Contents
Main
HEAT CONTROLLER, INC.
Wall Mounted Multi-Zone Split System Air Conditioner Service Manual
TABLE OF CONTENTS
Combination table
Symbols Used in this Manual
Safety Precautions
Installation
CAUTION
WARNING
WARNING
Page
Page
CAUTION
Installation
Operational
Page
Seaside applications and installation
Seaside applications and installation
Selecting the location(Outdoor Unit)
Dimensions
Split Type Indoor
Outdoor Unit
UE 18kBtu/h
Page
UE2 36kBtu/h
Product Specifications
Wall Mounted
Indoor Unit Type Model
A-MMC18FA-1 A-MMH18FA-1
Outdoor Unit - Multiple piping models
A-MMC24FA-1 A-MMH24FA-1
A-MMC36FA-1 A-MMH36FA-1
Installation
Read carefully and then follow step-by-step.
Installation Parts
Installation Tools
Selecting the best location
Indoor unit
36 kBtu/h
Outdoor unit
Rooftop Installations:
Piping length and elevation
Multi Piping Type
18 / 24 kBtu/h 36 kBtu/h
Installing Installation Plate(Standard Type)
Drilling the hole in the wall
Flaring Work and Connection of Piping
Flaring work
Cut the pipes
Burrs removal
Adding the Flare Nut
Connecting the Piping
For right rear piping
Page
For left rear piping
Page
Page
REMOTE CONTROL PREPARATION(OPTIONAL)
Outdoor
Outside diameter Torque mm inch kg.m lbf.in 6.35 1/4 1.8 156.2 9.52 3/8 4.2 364.5
Connecting the Cable between Indoor Unit and Outdoor Unit
Connect the cable to the Indoor unit.
Line voltage (208~230V)
Low voltage (below 40V)
18 / 24 kBtu/h 36 kBtu/h
Connect the cable to the Outdoor unit.
C-UNIT
C Indoor
B IndoorA Indoor
A Indoor B Indoor
Methods of connecting the cable
High voltage
Strand wire
Low voltage
Connect the cable to the indoor unit
CAUTION: Provide a circuit breaker between power source and the unit as shown below.
Checking the Drainage, Insulating the Pipe and Special Piping Applications
Checking the Drainage, Insulating the Pipe and Special Piping Applications
Checking the drainage
To check the drainage.
Drain piping
Insulating the Pipe and Special Piping Applications
Air Purging and Evacuation
Leak checking
Air Purging and Evacuation
Evacuation
Finishing the job
: Repeat evacuation procedure for each indoor unit.
NOTICE
Charging
Example: Important:
Charging
Test Running
Test Running
Split Type
Operation
Function of control
1. MAIN UNIT FUNCTION
DISPLAY
Cooling Mode Operation
Operation
Defrost Control(Heating)
Fuzzy Operation
Airflow Speed Selection
Operation
On-Timer Operation
Off-Timer Operation
Page
Forced Operation
Operation
Buzzer Sound
Operation
Function of Indoor Unit
Split Type
Indoor Unit
Function of Outdoor Unit
Operation
Outdoor Unit
Remote Control Operation
Operation Mode
Disassembly
Split Type Indoor Unit
Page
5. To remove the Motor Cover
6. To remove the Cross-Flow Fan
Page
Page
Page
Page
Page
Component Locations
Page
Page
Page
Troubleshooting Guide
Refrigeration Cycle Diagram
2. A-MMH18FA-1
Cooling
Strainer
3. A-MMC24FA-1
4. A-MMH24FA-1
OUTDOOR UNIT
Strainer
Cooling
5. A-MMC36FA-1
6. A-MMH36FA-1
Self-diagnosis Function
Indoor Error
LED1 LED2
Outdoor Error
Cycle Troubleshooting Guide
Trouble analysis
Electronic Parts Troubleshooting Guide
The Product doesnt operate at all.
Trouble 1
Product doesn't operate with the remote controller. Trouble 2
The Compressor/Outdoor Fan don't operate Trouble 3
When indoor Fan does not operate.
When indoor Fan does not operate. Trouble 4
Voltage of Connectors according to Indoor Fan Speed
When Vertical Louver does not operate. Trouble 5
Error Code
Check the resistance / voltage
Page
Page
Check the resistance
2-way, 3-way Valve
(1) Pumping down
(2) Evacuation
Procedure
(3) Gas Charging
Procedure
Exploded View
Model : B-MMC09FA-1, B-MMH09FA-1, B-MMC12FA-1, B-MMH12FA-1
Outdoor Unit
Model : A-MMC18FA-1, A-MMH18FA-1
Model : A-MMC24FA-1, A-MMH24FA-1
Model : A-MMC36FA-1, A-MMH36FA-1
