Specifications
Table Of Contents
- Cover
- Table of Contents
- Part 1 List of Functions
- Part 2 Specifications
- Part 3 Printed Circuit Board Connector Wiring Diagram
- Part 4 Function and Control
- Part 5 Operation Manual
- Part 6 Service Diagnosis
- 1. Caution for Diagnosis
- 2. Problem Symptoms and Measures
- 3. Service Check Function
- 4. Code Indication on the Remote Controller
- 5. Troubleshooting
- 5.1 Indoor Units
- 5.2 Outdoor Units
- 5.3 Indoor Unit PCB Abnormality A1
- 5.4 Freeze-up Protection Control or High Pressure Control A5
- 5.5 Fan Motor or Related Abnormality A6
- 5.6 Thermistor or Related Abnormality (Indoor Unit) C4,C9
- 5.7 Front Panel Open / Close Fault C7
- 5.8 Signal Transmission Error (between Indoor and OutdoorUnit) U4
- 5.9 Unspecified Voltage (between Indoor and Outdoor Units) UA
- 5.10 Freeze-up Protection Control A5
- 5.11 Outdoor Unit PCB Abnormality E1
- 5.12 OL Activation (Compressor Overload) E5
- 5.13 Compressor Lock E6
- 5.14 DC Fan Lock E7
- 5.15 Input Over Current Detection E8
- 5.16 Discharge Pipe Temperature Control F3
- 5.17 High Pressure Control in Cooling F6
- 5.18 Compressor Sensor System Abnormality H0
- 5.19 Position Sensor Abnormality H6
- 5.20 CT or Related Abnormality H8
- 5.21 Thermistor or Related Abnormality (Outdoor Unit) P4,J3,J6,J8,J9,H9
- 5.22 Electrical Box Temperature Rise L3
- 5.23 Radiation Fin Temperature Rise L4
- 5.24 Output Over Current Detection L5
- 5.25 Insufficient Gas U0
- 5.26 Low-voltage Detection or Over-voltage Detection U2
- 5.27 Signal Transmission Error (on Outdoor Unit PCB) U7
- 5.28 Anti-icing Function in Other Rooms / UnspecifiedVoltage (between Indoor and Outdoor Units) UA,UH
- 6. Check
- Part 7 Removal Procedure
- Part 8 Others
- Part 9 Appendix
- Index
- Drawings & Flow Charts

List of Functions SiBE12-713
6 List of Functions
Category Functions
4MKS75F2V1B
Category Functions
4MKS75F2V1B
Basic
Function
Inverter (with Inverter Power Control) { Health &
Clean
Air Purifying Filter —
Operation Limit for Cooling (°CDB)
–10
~
46
Photocatalytic Deodorizing Filter —
Operation Limit for Heating (°CWB) —
Air Purifying Filter with Photocatalytic
Deodorizing Function
—
PAM Control {
Titanium Apatite Photocatalytic
Air-Purifying Filter
—
Compressor Oval Scroll Compressor — Longlife Filter (Option) —
Swing Compressor { Mold Proof Air Filter —
Rotary Compressor — Wipe-clean Flat Panel —
Reluctance DC Motor { Washable Grille —
Comfortable
Airflow
Power-Airflow Flap — Filter Cleaning Indicator —
Power-Airflow Dual Flaps — Mold Proof Operation —
Power-Airflow Diffuser — Heating Dry Operation —
Wide-Angle Louvers — Good-Sleep Cooling Operation —
Vertical Auto-Swing (Up and Down) — Timer Weekly Timer —
Horizontal Auto-Swing (Right and Left) — 24-Hour On/Off Timer —
3-D Airflow — 72-Hour On/Off Timer —
Comfort Airflow Mode — Night Set Mode —
3-Step Airflow (H/P Only) — Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) —
Comfort
Control
Auto Fan Speed — Self-Diagnosis (Digital, LED) Display
{
Indoor Unit Quiet Operation — Wiring-Error Check
{
Night Quiet Mode (Automatic)
{
Anticorrosion Treatment of Outdoor
Heat Exchanger
{
Outdoor Unit Quiet Operation (Manual) {
Flexibility Multi-Split / Split Type Compatible
Indoor Unit
—
Intelligent Eye — Flexible Voltage Correspondence —
Quick Warming Function — High Ceiling Application —
Hot-Start Function — Chargeless
{
Automatic Defrosting — Either Side Drain (Right or Left) —
Operation Automatic Operation — Power-Selection —
Programme Dry Function —
Remote
Control
5-Rooms Centralized Controller
(Option)
—
Fan Only —
Remote Control Adaptor
(Normal Open-Pulse Contact) (Option)
—
Lifestyle
Convenience
New Powerful Operation
(Non-Inverter)
—
Remote Control Adaptor
(Normal Open Contact) (Option)
—
Inverter Powerful Operation — DIII-NET Compatible (Adaptor) (Option) —
Priority-Room Setting
{
Remote
Controller
Wireless —
Cooling / Heating Mode Lock
{
Wired —
Home Leave Operation —
ECONO Mode —
Indoor Unit On/Off Switch —
Signal Reception Indicator —
Temperature Display —
Another Room Operation —
Note:
{
: Holding Functions
— : No Functions