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Related Manuals for Haier MVAH018MV2AA
Summary of Contents for Haier MVAH018MV2AA
- Page 1 Constant Air Volume Duct Service Manual SYJS-07-2017 REV.A Edition: 2017-07...
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Page 2: Table Of Contents
CONTENTS 1. Feature................................1 2. Specification ..............................2 3. Dimension ................................. 4 4. Piping diagram..............................7 5. Wiring diagram ..............................8 6. Electric characteristics ..........................10 7. Airflow and static pressure curves ....................... 11 8. Sound pressure level ............................. 14 9. -
Page 3: Feature
1. Feature • DC constant air flow fan motor, getting higher efficiency and 0-200Pa auto adjusted ESP • Capacity from 2.2kW to 16kW, suitable for variable demands. • Built-in high lift drain pump • Pre-set filter and fresh air inlet to improve indoor air quality. • Only 280mm thickness makes it possible for installation in limited spaces... -
Page 4: Specification
2. Specification MVAH018MV2AA MVAH024MV2AA MVAH030MV2AA Rated Cooling Capacity Btu/hr 18,000 24,000 30,000 Rated Heating Capacity Btu/hr 20,000 27,000 34,000 Voltage,Cycle,Phase V/Hz/- 208/230-60-1 208/230-60-1 208/230-60-1 Fan Speed Stages 5+Auto 5+Auto 5+Auto Airflow (Turbo/High/Med/Low/ 618/529/482/435/347 765/647/588/529/424 941/824/735/647/529 Quiet) CFM Motor Speed (Turbo/High/Med/ 1178/1038/968/891/748 1015/864/786/720/626 1190/1077/990/864/720 Low/Quiet) RPM Max. External Static Pressure 0.80(200) 0.80(200) 0.80(200) in.W.G (Pa) Indoor Sound Level dB (Turbo/ 45/40/38/36/32 41/38/35/33/30... - Page 5 MVAH036MV2AA MVAH042MV2AA MVAH048MV2AA Rated Cooling Capacity Btu/hr 36,000 42,000 48,000 Rated Heating Capacity Btu/hr 40,000 47,000 54,000 Voltage ,Cycle,Phase V/Hz/- 208/230-60-1 208/230-60-1 208/230-60-1 Fan Speed Stages 5+Auto 5+Auto 5+Auto Airflow (Turbo/High/Med/Low/ 1078/988/888/824/720 1200/1129/1047/953/860 1330/1235/1129/1047/960 Quiet) CFM Motor Speed (Turbo/High/Med/ 1390/1193/943/823/721 1400/1200/950/830/728 1448/1250/1110/958/825 Low/Quiet) RPM Max. External Static Pressure 0.80(200) 0.80(200) 0.80(200) in.W.G (Pa) Indoor Sound Level dB (Turbo/ 46/43/41/39/35 47/44/42/40/36 49/46/44/41/37 High/Med/Low/Quiet) Dimension: Height in (mm) 11 (280) 11 (280)
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Page 6: Dimension
3. Dimension Unit:inch(mm) MVAH018MV2AA dimension 11/16( ) 11/16( ) 6 11/16 （ ） Air outlet ） (111) (111) - Page 7 MVAH024/302MV2AA dimension Unit:inch(mm) Name 29 1/8（740) 2 9/16 7 5/16 Gas pipe (65) (185) Liquid pipe Drainage hole Drainage hole of drain pan Wires connection hole Hanging bolt Fresh air inlet Air return Fresh air outlet 11/16(18) 29 1/2(750) 11/16(18) 44-Ø3/16(4) 4-Ø3/16(4) 1 1/8(28)
- Page 8 MVAH024/302MV2AA dimension Unit:inch(mm) 50 3/8(1280) 2 1/2(64) 2 1/2(64) Name Gas pipe Liquid pipe Drain hole Drain hole of drain pan Wiring connector hole Hanging bolt Air return Fresh air inlet Fresh air out let 55 1/4(1404) 11/16(18) 53 7/8(1368) 11/16(18) 4-Φ3/16(4) 4-Φ3/16(4)
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Page 9: Piping Diagram
4. Piping diagram Gas pipe Liquid pipe Filter Filter Indoor heat exchanger... -
Page 10: Wiring Diagram
5. Wiring diagram MVAH018/024/030MV2AA DC Slim Duct Wiring Diagram Up/Down Swing1 Left/Right Swing2 Liquid Pipe Ambient Gas Pipe Sensor Sensor Sensor CN11 CN35 CN18 G CN19 B CN11-1 DCFAN Up/Down CN21 LED5 CN31 R LED7 CN6 WH CN10 R SW01 SW03 LED3 Room Card... - Page 11 MVAH036/042/048MV2AA DC Slim Duct Wiring Diagra m CN39 CN12 CN10 CN10 SW01 CN37 Power Supply DC FAN Room CN16 Main Control Card Board MOTOR FUSE Board LED3 LED4 T8A/250VAC Gas Pipe Sensor TC 1 LED5 CN18 Liquid Pipe Sensor CN19 SW03 Float Switch CN21...
