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Haier MRVIII-S AV08NMSETA Design, Installation & Maintenance Instruction

R410a heat pump 50/60hz
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Design,Installation&Maintenance instruction
R410A HEAT PUMP 50/60Hz
AV08NMSETA
AV10NMSETA
AV12NMSETA
SYJS-08-2013REV.B
Edition:2013-08
1

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Summary of Contents for Haier MRVIII-S AV08NMSETA

  • Page 1 Design,Installation&Maintenance instruction R410A HEAT PUMP 50/60Hz AV08NMSETA AV10NMSETA AV12NMSETA SYJS-08-2013REV.B Edition:2013-08...

  • Page 2: Table Of Contents

    CONTENTS 1. General information------------------------------------------------------------ 2. Specification---------------------------------------------------------------------- Indoor model list---------------------------------------------------------------- Refrigerant circuit-------------------------------------------------------------- Dimension------------------------------------------------------------------------- Wiring diagram------------------------------------------------------------------ Capacity table--------------------------------------------------------------------- Performance curves----------------------------------------------------------- Outdoor installation------------------------------------------------------------ Electric installation--------------------------------------------------------- Trial operation --------------------------------------------------------------- Dip switch setting--------------------------------------------------- ---- Digital tube display------------------------------------------------------ Failure code------------------------------------------------------------------- Trouble shooting------------------------------------------------------------ APPENDIX-----------------------------------------------------------------------------...

  • Page 3: General Information

    1. General information MRVIII-S adopts refrigerant R410A. It is with DC inverter technology, high efficiency and energy saving, intelligent control, etc. The system can realize max 1-19 . Features: 1. High efficiency and energy saving 1.1 Adopt High efficient rotary compressor, compact design, compared to the scroll compressor smaller, more efficient in part load operation! 1.2 The compressor bottom design oil temperature sensor, it can control heater on/off station, reduced the compressor standby ratio, saving energy.

  • Page 4: Specification

    2. Specification Equivalent HP Model AV08NMSETA AV10NMSETA AV12NMSETA Nominal cooling capacity(kW) 22.6 33.50 Nominal heating capacity(kW) 31.5 37.50 Heating capacity at low temp.(kW) 21.2 25.6 29.00 Power source 3N ～ .380-400V.50/60Hz IP level IP24 IP24 IP24 Operating/Max.current(A) 9.6 ／ 17.2 13.2 ／...

  • Page 5: Indoor Model List

    3. Indoor model list HIGH WALL EEV INSIDE 4-WAY CASSETTE TYPE / PB-700lB AB092MCERA AS072MGERA AB122MCERA AS092MGERA AB162MCERA AS122MGERA AS162MGERA AS182MGERA AS242MGERA 4-WAY CASSETTE TYPE /PB-950JB MED ESP DUCT TYPE(80/120Pa) AB182MCERA AD182MZERA AB242MCERA AD242MZERA AB282MCERA AD282MZERA AB302MCERA AD302MNERA AB382MCERA AD382MNERA AB482MCERA AD482MNERA LOW ESP DUCT TYPE...

  • Page 6: Refrigerant Circuit

    4. Refrigerant circuit...

  • Page 7: Dimension

    5. Dimension Mounting hole...

  • Page 8: Wiring Diagram

    6. Wiring diagram 0150513195 HPS Td Te1 Te2 Ts Ta Pd Toil 6.3A 250VAC FUSE1 CN1 CN2 CN3 CN4 CN5 CN6 CN7 CN29 CN28 CN30 HEATER2 CN21 CN26 CN32 LED4 LED2 CN31 DISPLAY CN18 CN30 CN20 CN17 SW01 SW02 CONTROL BOARD Tfin CN16 CN24...

