Heat Controller A-MMC36FA-1 manual

Wall Mounted Multi-Zone Split System Air Conditioning/Heat Pump Indoor Unit: B-MMC09FA-1 B-MMH09FA-1 B-MMC12FA-1 B-MMH12FA-1 Outdoor Unit : A-MMC18FA-1 A-MMH18FA-1 A-MMC24FA-1 A-MMH24FA-1 A-MMC36FA-1 A-MMH36FA-1 Befor e servicing the unit, r ead the “safety pr ecautions” in this manual. Only for authorized service personnel. HEA T CONTR OLLER, [...]

- 2 - Wall Mounted Multi-Zone Split System Air Conditioner W all Mounted Multi-Zone Split System Air Conditioner Service Manual T ABLE OF CONTENTS Combination table ....................................................................................................................................... 3 Safety Precautions ............................[...]

- 3 - Service Manual Notes : 1.Cooling Capacity is based on : indoor temp. 26.7°C(80.1°F)DB, 19.4°C(66.9°F)WB; outdoor temp. 35°C(95°F)DB, 23.9°C(75°F)WB 2.Heating Capacity is based on : indoor temp. 21.1°C(70°F)DB, 15.6°C(60.1°F)WB; outdoor temp. 8.3°C(46.9°F)DB, 6.1°C(43°F)WB This symbol alerts you to the risk of electric shock. T[...]

- 4 - Wall Mounted Multi-Zone Split System Air Conditioner Saf ety Precautions Safety Precautions T o pre v ent injur y to the user or other people and proper ty damage, the f ollowing instructions must be f ollow ed. ■ Incorrect operation due to ignoring instruction will cause har m or damage. The seriousness is classified by the f ollowing indi[...]

- 5 - Service Manual Saf ety Precautions Do not install, remove, or re- install the unit by y ourself (customer). • There is risk of fire, electric shock, explosion, or injury. Be cautious when unpacking and installing the product. • Sharp edges could cause injury. Be especially careful of the case edges and the fins on the con- denser and evap[...]

- 6 - Wall Mounted Multi-Zone Split System Air Conditioner Saf ety Precautions Do not open the inlet grill of the product during operation. (Do not touch the elec- trostatic filter , if the unit is so equipped.) • There is risk of physical injury, electric shock, or product failure. When the product is soaked (flooded or submerged), contact an A [...]

- 7 - Service Manual Saf ety Precautions When the product is not being used f or a long time , disconnect the power b y turning off the breaker . • There is risk of product damage or failure, or unintend- ed operation. T ake care to ensure that nobody could step on or fall onto the outdoor unit. • This could result in personal injury and produc[...]

- 8 - Wall Mounted Multi-Zone Split System Air Conditioner Saf ety Precautions Do not expose the skin direct- ly to cool air f or long periods of time. (Don't sit in the draft.) • This could harm to your health. Do not use the product f or special purposes, such as preserving foods, w orks of art, etc. It is a consumer air conditioner , not [...]

- 9 - Service Manual Saf ety Precautions Do not rechar ge or disassemble the batteries. Do not dispose of batteries in a fire. • They may burn or explode. If the liquid from the batteries gets onto y our skin or clothes, wash it well with c lean water . Do not use the remote if the batteries have leaked. • The chemicals in batteries could cause[...]

- 10 - Wall Mounted Multi-Zone Split System Air Conditioner Seaside applications and installation Seaside applications and installation 1. Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced. 2. Do not install the product where it could be exposed to sea wind (salty wind) directly. It [...]

- 11 - Service Manual Dimensions Dimensions Indoor Unit Split T ype Indoor Installation plate D H W W mm(in) 840(33) 895(35.2) H mm(in) 270(10.6) 282(11.1) D mm(in) 153(6) 165(6.5) Model Dimension Split T ype 9 kBtu/h 12 kBtu/h[...]

- 12 - Wall Mounted Multi-Zone Split System Air Conditioner Outdoor Unit W D L1 L2 L4 L3 H L7 L5 L6 W mm(in) 870(34.3) H mm(in) 655(25.8) D mm(in) 320(12.6) L1 mm(in) 370(14.6) L2 mm(in) 25(1.0) L3 mm(in) 775(30.5) L4 mm(in) 25(1.0) L5 mm(in) 546(21.5) L6 mm(in) 160(6.3) L7 mm(in) 160(6.3) UE 18kBtu/h MODEL DIM Dimensions[...]

