Heat Controller B-MMC09FA-1 Service Manual
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Heat Controller B-MMC09FA-1 Service Manual

Heat Controller B-MMC09FA-1 Service Manual

Wall mounted multi-split system air conditioning/heat pump
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HEAT CONTROLLER, INC.
Multi-Split System
Air Conditioning/Heat Pump
Before servicing the unit, read the
"safety precautions" in this manual.
Only for authorized service personnel.

Wall Mounted

Indoor Unit:
Outdoor Unit : A-MMH18FA-1
B-MMC09FA-1
B-MMH09FA-1
B-MMC12FA-1
B-MMH12FA-1
A-MMC24FA-1
A-MMH24FA-1
A-MMC36FA-1
A-MMH36FA-1

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Summary of Contents for Heat Controller B-MMC09FA-1

  • Page 1: Wall Mounted

    HEAT CONTROLLER, INC. Wall Mounted Multi-Split System Air Conditioning/Heat Pump Indoor Unit: B-MMC09FA-1 B-MMH09FA-1 B-MMC12FA-1 B-MMH12FA-1 Outdoor Unit : A-MMH18FA-1 A-MMC24FA-1 A-MMH24FA-1 A-MMC36FA-1 A-MMH36FA-1 Before servicing the unit, read the “safety precautions” in this manual. Only for authorized service personnel.

  • Page 2: Table Of Contents

    Multi type Air Conditioner Service Manual TABLE OF CONTENTS Combination table............................3 Safety Precautions............................4 Installation guide at the seaside......................10 Dimensions..............................11 Indoor Unit..............................11 Outdoor Unit ............................12 Product Specifications ..........................15 Indoor Unit..............................15 Outdoor Unit ............................16 Installation ..............................19 Installation Parts.............................19 Installation Tools.............................19 Select the best location .........................20 Piping length and elevation ........................21 Fixing Installation Plate(Standard Type)....................22 Drill a hole in the wall ...........................22...

  • Page 3: Combination Table

    Combination table Combination table 18 kBtu( 2 rooms) Combination Unit-A Unit-B Total 1 UNIT 2 UNIT 24 kBtu( 2 rooms) Combination Unit-A Unit-B Total 1 UNIT 2 UNIT 36 kBtu (3 rooms) Combination Unit-A Unit-B Unit-C Total 1 UNIT 2 UNIT 3 UNIT Notes : 1.Cooling Capacity is based on : indoor temp.

  • Page 4: Safety Precautions

    Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. I Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. WARNING This symbol indicates the possibility of death or serious injury.
  • Page 5 Safety Precautions Do not install, remove, or re- Be cautious when unpacking For installation, always con- install the unit by yourself and installing the product. tact the dealer or an (customer). Authorized Service Center. • There is risk of fire, electric shock, •...
  • Page 6 Safety Precautions When flammable gas leaks, If strange sounds, or smoke Stop operation and close the turn off the gas and open a comes from product. Turn the window in storm or hurricane. window for ventilation before breaker off. If possible, remove the prod- turn the product on.

  • Page 7: Service Manual

    Safety Precautions When the product is not to be used for a long time, Take care to ensure that nobody could step on disconnect the power by turning off the breaker. or fall onto the outdoor unit. • There is risk of product damage or failure, or unintend- •...
  • Page 8 Safety Precautions I Operational Do not expose the skin direct- Do not use the product for Do not block the inlet or outlet ly to cool air for long periods special purposes, such as of air flow. of time. preserving foods, works of (Don't sit in the draft.) art, etc.
  • Page 9 Safety Precautions Use a firm stool or ladder when cleaning or Replace the all batteries in the remote control maintaining the product. with new ones of the same type. Do not mix old and new batteries or different types of bat- teries.

  • Page 10: Installation Guide At The Seaside

    Installation guide at the seaside Installation guide at the seaside 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 can result corrosion on the product.