  • Page 9: Capacity Table

    7. Capacity table AV08NMSETA Cooling mode Capacity Outdoor Indoor temp.(℃ WB) 18(℃ ) 19(℃ ) factor temp. 14(℃ ) 16(℃ ) 20(℃ ) 22(℃ ) 24(℃ ) (℃ DB) 130% 20.40 2.57 24.10 3.11 27.80 3.60 29.70 4.07 30.90 4.52 31.80 5.08 32.30...
  • Page 10 AV08NMSETA Cooling mode Capacity Outdoor Indoor temp.(℃ WB) 18(℃ ) 19(℃ ) factor temp. 14(℃ ) 16(℃ ) 20(℃ ) 22(℃ ) 24(℃ ) (℃ DB) 100% 15.70 1.99 18.50 2.31 21.30 2.70 22.60 2.88 24.20 3.36 27.00 4.17 30.70 4.85 15.70 2.00...
  • Page 11 AV08NMSETA Cooling mode Capacity Outdoor Indoor temp.(℃ WB) 18(℃ ) 19(℃ ) factor temp. 14(℃ ) 16(℃ ) 20(℃ ) 22(℃ ) 24(℃ ) (℃ DB) 11.00 1.30 13.00 1.55 14.90 1.77 15.90 1.90 16.90 2.23 18.90 2.77 20.90 3.69 11.00 1.31 13.00...
  • Page 12 AV10NMSETA Cooling mode Capacity Outdoor Indoor temp.(℃ WB) 18(℃ ) 19(℃ ) factor temp. 14(℃ ) 16(℃ ) 20(℃ ) 22(℃ ) 24(℃ ) (℃ DB) 130% 25.20 3.57 29.70 4.31 34.20 5.01 36.20 5.66 37.40 6.28 38.10 7.06 39.10 7.92 25.20 3.58...
  • Page 13 AV10NMSETA Cooling mode Capacity Outdoor Indoor temp.(℃ WB) 18(℃ ) 19(℃ ) factor temp. 14(℃ ) 16(℃ ) 20(℃ ) 22(℃ ) 24(℃ ) (℃ DB) 100% 19.40 2.76 22.80 3.20 26.30 3.76 28.00 4.00 29.70 4.68 33.20 5.80 38.30 6.75 19.40 2.77...
  • Page 14 AV10NMSETA Cooling mode Capacity Outdoor Indoor temp.(℃ WB) 18(℃ ) 19(℃ ) factor temp. 14(℃ ) 16(℃ ) 20(℃ ) 22(℃ ) 24(℃ ) (℃ DB) 13.60 1.81 16.20 2.16 18.60 2.47 19.60 2.65 20.80 3.12 23.20 3.87 25.70 5.15 13.60 1.82 16.20...
  • Page 15 AV12NMSETA Cooling mode Indoor temp.(℃ WB) Capacity Outdoor 18(℃ ) 19(℃ ) factor temp. 14(℃ ) 16(℃ ) 20(℃ ) 22(℃ ) 24(℃ ) (℃ DB) 130% 30.14 4.39 35.52 5.30 40.90 6.16 43.30 6.97 44.73 7.56 45.57 7.78 46.76 8.48 30.14 4.40...
  • Page 16 AV12NMSETA Cooling mode Indoor temp.(℃ WB) Capacity Outdoor 18(℃ ) 19(℃ ) factor temp. 14(℃ ) 16(℃ ) 20(℃ ) 22(℃ ) 24(℃ ) (℃ DB) 100% 23.20 3.40 27.27 3.94 31.45 4.64 33.50 4.93 35.52 5.63 39.71 6.39 45.81 7.22 23.20 3.41...
  • Page 17 AV12NMSETA Cooling mode Capacity Outdoor Indoor temp.(℃ WB) 18(℃ ) 19(℃ ) factor temp. 14(℃ ) 16(℃ ) 20(℃ ) 22(℃ ) 24(℃ ) (℃ DB) 16.27 2.23 19.38 2.65 22.25 3.05 23.44 3.27 24.88 3.77 27.75 4.27 30.74 5.52 16.27 2.24 19.38...
  • Page 18 AV08NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ WB) factor ℃ DB ℃ WB 130% -14.7 16.54 4.10 15.86 4.27 15.28 4.79 14.45 6.13 13.77 6.72 13.19 6.29 -12.6 17.47 4.51 16.81 4.62 16.25 5.15 15.44 6.50 14.78 7.04 14.22 6.61 -10.5 18.30...
  • Page 19 AV08NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ WB) factor ℃ DB ℃ WB 110% -14.7 15.79 3.90 15.11 3.99 14.53 4.39 13.70 5.51 13.02 6.33 12.44 5.98 -12.6 16.72 4.29 16.06 4.32 15.50 4.72 14.69 5.84 14.03 6.64 13.47 6.29 -10.5 17.55...
  • Page 20 AV08NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ WB) factor ℃ DB ℃ WB -14.7 15.18 3.37 14.50 3.51 13.92 3.83 13.09 4.81 12.41 5.96 11.83 5.58 -12.6 16.11 3.66 15.45 3.80 14.89 4.12 14.08 5.10 13.42 6.25 12.86 5.87 -10.5 16.94 3.95...