- 13 - Service Manual W D L1 L2 L4 L3 H L7 L5 L6 W mm(in) 870(34.3) H mm(in) 808(31.8) D mm(in) 320(12.6) L1 mm(in) 370(14.6) L2 mm(in) 25(1.0) L3 mm(in) 775(30.5) L4 mm(in) 25(1.0) L5 mm(in) 546(21.5) L6 mm(in) 160(6.3) L7 mm(in) 160(6.3) UE 1 24kBtu/h MODEL DIM Dimensions[...]

- 14 - Wall Mounted Multi-Zone Split System Air Conditioner Dimensions L6 L7 L8 L9 L4 H L5 W D L1 L3 L2 L10 L11 L11 L11 L11 L11 Gas side 3-way valve Liquid side 2-way valve UE2 36kBtu/h MODEL DIM W mm(in) 870(34.3) H mm(in) 1038(40.7) D mm(in) 320(12.6) L1 mm(in) 360(14.2) L2 mm(in) 340(13.4) L3 mm(in) 25(1.0) L4 mm(in) 1035(40.8) L5 mm(in) 25(1.0)[...]

- 15 - Service Manual Product Specifications Pr oduct Specifications Indoor Unit Nominal Cooling Capacity kcal/h(W) Btu/h Nominal Heating Capacity kcal/h(W) Btu/h Air Circulation CFM(CMM) Setting temperature range(cool/heat) °C Fan motor Output W Model Input V Running Current A Fan Type No. Used / Diameter EA/inch(mm) Noise Level (Sound Press,1m) [...]

- 16 - Wall Mounted Multi-Zone Split System Air Conditioner Model Cooling Capacity Btu/hr W kcal/hr Heating Capacity Btu/hr W kcal/hr Input Cooling W Heating W Running Current(208/230V) Cooling A Heating A Power Supply Ø,V,Hz Max. Number of Connectable Indoor Units Compressor Type (Constant) Model Motor Type Quantity Ea Motor Input W Oil Charge cc[...]

- 17 - Service Manual Model Cooling Capacity Btu/hr W kcal/hr Heating Capacity Btu/hr W kcal/hr Input Cooling W Heating W Running Current(208/230V) Cooling A Heating A Power Supply Ø,V,Hz Max. Number of Connectable Indoor Units Compressor Type (Constant) Model Motor Type Quantity Ea Motor Input W Oil Charge cc Oil Type Capacitor µF/Vac O.L.P Type[...]

- 18 - Wall Mounted Multi-Zone Split System Air Conditioner Product Specifications Model Cooling Capacity Btu/hr W kcal/hr Heating Capacity Btu/hr W kcal/hr Input Cooling W Heating W Running Current(208/230V) Cooling A Heating A Power Supply Ø,V,Hz Max. Number of Connectable Indoor Units Compressor Type (Constant) Model Motor Type Quantity Ea Moto[...]

- 19 - Service Manual Installation Installation Type "A" screw and plastic anchor Type "B" screw Remote Control Holder Installation plate Figure Figure Name Screw driver Electric Drill Measuring Tape, Knife Hole Core Drill Adjustable Wrench Torque wrench Ohmmeter Hexagonal wrench Ammeter Gas Leak Detector Thermometer, Level Flar[...]

- 20 - Wall Mounted Multi-Zone Split System Air Conditioner Installation Selecting the best location Indoor unit 1. Do not hav e any heat or steam near the unit. 2. Select a place where there are no obstacles in front of the unit. 3. Make sure that condensation dr ainage can be conv e- niently routed aw a y . 4. Do not install near a doorwa y . 5. [...]

- 21 - Service Manual Installation Piping length and elev ation CA UTION: Capacity is based on standard length and maxim um allowance length is on the basis of reliability . Multi Piping T ype 18 kBtu 30 m (100 ft) 15 m (50 ft) 3 m (10 ft) 7.5 m (25 ft) 7.5 m (25 ft) 24 kBtu 30 m (100 ft) 15 m (50 ft) 3 m (10 ft) 7.5 m (25 ft) 7.5 m (25 ft) 36 kBtu[...]

