WH-SDC03H3E5-1, WH-SDC05H3E5-1, WH-SDC07H3E5-1, WH-SDC09H3E5-1, WH-UD03HE5-1, WH-UD05HE5-1, WH-UD07HE5-1, WH-UD09HE5-1 - Panasonic Air Conditioner Service Manual Simplified (repair manual). Page 18

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18 
3. Features 
 
  Inverter Technology 
 
- Energy saving 
 
  High Efficiency 
 
  Compact Design 
 
  Environment Protection 
 
- Non-ozone depletion substances refrigerant (R410A) 
 
  Long Installation Piping 
 
- Long piping up to 15 meter with height difference 5 meter 
 
- Flexible 4-way piping for outdoor unit 
 
  Easy to use control panel 
 
  Weekly Timer setting 
 
  Quality Improvement 
 
- Random auto restart after power failure for safety restart operation 
 
- Gas leakage protection 
 
- Prevent compressor reverse cycle 
 
- Inner protector to protect compressor 
 
  Serviceability Improvement 
 
- Breakdown Self Diagnosis function 
 
- System Status Check Buttons for servicing purpose 
 
- System Pumpdown Button for servicing purpose 
 
- Front maintenance design for outdoor unit 
 
  Operation Condition 
 
 
Indoor Outdoor 
Water outlet temperature (°C) 
Ambient temperature (°C) 
COOLING 
Maximum 20 
43 
Minimum 5 
16 
HEATING 
Maximum 55 
35 
Minimum 20 
-20 
 
 
NOTICE : When the outdoor temperature is out of the above temperature range, the heating capacity will drop significantly  
and outdoor unit might stop for protection control. 
 
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