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
2 List of Functions
1. List of Functions
1.1 Cooling Only Models
Category Functions
FTKS20-35D3VMW(L)
FTKS50D2V1W(L)
Category Functions
FTKS20-35D3VMW(L)
FTKS50D2V1W(L)
Basic
Function
Inverter (with Inverter Power Control) {{Health &
Clean
Air Purifying Filter — —
Operation Limit for Cooling (°CDB)
——
Operation Limit for Heating (°CWB) — — Photocatalytic Deodorizing Filter — —
PAM Control — —
Air Purifying Filter with Photocatalytic
Deodorizing Function
——
Compressor Oval Scroll Compressor — —
Titanium Apatite Photocatalytic
Air-Purifying Filter
{{
Swing Compressor — —
Rotary Compressor — — Longlife Filter (Option) — —
Reluctance DC Motor — — Mold Proof Air Filter {{
Comfortable
Airflow
Power-Airflow Flap — — Wipe-clean Flat Panel {{
Power-Airflow Dual Flaps {{ Washable Grille — —
Power-Airflow Diffuser — — Filter Cleaning Indicator — —
Wide-Angle Louvers {{ Mold Proof Operation — —
Vertical Auto-Swing (Up and Down) {{ Heating Dry Operation — —
Horizontal Auto-Swing (Right and Left) — — Good-Sleep Cooling Operation — —
3-D Airflow — — Timer Weekly Timer — —
Comfort Airflow Mode {{ 24-Hour On/Off Timer {{
3-Step Airflow (H/P Only) — — 72-Hour On/Off Timer — —
Comfort
Control
Auto Fan Speed {{ Night Set Mode {{
Indoor Unit Quiet Operation {{Worry Free
“Reliability &
Durability”
Auto-Restart (after Power Failure) {{
Night Quiet Mode (Automatic) — — Self-Diagnosis (Digital, LED) Display
{{
Outdoor Unit Quiet Operation (Manual) — — Wiring Error Check — —
Intelligent Eye
{{
Anticorrosion Treatment of Outdoor
Heat Exchanger
——
Quick Warming Function — —
Hot-Start Function — — Flexibility
Multi-Split / Split Type Compatible
Indoor Unit
{{
Automatic Defrosting — —
Operation Automatic Operation — — Flexible Voltage Correspondence
{
—
Programme Dry Function
{{
High Ceiling Application — —
Fan Only
{{
Chargeless — —
Lifestyle
Convenience
New Powerful Operation (Non-
Inverter)
— — Either Side Drain (Right or Left)
{{
Inverter Powerful Operation
{{
Power Selection — —
Priority-Room Setting — —
Remote
Control
5-Rooms Centralized Controller
(Option)
{{
Cooling / Heating Mode Lock — —
Remote Control Adaptor
(Normal Open-Pulse Contact) (Option)
{{
Home Leave Operation — —
ECONO Mode
{{
Remote Control Adaptor
(Normal Open Contact) (Option)
{{
Indoor Unit On/Off Switch
{{
Signal Reception Indicator
{{
DIII-NET Compatible (Adaptor)
(Option)
{{
Temperature Display — — Remote
Controller
Wireless
{{
Another Room Operation — — Wired — —
Note:
{
: Holding Functions
— : No Functions