Hisense AUD-18HX4SUNL1 Technical & Service Manual
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Hisense AUD-18HX4SUNL1 Technical & Service Manual

Hisense AUD-18HX4SUNL1 Technical & Service Manual

On/off unitary air conditioners. low-ambient temperature series
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TECHNICAL&SERVICE MANUAL
MODEL:
(Low-Ambient Temperature Series)
AUD-18HX4SUNL1
AUD-24HX4SZLH1
AUD-36HX6SAHH1
AUD-48HX6SEHH1
AUD-60HX6SPHH1
AUC-18HR4SUAA1
AUC-24HR4SZGA1
AUC-36HR6SAGA1
AUC-48HR6SEHA1
AUC-60HR6SPHA1
AUV-18HR4SUA1
AUV-24HR4SZA1
AUV-36HR6SAB1
AUV-48HR6SEC1
AUV-60HR6SPC1
—ON/OFF UNITARY AIR CONDITIONERS
AUD-18HX4SUNL
AUD-24HX4SZLH
AUD-36HX6SAHH
AUD-48HX6SPHH
AUD-60HX6SPHH
AUC-18HR4SUAA
AUC-24HR4SZGA
AUC-36HR6SAGA
AUC-48HR6SPHA
AUC-60HR6SPHA
AUV-18HR4SUA
AUV-24HR4SZA
AUV-36HR6SAB
AUV-48HR6SPC
AUV-60HR6SPC
V5.0

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Summary of Contents for Hisense AUD-18HX4SUNL1

  • Page 1 TECHNICAL&SERVICE MANUAL V5.0 —ON/OFF UNITARY AIR CONDITIONERS MODEL: (Low-Ambient Temperature Series) AUD-18HX4SUNL AUD-18HX4SUNL1 AUD-24HX4SZLH AUD-24HX4SZLH1 AUD-36HX6SAHH AUD-36HX6SAHH1 AUD-48HX6SPHH AUD-48HX6SEHH1 AUD-60HX6SPHH AUD-60HX6SPHH1 AUC-18HR4SUAA1 AUC-18HR4SUAA AUC-24HR4SZGA1 AUC-24HR4SZGA AUC-36HR6SAGA1 AUC-36HR6SAGA AUC-48HR6SEHA1 AUC-48HR6SPHA AUC-60HR6SPHA1 AUC-60HR6SPHA AUV-18HR4SUA1 AUV-18HR4SUA AUV-24HR4SZA1 AUV-24HR4SZA AUV-36HR6SAB1 AUV-36HR6SAB AUV-48HR6SEC1 AUV-48HR6SPC AUV-60HR6SPC1...

  • Page 2: Table Of Contents

    ON/OFF Unitary Air Conditioner Technical & Service Manual Table of Contents Table of Contents Page Page 1.General 1-1 Features 1-2 Product Lineup 1-3 Model Identification 1-4 Product Picture 2．SPECIFICATION 3．OUTLINES AND DIMENSIONS 3-1 INDOOR 3-2 OUTDOOR 4． DIAGRAM&DATA 4-1 Refrigerant Flow Diagram 4-2MAX.
  • Page 3 8．CHECKING COMPONENTS 8-1 Check Refrigerant System 8-2 Check Parts Unit...

  • Page 4: General

    1-1 Feat tures Duct t Type Ai r Conditio oner eatures Save Inst tallation Spac indoor unit c can be install led inside the e ceiling con nveniently. Optional S Static Pressu 8k: optional 1 10Pa /30Pa, 24K/36K 50 0Pa/80Pa 48 K/60K: 80Pa a/120Pa stati ic Pressure.
  • Page 5 Self Recovery of Power Break When the power supply is recovered after break, all preset are still effective and the air-conditioner can run according to the original setting. Fault Self-diagnose Function When there is something wrong with the air-conditioner，the micro computer could diagnose the faults, which can be read from the display and is convenient for maintenance.
  • Page 6 Cassette T Type Air C Condition eatures Save Inst tallation Spac The indoo or unit can b be installed in nside the ceil ling convenie ently. High Effic ciency and E nvironment F Friendly New w Refrigerant- -R410A R410A ca an protect th e environme ent and do no...
  • Page 7 Ceiling &Floor Air Conditioner Features Save Installation Space The indoor unit’s thickness is only 230mm,can be installed inside the ceiling conveniently. Flexible Installation Options According to the actual installation space,The indoor unit can be installed in the ceiling or on the floor. One unit, Two installation method. High Efficiency and Environment Friendly New Refrigerant-R410A R410A can protect the environment and do not harm to the ozone layer.
  • Page 8 Fault Self-diagnose Function When there is something wrong with the air-conditioner, the micro computer could diagnose the faults, which can be read from the display and is convenient for maintenance.   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...

  • Page 9: Product Lineup

    1-2 Product Lineup Type Model Duct Type AUD- ● ● ● ● ● Cassette Type AUC- ● ● ● ● ● Ceiling&Floor AUV- ● ● ● ● ● type   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...

