Haier MRV 5-H Service Manual
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Haier MRV 5-H Service Manual

Haier MRV 5-H Service Manual

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MRV 5-H Service Manual
SYJS-2021.A
Edition: 2021-01

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Summary of Contents for Haier MRV 5-H

  • Page 1 MRV 5-H Service Manual SYJS-2021.A Edition: 2021-01...

  • Page 2: Table Of Contents

    CONTENTS 1. Safety considerations ............................1 1.1 Caution in repair ............................1 1.2 Cautions regarding rroducts after repair ......................4 1.3 Inspection after repair ............................ 6 2. General information ............................7 2.1 Feature ................................7 2.2 Products lineup .............................. 9 3.
  • Page 3 21.5 Oil return control ............................183 21.6 Defrosting control ............................. 183 21.7 Pump down operation ..........................184 21.8 High pressure protection .......................... 184 21.9 Low pressure protection ........................... 185 21.10 The temperature of discharge too high control ..................185 21.15 Target pressure control ........................... 187 21.16 Overheating protection control .......................

  • Page 4: Safety Considerations

    1. Safety considerations Cautions and warnings Read these SAFETY CONSIDERATIONS carefully before installing air conditioning equipment, and be sure to install it correctly. After completing the installation, make sure that the unit operates properly during the start-up operation. Instruct the customer how to operate and maintain the unit. Inform customers that they should store this Installation Manual with the Operation Manual for future reference.
  • Page 5 Warning If the refrigerant gas leaks during the repair work, ventilate the area. The refrigerant gas can generate toxic gases when it contacts flames. The step-up capacitor supplies high-voltage electricity to the electrical components of the outdoor unit. Be sure to discharge the capacitor completely before conducting repair work.
  • Page 6 Caution Do not repair the electrical components with wet hands. Working on the equipment with wet hands can cause an electrical shock. Do not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical shock. Be sure to provide the grounding when repairing the equipment in a humid or wet place, to avoid electrical shocks.

  • Page 7: Cautions Regarding Rroducts After Repair

    1.2 Cautions regarding rroducts after repair Warning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work. Never attempt to modify the equipment. The use of inappropriate parts or tools can cause an electrical shock, excessive heat generation or fire.
  • Page 8 Warning Do not mix air or gas other than the specified refrigerant (R-410A) in the refrigerant system. If air enters the refrigerating system, an excessively high pressure results, causing equipment damage and injury. If the refrigerant gas leaks, be sure to locate the leak and repair it before charging the refrigerant.

  • Page 9: Inspection After Repair

    1.3 Inspection after repair Warning Check to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet all the way. If the plug has dust or loose connection, it can cause an electrical shock or fire.

  • Page 10: General Information

    • At the same time, adding sub-cooling heat exchanger in the system can also improve the long piping capacity. Plate heat exchanger for 2-stage sub-cooling Oil return in heating condition, the EEV don’t change direction Heating return oil, indoor units can normal heat, room temperature keep stable, improve indoor temperature comfort. MRV 5-H Ordinary type Oil return Time...
  • Page 11 Door type electric control box design Rotating electric control box, can be opened to the side, compressor, tank and valve body maintenance is convenient Enhanced Vapor Injection technology, low temperature heating and high temperature cooling. The unit adopts EVI compressor, which can increase the refrigerant circulation by 15%, and improve the heating effect by 30% compared with the normal type.

  • Page 12: Products Lineup

    2.2 Products lineup Indoor units 4-WAY CASSETTE TYPE/PB-700lB ROUND-WAY SMART AIR FLOW CASSETTE/ PB- AB052MCERA 950KB AB072MCERA AB072MRERA AB092MCERA AB092MRERA AB122MCERA AB122MRERA AB162MCERA AB162MRERA AB182MCERA(C) AB182MRERA 4-WAY CASSETTE TYPE/PB-950JB AB242MRERA AB282MRERA AB182MCERA AB242MCERA AB282MCERA AB302MRERA AB382MRERA AB302MCERA AB482MRERA AB382MCERA AB482MCERA AB602MRERA MINI 4-WAY CASSETTE TYPE/PB-620KB 1- WAY CASSETTE TYPE/P1B-1050IB...
  • Page 13 MED ESP DUCT TYPE (80/120Pa) MED ESP DUCT TYPE (50/96Pa) AD182MZERA AD182MMERA AD242MZERA AD242MMERA AD282MZERA AD282MMERA AD302MNERA AD302MMERA AD382MNERA AD382MMERA AD482MNERA AD482MMERA MED ESP DUCT TYPE (50/100Pa) CONSTANT AIR VOLUME DUCT TYPE AD052MJERA AD072MQERA AD072MJERA AD092MQERA AD092MJERA AD122MQERA AD122MJERA AD152MQERA AD162MJERA AD182MQERA AD182MJERA...
  • Page 14 FRESH AIR BUILIT-IN FLOOR STANDING AE072MLERA AD482MPERA AE092MLERA AE122MLERA AE162MLERA AD722MPERA AE182MLERA AD962MPERA AE242MLERA CONSOLE EK HIGH WALL AS072MGERA AF072MAERA AS092MGERA AF092MAERA AS122MGERA AF122MAERA AS162MGERA AF182MAERA AS182MGERA AS242MGERA N HIGH WALL AS052MNERA AS052MFERA AS072MNERA AS072MFERA AS092MNERA AS092MFERA AS122MNERA AS122MFERA AS052MNERAB AS052MFERAB AS072MNERAB AS072MFERAB...
  • Page 15 Outdoor units AV08/10/12/14/16NMVETA AV18/20/22/24/26NMVETA AV28/30/32/MVETA AV34NMVETA AV36/38/40/42/44/46/48/50/52NMVETA AV54/56/58/60/62/64/66NMVETA AV68/70/72/74/76/78NMVETA AV80/82/84/86/88/90/92NMVETA AV94/96/98/100/102/104NMVETA...
  • Page 16 Power supply Appearance Model Capacity(kW) Refrigerant (Ph, V, Hz) AV08NMVETA 25.2 AV10NMVETA 28.0 AV12NMVETA 33.5 AV14NMVETA 40.0 AV16NMVETA 45.0 AV18NMVETA 50.4 AV20NMVETA 56.0 AV22NMVETA 61.5 AV24NMVETA 68.0 AV26NMVETA 73.5 AV28NMVETA 80.0 3Ph,380-415V, R410A AV30NMVETA 85.0 50/60Hz AV32NMVETA 90.0 AV34NMVETA 95.4 AV36NMVETA 100.8...
  • Page 17 Power supply Appearance Model Capacity(kW) Refrigerant (Ph, V, Hz) AV38NMVETA 106.4 AV40NMVETA 112.0 AV42NMVETA 117.5 AV44NMVETA 123.0 AV46NMVETA 129.5 AV48NMVETA 136.0 AV50NMVETA 141.5 AV52NMVETA 147.0 AV54NMVETA 151.2 AV56NMVETA 156.8 3Ph,380-415V, AV58NMVETA 162.4 R410A 50/60Hz AV60NMVETA 168.0 AV62NMVETA 173.5 AV64NMVETA 179.0 AV66NMVETA 184.5 AV68NMVETA...
  • Page 18 Power supply Appearance Model Capacity(kW) Refrigerant (Ph, V, Hz) AV80NMVETA 224.0 AV82NMVETA 229.5 AV84NMVETA 235.0 AV86NMVETA 240.5 AV88NMVETA 246.0 AV90NMVETA 252.5 AV92NMVETA 259.0 AV94NMVETA 265.5 3Ph,380-415V, R410A AV96NMVETA 272.0 50/60Hz AV98NMVETA 277.5 AV100NMVETA 283.0 AV102NMVETA 288.5 AV104NMVETA 294.0...

