service manual - combitec · 7.outdoor performance curves…… ... by integrating intelligential...

Commercial Air Conditioning

SERVICE MANUAL

Models Inverter R410a 50/60HZ

Indoor: YHKJXH012BAM--FX YHKJXH018BAM--FX YHKJXH024BAR--FX YHKJXH028BAR--FX YHKJXH036BAR--FX YHKJXH048BAR--FX YHKJXH048BAR--FX YHKJXH060BAR--FX YHFJXH012BAM--FX YHFJXH018BAM--FX YHFJXH024BAR--FX YHFJXH028BAR--FX YHFJXH036BAR--FX YHFJXH048BAR--FX YHFJXH048BAR--FX YHFJXH060BAR--FX YHDJXH012BAM--GX YHDJXH018BAM--GX YHDJXH024BAR--GX YHEJXH024BAR--GX YHEJXH028BAR--GX YHEJXH036BAR--GX YHEJXH048BAR--GX YHEJXH048BAR--GX YHGJXH048BAR--GX YHGJXH048BAR--GX YHGJXH060BAR--GX

Outdoor: YHUJYH024BAR-A-XYHUJYH028BAR-A-XYHUJYH036BAR-A-XYHUJYH048BAR-A-XYHUJYH048BAS-A-XYHUJYH060BAS-A-X

1

CONTENTS Contents………………………………………………………......2 1. Description of products & features…………………………..3

12. Controller functions…...…………………………………....152

2. Specification…………………………………………………...53. Dimensions…………………………………………………....334. Pipe and wiring installation…..……………………………...405. PCB photo, wiring diagram and function description……..926. Diagnostic code and troubleshooting.…………………….1227. Outdoor performance curves………..……………………..1288. Indoor air velocity and temperature distribution curves....1339. Air flow and static pressure chart…………………………..13510. Noise level…………………………………………………..13711. Sensor characteristic….…………………………………...150

2

1.Description of products & features

1.2 Operating Range of Air Conditioners

rated maximum minimum

DB 32 18

WB 19 23 14

DB 35 46

WB 24 24 —

DB 20 27 15

WB 14.5 —

DB

WB

Working temperature range

Cooling

Heating

Climate type

T1

Cooling Only

Electricity Heating

18 ~

~~

15

1.1 Brief Introduction for T1 working condition

27

46

4646

Type of Conditioner

Heat Pump -

6 18 —

7 24 ―15

—

10

3

1.3 Product features

Super match

By integrating intelligential technology of Haier A/C group, super match air conditioner,

with universal indoor and outdoor units, make more intelligent and flexible choices on

purchasing, easier inventory management to every customer.

Good for choice

Multi-choice of capacity and appearance of indoor unit according to various rooms.

DC scroll compressor

The highly efficient scroll compressor is equipped with a “flexible Mechanism” that

allows movement in the axial direction of the frame supporting the cradle scroll. This

greatly reduces both leakage and friction loss, ensuring very high efficiency

throughout the speed range.

DC inverter technology

Powerful startup: Haier DC inverter system can startup and running at maximum

frequency very quickly in order to reach the set temperature in the shorter time, which

brings you great comfort experience.

Minimum running: Haier DC inverter system will reduce the frequency and running

smoothly according to the real load after reach the set temperature. The system

funning cost reduced drastically which brings you real benefit of money saving.

Automatic control

Precise control: The temperature sensor can measure the temperature precisely with

only 0.5 tolerance, which transfers the exact requirement to the system to adjust the

compressor frequency accordingly.

Once reach the set temperature, the system adjust the frequency smoothly according

to the real time request and always maintain the temperature without fluctuation.

Wider operation range

Haier DC inverter system provide much wider working range that is suitable for

special cooling, heating requirement.

The Unitary Smart DC inv. outdoor unit default production with AC fan motor, DC fan

motor is for optional choice with additional cost.

4

Model name YORK

Unit YHKJZH012BAM-AFX YHKJZH018BAM-AFX

Outdoor YHUJYH012BAM-A-X YHUJYH018BAM-A-X

Indoor YHKJXH012BAM--FX YHKJXH018BAM--FXPower supply V/Ph/Hz 230/1/50 230/1/50

Rated Cooling

Capacity kW(min~max) 3.5(0.9~4.5) 4.8(1.8~5.8)

Input W(min~max) 1080(280~1650) 1490(550~2000)

Rated current A 5 6.8EER W/W 3.24 3.22

SEER W/W 5.1 5.1

Rated Heating

Capacity Btu/h 12371.4 17375

Input W(min~max) 995(280~1650) 1580(600~2000)

Rated current A 4.7 6.7COP W/W 3.62 3.22

SCOP W/W 3.64 3.4

Heating P design(-10 ) kW 3.4 4.8

Moisture Removal l/h 1.6 1.8Max. input consumption W 1800 2000

Max. current A 8 9.5Starting current A 3 3

Operation Control Wired&Wireless Wired&Wireless

Indoor coil

Number of row 2 2

Fin spacing mm 1.25 1.25

Fin material Hydrophilic Aluminium Hydrophilic Aluminium

Tube outside diameter mm 7 7

Tube material Inner Grooved copper tube Inner Grooved copper tube

Number of circuit 4 4

Indoor fan motor

Input W 30 62Output W 11 18

Running current A 0.18 0.24

Capacitor uF 2 2

Speed (Hi/Me/Lo) rpm 690/520/560 795/690/550

Indoor air flow at 0/50/100 Pa(Hi/Me/Lo) m3/h 620/520/450 700/620/500Indoor noise level(Sound power level) (Hi/

Me/Lo) dB(A) 53/49/45 55/50/47

Indoor noise level (Sound pressure level)(Hi/Me/Lo) dB(A) 40/36/32 42/37/35

Indoor dimension

Unit (WxDxH) mm 570×570×260 570×570×260

Packing (WxDxH) mm 718×680×380 718×680×380

Indoor weightNet kg 18.5 18.5

Gross kg 23 23

Panel dimension

Unit (WxDxH) mm 700×700×60 700×700×60

Packing (WxDxH) mm 740×750×115 740×750×115

Panel weightNet kg 2.8 2.8

Gross kg 4.8 4.8

5

2.Specification

Model name YORK

Unit YHKJZH012BAM-AFX YHKJZH018BAM-AFX

Outdoor YHUJYH012BAM-A-X YHUJYH018BAM-A-X

Indoor YHKJXH012BAM--FX YHKJXH018BAM--FX

Outdoor coil

Number of row 2 2



Tube outside diameter mm 9.52 7


Coil length x height x width mm 793 x43.3x550 793 x26.6x462


Compressor

Type Rotary RotaryCapacity W/h 9043.92 13992.48

Input W 690 1245

Rated current(RLA) A 2650 8.4

Thermal protector 115 120

Refrigerant oil ml 370 500

Outdoor fan motor



Speed rpm 850 860Outdoor air flow m3/h 1900 2200

Outdoor noise level (Sound power level) dB(A) 62 64Outdoor noise level (Sound pressure

level) dB(A) 54 54

Outdoor dimension

Unit (WxDxH) mm 780×245×540 810×288×688

Packing (WxDxH) mm 930×340×614 949×406×745

Outdoor weight

Net kg 32 43Gross kg 35 45.5

RefrigerantType R410A R410A

Charge g 1100 1300

Refrigerant pipe

Liquid side mm 6.35 6.35Gas side mm 9.52 12.7

Max. refrigerant pipe length m 15 25

Max. difference in level m 10 15

Operation temperature range 16~30 16~30Ambient temperature range (Cooling) 18~43 18~43Ambient temperature range (Heating) -15~24 -15~24

Application area m2 25 35

6

Model name YORK

Unit YHKJZH024BAR-AFX YHKJZH028BAR-AFX

Outdoor YHUJYH024BAR-A-X YHUJYH028BAR-A-X

Indoor YHKJXH024BAR--FX YHKJXH028BAR--FXPower supply V/Ph/Hz 230/1/50(60) 230/1/50(60)

Rated Cooling

Capacity kW(min~max) 6.9(1.8～7.5) 7.8(2.0～8.7)

Input W(min~max) 2225(500～2600) 2590(500～3800)

Rated current A 9.4 10.8EER W/W 3.1 3.01

SEER W/W 5.217391304 5.239130435

Rated Heating

Capacity Btu/h 24885 29008

Input W(min~max) 2010(500～2600) 2530(500～3800)

Rated current A 9 11.6COP W/W 3.63 3.36

SCOP W/W 3.6 3.4

Heating P design(-10 ) kW 6.5 7.8

Moisture Removal l/h 2.5 2.8Max. input consumption W 2600 4200

Max. current A 12 19Starting current A 3 3


Indoor coil

Number of row 2 2






Indoor fan motor



Capacitor uF 3 3

Speed (Hi/Me/Lo) rpm 710/620/520 710/620/520


Me/Lo) dB(A) 59/57/52 61/59/57


Indoor dimension

Unit (WxDxH) mm 840×840×240 840×840×240

Packing (WxDxH) mm 930×930×330 930×930×330

Indoor weightNet kg 26.8 26.8

Gross kg 32.6 32.6

Panel dimension

Unit (WxDxH) mm 950×950×60 950×950×60

Packing (WxDxH) mm 985×985×115 985×985×115

Panel weightNet kg 6 6

Gross kg 7.5 7.5

7

Model name YORK



Indoor YHKJXH024BAR--FX YHKJXH028BAR--FX

Outdoor coil

Number of row 2 2



Tube outside diameter mm 7.94 7.94


Coil length x height x width mm 840 x39.9x700 855 x38.1x792


Compressor


Input W 1245 2200(60Hz)

Rated current(RLA) A 8.4 9.7



Outdoor fan motor





level) dB(A) 57 58

Outdoor dimension

Unit (WxDxH) mm 860×308×730 948×340×840

Packing (WxDxH) mm 995×420×815 1040×430×1000

Outdoor weight

Net kg 49 64Gross kg 52 73


Charge g 1600 2600

Refrigerant pipe




Operation temperature range 16～30 16～30Ambient temperature range (Cooling) -10～46 -10～46Ambient temperature range (Heating) -15～24 -15～24


8

Model name YORK




Rated Cooling


Input W(min~max) 3000(500～3800) 4115(2000～6000)

Rated current A 12.87 18EER W/W 3.097826087 2.94

SEER W/W 5.347826087 /

Rated Heating

Capacity Btu/h 32030.55 43121.875

Input W(min~max) 2780(500～3800) 4070(2000～6000)

Rated current A 12.1 18COP W/W 3.38 3.10

SCOP W/W 3.6 /

Heating P design(-10 ) kW 9.1 /

Moisture Removal l/h 3 3.8Max. input consumption W 4500 6000

Max. current A 20 26Starting current A 3 3


Indoor coil

Number of row 2 2






Indoor fan motor



Capacitor uF 8 8

Speed (Hi/Me/Lo) rpm 680/610/530 680/610/530


Me/Lo) dB(A) 62/60/57 /


Indoor dimension

Unit (WxDxH) mm 840×840×290 840×840×290

Packing (WxDxH) mm 930×930×390 930×930×390

Indoor weightNet kg 31 31

Gross kg 37 37

Panel dimension

Unit (WxDxH) mm 950×950×60 950×950×60

Packing (WxDxH) mm 985×985×115 985×985×115

Panel weightNet kg 6 6

Gross kg 7.5 7.5

9

Model name YORK



Indoor YHKJXH036BAR--FX YHKJXH048BAR--FX

Outdoor coil

Number of row 3 2



Tube outside diameter mm 7.0 7.94


Coil length x height x width mm 960 x39.9x792 792x38.1x995

Number of circuit 8 in 4 out 9

Compressor


Input W 2200(60Hz) 3010

Rated current(RLA) A 9.7 9.3



Outdoor fan motor





level) dB(A) 58 59

Outdoor dimension

Unit (WxDxH) mm 948×340×840 1008×410×830

Packing (WxDxH) mm 1040×430×1000 1130×490×930

Outdoor weight

Net kg 65 82Gross kg 74 93


Charge g 2700 2850

Refrigerant pipe




Operation temperature range 16～30 16～30Ambient temperature range (Cooling) -10～46 -10～46Ambient temperature range (Heating) -15～24 -15～24


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Model name YORK

Unit YHKJZH048BAS-AFX YHKJZH060BAS-AFX

Outdoor YHUJYH048BAS-A-X YHUJYH060BAS-A-X


Rated Cooling


Input W(min~max) 4296(2000～6000) 5124(2000～6500)