  • Page 11: Dimensions

    Dimensions Dimensions Indoor Unit Split Type Indoor Installation plate Split Type Model Dimension 9 kBtu/h 12 kBtu/h mm(in) 840(33) 895(35.2) mm(in) 270(10.6) 282(11.1) mm(in) 153(6) 165(6.5) Service Manual 11...

  • Page 12: Outdoor Unit

    Dimensions Outdoor Unit MODEL 18kBtu/h mm(in) 870(34.3) mm(in) 655(25.8) mm(in) 320(12.6) mm(in) 370(14.6) mm(in) 25(1.0) mm(in) 775(30.5) mm(in) 25(1.0) mm(in) 546(21.5) mm(in) 160(6.3) mm(in) 160(6.3) 12 Multi type Air Conditioner...
  • Page 13 MODEL UE 1 24kBtu/h mm(in) 870(34.3) mm(in) 808(31.8) mm(in) 320(12.6) mm(in) 370(14.6) mm(in) 25(1.0) mm(in) 775(30.5) mm(in) 25(1.0) mm(in) 546(21.5) mm(in) 160(6.3) mm(in) 160(6.3) Service Manual 13...
  • Page 14 Dimensions Gas side 3-way valve Liquid side 2-way valve MODEL 36kBtu/h mm(in) 870(34.3) mm(in) 1038(40.7) mm(in) 320(12.6) mm(in) 360(14.2) mm(in) 340(13.4) mm(in) 25(1.0) mm(in) 1035(40.8) mm(in) 25(1.0) mm(in) 546(21.5) mm(in) 160(6.3) mm(in) 160(6.3) mm(in) 44(11.7) mm(in) 64.5(2.5) mm(in) 50(2.0) 14 Multi type Air Conditioner...

  • Page 15: Product Specifications

    Product Specifications Product Specifications Indoor Unit Indoor Unit Type Wall Mounted Model B-MMC09FA-1 B-MMH09FA-1 B-MMC12FA-1 B-MMH12FA-1 Nominal Cooling Capacity kcal/h(W) 2,267(2,637) 2,267(2,637) 3,023(3,516) 3,023(3,516) Btu/h 9,000 9,000 12,000 12,000 Nominal Heating Capacity kcal/h(W) 2,267(2,637) 3,023(3,516) Btu/h 9,000 12,000 Air Circulation...

  • Page 16: Outdoor Unit

    Product Specifications Outdoor Unit - Multiple piping models A-MMH18FA-1 Model Cooling Capacity# Btu/hr 9,000~18,000 2637~5275 kcal/hr 2267~4536 Heating Capacity# Btu/hr 9,000~18,000 2637~5275 kcal/hr 2267~4536 Input# Cooling 1070~1980 Heating 1040~1960 4.9~8.8 Running Current#(208/230V) Cooling 4.6~8.6 Heating 1,208/230,60 Power Supply Ø,V,Hz Max. Number of Connectable Indoor Units Rotary Compressor Type...
  • Page 17 Product Specifications A-MMC24FA-1 A-MMH24FA-1 Model 9,000~24,000 9,000~24,000 Cooling Capacity# Btu/hr 2637~7033 2637~7033 2267~6037 2267~6037 kcal/hr 9,000~24,000 Heating Capacity# Btu/hr 2637~7033 kcal/hr 2267~6037 Input# Cooling 1170~2390 1170~2390 Heating 1220~2440 Running Current#(208/230V) Cooling 7.7~10.1 7.7~10.1 Heating 7.4~9.8 Power Supply Ø,V,Hz 1,208/230,60 1,208/230,60 Max.
  • Page 18 Product Specifications Model A-MMC36FA-1 A-MMH36FA-1 9,000~36,000 9,000~36,000 Cooling Capacity# Btu/hr 2637~10,550 2637~10,550 2267~9071 2267~9071 kcal/hr 9,000~36,000 Heating Capacity# Btu/hr 2637~10,550 2267~9071 kcal/hr 1320~3680 1320~3680 Input# Cooling 1410~3340 Heating 5.9~16.6 5.9~16.6 Running Current#(208/230V) Cooling 6.3~15.0 Heating 1,208/230,60 1,208/230,60 Power Supply Ø,V,Hz Max.