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Page 12: Electric Characteristics
6. Electric characteristics Power Units Indoor fan motor Power input (W) supply Model Phase Voltage Volt. range MCA MFA Output (W) FLA Cooling Heating MVAH018MV2AA 50/60 198~242 1.93 6.16 1.54 MVAH024MV2AA 50/60 198~242 2.60 8.32 2.08 252.3 252.3 MVAH030MV2AA 50/60 198~242 2.68 8.56 2.14 259.3 259.3... -
Page 13: Airflow And Static Pressure Curves
7. Airflow and static pressure curves MVAH018MV2AA air flow and static pressure curves Super high High Super low 0.00 0.08 0.16 0.24 0.32 0.40 0.48 0.56 0.64 0.72 0.80 0.88 Static pressure (IWC) MVAH024MV2AA air flow and static pressure curves... - Page 14 MVAH030MV2AA air flow and static pressure curves Super high High Super low 0.00 0.08 0.16 0.24 0.32 0.40 0.48 0.56 0.64 0.72 0.80 0.88 Static pressure (IWC) MVAH036MV2AA air flow and static pressure curves 1100 1050 1000 Super high High Super low 0.00 0.20...
- Page 15 MVAH042MV2AA air flow and static pressure curves 1200 1150 1100 1050 1000 Super high High Super low 0.00 0.20 0.40 0.60 0.80 Static pressure (IWC) MVAH048MV2AA air flow and static pressure curves 1300 1250 1200 1150 1100 Super high 1050 1000 High Super low...
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Page 16: Sound Pressure Level
8. Sound pressure level (1) Testing illustrate: Air outlet duct Air return duct Unit Sound level meter Outlet side Testing position just below the central of the unit (2) Testing condition: a. Unit running in the standard condition b. Test in the semi-anechoic chamber c. Noise level varies from the actual factors such as room structure, etc. MVAH018MV2AA MVAH024MV2AA NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 NC-20 NC-20... -
Page 17: Installation
9. Installation 9.1 Parts and functions Indoor unit air duct soft connection air outlet port air inlet port 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”. However, the matters listed in “ Attention” are also likely cause the severe accidents. In general, both of them are the important items related to the security, which should be strictly abided by. • After the installation, perform test run to make sure everything is in normal conditions, and then operate and maintain the air conditioner in accordance with the User Manual. The User Manual should be delivered to the user for proper keeping. - Page 18 WARNING • Please ask the special maintenance station for installation and repair. Water leakage, electric shocks or fire accidents might be caused from improper installation if you conduct the installation by your own. • The installation should be conducted properly according to this manual. Water leakage, electric shocks or fire accidents might be caused from improper installation. Please make sure to install the air conditioner on the place where can bear the weight of the air conditioner. • The air conditioner can’t be installed on the grids such as the non-special metal burglar-proof net. The place with insufficient support strength might cause the dropdown of the machine, which may lead to personal injuries. • The installation should be ensured against typhoons and earthquakes, etc. The installation unconformable to the requirements will lead to accidents due to the turnover of the machine. • Specific cables should be used for reliable connections of the wirings. Please fix the terminal connections reliably to avoid the outside force applied on the cables from being impressed on the cables. Improper connections and fixings might lead to such accidents as heating or fire accidents. • Correct shapes of wirings should be kept while the embossed shape is not allowed. The wirings should be reliably connected to avoid the cover and the plate of the electrical cabinet lipping the wiring. Improper installation might cause such accidents as heating or fire accidents. • While placing or reinstalling the air conditioner, except the specific refrigerant (R410A), don’t let the air go into the refrigeration cycle system. The air in the refrigeration cycle system might lead to the cracking or personal injuries due to abnormal high pressure of the refrigeration cycle system. • During installation, please use the accompanied spare parts or specific parts. If not, water leakage, electric shocks, fire accidents or refrigerant leakage might be caused. • Don’t drain the water from the drainpipe to the waterspout where may exist harmful gases such as sulfureted gas to avoid the harmful gases entering into the room. • During installation, if refrigerant leakage occurs, ventilation measures should be taken, for the refrigerant gas might generate harmful gases upon contacting the flame. • After installation, check if any refrigerant leakage exists. If the refrigerant gas leaks in the room, such things as air blowing heaters and stoves, etc. may generate harmful gases. • 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.
