Mitsubishi Electric Ecodan Monobloc (R410A) (PUHZ-W112YAA)

Specifications and technical data

Also known as: PUHZ-W112YAA-BS

✓ BUS eligibleAir Source (ASHP)ResidentialR410A17.3 kW

Manufacturer	Mitsubishi Electric
Model	Ecodan Monobloc (R410A)
Model code	PUHZ-W112YAA
Heat pump type	Air Source (ASHP) All Air Source heat pumps →
Application	Residential All Residential heat pumps →
Refrigerant	R410A All R410A heat pumps →
Mode	Heating & cooling
Heating capacity	17.3 kW
Max heating output (low temp)	10.4 kW at A-7/W35
COP (heating)	4.54 at A7/W35
Operating range (air)	-20 to 35 °C
Heating flow temperature	up to 60 °C
Electrical supply	380-415V (Three Phase)
Cooling capacity	10 kW
Max cooling output (high temp)	10 kW at A35/W7
EER (cooling)	2.83 at A35/W7
Dimensions (H×W×D)	1020 × 1050 × 480 mm
Operational Weight	131 kg
Sound power level	60 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.	037-0002-18-03
MCS certification	✓ MCS listed
MCS certificate no.	037-0002-18-03; 037-0002-18-04

Free data sheet (PDF) →

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

Mitsubishi Electric Ecodan PUHZ-W112YAA, R410A air-to-water monobloc. 11.2 kW at A7/W35 with a COP of 4.54 to EN 14511. Reversible, 10.0 kW cooling at A35/W7. Flow to 60 C, operates down to -20 C. Three-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

✎ Suggest a correction to this data

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