Rated current A 6.5 8.5EER W/W 2.815217391 2.81

SEER W/W / /

Rated Heating

Capacity Btu/h 42304.5 52507.35

Input W(min~max) 4102(2000～6000) 5110(2000～6500)

Rated current A 6.7 8.5COP W/W 3.02 3.01

SCOP W/W / /

Heating P design(-10 ) kW / /

Moisture Removal l/h 3.8 5Max. input consumption W 6000 6500

Max. current A 10 10.5Starting current A 3 3


Indoor coil

Number of row 2 2






Indoor fan motor



Capacitor uF 8 4.5

Speed (Hi/Me/Lo) rpm 680/610/530 670/550/460


Me/Lo) dB(A) / /


Indoor dimension

Unit (WxDxH) mm 840×840×290 1230×840×280

Packing (WxDxH) mm 930×930×390 1325×920×370

Indoor weightNet kg 31 38.6

Gross kg 37 45.7

Panel dimension

Unit (WxDxH) mm 950×950×60 1340×950×80

Packing (WxDxH) mm 985×985×115 1400×995×115

Panel weightNet kg 6 8.4

Gross kg 7.5 12.7

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Model name YORK

Unit 2 2

Outdoor 1.4 1.5

Indoor Hydrophilic Aluminium Hydrophilic Aluminium

Outdoor coil

Number of row 7.94 7.94

Fin spacing mm Inner Grooved copper tube Inner Grooved copper tube

Fin material 792x38.1x995 970x38.1x1200


Tube material Rotary Rotary

Coil length x height x width mm 33718.464 47710.944


Compressor

Type 9.3 12Capacity W/h 120 120

Input W 870 1400

Rated current(RLA) A 257 120


Refrigerant oil ml 1.1 0.4

Outdoor fan motor

Input W 850 930Output W 4200 6500

Running current A 73 75

Speed rpm 59 60Outdoor air flow m3/h 1008×410×830 948×340×1250

Outdoor noise level (Sound power level) dB(A) 1130×490×930 1095×410×1400Outdoor noise level (Sound pressure

level) dB(A) 82 96

Outdoor dimension

Unit (WxDxH) mm 93 106

Packing (WxDxH) mm R410A R410A

Outdoor weight

Net kg 2850 3300Gross kg 9.52 9.52

RefrigerantType 19.05 19.05

Charge g 50 50

Refrigerant pipe

Liquid side mm 30 30Gas side mm 16～30 16～30

Max. refrigerant pipe length m -10～46 -10～46

Max. difference in level m -15～24 -15～24

Operation temperature range 82 100Ambient temperature range (Cooling) -10～46 -10～46Ambient temperature range (Heating) -15～24 -15～24


12

model YORKUnit YHFJZH012BAM-AFX YHFJZH018BAM-AFX

Outdoor YHUJYH012BAM-A-X YHUJYH018BAM-A-XIndoor YHFJXH012BAM--FX YHFJXH018BAM--FX

Power supply V/Ph/Hz 230/1/50 230/1/50

Rated Cooling

Capacity Btu/h 12286 17064Capacity kW(min～ max) 3.6(0.9～ 4.5) 5.0(1.7～ 5.3)Input W(min～ max) 1118(280～ 1650) 1500(550～ 2000)Rated current A 5 6.8EER W/W 3.22 3.33 SEER W/W 5.3 5.6

Rated Heating

Capacity Btu/h 13992 19111Capacity kW(min～ max) 4.1(1～ 4.8) 5.6(1.8～ 6.0)Input W(min～ max) 1100(280～ 1650) 1509(600～ 2000)Rated current A 4.9 6.5COP W/W 3.73 3.71 SCOP W/W 3.8 3.6 Heating P design(-10 ) kW 3.4 5

Moisture Removal l/h 1.6 1.8 Max. input consumption W 1800 2000Max. current A 8.0 9.5 Starting current A 3 3Operation Control Wired&Wireless Wired&Wireless

Indoor coil

Number of row 3 3Fin spacing mm 1.5 1.5Fin material Hydrophilic Aluminium Hydrophilic AluminiumTube outside diameter mm 7 7


Coil length x height x width mm 797x39.9x252 797x39.9x252Number of circuit 4 4

Indoor fan motor

Input W 79 96Output W 28 55Running current A 0.32 0.55Capacitor uF 2 3Speed (Hi/Me/Lo) rpm 1100/1025/825 1220/1190/1050

Indoor air flow at 0/50/100 Pa(Hi/Me/Lo) m3/h 650/550/450 800/720/650Indoor noise level(Sound power level) (Hi/Me/Lo) dB(A) 54/50/46 57/54/49


Indoor dimension Unit (WxDxH) mm 990×199×655 990×199×655Packing (WxDxH) mm 1150×300×750 1150×300×750

Indoor weight Net kg 26.3 28.3Gross kg 32.3 34.3

Outdoor coil

Number of row 2 2Fin spacing mm 1.75 1.41Fin material Hydrophilic Aluminium Hydrophilic AluminiumTube outside diameter mm 9.52 7


Coil length x height x width mm 793 x43.3x550 793 x26.6x462Number of circuit 4 3

Compressor

Type Rotary RotaryCapacity W/h 9043.92 13992.48Input W 690 1245Rated current(RLA) A 2650 8.4Thermal protector 115 120Refrigerant oil ml 370 500

13

model YORKUnit YHFJZH012BAM-AFX YHFJZH018BAM-AFX

Outdoor YHUJYH012BAM-A-X YHUJYH018BAM-A-XIndoor YHFJXH012BAM--FX YHFJXH018BAM--FX

O u t d o o r f a n motor

Input W 62 56Output W 40 41Running current A 0.2 0.25Speed rpm 850 860

Outdoor air flow m3/h 1900 2200Outdoor noise level (Sound power level) dB(A) 62 64Outdoor noise level (Sound pressure level) dB(A) 54 54O u t d o o r dimension

Unit (WxDxH) mm 780×245×540 810×288×688Packing (WxDxH) mm 930×340×614 949×406×745

Outdoor weight Net kg 32 43Gross kg 35 45.5

Refrigerant Type R410A R410ACharge g 1100 1300

Refrigerant pipe

Liquid side mm 6.35 6.35Gas side mm 9.52 12.7Max. refrigerant pipe length m 15 25Max. difference in level m 10 15

Operation temperature range 16～ 30 16～ 30Ambient temperature range (Cooling) 18～ 43 18～ 43Ambient temperature range (Heating) -15～ 24 -15～ 24Application area m2 24 35

14

model YORKUnit YHFJZH024BAR-AFX YHFJZH028BAR-AFX

Outdoor YHUJYH024BAR-A-X YHUJYH028BAR-A-XIndoor YHFJXH024BAR--FX YHFJXH028BAR--FX

Power supply V/Ph/Hz 230/1/50(60) 230/1/50(60)

Rated Cooling

Capacity Btu/h 21842 26620Capacity kW(min～ max) 6.4(1.8～ 6.7) 7.8(1.9～ 9.2)Input W(min～ max) 2216(500～ 2600) 2475(500～ 2600)Rated current A 9.5 10.2EER W/W 2.89 3.15 SEER W/W 5.2 5.7

Rated Heating

Capacity Btu/h 23890 30751Capacity kW(min～ max) 7.0(2.3～ 7.3) 9.0(2.0～ 9.6)Input W(min～ max) 2140(500～ 2600) 2480500～ 2600)Rated current A 9.5 10.2COP W/W 3.27 3.63 SCOP W/W 3.6 3.8 Heating P design(-10 ) kW 6.5 8


Indoor coil




Indoor fan motor


Indoor air flow at 0/50/100 Pa(Hi/Me/Lo) m3/h 850/800/720 1630/1537/1375Indoor noise level(Sound power level) (Hi/Me/Lo) dB(A) 57/54/49 62/58/46



Indoor weight Net kg 28.3 37Gross kg 34.3 47

Outdoor coil

Number of row 2 2Fin spacing mm 1.65 1.7Fin material Hydrophilic Aluminium Hydrophilic AluminiumTube outside diameter mm 7.94 7.94



Compressor

Type Rotary RotaryCapacity W/h 13992.48 24333 Input W 1245 2200(60Hz)Rated current(RLA) A 8.4 9.7Thermal protector 120 120Refrigerant oil ml 500 870

15







Outdoor weight Net kg 49 64Gross kg 52 73


Refrigerant pipe


Operation temperature range 16～30 16～30Ambient temperature range (Cooling) -10～46 -10～46Ambient temperature range (Heating) -15～24 -15～24Application area m2 45 55

16




Rated Cooling

Capacity Btu/h 31739 42000Capacity kW(min～ max) 9.3(2.0～ 10.1) 12.3(5.5～ 13.3)Input W(min～ max) 2982(500～ 2800) 3975(2000～ 6000)Rated current A 10.9 17.5EER W/W 3.11 3.09 SEER W/W 5.6 /

Rated Heating

Capacity Btu/h 36176 47104Capacity kW(min～ max) 10.6(2.0～ 10.8) 13.8(5.5～ 15.1)Input W(min～ max) 2910(500～ 2800) 4083(2000～ 6000)Rated current A 12.8 18.5COP W/W 3.62 3.38 SCOP W/W 3.8 /Heating P design(-10 ) kW 9.1 /


Indoor coil




Indoor fan motor


Indoor air flow at 0/50/100 Pa(Hi/Me/Lo) m3/h 1630/1537/1375 2000/1800/1400Indoor noise level(Sound power level) (Hi/Me/Lo) dB(A) 62/58/46 /



Indoor weight Net kg 37 54Gross kg 47 61

Outdoor coil



Coil length x height x width mm 960 x39.9x792 792x38.1x995Number of circuit 8 in 4 out 9

Compressor

Type Rotary RotaryCapacity W/h 24333 33718 Input W 2200(60Hz) 3010Rated current(RLA) A 9.7 9.3Thermal protector 120 120Refrigerant oil ml 870 870

17









Refrigerant pipe



18

model YORKUnit YHFJZH048BAS-AFX YHFJZH060BAS-AFX

Outdoor YHUJYH048BAS-A-X YHUJYH060BAS-A-XIndoor YHFJXH048BAR--FX YHFJXH060BAR--FX


Rated Cooling

Capacity Btu/h 42000 50552Capacity kW(min～ max) 12.3(5.5～ 13.3) 14.8(3.7～ 15.1)Input W(min～ max) 4040(2000～ 6000) 5028(2000～ 6500)Rated current A 6.6 8.5EER W/W 3.04 2.95 SEER W/W / /

Rated Heating

Capacity Btu/h 46464 51761Capacity kW(min～ max) 13.6(5.5～ 15.1) 15.2(3.7～ 16.5)Input W(min～ max) 4120(2000～ 6000) 4620(2000～ 6500)Rated current A 6.8 8.1COP W/W 3.30 3.28 SCOP W/W / /Heating P design(-10 ) kW / /


Indoor coil




Indoor fan motor


Indoor air flow at 0/50/100 Pa(Hi/Me/Lo) m3/h 2000/1800/1400 2000/1800/1400Indoor noise level(Sound power level) (Hi/Me/Lo) dB(A) / /




Outdoor coil




Compressor

Type Rotary RotaryCapacity W/h 33718 47711 Input W 3010 4270Rated current(RLA) A 9.3 12Thermal protector 120 120Refrigerant oil ml 870 1400

19

model YORKUnit YHFJZH048BAS-AFX YHFJZH060BAS-AFX

Outdoor YHUJYH048BAS-A-X YHUJYH060BAS-A-XIndoor YHFJXH048BAR--FX YHFJXH060BAR--FX







Refrigerant pipe



20

Model name YORKUnit YHDJZH012BAM-AGX YHDJZH018BAM-AGX

Outdoor YHUJYH012BAM-A-X YHUJYH018BAM-A-XIndoor YHDJXH012BAM--GX YHDJXH018BAM--GX

Power supply V/Ph/Hz 230/1/50 230/1/50

Rated Cooling

Capacity Btu/h 11945 17064Capacity kW(min～max) 3.5(0.8～4.1) 5.0(1.7～5.5)Input W(min～max) 1080(280～1650) 1553(550～2100)Rated current A 5 6.8EER W/W 3.24 3.22 SEER W/W 5.3 5.6

