Carrier WEATHERMASTER 48/50Z030-105 - Manual (Page 168)

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APPENDIX D — VFD INFORMATION (cont)
3. The housing that holds the fan in place has barbed retain-
ing clips at each corner. Press all four clips toward the
center to release the barbs.
4. When the clips/barbs are free, pull the housing up to re-
move from the drive.
5. Disconnect the fan cable.
6. Install the fan in reverse order, noting the following: the
fan airflow is up (refer to arrow on fan); the fan wire
harness is toward the front; the notched housing barb is
located in the right-rear corner; and the fan cable connects
just forward of the fan at the top of the drive.
To replace the internal enclosure fan for frame sizes R5 or
R6, perform the following:
1. Remove power from drive.
2. Remove the front cover.
3. Lift the fan out and disconnect the cable.
4. Install the fan in reverse order.
5. Restore power.
CONTROL PANEL CLEANING — Use a soft damp cloth
to clean the control panel. Avoid harsh cleaners which could
scratch the display window.
BATTERY REPLACEMENT — A battery is only used in as-
sistant control panels that have the clock function available and
enabled. The battery keeps the clock operating in memory
during power interruptions. The expected life for the battery is
greater than ten years. To remove the battery, use a coin to
rotate the battery holder on the back of the control panel.
Replace the battery with type CR2032.
Fig. F — Internal Enclosure Fan Replacement
A48-7716