 

Be sure to use the specified cable to connect between the indoor and outdoor units. Make the 
connections securely and route the cable properly so that there is no force pulling the cable at the 
connection terminals. 
Improper connections can cause excessive heat generation or fire. 

When connecting the cable between the indoor and outdoor units, make sure that the terminal cover 
does 
not lift off or dismount because of the cable. 
If the cover is not mounted properly, the terminal connection section can cause an electrical shock, 
excessive heat generation or fire. 
Do not damage or modify the power cable. 
Damaged or modified power 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 and repair it before charging the refrigerant. After 
charging refrigerant, make sure that there is no refrigerant leak. 
If the leak cannot be located and the repair work must be stopped, be sure to perform pump-down and 
close the service valve, to prevent the refrigerant gas from leaking into the room. The refrigerant gas 
itself 
is harmless, but it can generate toxic gases when it contacts flames, such as fan and other heaters, 
stoves and ranges. 

.

 

When replacing the coin battery in the remote controller, be sure to disposed of the old battery to prevent 
children from swallowing it. 
If a child swallows the coin battery, see a doctor immediately. 

Caution 

Installation of a leakage breaker is necessary in some cases depending on the conditions of the 
installation site, to prevent electrical shocks. 

3

Summary of Contents for York YH9FYC12BAH-A-X

Page 1: ...SERVICE MANUAL High Wall Fixed R 410A 60Hz YH9FYC12BAH A X Read this manual before installation and operation Make sure that it is well kept for later reference ...

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

Page 3: ... disassembling 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 ...

Page 4: ...oom 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 sure that the...

Page 5: ...ified power 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 loc...

Page 6: ...re 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 Check to see if ...

Page 7: ...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 damage equipment l...

Page 8: ... e w s s o r G Sound level 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 5 4 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 7 0 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 44A282GG l e d o M 1125 W t u p t u o r o t o M Oil type NMOC ZE Gles RB68EP or equivalent L e m u l o v e ...

Page 9: ...ifference m 10 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 detecti...

Page 10: ...Pinping diagrams 8 Domestic air conditioner ...

Page 11: ...Operation range 9 Domestic air conditioner ...

Page 12: ...2 There are no dotted lines on cool only type marked with Wire is connected from 4 marked with on terminal block to 1 1 See above for wiring of heat pump type NOTE 3 Some of cool only type terminal block only have 1 2 and but no the parts 4 The parts are optional ...

Page 13: ...Dimensinal drawings Domestic air conditioner 7 Dimensional drawings 8 Center of gravity 540mm 245mm 780mm 780mm 245mm 780mm 540mm 245mm 338 3mm 284 8mm 113 7mm 11 ...

Page 14: ...ler on a 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 ...

Page 15: ...rt 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 ...

Page 16: ...pes 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 1 Connection of pipes 2 charge additional refrigerant Connection 3 If the drain elbow is used please attach ...

Page 17: ... 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 drainage as shown below Please pour water in the drain pan of the...

Page 18: ...ure 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 Domestic air conditioner 10 Service Diagnosis Service diagnosis 16 10 2 Parameter of primary electronic appliance Picture Parameter Name NO 1 Rated voltage 208 230V 2...

Page 19: ... E2 Heat exchange 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 Faulty connector connection Causes Faulty thermistor Faul...

Page 20: ...ution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 10 3 3 Indoor AC fa n 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 minu...

Page 21: ...f Terminal CN5 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 ...

Page 22: ...03 3109 2287 25 18 2708 2633 4317 4071 3692 3497 3381 2527 27 19 2783 2683 4400 4194 3808 3614 3459 2587 30 22 2958 2933 4728 4523 4158 4003 3886 2918 32 23 2984 2958 4811 4605 4236 4042 3925 2948 32 24 3034 3009 4893 4687 4314 4119 4003 3009 outdoor temp humidity 46 cooling value temerature table performance curves 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 cooling capacity W cooling capac...

Page 23: ...510 1606 1678 849 25 18 552 559 1390 1502 1558 1646 1726 880 27 19 579 569 1422 1534 1582 1662 1758 888 30 22 586 593 1478 1598 1654 1774 1854 951 32 23 596 583 1494 1646 1678 1806 1878 1061 32 24 606 573 1518 1678 1702 1838 1902 1139 outdoor temp humidity 46 power consumption value temp table performance curves 100 300 500 700 900 1100 1300 1500 1700 1900 2100 power consumption w indoor tempe DB ...

Page 24: ... 19 22 15 3090 3197 3303 25 4134 4177 4262 30 4134 4220 4262 35 4177 4262 4390 40 4220 4433 4433 45 3259 3259 3385 performance curves cooling discharge pressure table indoor temp 1500 2000 2500 3000 3500 4000 15 25 30 35 40 45 DISCHARGE PRESSURE Outdoor Temp COOLING DISCHARGE PRESSURE 16 19 22 ...

Page 25: ... 19 22 15 1100 1138 1176 25 1472 1488 1518 30 1472 1503 1518 35 1488 1518 1563 40 1503 1579 1579 45 1161 1161 1205 performance curves cooling suction pressure table indoor temp 350 550 750 950 1150 1350 1550 1750 15 25 30 35 40 45 SUCTION PRESSURE Outdoor Temp COOLING SUCTION PRESSURE 16 19 22 ...

Page 26: ...2015 Johnson Controls Inc www johnsoncontrols com Doc No MH9FYCAH 151103 12 ...

Reviews: