Mitsubishi Electric Ecodan R290 Monobloc (5.2 kW)

Specifications and technical data

Also known as: PUZ-WZ50VAA-BS, PUZ-WZ50VAA(-BS)

✓ BUS eligibleAir Source (ASHP)ResidentialR2905.2 kW

Manufacturer	Mitsubishi Electric
Model	Ecodan R290 Monobloc
Model code	PUZ-WZ50VAA
Heat pump type	Air Source (ASHP) All Air Source heat pumps →
Application	Residential All Residential heat pumps →
Refrigerant	R290 All R290 heat pumps →
Mode	Heating only
Heating capacity	5.2 kW
Max heating output (low temp)	5.2 kW at A-7/W35
COP (heating)	2.68 at A-7/W35
SCOP (heating)	4.42 at W35
Operating range (air)	-25 to 46 °C
Heating flow temperature	up to 75 °C
Electrical supply	220-240V (Single Phase)
Dimensions (H×W×D)	1020 × 1050 × 480 mm
Operational Weight	89 kg
Sound power level	56 dB(A) (Sound Power LW(A))
Data added	2026-09-24
Data source	Manufacturer documentation (Mitsubishi Electric)
Verification	Verified by a human
Boiler Upgrade Scheme	✓ BUS eligible — Listed on the Ofgem BUS Product Eligibility List (24 Sep 2026). Grant also needs an MCS-certified installer and a qualifying system design. Funding guide
PEL certificate no.	037-0135-23-1
MCS certification	✓ MCS listed
MCS certificate no.	037-0135-23-1; 037-0135-23-2

Free data sheet (PDF) →

Check noise at a neighbour’s window (MCS 020 a) →

Mitsubishi Electric Ecodan R290 PUZ-WZ50VAA, 5.2 kW air-to-water monobloc with natural R290 refrigerant. 5.2 kW at A-7/W35 with a COP of 2.68; SCOP 4.42 at W35 (A+++) and 3.38 at W55 (A++). Flow to 75 C, operates down to -25 C. Sound power 56 dB(A). Single-phase.

Where to buy (UK)

UK Supplier	The Heat Pump Warehouse
UK Supplier	Secon Renewables
UK Supplier	City Plumbing
UK Supplier	BHL
UK Supplier	Quality Heating

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Data is compiled from manufacturer sources and may contain errors or gaps. Always confirm specifications with the manufacturer before making decisions.