- 22 - Wall Mounted Multi-Zone Split System Air Conditioner Installation The wall you select should be strong and solid enough to prevent vibration 1. Mount the installation plate on the wall with type "A" screws. If mounting the unit on a concrete wall, use anchor bolts. • Mount the installation plate horizontally by aligning the cente[...]

- 23 - Service Manual Flaring Work and Connection of Piping Flaring w ork The main cause for gas leakage is due to defects in flaring work. Carry out correct flaring work using the following procedures . Cut the pipes 1. Use the copper pipe purchased locally. 2. Measure the distance between the indoor and the outdoor unit. 3. Cut the pipes a little[...]

- 24 - Wall Mounted Multi-Zone Split System Air Conditioner Flaring Work and Connection of Piping Check 1. Compare the flare work like the figure on the right. 2. If a flared section is defective, cut it off and repeat the flar- ing process again. Indoor 1. Prepare the indoor unit's piping and drain hose for installation through the wall. 2. R[...]

- 25 - Service Manual Flaring Work and Connection of Piping 4. Indoor unit installation Hook the indoor unit onto the upper portion of the installa- tion plate.(Engage the two hooks of the rear top of the indoor unit with the upper edge of the installation plate.) Ensure that the hooks are properly seated on the installa- tion plate by moving the i[...]

- 26 - Wall Mounted Multi-Zone Split System Air Conditioner Flaring Work and Connection of Piping 1. Route the indoor tubing and the drain hose to the required piping hole position. 2. Insert the piping, drain hose, and the connecting cable into the piping hole. 3. Insert the connecting cable into the indoor unit. • Don't connect the cable t[...]

- 27 - Service Manual Wrap the insulation material around the connecting por- tion. 1. Overlap the connection pipe insulation and the indoor unit pipe heat insulation material. Bind them together with vinyl tape so that there is no gap. 2. Wrap the area which accommodates the rear piping hous- ing section with vinyl tape. 3. Bundle the piping and d[...]

- 28 - Wall Mounted Multi-Zone Split System Air Conditioner Flaring Work and Connection of Piping Installation Information. For left piping. Follow the instruction below. Good case • Press on the upper side of clamp and unfold the tubing to slowly downward. Bad case • Bending the pipe from right to left may cause damage to the tubing.[...]

- 29 - Service Manual Flaring Work and Connection of Piping Remove the battery cover from the remote con- troller. • Slide the cover according to the arrow direction. Insert the two batteries.(AAA, 1.5V) • Be sure that the (+) and (-) directions are correct. • Be sure that both batteries are new. Re-attach the cover. • Slide it back into po[...]

- 30 - Wall Mounted Multi-Zone Split System Air Conditioner Flaring Work and Connection of Piping Outdoor Align the center of the piping and sufficiently tighten the flare nut by hand. Finally, tighten the flare nut with torque wrench until the wrench clicks. • When tightening the flare nut with torque wrench, ensure the direction for tightening [...]

- 31 - Service Manual Connect the cable to the indoor unit by connecting the wires to the terminals on the control board individually according to the outdoor unit connection. (Ensure that the color of the wires of the outdoor unit and the terminal No. are the same as those of the indoor unit.) The ground wire should be longer than the common wires[...]

- 32 - Wall Mounted Multi-Zone Split System Air Conditioner Connecting the Cable betw een Indoor Unit and Outdoor Unit Connect the cable to the Outdoor unit. 1. Remove the control cover from the unit by loosening the screw. Connect the wires to the terminals on the control board individually as the following. 2. Secure the cable onto the control bo[...]

- 33 - Service Manual (1) Remove two-caps on the conduit panel. (for low voltage line) (2) Pull out connection cable through conduit. (3) After conduit to the panel, fix nut to the opposite side of panel. (4) Pass the connection cable through the hole. (5) Properly connect the cable on the terminal block. (6) Fix the connection cable with cord clam[...]

- 34 - Wall Mounted Multi-Zone Split System Air Conditioner Connecting the Cable betw een Indoor Unit and Outdoor Unit Connect the cable to the indoor unit CA UTION: Pro vide a cir cuit breaker between power sour ce and the unit as shown below . Air Conditioner Circuit Breaker Use a circuit breaker or time dela y fuse. Main power source Model P ow [...]

- 35 - Service Manual Chec king the drainage T o check the draina ge . 1. Pour a glass of water on the evaporator. 2. Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit. Drain piping 1. The drain hose should point downward for easy drain flow. 2. See below for examples of incorrect drain[...]