  • Page 10: Model Identification

    1-3 MODEL IDENTIFICATION A U C -18 U R 4 S Z A A 1 serial number K:Outdoor Unit Indetification G:Indoor Unit Indetification S:Refrigement R410A F:Refrigement R22 4:220V-240V/50HZ/1P 6:380V-415V/50HZ/3P X: Wire Romote Controller R:Wireless Romote Controller U:DC-Invert Heat Pump Type H:Heat Pump Type C:Cooling Only Cool Capacity:18x10 Btu/h Type:D-Duct Type,C-Cassette Type,V-Ceiling&Floor Type,W-Outdoor Unit Unit...
  • Page 11 -4 Produ ct Picture uct Typ AUD-18HX X4SUNL UD-24HX4SZLH AUD-36HX 6SAHH odel AUD-18HX 4SUNL1 UD-24HX4SZLH AUD-36HX6 6SAHH1 door tdoor UD-48HX6SPHH odel AUD-48HX 6SEHH1 UD-60HX6SPHH UD-60HX6SPHH door   tdoor     ON/OF FF UNITARY AIR R CONDITIONER R TECHNICAL& S SERVICE MANU UAL V5.0...
  • Page 12 assette T AUC-18HR R4SUAA UC-24HR4SZGA AUC-36HR 6SAGA odel AUC-18HR R4SUAA1 UC-24HR4SZGA AUC-36HR6 6SAGA1 door tdoor UC-48HR6SPHA odel AUC-48HR R6SEHA1 UC-60HR6SPHA UC-60HR6SPHA   door tdoor         ON/OF FF UNITARY AIR R CONDITIONER R TECHNICAL& S SERVICE MANU UAL V5.0...