  • Page 19: Installation

    Installation Installation Read carefully, and then follow step by step. Installation Parts Installation plate Type "A" screw and plastic anchor Type "B" screw Remote Control Holder Installation Tools Figure Name Figure Name Screw driver Ohmmeter Electric Drill Hexagonal wrench Measuring Tape, Knife Ammeter Hole Core Drill Gas Leak Detector...

  • Page 20: Select The Best Location

    Installation Select the best location Indoor unit 1. Do not have any heat or steam near the unit. More than 10 cm 2. Select a place where there are no obstacles in front (3.9 inch) More than 20 cm of the unit. (7.9 inch) 3.

  • Page 21: Piping Length And Elevation

    Installation Piping length and elevation Multi Piping Type Max Elevation Max total length Max length of Min length of Max elevation between each Capacity of all pipes each pipe each pipe between indoor indoor unit and (A+B/A+B+C) (A/B/C) (A/B/C) units (h2) outdoor unit (h1) 18 kBtu 30 m (100 ft)

  • Page 22: Fixing Installation Plate(Standard Type)

    Installation Fixing Installation Plate(Standard Type) The wall you select should be strong and solid enough to prevent vibration Installation Plate 1. Mount the installation plate on the wall with type "A" screws. If mounting the unit on a concrete wall, use anchor bolts.

  • Page 23: Flaring Work And Connection Of Piping

    Flaring Work and Connection of Piping Flaring Work and Connection of Piping Flaring work Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the following procedure. Cut the pipes 1. Use the piping kit accessory or the pipes purchased locally. 2.

  • Page 24: Flaring Work

    Flaring Work and Connection of Piping Check 1. Compare the flared work with the figure by. Smooth all round 2. If a flared section is defective, cut it off and do flaring work Inside is shiny without scratches again. = Improper flaring = Inclined Surface Cracked Uneven...
  • Page 25 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 Connecting cable indoor unit with the upper edge of the installation plate.) Ensure that the hooks are properly seated on the installa- tion plate by moving it left and right.
  • Page 26 Flaring Work and Connection of Piping For left rear 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 Connecting cable the piping hole. 3.
  • Page 27 Flaring Work and Connection of Piping Wrap the insulation material around the connecting por- Plastic bands Insulation material tion. 1. Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation material. Bind them together with vinyl tape so that there may be no gap. 2.

  • Page 28: Good Case

    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 downward slowly. Bad case • Following bending type from right to left may cause damage to the tubing. 28 Multi type Air Conditioner...
  • Page 29 Flaring Work and Connection of Piping REMOTE CONTROL PREPARATION(OPTIONAL) HOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIES HOW TO INSERT BATTERIES Remove the battery cover from the remote con- troller. • Slide the cover according to the arrow direction. •...
  • Page 30 Flaring Work and Connection of Piping Outdoor Align the center of the pipings and sufficiently tighten the flare nut by hand. Finally, tighten the flare nut with torque wrench until the wrench clicks. Outdoor unit • When tightening the flare nut with torque wrench, ensure the direction for tightening follows the arrow on the wrench.

  • Page 31: Connecting The Cable Between Indoor Unit And Outdoor Unit

    Connecting the Cable between Indoor Unit and Outdoor Unit Connecting the Cable between Indoor Unit and Outdoor Unit Connect the cable to the Indoor unit. 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.

  • Page 32: Connect The Cable To The Outdoor Unit

    Connecting the Cable between Indoor Unit and Outdoor Unit Connect the cable to the Outdoor unit. 1. Remove the cover control from the unit by loosening the screw. Outdoor unit Connect the wires to the terminals on the control board individually as the following.

  • Page 33: Connection Method Of The Connecting Cable(Example)

    Connecting the Cable between Indoor Unit and Outdoor Unit Connection method of the connecting cable(Example) (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 Terminal side of panel.

