infrasave SchwankAir 3500 Series, Installation, Operation And Maintenance Instructions

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For units with water heating:

Check for water leakage; if this should be the case,
then switch off the unit so that it is electrically dead and
repair the leakage.

Check whether the water piping system contains air; if
necessary, vent the air out of the system.
See also:
6.2 Cleaning the unit
6.3.2 Annual maintenance

Carry out all monthly checks.

Check the wiring between the terminal boxes in the
units and the control unit.

Inspect the casing, the suspension or mounting
structure, and the securing of each unit.

Check that the fans are firmly attached and are not
rotating out of true; if necessary, refasten them.