AE120JXYDEH

Engineer's overview

The Samsung EHS Mono 16kW is a high-capacity monobloc air-source heat pump designed for larger UK properties requiring significant heat loads. As a monobloc system, the refrigerant cycle is entirely contained within the outdoor unit, meaning no F-Gas certification is required for the hydraulic connection to the internal heating circuit, though F-Gas rules apply to leak checking. The unit measures 1420mm in height and 940mm in width, weighing 108kg, which necessitates a stable, level base for installation.

Performance is driven by an inverter compressor that modulates output based on demand. At an outdoor temperature of 7°C and a flow temperature of 35°C, the unit achieves a COP of 3.71. For colder conditions, the capacity at -7°C is rated at 8.4kW. The system is capable of reaching a maximum flow temperature of 55°C, making it suitable for both underfloor heating and correctly sized radiator circuits. It carries an ErP rating of A++ at 35°C and A+ at 55°C.

Electrical requirements for the single-phase AE160JXYDEH model include a 230V supply and a 40A MCB. The three-phase AE160JXYDGH variant is also available for commercial or high-load residential sites. Hydraulic integration requires a minimum water flow rate of 16 litres per minute, with 25.4mm pipe connections. The system operates between a minimum pressure of 0.3 bar and a maximum of 2.8 bar. Control is typically managed via the MIM-E03AN control kit, which supports weather compensation to optimize efficiency based on ambient temperatures.

Maintenance must be performed every 12 months to ensure continued efficiency and validity of any manufacturer warranties. Key service steps include checking the water pressure, cleaning the internal water filter, and inspecting the line strainer. Engineers must also verify the glycol concentration and pH levels annually to prevent internal corrosion or freezing. The unit includes a reverse cycle defrost method to manage ice build-up on the evaporator during winter operation.

For diagnostics, the Samsung EHS Mono utilizes a comprehensive set of numeric fault codes. Common errors include code 101 for communication issues between the control kit and outdoor unit, and code 911, which indicates a flow switch error where the signal remains off while the pump is active. These codes allow for precise troubleshooting of sensors, communication lines, and hydraulic components.