  • Page 34: Connect The Cable To The Indoor Unit

    Connecting the Cable between Indoor Unit and Outdoor Unit CAUTION: Provide a circuit breaker between power source and the unit as shown below. Main power source Power source Fuse or breaker Model Capacity 18 kBtu 1Ø, 230 / 208V 20 A Circuit Breaker Conditioner 24 kBtu...

  • Page 35: Checking The Drainage, Forming The Pipings And Long Pipe Setting

    Checking the Drainage, Forming the Pipings and Long Pipe Setting Checking the Drainage, Forming the Pipings and Long Pipe Setting Checking the drainage To check the drainage. 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.

  • Page 36: Forming The Piping

    Checking the Drainage, Forming the Pipings and Long Pipe Setting Forming the piping Form the piping by wrapping the con- necting portion of the indoor unit with Seal a small insulation material and secure it with opening around the pipings with two kinds of vinyl tape.

  • Page 37: Air Purging And Evacuation

    Air Purging and Evacuation Air Purging and Evacuation 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.

  • Page 38: Evacuation

    Air Purging and Evacuation Evacuation 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, Indoor unit run the vacuum pump.

  • Page 39: Charging

    Charging Charging I Each outdoor unit is factory charged (nameplate charge) for the evaporator as well as a 7.5m(25ft) line set for each indoor line. Any time total line set is used either shorter or longer then the nominal 22.5m(75ft: for tri-zone) line set length the refrigerant charge has to be adjusted.

  • Page 40: Test Running

    Test Running Test Running Split Type 1. Check that all tubing and wiring have been properly con- Bolt nected. 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.

  • Page 41: Operation

    Operation Operation Function of control 1. MAIN UNIT FUNCTION • DISPLAY Operation Indicator • On while in appliance operation, off while in appliance pause • Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on) Sleep Timer Indicator •...
  • Page 42 Operation 27°C(80.6°F), it operates with Super-Low(while in sleep mode, with the medium airflow speed). • While compressor 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. •...
  • Page 43 Operation 2) Fuzzy Operation for Dehumidification • According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C(0.9°F) or more below the setting temp, the compressor is turned off. When 0.5°C(0.9°F) or more above the setting temp, the compressor is turned on.

  • Page 44: Sleep Timer Operation

    Operation • If the appliance is on pause at the time set by the timer, the pause continues. I 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.

  • Page 45: Forced Operation

    Operation I Forced Operation • To operate the appliance by force in case that the remote control is lost, the forced operation selection switch is on the main unit of the appliance to operate the appliance in the standard conditions. •...

  • Page 46: Function Of Indoor Unit

    Operation Function of Indoor Unit Split Type Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature • Room temperature sensor. (THERMISTOR) Room temperature control • Maintains the room temperature in accordance with the Setting Temp. Starting Current Control •...

  • Page 47: Function Of Outdoor Unit

    Operation Function of Outdoor Unit Outdoor Unit Operating Step • Compressor step varies considering condition such as room temp,outdoor temp, operating room number,Temp gap between room temp and set temp and so on. LEV Control • LEV pulse is modulated to keep constant superheat or subcooling. Out door Fan Control •...

  • Page 48: Remote Control Operation

    Operation Remote Control Operation The Remote Controller transmits the signals to the system. 1. START/STOP BUTTON Operation starts when this button is Signal transmitter pressed and stops when the button is pressed again. 2. OPERATION MODE SELECTION BUTTON Used to select the operation mode. (Heat Pump) (Cooling Only) 3.

  • Page 49: Disassembly

    Disassembly Disassembly Indoor Unit Split Type 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.
  • Page 50 Disassembly 2. To remove the Control Box. • Remove securing screws. • Pull the control box out from the chassis carefully. Screw 3. To remove the Discharge Grille. • Unhook the discharge grille and pull the discharge grille out from the chassis carefully. 4.
  • Page 51 Disassembly • 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. To remove the Motor Cover • Remove 2 securing screw. •...