  • Page 21 AV08NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ WB) factor ℃ DB ℃ WB -14.7 14.33 3.12 13.65 3.26 13.07 3.71 12.24 4.56 11.56 5.71 10.98 5.35 -12.6 15.26 3.39 14.60 3.52 14.04 3.99 13.23 4.83 12.57 5.99 12.01 5.62 -10.5 16.09 3.66...
  • Page 22 AV08NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ WB) factor ℃ DB ℃ WB -14.7 13.08 2.91 12.40 3.04 11.82 3.31 10.99 4.16 10.31 5.15 9.73 4.82 -12.6 14.01 3.16 13.35 3.29 12.79 3.56 11.98 4.41 11.32 5.40 10.76 5.07 -10.5 14.84 3.41...
  • Page 23 AV10NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ WB) factor ℃ DB ℃ WB 130% -14.7 20.84 5.66 19.98 5.90 19.25 6.62 18.20 8.47 17.35 9.28 16.61 8.68 -12.6 22.01 6.22 21.18 6.38 20.48 7.11 19.46 8.98 18.63 9.73 17.92 9.13 -10.5 23.06...
  • Page 24 AV10NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ WB) factor ℃ DB ℃ WB 110% -14.7 19.89 5.39 19.03 5.51 18.30 6.06 17.26 7.61 16.40 8.75 15.67 8.26 -12.6 21.07 5.92 20.24 5.96 19.53 6.52 18.51 8.06 17.68 9.17 16.97 8.69 -10.5 22.12...
  • Page 25 AV10NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ WB) factor ℃ DB ℃ WB -14.7 19.12 4.65 18.26 4.85 17.53 5.29 16.49 6.64 15.63 8.23 14.90 7.70 -12.6 20.30 5.05 19.47 5.25 18.76 5.69 17.74 7.04 16.91 8.63 16.21 8.10 -10.5 21.35 5.45...
  • Page 26 AV10NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ WB) factor ℃ DB ℃ WB -14.7 18.05 4.31 17.19 4.50 16.46 5.12 15.42 6.29 14.56 7.89 13.83 7.38 -12.6 19.23 4.68 18.40 4.87 17.69 5.51 16.67 6.67 15.84 8.27 15.14 7.76 -10.5 20.28 5.05...
  • Page 27 AV10NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ WB) factor ℃ DB ℃ WB -14.7 16.48 4.02 15.62 4.19 14.89 4.57 13.84 5.74 12.99 7.12 12.25 6.66 -12.6 17.66 4.37 16.82 4.54 16.12 4.92 15.10 6.08 14.27 7.46 13.56 7.00 -10.5 18.70 4.71...
  • Page 28 AV12NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ W B) factor ℃ DB ℃ WB 130% -14.7 24.79 7.24 23.77 7.55 22.90 8.47 21.66 9.32 20.64 10.30 19.77 9.55 -12.6 26.20 7.96 25.21 8.17 24.37 9.11 23.15 9.87 22.16 10.80 21.32 10.04 -10.5 27.45 8.69...
  • Page 29 AV12NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ W B) factor ℃ DB ℃ WB 110% -14.7 23.67 6.89 22.65 7.05 21.78 7.76 20.54 8.37 19.52 9.71 18.65 9.09 -12.6 25.07 7.58 24.08 7.63 23.24 8.34 22.03 8.87 21.04 10.18 20.20 9.56 -10.5 26.32...
  • Page 30 AV12NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ W B) factor ℃ DB ℃ WB -14.7 22.75 5.95 21.74 6.21 20.87 6.77 19.62 7.30 18.60 9.14 17.73 8.47 -12.6 24.16 6.46 23.17 6.72 22.33 7.28 21.11 7.74 20.12 9.58 19.29 8.91 -10.5 25.41...
  • Page 31 AV12NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ W B) factor ℃ DB ℃ WB -14.7 21.48 5.52 20.46 5.76 19.59 6.56 18.35 6.92 17.33 8.76 16.46 8.12 -12.6 22.88 5.99 21.89 6.23 21.05 7.05 19.84 7.34 18.85 9.18 18.01 8.54 -10.5 24.13...
  • Page 32 AV12NMSETA Heating mode Capacity Outdoor temp. Indoor temp.(℃ W B) factor ℃ DB ℃ WB -14.7 19.61 5.15 18.59 5.37 17.72 5.85 16.47 6.32 15.45 7.90 14.58 7.32 -12.6 21.01 5.59 20.02 5.81 19.18 6.29 17.97 6.69 16.98 8.28 16.14 7.70 -10.5 22.26...

