versusindex
MT
Heat pumps · MT

ViessmannVitocal 222 SI AWBS-M-E-AC 221.E08 I

The Viessmann Vitocal 222 SI AWBS-M-E-AC 221.E08 I is an air-to-water heat pump with a SCOP of 4.9 (35 °C) and a sound power level of 50 dB(A).1

Last updated: Technical specifications ⇄ Compare this model
Search this model
SCOP (35 °C)
4.91

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

Heating capacity (A7/W35)
6.83kW1
Official source
Outdoor unit sound power
50dB(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) 6.83 kW1
Rated output 35 °C 7.8 kW1
Rated output 55 °C 7 kW1
Min. outdoor temperature -20 °C1
Efficiency
SCOP (35 °C) 4.91
SCOP (55 °C) 3.331
Seasonal efficiency ηs 35 °C 193 %1
Seasonal efficiency ηs 55 °C 130 %1
Energy label 35 °C A, , , 1
Energy label 55 °C A, , 1
COP A7/W35 4.991
Noise
Outdoor unit sound power 50 dB(A)1
Indoor unit sound power 41 dB(A)1
Refrigerant
Refrigerant R321
Refrigerant GWP 6751
Refrigerant charge 1.5 kg1

Frequently asked questions

Which refrigerant does the Viessmann Vitocal 222 SI AWBS-M-E-AC 221.E08 I use?

The Viessmann Vitocal 222 SI AWBS-M-E-AC 221.E08 I uses R32.1

Sources

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