  • Page 19: Specification

    3. Specification Model AV08NMVETA AV10NMVETA Combination Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 25.2 28.0 Rated capacity kBtu/h 85.99 95.54 Rated power input 6.24 7.37 Max. power input 14.30 15.10 Cooling Rated current 10.53 12.44 Max. current 23.81 25.14 4.04 3.80 AEER 7.25...
  • Page 20 Model AV08NMVETA AV10NMVETA Brand Shun wei Shun wei Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ700 Φ700 Height Mumber of rows Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum Fin coating Type Optional Clear Iacquer Clear Iacquer...
  • Page 21 Model AV08NMVETA AV10NMVETA Liquid pipe 9.52 9.52 Gas pipe 19.05 22.22 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 22 Model AV12NMVETA AV14NMVETA Combination Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 33.5 40.0 Rated capacity kBtu/h 114.31 136.49 Rated power input 9.31 11.94 Max. power input 16.32 17.58 Cooling Rated current 15.71 20.16 Max. current 27.17 29.27 3.60 3.35 AEER 6.69 6.60 Rated capacity...
  • Page 23 Model AV12NMVETA AV14NMVETA Brand Shun wei Shun wei Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ700 Φ700 Height Mumber of rows Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum Fin coating Type Optional Clear Iacquer Clear Iacquer...
  • Page 24 Model AV12NMVETA AV14NMVETA Liquid pipe 12.7 12.7 Gas pipe 25.4 25.4 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 25 Model AV16NMVETA AV18NMVETA Combination Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 45.0 50.4 Rated capacity kBtu/h 153.55 171.97 Rated power input 13.24 15.70 Max. power input 20.69 25.90 Cooling Rated current 22.34 26.51 Max. current 34.50 40.30 3.40 3.21 AEER 6.36 6.78 Rated capacity...
  • Page 26 Model AV16NMVETA AV18NMVETA Brand Shun wei Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ700 Φ642 Height Mumber of rows Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum Fin coating Type Optional Clear Iacquer Clear Iacquer...
  • Page 27 Model AV16NMVETA AV18NMVETA Liquid pipe 12.7 15.88 Gas pipe 28.58 28.58 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 28 Model AV20NMVETA AV22NMVETA Combination Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 56.0 61.5 Rated capacity kBtu/h 191.08 209.85 Rated power input 16.62 18.30 Max. power input 28.91 31.82 Cooling Rated current 28.05 30.90 Max. current 46.30 51.91 3.37 3.36 AEER 6.75 6.54 Rated capacity...
  • Page 29 Model AV20NMVETA AV22NMVETA Brand Tian Da Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642 Φ642 Height Mumber of rows Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum Fin coating Type Optional Clear Iacquer Clear Iacquer...
  • Page 30 Model AV20NMVETA AV22NMVETA Liquid pipe 15.88 15.88 Gas pipe 28.58 28.58 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 31 Model AV24NMVETA AV26NMVETA Combination Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 68.0 73.5 Rated capacity kBtu/h 232.03 250.79 Rated power input 21.94 24.75 Max. power input 32.81 35.35 Cooling Rated current 31.42 35.87 Max. current 54.12 58.86 3.10 2.97 AEER 5.97 5.68 Rated capacity...
  • Page 32 Model AV24NMVETA AV26NMVETA Brand Tian Da Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642 Φ642 Height Mumber of rows Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum Fin coating Type Optional Clear Iacquer Clear Iacquer...
  • Page 33 Model AV24NMVETA AV26NMVETA Liquid pipe 15.88 15.88 Gas pipe 28.58 28.58 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 34 Model AV28NMVETA AV30NMVETA Combination 14+14 14+16 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 80.0 85.0 Rated capacity kBtu/h 272.97 290.03 Rated power input 23.88 25.18 Max. power input 35.16 38.27 Cooling Rated current 40.32 42.50 Max. current 58.54 63.77 3.35 3.38 AEER 5.68...
  • Page 35 Model AV28NMVETA AV30NMVETA Brand Shun wei+Shun wei Shun wei+Shun wei Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ700+Φ700 Φ700+Φ700 Height 204+204 204+204 Mumber of rows Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum Fin coating Type Optional...
  • Page 36 Model AV28NMVETA AV30NMVETA Liquid pipe 15.88 19.05 Gas pipe 28.58 31.8 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 37 Model AV32NMVETA AV34NMVETA Combination 16+16 16+18 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 90.0 95.4 Rated capacity kBtu/h 307.09 325.52 Rated power input 26.47 28.94 Max. power input 41.38 46.59 Cooling Rated current 44.69 48.85 Max. current 69.00 74.80 3.40 3.30 AEER 6.42...
  • Page 38 Model AV32NMVETA AV34NMVETA Brand Shun wei+Shun wei Shun wei+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ700+Φ700 Φ700+Φ642 Height 204+204 204+198 Mumber of rows Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum Fin coating Type Optional...
  • Page 39 Model AV32NMVETA AV34NMVETA Liquid pipe 19.05 19.05 Gas pipe 31.8 31.8 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 40 Model AV36NMVETA AV38NMVETA Combination 18+18 18+20 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 100.8 106.4 Rated capacity kBtu/h 343.94 363.05 Rated power input 31.40 32.32 Max. power input 51.80 54.81 Cooling Rated current 53.01 54.56 Max. current 80.60 86.60 3.21 3.29 AEER 6.84...
  • Page 41 Model AV36NMVETA AV38NMVETA Brand Tian Da+Tian Da Tian Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642 Φ642+Φ642 Height 198+198 198+198 Mumber of rows Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum Fin coating Type Optional...
  • Page 42 Model AV36NMVETA AV38NMVETA Liquid pipe 19.05 19.05 Gas pipe 38.1 38.1 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 43 Model AV40NMVETA AV42NMVETA Combination 20+20 20+22 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 112.0 117.5 Rated capacity kBtu/h 382.16 400.93 Rated power input 33.23 34.92 Max. power input 57.82 60.73 Cooling Rated current 56.11 58.95 Max. current 92.60 98.21 3.37 3.36 AEER 6.80...
  • Page 44 Model AV40NMVETA AV42NMVETA Brand Tian Da+Tian Da Tian Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642 Φ642+Φ642 Height 198+198 198+198 Mumber of rows Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum Fin coating Type Optional...
  • Page 45 Model AV40NMVETA AV42NMVETA Liquid pipe 19.05 19.05 Gas pipe 38.1 38.1 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 46 Model AV44NMVETA AV46NMVETA Combination 22+22 22+24 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 123.0 129.5 Rated capacity kBtu/h 419.69 441.87 Rated power input 36.61 36.91 Max. power input 63.64 64.63 Cooling Rated current 61.80 62.32 Max. current 103.82 106.03 3.36 3.51 AEER 6.59...
  • Page 47 Model AV44NMVETA AV46NMVETA Brand Tian Da+Tian Da Tian Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642 Φ642+Φ642 Height 198+198 198+198 Mumber of rows Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum Fin coating Type Optional...
  • Page 48 Model AV44NMVETA AV46NMVETA Liquid pipe 19.05 19.05 Gas pipe 38.1 38.1 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 49 Model AV48NMVETA AV50NMVETA Combination 24+24 24+26 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 136.0 141.5 Rated capacity kBtu/h 464.05 482.82 Rated power input 37.22 39.86 Max. power input 65.62 68.16 Cooling Rated current 62.84 67.29 Max. current 108.24 112.98 3.65 3.55 AEER 6.97...
  • Page 50 Model AV48NMVETA AV50NMVETA Brand Tian Da+Tian Da Tian Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642 Φ642+Φ642 Height 198+198 198+198 Mumber of rows Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum Fin coating Type Optional...
  • Page 51 Model AV48NMVETA AV50NMVETA Liquid pipe 19.05 19.05 Gas pipe 38.1 38.1 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 52 Model AV52NMVETA AV54NMVETA Combination 26+26 18+18+18 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 147.0 151.2 Rated capacity kBtu/h 501.58 515.92 Rated power input 42.49 47.10 Max. power input 70.70 77.70 Cooling Rated current 71.73 79.52 Max. current 117.72 120.90 3.46 3.21 AEER 6.78...
  • Page 53 Model AV52NMVETA AV54NMVETA Brand Tian Da+Tian Da Tian Da+Tian Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642 Φ642+Φ642+Φ642+Φ642 Height 198+198 198+198+198 Mumber of rows 3+3+3 Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum Fin coating Type...
  • Page 54 Model AV52NMVETA AV54NMVETA Liquid pipe 19.05 19.05 Gas pipe 38.1 38.1 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 55 Model AV56NMVETA AV58NMVETA Combination 18+18+20 18+20+20 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 156.8 162.4 Rated capacity kBtu/h 535.02 554.13 Rated power input 48.02 48.94 Max. power input 80.71 83.72 Cooling Rated current 81.07 82.61 Max. current 126.90 132.90 3.27 3.32 AEER 6.84...
  • Page 56 Model AV56NMVETA AV58NMVETA Brand Tian Da+Tian Da+Tian Da Tian Da+Tian Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642+Φ642+Φ642 Φ642+Φ642+Φ642+Φ642 Height 198+198+198 198+198+198 Mumber of rows 3+3+3 3+3+3 Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum...
  • Page 57 Model AV56NMVETA AV58NMVETA Liquid pipe 19.05 19.05 Gas pipe 38.1 41.3 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 58 Model AV60NMVETA AV62NMVETA Combination 20+20+20 20+20+22 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 168.0 173.5 Rated capacity kBtu/h 573.24 592.01 Rated power input 49.85 51.54 Max. power input 86.73 89.64 Cooling Rated current 84.16 87.01 Max. current 138.90 144.51 3.37 3.37 AEER 6.81...
  • Page 59 Model AV60NMVETA AV62NMVETA Brand Tian Da+Tian Da+Tian Da Tian Da+Tian Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642+Φ642+Φ642 Φ642+Φ642+Φ642+Φ642 Height 198+198+198 198+198+198 Mumber of rows 3+3+3 3+3+3 Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum...
  • Page 60 Model AV60NMVETA AV62NMVETA Liquid pipe 19.05 19.05 Gas pipe 41.3 41.3 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 61 Model AV64NMVETA AV66NMVETA Combination 20+22+22 22+22+22 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 179.0 184.5 Rated capacity kBtu/h 610.77 629.54 Rated power input 53.22 54.91 Max. power input 92.55 95.46 Cooling Rated current 89.85 92.70 Max. current 150.12 155.73 3.36 3.36 AEER 6.67...
  • Page 62 Model AV64NMVETA AV66NMVETA Brand Tian Da+Tian Da+Tian Da Tian Da+Tian Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642+Φ642+Φ642 Φ642+Φ642+Φ642+Φ642 Height 198+198+198 198+198+198 Mumber of rows 3+3+3 3+3+3 Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum...
  • Page 63 Model AV64NMVETA AV66NMVETA Liquid pipe 19.05 19.05 Gas pipe 41.3 41.3 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 64 Model AV68NMVETA AV70NMVETA Combination 22+22+24 22+24+24 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 191.0 197.5 Rated capacity kBtu/h 651.72 673.90 Rated power input 55.22 55.53 Max. power input 96.45 97.44 Cooling Rated current 93.22 93.74 Max. current 157.94 160.15 3.46 3.56 AEER 6.80...
  • Page 65 Model AV68NMVETA AV70NMVETA Brand Tian Da+Tian Da+Tian Da Tian Da+Tian Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642+Φ642+Φ642 Φ642+Φ642+Φ642+Φ642 Height 198+198+198 198+198+198 Mumber of rows 3+3+3 3+3+3 Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum...
  • Page 66 Model AV68NMVETA AV70NMVETA Liquid pipe 22.2 22.2 Gas pipe 44.5 44.5 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 67 Model AV72NMVETA AV74NMVETA Combination 24+24+24 24+24+26 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 204.0 209.5 Rated capacity kBtu/h 696.08 714.84 Rated power input 55.83 58.47 Max. power input 98.43 100.97 Cooling Rated current 94.26 98.71 Max. current 162.36 167.10 3.65 3.58 AEER 6.98...
  • Page 68 Model AV72NMVETA AV74NMVETA Brand Tian Da+Tian Da+Tian Da Tian Da+Tian Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642+Φ642+Φ642 Φ642+Φ642+Φ642+Φ642 Height 198+198+198 198+198+198 Mumber of rows 3+3+3 3+3+3 Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum...
  • Page 69 Model AV72NMVETA AV74NMVETA Liquid pipe 22.2 22.2 Gas pipe 44.5 44.5 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 70 Model AV76NMVETA AV78NMVETA Combination 24+26+26 26+26+26 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 215.0 220.5 Rated capacity kBtu/h 733.61 752.38 Rated power input 61.10 63.74 Max. power input 103.51 106.05 Cooling Rated current 103.15 107.60 Max. current 171.84 176.57 3.52 3.46 AEER 6.85...
  • Page 71 Model AV76NMVETA AV78NMVETA Brand Tian Da+Tian Da+Tian Da Tian Da+Tian Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642+Φ642+Φ642 Φ642+Φ642+Φ642+Φ642 Height 198+198+198 198+198+198 Mumber of rows 3+3+3 3+3+3 Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum Hydrophilic aluminum...
  • Page 72 Model AV76NMVETA AV78NMVETA Liquid pipe 22.2 22.2 Gas pipe 44.5 44.5 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 73 Model AV80NMVETA AV82NMVETA Combination 20+20+20+20 20+20+20+22 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 224.0 229.5 Rated capacity kBtu/h 764.32 783.09 Rated power input 66.47 68.16 Max. power input 115.64 118.55 Cooling Rated current 112.21 115.06 Max. current 185.20 190.81 3.37 3.37 AEER 6.82...
  • Page 74 Model AV80NMVETA AV82NMVETA Tian Da+Tian Da+Tian Tian Da+Tian Da+Tian Brand Da+Tian Da Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642+Φ642+Φ642 Φ642+Φ642+Φ642+Φ642 Height 198+198+198+198 198+198+198+198 Mumber of rows 3+3+3+3 3+3+3+3 Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) Hydrophilic aluminum...
  • Page 75 Model AV80NMVETA AV82NMVETA Liquid pipe 22.2 22.2 Gas pipe 44.5 44.5 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 76 Model AV84NMVETA AV86NMVETA Combination 20+20+22+22 20+22+22+22 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 235.0 240.5 Rated capacity kBtu/h 801.85 820.62 Rated power input 69.84 71.53 Max. power input 121.46 124.37 Cooling Rated current 117.91 120.75 Max. current 196.42 202.03 3.36 3.36 AEER 6.71...
  • Page 77 Model AV84NMVETA AV86NMVETA Tian Da+Tian Da+Tian Tian Da+Tian Da+Tian Brand Da+Tian Da Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642+Φ642+Φ642 Φ642+Φ642+Φ642+Φ642 Height 198+198+198+198 198+198+198+198 Mumber of rows 3+3+3+3 3+3+3+3 Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) 21×18.186...
  • Page 78 Model AV84NMVETA AV86NMVETA Liquid pipe 22.2 25.4 Gas pipe 44.5 50.8 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 79 Model AV88NMVETA AV90NMVETA Combination 22+22+22+22 22+22+22+24 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 246.0 252.5 Rated capacity kBtu/h 839.39 861.57 Rated power input 73.21 73.52 Max. power input 127.28 128.27 Cooling Rated current 123.60 124.12 Max. current 207.64 209.85 3.36 3.43 AEER 6.61...
  • Page 80 Model AV88NMVETA AV90NMVETA Tian Da+Tian Da+Tian Tian Da+Tian Da+Tian Brand Da+Tian Da Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642+Φ642+Φ642 Φ642+Φ642+Φ642+Φ642 Height 198+198+198+198 198+198+198+198 Mumber of rows 3+3+3+3 3+3+3+3 Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) 21×18.186...
  • Page 81 Model AV88NMVETA AV90NMVETA Liquid pipe 25.4 25.4 Gas pipe 50.8 50.8 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 82 Model AV92NMVETA AV94NMVETA Combination 22+22+24+24 22+24+24+24 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 259.0 265.5 Rated capacity kBtu/h 883.74 905.92 Rated power input 73.83 74.14 Max. power input 129.26 130.25 Cooling Rated current 124.64 125.16 Max. current 212.06 214.27 3.51 3.58 AEER 6.80...
  • Page 83 Model AV92NMVETA AV94NMVETA Tian Da+Tian Da+Tian Tian Da+Tian Da+Tian Brand Da+Tian Da Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642+Φ642+Φ642 Φ642+Φ642+Φ642+Φ642 Height 198+198+198+198 198+198+198+198 Mumber of rows 3+3+3+3 3+3+3+3 Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) 21×18.186...
  • Page 84 Model AV92NMVETA AV94NMVETA Liquid pipe 25.4 25.4 Gas pipe 50.8 50.8 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 85 Model AV96NMVETA AV98NMVETA Combination 24+24+24+24 24+24+24+26 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 272.0 277.5 Rated capacity kBtu/h 928.10 946.87 Rated power input 74.44 77.08 Max. power input 131.24 133.78 Cooling Rated current 125.68 130.13 Max. current 216.48 221.22 3.65 3.60 AEER 6.99...
  • Page 86 Model AV96NMVETA AV98NMVETA Tian Da+Tian Da+Tian Tian Da+Tian Da+Tian Brand Da+Tian Da Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642+Φ642+Φ642 Φ642+Φ642+Φ642+Φ642 Height 198+198+198+198 198+198+198+198 Mumber of rows 3+3+3+3 3+3+3+3 Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) 21×18.186...
  • Page 87 Model AV96NMVETA AV98NMVETA Liquid pipe 25.4 25.4 Gas pipe 50.8 54.1 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 88 Model AV100NMVETA AV102NMVETA Combination 24+24+26+26 24+26+26+26 Power supply Ph/V/Hz 3/380~415/50/60 3/380~415/50/60 Rated capacity 283.0 288.5 Rated capacity kBtu/h 965.64 984.40 Rated power input 79.71 82.35 Max. power input 136.32 138.86 Cooling Rated current 134.57 139.02 Max. current 225.96 230.69 3.55 3.50 AEER 6.89...
  • Page 89 Model AV100NMVETA AV102NMVETA Tian Da+Tian Da+Tian Tian Da+Tian Da+Tian Brand Da+Tian Da Da+Tian Da Model Material ABS+20%GF ABS+20%GF Outdoor fan Type Axial Axial Diameter Φ642+Φ642+Φ642+Φ642 Φ642+Φ642+Φ642+Φ642 Height 198+198+198+198 198+198+198+198 Mumber of rows 3+3+3+3 3+3+3+3 Tube pitch(a)x row pitch(b) 21×18.186 21×18.186 Fin spacing Fin type(code) 21×18.186...
  • Page 90 Model AV100NMVETA AV102NMVETA Liquid pipe 25.4 25.4 Gas pipe 54.1 54.1 Oil pipe Total pipe length 1000 1000 Max. pipe 260/220 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 110/90 uint*1 Standard Diff. indoor/ 50/40 50/40 outdoor unit Max./standard Diff. 30/18 30/18 indoor/indoor unit*1...
  • Page 91 Model AV104NMVETA Combination 26+26+26+26 Power supply Ph/V/Hz 3/380~415/50/60 Rated capacity 294.0 Rated capacity kBtu/h 1003.17 Rated power input 84.98 Max. power input 141.40 Cooling Rated current 143.47 Max. current 235.43 3.46 AEER 6.80 Rated capacity 294.0 Rated capacity kBtu/h 1003.17 Rated power input 86.50 Max.
  • Page 92 Model AV104NMVETA Brand Tian Da+Tian Da+Tian Da+Tian Da Model Material ABS+20%GF Outdoor fan Type Axial Diameter Φ642+Φ642+Φ642+Φ642 Height 198+198+198+198 Mumber of rows 3+3+3+3 Tube pitch(a)x row pitch(b) 21×18.186 Fin spacing Fin type(code) 21×18.186 Fin coating Type Optional Salt Spray Test Duration Hour Outdoor coil INNERGROOVE TUBE...
  • Page 93 Model AV104NMVETA Liquid pipe 25.4 Gas pipe 54.1 Oil pipe Total pipe length 1000 Max. pipe 260/220 Frigerant length(Equivalent/Actual) piping Max. Diff. indoor/outdoor 110/90 uint*1 Standard Diff. indoor/ 50/40 outdoor unit Max./standard Diff. 30/18 indoor/indoor unit*1 Connectable indoor unit ratio 50~130 Maximum indoor units Piece...

