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Closet installation
Prior to installing the air handler make sure holes are cut into the floor for refrigerant tubing, drain line, electrical wiring,
and control wiring.
1. Remove the top shipping cover and corner posts.
2. Remove the bottom shipping cover.
3.
Remove the blower and control box access panel (door).
4. Remove the coil compartment access panel (door).
5. Place the unit into position by sliding the unit over the duct opening until the opening in the unit lines up with the duct
opening in the floor.
6. Secure the unit to the floor by drilling two holes through the air handler base at the left and right front inside corners of the
cabinet. Use two screws to secure the unit to the floor.
7.
Use calking, sealers, and/or tape to seal between the floor base and the opening on the unit or between the opening on the
unit and the duct in the floor.
8. Connect the electrical supply wires and the control wires in the control box.
9. Connect the refrigerant lines to the coil. DRY NITROGEN MUST BE FLOWED THROUGH REFRIGERANT LINES DURING
SOLDERING OPERATION.
10. Re-install the coil compartment access panel (door) and secure with the screws that were removed in step 3.
11. Re-install the blower and control box access panel (door) and secure with the screws that were removed in step 2.
DB68-11271A-02_IM_CAC Universal AHU Indoor_AA_EN_.indd 13
English
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2022-09-15 오전 9:53:16
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