  • Page 13: Indoor

    Ceiling&Floor Type AUV-18HR4SUA AUV-24HR4SZA AUV-36HR6SAB Model AUV-18HR4SUA1 AUV-24HR4SZA1 AUV-36HR6SAB1 Indoor Outdoor AUV-48HR6SPC Model AUV-48HR6SEC1 AUV-60HR6SPC AUV-60HR6SPC1 Indoor   Outdoor       ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 14 DISPLAY PANEL Cassette Type 18k      24K，36K，48K，60K                                ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 15 Ceiling&Floor type                                       ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 16 1-1 Feat tures Duct t Type Ai r Conditio oner eatures Save Inst tallation Spac indoor unit c can be install led inside the e ceiling con nveniently. Optional S Static Pressu 8k: optional 1 10Pa /30Pa, 24K/36K 50 0Pa/80Pa 48 K/60K: 80Pa a/120Pa stati ic Pressure.
  • Page 17 Self Recovery of Power Break When the power supply is recovered after break, all preset are still effective and the air-conditioner can run according to the original setting. Fault Self-diagnose Function When there is something wrong with the air-conditioner，the micro computer could diagnose the faults, which can be read from the display and is convenient for maintenance.
  • Page 18 Cassette T Type Air C Condition eatures Save Inst tallation Spac The indoo or unit can b be installed in nside the ceil ling convenie ently. High Effic ciency and E nvironment F Friendly New w Refrigerant- -R410A R410A ca an protect th e environme ent and do no...
  • Page 19 Ceiling &Floor Air Conditioner Features Save Installation Space The indoor unit’s thickness is only 230mm,can be installed inside the ceiling conveniently. Flexible Installation Options According to the actual installation space,The indoor unit can be installed in the ceiling or on the floor. One unit, Two installation method. High Efficiency and Environment Friendly New Refrigerant-R410A R410A can protect the environment and do not harm to the ozone layer.
  • Page 20 Fault Self-diagnose Function When there is something wrong with the air-conditioner, the micro computer could diagnose the faults, which can be read from the display and is convenient for maintenance.   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 21 1-2 Product Lineup Type Model Duct Type AUD- ● ● ● ● ● Cassette Type AUC- ● ● ● ● ● Ceiling&Floor AUV- ● ● ● ● ● type   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 22 1-3 MODEL IDENTIFICATION A U C -18 U R 4 S Z A A 1 Serial Number K:Outdoor Unit Indetification G:Indoor Unit Indetification S:Refrigerant R410A F:Refrigerant R22 4:220V-240V/50HZ/1P 6:380V-415V/50HZ/3P X: Wire Remote Controller R:Wireless Remote Controller U:DC-Invert Heat Pump Type H:Heat Pump Type C:Cooling Only Cool Capacity:18x10 Btu/h Type:D-Duct Type,C-Cassette Type,V-Ceiling&Floor Type,W-Outdoor Unit Unit...
  • Page 23 -4 Produ ct Picture uct Typ AUD-18HX X4SUNL UD-24HX4SZLH AUD-36HX 6SAHH odel AUD-18HX 4SUNL1 UD-24HX4SZLH AUD-36HX6 6SAHH1 door tdoor UD-48HX6SPHH odel AUD-48HX 6SEHH1 UD-60HX6SPHH UD-60HX6SPHH door   tdoor     ON/OF FF UNITARY AIR R CONDITIONER R TECHNICAL& S SERVICE MANU UAL V5.0...
  • Page 24 assette T AUC-18HR R4SUAA UC-24HR4SZGA AUC-36HR 6SAGA odel AUC-18HR R4SUAA1 UC-24HR4SZGA AUC-36HR6 6SAGA1 door tdoor UC-48HR6SPHA odel AUC-48HR R6SEHA1 UC-60HR6SPHA UC-60HR6SPHA   door tdoor         ON/OF FF UNITARY AIR R CONDITIONER R TECHNICAL& S SERVICE MANU UAL V5.0...
  • Page 25 Ceiling&Floor Type AUV-18HR4SUA AUV-24HR4SZA AUV-36HR6SAB Model AUV-18HR4SUA1 AUV-24HR4SZA1 AUV-36HR6SAB1 Indoor Outdoor AUV-48HR6SPC Model AUV-48HR6SEC1 AUV-60HR6SPC AUV-60HR6SPC1 Indoor   Outdoor       ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 26 DISPLAY PANEL Cassette Type 18k      24K，36K，48K，60K                                ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 27 Ceiling&Floor type                                       ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 28 2. Specifications 2.1Duct Type On/Off Unitary Indoor Unit AUD-18HX4SUNL AUD-24HX4SZLH AUD-36HX6SAHH AUD-48HX6SPHH AUD-60HX6SPHH Indoor model： AUD-18HX4SNL AUD-24HX4SLH AUD-36HX4SHH AUD-48HX4SHH AUD-60HX4SHH Outdoor model： AUW-18H4SU AUW-24H4SZ AUW-36H6SA AUW-48H6SP AUW-60H6SP Performance Cooling Capacity (W) 5000 7400 10200 14000 16000 Heating Capacity (W) 5500 7900 11250 15000...
  • Page 29 AUD-18HX4SUNL AUD-24HX4SZLH AUD-36HX6SAHH AUD-48HX6SPHH AUD-60HX6SPHH Indoor model： AUD-18HX4SNL AUD-24HX4SLH AUD-36HX4SHH AUD-48HX4SHH AUD-60HX4SHH Outdoor model： AUW-18H4SU AUW-24H4SZ AUW-36H6SA AUW-48H6SP AUW-60H6SP Other Dimensions Indoor WxHxD 900×190×447 900×270 ×720 1386×350×800 1386×350×800 1386×350×800 Unit (mm) Weight Indoor (Kg) Unit Packing Dimensions Indoor 1070X236X580 1170X340X870 1550×410×940 1550×410×940 1550×410×940...
  • Page 30 On/Off Unitary Indoor Unit (Low temp.) AUD-18HX4SUNL AUD-24HX4SZLH AUD-36HX6SAHH AUD-48HX6SEHH AUD-60HX6SPHH Indoor model： AUD-18HX4SNL AUD-24HX4SLH AUD-36HX4SHH AUD-48HX4SHH AUD-60HX4SHH Outdoor model： AUW-18H4SU1 AUW-24H4SZ1 AUW-36H6SA1 AUW-48H6SE1 AUW-60H6SP1 Performance Cooling Capacity (W) 5000 7400 10200 14000 16000 Heating Capacity (W) 5500 7900 11250 15000 17500 Cooling...