  • Page 52: Schematic Diagram

    Disassembly Schematic Diagram Electronic Control Device 1. Indoor Unit 1) Split Type 52 Multi type Air Conditioner...
  • Page 53 Schematic Diagram 2. Outdoor Unit Service Manual 53...
  • Page 54 Schematic Diagram 54 Multi type Air Conditioner...

  • Page 55: Wiring Diagram

    Schematic Diagram Wiring Diagram 1. Indoor Unit 2. Outdoor Unit 1)A-MMH18FA-1 2) A-MMC24FA-1 Service Manual 55...
  • Page 56 Schematic Diagram 3) A-MMH24FA-1 4) A-MMC36FA-1 5) A-MMH36FA-1 56 Multi type Air Conditioner...

  • Page 57: Components Locations

    Schematic Diagram Components Locations 1. Indoor Unit MAIN P.C.B ASM 1) Split Type • TOP VIEW PCB :6870A90409B ASSY:6871A20771 6871A20782 • BOTTOM VIEW Service Manual 57...
  • Page 58 Schematic Diagram 2. Display ASSEMBLY 1) Split Type (6871A20680) 58 Multi type Air Conditioner...
  • Page 59 Schematic Diagram 3. Outdoor Unit 1) Component side Service Manual 59...
  • Page 60 Schematic Diagram 2) Solder side 60 Multi type Air Conditioner...

  • Page 61: Troubleshooting Guide

    Troubleshooting Guide Troubleshooting Guide Refrigeration Cycle Diagram 1. A-MMH18FA-1 OUTDOOR UNIT Ø9.52 Room B Field Piping Ø9.52 Room A High pressure S/W Header Heat Exchanger EEV-B Ø6.35 Room B Field Piping Ø6.35 Liquid EEV-A Room A Refrigerant Flow Cooling Strainer Heating Th1: Discharge thermistor Th2: Discharge thermistor...
  • Page 62 Troubleshooting Guide 3. A-MMH24FA-1 OUTDOOR UNIT Ø9.52 Room B Field Piping Ø9.52 Strainer Room A High pressure S/W Header Heat Exchanger EEV-B Ø6.35 Room B Field Piping Ø6.35 Liquid EEV-A Room A Refrigerant Flow Cooling Strainer Heating Th1: Discharge thermistor Th2: Discharge thermistor Th3: Outdoor temperature thermistor Th4: Defrost thermistor...
  • Page 63 Troubleshooting Guide 5. A-MMH36FA-1 OUTDOOR UNIT Ø9.52 Room C Ø9.52 Field Piping Room B Ø9.52 Room A High pressure S/W Header Heat Exchanger EEV-C Ø6.35 Room C EEV-B Ø6.35 Field Piping Room B Liquid Ø6.35 EEV-A Room A Refrigerant Flow Cooling Heating Th1: Discharge thermistor...

  • Page 64: Self-Diagnosis Function

    Troubleshooting Guide Self-diagnosis Function I Error Indicator • The function is to self-diagnoisis airconditioner and express the troubles identifically if there is any trouble. • Error mark is ON/OFF for the operation LED of evaporator body in the same manner as the following table. •...

  • Page 65: Cycle Troubleshooting Guide

    Troubleshooting Guide Cycle Troubleshooting Guide Trouble analysis 1. Check temperature difference between intake and discharge air, and operating current. Temp. difference : approx. 0°C(0°F) All amount of refrigerant leaked out. Current : less than 80% of Check refrigeration cycle. rated current Temp.