  • Page 94: Dimension

    4. Dimension AV08/10/12/14/16NMVETA No. Name Remark Using the rubber plug in the ① Signal line hole（Ø25） unit's attachment for protection ② Pipe outlet for 2-pipe system ③ Pipe outlet for 3-pipe system According to the wire diameter size to choose the appropriate Power supply hole line hole, and using the line ④...
  • Page 95 AV18/20/22/24/26NMVETA No. Name Remark Using the rubber plug in the ① Signal line hole（Ø25） unit's attachment for protection ② Pipe outlet for 2-pipe system ③ Pipe outlet for 3-pipe system According to the wire diameter size to choose the appropriate Power supply hole line hole, and using the line ④...

  • Page 96: Center Of Gravity

    5. Center of gravity AV08/10/12/14/16NMVETA Coordinate position (x, y, z: 471, 375, 725)
  • Page 97 AV18/20/22/24/26NMVETA Coordinate position (x, y, z: 650, 380, 706)

  • Page 98: Piping Diagram

    6. Piping diagram AV08/10/12/14/16NMVETA...
  • Page 99 AV18/20/22/24/26NMVETA...
  • Page 100 Part name Sign Function Data Remark ANB52FZJMT： 0.31Ω Capacity control, to meet indoor load through Compressor ANB66FZXMT： 0.23Ω 20°C frequency adjustment. ANB78FZXMT： 0.23Ω Pressure switch HPS1/i Protection control for high pressure. 4.15Mpa, OFF setting In heating, compressor frequency adjustment 0~4.15MPa. and protection control for abnormal pressure.

  • Page 101: Refrigerant Flow

    7. Refrigerant flow Cooling operation...

  • Page 102: Heating Operation

    Heating operation...

  • Page 103: Functional Parts Layout

    8. Functional parts layout AV08/10/12/14/16NMVETA...
  • Page 104 AV18/20/22/24/26NMVETA...
  • Page 105 Electric control box assy. parts layout AV08/10/12/14/16/18NMVETA Outer layer Inner layer AV20/22/24/26NMVETA Outer layer Inner layer...

  • Page 106: Wiring Diagram

    9. Wiring diagram...
  • Page 108 Description of the main board port definition Port Port description L/N/G AC Power input Liquid jetting to compressor SV10 Drain the oil from compressor 2 Drain the oil from compressor 1 Balance pressure(Load-OFF) Hot and cold switching HEAT1 Heating band of compressor 1 HEAT2 Heating band of compressor 2 HPS2...

