Samsung
The Samsung RC140MHXGA is a 14 kilowatt monobloc air source heat pump using R410A refrigerant, featuring automatic defrost and compatibility with wired remote controllers.
The Samsung RC140MHXGA is a 14 kW monobloc air-to-water heat pump designed for domestic heating and hot water applications. As part of the Mono Control Unit range, this unit utilizes R410A refrigerant to provide consistent thermal output. It is engineered for integration with a wired remote controller and features an automatic defrost cycle. This reference guide provides technical specifications, model variants, and installation data for UK heating engineers and system designers.
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Full technical specifications extracted from the manufacturer brochure. Empty sections are hidden.
The Samsung RC140MHXGA is a high-capacity monobloc air-to-water heat pump, providing a nominal thermal output of 14 kW. This unit is specifically designed for the UK domestic market where larger heat losses or significant hot water demands require a robust heating solution. As a monobloc system, the RC140MHXGA houses the entire refrigerant circuit within the outdoor casing, which simplifies the installation process by allowing for direct hydraulic connections to the property's internal heating system.
The appliance operates using R410A refrigerant, a standard in high-capacity heat pump systems of this generation. The system is managed via a dedicated Wired Remote Controller, which provides the interface for adjusting heating curves, schedules, and monitoring system performance. A critical operational feature is the automatic defrost cycle, which ensures the evaporator coils remain clear of frost during low ambient temperature conditions, maintaining consistent heat exchange efficiency without requiring manual intervention from the end-user.
This model is part of a broader family of Samsung mono control units. The range includes several variants to suit different property sizes, including the 9 kW RC090MHXEA, the 12 kW RC120MHXGA and RC120MHXEA, and the 16 kW RC160MHXGA and RC160MHXEA. The 14 kW RC140MHXGA sits as a mid-to-high capacity option, making it suitable for larger detached homes or properties with lower insulation levels that require higher flow temperatures than smaller units can provide.
For heating engineers, the monobloc design of the RC140MHXGA removes the requirement for F-Gas certification for the primary installation, as no refrigerant pipework is handled on-site. However, installers must ensure that external water pipework is correctly insulated and protected against freezing. The unit's control logic is designed to integrate with Samsung’s proprietary control systems, though it can be adapted for various system architectures.
When specifying the RC140MHXGA, engineers should consider the hydraulic requirements of the system. While the unit provides a 14 kW nominal output, the actual performance will vary based on outdoor ambient temperatures and the required flow temperature. Ensuring the system has the correct minimum flow rate and, where necessary, a buffer tank or volumiser, is essential for preventing short-cycling and ensuring the longevity of the compressor. This unit provides a reliable solution for transitioning larger UK homes to low-carbon heating technologies.
Common questions from engineers and homeowners about the Samsung Air to Water Heat Pump - Mono Control Unit.
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Specifications on this page are extracted from the manufacturer brochure. Always cross-check against the latest datasheet before commissioning or quoting. Last updated 30 April 2026.