Dometic AES Service Manual (2134KB) - Bryant RV Services

As seen in the chart on page A-6-26, thegauge of wire required to the positive andnegative connections on the terminal block willdepend on the size of the refrigerator and thelength of wire run from the house battery tothe terminal block. This 12 volt circuit must befused. The maximum fuse size should be 30amps.(see page A-6-26)Be sure that a separate negative wire leadcoming directly from the battery is connectedto the negative terminal on the refrigeratorand that a frame or chassis ground is not usedas a substitute. Be certain that no other 12 voltequipment or lighting is connected to therefrigerator circuit. For the refrigerator tooperate properly on any heat source, theterminal block must receive between 10.5 and13.5 volts DC.(see page A-6-27)(82)If any other technical information is neededwhen diagnosing or repairing any 12 voltcircuit problem the technical data sheet cangive you other beneficial information, such asheater wattages and amperage draws. (Referalso to Service Bulletin 28).(see page A-6-28)(83)Please note that if a battery converter is usedas the sole DC power source, the refrigeratorwill not operate properly. The pulsating DCpower created by the converter will confusethe electronic circuitry into erratic operationand possible printed circuit board failure.When a battery converter is utilized in theinstallation, the circuit must be wired as shownin the diagram on page A-6-29.(see page A-6-29)A-6-25