N High wall Service Manual SYJS-07-2017 REV.
CONTENTS 1. Feature....................................................................................................................................1 2. Specification............................................................................................................................2 3. Dimension...............................................................................................................................5 4. Piping diagram...........................................................
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2. Specification MVAW007MV2AA MVAW009MV2AA Rated Cooling Capacity Btu/hr 7,000 9,000 Rated Heating Capacity Btu/hr 8,600 10,600 208/230-60-1 208/230-60-1 5+Auto 5+Auto 324/282/247 353/312/276 1200/1000/850/700/600 1200/1000/850/700/600 Indoor Sound Level dB (High/Med/Low) 35/31/29 36/31/29 Dimension: Height in (mm) 11 (280) 11 (280) Dimension: Width in (mm) 33 11/16(855) 33 11/16(855) Dimension: Depth in (mm) 7 7/8(200) 7 7/8(200) Weight (Ship/Net)- lbs (kg) 28/23.1（12.7/10.
MVAW012MV2AA MVAW018MV2AA Rated Cooling Capacity Btu/hr 12,000 18,000 Rated Heating Capacity Btu/hr 13,600 20,000 208/230-60-1 208/230-60-1 5+Auto 5+Auto 371/329/294 541/471/424 1300/1200/1000/700/600 1200/1000/800/700/600 Indoor Sound Level dB (High/Med/Low) 37/33/29 40/39/35 Dimension: Height in (mm) 11 (280) 13 1/4(336) Dimension: Width in (mm) 33 11/16(855) 43 7/8(1115) Dimension: Depth in (mm) 7 7/8(200) 9 9/16(243) Weight (Ship/Net)- lbs (kg) 28/23.1（12.7/10.5） 44.3/36.
MVAW024MV2AA MVAW030MV2AA Rated Cooling Capacity Btu/hr 24,000 30,000 Rated Heating Capacity Btu/hr 27,000 34,000 208/230-60-1 208/230-60-1 5+Auto 5+Auto 594/541/471 941/882/824 1280/1200/1000/700/600 1400/1250/900/700/600 44/40/36 49/44/41 Dimension: Height in (mm) 13 1/4(336) 14 1/4(365) Dimension: Width in (mm) 43 7/8(1115) 51 13/16(1316) Dimension: Depth in (mm) 9 9/16(243) 10 5/8(270) Weight (Ship/Net)- lbs (kg) 44.3/36.4（20.1/16.5） 57.3/47.4（26.0/21.
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5. Wiring diagram PCB code: 0151800244B *Dashed parts are optional Left/Right Swing Up/Down Swing CN46-1 1 2 3 4 5 6 7 8 9 10 WH 1 2 3 4 5 6 7 8 9 10 SW01 ON PCB ON LED3 LED4 CN38 Y 1 2 6 6 CN11-1 CN11 WH CN17 WH YJ TC1 TC2 SW411 2 3 2 3 2 3 2 3 6 5 5 4 3 2 1 3 2 1 7 6 5 4 3 2 1 7 6 5 4 3 2 1 DC fan CN8WH CN1911 G TC5 TAI TC3 CN18 1 2 CN38 1 2 CN17 1 2 Y 1 2 WH BL Liquid Pipe Sensor 1 2 1 2 CN20 G PM2.
6. Electric characteristics Units Power supply Indoor fan motor Power input (W) Phase FQY Voltage Volt. range MCA MFA Output (W) FLA MVAW007MV2AA 1 50/60 220 198~242 0.18 0.56 30 0.14 43 43 MVAW009MV2AA 1 50/60 220 198~242 0.18 0.56 30 0.14 43 43 MVAW012MV2AA 1 50/60 220 198~242 0.18 0.56 30 0.14 43 43 MVAW018MV2AA 1 50/60 220 198~242 0.24 0.76 40 0.19 57 57 MVAW024MV2AA 1 50/60 220 198~242 0.24 0.76 40 0.
7. Air velocity and temperature distribution a. Cooling / Air velocity distribution Blowy angle: 25 2.4m 1.5m/s 1.0m/s 0.5m/s 0m 5.5m b. Cooling / Temperature distribution Blowy angle: 25 2.4m 22°C 25°C 27°C 0m 5.
c. Heating / Air velocity distribution Blowy angle: 65 2.4m 1.5m/s 1.0m/s 0.5m/s 0m 5.5m d. Cooling / Temperature distribution Blowy angle: 65 2.4m 27°C 25°C 22°C 0m 5.