Rated Heating

Capacity Btu/h 13793 19112Capacity kW(min～max) 4.0(0.9～4.4) 5.4(1.8～6.0)Input W(min～max) 1160(280～1650) 1496(600～2100)Rated current A 5.1 6.5COP W/W 3.45 3.61 SCOP W/W 3.8 3.8 Heating P design(-10～) kW 3.4 5


Indoor coil



Coil length x height x width mm 434 x 39.9 x 252 895x 26.6 x 252Number of circuit 3 4

Indoor fan motor

Input W 40 90Output W 30 74Running current A 0.5 0.5Speed (Hi/Me/Lo) rpmIndoor air flow at 0/50/100Pa(Hi/Me/Lo) m3/h 550

External static pressure Pa 0/30 0/30Indoor noise level(Sound power level) (Hi/Me/Lo) dB(A) 46/41/46 49/43/39



Indoor weight Net kg 17 25Gross kg 18 26.5

Outdoor coil

Number of row 2 2Fin spacing mm 1.75 1.41Fin material Hydrophilic Aluminium Hydrophilic AluminiumTube outside diameter mm 9.52 7



Compressor

Type Rotary RotaryCapacity W/h 9043.92 13992.48Input W 690 1245Rated current(RLA) A 2650 8.4Thermal protector 115 120Refrigerant oil ml 370 500

21

model YORKUnit YHDJZH012BAM-AGX YHDJZH018BAM-AGX

Outdoor YHUJYH012BAM-A-X YHUJYH018BAM-A-XIndoor YHDJXH012BAM--GX YHDJXH018BAM--GX





Outdoor weight Net kg 32 43Gross kg 35 45.5


Refrigerant pipe


Operation temperature range 16～30 16～30Ambient temperature range (Cooling) 18～43 18～43Ambient temperature range (Heating) -15～24 -15～24Application area m2 25 35

22

Model name YORKUnit YHDJZH024BAR-AGX YHEJZH024BAR-AGX

Outdoor YHUJYH024BAR-A-X YHUJYH024BAR-A-XIndoor YHDJXH024BAR--GX YHEJXH024BAR--GX


Rated Cooling

Capacity Btu/h 24231 24231Capacity kW(min～max) 7.1(1.8～7.5) 7.1(1.8～7.5)Input W(min～max) 2180(600～2600) 2158(600～2600)Rated current A 9.8 9.8EER W/W 3.25 3.29 SEER W/W 5.6 5.2

Rated Heating

Capacity Btu/h 24231 25063Capacity kW(min～max) 7.2(2.8～7.6) 7.3(2.3～7.8)Input W(min～max) 1980(600～2600) 2000(600～2600)Rated current A 9.2 9.5COP W/W 3.63 3.65 SCOP W/W 3.8 3.8 Heating P design(-10～) kW 6.5 6.5


Indoor coil



Coil length x height x width mm 895x 39.9 x 252 813x39.9 x 252Number of circuit 6 6

Indoor fan motor

Input W 90 190Output W 74 88Running current A 0.5 0.86Speed (Hi/Me/Lo) rpm 1200/1100/1000Indoor air flow at 0/50/100Pa(Hi/Me/Lo) 1100 1050/1000/900

External static pressure Pa 0/30 0/50Indoor noise level(Sound power level) (Hi/Me/Lo) dB(A) 52/45/42 56/54/51



Indoor weight Net kg 27 37Gross kg 28.5 39

Outdoor coil




Compressor

Type Rotary RotaryCapacity W/h 13992.48 13992.48Input W 1245 1245Rated current(RLA) A 8.4 8.4Thermal protector 120 120Refrigerant oil ml 500 500

23

model YORKUnit YHDJZH024BAR-AGX YHEJZH024BAR-AGX

Outdoor YHUJYH024BAR-A-X YHUJYH024BAR-A-XIndoor YHDJXH024BAR--GX YHEJXH024BAR--GX







Refrigerant pipe



24

Model name YORKUnit YHEJZH028BAR-AGX YHEJZH036BAR-AGX

Outdoor YHUJYH028BAR-A-X YHUJYH036BAR-A-XIndoor YHEJXH028BAR--GX YHEJXH036BAR--GX


Rated Cooling

Capacity Btu/h 27693 32080Capacity kW(min～max) 8.1(1.9～9.0) 9.4(2.0～10.1)Input W(min～max) 2691(500～3800) 3175(500～3800)Rated current A 12 14.3EER W/W 3.01 2.96 SEER W/W 5.2 5.1

Rated Heating

Capacity Btu/h 31056 34811Capacity kW(min～max) 9.1(2.0～9.6) 10.2(2.0～11.0)Input W(min～max) 2465(500～3800) 2887(500～3800)Rated current A 10.5 13.2COP W/W 3.69 3.53 SCOP W/W 3.5 3.4 Heating P design(-10～) kW 7.8 9.1


Indoor coil



Coil length x height x width mm 1001x39.9 x 309 1001x39.9 x 309Number of circuit 6 6

Indoor fan motor

Input W 375 375Output W 207 207Running current A 1.5 1.5Speed (Hi/Me/Lo) rpm 1200/1100/1000 1200/1100/1000Indoor air flow at 0/50/100Pa(Hi/Me/Lo) 2090/1970/1792 2090/1970/1792

External static pressure Pa 50/100 50/100Indoor noise level(Sound power level) (Hi/Me/Lo) dB(A) 63/61/59/55 63/61/59/55

Indoor noise level (Sound pressure level)(Hi/Me/Lo) dB(A) 50/48/46/42 50/48/46/42


Indoor weight Net kg 45.4 45.4Gross kg 51.3 51.3

Outdoor coil



Coil length x height x width mm 855 x38.1x792 960 x39.9x792Number of circuit 6 8 in 4 out

Compressor

Type Rotary RotaryCapacity W/h 24333 24333 Input W 2200(60Hz) 2200(60Hz)Rated current(RLA) A 9.7 9.7Thermal protector 120 120Refrigerant oil ml 870 870

25

model YORKUnit YHEJZH028BAR-AGX YHEJZH036BAR-AGX

Outdoor YHUJYH028BAR-A-X YHUJYH036BAR-A-XIndoor YHEJXH028BAR--GX YHEJXH036BAR--GX







Refrigerant pipe



26

Model name YORKUnit YHEJZH048BAR-AGX YHEJZH048BAS-AGX

Outdoor YHUJYH048BAR-A-X YHUJYH048BAS-A-XIndoor YHEJXH048BAR--GX YHEJXH048BAR--GX


Rated Cooling

Capacity Btu/h 41636 41295Capacity kW(min～max) 12.2(5.6～13.6) 12.1(5.6～13.6)Input W(min～max) 4340(2000～6000) 4285(2000～6000)Rated current A 18.5 7EER W/W 2.81 2.82 SEER W/W / /

Rated Heating

Capacity Btu/h 46578 45895Capacity kW(min～max) 13.6(5.6～15.4) 13.4(5.6～15.4)Input W(min～max) 4240(2000～6000) 4170(2000～6000)Rated current A 19 7COP W/W 3.21 3.21 SCOP W/W / /Heating P design(-10～) kW / /


Indoor coil



Coil length x height x width mm 1001x39.9 x 309 1001x39.9 x 309Number of circuit 6 6

Indoor fan motor


External static pressure Pa 50/100 50/100Indoor noise level(Sound power level) (Hi/Me/Lo) dB(A) / /

Indoor noise level (Sound pressure level)(Hi/Me/Lo) dB(A) 51/49/47/43 51/49/47/43



Outdoor coil

Number of row 2 2Fin spacing mm 2 1.4Fin material 1.4 Hydrophilic AluminiumTube outside diameter mm Hydrophilic Aluminium 7.94Tube material 7.94 Inner Grooved copper tube

Coil length x height x width mm Inner Grooved copper tube 792x38.1x995

Number of circuit 792x38.1x995 9

Compressor

Type Rotary RotaryCapacity W/h 33718 33718 Input W 3010 3010Rated current(RLA) A 9.3 9.3Thermal protector 120 120Refrigerant oil ml 870 870

27

model YORKUnit YHEJZH048BAR-AGX YHEJZH048BAS-AGX

Outdoor YHUJYH048BAR-A-X YHUJYH048BAS-A-XIndoor YHEJXH048BAR--GX YHEJXH048BAR--GX







Refrigerant pipe



28

Model name YORKUnit YHGJZH048BAR-AGX YHGJZH048BAS-AGX

Outdoor YHUJYH048BAR-A-X YHUJYH048BAS-A-XIndoor YHGJXH048BAR--GX YHGJXH048BAR--GX


Rated Cooling

Capacity Btu/h 42319 41295Capacity kW(min～max) 12.4(5.6～13.6) 12.1(5.6～13.6)Input W(min～max) 4316(2000～6000) 4300(2000～6000)Rated current A 18.5 7EER W/W 2.87 2.82 SEER W/W / /

Rated Heating

Capacity Btu/h 46748 45895Capacity kW(min～max) 13.7(5.6～15.4) 13.4(5.6～15.4)Input W(min～max) 3800(2000～6000) 3700(2000～6000)Rated current A 17 6.8COP W/W 3.61 3.62 SCOP W/W / /Heating P design(-10～) kW / /


Indoor coil



Coil length x height x width mm 1062x64.95 x450 1062x64.95 x450Number of circuit 5 5

Indoor fan motor


External static pressure Pa 50～150 50～150Indoor noise level(Sound power level) (Hi/Me/Lo) dB(A) / /




Outdoor coil




Compressor

Type Rotary RotaryCapacity W/h 33718 33718 Input W 3010 3010Rated current(RLA) A 9.3 9.3Thermal protector 120 120Refrigerant oil ml 870 870

29

model YORKUnit YHGJZH048BAR-AGX YHGJZH048BAS-AGX

Outdoor YHUJYH048BAR-A-X YHUJYH048BAS-A-XIndoor YHGJXH048BAR--GX YHGJXH048BAR--GX







Refrigerant pipe



30

Model name YORKUnit YHGJZH060BAS-AGX

Outdoor YHUJYH060BAS-A-XIndoor YHGJXH060BAR--GX

Power supply V/Ph/Hz 400/3/50(60)

Rated Cooling

Capacity Btu/h 51875Capacity kW(min～max) 15.2(3.7～15.8)Input W(min～max) 5370(2000～6500)Rated current A 8.5EER W/W 2.83 SEER W/W /

Rated Heating

Capacity Btu/h 54605Capacity kW(min～max) 16.0(3.7～17.0)Input W(min～max) 4680(2000～6500)Rated current A 7.5COP W/W 3.42 SCOP W/W /Heating P design(-10～) kW /

Moisture Removal l/h 4.9 Max. input consumption W 6500Max. current A 10.5 Starting current A 3Operation Control Wired&Wireless

Indoor coil

Number of row 3Fin spacing mm 1.8Fin material Hydrophilic AluminiumTube outside diameter mm 9.52Tube material Inner Grooved copper tubeCoil length x height x width mm 1062x64.95 x450Number of circuit 5

Indoor fan motor

Input W 470Output W 270Running current A 1.95Speed (Hi/Me/Lo) rpm 1070/860/690Indoor air flow at 0/50/100Pa(Hi/Me/Lo) 2580/2070/1560

External static pressure Pa 50～150Indoor noise level(Sound power level) (Hi/Me/Lo) dB(A) /

Indoor noise level (Sound pressure level)(Hi/Me/Lo) dB(A) 50/46/42

Indoor dimension Unit (WxDxH) mm 1197×830×360Packing (WxDxH) mm 1430×940×420

Indoor weight Net kg 70Gross kg 77

Outdoor coil

Number of row 2Fin spacing mm 1.5Fin material Hydrophilic AluminiumTube outside diameter mm 7.94Tube material Inner Grooved copper tubeCoil length x height x width mm 970x38.1x1200Number of circuit 10

Compressor

Type RotaryCapacity W/h 47711 Input W 4270Rated current(RLA) A 12Thermal protector 120Refrigerant oil ml 1400

31

model YORKUnit YHGJZH060BAS-AGX

Outdoor YHUJYH060BAS-A-XIndoor YHGJXH060BAR--GX

Outdoor fan motor

Input W 120Output W 100Running current A 0.55Speed rpm 930

Outdoor air flow m3/h 6500Outdoor noise level (Sound power level) dB(A) 75Outdoor noise level (Sound pressure level) dB(A) 60O u t d o o r dimension

Unit (WxDxH) mm 948×340×1250Packing (WxDxH) mm 1095×410×1400

Outdoor weight Net kg 96Gross kg 106

Refrigerant Type R410ACharge g 3300

Refrigerant pipe

Liquid side mm 9.52Gas side mm 19.05Max. refrigerant pipe length m 50Max. difference in level m 30

Operation temperature range 16～30Ambient temperature range (Cooling) -10～46Ambient temperature range (Heating) -15～24Application area m2 105

32

YHUJYH028BAR-A-X YHUJYH036BAR-A-X YHUJYH048BAR-A-X YHUJYH048BAS-A-X

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5.1. 1.