  • Page 31 AUD-18HX4SUNL AUD-24HX4SZLH AUD-36HX6SAHH AUD-48HX6SEHH AUD-60HX6SPHH Indoor model： AUD-18HX4SNL AUD-24HX4SLH AUD-36HX4SHH AUD-48HX4SHH AUD-60HX4SHH Outdoor model： AUW-18H4SU1 AUW-24H4SZ1 AUW-36H6SA1 AUW-48H6SE1 AUW-60H6SP1 Weight Indoor (Kg) Unit Packing Indoor Dimensions 1070X236X580 1170X340X870 1550×410×940 1550×410×940 1550×410×940 Unit WxHxD (mm) Gross Weight Indoor (Kg) Unit Loading Capacity 76/160/180 36/80/94 23/50/56...
  • Page 32 2.2 Cassette Type On/Off Unitary Indoor Unit AUC-18HR4SUA AUC-24HR4SZ AUC-36HR6SA AUC-48HR6SP AUC-60HR6SPHA AUC-24HR4SG AUC-36HR4SG AUC-48HR4SH Indoor model： AUC-18HR4SAA AUC-60HR4SHA Outdoor model： AUW-18H4SU AUW-24H4SZ AUW-36H6SA AUW-48H6SP AUW-60H6SP Performance Cooling Capacity (W) 5000 7450 10000 14000 16000 Heating Capacity (W) 5500 7500 11000 14800 17500...
  • Page 33 AUC-18HR4SUA AUC-24HR4SZ AUC-36HR6SA AUC-48HR6SP AUC-60HR6SPHA AUC-24HR4SG AUC-36HR4SG AUC-48HR4SH Indoor model： AUC-18HR4SAA AUC-60HR4SHA Outdoor model： AUW-18H4SU AUW-24H4SZ AUW-36H6SA AUW-48H6SP AUW-60H6SP Copper tube Copper tube Copper tube Copper tube and Copper tube and Condenser and Aluminum and Aluminum and Aluminum Aluminum Fin Aluminum Fin Other Panel...
  • Page 34 On/Off Unitary Indoor Unit(Low Temp.) AUC-18HR4SU AUC-24HR4S AUC-36HR6S AUC-48HR6S AUC-60HR6SP ZGA1 AGA1 EHA1 AUC-18HR4SA AUC-24HR4S AUC-36HR4S AUC-48HR4S AUC-60HR4SH Indoor model： AUW-36H6SA AUW-48H6SE Outdoor model： AUW-18H4SU1 AUW-24H4SZ AUW-60H6SP1 Panel: PE-BA-B29 PE-CA-B29 PE-CA-B29 PE-CA-B29 PE-CA-B29 Performance Cooling Capacity (W) 5000 7450 10000 14000 16000 Heating Capacity (W)
  • Page 35 AUC-18HR4SU AUC-24HR4S AUC-36HR6S AUC-48HR6S AUC-60HR6SP ZGA1 AGA1 EHA1 AUC-18HR4SA AUC-24HR4S AUC-36HR4S AUC-48HR4S AUC-60HR4SH Indoor model： AUW-36H6SA AUW-48H6SE Outdoor model： AUW-18H4SU1 AUW-24H4SZ AUW-60H6SP1 Panel: PE-BA-B29 PE-CA-B29 PE-CA-B29 PE-CA-B29 PE-CA-B29 Aluminum Fin and Aluminum and Aluminum and Aluminum Aluminum Fin Other Dimension Panel 650x30x650 950x37x950...
  • Page 36 2.3 Ceiling&Floor type On/Off Unitary Indoor Unit AUV-18HR4SU AUV-24HR4S AUV-36HR6S AUV-48HR6SP AUV-60HR6S AUV-24HR4S AUV-36HR4S AUV-60HR4S Indoor model： AUV-18HR4SA AUV-48HR4SC Outdoor model： AUW-18H4SU AUW-24H4SZ AUW-36H6SA AUW-48H6SP AUW-60H6SP Performance Cooling Capacity (W) 5000 7700 10200 14000 16000 Heating Capacity (W) 5500 7900 12000 16000 18000...
  • Page 37 AUV-18HR4SU AUV-24HR4S AUV-36HR6S AUV-48HR6SP AUV-60HR6S AUV-24HR4S AUV-36HR4S AUV-60HR4S Indoor model： AUV-18HR4SA AUV-48HR4SC Outdoor model： AUW-18H4SU AUW-24H4SZ AUW-36H6SA AUW-48H6SP AUW-60H6SP Other Dimensions WxHxD Indoor Unit 990x680x230 990x680x230 1285x680x230 1580x680x230 1580x680x230 (mm) Net Weight (Kg) Indoor Unit Packing Dimensions Indoor Unit 1100x820x350 1100x820x350 1400x820x350 1690x820x350...
  • Page 38 On/Off Unitary Indoor Unit(Low Temp.) AUV-18HR4SU AUV-24HR4SZ AUV-36HR6SA AUV-48HR6SE AUV-60HR6SP Indoor model： AUV-18HR4SA AUV-24HR4SA AUV-36HR4SB AUV-48HR4SC AUV-60HR4SC Outdoor model： AUW-18H4SU1 AUW-24H4SZ1 AUW-36H6SA1 AUW-48H6SE1 AUW-60H6SP1 Performance Cooling Capacity (W) 5000 7700 10200 14000 16000 Heating Capacity (W) 5500 7900 12000 16000 18000 Rated Cooling...
  • Page 39 AUV-18HR4SU AUV-24HR4SZ AUV-36HR6SA AUV-48HR6SE AUV-60HR6SP Indoor model： AUV-18HR4SA AUV-24HR4SA AUV-36HR4SB AUV-48HR4SC AUV-60HR4SC Outdoor model： AUW-18H4SU1 AUW-24H4SZ1 AUW-36H6SA1 AUW-48H6SE1 AUW-60H6SP1 Weight Indoor Unit (Kg) Packing Dimensions Indoor Unit 1100x820x350 1100x820x350 1400x820x350 1690x820x350 1690x820x350 WxHxD (mm) Gross Weight Indoor Unit (Kg) Loading Capacity 55/116/122 45/99/105 33/67/74...
  • Page 40 3.1 INDOOR UNIT Duct Type ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 41 24K/36K/48K/60K ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 42 Cassette Type ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 43 ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 44 24K,36K,48K,60K ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 45 ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 46 Ceiling&Floor Type ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 47 3-2.OUTDOOR ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 48 ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 49 ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 50 (Low Ambient Temperature Type ) ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 51 48K(Ordinary Type) ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 52 & & 4.Piping Diagrams& Data 4.1 Piping Diagrams 18K    24K  Stop Valve Ambient temperature Ambient Discharge sensor temperature temperature sensor sensor 4-Way Valve Coil temperature sensor Coil temperature sensor Outdoor heat Indoor heat exchanger exchanger Compressor Bypass Capillary Bypass Capillary strainer Check Valve strainer...
  • Page 53 & & 36K    48K(Low Ambient Temperature Type)  Stop Valve Ambient temperature Ambient Discharge sensor temperature temperature sensor sensor 4-Way Valve Coil Discharge temperature Pressure sensor Coil Switch temperature Suction sensor Pressure Switch Outdoor heat Indoor heat exchanger exchanger Compressor Bypass Capillary Bypass Capillary strainer Check Valve strainer...
  • Page 54 & & 60k  (Low Ambient Temperature Type)  Stop Valve Ambient temperature Ambient Discharge sensor temperature temperature sensor sensor 4-Way Valve Coil Discharge temperature Pressure sensor Coil Switch temperature Suction sensor Pressure Switch Outdoor heat Indoor heat exchanger exchanger Compressor Bypass Capillary Bypass Capillary strainer Check Valve strainer...