8. Sound pressure level 1) Testing illustrate: 0.8m 1m 2) Testing condition: a: Unit running in the normal condition b: Test in the semi-anechoic chamber c: Noise level varies from the actual factors such as room structure, etc.
9. Installation 9.1 Parts and functions Actual inlet grille and display board may vary from the one shown in the manual according to the product purchased. Display board Remote signal receiver (A beeping sound is generated when a signal from remote controller isreceived.) Power indicator (Lights up when unit starts.) Timer mode indicator (Lights up whenTimer operation is selected.) Operation mode indicator (lights up when the compressor is on.
9.2 Safety • If the air conditioner is transferred to a new user, this manual shall be transferred to the user, together with the conditioner. • Before installation, be sure to read Safety Considerations in this manual for proper installation. • The safety considerations stated below is divided into " Warning" and " Attention". The matters on severe accidents caused from wrong installation, which is likely to lead to death or serious injury, are listed in " Warning".
• Don't install the air conditioner at the places where the flammable gases may leak. In case the gas leakage occurs around the machine, such accidents as fire disasters may be caused. • The drainpipe should be properly mounted according to this manual as to ensure the smooth drainage. In addition, heat preservation should be taken to avoid condensation. Improper drainpipe mounting might cause water leakage, which will get the articles at home wet.
Items with this warning sign concerning the product's safety and the personal security must be performed strictly. Items with this forbidding sign refer to absolutely forbidden behaviors. If not, they may cause machine damage or endanger operator's personal safety. Clean the filter regularly. Cooling or heating performance will be degraded if the filter is blocked, resulting in large power consumption, failure, and water dripping at freezing. Don't touch the outlet while the flap is moving.
Notices during Operation Attention • It is not allowed to put any heating apparatus • 3-minute protection under the indoor units, for the heat may cause • To protect the unit, compressor can be actuated distortion of the units. with at least 3-minute delay after stopping. • Pay attention to the aeration • Close the window to avoid condition to avoid anoxic outdoor air getting in. symptom. Curtains or window shutters can be put down to avoid the sunshine.
9.3 Emergency Running & Test operation Emergency Running & Test operation: • Emergency running will help air conditioner operate automatically if your remote control is missing or out of work. • Test operation is recommended when room temperature is below 60.8*(16*) but not in normal condition. Emergency Running It is recommended to use only when the remote control is missing or damaged.
9.4 Maintenance * Only when the air cleaner is switched off and disconnected to the power supply can it be cleaned, or electric shock and injury may appear. Cleaning the air outlet port and the shell: Attention • Do not use gasoline, benzene, diluents, polishing powder or liquid insecticide to clean them. • Do not clean them with hot water of over 122°F(50°C) to avoid fading or distorting. • Wipe them with soft dry cloth. • Water or neutral dry cleanser is recommended if the dust cannot be removed.
Clean the machine (Cleaning ways are approximately same, taking MVAW007MV2AA indoor machine as example). Turn off the air conditioner before cleaning. Do not touch the machine if the hands are wet. Neither hot water nor solvent should be used in cleaning. Replacement of Air Purifying Filter 1.Open the lnlet Grille Prop up the inlet grille by using a small device named grille-support which located in the right side of the indoor unit. 2.
9.5 Fault Checkup All these are not problems Please check the following when consigning repair service: Symptoms Reasons • Water flow sound Water flow sound can be heard during starting operation, during operation or immediately after stopping operation. When it starts for 2-3 minutes, the sound may become louder, which is the flowing sound of refrigerant or the draining sound of condensate water.
9.6 Installation Procedures This manual cannot completely illustrate all the properties of the products you bought. Please contact the local Haier distribution center if you have any question or request. Please use the standard tool according to the installation requirements. The standard attached accessories of the units of this series refer to the packing; prepare other accessories according to the requirements of the local installation point of our company. 1. Choose the suitable installation location.
3.Installation Drawing of Indoor Units: (1) Positioning Wall Pad & Locating Wall Holes Fix the pad according to the installation location and the pipe layout of indoor unit (please refer to the installation drawing). Installation should be done under the crossbeam or on the flat wall near the pillar. First fix the pad with a steel nail on the wall. Drop a thread with a bolt through the pad center or use a level meter to find the level.