  • Page 109: Capacity Calculation Due To Capacity Modification Coefficient

    10. Capacity calculation due to capacity modification coefficient (1) Calculation method of cooling capacity---Refrigerating capacity to be known=Refrigerating capacity x(AxBxCxDxE) W A Capacity compensation coefficient of B Capacity compensation coefficient of outdoor indoor air wet-bulb temperature condition. air dry-bulb temperature condition. Indoor air wet-bulb temperature ●...
  • Page 110 E: Capacity compensation value at different piping length and drop AV10NMVETA AV08NMVETA AV08IMVEVA AV10IMVEVA 1.00 1.00 Liquid pipe: φ12.7 Liquid pipe:φ12.7 Gas pipe: φ22.22 Gas pipe:φ25.4 0.95 0.95 0.90 0.90 Liquid pipe: φ9.52 Liquid pipe:φ9.52 Gas pipe:φ22.22 Gas pipe:φ19.05 0.85 0.85 0.80 0.80...
  • Page 111 AV30NMVETA AV30IMVEVA AV28NMVETA AV28IMVEVA 1.00 1.00 Liquid pipe:φ22.22 Liquid pipe:φ19.05 Gas pipe:φ38.1 Gas pipe:φ31.8 0.95 0.95 0.90 0.90 Liquid pipe:φ15.88 Liquid pipe:φ19.05 Gas pipe:φ28.58 Gas pipe:φ31.8 0.85 0.85 0.80 0.80 60 80 100 120 140 160 180 200 220 240 260 60 80 100 120 140 160 180 200 220 240 260 Pipe length of single way (m) Pipe length of single way (m)
  • Page 112 AV50NMVETA AV48NMVETA AV50IMVEVA AV48IMVEVA 1.00 1.00 Liquid pipe:φ22.22 Liquid pipe:φ22.22 Gas pipe:φ38.1 Gas pipe:φ38.1 0.95 0.95 0.90 0.90 Liquid pipe:φ19.05 Liquid pipe:φ19.05 Gas pipe:φ38.1 0.85 Gas pipe:φ38.1 0.85 0.80 0.80 60 80 100 120 140 160 180 200 220 240 260 60 80 100 120 140 160 180 200 220 240 260 Pipe length of single way (m) Pipe length of single way (m)
  • Page 113 AV72NMVETA AV74NMVETA AV72IMVEVA AV74IMVEVA 1.00 1.00 Liquid pipe:φ25.4 Liquid pipe:φ25.4 Gas pipe:φ50.8 Gas pipe:φ50.8 0.95 0.95 0.90 0.90 Liquid pipe:φ22.22 Liquid pipe:φ22.22 Gas pipe:φ44.5 Gas pipe:φ44.5 0.85 0.85 0.80 0.80 60 80 100 120 140 160 180 200 220 240 260 60 80 100 120 140 160 180 200 220 240 260 Pipe length of single way (m) Pipe length of single way (m)
  • Page 114 (2) Calculation method of heating capacity---Heating capacity to be known=Heating capacity x(AxBxCxDxExF) W A. Capacity modification value B. Capacity modification value under outdoor air C. Capacity modification value under indoor air dry-bulb wet-bulb temperature condition. under airflow variation rate of temperature condition.

  • Page 115: Selection Procedure

    11. Selection procedure Calculate each indoor load separately Select the indoor units that matches the indoor load Perform temperature correction to calculate the actual capacity Reselect the of the indoor unit indoor units Select the outdoor units Indoor actual capacity indoor load ≥...

  • Page 116: Operation Range

    12. Operation range Cooling Heating (°CWB) (°CDB) Indoor temperature Indoor temperature...

  • Page 117: Noise Level

    13. Noise level 1) Testing illustrate Sound level meter Vertical view 45° microphone position Height 1.4m...

  • Page 118: Octave Band Level

    2) Octave band level AV08/10NMVETA AV12/14NMVETA AV08/10IMVEVA AV12/14IMVEVA NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 NC-20 NC-20 Limit of Limit of audible audible continuous continuous noise noise 1000 2000 4000 8000 1000 2000 4000 8000 Octave band center frequency(Hz) Octave band center frequency(Hz) AV16NMVETA AV16IMVEVA...

  • Page 119: Installation

    14. Installation 14.1 Safety • If the air conditioner is transferred to the others, this manual should be transferred together. • Before installation, please read "Safety precaution" carefully to confirm the correct installation. • The mentioned precaution includes " WARNING" and " CAUTION". The precaution caused death or heavy injury for faulty installation will be listed in "...
  • Page 120 CAUTION • Execute earthing for the unit. But the earthing wire can not be connected to the gas pipe, water pipe, lightening rod or the telephone earthing wire. Improper earthing will cause electric shock. • Don't install the unit at the place where leaks the flammable gas. Or it will cause fire. •...

  • Page 121: Installation Instruction

    14.2 Installation instruction In installation, please check specially the below items: • If the connected units quantity and the total capacity is in the allowable range? • If the refrigerant pipe length is in the limited range? • If the pipe size is proper? And if the pipe is installed horizontally? •...
  • Page 122 Indoor Combined Allow The most Gather pipe capacity Capacity the most recommended Total indoor Combination type range connected indoor unit capacity (HP) indoor units number 162400 combination(18+20+20) 812~2111 168000 combination(20+20+20) 840~2184 173500 combination(20+20+22) 868~2256 179000 combination(20+22+22) 895~2327 184500 combination(22+22+22) 922~2398 191000 combination(22+22+24) 955~2483...
  • Page 123 • The unit is better not be installed The unit should be installed at the • The place where the water can at the below places, or it will cause place where the cold/hot air or flow fluently. damage. noise will not interfere the •...
  • Page 124 Outline and installation dimensions Fixed hole distance AV08~16NMVETA 800mm Drain hole 750mm 980mm 70mm Exhaust duct connection position Power line outlet (According to the choice of the power line diameter size. The export, use the attached wire into the sheath) Signal line and Line protection Signal wire hole diameter Ø25...
  • Page 125 Outdoor unit installation Standard accessories Please check the attachment is complete, please be sure to use. Place definition Graphic Quantity Remarks position Installation Accessory instruction Rubber Signal line Accessory plug protection Power line Accessory Sheath protection (8HP)(Ø22.22) Reducing Accessory (8~10HP)(Ø25.4) Reducing pipe pipe (8~14HP)(Ø28.58)
  • Page 126 Combination installation dimensions • There should be no obstacles in 2000mm above the top of outdoor unit; • Obstacles around outdoor should be less than 900mm to the bottom of unit. • When multiple modules are installed, the outdoor should be in ranked as the capacity, the larger capacity is closer to the main pipe of gather pipe.
  • Page 127 ˃300mm ˃200mm ˃300mm ˃1000mm 3. Wall higher than the outdoor condenser Place with air inlet hole Notes: a. Fan speed Vs at air inlet is 1.5m/s or below. b. Air outlet height HD=H-h and below 1m. ˃300mm ˃200mm ˃1000mm ˃300mm External air duct...
  • Page 128 Place without air inlet hole Notes: a. Set a 500~1000mm bracket. b. Air outlet height HD=H-h and below 1m. ˃300mm ˃300mm ˃200mm ˃1000mm External air duct 4. The outdoor machine installation should consider the impact of seasonal wind, don't let the wind directly into the unit return air, otherwise it will affect the unit defrosting and related functions.
  • Page 129 Install snow cover Outlet snow cover Snowfall area, please install snow cover, see the right Inlet snow cover picture, to be unaffected by the snow, it is important to set up a high platform, which is calculated according to the maximum amount of snow in the area.
  • Page 130 Install air ducting There are no obstacles in the 2000mm above the outdoor unit; When there are obstacles in the outer plane, there must be a pilot channel, and the wind will be free, the wind will not be short-circuited, and the external static pressure will be 110Pa.

  • Page 131: Installation Procedure

    19.05 is O-type, the pressure preservation will be bad, thus it must be 1/2H type and over the min. thickness. 3. The branch pipe and the gather pipe must be from Haier. 4. When installing the stop valve, refer to the relative operation instruction.
  • Page 132 Pipe specification Outdoor Indoor Liquid pipe Gas pipe Liquid pipe Gas pipe Gas pipe Liquid pipe Liquid pipe pipe outdoor gather pipe the first branch pipe 1. Pipe "A" diameter (between indoor and branch pipe) (depends on indoor pipe) Indoor rated Gas pipe Connecting Liquid Connecting...
  • Page 133 3. Pipe “c” diameter (main pipe, between outdoor gather pipe and the first branch pipe) Outdoor Outdoor Main pipe Enlarged main pipe Main pipe Enlarged main pipe capacity capacity Liquid Liquid Liquid Gas pipe Gas pipe Gas pipe Gas pipe Liquid pipe pipe pipe...
  • Page 134 Allowable piping length and drop between indoor and outdoor 1. Pipe length between outdoors Outdoor gather pipe 1. L1≤10m; L2≤10m; L3≤10m; L4≤10m; L5≤10m; L6≤10m; L1+L3+L5≤10m. 2. Height difference between outdoors: h≤5m. 3. The piping connecting outdoor unit must be placed horizontally or in accordance with the installation of a certain angle (level angle less than 15 degrees), connected with a concave not allowed.
  • Page 135 Proper installation Wrong installation Oil return bend (gas pipe) The height of the vertical section see schedule requirements In order to avoid damage to the pipe, the size of the return bend is referred to as the drawing. Pipe diameter Bending radius Vertical heigh Ø19.05...

