Commissioning
HyCassette-Geko
107
PR-2015-0159-GB • Subject to modifications • R1-11/2015
7.3
Vent the unit
To ensure that the exchanger is charged with heating/cooling medium, it must be
air vented.
•
Open all shut-off and control valves.
•
Use the air vent key to open the first air vent screw (see Fig. 7-4).
•
Close the air vent screw again when only heating/cooling medium is still pour-
ing out.
•
Proceed in the same way with all remaining air vent screws. Depending on the
unit model, there are additional 2 or 4 air vent screws.
7.4
Checking the condensate drain
This test point does not apply to only heating units.
Condensate forms as a result of unit operation in cooling mode, the same applies
to non-insulated pipes. Check
•
that the connection hose of the condensate tray is laid so that condensate can
drain freely.
NOTICE!
Protect electrical hardware and furniture from escaping splash water.
Fig. 7-4:
Air venting heat exchanger