  • Page 66: Electronic Parts Troubleshooting Guide

    Troubleshooting Guide Electronic Parts Troubleshooting Guide ❇ Refer to electronic contorol device drawing & schematic diagram. The Product doesn’t operate at all. Trouble 1 Turn off the main power and wait until LED on outdoor PCB is off. Turn on the main power again. Does "Beeping"...
  • Page 67 Troubleshooting Guide Product doesn't operate with the remote controller. Trouble 2 Turn on main power. While the compressor has been stopped, the compressor does not operate owing to the delaying function for 3 minutes after stopped. When the compressor stopped Indoor Fan is driven by a low speed. At this point the wind speed is not controlled by the remote controller.
  • Page 68 Troubleshooting Guide The Compressor/Outdoor Fan are don't operate Trouble 3 Turn on the main power. Operate Cooling Mode by setting the disired temperature of the remote controller is less than one of the Indoor temperature by 1°C at least. When in air circulation mode, compressor/outdoor fan is stopped. Check the sensor for Indoor temperature is attatched as close as to be effected by the themperature of Heat Exchange (EVA.) When the sensor circuit for Indoor temperature and connector are in bad connection or are...

  • Page 69: When Indoor Fan Does Not Operate

    Troubleshooting Guide When indoor Fan does not operate. Trouble 4 When indoor Fan does not operate. Does the voltage of each terminals of CN-MOTOR CONNECTOR in Indoor unit corresponds to values in the Table of page 69 Does the voltage of terminal of CN-DC/DC CONNECTOR in Check connecting condition of the CN-MOTOR CON- Indoor unit corresponds to the values in the table of page 56 NECTOR...

  • Page 70: When The Louver Does Not Operate

    Troubleshooting Guide When the louver does not operate. Trouble 5 When Vertical Louver does not operate. • 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 •...

  • Page 71: Error Code

    Troubleshooting Guide Error Code I Trouble Shooting Error Title Cause of error Check point & Normal condition code • Open / Short Normal resistor : 10KΩ / at 25°C(77°F) (Unplugged) Indoor air sensor • Soldered poorly Normal voltage : 2.5Vdc / at 25°C(77°F) (plugged) •...
  • Page 72 Troubleshooting Guide Error Title Cause of error Check point & Normal condition code • Power input AC 230V.(Outdoor, Indoor) • The connector for transmission is disconnected. • The connecting wires are misconnected. Communication 05 / 53 ➔ Outdoor) • The GND 1,2 is not connected at main GND. (Indoor •...
  • Page 73 Troubleshooting Guide Error Title Cause of error Check point & Normal condition code • Check the discharge pipe sensor. • Discharge sensor • Check the install condition for over load. D-Pipe Temp. High temp. high • Check the leakage of refrigerent. •...
  • Page 74 Troubleshooting Guide Error Title Cause of error Check point & Normal condition code • Open / Short Normal resistor : 10KΩ / at 25°C(77°F) (Unplugged) Outdoor air sensor • Soldered poorly Normal voltage : 2.5Vdc / at 25°C(77°F) (plugged) • Internal circuit error •...

  • Page 75: 2-Way, 3-Way Valve

    2-way, 3-way Valve 2-way, 3-way Valve 2-way Valve (Liguid Side) 3-way Valve (Gas Side) Valve cap Hexagonal wrench Open position (4mm) Closed position Flare nut Flare nut Open position Closed position piping piping Service Service connection connection port cap port To outdoor unit To outdoor unit Works...

  • Page 76: Pumping Down

    2-way, 3-way Valve (1) Pumping down Liquid side Indoor unit Outdoor unit Close 2-Way valve Gas side Open 3-Way valve Liquid side Indoor unit Close 2-Way valve Gas side Open 3-Way valve manifold gauge Low- handle Hi- handle (CLOSE) (CLOSE) Procedure •...
  • Page 77 2-way, 3-way Valve (2) Evacuation (All amount of refrigerant leaked) Liquid side Indoor unit Outdoor unit Open 2-Way valve Gas side Open 3-Way valve Liquid side Indoor unit Open 2-Way valve Gas side Open 3-Way valve manifold gauge Vacuum pump Low- handle Hi- handle...