(4) Lead the connection tubing(liquid pipe and gas pipe) through the hole into the wall, or connect piping and wiring of indoor unit(check the number of wiring terminals of indoor and outdoor units and connect terminals with the same number and color), and then put the connection tubing and the connecting line through from the inside wall for the connection with outdoor unit. Fitting of the Mounting Plate and Positioning of the wall Hole When the mounting plate is first fixed 1.
2. Remove 2 gaskets under the cross-flow fan. 3. Clean the burr on the surface of fracture to avoid the power wire from being scratched after removing the virtual opening of the outgoing line slot on the case by hands in indoor power-on process. When the mounting plate is fixed side bar and lintel • Fix to side bar and lintel a mounting bar, Which is separately sold, and then fasten the plate to the fixed mounting bar.
Cutting and Enlarging Connecting Cutting or enlarging pipes should be proceeded by installation personnel according to the operating criterion if the tube is too long or flare opening is broken. 1. Connecting circular terminals: The connecting method of circular terminal is shown in the Fig. Take off the screw, connect it to the terminal tier after heading it through the ring at the end of the lead and then tighten it. 2.
9.7 Electrical Wiring WARNING • Electrical construction should be made with specific mains circuit by the qualified personnel according to the installation instruction. Electric shock and fire may be caused if the capacity of power supply is not sufficient. • During arranging the wiring layout, specified cables should be used as the mains line, which accords with the local regulations on wiring.
Signal Wiring Drawing The combination of multiple indoor units can be controlled by remote controller. Note: MVAW*MV2AA models are set to remote- controlled type.
Recommended: One wired controller controls more than one indoor unit (limited in high walls) Not recommended: One wired controller controls more than one indoor unit (ordinary indoors) High wall wired controller wiring instruction: 1. One wired controller controls one high wall unit (one to one), connect the wires of wired controller to CN22 terminal on PCB directly. 2.
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11. Dip switch setting In the following table,1 represents ON and 0 represents OFF. Definition principles of code switches: SW01 is used to set wire controlled address of and set capabilities of master; SW03 is used to set indoor unit address (combine original communication address and address of centralized controller).
(B)Definition and description of SW03 SW03_1 Address setting mode Code-set indoor unit SW03_2 address and ~ centralized SW03_8 controller address (Note 2) 0 Automatic address setting or wired controller address setting (default) 1 Code-set address 2 3 4 5 6 7 8 0 0 0 0 0 0 0 0 0 ... 0 1 1 1 ... 1 0 0 ... 1 0 0 0 ... 1 0 0 ... 1 0 0 0 ... 1 0 0 ... 1 0 0 0 ... 1 0 0 ... 1 0 0 0 ... 1 0 1 ... 1 0 0 1 ... 1 1 0 ... 1 0 1 0 ... 1 Address of indoor unit 0# (Default) 1# 2# ...
12. Indoor unit control 12.1 Cooling operation Set temp. in cooling: Ts=set temp. wired controller; After startup, indoor unit will send the request to outdoor according to the temp. difference between the set temp. and the room temp. 12.2 Heating operation Set temp. in heating: Ts=set temp. wired controller + TA correcting value. After startup, indoor unit will send the request to outdoor according to the temp. difference between the set temp. and the room temp. 12.3 Dry operation Room temp. - set temp.
12.8 Anti-freeze protection In cooling mode, execute the anti-freeze protection due to the measured indoor coil temp. to avoid the indoor heat exchanger causing frost or ice. 12.9 Swing motor control Indoor will control swing motor ON/OFF due to the swing signal from wired controller. 12.10 Auxiliary electric heater control In heating mode, if the below conditions can be met, the electric heater will work: (1) Indoor fan motor and compressor are running; (2) Air inlet temp.
13. Failure code Indoor unit failure code Failure code on wired controller Indoor panel display failure code Indoor PCB LED5 flashes times 01 E01 1 Indoor ambient temp. sensor TA failure 02 E02 2 Indoor gas pipe temp. sensor TC1 failure 03 E03 3 Indoor liquid pipe temp.