  • Page 33: Performance Curves

    8. Performance curves (1)Calculation methed of refrigerating capacity----refrigerating capacity to be known=refrigerating capacity*(A*B*C*D*E)W A.Capacity compensation B.Capacity compensation value of indoor air wet-bulb value of outdoor air dry-bulb temperature condition temperature condition : 6 : 9 64> Stscnnq `hq cqx3atka sdlodq`stqd .;/ Mmcnnq `hq vds3atka sdlodq`stqd .;/ C.Capacity modification value D.Capacity compensation...
  • Page 34 Notes: 1.The refrigerant pipe should be thickened when the single way length is over 90m. 2.When in cooling mode, outdoor is lower than indoor; or when in heating mode, outdoor is higher than indoor, the compensation factor should be decreased the below value from the above fi gure. vertical height drop between indoor and outdoor adjustment factor...
  • Page 35 F.Capacity compensation value for defrost E.Capacity compensation value of pipe length between outdoors capability of outdoor heat exchanger all the modules in the same 1.00 0.98 0.96 0.94 0.92 64> 0.90 Stscnnq `hq vds3atka sdlodq`stqd .;/ （ ） single-way pipe length...
  • Page 36 (3) Noise level AV08NMSETA AV10NMSETA 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 continous continous noise noise 1000 2000 4000 8000 1000 2000 4000 8000 Octave band center frequency Hz Octave band center frequency Hz AV12NMSETA NC-60 NC-50...