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Outdoor PCB photo

5.1 Outdoor unit

YHUJYH024BAR-A-X PCB(0011800241C)

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YHUJYH024BAR-A-X power module

YHUJYH028/36BAR-A-X power module

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YHUJYH048BAR-A-X filter board

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5.1.2. Wiring diagram

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YHUJYH024BAR-A-X

97

YHUJYH028/36BAR-A-X

PTC

SW

5S

W4

SW

2

LPH

P

Mod

ule_

CO

M

M

LED

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DC

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OTO

R

250

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N AC

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ER

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m: C

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g Te

mp.

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sor

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esso

r Suc

tion

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p. S

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t Tem

p. S

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rTd

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pres

sor D

isch

arge

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p. S

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rost

ing

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p. S

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78

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CN

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capa

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Y/G

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ON

SW

11

23

45

67

8

DC

-L1

L2D

C+

PN

DC

-D

C1-

DC

2-D

C+

DC

1+D

C2+

CAP

ACIT

Y RE

AC

TOR

SW

7

ON

43

21

BL

N

W W W

SW

7N

EW

PR

OTO

CO

L

OLD

PR

OTO

CO

LS

W7

WW

W

WW

BB

BW

ON

SW

1-5

SIG

NLE

FA

N

DO

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LE F

AN

ON

SW

1-5

NE

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RO

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OL

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1-6

YHUJYH048BAS-A-X YHUJYH060BAS-A-X

POW

ER

MO

DU

LE

OU

TDO

OR

PC

B

100

stra

iner

com

pres

sor

4-wa

y st

op

valve

2-wa

y st

op v

alve

(liqu

id s

ide)

3-wa

y st

op

valve

(gas

sid

e)

cond

ense

r

evap

orat

or

pipe

coi

l te

mp.

sens

or

heat

ing

cool

ing

disc

harg

e te

mp.

sens

or

stra

iner

ambi

ent

tem

p.se

nsor

stra

iner

elec

troni

c ex

pans

ion

valve

3. Main control functions3.1 Refrigerant diagram

YHUJYH024BAR-A-X

101

CO

OLI

NG

HE

ATI

NG

high

pre

ssur

e sw

itch

low

pre

ssur

e sw

itch

EEV

filte

r

sunc

tion

tem

p.se

nsor

T

disc

harg

ing

tem

p.se

nsor

Td

coil

tem

p.se

nsor

T

cond

enso

r te

mp.

sens

orT

evap

orat

or

cond

ense

r

3-w

ay s

top

valv

e(ga

s si

de)

3-w

ay s

top

valv

e(liq

uid

side

)

4-w

ay s

top

valv

e

gas-

liqui

d se

gera

tor

filte

r

defro

stin

g te

mp.

sens

orT

heat

er

ambi

ent t

emp.

sens

orTai

com

pres

sor

ambi

ent t

emp.

sens

orTai

YHUJYH028BAR-A-X YHUJYH036BAR-A-X

102

CO

OLIN

GH

EA

TING

high pressure

switch

low

pressure sw

itch

EE

VFILTER

service valve

service valve

suction sensor

Ts

discharging sensor T

indoor coil

sensorT

middle sensor of

condenserT

evaporator

condensor

3-w

ay stop valve

(gas

side)

3-w

ay stop valve(liquid side)

4-W

AY

VA

LVE

compressor

gas-liquid segerator

FILTER

defrosting sensorT

capillary

heater

indoor am

bient sensorTai

YHUJYH048BAR-A-X YHUJYH048BAS-A-X

103

CO

OLIN

GH

EA

TING

high pressure

switch

low

pressure sw

itch

EE

VFILTER

service valve

service valve

suction sensor

Ts

discharging sensor T

indoor coil

sensorT

middle sensor of

condenserT

evaporator

condensor

3-w

ay stop valve

(gas

side)

3-w

ay stop valve(liquid side)

4-W

AY

VA

LVE

compressor

gas-liquid segerator

FILTER

defrosting sensorT

capillary

heater

indoor am

bient sensorTai

YHUJYH060BAS-A-X

104

SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6 SW1-7 SW1-8 Description0 0 ---- ---- ---- ---- ---- ---- 28K outdoor unit0 1 ---- ---- ---- ---- ---- ---- 36K outdoor unit1 0 ---- ---- ---- ---- ---- ---- 48K outdoor unit1 1 ---- ---- ---- ---- ---- ---- 60K outdoor unit

---- ---- 1 ---- ---- ---- ---- ---- power module choose1---- ---- 0 ---- ---- ---- ---- ---- power module choose2---- ---- ---- 1 ---- ---- ---- ---- DC fan motor---- ---- ---- 0 ---- ---- ---- ---- AC fan motor---- ---- ---- ---- 1 ---- ---- ---- single fan---- ---- ---- ---- 0 ---- ---- ---- double fan---- ---- ---- ---- ---- 1 ---- ---- new communication protocol

---- ---- ---- ---- ---- 0 ---- ---- ld communication protocol

---- ---- ---- ---- ---- ---- 1 ---- 1 phase---- ---- ---- ---- ---- ---- 0 ---- 3 phase---- ---- ---- ---- ---- ---- ---- 1 mute sounds mode valid---- ---- ---- ---- ---- ---- ---- 0 mute sounds mode invalid

PCB 0151800054A dip switch setting

SW6-1 SW6-2 SW6-3 SW6-4 Description0 ---- ---- ---- normalcondition running(default)1 ---- ---- ---- rated condition running

---- 0 ---- ---- normal defrosting(default)---- 1 ---- ---- compulsory defrosting---- ---- 0 ---- normal cooling(default)---- ---- 1 ---- compulsory cooling---- ---- ---- 0 normal heating(default)---- ---- ---- 1 compulsory heating

YHUJYH028BAR-A-X YHUJYH036BAR-A-X YHUJYH048BAR-A-XYHUJYH048BAS-A-X YHUJYH060BAS-A-X

105

3.2 Outdoor frequency control 3.2.1 Compressor running frequency range: 30-91RPS. 3.3 Electronic expansion valve (EEV) control: 3.3.1 Electronic characteristic: Max. open angle 500 Pulse Driving speed PPS 3.3.2 Initialization of EEV EEV driving speed: open direction: 32MS; close direction: 32MS 3.3.3 Open angle limit of EEV

Unit stop Adjustableupper limit

Cool/dry 250（E） 480（E） heat 250（E） 480（E）

3.3.4 6、Standard open angle control In Cool/Dry mode, standard open angle: outdoor ambient temp.≥22, 260pulse (E)

Outdoor ambient temp.≤22, 210pulse (E) In heat mode, standard open angle: outdoor ambient temp.≥6, 240pulses (E)

Outdoor ambient temp. ≤6, 160pulse (E) 3.3.5 When discharging temp. Td is too high or too low, modify the EEV angle

mode Modification process Max.modification

Cooling If TD>106 degree and -1 degree /2 minutes, open angle keeps between 106-50 .

-3

Cooling If TD<50 degree and +1 degree /2 minutes, open angle keeps between 50-106.

+3

Heating If TD>100 degree and -1 degree /2 minutes, open angle keeps between 100-50 .

-3

Heating If TD<50 degree and +1 degree /2 minutes, open angle keeps between 50-100

+3

3.4 4-way valve control in heating 50s later after compressor start up, the 4-way valve start to operate. When compressor stops or unit is not in heating mode, the 4-way valve is closed after compressor stop for 2 minutes and 55s. compressor ON

OFF

4-way valve ON OFF

50 秒（E） 2 minutes and 55s

3.5 Control of defrosting in heating In heating mode, defrosting temp. sensor Te will check the frosting condition of outdoor heat

106

exchanger and make defrosting control. 3.5.1 Enter condition: After the unit is in heating for 10 minutes and compressor run for 45 minutes in all , according to check the defrosting temp. sensor Te and outdoor ambient temp. sensor Tao, if they can meet the following condition, entering in defrosting operation.

1、 5（E）<Tao，Te<=-6（E）； 2、 -6（E）<=Tao<=5，Te≤C×Tao－α； Herein ：α=8（E）;C：Tao＜0，C=0.8; Tao≥0，C=0.6 3.Tao<-6，Te≤-15（E）and defrosting compressor run for 48 minutes in all。

3.5.2 Cancel condition: It will take max. 10minutew from beginning defrosting to quit it. Te sensor will measure the condition of outdoor heat exchanger, if the temp. is over 10 for 60s or is up to 14 for 30s, the defrosting will be over. 3.5.3 Defrosting operation flow chart:

Beginning End

60s 60s

30s inverter compressor indicated FQY defrosting FQY 85 Hz（E） soft startup

50HZ 32HZ 10s

outdoor fan motor ON send signal to indoor unit auto

OFF

4-way valve ON

OFF

ON Unload valve SV1 OFF auto

250pulse（E） PMV auto open angle auto open angle

Indoor fan motor ON OFF anti-cold air function

107

3.6 Frequency control when Td is too high Purpose : make compressor frequency control if the discharging temp. is too high, to low the discharging temp. efficiency and ensure the system can run normally.

3.7、 Frequency control when there is CT over current

3.8 Oil return operation control 3.8.1 Entering condition When the compressor running frequency is lower than 58Hz continuously in all and outdoor unit Tcm is lower than 50 degree for 5 hours, the system will enter oil return operation. In the course of mode changeover, manual unit stop or protective unit stop, the time will be accumulative. After compressor restarts up, the time will counted continuously. In counting time for 5 hour, if the compressor running frequency is over 80Hz for 10 minutes continuously, the time will be cleared. Also after the heating defrosting , the time will be cleared.

If keeps for 10s, the unit stops. 3 minutes later, the unit can re-startup. If in 60 minutes the unit occurs alarm for 3 times, the failure can be eliminated

Reduce FQY rapidly 2HZ/S


Reduce FQY slowly 1HZ/10S

Remain FQY

Increase FQY slowly 1HZ/10S

Dis

char

ging

tem

p. T

d

118

115

112

109

105

95

1.00I

0.95I

0.93I

0.90I

0.88I

0.85I

Stop immediately, if abnormal stop 3 times in an hour, the unit will be stop and alarm .


Reduce FQY rapidly HZ/S

Reduce FQY slowly 1HZ/10S

Remain FQY

Increase FQY slowly 1HZ/10S

108

3.8.2 Procedure Cooling mode: refer to “the oil return procedure in cooling mode”

Heating mode: refer to “the oil return procedure in heating mode” 3.8.3 The protection treatment in oil return operation: In the course of cooling oil return, because of all kinds of protection or abnormal unit stop, after the unit restart, the time will not be cleared, the system need another oil return operation. In the refrigerant flow course in oil return of cooling mode or after oil return, and within 5 minutes after the refrigerant being eliminated is over, the anti-freeze protection and low pressure protection are invalid, other protection is valid. In the course of heating oil return ,because of all kinds of protection or abnormal unit stop, the system need not another oil return operation after the unit stop for 3 minutes and enter in heating mode directly. In the course of changing to cooling oil return, the anti-freeze protection and low pressure protection are invalid, other protection is valid. Oil return procedure in cooling mode:

Quit condition of oil return: 1 minute later after oil return is over

＆ Td‐Tcm＞30 OR OR Ts‐Tc＞30

Tc＜‐35 Max. 10 minutes

Oil return procedure in heating mode:

Send oil return signal oil return beginning oil return over

60 秒 ref.eliminated 30s 80 Hz（E）

40HZ（E） Inverter compressor auto FQY

300pulse（E） outdoor unit PMV auto open angle auto open angle

120pulse（E）

Outdoor fan motor auto operation auto（TC or ambient control） auto operation

running indoor motor auto operation auto（set fan speed） auto operation

stop indoor motor stop stop stop

4-way valve OFF OFF OFF

109

Quit condition of oil return Max. 9 minutes（E）

OR OR Td‐Tcm＜20 for 30s（5 minutes later, begin to count）＆ Ts‐Tc＜15 for 30 秒（5 minutes later, begin to count）

Running for min. 5 minutes（E）

Send oil return signal oil return beginning oil return over

Inverter compressor indicated FQY 60s oil return frequency 120s Soft startup

0HZ 0HZ 5s

outdoor motor auto auto auto（TC control）

4-way valve ON

OFF 15s 450pulse 450 pulse

300pulse（E） PMV auto open angel auto open angle

all indoor motor ON OFF anti-freeze startup

110

5.2 Indoor unit5.2.1 PCB(0151800106) for 28/36/48/60 indoor unit

111

YHDJXH018BAM--GX

A

TO OUT DOOR

0150507096

SW1-1

SW1-7

SW1-8

TYPE DEFINE

OFF

OFF

Cassette

OFF

ON

Convertible(≤24000BTU)

ON

OFF

Duct

ON

ON

Convertible(＞24000BTU)

SW1-2 SW1-3 BTU

B:BLACK

R:RED

W:WHITE

Y/G:YELLOW/GREEN

TEM

P.