  • Page 136: Branch Pipe

    Allowable Pipe length and drop (m) For example Remarks value Total pipe length ≤1100 L1+L2+L3+L4+…+L24 Actual length ≤220 Outdoor to the farthest L1+L2+L3+L6+L8 indoor length Equivalent length ≤260 The outdoor unit to the first branch pipe ≤130 length (main piping) The first branch pipe to the farthest indoor ≤90 L2+L3+L6+L8...
  • Page 137 Pipe installation Important • Please don't let the pipe and the parts in the unit collide each other. • When connecting the pipes, close the valves fully. • Protect the pipe end against the water, impurity into the pipes (welding after being flat, or being sealed with adhesive tape).
  • Page 138 B. Leakage test 1. The outdoor unit has been executed the leakage test in the factory. The pipe should be executed leakage test individually and forbidden to test after connecting with stop valve. 2. Refer to the below figure to charge the nitrogen into the unit to take a test. Never use the chlorin, oxygen, flammable gas in the leakage test.
  • Page 139 Tighten torque as the table below: Stop valve diameter Fastening torque Fastening angle Recommended tool length (mm) (N.m) (°) (mm) Ø6.35 14~18 45~60 Ø9.52 34~42 30~45 Ø12.7 49~61 30~45 Ø15.88 68~82 15~20 Ø19.05 84~98 15~20 D. Additional refrigerant charging Charge the additional refrigerant as liquid state with the gauge. If the additional refrigerant can not be charged totally when the outdoor stops, charge it at the trial mode.

  • Page 140: Heat Insulation

    • This product contains fluorinated greenhouse gases in hermetically sealed system. Do not vent into the atmosphere. Refrigerant type: R410A. See the table above for the mass of charged refrigerant. GWP (Global • Warming Potential): 2088. • A leak check for refrigerant shall be carried out at least every 12 months and by natural persons certified in accordance with the European rules.

  • Page 141: Electric Wiring And The Application

    14.4 Electric wiring and the application Note: 1. Please follow the national electrical standards, all provided parts, raw materials must comply with local laws and regulations. And please professional electrician installation. 2. Power supply must use the rated voltage and air conditioning unit dedicated power supply, power fluctuations in the power supply ratio of less than 2%, and were designed indoor unit, outdoor machine dedicated power.
  • Page 142 Indoor Power Supply 230V/1Ph/50-60HZ L1 N CB-1 CB-2 CB-3 CB-4 Outdoor unit leakage protection switch and circuit breaker Maximum Each module Leakage current Minimum Minimum sectional Power Circuit Model load current circuit (mA) response sectional area of area of earthing source breaker breaker...
  • Page 143 Power line installation instructions 1. Air conditioning unit is class appliance, please be sure to take reliable grounding measures. 2. Earth resistance should meet the national standard GB 50169 requirement. 3. The yellow and green double color line of air conditioning unit is ground wire, do not move for other use, do not cut it.
  • Page 144 Power line installation instructions Note: When connecting the power cord, please be sure to set aside enough length in the outdoor, which is convenient for turning over the electrical box. After the maintenance, remove the 5 fixing screws, the When connecting the power cord, please be sure electric appliance box body is lifted up slightly, and the box to set aside enough length in the outdoor, which is body is rotated to the left, and the steel wire rope in the...
  • Page 145 Communication wiring figure (wireless) Outdoor 1 Outdoor 2 Outdoor 3 Outdoor 4 P Q A B C P Q A B C P Q A B C P Q A B C IGU11 Indoor 1 Indoor 2 Indoor 3 Indoor 4 Indoor n CN34 CN34...

  • Page 146: Branch Pipe Dimension

    15. Branch pipe dimension Unit: mm ID: inner diameter OD: outer diameter Liquid side Gas side connection connection of Model Gas side branch pipe Liquid side branch pipe of branch pipe branch pipe FQG-B335A Φ9.53 Ø19.05 ID9.7 ID16.1 ID6.5 ID12.9 FQG-B506A Φ9.52 Ø22.22...
  • Page 147 Liquid side Gas side connection connection of Model Gas side branch pipe Liquid side branch pipe of branch pipe branch pipe Φ19.05 FQG-B1350A ID16.1 Ø28.6 ID12.9 ID9.7 ID28.8 ID6.5 ID49 Φ44.5*1.5 41.3*41.3*38.1 Φ44.5*1.5 41.3*41.3*38.1 Φ44.5*1.5 Φ44.5*1.5 FQG-B2040A 38.1*1.3 38.1*1.3...

  • Page 148: Gather Pipe Dimension

    16. Gather pipe dimension Gather pipe is used for combination of outdoor unit. HZG-20B (for 2 basic modules); HZG-30B(for 3 basic modules). Unit: mm, ID: inner diameter; OD: outer diameter. Note: Cut off the pipe from its middle when using Connection of Model Side...

  • Page 149: Trial Operation

    17. Trial operation 17.1 Confirmation by electrifying Contents to be confirmed Result Whether there is power on interface board of the outdoor unit, whether the digital tube is displaying and whether the displayed data on dip switch panel and the tube are variable. For MRV outdoor unit, indoor unit number displayed on the digital tube is consistent with the actual number when dip switch panels SW1, SW2 and SW3 are turned to “0 3 2”, and dip switch code BM1-2 is turned from OFF to ON.

  • Page 150: Trial Operation Confirmation

    17.3 Trial operation confirmation The test run confirmation, in principle, shows that all the indoor units should be confirmed one by one. The improper connection of refrigeration pipe and control wire cannot be confirmed when all the indoor units are running simultaneously.
  • Page 151 PCB board of indoor unit is in bad condition; Wires around the PCB board of indoor unit are broken and the insertion of socket is poor. Whether Whether there Whether there is AC15V Whether the fan is AC15V voltage another indoor is rotating in air supply voltage between between terminal B and...
  • Page 152 Normal Heating mode is preferred. Select non-preferred mode (cooling) or operation mode, which is different from selection way of switch setting. The abnormity of Indoor unit Indoor unit PCB board is in bad condition; Wired controller is in bad condition. Whether there PCB board in wired controller is in bad condition;...
  • Page 153 B. Air blower operation confirmation Start Set the operation to air supply mode, and press the operation switch. Whether there is air Check the indoor unit fan, sent out of the outlet of fan motor and air blower indoor unit circuit Whether there is Check the surrounding...
  • Page 154 C. Cooling operation confirmation Start Set the operation to cooling mode and hold Once stop, the outdoor down the operation switch for more than 5 unit can’t restart until 3 seconds in shutdown mode. to 5 minutes later. operation condition of the Whether the cold air is blown out compressor Whether air circulation is in good...
  • Page 155 D. Heating operation confirmation Start Set the operation to heating mode and hold Once stop, the outdoor down the operation switch for more than 5 unit can't restart until 3 seconds in shutdown mode. to 5 minutes later. operation condition of the Whether the warm air is blown out compressor Whether the air circulation is in...
  • Page 156 (Note 1)The general standard for temperature difference between inlet and outlet air In "cooling" operation, it is normal that the dry bulb temperature difference between inlet air and outlet air of the air conditioner is over 10°C (at the maximum frequency) after 30 minutes at least. In "heating"...
  • Page 157 1. Connecting methods of device: Position of inserting test device (CN47) Insert one end of data line into the terminal of main PCB CN31 with a two-core terminal, one end connects with 485 device or Gangda device, the other end of the device connects computer.

  • Page 158: Startup

    18. Startup 18.1 Startup procedure 1. The materials preparation before on-site commissioning --Printed drawing of architectural design --Printed installation checking list and system start request --Startup manual --MRV 5 service manual --Trouble shooting and error code 2. Read the attention carefully before start up 3.
  • Page 159 5. Indoor unit --Anti-dust protection during installation --Installed on properly level --Service space reserved at least 50X50cm 6. Outdoor unit -- Installed an anti-vibration at the bottom -- Space (20cm/7.87inch away from each other) -- Gather pipe are the same level -- Breaker -- Communication cable (A / B / C, PQ) 7.

  • Page 160: Wiring-Dip Switch

    18.3 Wiring-dip switch 1. Indoor dip switch setting—Indoor units for MRV5 and indoor units for MRV IV-C are the same, so indoor dip switch setting is completely the same, please check with the service manual. 2. Controller dip switch setting- it’s the same as the controller dip switch setting of MRVIV, please check the service manual.

  • Page 161: Power On

    18.4 Power on 1. For the protection of the compressor, It is required to preheat the compressor oil before start up the indoor and outdoor units. 6 hours of preheating is the standard time for the preheating, the engineers have to wait for 6 hours until the compressor oil reaches the required temp.

  • Page 162: Mrv 5 System Startup Report

    18.7 MRV 5 system startup report MRV 5-H ENGLISH BETA 1.2 INSTALATION CHECK LIST AND SYSTEM START UP REQUEST PROJECT: CUSTOMER: INSTALLER: CITY/COUNTRY: ADDRESS: CONTACT TEL: DATE: PROJECT CONFIGURATION SYSTEM 1 CODE MODEL SYSTEM 2 CODE MODEL SYSTEM 3 CODE...
  • Page 163 MRV 5-H ENGLISH BETA 1.2 INSTALATION CHECK LIST 1. PREINSTALATION 1.1. REFRIGERATION PIPING * Refrigerant piping are correctly insulated. * Refrigerant piping have enough fixed supports. * All welds were made with permanent nitrogen flow, to create an inert atmosphere.
  • Page 164 MRV 5-H 1.6. OUTDOOR UNITS * Is Installed an anti-vibration system for the outdoor units. * The ground where the outdoor units are must be properly leveled. * 1 meter of distance is guaranteed for the outdoor units of walls and others.
  • Page 165 MRV 5-H ENGLISH BETA 1.2 SYSTEM START UP LIST SYSTEM CODE MODEL * Refrigerant recharge calculation Liquid pipe size Multiple factor Length Subtotal 6.35 (1/4") 0.022 9.52 (3/8") 0.054 12.7 (1/2") 0.11 15.88 (3/4") 0.17 19.05 (5/8") 0.25 22.22 (7/8") 0.35...
  • Page 166 MRV 5-H ENGLISH BETA 1.2 START UP * Do measurements with all units switched ON after 1 hour. Items SW9/10/11 Master SW9/10/11 SLAVE 1 SW9/10/11 SLAVE 2 Pressure Pd1 (bar) 0/0/1 1/0/1 2/0/1 Pressure Ps (bar) 0/2/1 1/2/1 2/2/1 Temp.Td1 (°C)

  • Page 167: Outdoor Control Board Photo

    19. Outdoor control board photo PCB code: 0151800256C SW1 SW2 SW3 SMG2 SMG1 (UP) (STOP) (START) (DOWN) LED1 LED3 LED4 LED5 LED7 BUS-B STOP LED6 BUS-A...
  • Page 168 Function Function Power connector Emergency stop signal connector Solenoid valve connector Monitoring PC WIFI connector Low-power standby control connector Power suppression signal connector Compressor heating tape connector Expansion PCB 12VDC power supply connector High pressure switch connector Zigbee wireless communication connector Outdoor EEV connector Expansion PCB communication connector Ambient temperature, coil temperature sensor...
  • Page 169 Compressor driver board: 0151800259C Function Connected reactor connector Low-power standby control connector Connect electrolytic capacitor PCB connector Module three-phase power input connector Module drive output connector Dip switch Programming connector Main PCB and fan motor communicating connector 15VDC power output connector...
  • Page 170 Filter board: 0150401866 Function Filter board output connector Filter board ground wire connector Filter board power input connector...
  • Page 171 Capacitor board:0150401863 Function Electrolytic capacitor negative connector Fan DC power supply connector Electrolytic capacitor positive connector...

