joule HHH-AEHP-00001, Installation & Maintenance Manual

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Modul-AIR Exhaust Air Heat Pump Installation Guide
Filling & Venting Modul-AIR
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. There is a manual air vent
on the top of the unit.
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 Heating
Circuit. It also ensures that any trapped air in the
Heat Pump and/or the Heating 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
Heat Pump. Refer to the system schematics for more information.
A B
C
A
B
C
Water
flow
Water
flow
Water
flow
Water
flow