- Page 19 Attention It is not allowed to put any heating 3-minute protection apparatus under the indoor units, for the To protect the unit, compressor can be heat may cause distortion of the units. actuated with at least 3-minute delay after stopping. Pay attention to the aeration condition Close the window to avoid outdoor air...
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Page 20: Maintenance
9.3 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 • Don’t use gasoline, benzene, diluents, polishing powder or liquid insecticide to clean them. • Do not clean them with hot water of above 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. • The Wind Deflector can be dismantled to clean (as below). Cleaning Wind Deflector: • Do not wipe the wind deflector with water forcibly to avoid falling off. Cleaning Air Cleaner: Attention • Don’t rinse the air cleaner with hot water of above 50°C to avoid fading and distorting. • Don’t put the air cleaner on the fire to dry to avoid catching fire. • Wipe dust with water or dust collector. (B) Clean it with soft bush in mild detergent (A) Wipe dust with dust collector. if there is too much dust on it Throw off the water and airing it in the cool dry condition. Maintenance before and after Operating Season Before Operating Season: 1. Please make the following checkup. If abnormal condition occurs, consult the after-service personnel. • There is no blockage in inlet port and outlet port of outdoor and indoor units. • The ground line and the wiring are in the proper state 2. After cleaning, the air cleaner must be mounted. 3. Switch on to the power. -
Page 21: Fault Checkup
9.4 Fault checkup Please check the following when consigning repair service: Symptoms Reasons Water flow sound can be heard when starting operation, during operation or immediately after stopping operation. When it starts • Water flow sound to work for 2-3 minutes, the sound may become louder, which is the flowing sound of refrigerant or the draining sound of condensed water. During operation, the air conditioner may make the cracking • Cracking sound sound, which is caused from the temperature changes or the slight dilation of heat exchanger. The terrible smell, caused from walls, carpet, furniture, clothing, • Terrible smell in outlet air cigarette and cosmetics, attaches on the conditioner. When switching it on again after power failure, turn on the manual • Flashing operating indicator power switch and the operating indicator flashes. It displays the awaiting indication as it fails to perform refrigerating operation while other indoor units are in heating operation. When • Awaiting indication the operator set it to the refrigerating or heating mode and the operation is opposite to the setting, it displays the awaiting indication. To prevent oil and refrigerant from blocking the shutdown indoor units, refrigerant flows in the short time and make the sounds • Sound in shutdown indoor unit or of refrigerant flowing. Otherwise, when other indoor units performs white steam or cold air heating operation, white steam may occur; during refrigerating operation, cold air may appear. When the conditioner is powered on, the sound is made due • ... -
Page 22: Installation Procedures
9.5 Installation procedures 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. Before installation [before finishing the installation, don’t throw away the attached parts required for the installation] • Determine the route to move the unit to the installation site; • ... - Page 23 3. Preparation before Installation (1) Location relation between inspection hole on the ceiling and the unit and the hoisting studs (unit: in). Size Model (in) (in) (in) (in) AD009-018MV2AA 18 5/8 29 1/2 27 3/8 AD024-030MV2AA 38 7/8 18 5/8 29 1/2 27 3/8 AD036-048MV2AA 55 1/4 20 7/8 53 7/8 31 3/8 (2) If necessary, make a hole for installation and inspection on the ceiling. (used for the situation with a ceiling) • For the size of the inspection hole on the ceiling, please refer to the above drawing. • Before installation, finish all the preparations for all piping connected to indoor units (refrigerant, water drainage) and wiring (connection line of the line control, connection line between indoor units and outdoor unit) so that they can be connected with indoor units right after installation. • For the inspection hole, the ceiling might be reinforced to keep the evenness of the ceiling and avoid the vibration of the ceiling. For details, please consult the construction contractor. Notch grapping Plug (3) Install the hoisting studs (3/8''bolts) notch plug In order to support the weight of the unit, use barb bolts in the situation with a ceiling. In the situation with...
