Dometic RM 2801 Service Manual download pdf (Page 26)

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Another significant change in the third

generation A.E.S. system is how the 12 volt

heating element mode operates. As with the

first and second generation series, the 12 volt

heating element circuit is energized by the

ignition lock terminal. This terminal receives

its DC voltage from a wire that runs from the

run side of the vehicle’s ignition switch to the

refrigerator’s ignition lock terminal. This

allows the 12 volt heating element to be

energized only when the RV is traveling down

the road.

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TAG LINE ENERGIZED

When the ignition lock terminal is energized

by the ignition key, the printed circuit board

must see at least 13.3 volts DC for a period of

40 seconds before the system will activate the

12 volt DC heating element.

VOLTAGE

---)

13.3 V.D.C.

(FOR 40 SEC. MIN.)

12V ELEMENT

ENERGIZES

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If 13.3 volts is not achieved in this time frame,

the electronics will light the LP gas burner and

the refrigerator will operate on the LP gas

mode.

LOWER THAN 13.3 V.D.C. =

L.P. GAS

OPERATION

A-6-19

Manual Compliments of

Northwest RV Supply

Printed From

http://www.nwrvsupply.com

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Dometic RM 2801 Service Manual Page 26