User manual DOMETIC PENGUIN HP INSTALLATION

[. . . ] When you see this symbol in this manual, be alert to the potential for personal injury. The ability of the air conditioner to maintain the desired inside temperature depends on the heat gain of the RV. Some preventative measures taken by the occupants of the RV can reduce the heat gain and improve the performance of the air conditioner. During extremely high outdoor temperatures, the heat gain of the vehicle may be reduced by: 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. 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"). If the opening is less than 14-1/8" x 14-1/8", it must be enlarged. Mark a 14-1/4" x 14-1/4" (±1/8") square on the roof and carefully cut the opening. Using the roof opening as a guide, cut the matching hole in the ceiling. The opening created must be framed to provide adequate support and prevent air from being drawn from the roof cavity. 6 Do Not Cut Roof Structure Or Rafters 3/4" Min. 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. 5. Good-Rafters Good LocationSupported By Between Roof Cross Beams Rafters Frame Opening So It Won't Collapse When Bolting Down Unit Leave Access For Power Supply Wiring 15" Min. At Front Of Opening CAUTION It is the responsibility of the installer of this air conditioner system to ensure structural integrity of the RV roof. Water standing around the air conditioner may leak into the interior causing damage to the product and the RV. 5 630025. 331 Installation Instructions D. 1. Wiring Requirements 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. This supply line must be located in the front portion of the 14-1/4" x 14-1/4" (±1/8") opening. The power MUST be on a separate 20 Amp time delay fuse or HACR circuit breaker. Make sure that at least 15" of supply wire extends into the roof opening. Use a steel sleeve and a grommet or equivalent methods to protect the wire where it passes into the opening. 4. This box contains mounting hardware for the air conditioner and will be used inside the RV. Minor adjustments can be done from the inside of the RV if required. F. Installing The Air Conditioner Remove air box and mounting hardware from carton. The upper duct is shipped inside the lower duct which is part of the ceiling template. [. . . ] If your unit fails to operate or operated improperly, check the following before calling your service center. If RV connected to motor generator, check to be sure motor generator is running and producing power. If RV connected to power supply by a land line, check to be sure line is sized properly to run air conditioner load and it is plugged into power supply. If the outside temperature is below 40° F the Ambient Thermostat will prevent operation of the compressor until the temperature is above 45° F. [. . . ]