Heat CONTROLLER, INC
 Contents
 Indoor Unit
Functions
Auto Wind
 Operation Owoff Operation Mode Selection
Remote Controller
Fan Speed Selection
 Product SpecificationsCooling Only
Power Supply 17Z,-W
Air Circulation
Oumw 1 ,260
 Product SpecificationsCooling & Heating
 Jzý, Installation plate
Indoor Unit
Tubing hole cover
9k, 12k 18k, 24k
 Gas side
Outdoor Unit
Model DIM
 Refrigeration Cycle Diagram
Cooling Only Models
 Cooling & Heating Models
Camay a Heating
Heat
Evaporator I / \
 Indoor Wiring Diagram
Indoor Wiring Diagram
MSS-012, MSS-018, MS18, MSS-024, MSF4424
Iroom
 Outdoor Unit Cooling Only Models
9k, 12k
18k 24k
LO.a
 12k 18k 24k
 Time delay Safety Control
Cooling Operation Mode
Function of main control
Airflow Direction Control
 Intake AIR Temp Setting TEMP. +1F
Auto Operation Electronic control mode
Setting TEMP. -10F
 Modeo
MODE1rStart
MODE2 MODE3 MODE4 Modes
End
 Soft Dry Operation Mode
Intake AIR TE
Selecting Low
OFF Compressor
 Intake AIR Temp Setting TEMP. +60F
Setting Temp
Heating Operation Modeonly Heating Model
Indoor
 Rý u
Pipe Temp
Defrost OFF
Defrost on
 Cooling or Heating Mode with Sleep Mode Auto Control
Setting TEMP. -1F
 Setting Temp
Forced Operation
Crank Case Heater Coil Controlonly Heating model
ICJ
 Indoor
Outdoor
 Display Function
Self-diagnosis Function
Buzzer Sound
Diagnosis
 Installation
Is toxic when burned
When connecting refrigerant tubing
When servicing
 Selection of the best location
Roof Top Installations
Piping length and the elevation
 Indoor Unit Installation
Avoid areas where electrical wiring, conduits or
Wire or gas line can cause death or injury
Lower left and right side of Installation Plate
 Piping and Drainage of Indoor Unit
Preparation of Pipings
Started Poo
113 H IW-0
 Connection of Pipings
For right rear piping
 Llj
5kgm39.8ft.ibs
 For the left pipings
 Insert the connecting cable into the indoor unit
Tape the tubing, drain hose and the connecting
Indoor unit installation
Installation plate. Engage the two hooks of the rear
 Drain hose Taping
 Connecting the pipings to the Outdoor unit
Connecting Pipings and the cable to Outdoor unit
Connection of the cable
 Terminals and fasten the wire tightly with the fixing screw
2sanoev
 Checking the Drainage
 Connect the cable to the indoor unit
Attach the Grille onto the cabinet
 Bwid
Forming the pipings
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Page
 Settfemont of Outdoor Unit
Temperature, Pressure, Ampere Chan
Evaluation of theperformance
 Name and Function-Remote Controller
MG OFF Timer Button
Sleep Mode Auto Button
Operation display
 Qs Operation Mode Selection Button
Start/Stop Button
 Be careful not to lose the clip when reassem- bling
Cooling & Heating
Remove the securing screws
To remove the Control Box
 Remove 2 securing screws
Page
 To remove the Grille from the Chassis
To remove the Control Box
 To remove the Discharge Grille
To remove the Evaporator
Remove three screws fixing control box and motor
Unhook the tab on the left inside edge
 To remove the Cross-Flow Fan
To remove the Fan Motor
 Trouble analysis
Cycle Troubleshooting Guide
Cause of Trouble
 Turn off Main Power Cý After 10 seconds
Connector related to CN-POWER Connector related to CN-FAN
Display PWB Assy Check Connector related to CN-DC/DC
Does beeping sound is made from the Indoor Unit?
 Product Is not operate with the remote controller
R751K C711000PF Micom PIN Check Receiver Assy
 Turn on Main Power
Compressor/Outdoor Fan are unable to drive
 When Indoor Fan does not operate
 When Vertical Louver does not operate
 When a comunication error occurs
Operation indicator of Indoor unit blinks five times
 Phenomena in case of connecting error
Indoor Unit
CN-UP/DOWN
CN-TH
 CN-POWER RY-COMP
+0 , ý
Outdoor Unit
CN-TRANS CN-FAN
 Voltage of Connectors according to Indoor Fan Speed
 Electronic Control Device
Optional Function
 Optional Function Model
Main PWB ASSYOutdoor Unit
1OK
 18k, 24k
LDt ftn
ASM
LD2 LD4
 Schematic Diagram
Page
 BA ýJ
 Plate Installation
Remote Controller
Heat OTY Remark
Parts Name Controller
 Indoor Unit18k, 24k
 Parts Name
Motor Assy Chassis Assy
 7DDD \ , \
Tom, .ý M m mm
 9k, 12k
Base Weld ASM Condenser Compressor ASM
Reversing Valve Reversing Coil
Front Panel Assy
 Barrier
TOP Cover ASM Rear Panel
31 CAP
Capillary Final ASM HEATERCRANK-CASE1 Heat QTY Remark
 Outdoor Unit18k
 `Ty
 L8k
MSS-018A MSH-018A
 171
 PWB ASSY, Main SH-CAPACITOR
Reversing Coil QTY Remark
Clamp Capacitor Controller Assy Check Valve CAPILLARY, Bent
 CAPILLARY, Bent Panel Cover Control
29 CAP
PANEL, Rear
2021-0024
 Remark R means service parts
ICJ No
9O2k
MSS-009B MSS-012B 2021-0001
 Plate Installation Holder Tube Motor Assy Chassis Assy
MSS-0188 MSH-018B
2021-0001 2021-0074 2010-0003 2021-0069 2021-0005
FAN Assy Cross
 Service VALVE1/4 Service VALVE112
GQ 21k
 TOP Cover ASM
Capillary
Final ASM
HEATERCRANK-CASE
 High Pressure S/W
Reversing Valve
 2021-0024 I`J
FAN Motor
MSS-018A MSH-018A
 SAT City Remark
Support Valve High Pressure S/W Reversing Coil
PWBASSY,MAIN
 UTY Remark
2035-0004 2035-0006
2021-0021 2050-0001
Extra FAN Barrier ASM
 Heat CONTROLLER, INC