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Filling & Venting the Modul-AIR & Green Comfort
Follow the steps below to Fill and Vent the
system in the correct order:
1. Ensure all system valves are open fully.
2. Fill the system using the incorporated
filling loop to the recommended
pressure (min 1.5 bar – max 2.0 bar).
While filling the system, air should be released
via the manual or automatic air vents within the
system.
During the filling process it is important to
release air from the heat pump and Green
Comfort module. There are manual air vents
incorporated in both units.
3. Ensure the system is watertight.
Follow the steps below to Flush the system in the
correct order:
1. Connect the fill & flush pump to the fill &
flush valve (as shown).
It is important to connect the feed hose from the
fill & flush pump to Valve A and the drain hose to
Valve B. This ensures the water flows through the
Heat Pump first and then out to the open circuit. It
also ensures that any trapped air in the Heat Pump
and/or the open circuit is pushed back to the fill
& flush pump’s reservoir and expelled from the
system.
2. Valve C is turned to the closed position (90°
to the pipe direction). Open valves A and B
and switch on the fill & flush pump.
3. Water is circulated through the system for a
minimum of 45 minutes.
The fill & flush valve MUST be connected on the ”return” pipe to the
Green Comfort. Refer to the system schematics for more information.
AB
C
A
B
C
Water
flow
Water
flow
Water
flow
Water
flow
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