  • Page 37: Outdoor Installation

    9. Outdoor installation • This manual should always be accessible and close to this air condition equipment. • There are two types of indications, " WARNING" and " CAUTION". The indication preventing from death or heavy injury is listed as " WARNING". Even the indication listed as "...
  • Page 38 CAUTION • Grounding wire should be connected with the grounding bar. The grounding wire can not be connected to the gas pipe, water pipe, lightening rod or the telephone grounding wire. Improper grounding may cause electric shock. • Units installed on roof should have appropriate access and handrail. •...
  • Page 39 For installation, please review the items below: • Is the connected units quantity and the total capacity in the allowable range? • Is the refrigerant pipe length in the limited range? • Is the pipe size proper? And if the pipe installed horizontally? •...
  • Page 40 (2) Installation place selection Air-conditioner can't be The unit should be installed The unit should be installed at installed in the place with at the place with good the strong enough place. Or it will infl ammable gas. Or it will ventilation.
  • Page 41 (3) Transportation and hoisting Hoisting • Please remove the outdoor unit to the installation location as far as possible near place befor open the packaging. • Forbid on the equipments to place anything, need to use 2 ropes while promoting outdoor. •...
  • Page 42 Outdoor Installation Installation location • Outdoor unit should be placed in well ventilated and dry place. • Outdoor noise and exhaust should not affect neighbors and around the ventilation. • Ensure the ground steadily reliable. • Do not install the outdoor unit on high oil,salt spray or harmful gases. •...
  • Page 43 Multi Outdoor Min300mm Inlet Outlet Min300mm...
  • Page 44 Case 2: stumbling block on the inlet and top side Single Outdoor Max300mm Max300mm Min360mm Min360mm Multi Outdoor...
  • Page 45 Not more than two sets Case 3:stumbling block on the outlet, both right and left side Single Outdoor Min360mm Min1000mm Min300mm Min150mm...
  • Page 46 Multi Outdoor If h>H, please set the outdoor on the foundation to make sure H≥h. H=The height of outdoor and foundation 0<h≤1/2H Over 600 1/2H<h≤H Over 1400 Note: Avoid making air short cycle in any case.
  • Page 47 Multi Row Outdoor Note: Make sure the distance at least 300mm between two neighbor units and no stumbling block. 0<h≤1/2H Over 600 1/2H<h≤H Over 1400...
  • Page 48 R410A, if the pipe over 19.05 is 0-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 49 Anti-fouling measures First, clean the pipe. Position Installation period Measures More than 1 month Flat the pipe end Outdoor Less than 1 month Flat the pipe end or seal with adhesive tape Indoor Nothing to do with period Pipe specifi cation: The fi...
  • Page 50 3. Pipe "c" diameter (main pipe, between outdoor gather pipe and the fi rst branch pipe) Main pipe Enlarged main pipe Outdoor capacity (kW) Gas pipe (mm) Liquid pipe (mm) Gas pipe (mm) Liquid pipe (mm) 22.4 Ø22.22 Ø9.52 Ø22.22 Ø12.7 28.0 Ø22.22...
  • Page 51 Max. length Pipe in above figure L1+L2+ L3+ L4+ L5+ L6+ Single way total pipe length L7+L8+L9+ L10+ L11 Single way max. pipe length L1+L3+L10+L11 Max. pipe length after 1st branch pipe L3+L10+L11 Main pipe length Height difference between indoors Pipe length between indoor unit and the nearest branch Unit pipe spec and connection method (unit: mm)
  • Page 52 Torque(N . m) Diameter (mm) Ø6.35 14~18 Ø9.52 34~42 Ø12.7 49~61 Ø15.88 68~82 Ø19.05 84~98 Branch pipe Branch pipe selection: Total indoor capacity(100W) model(optional) Less than 335 FQG-B335A More than 335, less than 506 FQG-B506A Outdoor unit type The master unit will choose the closest one to the 1st branch pipe. Note: 1.
  • Page 53 • Since the unit is with R410A, the expanding oil is ester oil, not the mineral oil. • When doing the fl are connection, please do the following: When connecting the expanding pipe, fasten the pipes with double-spanner. The torque refers to the former info. Expanding pipe:A(mm) Projecting length of pipe to be expanded:B(mm) Pipe outer...
  • Page 54 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 fi gure to charge the nitrogen into the unit to take a test. Never use the chlorin, oxygen, fl...
  • Page 55 Because the unit is with refrigerant R410A, the below issues should be paid attention: • To prevent the different oil into the pipe, please use the special tool for R410A, especially for gauge manifold and charging hose. • To prevent the compressor oil into the refrigerant cycle, please use the anti-counter-fl ow adapter.
  • Page 56 L1: Total length of 22.22 liquid pipe; L2: Total length of 19.05 liquid pipe; L3: Total length of 15.88 liquid pipe; L4: Total length of 12.7 liquid pipe; L5: Total length of 9.52 liquid pipe; L6: Total length of 6.35 liquid pipe; Total refrigerant volume charging on site during installation=W2+W3 W: Total refrigerant volume charging on site for maintenance.

