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Heat pumps · UK

Viessmann Climate SolutionsIDU-A Compact 2C AWMIT.A1.19-V056 ODU 250-A AWMOF-251.A1.19-400-V002

The Viessmann Climate Solutions IDU-A Compact 2C AWMIT.A1.19-V056 ODU 250-A AWMOF-251.A1.19-400-V002 is an air-to-water heat pump with a SCOP of 4.86 (35 °C) and a sound power level of 48 dB(A). Under permitted development the limit is 42 dB(A) measured 1 m from the nearest neighbouring habitable-room window. Free-standing, the indicative minimum distance is 0.8 m; against a wall 1.1 m.

Last updated: Technical specifications Rules in the UK
SCOP (35 °C)
4.86

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

Outdoor unit sound power
48dB(A)
Official source
Refrigerant
R290
Official source
Rated output 35 °C
13.61kW
Official source
Rated output 55 °C
13.18kW
Official source
UK

Rules in the UK

These rules are still being verified.

Minimum distance to your neighbour

Permitted development rights + MCS 020 planning standard · 1 m from the nearest neighbouring habitable-room window

Permitted development (MCS 020) ≤ 42 dB(A) · at the assessment position
Free-standing 0.8 m
Against wall 1.1 m
In corner 1.6 m

Indicative calculation (hemispherical, no barriers). Not a substitute for an MCS 020 assessment. Source

Boiler Upgrade Scheme

Unknown

Fixed grant towards installation; check current amount with Ofgem. Ofgem

Technical specifications

General
Type Air-to-water BAFA
Compressors 1 BAFA
Capacity control Inverter BAFA
Performance
Rated output 35 °C 13.61 kW BAFA
Rated output 55 °C 13.18 kW BAFA
Efficiency
SCOP (35 °C) 4.86 BAFA
SCOP (55 °C) 3.88 BAFA
Seasonal efficiency ηs 35 °C 191 % BAFA
Seasonal efficiency ηs 55 °C 152 % BAFA
COP A7/W35 6.3 BAFA
COP A2/W35 5 BAFA
COP A-7/W35 2.8 BAFA
Noise
Outdoor unit sound power 48 dB(A) BAFA
Indoor unit sound power 40 dB(A) BAFA
Refrigerant
Refrigerant R290 BAFA
Refrigerant charge 2 kg BAFA
Electrical
Max. power input 1.71 kW BAFA
Connectivity & smart
SG Ready Yes BAFA

Frequently asked questions

Can I install the Viessmann Climate Solutions IDU-A Compact 2C AWMIT.A1.19-V056 ODU 250-A AWMOF-251.A1.19-400-V002 without planning permission?

Under Permitted development rights + MCS 020 planning standard the unit must not exceed 42 dB(A) 1 m from the nearest neighbouring habitable-room window. With a sound power of 48 dB(A) that indicatively means 0.8 m free-standing, 1.1 m against a wall or 1.6 m in a corner. Your MCS installer must confirm this.

Which refrigerant does the Viessmann Climate Solutions IDU-A Compact 2C AWMIT.A1.19-V056 ODU 250-A AWMOF-251.A1.19-400-V002 use?

The Viessmann Climate Solutions IDU-A Compact 2C AWMIT.A1.19-V056 ODU 250-A AWMOF-251.A1.19-400-V002 uses R290.