  • Page 55: 4-2Max. Refrigerant Pipe Length And Height Difference

    & & 4.2MAX. Refrigerant pipe length and height difference:   *Do your best to reduce the pipe length. Long pipe may cause capacity of the indoor unit incline.  Total refrigerant pipe length  Outdoor unit precharged  0m~5m  Exceed 5m  AUW-18H4SU   Xg = 15g / m  ×  (Total pipe length(m) ‐5)  1200g  0g  AUW-24H4SZ 1650g  0g    AUW-36H6SA   2300g  0g  Xg =35g / m  ×  (Total pipe length(m) ‐5)  AUW-48H6SP   3100g  0g  AUW-60H6SP   3300g  0g ...

  • Page 56: Electric Diagrams

    & & 4.3ELECTRIC Diagrams 18K    24K    36K/48K/60K            UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 57 & & Recommend Wire Size Power Source Transmitting Cable Model POWER SUPPLY Cable Size Size Capacity（Btu/h） （mm2） （mm2） 220-240V ~,50Hz 3×1.5 5×1.5 220-240V ~,50Hz 3×2.5 4×0.75 380-415V ~,3N~,50Hz 5×1.5 4×0.75 380-415V ~,3N~,50Hz 48K/60K 5×2.5 4×0.75       ● Use an ELB (Electric Leakage Breaker). If not used, it will cause an electric shock or a fire.
  • Page 58 & & cord (code designation H05RN-F) . 3) Use a shielded cable for the transmitting circuit and connect it to ground . 4) In the case that power cables are connected in series, add each unit maximum current and select wires below. * in the case that current exceeds 63A, do not connect cables in series.

  • Page 59: 4-4Air Flow And Esp Chart Diagrams(For Duct Type)

    & & 4-4Air flow and ESP Chart Diagrams(for duct type) 18K  18K Curve for 10Pa ESP 1000 Air flow（m3/h）   18K Curve for 30Pa ESP 1000 1100 Air flow（m3/h）     UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 60 & & 24K  24K Curve for 50Pa ESP 700  800  900  1000  1100  1200  1300  1400  Air flow（m3/h）   24K Curve for 80Pa ESP 600  700  800  900  1000  1100  1200  1300  1400  1500  Air flow（m3/h）       UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 61 & &   36K Curve for 50Pa ESP 900  1100  1300  1500  1700  1900  Air flow（m3/h）   36K Curve for 80Pa ESP 800  1000  1200  1400  1600  1800  2000  Air flow（m3/h）     UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 62 & & 48K  48K Curve for 80Pa ESP 1500 1700 1900 2100 2300 2500 Air Flow（m³/h）   48K Curve for120Pa ESP 1500 1700 1900 2100 2300 2500 Air Flow（m³/h）     UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 63 & & 60K  60K Curve for 80Pa ESP 1500 1700 1900 2100 2300 2500 Air Flow（m³/h）     60K Curve for120Pa ESP 1500 1700 1900 2100 2300 2500 Air Flow（m³/h）     UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...

  • Page 64: 5．Electrical Data

    5-1.Electrical wiring diagrams INDOOR UNIT: DUCT TYPE   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 65   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 66   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 67 48K/60K   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 68 CASSETTE TYPE 24K,36K,48K,60K   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 69 CEILING&FLOOR TYPE 24K/36K/48K/60K   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 70 OUTDOOR UNIT Low-Ambient Temperature Type   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 71   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 72   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 73   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 74   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 75 Ordinary Temperature Type   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 76 Ordinary Temperature Type   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 77   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 78   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 79   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 80 5-2. CONTROL BOARD INDOOR UNIT: 24k,36k,48k,60k   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 81 OUTDOOR UNIT 18K----no control board   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 82 36K,48K,60K   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...

  • Page 83: Dip Switch Setting

    5-3. Dip Switch Setting 18K(INDOOR ) 24K,36K,48K,60K(OUTDOOR)   ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 84 5-5. System Parameter Adjustment Internal control parameter adjustment can be performed. OPERATION： ①Hold down both“MODE”button and“ADD.FUNC.”button for 3 seconds, symbol and parameter number blinking at the same time. ②Press“ ”“ ”button to adjust parameter number until display “17”. And press “ENTER”button to entering system parameter adaption state, symbol stop blinking.
  • Page 85 Parameter code will not display if the indoor unit is not equipped with this function. Please refer to indoor unit manual to check whether this function is effective. EXIT： Press "ON/OFF" button to exit, or no operation within 30 seconds automatically exit.  ...

  • Page 86: Static Pressure Setting(Only For Duct Type)

    5-4 Static Pressure Setting(only for duct type) CHANGE OF STATIC PRESSURE The static pressure outside the indoor unit can be chosen . You can change the static pressure by changing the fan motor terminal which refer to following Fig.below:   ON/OFF UNITARY AIR CONDITIONER TECHNICAL&...

