Norcold 442 Installation And Operating Instructions Manual

Also see for 442: Parts list Parts list Repair guide

Contents

Norcold 442 Installation And Operating Instructions Manual Manual pdf 18 page image

is not being used for storage. Keep the refrig-erator area clear and free from combustiblematerials, gasoline, and other flammable va-pors and liquids.9. Periodically inspect the ventilation system. Theair passage from the bottom intake vent to therefrigerator coils and from the refrigerator coilsthrough the upper exhaust vent must be unob-structed.10. Inspect combustion seals (visual check withoutremoving the refrigerator). Combustion sealsare attached the back surfaces of the refrigera-tor’s mounting flanges and must be continuousbetween the wall and the mounting flanges toassure a complete combustion seal.11. Periodically inspect door seals. See "CheckingDoor Seals" below.Checking Door SealsTo insure cooling efficiency and to prevent frost for-mation, the door gasket must seal completely.To check for proper door seal, lay a strip of paperbetween the gasket and the refrigerator. Close thedoor and withdraw the paper. A frictional drag shouldbe noticed. Repeat all around the door. If the paperdoes not have a noticeable drag, the gasket is notsealing. Contact your dealer or a Norcold servicecenter for corrective procedures.Refrigerator StorageWhen the refrigerator will not be in use for an ex-tended (seasonal) period of time, it is recommendedthat all power to the refrigerator be disconnected. Un-plug the refrigerator’s AC power cord from the wallreceptacle and disconnect the 12 volt DC from therefrigerator’s terminal block located at the rear of therefrigerator. Clean the refrigerator interior and leavethe door(s) open to keep the interior odor free. Afterthe extended shut-down period, the burner, burnerorifice, and flue must be inspected before igniting theburner flame. These areas must be free from dust,spider webs, or other obstructions which might re-strict the combustion system.Burner Flame InspectionThe efficiency of your refrigerator while operating inthe gas mode is independent upon the correct burnerflame. The burner flame provides energy to the re-frigerator’s cooling system.The burner flame efficiency is a function of correctinput gas supply pressure, air input, and burner andburner orifice cleanliness.A visual check of the burner flame should be maderegularly. The flame should be sharp blue with a sta-ble burning appearance (Figure 22). If there is a con-stant yellow component observed or if the flame ap-pears erratic or unstable, switch the refrigerator toelectric or turn the refrigerator "OFF" and contactyour dealer or a Norcold service center.Refrigerator Removal and Replacement1.1. Turn off the gas at the main supply tank(s).2. Turn the refrigerator off.3. Turn the refrigerators manual shut-off to off.4. Disconnect the refrigerator’s AC power cordfrom the wall receptacle.5. Disconnect the 12 volt DC supply from the re-frigerator’s terminal block.6. Disconnect the LP gas supply line from the re-frigerator.7. Remove the mounting screws securing the re-frigeratoror to the enclosure.8. Remove refrigerator form the enclosure.To Reinstall the Refrigerator:1. Before reinstalling the refrigerator, inspect theareas behind the mounting flanges for dam-aged or missing seal strips (combustion seals).These seal strips serve as a combustion sealwhich isolates the living space of the vehicleform the refrigerator’s combustion system.2. Reinstall the refrigerator by reversing the aboveprocedures.3. After reinstalling the refrigerator, check the gasfitting connections for leaks. Do not check forleaks with an open flame. Use an approvedleak-detection solution.Figure 2218