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[05] EEPROM failure No If the chip is fixed well Reconnect Yes Yes If the chip is damaged Replace it No Check if PCB is faulty, if yes, replace it [09] Indoor address repeated No If wiring between P and Q is normal Modify the wiring Yes Yes If communication wire is connected with multi outdoors wire No If indoor QTY connected with outdoor is normal Modify the communication No Yes Check outdoor connecting board,if faulty, replace it 36
[06] Communication circuit between indoor and outdoor If wiring between P and Q is wrong or broken down Yes Modify the communication wire No If the port of CN15 on indoor PCB is normal No Modify the port Yes If the port of CN19 on outdoor connecting board is normal No Yes Yes If outdoor power source is normal Electrify the outdoor No Yes If power supply is failure Clear the failure code No Yes If there is noise No Check outdoor PCB, if faulty, replace it 37 Check and eliminate noise
[07] Communication abnormal between indoor and wired controller If wiring of terminal A, B, C of wired controller is proper No Modify the wiring Yes If the broken wire or port is fixed improperly Yes Modify the connection No If in group operation No If there is indoor unit set as No. 0 If there are multi indoors set as No. 0 If there is indoor unit set as No. 0 No No No Yes Set one indoor unit as No. 0 Set only one indoor unit as No. 0 Set one indoor unit as No.
[12] No 50Hz zero passage signal No Check if the transformer is well Replace transformer Yes Check if the wiring of the wired controller connect well Yes Replace PCB 39 No Reconnect
[14] DC motor failure Check if the wiring of motor is fixed well No Reconnect Yes Yes If the motor is fault No Replace the PCB 40 Replace motor
[18] The 4-way valve of 3-pipe valve box reversing failure If the 4-way valve of 3-pipe valve box is internal leakage Yes Adjust it correctly by after-sales personnel on site. No Check if the TC1 and TC2 of indoor unit are normal, if the resistance is right? If the connect well? No Adjust it correctly by after-sales personnel on site. Yes If the 4-way valve of outdoor unit is internal leakage No Adjust it correctly by after-sales personnel on site.
15. Capacity Cooling Model MVAW007MV2AA MVAW009MV2AA MVAW012MV2AA CA: total capacity (Btu/h) SHC: sensible heat capacity (Btu/h) Indoor Temp. Outdoor 70.7°FDB 73.4°F DB 77°F DB 80.6°F DB 82.4°F DB 86°F DB 89.6°F DB Temp. 59°F WB 60.8°F WB 64.4°F WB 66.2°F WB 68°F WB 71.6°F WB 75.2°F WB °F DB CA SHC CA SHC CA SHC CA SHC CA SHC CA SHC CA SHC 68 7600 5182 7600 5182 7945 5182 7945 5182 8291 5527 8636 5182 8982 5182 72.
Model MVAW018MV2AA Indoor Temp. Outdoor 70.7°FDB 73.4°F DB 77°F DB 80.6°F DB 82.4°F DB 86°F DB 89.6°F DB Temp. 59°F WB 60.8°F WB 64.4°F WB 66.2°F WB 68°F WB 71.6°F WB 75.2°F WB °F DB CA SHC CA SHC CA SHC CA SHC CA SHC CA SHC CA SHC 68 17875 12350 17875 12675 18850 12025 19175 12350 19500 12675 20475 12025 21125 11700 72.5 17550 12350 17875 12350 18850 12025 19175 12025 19500 12350 20150 12025 20800 11700 77 17550 12025 17550 12350 18525 12025 18850 12025 19175 12350 20150 12025 20800 11700 81.
Heating Model MVAW007MV2AA MVAW009MV2AA MVAW012MV2AA MVAW018MV2AA SHC: sensible heat capacity Outdoor Temp. °F WB 5 14 23 32 36.5 42.8 43.7 50 54.5 59.9 5 14 23 32 36.5 42.8 43.7 50 54.5 59.9 5 14 23 32 36.5 42.8 43.7 50 54.5 59.9 5 14 23 32 36.5 42.8 43.7 50 54.5 59.9 Indoor Temp. (°F DB) 68.0 77.
Model MVAW024MV2AA MVAW030MV2AA Outdoor Temp. °F WB 5 14 23 32 36.5 42.8 43.7 50 54.5 59.9 5 14 23 32 36.5 42.8 43.7 50 54.5 59.9 Indoor Temp. (°F DB) 68.0 77.
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