  • Page 87: Sensor Parameter

    5-6. Sensor parameter THE PARAMETER OF OUTDOOR COMPRESSOR DISCHARGE TEMPERATURE SENSOR: （R =187.25K±6.3%；R =3.77K±2.5K；B0/100=3979K±1%） THE PARAMETER OF THE OTHER SENSOR IN INDOOR AND OUTDOOR UNIT： T [ ℃ ] DR(MIN)% DR(MAX)% Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] 7.47 908.2603 985.5274...
  • Page 88 T [ ℃ ] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] DR(MIN)% DR(MAX)% 5.50 107.8202 114.4973 121.1586 -5.83 5.46 102.8560 109.1728 115.4734 -5.79 5.41 98.1470 104.1246 110.0855 -5.74 5.37 93.6787 99.3367 104.9778 -5.70 5.33 89.4378 94.7946 100.1342 -5.65...
  • Page 89 T [ ℃ ] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] DR(MIN)% DR(MAX)% 3.87 17.6458 18.3926 19.1338 -4.06 3.84 16.9986 17.7113 18.4185 -4.02 3.83 16.3784 17.0537 17.7335 -3.96 3.77 15.7839 16.4332 17.0774 -3.95 3.74 15.2139 15.8338 16.4488 -3.92...
  • Page 90 T [ ℃ ] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] DR(MIN)% DR(MAX)% 2.55 4.1453 4.2568 4.3683 -2.62 2.52 4.0218 4.1287 4.2355 -2.59 2.50 3.9024 4.0049 4.1074 -2.56 2.47 3.7872 3.8854 3.9837 -2.53 2.44 3.6758 3.7700 3.8643 -2.50...
  • Page 91 （R =15K±2%； B0/100=3450K±2%） T [℃] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] DR(MIN)% DR(MAX)% 6.12 60.78 64.77 68.99 -6.16 5.83 57.75 61.36 65.16 -5.88 5.57 54.89 58.15 61.58 -5.61 5.31 52.19 55.14 58.23 -5.35 5.05 49.63 52.30 55.08...
  • Page 92 T [℃] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] DR(MIN)% DR(MAX)% 2.33 9.199 9.422 9.647 -2.37 2.40 8.826 9.047 9.269 -2.44 2.48 8.470 8.689 8.910 -2.52 2.57 8.129 8.347 8.567 -2.61 2.66 7.804 8.021 8.240 -2.71 2.76 7.493...
  • Page 93 T [℃] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] DR(MIN)% DR(MAX)% 5.82 1.888 2.005 2.129 -5.84 5.87 1.827 1.941 2.062 -5.87 5.91 1.767 1.880 1.998 -6.01 5.99 1.710 1.820 1.936 -6.04 6.02 1.655 1.763 1.876 -6.13 6.11 1.602...
  • Page 94 T [℃] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ] DR(MIN)% DR(MAX)% 8.23 0.5064 0.5519 0.6014 -8.24 8.27 0.4923 0.5369 0.5853 -8.31 8.32 0.4787 0.5224 0.5698 -8.37 8.36 0.4655 0.5083 0.5547 -8.42 8.42 0.4528 0.4946 0.5401 -8.45 8.46 0.4404...

  • Page 95: 6．Control Mode

    6-1 Indoor control mode 1.Major general technical parameters 1 Remote receiver distance: 8 m. 2 Remote receiver angle: Less than 80 degrees. 3 Temperature control accuracy: ±1℃. 4 Time error: Less than 1%. 2. Functions of the controller Control function 2.1 Emergency switch Press the emergency button can realize the starting or closing Machine, starting up according to the automatic mode of operation（invalid for duct type air-conditioner）...
  • Page 96 will start in the timer off condition. When the set time is up, the air conditioner will turn off after receiving a signal from the remote controller. If the air conditioner has not received a signal from the remote controller when the set time is up, it will turn off automatically. 3.
  • Page 97 The heating mode, remote shutdown, such as indoor heat exchanger temperature is higher, the wind blowing out opportunities continue to run the waste heat. Cool and dehumidification mode , after the compressor close, indoor machine will continue to set the speed of operation for a period of time. 2.9 automatically model This model does not automatically model function, emergency button cannot set the automatic mode of operation, can use the emergency switch shutdown, remote setting the...

  • Page 98: Outdoor Control Mode

    6-2 Outdoor mode control Control function 1.Cooling Anti-freeze Protection To prevent indoor air conditioner evaporator temperature is too low, the indoor coil sensor for real time detection of evaporator. If the indoor coil temperature is too low, the compressor will protect. 2.
  • Page 99 To prevent compressor from restart frequently in the condition that system pressure has not been completely balanced, it can’t be restarted within 3 minutes. 7. Pressure Protection: When the pressure increases to a preset value, the pressure switch will automatically protect. Compressor will stop and report the fault code protection. ON/OFF UNITARY AIR CONDITIONER TECHNICAL&...