SENS

OR

ROOM

SENS

OR

PIPI

NG T

EMP.

RE

MO

TE

REC

EIVE

R

FLO

AT

SWIT

CH

CN5

TR

HEATER

PUMP

SWING

FAN

LEFT/

RIGHT

UP/

DOWN

CN9

CN8

CN7

CN11

PANNEL

REMOTE

CENTRAL CN3

CN1

CN29

CN20 CN18 CN21 CN13 CN12

ON

CN14

CN15

CN10

CN19

T3.15A/250VAC

FUSE

87654321

4321

ON

S

W1

SW

2

Wired

Remote

Controller

RC

2 1

3 B

W

R

Y/G

OFF

OFF

OFF

ON

OFF

OFF

OFF

ON

OFF

ON

ON

OFF

OFF

OFF

ON

ON

OFF

ON

OFF

ON

ON

ON

ON

ON

7000

9000

12000

14000

18000

24000

28000

36000

NOTE1.DASHED PART ARE OPTIONAL.

2. USER SHOULD NOT TO SET SW1 AND SW2.

CH3

CH4

CH5

OFF

OFF

OFF

OFF

SW1-4

SW1-5

SW1-6

OFF

OFF

OFF

OFF

ON

ON

OFF

ON

5.2.2. YHKJXH012/18/24BAM--FX YHFJXH012/18/24BAM--FX YHEJXH024BAR--GX

112

YHEJXH028/36/48BAR--GX

12

3

3H

C

4H

C

5H

C

LN

MM

OC

11N

C

M

NL

HM

3LR

2LR

1LR

91N

C01

NC

51N

C41

NC

7N

C9

NC

8N

C

ETO

MER

LA

RTNE

C

LEN

NAP

NAF

MM

MM

PU

NW

OD

TFELT

HGI

RG

NIWS

TAE

H

PM

UP

ES

UF

V052/A51.3T

DERI

WET

OME

RRELL

ORT

NO

CET

OME

RREVIE

CIER

MO

OR

DR

AC

HCTI

WS TA

OLF

MO

OR

.PMET

ROS

NES

GNIPIP

.PMET

ROS

NES

3N

C02

NC

92N

C2

NC

81N

C12

NC

31N

C21

NC

TIN

U R

OO

DTU

O OT

lanoitpo era trap dehsaD.1:eto

N2

ws dna 1ws tes ton dluohs res

U.2

WR

BG/

Y

WW

B

B

2-1W

S1-1

WS

3-1W

SUT

BN

OFF

ON

ON

ON

OO

NO

NO

FFO

NO

NO

FFO

00082000630008400006

7-1W

SFF

OFF

ON

ON

OFF

ON

ON

OFF

O

epyTettessa

Celbitrevno

Ctcu

Dgnidnats roolF

8-1W

S4-1

WS

5-1W

S

6-1W

S

NO

FFO

NO

FFO

NO

FFO

elbaliava drac moo

Relbaliavanu drac

mooR

ylno looC

pmup tae

Hetasnep

moc erutarepmet hti

Wetasnep

moc erutarepmet tuohti

W

D

ER:

R

KC

ALB:

B

ETIH

W:W

NE

ER

G/W

OLLEY:

G/Y

RT

5N

C

2W

S

1W

S

8379050510

N

R

113

A

TEM

P.

SENS

OR

ROOM

SENS

OR

PIPI

NG T

EMP.

REM

OTE

RE

CEIV

ER

FLOA

T SW

ITCH

ON ON

SW1

SW2

21

3

SW

1-1

SW

1-2

SW

1-3

BTU

OFF

ON

ON

2800

0

ON

ON

ON

3600

0

ON

ON

OFF

4800

0O

NO

NO

FF60

000

Floo

r sta

ndin

g

SW

1-7

SW

1-8

Type

def

ine

Cas

sette

Con

verti

ble

Duc

t

OFF

OFF

ON

ON

ON

OFF

OFF

ON

SW

1-4

OFF

ON ON

SW

1-5

OFF

SW

1-6

ON

OFF

room

car

d un

avai

labl

e

cool

onl

yhe

at p

ump

room

car

d av

aila

ble

With

tem

pera

ture

com

pens

ate

No

tem

pera

ture

com

pens

ate

YHKJXH028/36/48/60BAR--FX YHFJXH028/36/48BAR--FX YHGJXH048/60BAR--GX

114

TEMP.

SENSOR

ROOM

SENSOR PIPING TEMP.

DC

FAN

MO

TOR

SW1

SW2

REMOTE RECEIVER

FLOAT SW

ITCH

ALARM OR AIR EXCHAGELINKAGE

21

3

M

YHDJXH012/18/24BAM--GX

115

5.2.5.. Electrical Control Functions For Cassette and Convertible type 1. Dip switch functions:

A

YHKJXH*BAM--FX，YHFJXH*BAM--FX，YHDJXH024-060BAR--GX

wiring controller address SW2-1 SW2-2 SW2-3 SW2-4

0 0 0 0slave unit 1

slave unit 2

slave unit 3

………… ………… ………… ………… …………

slave unit 15 ON ON ON ON

SW2: wiring controller communication address

when the wiring controller is used to control many units , the wiring controller communicationaddress of indoor unit need be setted

SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6 SW1-7 SW1-8 Description1 0 --- --- --- --- --- 24K indoor

10 --- --- --- --- --- 28K indoor1 1 --- --- --- --- --- 36K indoor

11 --- --- --- --- --- 48K indoor1 1 --- --- --- --- --- 60K indoor--- --- --- 0 --- --- --- --- Room card invalid--- --- --- 1 --- --- --- --- Room card valid(default)--- --- --- --- 0 --- --- --- Cooling only--- --- --- --- 1 --- --- --- Heat pump (default)--- --- --- --- --- 0 --- --- Without tempetature compensation--- --- --- --- --- 1 --- --- With tempetature compensation--- --- --- --- --- --- 1 0 Duct--- --- --- --- --- --- 00 Cassette--- --- --- --- --- --- 0 1 Capinet ≥48K（or convertible ≤24K）

--- --- --- --- --- --- 11 Capinet（or convertible ≥28K）

------------

---

slave unit 4

0 0 0 0

0 0 0 0

0 0 0 0

116

YHDJXH*BAM--GX dip switch setting

SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6 SW1-7 SW1-8 Description011 ――――― 09K indoorunit100 ――――― 12K indoorunit

00 0 ―――― ― 18K indoorunit011 ―――― ― 24K indoorunit――― 00 ―― ― Static pressure Opa――― 0 1 ――― Static pressure10pa

―― ― 1 0 ―― ― Static pressure 20pa―― ― 1 1 ―― ― Static pressure 30pa―――― ― 1 ― ― Room card valid―――― ― 0 ―― Room card invalid――――― ― 0 0 Slim duct（AD**SS1ERA)

1：ON 0：OFF

2. Sign definition:Indoor outdoor

Tai Tc1 Tc2 Tm Tao Toci Tc Te Ts Td

Ambient

temp.

Outlet

pipe

temp.

Inlet

pipe

temp.

mid

coil

temp.

Ambient

temp.

Thick pipe

of heat

exchanger

mid

condenser

temp.

Defrost

temp.

Compressor

suction

temp.

Compressor

discharging

temp.

Tcomp1,2 Tset

Temp. compensation Set

temp.

3. Dry operationTai＜16, indoor unit stops running and sends stop-unit signal to outdoor. Tai≤Tset, indoor motor runs at low speed and sends stop-unit signal to outdoor. 4. Fan operationIndoor fan motor will run as the fan speed set on the remote controller or the wired controller and indoor unit will send the stop-unit signal to outdoor. 5. Auto operation5.1 If the unit enters Auto mode for the first time, the system will adjust the operation mode according to the room temp. and the set temp. When Tai≥Tset, entering auto cooling mode; When Tai＜Tset, entering auto heating mode. 5.2 Auto cooling mode is as the same as the cooling mode. After the thermostat is OFF for 15 minutes, if Tai+ 1+Tcomp2＜Tset, the unit will enter auto heating mode, or the unit will still stay at auto cooling mode and stop when it reaches the set temperature; while the indoor motor will be at low speed. 5.3 Auto heating mode is as the same as the heating mode. After the thermostat is OFF for 15 minutes, if Tai≥Tset+1 +Tcomp1, the unit will enter auto cooling mode, or the unit will still stay at auto heating mode; 5.4 In this mode, the Sleep function is available, run as cooling sleep in cooling mode and as heating sleep in heating mode. Once sleep mode is set, the mode will not change after the unit stops for 15 minutes when it arrives Tset. 5.5 Mode conversion will be confirmed after compressor has stopped for 10 minutes. 6. Abnormal operation6.1 When outdoor modes from the request of indoor unit conflict, the one entering firstly will take priority.

ERA

6.2 After indoor receives the ON command from wired controller, it will firstly confirm the outdoor current operation mode. If they are the same modes, indoor unit will run as the request of remote controller. If they are different modes, the system will forbid to operate, and indoor will keep the OFF mode and send the “standby” signal to wired controller until outdoor stops or outdoor mode the requested mode of wired controller are the same, the unit will run as the requested mode of wired controller. 6.3 After indoor receives the ON command from remote controller, it will firstly confirm the outdoor current operation mode. If they are the same mode, indoor unit will run as the request of remote controller. If they are different modes, the system will forbid to operate, and indoor will keep the OFF mode. After setting on remote controller, if the buzzer sounds two times, that shows abnormal operation. Indoor will run until the outdoor mode and the requested mode of remote controller are the same.

117

6.4 In AUTO mode, when the indoor unit occurs abnormal operation, the indoor unit will keep OFF state, and the buzzer will not sound until the outdoor mode and the requested mode of indoor unit are the same. 6.5 COOL (included AUTO COOL), DRY, FAN are not abnormal mode. 6.6 HEAT and FAN are not abnormal mode. 7. Control for discontinuous operationAfter the unit starts up in cooling/heating mode, in 5 minutes, the compressor run/stop will not be controlled by the room temp., but after changing the set temp., if compressor stop condition can be met, the system will stop compressor immediately. 8. Anti-cold air controlIn heating mode, after compressor startup, the system will control indoor fan motor according to indoor coil temperature. Detailed operation is as below:

Tc2() 30(32) set speed

26(30) low speed

22(26) off

20(20)

Note: 1) The data in the parentheses is the control point when Tao>10;2) Indoor unit will send “pre-heat” signal to wired controller in anti-cold air period.9. Fan motor control in defrosting9.1 On receiving outdoor defrosting signal, indoor unit will stop after blowing remaining heat at slow speed for 20 seconds. 9.2 In defrosting period, indoor fan motor stops running. 9.3 Defrosting is over, and indoor motor will run as anti-cold air state. 10. Blowing remaining heat operationWhen the unit shuts off in heating mode or the thermostat is OFF, indoor motor will stop running after running at low speed for 30 seconds. 11. Swing motor controlIndoor unit will control the swing motor according to the swing signal from the wired controller.

