Maintenance; Wintering - Polytropic Elite R290 Xs Betriebsanleitung

MAINTENANCE

Before any maintenance operation, the heat pump must be completely stopped for few minutes be-
fore connecting pressure controllers. This is because high pressure and temperature inside the heat
pump could be harmful.
Please check the following on a monthly basis:
• Check and clean the evaporator (with a soft brush or water jet).
• Do not use high pressure cleaner.
• Check all electrical and ground connections.
• Check that all electrical connections and terminals are securely connected.
• Check gas pressure (when heat pump is stopped, manometer must indicate a pressure higher
than 0.5)
Please check the following points yearly:
• Check settings.
• Check securities.
• Check all electrical connections and ground.
• Check condenser cleanliness.
• Use soft soap and water to clean the heat pump casing, do not use solvents.

WINTERING

1. Turn off the power supply to the HP
2. Fully open the bypass valve and close the HP inlet and outlet valves.
3. Unscrew the junctions to
evacuate all the water
contained in the HP.
Open valve
4. Reconnect and slightly tighten
the junctions by hand to prevent
the introduction of foreign ob-
jects.
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Half-open valve
5. Place the provided wintering
blanket over the HP.
Closed valve