TCL R32 Heat Pump (4.5 kW)

Specifications and technical data

✓ BUS eligibleAir Source (ASHP)ResidentialR324.5 kW

Manufacturer	TCL
Model	R32 Heat Pump
Model code	THMLd-4D/3HBp-A
Heat pump type	Air Source (ASHP) All Air Source heat pumps →
Application	Residential All Residential heat pumps →
Refrigerant	R32 All R32 heat pumps →
Mode	Heating & cooling
Heating capacity	4.5 kW
Max heating output (low temp)	4.4 kW at A7/W55
COP (heating)	5.1 at A7/W35
SCOP (heating)	4.6 at W35
Operating range (air)	-25 to 43 °C
Heating flow temperature	25–65 °C
Electrical supply	220-240V (Single Phase)
Cooling capacity	4.5 kW
Max cooling output (high temp)	4.5 kW at A35/W7
Cooling flow temperature	5–20 °C
EER (cooling)	3.5 at A35/W7
Dimensions (H×W×D)	709 × 1220 × 390 mm
Operational Weight	76 kg
Sound power level	56 dB(A) (Sound Power LW(A))
Data added	2026-08-30
Data source	Manufacturer datasheet
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.	CN-MCS-250004/01
MCS certification	✓ MCS listed
MCS certificate no.	CN-MCS-250004/01

Free data sheet (PDF) →

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

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TCL THMLd-4D/3HBp-A Tri-thermal air-to-water heat pump, 4.2 kW, R32 refrigerant. Provides space heating, cooling and domestic hot water from one unit, with a maximum flow temperature of 80 C and operation down to -25 C.

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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.