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VRF180913 Rev. A
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VII. MAINTENANCE
PREVENTATIVE MAINTENANCE
No scheduled preventative maintenance is required for the VRF II Series units when properly applied and
installed correctly. There is no cleaning required for the unit before or during installation.
If the cover is removed after the unit has been in service, it is recommended to replace the gasket to prevent the
ingress of water or dust. At a minimum the gasket should be inspected for folds, cracks, and tear.
VIII. TROUBLESHOOTING
SYMPTOM
POSSIBLE CAUSE
SOLUTION
Auxillary Relay is
De-energized
Main relay is de-energized
Supply voltage is not
within manufacturer
recommended range
Connect unit to
recommended power
supply and recheck both
relays operations
Main relay is energized or
de-energized
Unit lost calibration or
the unit’s electronic has
hardware failure
Replace Electronics inside
the unit
Summary of Contents for VRF II Series
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