- 36 - Wall Mounted Multi-Zone Split System Air Conditioner Checking the Dr ainage, Insulating the Pipe and Special Piping Applications Insulating the Pipe and Special Piping Applications Insulate the piping by wrapping the con- necting portion of the indoor unit with insulation material and secure it with two la yers of vin yl tape. • If you wan[...]

- 37 - Service Manual Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. 1. Pressure in the system rises. 2. Operating current rises. 3. Cooling(or heating) efficiency drops. 4. Moisture in the refrigerant circuit may freeze and block capillary tubing. 5. Water may lead to corrosion of parts in the ref[...]

- 38 - Wall Mounted Multi-Zone Split System Air Conditioner Air Purging and Ev acuation 1. Connect the charge hose end described in the preceding steps to the vacuum pump to evacuate the tubing and indoor unit. Confirm the "Lo" knob of the manifold valve is open. Then, run the vacuum pump. The operation time for evacuation varies with tub[...]

- 39 - Service Manual ■ Each outdoor unit is factory charged (see rating plate) for the evaporator as well as a 7.5m(25ft) line set for each indoor line. Any time the total line set is used either shorter or longer then the nominal line set length the refrigerant charge has to be adjusted. ■ Whether the line set is made shorter or longer you mu[...]

- 40 - Wall Mounted Multi-Zone Split System Air Conditioner T est Running 1. Check that all copper piping and wiring has been proper- ly connected. 2. Check that the gas and liquid side service valves are fully open. 1) Prepare remote controller Remove the battery cover by pulling it according to the arrow direction. Insert new batteries making sur[...]

- 41 - Service Manual 1. MAIN UNIT FUNCTION • DISPLA Y Operation Indicator • On while in appliance operation, off while in appliance pause • Flashing if unit is disconnected or has experienced a short in the thermistor (3 seconds off/0.5 sec on). Sleep Timer Indicator • On while in sleep time mode, off when sleep timer mode is canceled or a[...]

- 42 - Wall Mounted Multi-Zone Split System Air Conditioner Operation operates (except in sleep mode, the airflow will be at medium speed). • While compressor is off, the indoor fan is off when the indoor pipe temp is below 33°C(91.4 °F) , when above 35°C(95 °F) , it operates with the low airflow speed. • While in defrost mode, the indoor a[...]

- 43 - Service Manual 2) Fuzzy Operation for Dehumidification • According to the set point temperature selected by Fuzzy rule, when the intake air temp is 0.5°C(0.9 °F) or more below the set point temp, the compressor is turned off. When 0.5°C(0.9 °F) or more above the set point temp, the compressor is turned on. Compressor ON Temp ➲ Set po[...]

- 44 - Wall Mounted Multi-Zone Split System Air Conditioner Operation • If the appliance is paused at the time set by the timer, the pause continues. ■ Off-Timer <=> On-Timer Operation • When the set time is reached after the on/off time is input by the remote control, the on/off-timer operation is carried out according to the set time.[...]

- 45 - Service Manual ■ Forced Operation • To operate the appliance by force (in case the remote control is lost), the forced operation selection switch is on the main unit of the appliance and operates it in standard conditions. • When the power is supplied while the slide switch is in the forced operation position, or the Auto Restart (or t[...]

- 46 - Wall Mounted Multi-Zone Split System Air Conditioner Operation "Wall Mounted Type is standard" * Functions is dependent on model type. Function of Indoor Unit On/Off : Lights up during the system operation. Sleep Mode : Lights up during Sleep Mode Auto operation. Timer : Lights up during Timer operation. Defrost Mode Outdoor unit o[...]

- 47 - Service Manual Function of Outdoor Unit Outdoor Unit Operating Step LEV Control Outdoor Fan Control • Compressor step varies considering conditions such as room temperature, operating room number, temperature gap between room temperature and set point temperature and so on. • The linear expansion valve is pulse is modulated to keep const[...]

- 48 - Wall Mounted Multi-Zone Split System Air Conditioner Operation Remote Contr ol Operation ON OFF CANCEL AUT O CLEAN SET 1 3 5 4 9 10 12 14 16 7 2 8 13 11 6 Cooling Operation Auto Operation or Auto Changeover Healthy Dehumidification Operation Flip-up door (opened) Heating Operation Signal transmitter • Cooling Model( ), Heat Pump Model( ) 1[...]

