RENEWABLE HEATING - AIR SOURCE - INDOOR

Suitability

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 L11 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.