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Manafacture: Dometic File size: 173.59 kb File name: f46b02bb-5a5e-4fa7-876d-cd5e517242fb.pdf Language of manual:

Roof Preparation 1. Opening Requirements - Before preparing the ceiling opening, read all of the following instructions before beginning the installation. If a roof vent opening will not be used a 14-1/4" x 141/ 4" (±1/8") opening must be cut through the roof and ceiling of the RV. This opening must be located between the roof reinforcing members. There may be electrical wiring between the roof and the ceiling. Disconnect 120 volt AC power cord and the positive (+) 12 volt DC terminal at the supply battery. Failure to follow this instruction may create a shock hazard causing death or severe personal injury. The 14-1/4" x 14-1/4" (±1/8") opening is part of the return air system of the Air Conditioner and must be finished in accordance with NFPA Standard 501C Section 2.7.2. 2. Roof Vent Removal a. Unscrew and remove the roof vent. b. Remove all caulking compound around opening. c. Seal all screw holes and seams where the roof gasket is located. Use a good grade of all weather sealant. See FIG. 5. FIG. 5 d. If the opening exceeds 14-3/8" x 14-3/8", it will be necessary to re-size the opening to 14-1/4" x 14-1/4" (±1/8"). e. If the opening is less than 14-1/8" x 14-1/8", it must be enlarged. 3. New Opening- (Installation Other Than Vent Opening) a. Mark a 14-1/4" x 14-1/4" (±1/8") square on the roof and carefully cut the opening. b. Using the roof opening as a guide, cut the matching hole in the ceiling. c. The opening created must be framed to provide adequate support and prevent air from being drawn from the roof cavity. Lumber 3/4" or more in thickness must be used. Remember to provide an entrance hole for power supplies at the front of the opening. See FIG. 6. FIG. 6 Do Not Cut Roof Structure Or Rafters Good-Rafters Supported By Cross Beams Good Location- Between Roof Rafters Frame Opening So It Won't Collapse When Bolting Down Unit Leave Access For Power Supply Wiring 15" Min. At Front of opening 3/4" Min. It is the responsibility of the installer of this air conditioner system to ensure structural integrity of the RV roof. Never create a low spot on the roof where water will collect. Water standing around the air conditioner may leak into the interior causing damage to the product and the RV. CAUTION 5 600312 & 600315 Series Installation Instructions 600312 & 600315 Series Installation Instructions Wiring Requirements 1. 120 VAC Supply Line Route a copper 12 AWG, with ground, 120 VAC supply line from the time delay fuse or circuit breaker box to the roof opening. a. This supply line must be located in the front portion of the 14-1/4" x 14-1/4" (±1/8") opening. b. The power MUST be on a separate 20 Amp time delay fuse or HACR circuit breaker. c. Make sure that at least 15" of supply wire extends into the roof opening. This ensures and easy connection at the junction box. d. Wiring must comply with all National, State and Local Wiring Codes. e. Use a steel sleeve and a grommet or equivalent methods to protect the wire where it passes into the ope...

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