Applications

Installation types

The Dimplex LI ME air source heat pump is suitable for the following types of application:

Domestic – The LI ME uses a single phase electricity supply, making it suitable for installation in UK homes. It is best suited for installation in utility rooms or integral garages.

Non domestic – for light commercial applications with low heat load demands (i.e. up to 11kW).

Multiple heat pumps can be installed in parallel if required. Alternatively the LI 11-28 TE range provides higher outputs.

Heating system types

The Dimplex LI ME air source heat pump is suitable for use with the following types of heating distribution system:

Underfloor heating – the ideal choice for use with a heat pump. The larger heating surface area available allows lower water temperatures to be used (i.e. 35ºC - 45ºC), helping to improve the efficiency of the heat pump system.

Radiators – The LI ME has a maximum water output temperature of 58ºC, making it possible for use with radiators providing the radiators are correctly sized.

Boiler systems usually run at much higher water output temperatures (75ºC +), therefore for lower water temperatures produced by a heat pump, the size of each radiator has to be approximately doubled to enable the same level of heat output.

Domestic hot water

Stored hot water – when used with a correctly sized Dimplex hot water cylinder, the LI ME can produced stored water temperatures of approximately 50ºC. Where there is a requirement to store water at higher temperatures, this can be boosted with a supplementary electric heating element installed in the water cylinder and controlled by the heat pump WPM controller.

Cooling

The LI ME air source heat pump cannot be used for cooling.