LI TER+ air source heat pumps utilise the WPM 2007 Plus integrated heat pump manager, which monitors, regulates and controls the entire heating system. The heat pump, heating/cooling and hot water circulation pumps for up to 3 individually programmable circuits, mixer motors, any supplementary heating sources and defrost cycle are all automatically activated by the heat pump manager, allowing the heat pump to provide maximum flexibility, control and efficiency.

Key features

• Removable control panel for convenient remote positioning
• Simple 6 key operation
• Large, well laid out illuminated display
• Dynamic menu based programming, customised to the configuration of the heat pump – settings that are not required are hidden
• Interface for remote control unit with identical menu options
• Individual time / temperature controlled operation over 3 separate heating/cooling circuits, including production of domestic hot water
• Weather compensated water flow temperature control
• Automatic actuation of supplementary heat sources (electric immersion heater or oil / gas boiler)
• Automatic actuation of mixer valves for supplementary heat generators (gas/oil boiler or solar energy storage system)
• Diagnostics system for monitoring important heat pump functions

Integration with existing systems

The WPM controller also allows Dimplex heat pumps to be efficiently integrated in “bi-valent” mode with existing systems. When combined in parallel with an existing boiler, the heat pump manager regulates the boiler operation in accordance to need and ensures that no excessive temperatures can enter the heating system.
This provides Dimplex heat pumps with an excellent opportunity to be installed in existing homes and buildings alongside legacy heating systems.

Integration with other renewables.

For optimal integration of renewable heat sources, the WPM heat pump manager offers an operating mode developed especially for this purpose. Heat from solar thermal systems or biomass boilers can be fed into a “renewable energy” cylinder fitted with an additional heat exchanger which, at a sufficient temperature level, gives priority to this energy for heating or hot water, over riding the operation of the heat pump.