  • Page 172: Outdoor Pcb Dip Switch Setting

    20. Outdoor PCB dip switch setting LED light definition: • LED1: power supply lamp Power on light • LED3: electronic expansion valve LEVa1, LEVa2, fault lamp No fault, not light • LED4: electronic expansion valve LEVb, LEVc, fault lamp No fault, not light •...
  • Page 173 ① BM1 introduction Begin to search outdoor Outdoor searching BM1_1 after startup Stop searching outdoor and lock the quantity Begin to search indoor Indoor searching BM1_2 after startup Stop searching indoor and lock the quantity Allow(must be electrified for 6 hours) start up after pre- BM1_3 Group class...
  • Page 174 ② BM2 introduction BM2_1 BM2_2 New communication protocol type New communication Group class BM2_1 Wired 9600bps general protocol protocol type setting (it is (physical master BM2_2 (default) valid when BM1_6 is OFF) unit is valid) Wireless 9600bps communication Heat pump (default) Outdoor heat pump mode BM2_3 setting (it is valid when...
  • Page 175 ③ BM3 introduction BM3_1 BM3_1 BM3_2 BM3_3 Outdoor BM3_2 Outdoor type selection Local class MRV5-H outdoor unit BM3_3 BM3_4 Reserved Default BM3_5 BM3_6 BM3_7 BM3_8 Outdoor horse 10HP 12HP BM3_5 14HP BM3_6 Outdoor horse power 16HP BM3_7 setting BM3_8 18HP 20HP 22HP 24HP...
  • Page 176 Outdoor digital tube display settings The contents of the display are defined as follows: • Key parts: long press the left START (SW5) control to enter, short press above UP (SW4) data increase, short press down DOWN (SW7) data reduction, long press the right STOP (SW6) control exit •...
  • Page 177 Function Digital tube LD1 ~ 4 display (1) press START (SW5) for 2 seconds, to enter setting state, the instruction value is flashing displayed Forced indoor cooling / 14（E） (2) press UP (SW4) or DOWN (SW7) to adjust instruction (COOL/HEAT/OFF). heating / shutdown (3) after finish the adjustment, press STOP (SW6) for 2 seconds, execute the setting instruction and stop flashing...
  • Page 178 Function Digital tube LD1 ~ 4 display Outdoor unit LEVa1 open degree 0---470pluse Press START (SW5) for 2 seconds, 1111, enter the Outdoor unit LEVa2 open degree setting state: flashing, press UP (SW4) valve fully open, press DOWN (SW7) the valve is fully closed; Outdoor unit LEVb open degree 2min later automatically exit the setting state Press STOP (SW6) for 2 seconds, display 0000, quit...
  • Page 179 Function Digital tube LD1 ~ 4 display Outdoor 14（E） 15（F） Inverter compressor INV1 module temperature unit Unit: address 15（F） 15（F） Inverter compressor INV2 module temperature System status display and control (host) Function Digital tube LD1 ~ 4 display Refrigerant type 410A represents 410A refrigerant LD1：The total number of outdoor unit LD2：Display “-”...
  • Page 180 E2 control parameters display and setting Each need to be set, setting method: (1)Press START (SW5) for 2 seconds, display 1111, enter the set state, flashing display the current value (2)According to UP (SW4) or DOWN (SW7) adjustment parameters (3)After the adjustment is completed <A>...
  • Page 181 Control Function Digital tube LD1 ~ 4 display range 15（F） Low consumption mode 0-invalid 1-valid Heating standby indoor unit Group class forced adjustment valve (physical 15（F） 0-invalid 1-valid selection.(except three pipe master unit model) is valid) Selection of height between 0-no drop between indoor units.

  • Page 182: Outdoor System Control Function

    = Toci1-ET=4 (°C) 21.3 Fan motor control ① Control of MRV 5-H series DC motor The air supply speed of outdoor unit can be set from speed 0 to 22 in accordance with the operating mode. The operating is commonly at speed 1 - 22, and it is CVT (Continuously Variable Transmission) control between speed 1 and 22.

  • Page 183: Start Control

    The highest speed for each model under normal running condition Single fan Horse power Speed 0~16 0~16 0~17 0~19 0~19 Double fan Horse power Speed 0~19 0~20 0~21 0~22 0~22 a. In cooling mode Startup procedure: When compressor starts up, if Ta≥35°C, the outdoor motor will run at the highest class; if 25°C≤Ta<35°C, the outdoor motor will run at the 15class;...
  • Page 184 [Note] Frequency maintained within the 3 min after starting is as follows: ③ Restart of the compressor 1. In the control of the compressor, in order to prevent the starting at differential pressure, it must take some time to balance the high and low pressure after stopping fully, the restarting will delay automatically, and the compressor can restart after stopping for 3 to 5 minutes.
  • Page 185 2. When operating frequency of one compressor rises up to the 75% of the highest frequency, two compressors in the outdoor unit 1 will work at the same time. 3. When the operation output ratio of the outdoor unit 1 (actual operating frequency/total operating frequency) continue to rise up to the 75%, two compressors in the outdoor unit 2 will also work at the same time.

  • Page 186: Oil Return Control

    21.6 Defrosting control Forward defrosting technology, in the case of less frost the MRV 5-H will be forward defrosting, 4-way valve is not reversed. By the using of solenoid valve by-pass defrosting, indoor unit can normal heating, reduce the indoor temperature fluctuations.

  • Page 187: Pump Down Operation

    Quit condition： ・OR ・After 12 minutes of defrosting operation ・ outdoor Te ≥15 ℃ lasts 1 minute ・OR ・ outdoor Te ≥20 ℃ lasts 30 seconds ・OR ・Pd ≥ 3.5MPa The program reserves the enhanced defrosting control, to solve the problem of defrosting is not clean, the quit condition is changed to ・OR ・After 15 minutes of defrosting operation ・...

  • Page 188: Low Pressure Protection

    21.9 Low pressure protection By SV1 and compressor operating frequency control to maintains the low pressure above a specified value. Ps＜0.1Mpa ·＜0.15Mpa Normal Compressor speed SV1: ON operation upper limitation control · ≥0.20Mpa ≥0.15Mp （Max. 30rps） *Restart after 5 minutes ·＜0.05Mpa ·＜0.03Mpa Protection stop...

  • Page 189: Heater Control

    In heating: ·Td low temperature side (<CT+10°C) is controlled by the[the first stage is indoor unit SH control/ the second stage is compressor output control/ the third stage is minimum number of outdoor units running control ·﹤CT+25°C ·﹤CT+20°C Normal operation Outdoor SH （Indoor SH correction control ※2...

  • Page 190: Target Pressure Control

    21.15 Target pressure control ① Cooling low pressure control Target pressure Ps when cooling Remarks Long piping setting 6.5kg Medium piping setting 7.5kg Factory default setting Short piping setting 8.3kg • During cooling, the operating frequency of compressor is fuzzy controlled based on target Ps. •...

  • Page 191: Current Protection Control

    21.17 Current protection control ① If the current of compressor exceeds the stipulated upper limit value, the operating frequency is reduced for control before the current changes to exit value or below. ② When the current cannot reach the upper limit value or below even at the lowest rotating speed (20rps), the compressor will stop operating.

  • Page 192: Failure Code

    22. Failure code Indication Master unit on wired Failure code digital tube Failure description Remarks controller definition display (hex) AD value is below 11(open circuit) or over 1012(short circuit)for 60 seconds,in cooling Defrosting temp. 20-0 mode,if the sensor is abnormal,the unit does Resumable sensor Tdeffailure not deal with it,besides,in defrosting and...
  • Page 193 Master Indication unit on wired Failure code digital Failure description Remarks controller definition tube (hex) display High pressure switch 30-0 Once HPSi failure If disconnect for 2s continuously,alarm.If alarm 3 confirmation un- times in an hour,confirm the failure High pressure switch resumable 30-1 HPS2failure...
  • Page 194 Indication Master unit on wired digital tube Failure code definition Failure description Remarks controller display (hex) In normal operation,If Td ＜ CT+10℃ Discharging temp.sensor 43-0 for continuous 5 minutes，the unit stops Once Tdi too low protection and alarms.2 minutes and 50 seconds confirmation un- later,resume automatically.If it occurs 3 resumable...
  • Page 195 Indication Master unit on wired Failure code digital tube Failure description Remarks controller definition display (hex) The normal running mode is stop\ cooling 99-0 System abnormality, chip interference. \ heating, and other modes are abnormal. The defrosting and oil return process Resum- The system is abnormal and does not meet 99-1...
  • Page 196 Indication Master unit on wired digital tube Failure code definition Failure description Remarks controller display (hex) When the supply voltage is less than DC420V, the fault alarm. Module DC bus DC When the voltage is greater than undervoltage DC420V, the INV control board is automatically restored When the supply voltage is greater than DC642V, the fault alarm.
  • Page 197 Indication Master unit on wired Failure code digital tube Failure description Remarks controller definition display (hex) (the current frequency is greater than or Compressor equal to INV or +3Hz target frequency 125-0/1 frequency resumable (frequency) target actual frequency >0 & & mismatch =0) for 5 minutes "Fan speed...

