Hayward AccessLine HP3051DT3HM, Installation Instructions Manual

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5. MAINTENANCE AND WINTERISATION
5.1 Maintenance
These maintenance operations must be carried out once a year to guarantee
the heat pump’s life-span and serviceability.
• Clean the coil using a soft brush or a water or air jet ( Warning, never use
a high pressure cleaner ).
• Check that the condensate drains are working well.
• Check that the hydraulic and electrical connections are secure
• Check the coil’s hydraulic seal.
The heat pump must be disconnected from any electrical power source
before any maintenance operation can be carried out. Maintenance
operations must only be carried out by a qualified engineer, authorised
to handle refrigerants.
Any damage caused by poor winterisation invalidates the warranty.
5.2 Winterisation
• Switch the heat pump to “OFF” Mode.
• Turn off the power supply to the heat pump.
• Drain the coil to avoid any risk of deterioration. (High risk of freezing).
• Close the by-pass valve and unscrew the inlet/outlet union connections.
• Drain as much of the residual stagnant water as possible from the coil
using a blow gun.
• Close the water inlet and outlet on the heat pump to stop foreign bodies
entering.
• Cover the heat pump with a winter cover (not supplied).