- Page 24 Static Pressure Range unit: Pa Static Pressure Range 0~200 4. Drainpipes 20 /8 MVAH009-030MV2AA Unit:in 18 5/8 drainp ipe 16 1/4 gasp ipe liquid pipe 18 3/8 MVAH036-048MV2AA 11 /8 11 /8 18 3/8 18 3/8 (a) Keep a gradient (1/50-1/100) of the drainpipes and avoid lobbing or curving. • Proper Piping • Improper Piping bolt hanging 39 3/8~78 6/8in avoidl obing avoid curving airo utletp ort...
- Page 25 Wash port Drainage hose Wash port Sealing washer [for insulation] Joint (purchased at local shop) (accessory) Main unit hard PVC tube (purchased at locals hop) Drainage hose Thread clip Binding Sealing washer [for insulation](accessory) (accessory) Sealing washer [for insulation](accessory) Ensure the biggesth eightd ifference (about 37 /8in) (d) When the laid drain piping is used for multiple equipments, the public piping should be lower about 3 7/8in than the...
- Page 26 Before completing the electrical connection, a gibbose connector shall be installed on the drainpipe as to provide it with a water inlet port. Then, if any leakage exists in the piping, check it to make the water flow of the drainpipe smooth. 5. Installation of Air Return & Air Exhaust Pipes For the choice and installation of air return port, air return pipe, air exhaust port and exhaust pipe, please consult service personnel of Haier company. Calculate the design chart and exterior static pressure, and select the exhaust pipe with appropriate length and shapes. Main unit of air conditioner Ceiling Air return surface pipe (purchased Special exhaust...
- Page 27 7.Connection of return air duct (setting back air return opening when leaving factory) Remarks: In installation, you can select the lower air return or back air return by adjusting the location of air inlet frame. Air return from bottom will influence the unit noise, so we suggest use rear return installation. Size Model (in) (in) MVAH009~018MV2AA 7 7/8 MVAH024~030MV2AA 29 1/8 7 7/8 MVAH036~048MV2AA 50 3/8 9 2/8 Back air return opening Below air return opening 8.Concatenation means of exchanging flesh air (1) Cut away the nummular component of (2) Install the nummular air pipe (air pipe can be ...
- Page 28 9.Install outlet flange Install outlet flange according to the needs, the outlet flange is standard component, bolts are laid in accessories box. ceiling Note: You can select not to connect with the flange. Instead of it, you can use the round plastic air outlet (purchased by user) 10. Examples for Bad Installation • The unit is not equipped with the air return pipe and the inner side of the suspending ceiling is used as the blast pipe, causing the humidity increasing due to irregular air mass, strong wind or sunlight from the outside world. • There might be condensate dropping down at the outer side of the blast pipe. The humidity is high, even if the inner side of the suspended ceiling isn’t used as a blast pipe in new concrete buildings. At this time, the whole body should use the thermo wool for heat preservation (the thermo wool can be packed with a steel wire). • It is operated under the conditions beyond the limits, leading to the overload of the compressor. • Affected by the capacity of the exhaust fan, and the strong wind and wind direction in the outer flue, when the blowing quantity of the air conditioner exceeds the limits, the drained water of the heat exchanger will overflow, causing water leakage. Exhaust fan Example of bad installation The static pressure range of each gradeas 11. Static Pressure GradeSetting follows: For MVAH036~048MV2AA units, after installation need to Grade Static pressure range preliminary estimates external static pressure, according to the ...
- Page 29 Tubing Materials & Specifications Model MVAH009~018MV2AA MVAH024~048MV2AA Gas pipe Ф1/2 Ф5/8 Tubing Size Liquid pipe Ф1/4 Ф3/8 Tubing Material Phosphor deoxybronze seamless pipe (TP ) for air conditioner Refrigerant Filling Amount Add the refrigerant according to the installation instruction of outdoor unit. The addition of R410A refrigerant must be performed with a measure gage to ensure the specified amount or compressor failure can be caused by filling too much or little refrigerant. Connecting Procedures of Refrigerant Tubing Proceed the flare tube connecting operation to connect all the refrigerant tubes. • Dual wrenches must be used in the connection of indoor unit tubing. • Mounting torque refers to the right table Outer Diameter of Tubing Mounting Torque Ф1/4 11.8~13.7N.m Ф3/8 32.7~39.9N.m Wrench Ф1/2 49.0~53.9N.m Ф5/8 78.4~98.0N.m Ф3/4 97.2~118.6N.m Connecting Cutting and Enlarging Connecting circular terminals: Cutting or enlarging pipes should be ...
