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.
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...
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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...
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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...
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(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...
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 "...
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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. •...
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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? •...
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(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.
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(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. •...
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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. •...
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Multi Outdoor Min300mm Inlet Outlet Min300mm...
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Case 2: stumbling block on the inlet and top side Single Outdoor Max300mm Max300mm Min360mm Min360mm Multi Outdoor...
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Not more than two sets Case 3:stumbling block on the outlet, both right and left side Single Outdoor Min360mm Min1000mm Min300mm Min150mm...
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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.
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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...
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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.
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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...
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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...
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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)
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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.
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• 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...
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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...
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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.
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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.
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.
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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...
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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...
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.
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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 * .
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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...
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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 <...
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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.
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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...
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...
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...
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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...
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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...
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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...
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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℃...
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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...
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[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...
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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...
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[75] no pressure drop between high pressure and low one...
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if there are the other failure recently,such as 112,113,114...
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check the wires among U,V,W of compressor replace the wires are normal replace the compressor compressor load too much,check the reason...
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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...
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[118] compressor startup failure compressor load too much check the reason...
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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.