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PanasonicWH-ADC0309J3E5 / WH-UD03JE5

The Panasonic WH-ADC0309J3E5 / WH-UD03JE5 is an air-to-water heat pump with a SCOP of 5.07 (35 °C) and a sound power level of 55 dB(A).1

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SCOP (35 °C)
5.071

Seasonal efficiency: how much heat you get per kWh of electricity across a heating season.

Heating capacity (A7/W35)
3.2kW1
Official source
Outdoor unit sound power
55dB(A)1
Official source
Refrigerant
R321
Official source
Type (source)
Air-to-water1
Official source

Technical specifications

General
Type (source) Air-to-water1
Performance
Heating capacity (A7/W35) 3.2 kW1
Rated output 35 °C 4 kW1
Rated output 55 °C 3 kW1
Min. outdoor temperature -22 °C1
Efficiency
SCOP (35 °C) 5.071
SCOP (55 °C) 3.471
Seasonal efficiency ηs 35 °C 200 %1
Seasonal efficiency ηs 55 °C 136 %1
Energy label 35 °C A, , , 1
Energy label 55 °C A, , 1
COP A7/W35 5.331
SEER (cooling) 6.291
Noise
Outdoor unit sound power 55 dB(A)1
Indoor unit sound power 41 dB(A)1
Refrigerant
Refrigerant R321
Refrigerant GWP 6751
Refrigerant charge 0.9 kg1

Variants

This model is registered in 7 combinations (for example with a different indoor unit or cylinder) with exactly the same performance. All figures on this page apply to each of these types. The part of the type number that differs is in bold; small differences (e.g. cylinder volume or anode) are listed after it:

  • WH-ADC0309J3E5 / WH-UD03JE5
  • WH-ADC0309J3E5AN / WH-UD03JE5
  • WH-ADC0309J3E5ANC / WH-UD03JE5
  • WH-ADC0309J3E5B / WH-UD03JE5
  • WH-ADC0309J3E5C / WH-UD03JE5
  • WH-ADC0309J3E5UK / WH-UD03JE5
  • WH-SDC0305J3E5 / WH-UD03JE5

Frequently asked questions

Which refrigerant does the Panasonic WH-ADC0309J3E5 / WH-UD03JE5 use?

The Panasonic WH-ADC0309J3E5 / WH-UD03JE5 uses R32.1

Sources

  1. Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026