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Page: 4 of 15
Pre-Commissioning Checks
Prior to Filling with water
A: Ensure the heat pump is installed in accordance with the installation manual.
B: Ensure the power is isolated to the unit.
C: Remove the side cover of the unit to expose the water pump, compressor and electrical enclosure.
D: Check the pre-charge of the expansion vessel is set to 1 bar.
Filling the System with Water
Thoroughly ush the system with a ushing cart or suitable mains pressure, until there is no sign of air returning
through the primary feed pipes. This will remove most of the air from the system. Now pressurise the system to
1 Bar on the heat pumps pressure gauge. The heat pump has a pump run switch on the terminal PCB under the
side cover of the heat pump. This allows the circulation pump to be run manually to help fully vent the system
of air. Ensure the automatic air vents in the system are open.
Pre-Commissioning
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