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Page 30: Electrical Wiring
9.6 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. Connecting and fastening should be performed reliably to avoid the external force of cables from transmitting to the terminals. Improper connection or fastness may lead to burning or fire accidents. • There must be the ground connection according to the criterion. Unreliable grounding may cause electrical shocks. Do not connect the grounding line to the gas pipe, water pipe, lightening rod and telephone line. ATTENTION • Only copper wire can be used. Breaker for electric leakage should be provided, or electric shock may occur. • The wiring of the mains line is of Y type. The power plug L should be connected to the live wire and plug N connected to null wire while should be connected to the ground wire. For the type with auxiliary electrically heating function, the live wire and the null wire should not be misconnected, or the surface of electrical heating body will be electrified. If the power line is damaged, replace it by the professional personnel of the manufacturer or service center. • The power line of indoor units should be arranged according to the installation instruction of indoor units. • The electrical wiring should be out of contact with the high-temperature sections of tubing as to avoid melting the insulating layer of cables, which may cause accidents. • After connected to the terminal tier, the tubing should be curved into be a U-type elbow and fastened with the pressing clip. • Controller wiring and refrigerant tubing can be arranged and fixed together. • The machine can’t be powered on before electrical operation. Maintenance should be done while the power is shut down. • Seal the thread hole with heat insulating materials to avoid condensation. • ... - Page 31 Signal Wiring Drawing Wired controller Wired controller Wired Wired Wired Wired controller controller controller controller Wired Wired controller controller Outdoor units are of parallel connection via three lines with polarity. The master unit, central control and all indoor units are of parallel connection via two lines without polarity. There are three connecting ways between wired controller and indoor units: A. One line control controls multiple units, i.e. 8 indoor units, as shown in the above figure, (1-5 indoor units).The indoor unit 5 is the line-controlled main unit and others are the ine-controlled sub units. The wired control and the main unit (directly connected to the indoor unit of line control) are connected via three lines with polarity. Other indoor units and the main unit are connected via three lines with polarity.SW01 on the main unit of line control is set to 0 while SW01 on other sub units of line control are set to 1, 2, 3 and so onin turn. B. One line control controls one indoor unit, as shown in the above figure(indoor unit 6-19). The indoor unitand the line control are connected via three lines with polarity. C. Two wired controller control one indoor unit, as shown in the figure (indoor unit 20). Either of the wired controller can be set to be the master wired controller while the other is set to be the auxiliary wired controller. The master wired controller and indoor units, and the master and auxiliary wired controller are connected via three lines with polarity. When the indoor units are controlled by the remote control, switch over the modes by Switching Mode of Line-Controlled Main Unit/ Line-Controlled Sub Units/ Remote-Controlled Types. The signal terminals needn’t to be equipped with wires and connected to the line control.