  • Page 100: Error Codes

    Trouble guide When the air conditioner failure occurs, the fault code will displays on control board , wire remote controller or display panel. HOW TO CHECK FAULT CODES INDOOR UNIT 1.WALL MOUNTED TYPE For Free-match series Run the air-conditioner by wireless remote controller , continue pressing “SLEEP ”button for 4 times, fault codes will flashing rapidly on the...
  • Page 101 MOEDL:YXE-C01U FIG.2 ERROR CODE DISPLAY ON WIRE REMOT CONTROLLER （2）CHECK ERROR CODES BY DISPLAY PANEL(CASSETTE type and CEILING &FLOOR type) Display by lamp indicator Lamp RUN(LED2 ,red) and Lamp DEFROST（LED5 ,green）flashing，Lamp RUN display fault code ten digit number, lamp DEFROST display fault code single digit number (as shown fig. below). For example，fault code 36：...
  • Page 102 ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 103 LED FALSH CONTROL：flash 300mS(T1)，off 300mS(T2)，after 2000mS(T3)fault code repeat displays. (as shown below) T1 T2 Fig.2 LED FALSH CONTROL 3.Duct type indoor units of VRF---FAULT CODE DISPLAY BY INDOOR BOARD LED2 and LED5 are failure indicate lamps， LED2(RED) indicate fault code ten digit number, LED5(GREEN) indicate single digit number code ON/OFF UNITARY AIR CONDITIONER TECHNICAL&...
  • Page 104 2.OUTDOOR UNIT FAULT CODE DISPLAY （1） ON/OFF UNITARY TYPE（with outdoor control box） Fault code display by indicate lamps of outdoor control board flash. The times that the lamp flashes equal to fault code. LED2-fault code lamp LED FALSH CONTROL： flash 300mS(T1)， off 300mS(T2)， after 900mS(T3)fault code repeat displays. (as shown below) T1 T2 （2）INVERTER UNITARY AIR CONDITONER , MULTI-SPLIT TYPE AIR CONDITONER&VRF：...
  • Page 105 Outdoor Control Board Digital Tube FOR INVERTER UNITARY AIR CONDITONER&VRF * VRF： Indoor unit can indicate both indoor failure and outdoor failure ,but outdoor only indicate outdoor’s. FOR MULTI-SPLIT TYPE Error code display on digital tube board directly. ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 106 3.Fault code display ( Driver Board ) The lamp of driver board flash shows failure occur. Or, fault code can be check on digital tube board . ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 107 The following is the fault code table of outdoor. sheet 1 Outdoor Error Code Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code 1.Reconnect the outdoor ambient 1.The outdoor ambient temperature sensor temperature sensor; connect loose; Outdoor ambient temperature 2.Replace the outdoor ambient 2.The outdoor ambient temperature sensor is...
  • Page 108 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code Applied to 1.Replace outdoor ambient ON/OFF 1.Outdoor ambient temperature sensor fault； temperature sensor； air-condition Motor blockage protection 2. Outdoor coil temperature sensor fault； 2.Replace outdoor coil temperature ers with 2 3.Outdoor control board fault.
  • Page 109 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code 3.Replace the outdoor control board supply models Application 1. Normally protection 1.Three-phase power is abnormal; 2. Check the wiring connection refer to three-phase voltage absent phase 2.The outdoor wiring connect wrong; the wiring diagram;...
  • Page 110 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code 1.Reconnect the wiring of the suction 1.The wiring of the suction temperature temperature sensor; Suction temperature sensor sensor connect loose; 2.Replace the suction temperature fault 2. The suction temperature sensor is failure; sensor;...
  • Page 111 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code 2.The sensor of the expansion valve A（thick 2. Replace the sensor for the &inverter tube）is failure; expansion valve A(thick tube); unitary types 3.The sampling circuit is abnormally 3.
  • Page 112 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code 2.The high-pressure pressure sensor is 2.Replace the high-pressure pressure failure sensor; 3.The sampling circuit of the high-pressure 3.Replace the outdoor control board. pressure sensor is failure 1.The wiring of the low-pressure pressure 1.Reconnect the wiring of the sensor connect loose;...
  • Page 113 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code as capillary, expansion valve) 4. Normally protection. 1.Reconnect the wiring of the up DC 1.The wiring of the up DC fan motor connect fan motor; loose; 2.Replace the up DC fan motor; 2.
  • Page 114 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code 1. The wiring of the sensor connect loose; 1. Reconnect the wiring of the sensor; Expansion valve E 2.The sensor of the expansion valve Eis 2. Replace the sensor for the FOR Branch temperature sensor fault failure;...
  • Page 115 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code the refrigerant of the unit is not Discharge the refrigerant and charge The refrigerant of the unit is not enough enough fault the refrigerant refer to the rating label 1.The wiring of the 4-way valve coil connect 1.
  • Page 116 The following is the fault code table of indoor. Sheet 2 Indoor Error Code List Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code 1. The buttons are failure; 1. Replace the display board; 2. The cable of the display board is 2.
  • Page 117 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code 1. The connection cable between the indoor unit and the outdoor unit connect 1. Reconnect the connection cable wrong; refer to the indoor and outdoor 2.The communication cable between wiring diagram;...
  • Page 118 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code 1. Check whether there are something to block the drain hose or the height of the drain hose is too 1. The water level of the drain pan high;...
  • Page 119 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code 4.Indoor control board is failure. 1. The cable of the water tank water temperature sensor 2 connect loose; 1. Reconnect the cable of the water 2. The cable of the water tank water temperature sensor 2;...
  • Page 120 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code indoor unit and the outdoor unit is wiring diagram; failure or 4. Replace the indoor control board; the cable between the indoor control 5. Replace the outdoor control board. board to terminal is failure or the cable between...
  • Page 121 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code 1. The cable of the room temperature 1.Reconnect the cable of the room sensor connect loose; temperature sensor; Indoor ambient 2. The room temperature sensor is 2. Replace the room temperature Temperature Sensor Fault failure;...