  • Page 198: Troubleshooting

    23. Troubleshooting 23.1 Flow chart Failure code LED5 Failure description: Outdoor Indoor unit LED status Defrosting temperature sensors: digital 20 times Tdef failure display tube: 20-0 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting...
  • Page 199 Failure code LED5 Failure description: Outdoor Indoor unit LED status Ambient temperature sensor: digital 20 times Tao failure display tube: LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series 2.
  • Page 200 LED5 Failure description: Failure code Indoor unit LED status Suction temperature sensor: Outdoor 20 times Ts failure digital display tube: 22-2 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series 2.
  • Page 201 FFailure LED5 Failure description: code Indoor unit LED status Discharging temperature sensor: Outdoor 20 times Td1and Td2 failure digital display tube: LED1 LED2 23-0,1 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series 2.
  • Page 202 Failure code LED5 Failure description: Indoor unit LED status Oil temperature sensor: Outdoor digital display 20 times Th, Toil1 and Toil2 failure tube: 24-0, 1, 2 Indoor wired LED1 LED2 controller: Outdoor unit LED status Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 203 Failure code LED5 Failure description: Outdoor Indoor unit LED status Heat exchanger inlet temperature: digital 20 times Toci1 failure display tube: 25-0 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series 2.
  • Page 204 Failure code LED5 Failure description: Outdoor Indoor unit LED status Communication between indoor unit and digital 20 times outdoor unit failure display tube: 26-0, 1, 2 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 205 Failure code LED5 Failure description: Outdoor Indoor unit LED status Outdoor compressor oil temperature too digital 20 times high failure(Toil1 and Toil2) display tube: 27-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 206 Failure code LED5 Failure description: Outdoor Indoor unit LED status High pressure sensor Pd failure digital 20 times display tube: LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series 2.
  • Page 207 Failure code LED5 Failure description: Outdoor Indoor unit LED status Low pressure sensor Ps failure digital 20 times display tube: LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series 2.
  • Page 208 Failure code LED5 Failure description: Outdoor Indoor unit LED status High pressure switch HPS1 and HPS2 fail- digital 20 times display tube: 30-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 209 FFailure LED5 Failure description: code Indoor unit LED status Defrosting temperature sensor failure: Outdoor 20 times Tsco and Tliqsc digital display tube: LED1 LED2 32-0, 1 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 210 LED5 Failure description: Failure code Indoor unit LED status AT24C04 EEPROM communication failure Outdoor AT24C04 EEPROM data check failure 20 times digital display IM EEPROM data or communication failure tube: 33-0, 2, 3 LED1 LED2 Indoor wired Outdoor unit LED status controller: 21 Normal Normal...
  • Page 211 Failure code LED5 Failure description: Outdoor Indoor unit LED status Outdoor compressor discharging tempera- digital 20 times ture (Td1, Td2).too high failure display tube: 34-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 212 Failure code LED5 Failure description: Outdoor Indoor unit LED status Four-way valve reversing failure digital 20 times display tube: 35-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series Check if the difference between 2.
  • Page 213 Failure code LED5 Failure description: Outdoor Indoor unit LED status Outdoor compressor oil temperature (Toil1, digital 20 times Toil2) too low failure display tube: 36-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 214 Failure code LED5 Failure description: Outdoor Low pressure sensor Ps too low protection Indoor unit LED status digital 20 times display tube: 39-0 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series Check if the low pressure...
  • Page 215 Failure code LED5 Failure description: Outdoor Indoor unit LED status Compressor ratio ε too high protection digital 20 times display tube: 39-1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series 2.
  • Page 216 Failure code LED5 Failure description: Outdoor Indoor unit LED status High pressure sensor Pd too high protec- digital 20 times tion display tube: LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series Replace it correctly by after-...
  • Page 217 Failure code LED5 Failure description: Outdoor Indoor unit LED status Outdoor unit compressor discharging tem- digital 20 times perature (Td1, Td2) too low failure display tube: 43-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting...
  • Page 218 Failure code LED5 Failure description: Outdoor Indoor unit LED status Communications between outdoor units digital 20 times failure. display tube: LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series Check if the communication wire Replace it correctly by after- between the outdoor units is normal.
  • Page 219 Failure code LED5 Failure description: Outdoor Indoor unit LED status Communication with INV1 and INV2 module digital 20 times board failure display tube: 46-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 220 Failure code LED5 Failure description: Outdoor Indoor unit LED status Communication with fan motor module digital 20 times board 1, 2 failure display tube: 46-4, 5 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 221 Failure code LED5 Failure description: Outdoor Indoor unit LED status Communication with wireless communicai- digital 20 times ton module failure display tube: LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series 2.
  • Page 222 Failure code LED5 Failure description: Outdoor Indoor unit LED status LEVa1,2 and LEVb,c over current protection digital 20 times display tube: 51-0,1,2,3 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series 2.
  • Page 223 Failure code LED5 Failure description: Outdoor Indoor unit LED status LEVa1,2 and LEVb,c open circuit digital 20 times display tube: 52-0,1,2,3 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series Check if the electronic expansion 2.
  • Page 224 Failure code LED5 Failure description: Outdoor Indoor unit LED status Emergency stop function switch failure digital 20 times display tube: LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series 2.
  • Page 225 Failure code LED5 Failure description: Outdoor Pressure difference between high and low Indoor unit LED status digital 20 times pressure too low failure display tube: 75-0 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 226 Failure code LED5 Failure description: Outdoor Indoor unit LED status Incorrect settings of quantity, address or digital 20 times capacity for outdoor unit display tube: 76-0, 1, 2 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Diagnosis and troubleshooting Diagnosis Troubleshooting...
  • Page 227 Failure code LED5 Failure description: Outdoor Indoor unit LED status Outdoor unit model are set incorrectly digital 20 times display tube: LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series 2.
  • Page 228 Failure code LED5 Failure description: Outdoor Indoor unit LED status Compressor module hardware over current digital 20 times display tube: 110-0 ,1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series R e c t i f y o n s i t e b y a f t e r - s a l e s...
  • Page 229 Failure code LED5 Failure description: Outdoor Indoor unit LED status Fan motor module hardware over current digital 20 times display tube: 110-4, 5 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 230 Failure code LED5 Failure description: Outdoor Indoor unit LED status Compressor out of control digital 20 times display tube: 111-0 ,1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series Replace on site by after-sales Check if the supply voltage is normal...
  • Page 231 Failure code LED5 Failure description: Outdoor Indoor unit LED status Compressor module radiator temp. too high digital 20 times display tube: 112-0 ,1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 232 Failure code LED5 Failure description: Outdoor Indoor unit LED status Fan motor module radiator temp. too high digital 20 times display tube: 112- 4, 5 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 233 Failure code LED5 Failure description: Outdoor Indoor unit LED status Compressor module DC BUS under voltage digital 20 times display tube: 114-0 ,1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 234 Failure code LED5 Failure description: Outdoor Indoor unit LED status Fan motor module DC BUS under voltage digital 20 times display tube: 114-4, 5 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 235 Failure code LED5 Failure description: Outdoor Indoor unit LED status Compressor module DC BUS over voltage digital 20 times display tube: 115-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 236 Failure code LED5 Failure description: Outdoor Indoor unit LED status Compressor module software over current digital 20 times display tube: 117-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series Check if the supply voltage is normal.
  • Page 237 Failure code LED5 Failure description: Outdoor Indoor unit LED status Fan motor module software over current digital 20 times display tube: 117- 4, 5 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 238 Failure code LED5 Failure description: Indoor unit LED status Current detecting circuit abnormal of com- Outdoor digital 20 times pressor module display tube: 119-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller77 Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 239 Continued Failure code LED5 Failure description: Indoor unit LED status Current detecting circuit abnormal of com- Outdoor digital 20 times pressor module display tube: 119-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller77 Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 240 Continued LED5 Failure description: Failure code Indoor unit LED status Current detecting circuit abnormal of Outdoor digital 20 times compressor module display tube: 119-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller77 Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 241 Failure code LED5 Failure description: Outdoor Indoor unit LED status Compressor module power supply abnor- digital display 20 times tube: 120-0, 1 LED1 LED2 121-0, 1 Indoor wired Outdoor unit LED status controller: 78, Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 242 Failure code LED5 Failure description: Radiator temp. sensor of compressor mo- Outdoor Indoor unit LED status digital 20 times dule is abnormal. display tube: 122-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller: 7A Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting...
  • Page 243 Failure code LED5 Failure description: Outdoor Indoor unit LED status Hardware instantaneous over current of the compressor module rectifier side digital display 20 times tube: 123-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller: 78, Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting...
  • Page 244 Failure code LED5 Failure description: Outdoor Indoor unit LED status Compressor module three-phase power failure digital display 20 times tube: 124-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller: 78, Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series...
  • Page 245 Failure code LED5 Failure description: Outdoor Indoor unit LED status Compressor frequency un-match digital 20 times display tube: 125-0, 1 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series 2.
  • Page 246 Failure code LED5 Failure description: Outdoor Indoor unit LED status Fan motor speed un-match digital 20 times display tube: 125-4, 5 LED1 LED2 Indoor wired Outdoor unit LED status controller: Normal Normal 1. Model Failure diagnosis and troubleshooting Diagnosis Troubleshooting MRV 5 series Whether the power supply voltage is 2.

  • Page 247: Lack Of Refrigerant Judgment Method

    23.2 Lack of refrigerant judgment method (1) Refer to the R410A system static balance pressure reference value form (2) Check if the temp. difference between coil pipe and ambient temp. less than 4 C, if yes, it means the system lack of refrigerant.

  • Page 248: The Checking Method For The Valve

    23.3 The checking method for the valve 1. After the valve is energized, listen to the sound of valve action, if no action enter the next checking. For the solenoid valve: check if the PCB terminal has 220V output, if yes, change the solenoid valve coil, if not OK, change the solenoid valve body.

  • Page 249: Fan Motor Detection Standard

    23.5 Fan motor detection standard Fan motor code: 0150401918 Expected readings of control Expected readings of DC fan PWB VDC outputs to DCFM motor circuit board resistances Multi meter test points for VDC Multi meter test points for Ω Multimeter Multimeter Multimeter Multimeter...
  • Page 250 Fan motor code: 0150401919 Expected readings of control Expected readings of DC fan PWB VDC outputs to DCFM motor circuit board resistances Multi meter test points for VDC Multi meter test points for Ω Multimeter Multimeter Multimeter Multimeter DCFM PWB PCB DC volts red probe black probe...

