Engineering Manual

How to Use / How to Install
Base Heater PAC-SJ20BH-E
1 Preparation
2 Preparation for mounting the base heater
It is easier to mount the base heater before installing the outdoor unit.
• Make sure that the main power supply to the unit is OFF.
• Do not lose the removed screws. Many screws will be removed to install the base heater.
• Eliminate dust, dirt, etc.
Before mounting the base heater, follow the procedures
below to remove some parts from the outdoor unit.
Removal of service panel
Remove 3 screws on the front. Slide the service panel
downward to remove it.
Removal of top panel
Remove 2 screws on the front and 3 screws on the back.
Lift the top panel up to remove it.
Removal of screws for cover panel
Remove 2 screws for the cover panel.
Removal of front panel
Remove 7 screws on the front. Slide the front panel
upward, and pull it toward you.
Removal of fan
Remove the mounting screws for the fan. Pull the fan
toward you to remove it.
Removal of motor support
Disconnect the connector of the fan motor, and remove
2 mounting screws for the motor support. Slightly pull the
motor support toward you and lift it up to remove it.
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