  • Page 57: Electric Installation

    10. Electric installation Communication wiring fi gure The outdoor and all indoor units are in parallel through 2 non-polar wires. Three wiring methods between wired controller and indoor unit: A. 1 to multi (group control): one wired controller controls 2~16 indoors, as shown in above figure, indoor 1~indoor 5: indoor 5 is wired control master unit, the others are wired control slave units.
  • Page 58 Power wiring fi gure Please make sure that when the unit is running, the input voltage is no less than 380V; if it is lower than 380V,the unit may run abnormal. power source: 3N~, 380-400V, 50/60Hz power source: 3N~, 380-400V, 50/60Hz power source: 3N~, 380-400V, 50/60Hz power source: 3N~, 380-400V, 50/60Hz power source: 3N~, 380-400V, 50/60Hz...
  • Page 59 Indoor power source and communication wiring Communication wire Rated Rated current of residual Item Power section Wire current of circuit breaker(A) Indoor cable length overcurrent Ground fault Outdoor/ Indoor/ total section breaker interruptor(mA) indoor indoor current (A) response time(S) <10 20A, 30mA, below 0.1s ≥10 and <15 30A, 30mA, below 0.1s...

  • Page 60: Trial Operation

    11.Trial operation 5-minute delay function • If starting up the unit after being powered off, the compressor will run about 5 minutes later against being damaged. Cooling/heating operation • Indoor units can be controlled individually, but cannot run in cool and heat mode at the same time.
  • Page 61 Heating capacity • The heating mode adopts the heat pump type that absorbs outdoor heat energy and releases into indoor. So if outdoor temperature goes down, the heating capacity will decrease. Trial operation • Before trial operation: Before being energized, measure the resistor between power terminal block (live wire and neutral wire) and the grounded point with a multimeter, and check if it is over 1M * .
  • Page 63 standard additional charging every liquid pipe additional liquid pipe diameter total length of liquid pipe (mm) amount(kg/m) charging amount(kg) φ6.35 0.022 φ9.52 0.054 φ12.7 0.11 φ15.88 0.17 φ19.05 0.25 φ22.22 0.35 total additional charging amount...
  • Page 64 4.State setting of trial operation Confirm being electrified Indoor and outdoor are electrified respectively and then check as the following table（the operation condition data refer to the appedix): 5.Trial operation Generally, confirm all the indoors one by one. Please set the other indoors at STOP state. (1)Main power supply and preliminary confirmation <...
  • Page 67 < < /...
  • Page 68 <...
  • Page 69 8.2= 6. Refrigerant automatic recall operating instructions Please according to as follows the operation charge valve 1、Press“start+stop” at the same time on the PCB 5 ses； liquid valve 2、When the digital tube shows C1 alternately gleam with gas valve low-pressure pressure，please close liquid valve；When the digital tube shows C2，please close gas valve；The system automatically shuts down after the 5 ses, the digital tube shows C3，Please cut the power.

  • Page 70: Dip Switch Setting

    12. Dip switch setting Outdoor PCB photo...
  • Page 71 Selection switch and the display In the following table, 1 is ON, 0 is OFF. Dip switch defi nition: BM1 is usually set by the personnel on site; BM2 is usually used in the factory. BM1 introduction Begin to search indoor Indoor searching BM1_1 after startup...

  • Page 72: Digital Tube Display

    13. Digital tube display SW01 SW02 Digital tube display Display outdoor failure code Display operation mode Target frequency of inverter compressor Current frequency of inverter compressor Indoor quantity Running indoor quantity Td discharging temperature Ta ambient temperature Ts suction temperature Te defrosting temperature 1 Toil oil temperature Pd pressure...