  • Page 122 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code 1. The cable of the temperature sensor 1. Reconnect the able of the temperature sensor of the outlet of The outlet of water the outlet of water side is failure; water side;...
  • Page 123 Fault Fault Description Possible Reason of Abnormality How to Deal With REMARKS code 1.The wiring between the display board to 1. Reconnect the between the display the indoor control board connect loose; board to the indoor control board; 2.The sequence of the wiring between 2.
  • Page 124 The expansion valve or the capillary is failure Replace the expansion valve or the capillary Note 4:Over load in heating mode Overload in heating mode The root cause Corrective measure Discharge the refrigerant, and recharge the refrigerant refer to the The refrigerant is excessive rating label The indoor ambient temperature is too high...
  • Page 125 The following is the fault code table of driver board. Analysis of the Driving Board Fault （Except Free-match 20K&16K DUAL TYPES）, Driver board fault codes trouble shooting details see sheet 5. I． Driver fault code display by indicate lamps of driver board flashing. The times that the lamp flashes equal to fault code.
  • Page 126 Fault Fault Description Possible Reason of Abnormality How to Deal With code Communication between 1,Communication wire connect not well; 1, Check compressor wire connect. driver board and control 2,Driver board fault; 2,Change the driver board; board fault 3,Control board fault; 3,Change the control board ;...
  • Page 127 1 time flash 1 time flash LED ON LED ON LED OFF LED OFF 1.0sec 1.0sec 0.5sec 0.5sec For example，fault code 4： Indicator light flash 4 times1-second short LED on/off Intervals for a period of time again, reports No. 4 fault. LED ON LED OFF 3.0sec...
  • Page 128 Fault Fault Description Possible Reason of Abnormality How to Deal With code 2、 Driver board failure； board; 3、PFC failure； 3、Change the PFC. DC voltage detected abnormal . 1、 Input voltage is too high or 1,Check the power supply. too low; PFC LOW voltage detected failure.
  • Page 129 8-1. Check refrigerant system TEST SYSTEM FLOW Conditions: ① Compressor is running. ② The air condition should be installed in good ventilation. Tool: Pressure Gauge Technique: ① see ② feel ③ test ----- Tube defrost. FEEL ----- The difference between tube’s temperature. TEST ----- Test pressure.
  • Page 130 Test system flow Cooling mode Test system The pressure on the pressure.Does the low high side. pressure normal at service part ? Recharge refrigerant after air purging with If the pressure is The pressure on the the vacuum close to static low side.
  • Page 131 8-2.Check parts unit 1. INDOOR FAN MOTOR MOTOR EXAMINE AND REPAIR Circuit diagram： DUCT TYPE YSK95-45-4-B M1:138Ω A1：42.5Ω A2:22Ω A3:17.6Ω A4:14.6Ω A5:81.4Ω BROWN-BLUE:70.1 BROWN-ORANGE:75.5 BROWN-RED:10.3 RAD –WHITE:11.4 WHITE-BLACK:16.1 Y7S423B814 UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 132 BLUE- BROWN:52.5 BROWN-RED:3.78 RAD –YELLOW:3.68 YELLOW–WHITE:0.89 WHITE-BLACK:4.67 ORANGE- BROWN:29.5 48K,60K Y7S423C237 BLUE- BROWN:17.89 ORANGE1- BROWN:27.2 BROWN-RED:3.35 RAD –WHITE:4.77 WHITE-BLACK:2.72 UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 133 CASSETTE TYPE M:240Ω A1:60Ω A2:33Ω A3:143Ω M:209.4Ω A1:36.2Ω A2:51.5Ω A3:109.2Ω YDK75-8-2 M:75Ω A:97.5Ω UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 134 48K&60K YDK80-8-2 M:75Ω A:97.5Ω UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 135 Ceiling&Floor type MOTOR EXAMINE AND REPAIR Circuit diagram： YSK110-22-4-A M: 187Ω A1：37.5Ω A2：27.8Ω A3：146Ω YSK110-100-4-A M:55 Ω A1:23.2 Ω A2:10.9Ω A3:18.3Ω Y7S423B212 UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 136 WHITE-BLACK:41.49 BLACK-BLUE:13.25 BLUE-YELLOW:12.39 RED-BLACK:35.21 48K&60K Y7S423C032 WHITE-BLACK:42.69 BLACK-BLUE:9.19 BLUE-YELLOW:9.09 RED-BLACK:36.41 Test in resistance. TOOL: Multimeter. Test the resistance of the main winding. The indoor fan motor is fault if the resistance of main winding 0(short circuit)or∞（open circuit）. Test in voltage TOOL: Multimeter.
  • Page 137 Notes: 1) Please don’t hold motor by lead wires. 2) Please don’t plug IN/OUT the motor connecter while power ON. Please don’t drop hurl or dump motor against hard material. Malfunction may not be observed at early stage after such shock. But it may be found later, this type of mishandling void our warranty.
  • Page 138 2. OUTDOOR FAN MOTOR MOTOR EXAMINE AND REPAIR Circuit diagram YDK29-6I-25 Winding resistance ( at 20℃) M: 231Ω A: 168Ω YDK70-6H-3: WINDING BROWN " " M The main winding BLACK " " A The auxiliary winding Capacitor ℃ Hot protector 130 WHITE YELLOW BLUE...
  • Page 139 YDK29-6I-39 YDK29-6I-41 Winding resistance ( at 20℃) M:187Ω±15% A:BLUE-RED-WHITE-YELLOW 50/21/106Ω±15% YDK65-6-9024、YDK65-6-9061 Winding resistance ( at 20℃) M:83.0Ω A1:23.4Ω A2:14.0Ω A3: 63.5Ω UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 140 Test in resistance. TOOL: Multimeter. Test the resistance of the main winding. The outdoor fan motor is fault if the resistance of main winding 0(short circuit)or∞（open circuit）. Notes: 1) Please don’t hold motor by lead wires. 2） Please don’t plug IN/OUT the motor connecter while power ON. 3）...
  • Page 141 3. COMPRESSOR COMPRESSOR EXAMINE AND REPAIR PA190M2CS-4KTL PA290G2CS-4MUL1 C-SBN303H8D UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 142 ATE550SC3Q9RK C-SBN453H8D Test in resistance. TOOL: Multimeter. Test the resistance of the winding. The compressor is fault if the resistance of winding 0(short circuit)or∞（open circuit） Familiar error: UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0...
  • Page 143 1）Compressor motor lock. 2）Discharge pressure value approaches static pressure value . 3）Compressor motor winding abnormality. Notes： 1）Don’t put a compressor on its side or turn over. 2) Please assembly the compressor in your air conditioner rapidly after removing the plugs. Don’t place the comp.
  • Page 144 Fuse Fig.2 7.CAPACITOR 1) Remove the lead wires from the capacitor terminals, and then place a probe on the capacitor terminals as shown in Fig.3. 2) Observe the deflection of the pointer, setting the resistance measuring range of the multimeter to the maximum value. * The capacitor is “good”...

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