Panasonic WH-MXF09D3E8 Service Manual

Also see for WH-MXF09D3E8: Design handbook Installation manual Installation manual Operating instructions Operating instructions

Contents

Panasonic WH-MXF09D3E8 Service Manual Manual pdf 69 page image

6915. Maintenance GuideIn order to ensure optimal performance of the unit, seasonal inspections on the unit, external filter and field wiringhave to be carried out at regular intervals. This maintenance should be carried out by authorized dealer.1. Water pressureWater pressure should not lower than 0.05 MPa (with inspects the pressure gauge). If necessary add tapwater into tank unit. Refer to tank unit installation instruction for details on how to add water.2. Pressure relief valve Take out the cover with remove the mounting screw for access to the pressure relief valve. Check for correction operation of pressure relief valve by turn up the lever to become horizontal. (Referto figure of “Pressure relief valve”) If you do not hear a clacking sound (due to water drainage), contact your local authorized dealer. Turn down the lever after checking finish. In case the water keeps drained out from the unit, switch off the system, and then contact your localauthorized dealer. Reinstall the cover with tighten the mounting screws properly, if the pressure relief valve is functioningnormal.3. Air purge valveAir purge valve must be installed at all high points in a closed water circuit system.An automatic air purge valve is provided inside the indoor unit. To automatically purge the air from thesystem, turn the plug on the air outlet anticlockwise by one complete turn from fully closed position.Excessive air is automatically purged if the plug is kept in this position.4. RCCBEnsure the RCCB set to “ON” condition before check RCCB.Turn on the power supply to the Mono bloc unit.This testing could only be done when power is supplied to the Mono bloc unit.WARNINGBe careful not to touch parts other than RCCB test button when the power is supplied to Mono bloc unit. Else, electrical shock mayhappen. Push the “TEST” button on the RCCB. The lever would turn down and indicate “0”, if it functions normal. Contact authorized dealer if the RCCB malfunction. Turn off the power supply to the Mono bloc unit. If RCCB functions normal, set the lever to “ON” again after testing finish.