  • Page 251: Power Module Detection Standard

    23.6 Power module detection standard CN21 CN24 CN22 Terminal name Standard CN21 DC 15V CN22 DC 5V CN24 DC 5V Multimeter Multimeter Standard Testing terminal Standard red prode black prode U and W ∞ About 1.411MΩ U and V ∞ About 1.411MΩ...

  • Page 252: Compressor Detection Standard

    23.7 Compressor detection standard Testing terminal Resistance value U and W About 300MΩ U and V About 300MΩ W and V About 300MΩ Note: measure after removing the connection wires...

  • Page 253: Sensor Resistance Table

    23.8 Sensor resistance table Model Name Code Characteristic Tao ambient temp. sensor 0150401910 R25=10KΩ Td1 compressor 1 discharge temp. sensor 0150401914 R80=50KΩ AV08NMVETA AV10NMVETA AV12NMVETA Td2 compressor 2 discharge temp. sensor 0150401915 R80=50KΩ AV14NMVETA AV16NMVETA Toci1/Ts sensor 0150401911 R25=10KΩ AV18NMVETA AV20NMVETA Tdef defrosting temp.
  • Page 254 R80=50kΩ±3% B25/80=4450K±3% Temp Resistance (kΩ) % (Resist. Tol) (°C) Rmax R (t) Normal Rmin MAX (+) MIN (-) 1749.014 1921.993 2094.972 1651.431 1813.265 1975.099 8.93 8.93 1560.165 1711.646 1863.127 8.85 8.85 1474.737 1616.593 1758.449 8.78 8.78 1394.709 1527.611 1660.513 1319.683 1444.25 1568.817 8.63...
  • Page 255 R80=50kΩ±3% B25/80=4450K±3% Temp Resistance (kΩ) % (Resist. Tol) (°C) Rmax R (t) Normal Rmin MAX (+) MIN (-) 272.329 290.407 308.485 6.23 6.23 260.427 277.493 294.559 6.15 6.15 249.104 265.216 281.328 6.08 6.08 238.329 253.541 268.753 228.073 242.437 256.801 5.93 5.93 218.308 231.873...
  • Page 256 R80=50kΩ±3% B25/80=4450K±3% Temp Resistance (kΩ) % (Resist. Tol) (°C) Rmax R (t) Normal Rmin MAX (+) MIN (-) 64.988 67.415 69.842 62.613 64.901 67.189 3.53 3.53 60.337 62.493 64.649 3.45 3.45 58.154 60.185 62.216 3.38 3.38 56.06 57.973 59.886 54.051 55.852 57.653 3.23...
  • Page 257 R80=50kΩ±3% B25/80=4450K±3% Temp Resistance (kΩ) % (Resist. Tol) (°C) Rmax R (t) Normal Rmin MAX (+) MIN (-) 20.067 21.049 22.031 4.67 4.67 19.408 20.372 21.336 4.73 4.73 18.773 19.72 20.667 18.162 19.091 20.02 4.87 4.87 17.573 18.485 19.397 4.93 4.93 17.005 17.9...
  • Page 258 R25=10kΩ±3% B25/50=3700K±3% Temp Resistance (kΩ) % (Resist. Tol) (°C) Rmax R (t) Normal Rmin MAX (+) MIN (-) 145.819 135.018 124.217 138.071 129.126 120.181 6.93 6.93 131.793 123.339 114.885 6.85 6.85 125.665 117.684 109.703 6.78 6.78 119.706 112.18 104.654 6.71 6.71 113.933 106.843...
  • Page 259 R25=10kΩ±3% B25/50=3700K±3% Temp Resistance (kΩ) % (Resist. Tol) (°C) Rmax R (t) Normal Rmin MAX (+) MIN (-) 24.742 23.687 22.632 4.45 4.45 23.61 22.619 21.628 4.38 4.38 22.538 21.607 20.676 4.31 4.31 21.522 20.647 19.772 4.24 4.24 20.559 19.737 18.915 4.16 4.16...
  • Page 260 R25=10kΩ±3% B25/50=3700K±3% Temp Resistance (kΩ) % (Resist. Tol) (°C) Rmax R (t) Normal Rmin MAX (+) MIN (-) 5.36 5.151 4.942 4.06 4.06 5.166 4.961 4.756 4.13 4.13 4.978 4.778 4.578 4.19 4.19 4.799 4.603 4.407 4.25 4.25 4.625 4.434 4.243 4.31 4.31...
  • Page 261 R25=10kΩ±3% B25/50=3700K±3% Temp Resistance (kΩ) % (Resist. Tol) (°C) Rmax R (t) Normal Rmin MAX (+) MIN (-) 1.676 1.578 1.48 6.19 6.19 1.626 1.53 1.434 6.25 6.25 1.578 1.484 1.39 6.31 6.31 1.531 1.439 1.347 6.38 6.38 1.486 1.396 1.306 6.44 6.44...

  • Page 262: Parts Replacement Instructions

    24. Parts Replacement Instructions 24.1 Compressor replacement Take the following procedures to ensure sufficient maintenance space and good visibility. Step 1: Remove the power supply wire and grounding wire of the compressor from the electric control box. Step 2: Remove inside and outside compressor quite...
  • Page 263 Step 3: Remove terminal box cover of compressor Step 4: Remove the discharge temperature sensor Step 5: Remove the compressor wires and grounding wire by unscrewing the 4 screws Step 6: Remove the heater and oil temperature sensor...
  • Page 264 Step 7: Unsoldering the discharge pipe / suction pipe / oil return pipe with a welding torch at the marked position as shown in the picture Step 8: Remove the old compressor by dismantling the 4 compressor fixing nuts...

  • Page 265: Smartlink

    25. Smartlink 25.1 Smartlink Introduction Smartlink is one kind of wireless communication technology, which contains Master wireless module, Slave wireless module and Repeater. 1. Master wireless module, Slave wireless module and Repeater share the same hardware but with different software program inside. 2.Repeater is powered by extra 5V power adapter Master / Slave wireless module Repeater...
  • Page 266 Connectable indoor series Model PCB code PCB version Remarks AB*MCERA 4-way cassette 0151800113 V12.4 AB*MCERA(C) Round flow 4-way cassette AB*MRERA 0151800227 V6.6 MINI 4-way cassette AB*MCERA(M) 0151800244BA V4.1 2-way cassette AB*MBERA 0151800161B V12.4 One way cassette AB*MAERA 0151800244BA V4.1 AC*MCERA Convertible 0151800113 V6.6...

  • Page 267: Smartlink Benefits

    25.2 Smartlink benefits • Easy Installation Traditional wired connection has complex operation procedures, such as wiring, wire threading, wire binding and wire cutting etc. which cost a lot of labor and resources. Smartlink as a wireless communication technology, make installation easier by removing the complex wire connection procedure.

  • Page 268: Smartlink Specification

    25.3 Smartlink specification Item Model BOM No. Spare part code Indoor PCB connection terminal Main IDU Wireless module IGU09 AA9VH2B3P 0151800313C CN34 Slave IDU Wireless Module IGU10 AA9VH1B3P 0151800314B CN34 Repeater IGU11 AA9VH0B3P 0151800321B 25.4 Wiring figure Outdoor 1 Outdoor 2 Outdoor 3 Outdoor 4 P Q A B C...

  • Page 269: Dimension

    25.5 Dimension...

  • Page 270: The Installation Requirement Of Smartlink

    25.6 The installation requirement of Smartlink (1). The Connection requirement of wireless communication system For the MRV system adopting wireless communication, it is recommended to adopt the mix-connection solution of wired and wireless communication, namely the master ODU connecting with one nearest IDU by wire and all IDUs adopting wireless communication with each other within the system.

  • Page 271: The Debugging Guidance Of Smartlink

    25.7 The debugging guidance of Smartlink ODU searching for IDU Set DIP Switch BM1-2 OFF Set BM2-4 on SW1 SW2 SW3 Waiting The units number in LED display tube =real units number? BM1-2 ON,Search ending SW1 SW2 SW3 Waiting for 10 min and checking LED display tube SMG1:Checking error rate% Confirm IDU status...
  • Page 272 Each system can finish automatic networking debugging separately, as shown in the left debugging chart. Note: 1. For the first time of debugging Smartlink wireless communication units, the air conditioner units must be powered on separately, other IDUs without networking are forbidden to be powered on. The units finishing the networking must be powered off and then other units can start networking in sequence.

  • Page 273: Wireless Module

    Wireless module Power Communication quantity indicator Indicator indicator 1. The power indicator After the wireless module is powered on, the indicator light is red. If the power indicator is off, check as the follows: The internal computer board is not powered on or damaged, or the wireless module is damaged. 2.

  • Page 274: Central Control & Bms System For Mrv5-H

    26. Central control & BMS system for MRV5 26.1 Central control system Central controller information used by MRV5-H system Model Max. outdoor system Qty. Max. indoor Qty. YCZ-A004 HC-SA164DBT YCZ-G001 System schematic Max. 64 indoor units Homebus Central controller...
  • Page 275 Communication wire connection example...

  • Page 276: Bms System

    26.2 BMS system BMS information used by MRV5 system Model Max. outdoor system Qty. Max. indoor Qty. HCM-01A HCM-03A 1500 HCM-05A HCM-05 System schematic Max. 64 indoor units Homebus TCP/IP...
  • Page 277 Communication wire connection example...
  • Page 278 System schematic (Billing system） Max. 40 indoor units Homebus IGU02 IGU02 IGU02 IGU02 TCP/IP Communication wire connection example ● Gateway：IGU02 ODU-MRV5 GND GND GND GND GND HB1 485- 485- SUB1 SUB2 SUB3 HB2 485+ 485+ Gateway：IGU02 ODU-MRV5 GND GND GND GND GND HB1 485- 485- SUB1 SUB2 SUB3 HB2 485+ 485+ ●...

  • Page 279: Dip Switch Setting For Address

    26.3 Dip switch setting for address Address...
  • Page 280 Address...
  • Page 281 Address...
  • Page 282 Address...
  • Page 283 Address...
  • Page 284 Address...

  • Page 285: Updated Information

    Appendixi table for manual updated information Updated information Version...
  • Page 286 Haier Commercial Air Condition ADDRESS: No.1 Haier Road, Hi-tech Zone, Qingdao 266101 P.R. China Web: Http://www.haier.com Haier reserves the right to make change without any notice.

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