  • Page 78: Gas Charging

    2-way, 3-way Valve (3) Gas Charging (After Evacuation) Liquid side Indoor unit Outdoor unit Open 2-Way valve Gas side Open 3-Way valve Liquid side Indoor unit Open 2-Way valve Gas side Open 3-Way valve manifold gauge Charging cylinder Low-handle (OPEN) Hi- handle Check valve (OPEN)

  • Page 79: Exploded View & Replacement Parts List

    Exploded View & Replacement Parts List Exploded View & Replacement Parts List Indoor Unit Model : B-MMC09FA-1, B-MMH09FA-1, B-MMC12FA-1, B-MMH12FA-1 135312 152302A 152302B 135301 152313 131410 733010 342800 354210 359011 135311 135500 147581 346810 35211B 268711A 135516 352150 147582 Eva out...
  • Page 80 Exploded View & Replacement Parts List Parts List (B-MMC09FA-1, B-MMH09FA-1, B-MMC12FA-1, B-MMH12FA-1) PART No. LOCATION DESCRIPTION CODE B-MMC09FA-1 B-MMH09FA-1 B-MMC12FA-1 B-MMH12FA-1 131410 CHASSIS ASSEMBLY 3141A20019K 3141A20019K 3141A20034R 3141A20034R 135301 GRILLE,FRONT AEB32239106 AEB32239106 AEB32239315 AEB32239315 135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A11307P 3531A11307Q 3531A10362Z...

  • Page 81: Outdoor Unit

    Exploded View & Replacement Parts List Outdoor Unit Model : A-MMH18FA-1 Service Manual 81...
  • Page 82 Exploded View & Replacement Parts List Part List (A-MMH18FA-1) Part No. LOCATION DESCRIPTION CODE A-MMH18FA-1 437211 PANEL ASSEMBLY,FRONT 3721A23001A 137213-1 PANEL ASSEMBLY,SIDE 1A00201D 137213-2 PANEL ASSEMBLY,SIDE 3A02284M 435300 GRILLE,REAR 1A00207B 435301 GRILLE,DISCHARGE 3530A20007B 435512 COVER ASSEMBLY, TOP 3H03266L 430410 BASE ASSEMBLY,OUTDOOR 3041AP2741G 554031 CONDENSER, ASSEMBLY, BENDING...
  • Page 83 Exploded View & Replacement Parts List Model : A-MMC24FA-1, A-MMH24FA-1 Service Manual 83...
  • Page 84 Exploded View & Replacement Parts List Part List (A-MMC24FA-1, A-MMH24FA-1) Part No. Location Description CODE A-MMC24FA-1 A-MMH24FA-1 437211 PANEL ASSEMBLY,FRONT(OUTDOOR) AGL32105601 AGL32105601 349480 ORIFICE 4948A20005A 4948A20005A 437210 PANEL ASSEMBLY, FRONT(SUB) 1A00197C 1A00197C 137213-1 PANEL ASSEMBLY, SIDE 1A00202F 1A00202F 137213-2 PANEL ASSEMBLY, SIDE 3A02284R 3A02284R 435300...
  • Page 85 Exploded View & Replacement Parts List Model : A-MMC36FA-1, A-MMH36FA-1 Service Manual 85...
  • Page 86 Exploded View & Replacement Parts List Part List (A-MMC36FA-1, A-MMH36FA-1) PART No. LOCATION DESCRIPTION CODE A-MMC36FA-1 A-MMH36FA-1 435301 GRILLE,DISCHARGE 3530A20006G 3530A20006G 435300 GRILLE,REAR 3530A10176B 3530A10176B 263230-5 THERMISTOR, NTC 6323A20028A 6323A20028A 567480-4 THERMISTOR, NTC 6323A20026A 6323A20026A 430410 BASE ASSEMBLY, OUTDOOR 3041AP2741Q 3041AP2741Q 435511 COVER ASSEMBLY,CONTROL(OUTDOOR)
  • Page 87 Specifications and performance data subject to change without notice. HEAT CONTROLLER, INC. 1900 WELLWORTH AVENUE • JACKSON, MICHIGAN 49203 THE QUALITY LEADER IN CONDITIONING AIR P/No.:3828A20390X...

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