- 49 - Service Manual Disassembly Disassembl y Indoor Unit Split T ype Indoor Unit Disconnect the unit from power supply before mak- ing any checks. Be sure the power switch is set to “OFF”. To remove the Grille from the Chassis. • Set the up-and-down air discharge louver to open position (horizontally) by finger pressure. • Remove the secu[...]

- 50 - Wall Mounted Multi-Zone Split System Air Conditioner Disassembly 2. T o remove the Control Bo x. • Remove securing screws. • Pull the control box out from the chassis carefully. 3. T o remove the Dischar ge Grille . • Unhook the discharge grille and pull the discharge grille out from the chassis carefully. 4. T o remove the Evaporator [...]

- 51 - Service Manual • Unhook the tab on the right inside of the chassis at the same time, slightly pull the evaporator toward you until the tab is clear of the slot. 5. T o remove the Motor Cover • Remove 2 securing screws. • Pull the motor cover out from the chassis carefully. 6. T o remove the Cross-Flo w F an • Loosen the screw securin[...]

- 52 - Wall Mounted Multi-Zone Split System Air Conditioner Disassembly Schematic Dia gram Electr onic Contr ol Device 1. Indoor Unit 1) Split T ype[...]

- 53 - Service Manual 2. Outdoor Unit P07 SW01F OR2H,OR7H,OR10H:91K,OR3H-4H,OR8H-9H,OR11H-12H:15K(ETC:20K) R03T 1 1 DC 5V 56K R04T 1K 1 2 7036P IC01A CN-JIG 3 4 3 4 2 2 JIG_RX JIG_TX DC 5V 10K R01T 1K R02T C01H-C04H : 103 P21 21 JIG_RX 26 OSC01B CST-8.00MGW JIG_TX + 3 C02A 10 R03A,100 50V 25V 0.01 C01A R02A,4.7K R01A,1K Xin Vss Xout R01B,1M 25 24 P[...]

- 54 - Wall Mounted Multi-Zone Split System Air Conditioner Schematic Diagram 23.2K 8.06K 8.06K 23.2K 23.2K 8.06K 1% 1% 51.1K 102 100V C25M 1% 9.1k R27M 100uf C24M + 2 5 4 6 100uF 25V C26M R28M 13K 1% 1 5 + R29M,2K,1% 4 22 51.1K 10K 1 2.94K 6 7 4.7K PWM(C) 35.7K 4.3K R26M 10.2K 3 2 1 21.5K 6.04K KRA101M Q07M DC 5V 7 3K 5.23K 39.2K 13K 20 20 9 8 R04[...]

- 55 - Service Manual 1. Indoor Unit Wiring Diagram 2. Outdoor Unit 1)A-MMC18F A-1 2)A-MMH18F A-1 Schematic Diagram[...]

- 56 - Wall Mounted Multi-Zone Split System Air Conditioner Schematic Diagram 3) A-MMC24F A-1 4) A-MMH24F A-1 5) A-MMC36F A-1 6) A-MMH36F A-1[...]

- 57 - Service Manual Schematic Diagram 1. Indoor Unit MAIN P .C.B. ASSEMBL Y 1) Split T ype Component Locations • T OP VIEW • BO TT OM VIEW PCB :6870A90409B ASSY :6871A20771 6871A20782[...]

- 58 - Wall Mounted Multi-Zone Split System Air Conditioner Schematic Diagram 2. Display ASSEMBL Y 1) Split T ype (6871A20680)[...]

- 59 - Service Manual Schematic Diagram 3. Outdoor Unit 1) Component side[...]

- 60 - Wall Mounted Multi-Zone Split System Air Conditioner Schematic Diagram 2) Solder side[...]

- 61 - Service Manual T roubleshooting Guide T r oubleshooting Guide Refrigeration Cycle Dia gram Refrigerant Flow Cooling Heating Th1: Discharge thermistor Th2: Discharge thermistor Th3: Outdoor temperature thermistor Th4: Defrost thermistor Field Piping Gas Field Piping Liquid Room A EEV-B EEV-A Heat Exchanger Header OUTDOOR UNIT Room B Ø9.52 Ro[...]