  • Page 73: Failure Code

    14. Failure code Digital tube Indication indication on wired Failure code Failure description Remarks on master controller defi nition unit (hex) Defrosting AD value is below 11(open circuit) or 20-0 temp.sensor over 1012(short circuit) for 60seconds, in TE1 failure cooling mode, if the sensor is abnormal, Resumable the unit does not deal with it, besides, Defrosting...
  • Page 74 Indication indication on wired Failure code Failure description Remarks on master controller defi nition unit (hex) AD value is below 11(open circuit) or Low pressure over 1012(short circuit) for 30seconds, sensor Ps Resumable in defrosting and within 3 minutes after failure defrosting, no alarm High pressure...
  • Page 75 Indication indication on wired Failure code Failure description Remarks on master controller defi nition unit (hex) In normal operation, compression ratio Compression <1.8 for continuous 5 minutes stop and Once 39-2 39-2 ratio too low alarm.2 minutes and 1 seconds later, confi...
  • Page 76 Indication indication on wired Failure code Failure description Remarks on master controller defi nition unit (hex) IPM modular over current, in short circuit, IPM modular over heat, voltage too low of control protection (F0) circuit. In the course of compressor startup or Compressor out running, the unit can not detect the rotor of control...
  • Page 77 When there is no failure, if the starting condition can not be met, digital tube on master unit will display stand-by code: Standby state of capacity over- When capacity is over 130% or low- match er than 50%, the system is standby. Outdoor ambient temperature too 555.1 Ta>27℃...

  • Page 78: Trouble Shooting

    15. Trouble shooting [20~24] temperature sensor failure...
  • Page 79 [26-0,26-1,26-2] communication circuit between indoor and outdoor...
  • Page 80 reconnect if the EEPROM is fixed well...
  • Page 83 if the teminal of reconnect LEVb is fixed well in cooling mode,when the replace or adjustment the indoor unit off if the EEV indoor unit EEV can't completely close...
  • Page 86 [43] discharging temp. sensor Td too low protection if the sensor characteristic replace the sensor is correct if the teminal of reconnect sensor is fixed well in cooling mode,when the replace or adjustment the indoor unit off if the EEV indoor unit EEV can't completely close...
  • Page 87 check the motor and re-connect PCB connection is well orced the fan in low speed,measur if it has replace the motor alternating voltage between FG and GND replace the outdoor PCB...
  • Page 88 [75] no pressure drop between high pressure and low one...
  • Page 89 if there are the other failure recently,such as 112,113,114...
  • Page 90 check the wires among U,V,W of compressor replace the wires are normal replace the compressor compressor load too much,check the reason...
  • Page 91 check the temperature sensor replace the sensor characteristic is correct clean the radiator check the radiator is blocked fix it well and daub gel again,clean the radiator improve the running environment of outdoor unit...
  • Page 94 [118] compressor startup failure compressor load too much check the reason...

  • Page 97: Appendix

    APPENDIX 1. Sensor characteristic Temp. sensor characteristic Sensor type Characteristic Indoor coil/ outdoor Ta 、Te1、 Te2 、Ts Indoor ambient temp.sensor Outdoor Td 、Toil R(50℃)=17KΩ Outdoor Tfin B(25℃/50℃)=4170K...
  • Page 99 (4) R(50℃)=17KΩ B(25℃/50℃)=4170K Temp. sensor Temp（℃） KΩ Temp（℃） KΩ 176.38 13.93 135.07 11.46 104.30 9.49 81.17 7.89 63.65 6.59 50.27 5.53 39.97 4.66 31.99 3.94 25.76 3.34 20.87 2.85 17.00 2.44...
  • Page 100 2. Enthalpy-humidity chart / .+...
  • Page 101 3. Saturated R410A themodynamic characteristic p’ p" p’ p" s’ s" h" t’ t" ¡ kg/m kg/m kJ/kgK kJ/kgK kJ/kg kJ/kg kJ/KgK kJ/KgK...
  • Page 102 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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