Advent ACTH12 Operations Instructions download pdf (Page 5)

front-to-back is acceptable.

C. POST LOCATION SELECTION:

1. Check for obstructions in the area where air conditioner / heat pump will be installed.

A minimum clearance of 18” is required for the rear section of the air conditioner / heat

pump to any other roof mounted object.

2. The roof must be capable of supporting 100 lbs while the RV is in motion. Normally,

a 200 lb. static load design will meet this requirement.

3. ROOF PREPARATION

A. EXISTING ROOF VENT REMOVAL:

1. Unscrew and remove the roof vent.

2. Remove all caulking compound around opening.

3. Seal all screw holes and seams where the roof gasket will be located. Use a good

grade of all weather sealant.

B. NEW OPENING:

1. A 14-1/4" x 14-1/4"±1/8” opening must be cut through the roof and ceiling of the RV.

It is recommended this opening be located between roof framework.

2. Mark a 14-1/4" x 14-1/4" square on the roof and carefully cut the opening.

3. Using the roof opening as a guide, cut the matching hole in the ceiling. See FIG.4.

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Advent ACTH12 Operations Instructions Page 5