- Page 32 Indoor power supply wiring & signal wiring between indoor and outdoor & signal wiring between indoor. Rated current of residual Cross Sectional Area of Items Rated Signal Line Cross Circuit Breaker(A) Total Length Current of Section Ground Fault Outdoor- Indoor- Current of in.(m) Overflow AWG(mm Interruptor(mA) indoor AWG indoorAWG Indoor Unite(A) Breaker(A) Response time(S) <7 14(2.5) 65.6(20) 10 A, 30mA, 0.1S or below ≥7 and <11 12(4) 65.6(20) 16 A, 30mA, 0.1S or below 2 cores×AWG18- ≥11 and <16 10(6) 82(25) 20 A, 30mA, 0.1S or below AWG14(0.75-2.0 mm shielded line ≥16 and <22 8(8) 98.4(30)
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Page 33: Pcb Photo
10. PCB Photo PCB code:0151800244 (used for the unit: MVAH018MV2AA, MVAH024MV2AA, MVAH030MV2AA) LED5 LED7 SW01 SW03 LED3 LED4 LED6 LED1 LED2... - Page 34 PCB code:0151800227A (used for the unit: MVAH036MV2AA, MVAH042MV2AA, MVAH048MV2AA) SW03 SW01 Power supply board code:0151800311A (used for the unit: MVAH036MV2AA, MVAH042MV2AA, MVAH048MV2AA)
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Page 35: Dip Switch Setting
2# (wire controlled slave unit) SW01_3 indoor unit 3# (wire controlled slave unit) SW01_4 … … … … …… 15# (wire controlled slave unit) Capability of indoor unit SW01_5 18000BTU (MVAH018MV2AA) SW01_6 Capability of SW01_7 indoor unit 24000BTU (MVAH024MV2AA) SW01_8 30000BTU (MVAH030MV2AA) (B) Definition and description of SW03 Communication Central control address address ON OFF OFF OFF OFF OFF OFF OFF... -
Page 36: 0151800227A Pcb
11.2 0151800227A PCB 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) (A) Definition and description of SW01 Address of wire controlled indoor unit (group address) 0# (wire controlled master unit) (default) SW01_1 1# (wire controlled slave unit) Address of SW01_2 wire controlled 2# (wire controlled slave unit) SW01_3 indoor unit ... -
Page 37: Indoor Unit Control
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. > 2°C indoor operation is identical with the cooling operation, and send the cooling mode to outdoor; Room temp. - set temp. ≤ 2°C indoor will send the dry signal to outdoor, and indoor fan motor will run at low speed compulsorily when compressor is running; when room temp. <16°C indoor stops and sends stop signal to outdoor. In dry operation, the auto mode of indoor fan motor is identical with the cooling mode; EEV control mode is identical with the cooling operation. 12.4 Fan operation Indoor fan motor will run at the speed set on the wired controller and sends stop signal to outdoor. 12.5 Abnormal operation When the requested mode collides with the outdoor mode, the entering earlier will be in prior. After indoor receives the startup command from wired controller (remote controller), firstly judge the outdoor current mode. If it is normal mode, the indoor will run as the request of wired controller; if it is abnormal mode, the command can not be executed, and indoor keeps stop; wired controller displays standby mode (if in remote control type, the buzzer will sound twice and the remote controller can not receive the signal). Until the outdoor stops or the outdoor mode is accordant with the requested mode of wired controller (remote controller), the outdoor will work. COOL (including AUTO COOL), DRY, RECOVERY are regarded as the same mode; HEAT, RECOVERY are as abnormal mode. 12.6 Fan speed control of indoor fan motor a. Adjustment by hand Set high/ mid/ low fan speed as the request. - Page 38 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. is no more than 22°C; (3) Room temp. is lower over 2°C than the set temp.; (4) Compressor has run for 5 seconds; Either below condition is met, the electric heater will stop: (1) Indoor fan motor or compressor not runs; (2) Indoor air inlet temp. is over 23°C; (3) Indoor air inlet temp. is higher over -1°C than the set temp.; (4) Unit stops or quit the heating mode. 12.11 Filter cleaning Check and memorize the running time of indoor fan motor, once arriving the requested time (set by SW07-6), indoor will send filter cleaning signal to wired controller; when indoor receives the filter reset signal from wired controller, if the time exceeds the requested time, the filter will reset. 12.12 Compulsory defrosting After indoor receives the compulsory defrosting signal from wired controller, it will send compulsory defrosting signal to outdoor continuously for 10 times. In the sending period, indoor will execute the normal defrost. 12.13 Trial operation Set the mode as cooling (heating), press ON/OFF for 5 seconds to enter compulsory cooling (heating). In compulsory cooling, display "LL" and COOL will flash;...
- Page 39 [05] EEPROM failure If the chip is fixed well Reconnect Replace it If the chip is damaged Check if PCB is faulty, if yes, replace it [09] Indoor address repeated If wiring between P and Modify the wiring Q is normal If communication wire is Modify the communication connected with multi wire outdoors If indoor QTY connected with outdoor is normal Check outdoor connecting board,if faulty, replace it...