Full OFF 54º

0°

Standard position in HEAT, COOL mode

Swing range54°

118

12. Water pump control12.1 Water pump will be electrified when indoor unit enters non-heating mode until indoor unit stops. 5 minutes later after indoor unit stops, water pump will stop. 12.2 When indoor unit is in heating mode, water pump will not operate. 12.3 In OFF state and in any mode, once float switch signal is measured, indoor unit will send OFF signal to outdoor and send the failure code of drainage system to the wired controller, then the water pump will work until the float switch signal is cancelled. After water pump is forced to run for 5 minutes, indoor unit will be back to normal state. 13. Compulsory defrosting operation13.1 After indoor receives the compulsory defrosting signal, it will send continously the signal to outdoor for 10 times, in this period, indoor unit will work normally and it will enter defrosting operation until it receives the enter-defrost signal from outdoor unit. 13.2 Wired control type: In heating mode, make a jumper for D2 to enter compulsory defrosting. 13.3 Remote control type: In heating mode, high speed, 30, press SLEEP button 6 times, and the buzzer will sound 3 times, then enter the manual defrosting. 14. Trial operation14.1 Enter condition A. Wired control type: In OFF state of COOL or HEAT mode, press ON/OFF button for over 5 seconds to

enter the cooling or heating trial operation; B. Remote control type: In OFF state, keep pressing ON/OFF button until 5 seconds later, the buzzer

sounds twice, then enter the cooling or heating trial operation; 14.2 Response in trial operation A. Cooling trial operation: indoor sends S-CODE=SD to outdoor, indoor: at high speed, set temp: 16; B. Heating trial operation: indoor sends S-CODE=SF to outdoor, indoor: at high speed, set temp: 30; C. In this period, anti-freezed and overheat functions are invalid. 14.3 Quit condition A. Receiving the signal of cancelling trial operation from wired controller or remote controller; B. After trial operation has run for 20 minutes, it will quit trial operation automatically and enter the

normal mode with the set temp.: 24. 15. Timer operation15.1 Wired control type: wired controller will control the unit ON/OFF; 15.2 Remote control type: indoor unit will confirm the unit ON or OFF according to the current clock and the timer clock set by remote controller. When setting timer function, the timer LED will be ON. 16. SLEEP function16.1 Wired control type unit is without sleep function; 16.2 Remote control type unit consists of cooling sleep and heating sleep, after the sleep is set, the unit

A

will change mode; the sleep will begin to count. A. In cooling/dry mode, after running for 1 hour, the set temp. will increase 1, another 1 hour later, the

set temp. will increase 1 again, then 6 hours (or set time-2) later , it will stop. B. In heating mode, after running for 1 hour, the set temp. will reduce 2, another 1 hour later, the set

temp. will reduce 2 again, then 3 hours later, the set temp. will increase 1, and another 3 hours(or set time-5), it will stop.

C. When setting sleep function, indoor motor is forced at low speed.

119

17. Healthy negative ion functionWhen receiving the healthy signal from the wired controller or remote controller, if fan motor is running, the negative ion will work; If the fan motor stops, the negative ion generator will stop. 18. Auto-restart function18.1 Wired control type: jumper J07 at high level, auto-restart is available, if at low level, auto-restart is cancelled; when out of factory, the unit is with auto-restart function. 18.2 Remote control type: In 5 seconds, press SLEEP button(press SWING if without SLEEP button) 10 times continuously, the buzzer will sound 4 times and enter auto-restart function. In 5 seconds, press SLEEP 10 times continuously, the buzzer will sound twice and quit auto-restart function. 18.3 Memory information: ON/OFF state, mode, fan speed, set temp., health, swing position; 18.4 If the memory includes timer or sleep function, when being electrified again, timer and sleep will be cancelled; 18.5 If the memory includes auto mode, when the jumper shows cooling only type, auto mode will change to cooling mode.

A

19. Room card functionThe unit adopts room card function(220VAC input), which only make ON/OFF control. When it is connected, the unit is ON; when it is disconnected, the unit is OFF, and the other parameters will be as default or the data in memory. 19.1 When room card function is available The central control, remote control/wired control and the room card are “AND” logical relationship. On the condition that the room card is connected, the unit can be controlled by remote controller or wired controller; indoor unit will run at the set state by the central controller, remote controller or wired controller; otherwise, if room card is not connected, the unit can not be controlled. 19.2 When room card function is not available The unit will be controlled by the remote controller, the wired controller or the central controller.

120

A. Wired control type unit: this function is not available B. Remote control type unit: In cooling or heating mode, there is always with the temp. compensation. In heating mode: In 24 heating mode, press SLEEP(or SWING) button 7 times continuously within 5 seconds, indoor buzzer sounds twice, that shows temp. compensation works. Switch on the unit in heating mode by the remote controller, press TEMP button to set the set temp., so temperature compensation=the current set temp. - 24. For example, if the set temp. is 24, the temp. compensation is 0; if the set temp. is 25, the temp. compensation is 1. The max. compensation temp. is 6 (the set temp. is 30). If you want to cancel it, set the temp. as 24.

In cooling mode: In 24 cooling mode, press SLEEP(or SWING) button 7 times continuously within 5 seconds, indoor buzzer sounds twice, that shows temp. compensation works. Switch on the unit in heating mode by the remote controller, press TEMP button to set the set temp., so temperature compensation=24-the current set temp. . For example, if the set temp. is 24, the temp. compensation is 0; if the set temp. is 23, the temp. compensation is -1. The max. compensation temp. is -8 (the set temp. is 16). If you want to cancel it, set the temp. as 24.

So the temp. compensation range is +8~-6.

When compressor has run for over 5 minutes, to prevent indoor evaporator freezing (in cooling/dry mode), if indoor mid-coil temp. is below -1 degree for over 5 minutes, indoor EEV will close, and compressor will stop. When indoor mid-coil temp. is over about 10 degree, the unit will be normal.

seconds, indoor will stop; while when indoor mid-coil temp. is below 52 degree for 3 seconds, indoor will resume.

20. Setting method of temperature compensation Tcomp

21. Anti-freezed protection

It is valid only in heating mode, if indoor mid-coil temp. is over about 65 degree continuously for 10 22. Overload protection in heating mode

121

6. Diagnostic code and trouble shooting6.1.1. Diagnostic code for outdoor unit

Flash times ofLED on

mainboardTrouble description Analyze and diagnose

1 Eeprom failure Outdoor main board eeprom fail

2 IPM failure IPM failure

4Communication error between main board and spdu module SPDU Communicition error

Communication fail over 4 min

5 High pressure protection System high pressure over 4.15 Mpa

6

Module over-voltage protection(only for Spdu)Module lack-voltage protection(only for Spdu)

Send from Spdu module

8 Compressor discharging temperature protection

Compressor discharging temperature over 110 centigrade

9 Abnomal of DC motor jam of DC motor or motor failure

10 Abnomal of pipe sensor Piping sensor short-circuit or open-circuit

12 Abnomal of outdoor ambient sensor Outdoor ambient sensor short-circuit or open-circuit

13 Abnormal of compressor dischage sensor

Compressor discharging sensor short-circuit or open-circuit

15 Communication error between indoor and outdoor unit Communication fail over 4 min

16 Lack of refrigerant check if there is leakage in the unit

17 4-way valve reverse failure

Alarm and stop if detect Td-Tci<=15 last for 1min after compressor has started for 10min in heating mode, confirm the failure if it appears 3 times in one hour.

18 Compressor jam (ony for spdu ) Inner compressor is abnormal jamed

19 Module EEV select circuit error Module EEV select wrong circuit

25 Compressor U-phase over-current The current of compressor U-phase is too high

25 Compressor V-phase over-current The current of compressor V-phase is too high

25 Compressor W-phase over-current The current of compressor W-phase is too high

45 Low pressure protection System over pressure under 0.05Mpa

YHUJYH024BAR-A-X

122

PRODUCT DIAGNOSIS PROCEDURE

EEPROM faulty

If it occurs 3 times in 1 hour, confirm the failure, the former twice will not alarm

Over current protection in course of compressor frequency going down detected by software

Non-resumable

Non-resumableresumable

Module abnormal, if it occurs 3 times in 1 hour, confirm the failureprotection of over current in course of compressor fixed speed operation


Module temp. too high or module temp.sensor abnormal

Non-resumable

Non-resumable

Communication abnormal between connecting board and module

It can not get the feedback from module after communicating for 4 minutes resumable

Compressor overcurrentIf it occurs 3 times in 1 hour, confirm the failure, the former twice will not alarm Non-resumable

Compressor blocked or abnormal operation

If it occurs 3 times in 1 hour, confirm the failure, the former twice will not alarm Non-resumable

After compressor starts up, if TD is over 115 , 10 seconds later compressor stops, if it occurs 3 times in 1 hour, confirm the failure

Protection of discharging temp. too high Non-resumable

DC fan motor faulty If it occurs 3 times in 1 hour, confirm the failure, the former twice will not alarm Non-resumable

Sensor is detected below 20 or over 1000 for 60 seconds, but incooling mode,this sensor failure will not be dealt with,and in defrosting or within 6 minutes after defrosting,it will not alarm.

Outdoor defrosting temp. sensor abnormal resumable

Suction temp.sensor abnormal If it occurs 3 times in 1 hour, confirm the failure, the former twice will not alarm

resumable

Ambient temp. sensor abnormal Sensor is detected below 20 or over 1000 for 60 seconds, but in frosting or within 6 minutes after defrosting, it will not alarm resumable

Discharging temp. sensor abnormal After compressor running for 3 minutes, Sensor is detected below 20 or over 1000 for 60 seconds

resumable

Indoor unit can not be inspected for 4 minutes continuously resumablecommunication between indoor and outdoor abnormalLack of refrigerant or discharging pipe blocked

If it occurs 3 times in 1 hour, confirm the failure. Non-resumable

4-way vavle converse abnormal If it occurs 3 times in 1 hour, confirm the failure. Non-resumable

Over current in course of compr-essor frequency going down


Non-resumable


Over current protection in course of compressor fixed speed opera-tion detected by software Non-resumable


Over current protection in course of compressor frequency going up

down detected by software Non-resumable

Non-resumableIf it occurs 3 times in 1 hour, confirm the failure, the former twice will not alarmWithout connection to compressor

High voltage protection for module

From moudle board resumable

resumableFrom module boardLow voltage protection for module

Communication abnormal among modules

It can not detect the input signal for 2 minutes Non-resumable

resumableSensor is detected below 20 or over 1000 for 60 seconds, but in defrosting or within 6 minutes after defrosting, it will not alarm

Mid-condenser temp. sensor abnormal

After compressor running for 3 minutes, if switch is detected unconnected for 30seconds, it alarms, if it occurs 3 times in 1 hour, confirm this failure, if it occurs 3 times in 1 hour, confirm the failure, but in defrosting or within 6 minutes after defrosting, it will not alarm

Low pressure switch abnormal

High pressure switch abnormalAfter compressor running for 3 minutes, if switch is detected uncon-nected for 30seconds, it alarms, if it occurs 3 times in 1 hour, confirm this failure, or if Tcm is over 68 degree for 10 seconds for 3 times

Non-resumable

Note: The flash times of outdoor mainboard(ECU) LED1 indicates the malfuction code. for example, LED1 flash 3 times, the malfuction code is 3.The flash times or malfuction code of indoor unit can also indictes the malfuction code too.the method to confirm please refer to indoor unit manul.

Non-resumable

Malfunction Code Trouble Description Analyze and diagnose Remark

YHUJYH024BAR-A-X YHUJYH028BAR-A-X YHUJYH036BAR-A-X YHUJYH048BAR-A-XYHUJYH048BAS-A-X YHUJYH060BAS-A-X

123

6.1.2. Diagnostic code for indoor unit

Flash times ofTiming LED(orindoor PCBLED4）

Flash times ofRunning LED(orindoor PCBLED3）

Failure code(fromwired controller)

Failurecode(from panelcontroller )

trouble shooting Possible reasons

10 01 E1 Temperature sensorTa faulty

Sensor disconected，or broken，orat wrong position，or short circuit

0 2 02 E2 Temperature sensorTe faulty

Sensor disconected，or broken，orat wrong position，or short circuit

0 4 04 F8 EEPROM WRONG Faulty indoor unit PCB

0 7 07 E9

Abnormalcommunicationbetween indoor andoutdoor units

Wrong connection，or the wires bedisconected，or wrong addresssetting of indoor unit，or faulty powersupply or faulty PCB

80NO EEROR

CODE DISPLAY E8

Abnormalcommunicationbetween indoor wiredcontroller and indoor

Abnormal communication betweenindoor wired controller and indoor unitPCB

0 12 0C E0

unit PCB

Drainage systemabnormal

Pump motor disconnected，or atwrong position，or the float switchbroken down，or the float switchdisconected，or at wrong position.