- 62 - Wall Mounted Multi-Zone Split System Air Conditioner T roubleshooting Guide Field Piping Gas Field Piping Liquid Refrigerant Flow Th1: Discharge thermistor Th2: Discharge thermistor Th3: Outdoor temperature thermistor Room A Cooling EEV-B EEV-A Heat Exchanger Header OUTDOOR UNIT Room B Ø 9.52 Room A Room B Ø 6.35 Ø 6.35 Ø 9.52 Th2 High p[...]

- 63 - Service Manual T roubleshooting Guide Field Piping Gas Field Piping Liquid Refrigerant Flow Th1: Discharge thermistor Th2: Discharge thermistor Th3: Outdoor temperature thermistor Room A Cooling EEV-B EEV-A Heat Exchanger Header OUTDOOR UNIT Room B Ø 9.52 Room A Room B Ø 6.35 Ø 6.35 Ø 6.35 Ø 9.52 Room C Ø 9.52 Th2 High pressure S/W Th3[...]

- 64 - Wall Mounted Multi-Zone Split System Air Conditioner T roubleshooting Guide ■ Error Indicator • The self-diagnosis function of the air conditioner is used to identify any troubles that may exist. • Refer to the table below to determine the error code associated with the LED signals given by the indoor air con- ditioner's display. [...]

- 65 - Service Manual T roubleshooting Guide T r ouble anal ysis 1. Check temperature difference between intake and discharge air, as well as the operating current. All of the refrigerant many have leaked out. Restriction in the refrigeration cycle. Refrigerant leakage Clog of refrigeration cycle Defective compressor Excessive amount of refrigerant[...]

- 66 - Wall Mounted Multi-Zone Split System Air Conditioner T roubleshooting Guide Electr onic P ar ts T r oubleshooting Guide ❇ Refer to electronic contorol device drawing & schematic diagram. The Pr oduct doesn ’ t operate at all. Turn off the main power and wait until LED on outdoor PCB is off. Turn on the main power again. Is "Beep[...]

- 67 - Service Manual T roubleshooting Guide Turn on main power. While the compressor has been stopped, the compressor does not operate due to the designed 3 minute delay, which is a protective function anytime the compres- sor is stopped. When the compressor is stopped, the Indoor Fan is driven by a low speed. At this point the fan speed is not co[...]

- 68 - Wall Mounted Multi-Zone Split System Air Conditioner T roubleshooting Guide Turn on the main power. When in air circulation mode, compressor/outdoor fan is stopped. Turn off main power. Check the electrical wiring diagram of Outdoor side. Check the open or short of connecting wires between Indoor and Outdoor. Check that the sensor for Indoor[...]

- 69 - Service Manual T roubleshooting Guide When indoor F an does not operate . Check connection condition of the CN-MOTOR CON- NECTOR Does the voltage of terminal of CN-DC/DC CONNECTOR in Indoor unit that corresponds to the values in the table of page 70 Does the voltage of terminal of CN-DC/DC CONNECTOR in Outdoor unit corresponds to the values [...]

T roubleshooting Guide - 70 - Wall Mounted Multi-Zone Split System Air Conditioner V oltage of Connectors accor ding to Indoor F an Speed 1 2 3 4 1 3 4 1 2 3 4 INDOOR FAN MOTOR INDOOR PWB ASSY Connecting wires between Indoor and Outdoor Indoor Connecting Terminal Outdoor Connecting Terminal Input Power TAB-N CN-MOTOR CN-DC/DC RY-COMP-A 3 4 RY-COMP-[...]

- 71 - Service Manual T roubleshooting Guide When V ertical Louver does not operate . T r ouble 5 • Confirm that the Vertical Louver is normally geared with the shaft of Stepping Motor. • If the regular torque is detected when rotating the Vertical Louver with hands Normal • Check the connection condition of CN-UP/DOWN Connector • Check the[...]

- 72 - Wall Mounted Multi-Zone Split System Air Conditioner T roubleshooting Guide Err or Code ■ Trouble Shooting Error Description Cause of error Check point & Normal condition code 01 Indoor air sensor 02 Indoor inlet pipe sensor 06 Indoor outlet pipe sensor • Open / Short • Soldered poorly • Internal circuit error • Open / Short ?[...]

- 73 - Service Manual T roubleshooting Guide Error Description Cause of error Check point & Normal condition code 05 / 53 Communication (Indoor ➔ Outdoor) • Poor Communication • Power input AC 230V.(Outdoor, Indoor) • The connector for transmission is disconnected. • The connecting wires are misconnected. • The GND 1,2 is not connec[...]