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Page 40: Failure Code
13. Failure code Failure code PCB LED5(Indoor at wired Units)/ Receiver Timer Fault Descriptions controller Lamp(Remote Controller) Indoor ambient temp. sensor TA failure Indoor coil pipe temp. sensor TC1 failure Indoor coil pipe temp. sensor TC2 failure Indoor EEPROM failure Communication between indoor and outdoor failure Communication between indoor and wired controller failure Indoor float switch failure Indoor address repeated failure Indoor unit 50Hz zero-crossing failure DC motor model is wrong DC motor failure Communication between DC motor and PCB The 4-way valve of 3-pipe valve box reversing failure Outdoor failure code... -
Page 41: Troubleshooting
14. Troubleshooting Indoor failure diagnose [08] Indoor drainage system failure/float switch circuit on indoor PCB failure Reconnect If CN13 is fixed well If float switch works If CN4 is Modify the wiring with AC220V and the circuit voltage Check indoor PCB and replace it if necessary If water pump works Check water pump If water Modify the wiring pump is electrified and the circuit Replace water pump [1/2/3/4/15] Indoor sensor failure If sensor terminal is fixed well Reconnect If sensor resistor Replace sensor /characteristic is proper Check if PCB is faulty, if yes, replace it... - Page 42 [06] Communication circuit between indoor and outdoor If wiring between P and Modify the communication wire Q is wrong or broken down If the port of CN15 on Modify the port indoor PCB is normal If the port of CN19 on outdoor connecting board is normal Electrify the outdoor If outdoor power source is normal Clear the failure code If power supply is failure Check and eliminate noise If there is noise Check outdoor PCB, if faulty, replace it...
- Page 43 [07] Communication abnormal between indoor and wired controller If wiring of terminal A, B, C of Modify the wiring wired controller is proper If the broken wire or port is Modify the connection fixed improperly If in group operation Set one indoor If there is indoor unit unit as No. 0 set as No. 0 Set only one indoor If there are multi indoors set as No. 0 unit as No. 0 Set one indoor If there is indoor unit unit as No. 0 set as No. 0 If indoor unit is running If LED2 on indoor PCB is ON, Check indoor PCB, if which indicate the serial signal faulty, replace it sent to wired controller If LED1 on indoor PCB is ON, which indicate the serial signal sent to wired controller Check wired controller PCB, if faulty, replace it...
- Page 44 [12] No 50Hz zero passage signal Check if the Replace transformer is well transformer Check if the wiring of the Reconnect wired controller connect well Replace PCB...
- Page 45 [14] DC motor failure Check if the wiring of motor Reconnect is fixed well Replace motor If the motor is fault Replace the PCB...
- Page 46 [18] The 4-way valve of 3-pipe valve box reversing failure Adjust it correctly by after-sales If the 4-way valve of 3-pipe personnel on site. valve box is internal leakage Check if the TC1 and TC2 of indoor Adjust it correctly by after-sales unit are normal, if the resistance is personnel on site. right? If the connect well? Adjust it correctly by after-sales If the 4-way valve of outdoor personnel on site. unit is internal leakage Replace the driver module, if it is normal Replace the driver module If the pressure difference between high and low pressure less than If exceeds the running range of the ...
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Page 47: Capacity
17036 12214 17357 12536 18321 12214 18643 12214 18964 12536 19607 12214 20250 11893 17036 12214 17357 12536 18000 12214 18321 12214 18643 12536 19286 12214 20250 11893 MVAH018MV2AA 90.5 16714 12214 17036 12214 17679 11893 18321 12214 18643 12536 19286 12214 19929 11893 ... - Page 48 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 Model 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 35357 27321 36000 27964 37286 27321 38250 27643 38893 28607 40179 27643 41786 27000 72.5 35036 27000 35679 27643 36964 27000 37929 27321 38571 28286 39857 27643 41464 27000 34714 ...
- Page 49 13333 13016 13016 15238 15238 14921 13651 17143 16825 15556 13651 19048 18730 15556 13651 36.5 20000 19683 15556 13651 MVAH018MV2AA 42.8 20317 20000 15556 13651 43.7 20952 20000 15556 13651 22540 20000 15556 13651 54.5 23810 20000 15556 13651 ...
- Page 50 Indoor Temp. (°F DB) Outdoor Temp. Model 68.0 77.0 80.6 °F WB SHC (Btu/h) SHC (Btu/h) SHC (Btu/h) SHC (Btu/h) 26880 26240 26240 25920 30720 30080 29760 27520 34240 33920 31360 27520 38080 37760 31360 27520 36.5 40000 39680 31360 27520 MVAH036MV2AA 42.8 40000 40000 31360 27520 43.7 42240 40000 ...
- Page 51 Haier Commercial Air Condition Web: Http://www.haier.com Haier reserves the right to make change without any notice.