0 13 OD EF Zero cross sigal wrong Zero cross sigal detected wrong

0 14 0E / Indoor unit DC fanmotor abnormal

DC fan motor disconnected,or DC fanmotor broken,or circuitbroken

0 16 10 F3 Indoor mode abnormal Different from outdoor unit mode2 1 15 / Outdoor unit abnormal2 2 16 / Outdoor unit abnormal2 4 18 / Outdoor unit abnormal2 5 19 / Outdoor unit abnormal2 7 1B / Outdoor unit abnormal2 8 1C / Outdoor unit abnormal2 9 1D / Outdoor unit abnormal3 0 1E / Outdoor unit abnormal3 1 1F / Outdoor unit abnormal3 2 20 / Outdoor unit abnormal3 3 21 / Outdoor unit abnormal3 5 23 / Outdoor unit abnormal3 6 24 / Outdoor unit abnormal3 7 25 / Outdoor unit abnormal3 8 26 / Outdoor unit abnormal3 9 27 / Outdoor unit abnormal4 3 2B / Outdoor unit abnormal4 4 2C / Outdoor unit abnormal4 7 2F / Outdoor unit abnormal4 8 30 / Outdoor unit abnormal4 9 31 / Outdoor unit abnormal5 8 3A / Outdoor unit abnormal5 9 3B / Outdoor unit abnormal6 3 3F / Outdoor unit abnormal6 4 40 / Outdoor unit abnormal

1.. For the indoor failu ，only running LED ON remote receiver will indicate.2.. For the outdoor failu ，timer LED and running LED will indicate.timer LED of remote receiver stands for ten's place,and running LEDstands for one's place.timer LED will flash firstly,2 seconds later,running LED will flash too. Afer that,4 seconds later,they will flash inturns again.Flash times equals to the failure code of outdoor plus20.For example,failure code of outdoor is 2,the indoor unit should display 22.As a result,timer LED flashes twice firstly,then running LEDflashes twice.

To get much more details of outdoor unit failure,Please refer to the the outdoor unit trouble shooting list3.

Refer to the outdoor unit troubleshooting

list

124

6.2. Trouble Shooting: Trouble 1: No display on the operation panel

start

nocheck if display panel and the unit matched well

no no

yes

replace display panel and check again

if the red diode and green diode on indoor PCB flash in turn

yes yes

if the power terminal block is 220V input

check the terminal block and the power supply

PCB is faulty, replace it

check if display panel is 12V power supply

no no nocheck if power wiring is in open circuit

yes yes yes

check if fuse is burnt

PCB is faulty, replace

display panel circuit is damaged, replace it

replace power wiring and check again

replace the fuse and check again

Trouble 2: Sensor failure

start

noas per the wiring diagram,check the connection between sensor and PCB is correct

re-fix the sensor and check again

check if sensor is in open circuit or PCB port is not in good condition

yes

yes yes

no nocheck if sensor resistor value is correct

replace sensor and check again


PCB is faulty and repalce it, check again

125

no

start

as per the wiring diagram, check if communication wiring is correct

yes

yes yes

no no

re-wiring, and check again

check if the communication port connecting to the indoor/outdoor PCB is in open circuit

if the power cable and the communication wire are too close, resulting in the wrong commission data

PCB is faulty, replace and check again

replace the communication connection wire, check again

adjust the distance and check again

Trouble 4: Indoor PCB EEPROM data is wrong

1.If the failure occurs when being electrified for the first time, that shows EEPROM (8-bit pin) not fixed firmly or

damaged.

2.If the failure occurs when running, that shows EEPROM is faulty and need to be replaced.

Trouble 5: Indoor repeated unit number

Check the failure code on outdoor indicator board (5-lamp)

Trouble 3: Communication failure between indoor and outdoor

Trouble 5: Outdoor unit failure

start

no

yes

no no

yes

as per the wiring diagram, check if connection port between sensor and PCB is correct

re-fix the sensor and check again

check if the sensor is in open circuit or the connection port to PCB is in good condition

check if the sensor resistor value is correct



PCB is faulty and repalce it, check again

yes

Trouble 6: Outdoor unit alarms sensor failure

126

rotor, compressor great vibration, compressor abnormal startup, state detecting curcuit abnormal or

compressor damaged.

The former twice failure can be resumed automatically, if outdoor board occurs this failure always, and

can not be resumed for a long time, that shows:

1. Power module (SPDU) damaged, please replace the power module, then re-wiring as per the wiring

diagram (70% possibility)

2. Short circuit in power board results in the power module damaged (15％ possibility)

3. Damaged compressor results in this failure (10％ possibility)

4. Main control board is faulty, replace it (5％ possibility)

Trouble 10: High pressure failure

Reasons:

1. Over high system pressure results that the unit stop, and the compressor protection will work. The

failure can be resumed.

2. Pressure switch wire is not fixed well or in open circuit.

start

nocheck if the connector between pressure switch and PCB is fixed badly or damaged

no no

no

yes yes yes

check if the 2 straight lugs on the pressure switch are in good condition

if outdoor fan motor cannot startup normally in cooling mode

replace main control board and check again

replace pressure switch connector, shut off and be electrified again, re-check

replace pressure switch connector, shut off and be electrified again, re-check

check if the outdoor motor has power input

replace outdoor motor and check again

Trouble 7: AC current over current protection or current transducer damaged, or compressor blocked

127

7. Outdoor performance curves

2.00

3.00

4.00

5.00

6.00

7.00

8.00

10/6 21/15 25/18 32/20 38/24 43/26 46/26 53/32Outdoor DB(）

Capa

city（

KW)

18/1220/14.522/1625/1827/1930/2232/23

5.00

5.50

6.00

6.50

7.00

7.50

8.00

8.50

-7/-8 -5/-6 2/1.5 7/6 11/9 16/12 19/15 24/18Ourdoor DB(）

Capa

city （

KW)

16/1018/1220/14.522/1624/1726/18

YHUJYH024BAR-A-X heating capacity curves

YHUJYH024BAR-A-X cooling capacity curves

128

Heating capacity curves

4000

5000

6000

7000

8000

9000

10000

11000

12000

16/10 18/12 20/14.5 21/15 22/16 24/17 26/18

indoor DB/WB

Hea

ting

capa

city

(W)

-6/-7-4/-5-1/-21/06/57/612/1016/15

Cooling capacity curves

3000

4000

5000

6000

7000

8000

9000

10000

18/12 20/14 22/16 25/18 27/19 30/22 32/24

indoor DB/WB

Coo

ling

capa

city

(W)

-52025323540

YHUJYH028BAR-A-X

129

0500

100015002000250030003500400045005000550060006500700075008000850090009500

10000105001100011500120001250013000

16/10 18/12 20/14.5 21/15 22/16 24/17 26/18indoor WB/DB

-6/-7 heatingcapacity-6/-7 powerinput-4/-5 heatingcapacity-4/-5 powerinput0/-1 heatingcapacity0/-1 power input

2/1 heatingcapacity2/1 power input



12/10 heatingcapacity12/10 powerinput16/15 heatingcapacity16/15 powerinput

43

0500

100015002000250030003500400045005000550060006500700075008000850090009500

10000105001100011500120001250013000

12/18 14/20 16/22 18/25 19/27 22/30 24/32

indoor WB/DB

cool

ing

capa

city

(W)/p

ower

inpu

t(W)

20 cooling capacity

20 power input

25 cooling capacity

25 power input

32 cooling capacity

32 power input

35 cooling capacity

35 power input

40 cooling capacity

40 power input

YHUJYH036BAR-A-X heating capacity curves

YHUJYH036BAR-A-X cooling capacity curves

YHUJYH036BAR-A-X

130

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

11000

12000

13000

14000

15000

16000

17000

18000 ‐6/‐7 heating capacity‐6/‐7 power input‐4/‐5 heating capacity‐4/‐5 power input‐1/‐2 heating capacity‐1/‐2 power input1/0 heating capacity1/0 power input

6/5 heating capacity6/5 power input


12/10 heating capacity12/10 power input27/18 heating capacity

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

11000

12000

13000

14000

15000

16000

18/12 20/14 22/16 25/18 27/19 30/22 32/23

20/15 cooling capacity

20/15 power input


25/18 power input


32/23 power input


35/24 power input


40/26 power input

16/10 18/12 20/14.5 21/15 22/16 24/17 26/18 27/18 power inputindoor WB/DB

YHUJYH048BAS-A-X heating capacity curves

cooling capacity curves

indoor WB/DB

YHUJYH048BAS-A-X

131

Ourdoor DB(）

YHUJYH060BAS-A-X cooling capacity curves

Outdoor DB(）

YHUJYH060BAS-A-X heating capacity curves

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

11000

12000

13000

14000

15000

16000

17000

18000

19000 ‐6/‐7 heating capacity‐6/‐7 power input‐4/‐5 heating capacity‐4/‐5 power input‐1/‐2 heating capacity‐1/‐2 power input1/0 heating capacity1/0 power input



12/10 heating capacity12/10 power input27/18 heating capacity

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

11000

12000

13000

14000

15000

16000

17000

18/12 20/14 22/16 25/18 27/19 30/22 32/23


20/15 power input


25/18 power input


32/23 power input


35/24 power input


40/26 power input

16/10 18/12 20/14.5 21/15 22/16 24/17 26/18 27/18 power input

132

8.1 AB8. Indoor air velocity and temperature distribution curves

Cooling / Air Velocity DistributionCoolingBlowy angle:25Air Velocity Distribution

a.

CoolingBlowy angle:25Temperature Distribution

b. Cooling / Temperature Distribution

133

Air Velocity Distribution

CoolingBlowy angle:25

Temperature Distribution

CoolingBlowy angle:25

a. Cooling / Air Velocity Distribution

b. Cooling / Temperature Distribution

1.5m/s

1.0m/s

0.5m/s

8.2 For AC

134

9. Air flow and static pressure chart

1200130014001500160017001800190020002100220023002400

0 10 20 30 40 50 60 70 80 90 100

external static pressure

super high speedhigh speedmiddle speedlow speed

YHEJXH028/036BAR--GX external static pressure curves

100

90

80

70

60

50

40

30

20

10

00 200 20001200800400 600 1000 16001400 1800

3

2

1

1

3

2

External static pressure(Pa)

Air flow(m/h)3

high speedmid speedlow speed

YHDJXH024BAR--GX external static pressure curves

135

140

130

120

110

100

90

80

70

60

50

400 300 300018001200600 900 1500 24002100 2700

Air flow（m/h）3

3

2

1

low speed

mid speed

high speed1

3

2

External static pressure(Pa)YHGJXH048BAR--GX external static pressure curves

136

10. Noise level

;< $ / &&(!$

;< $ / 0

!+ ( / #$ , !& 0 )+ $ #$ $, !$0# 0 0#!,)$0+ $ &$3$& 3! $ 1, #$ !0(!& 1!0 (0# ! ,(0($- $0+

(3)

a. Casset type indoor unit

Test method According to the testing illustrator, the microphones wearing sponge style cover should be

placed in the right position

137

8111417202326293235384144475053

2531

.540

5063

8010

012

516

020

025

031

540

050

063

08

00

1000

1250

1600

2000

2500

3150

4000

5000

6300

8000

1000

012

500 16

0000

2000

0

Third

oct

ave

band

freq

uenc

y H

z

Sound pressure level DB

heat

ing

low

heat

ing

mid

dle

heat

ing

high

cool

ing

low

cool

ing

mid

dle

cool

ing

high

fan

low

fan

mid

dle

fan

high

2531

.540

5063

8010

012

516

020

025

031

540

050

063

08

00

1000

1250

1600

2000

2500

3150

4000

5000

6300

8000

1000

012

500 16

0000

2000

0

Third

oct

ave

band

freq

uenc

y H

z

heat

ing

low

heat

ing

mid

dle

heat

ing

high

cool

ing

low

cool

ing

mid

dle

cool

ing

high

fan

low

fan

mid

dle

fan

high

Noi

se le

vel-Y

HK

JXH

028B

AR

--FX

Noi

se le

vel-Y

HK

JXH

024B

AR

--FX

138

Noi

se le

vel-Y

HK

JXH

048B

AR

--FX

0102030405060

25

40

63

100

160

250

400

630

1000

1600

2500

4000

6300

1000

0

1600

0

third

oct

ave

band

freq

uenc

y H

z

sound pressure level DB

cool

ing

high

cool

ing

med

cool

ing

low

heat

ing

high

heat

ing

med

heat

ing

low

fan

high

fan

med

fan

low

101316192225283134374043464952

2531

.540

5063

8010

012

516

020

025

031

540

050

063

080

010

0012

5016

0020

0025

0031

5040

0050

0063

0080

0010

000

1250

0 1600

0020

000

Third

oct

ave

band

freq

uenc

y H

z


heat

ing

low

heat

ing

mid

dle

heat

ing

high

cool

ing

low

cool

ing

mid

dle

cool

ing

high

fan

low

fan

mid

dle

fan

high

Noi

se le

vel-Y

HK

JXH

036B

AR

--FX

139

Noi

se le

vel-Y

HK

JXH

060B

AR

--FX

81216202428323640444852566064

2531

.5

40

50

63

80

100

125

160

200

250

315

400

500

630

800

1000

1250

1600

2000

2500

3150

4000

5000

6300

8000

1000

0 1251

0060

000

2000

0

Third

oct

ave

band

freq

uenc

y H

z


heat

ing

low

heat

ing

mid

dle

heat

ing

high

cool

ing

low

cool

ing

mid

dle

cool

ing

high

fan

low

fan

mid

dle

fan

high

140

b. Convertible type indoor unit

(3) Test method According to the testing illustrator, the microphones wearing sponge style cover should be