- 74 - Wall Mounted Multi-Zone Split System Air Conditioner T roubleshooting Guide Error Description Cause of error Check point & Normal condition code 33 D-Pipe Temp. High • Discharge sensor temp. high • Check the discharge pipe sensor. • Check the install condition for over load. • Check for leakage of refrigerent. • Check is the Se[...]

- 75 - Service Manual T roubleshooting Guide Error Description Cause of error Check point & Normal condition code 44 Outdoor air sensor 45 Condensor pipe sensor 47 D-Pipe sensor • Open / Short • Soldered poorly • Internal circuit error • Open / Short • Soldered poorly • Internal circuit error • Open / Short • Soldered poorly •[...]

- 76 - Wall Mounted Multi-Zone Split System Air Conditioner 2-wa y , 3-wa y V alv e 2-wa y , 3-wa y V alve 2-way Valve (Liguid Side) 3-way Valve (Gas Side) Control Mechanism Shaft position Shaft position Service port Factory Setting Closed Closed Closed (with valve cap) (with valve cap) (with cap) Air purging Open Closed Open (Installation) (counte[...]

- 77 - Service Manual 2-wa y , 3-wa y V alv e • Be sure not to short the pressure switch S/W, otherwise if the low pressure switch S/W detects low pressure it will stop the compressor. (1) Pumping down • Procedure 1. Confirm that both the gas side and liquid side valves are set to the open position. - Remove the valve stem caps and confirm that[...]

- 78 - Wall Mounted Multi-Zone Split System Air Conditioner 2-wa y , 3-wa y V alv e (2) Ev acuation (All the refrigerant leaked) • Procedure 1. Confirm that both the liguid side valve and gas side valve are set to the opened position. 2. Connect the vaccum pump to the center hose of the manifold gauge. 3. Connect the service port of the gas side [...]

- 79 - Service Manual 2-wa y , 3-wa y V alv e (3) Gas Charging (After Evacuation) • Procedure 1. Connect the gauge to the charging cylinder. - Connect the charge hose, which you discon- nected from the vacuum pump, to the valve at the bottom of the cylinder. - If you are using a gas cylinder, also use a scale and reverse the cylinder so that the [...]

- 80 - Wall Mounted Multi-Zone Split System Air Conditioner 135301 152302B 152302A 342800 359011 131410 733010 135312 135311 147581 268711A 146811 147582 346810 135516 35211B 354210 249951 352150 268711B 268711C 267110 135500 152313 567480A 567480B Exploded View Exploded Vie w Indoor Unit Model : B-MMC09F A-1, B-MMH09F A-1, B-MMC12F A-1, B-MMH12F A[...]

- 81 - Service Manual Exploded View 435512 435301 349480 437211 430411 559010 447910 546810 349600 554030 137213B 137213A 435300 567480C 552112 552113A 548490 435511A 552203A 552203B 552203A 552203B 554160A 554160B 661400 A 552200 566000 H/P switch 552113B 552114 552201 661400B 649950 W0CZZB W0CZZA 268711F 561410 567480D Discharge 552116 435511B 26[...]

- 82 - Wall Mounted Multi-Zone Split System Air Conditioner Exploded View 552113B 552202 561410 Heat pump type Heat pump type Heat pump type 649950 268711F 268711H 435511 552203A 552203B 552203A 552203B 554160A 554160B Internal OLP Type Internal OLP Type 661400A 552200 552200 567480C Inlet air + pipe 567480D Discharge W0CZZA 349600 W0CZZB 554030 43[...]

- 83 - Service Manual Exploded View 546810 546810 349600 552113B 559010 559010 552116 Heat pump type 552203A 552203B 554160B Internal OLP type 554160A 567502 554030 447910 430410 435512 435301 349480 435301 349480 437211 137213A 137213B 435300 548490 552112 552113 552114 567480C Air inlet+Pipe W6640 567480D Discharge 649950 268711F 268711H W0CZZA W[...]

Specifications and performance data subject to change without notice. HEA T CONTROLLER, INC. 1900 WELL WOR TH A VENUE • JA CKSON, MICHIGAN 49203 THE QU ALITY LEADER IN CONDITIONING AIR P/N o .:3828A20390X 08/06/2008[...]