141

10

15

20

25

30

35

40

45

50

2531

.540

5063

8010

012

516

020

025

031

540

050

063

080

010

0012

5016

0020

0025

0031

5040

0050

0063

0080

0010

000

1250

10

6000

020

000

Third o

ctave

band fre

quency

Hz


heatin

g lo

wheatin

g m

iddle

heatin

g h

igh

coolin

g lo

wco

olin

g m

iddle

coolin

g h

igh

fan lo

wfa

n m

iddle

fan h

igh

Nois

e le

vel-

YH

FJX

H028/0

36B

AR

--F

X

1/3

oct

ave

band n

ois

e le

vel-

YH

FJX

H024B

AR

--F

X

8.0

13

.0

18

.0

23

.0

28

.0

33

.0

38

.0

43

.0

48

.0

53

.0

25.0

31.5

40.0

50.0

63.0

80.0

100.

012

5.0

160.

020

0.0

250.

031

5.0

400.

050

0.0

630.

080

0.0

1000

.0

1250

.0

1600

.0

2000

.0

2500

.0

3150

.0

4000

.0

5000

.0

6300

.0

8001

0.0

0000

1.0

2500

1.0

6000

2.0

0000

.0

third o

cta

ve b

and fre

quency H

z


coolin

g h

igh

coolin

g m

ed

coolin

g low

fan h

igh

fan m

ed

fan low

heating h

igh

heating m

ed

heating low

142

-64

Noi

se le

vel-Y

HFJ

XH

060B

AR

--FX

10152025303540455055

2531

.5

40

50

63

8010

0

125

160

200

250

315

400

500

630

800

1000

1250

1600

2000

2500

3150

4000

5000

6300

8000

1000

0 1215

0060

000

2000

0

Third

oct

ave

band

freq

uenc

y H

z


heat

ing

low

heat

ing

mid

dle

heat

ing

high

cool

ing

low

cool

ing

mid

dle

cool

ing

high

fan

low

fan

mid

dle

fan

high

Nois

e level-

YH

FJX

H048B

AR

--F

X

0

10

20

30

40

50

60

2540

6310

016

025

040

063

010

0016

0025

0040

0063

0010

000

1600

0

third o

cta

ve b

and fre

quency H

z


cooling h

igh

cooling m

ed

cooling low

heating h

igh

heating m

ed

heating low

fa

n h

igh fan

med fan low

143

(3)

c. Duct type indoor unit

Test method According to the testing illustrator, the microphones wearing sponge style cover should be


144

15

19

23

27

31

35

39

43

47

51

55

59

63

2531

.5

40

50

63

80

100

125

160

200

250

315

400

500

630

800

1000

1250

1600

2000

2500

3150

4000

5000

6300

8000

1000

012

500 16

0000

2000

0

Th

ird

oct

ave

ba

nd

fre

qu

en

cy H

z


he

atin

g lo

w

he

atin

g m

idd

le

he

atin

g h

igh

sup

er

he

atin

gh

igh

coo

ling

low

coo

ling

mid

dle

coo

ling

hig

h

sup

er

coo

ling

hig

hfa

n lo

w

fan

mid

dle

8.0

13

.01

8.0

23

.02

8.0

33

.03

8.0

43

.04

8.0

53

.0

25.0

31.5

40.0

50.0

63.0

80.0

100.0

125.0

160.0

200.0

250.0

315.0

400.0

500.0

630.0

800.0

1000

.012

50.0

1600

.020

00.0

2500

.031

50.0

4000

.050

00.0

6300

.080

00.0 10

000.0

1250

0.016

000.0

2000

0.0

third

oct

ave

ba

nd

fre

qu

en

cy H

z


coolin

g s

uper

hig

hco

olin

g h

igh

coolin

g m

ed

coolin

g lo

wfa

n s

uper

hig

hfa

n h

igh

fan m

ed

fan lo

wheatin

g s

uper

hig

hheatin

g h

igh

heatin

g m

ed

heatin

g lo

w

1/3

oct

ave

ban

d n

ois

e le

vel-

YH

DJX

H024B

AR

--G

X

No

ise

leve

l--Y

HE

JXH

02

8/0

36

BA

R--

GX

145

Nois

e le

vel-

YH

GJX

H048B

AR

--G

X

01 02 03 04 05 06 0

25

40

63

100

160

250

400

630

1000

1600

2500

4000

6300

1000

016

000

third o

ctave

band fre

quency

Hz


coo

ling

hig

h

coo

ling

me

d

coo

ling

low

h

ea

ting

hig

h

he

atin

g m

ed

h

ea

ting

low

fa

n h

igh

fa

n m

ed

fa

n lo

w

29

third

oct

ave

band

freq

uenc

y H

z

1/3

octa

ve b

and

nois

e le

vel-Y

HG

JXH

060B

AR

--G

X

8.0

13.0

18.0

23.0

28.0

33.0

38.0

43.0

48.0

53.0

58.0

25.0

31.5

40.0

50.0

63.0

80.0

100.0

125.0

160.0

200.0

250.0

315.0

400.0

500.0

630.0

800.0

1000

.012

50.0

1600

.020

00.0

2500

.031

50.0

4000

.050

00.0

6300

.080

00.10

0000

.1025

00.10

6000

.2000

00.0


cool

ing

high

cool

ing

med

cool

ing

low

fan

high

fan

med

fan

low

heat

ing

high

heat

ing

med

heat

ing

low

third o

ctave

band fre

quency

Hz

146

# $

# $

% & ' ( )% # ' (' '()% * +( ' + ' ( , %

(

Test method 1. Set the unit: 1) the unit is placed on the rubber whose thickness is 5mm; 2) if the

height between the air outlet and ground is less than 1m, block the unit up to 1m.farfrom ground

2. Test position: After setting the unit ,the test position for the noise is 1m far from thefront panel

147

0.0

5.0

10

.01

5.0

20

.02

5.0

30

.03

5.0

40

.04

5.0

50

.05

5.0

60

.0

25.0

31.5

40.0

50.0

63.0

80.0

100.

012

5.0

160.

020

0.0

250.

031

5.0

400.

050

0.0

630.

080

0.0 10

00.0 12

50.0 16

00.0 20

00.0 25

00.0 31

50.0 40

00.0 50

00.0 63

00.0 80

00.0 10

000.

0 1250

0.0 16

000.

0 2000

0.0

third

octa

ve

ba

nd

fre

qu

en

cy H

z

Sound pressure level DBco

olin

g/9

8H

z/r

ate

83

0r/

min

co

olin

g/1

06

Hz/r

ate

83

0r/

min

co

olin

g/1

10

Hz/r

ate

83

0r/

min

he

atin

g/9

6H

z/r

ate

83

0r/

min

he

atin

g/1

10

Hz/r

ate

83

0r/

min

co

olin

g/1

05

Hz/r

ate

83

0r/

min

he

atin

g/1

05

Hz/r

ate

83

0r/

min

510152025303540455055606570

25.0

31.5

40.0

50.0

63.0

80.0

100.0

125.0

160.0

200.0

250.0

315.0

400.0

500.0

630.0

800.0

1000

.012

50.0

1600

.020

00.0

2500

.031

50.0

4000

.050

00.0

6300

.080

00.0

1000

0.012

500.0

1600

0.020

000.0

third

oct

ave

band

freq

uenc

y H

z


cool

ing

high

cool

ing

med

cool

ing

low

fan

high

fan

med

fan

low

heat

ing

high

heat

ing

med

heat

ing

low

1/3

octa

ve b

and

nois

e le

vel-Y

HU

JYH

036B

AR

-A-X

48

510152025303540455055606570

25.0

31.5

40.0

50.0

63.0

80.0

100.0

125.0

160.0

200.0

250.0

315.0

400.0

500.0

630.0

800.0

1000

.012

50.0

1600

.020

00.0

2500

.031

50.0

4000

.050

00.0

6300

.080

00.0

1000

0.012

500.0

1600

0.020

000.0

third

oct

ave

band

freq

uenc

y H

z


cool

ing

high

cool

ing

med

cool

ing

low

fan

high

fan

med

fan

low

heat

ing

high

heat

ing

med

heat

ing

low

1/3

octa

ve b

and

nois

e le

vel-

no

ise

le

ve

l-Y

HU

JY

H0

24

BA

R-A

-X

1YH

UJY

H02

8BA

R-A

-X

148

1/3

octa

ve

ba

nd

le

ve

l-1

YH

UJY

H0

48

BA

S-A

-X

0

10

20

30

40

50

60

70

80

2531

.5

40

50

63

8010

012

516

020

025

031

540

050

063

080

010

0012

5016

0020

0025

0031

5040

0050

0063

0080

0010

000 12

500 16

000 20

000

third o

cta

ve b

and fre

quency H

z


cooling

hig

hcooling

med

cooling

low

heating

hig

hheating

med

heating

low

26101418222630343842465054586266707478


third

oct

ave

band

fre

quen

cy H

z

nois

e le

vel-Y

HU

JY

H060B

AS

-A-X

cool

ing

high

heat

ing

high

149

11. Sensor characteristic

model name code characteristic1. Sensor characteristic

model name code characteristicOutdoor ambient temperaturesensor 0010450192 R25=10KΩ±3%

B25/50=3700K±3%

Defrost temperature sensor 0010450194 R25=10KΩ±3%B25/50=3700K±3%

Discharge temperature sensor 0010451303 R80=50KΩ±3%B25/50=4450K±3%

S ti t t 0010451307 R25=10KΩ±3%，Suction temperature sensor 0010451307 R25 10KΩ±3%，

B25/50=3700K±3%

Piping temperature sensor 0010451329 R25=10KΩ±3%，B25/50=3700K±3%

R25 23KΩ 2 5%

YHUJYH028/36BAR-A-X

YHUJYH048BAR-A-XYHUJYH048BAS-A-XYHUJYH060BAS-A-X

Indoor ambient temperature sensor 001A3900159 R25=23KΩ±2.5%，B25/50=4200K±3%

coil temp. sensor 001A3900006 R25=10KΩ±3%，B25/50=3700K±3%

YHKJXH028BAR--FXYHKJXH036BAR--FXYHKJXH048BAR--FXYHKJXH060BAR--FXYHFJXH012BAM--FXYHFJXH018BAM--FXYHFJXH024BAR--FXYHFJXH028BAR--FXYHFJXH036BAR--FXYHFJXH048BAR--FXYHFJXH060BAR--FXYHDJXH012BAM--GXYHDJXH018BAM--GXYHDJXH024BAR--GXYHEJXH024BAR--GXYHEJXH028BAR--GXYHEJXH036BAR--GXYHGJXH048BAR--GXYHEJXH048BAR--GXYHGJXH060BAR--GX

YHUJYH024BAR-A-X

001A3900062E

temperature sensor 001A3900056

Defrost temperature sensor 0010450194

Outdoor ambient temperaturesensor 001A3800082E

R25=10KΩ±3%，B25/50=3700K±3%

B25/50=3700K±3%R25=10KΩ±3%，

B25/50=3700K±3%R25=10KΩ±3%，

B25/50=3700K±3%

Suction temperature sensor

DischargeR25=50KΩ±3%，

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