Dometic RM 2801 Service Manual download pdf (Page 84)

AES MODELS

RM3601

3801

MODULEBOARDREPLACEMENT

D U O- THERM

Refrigerator

Bulletin

R59/7A

May 1987

NOTE:

Please take full consideration of the following

information BEFORE replacing module boards due

to faulty 12 volt cooling operation.

This Bulletin clarifies the 12 volt DC start-up and cooling

operation.

Each time the tag line is energized and 12 volt cooling is

selected, the module board must receive approximately 13.6

volts for about 40 or more seconds.

At that time the

unit

will engage

the 12

volt heating element. If

the

initial

required

13.6

volts is not achieved (due

to demands of other 12

volt devices) the AES will

not

switch to 12 volt

operation,

and will operate

instead on L.P. gas until the

13.6 volt threshold is reached.

If during 12 volt cooling,

supply voltage should drop below

approximately 11.6 volts (FIG. 2), the DC cooling will shut

down and the AES system will go into a 25 minute delay (FIG.

3). This allows the supply voltage to re-establish itself.

To view the delay, push the button identified with a question

mark

q and the clock indicator light

will come on.

NOTE:

If 13.6 volts is not recovered during the delay the AES

system will then switch to gas operation until the supply voltage

recovers.

If during the 25 minute delay the 13.6 threshold

voltage is recovered, the delay will be deleted and 12 volts DC

cooling will resume.

FIG.

FIG. 2

AES CONTROL PANEL ON REFRIGERATOR

FIG. 3

As with all AES refrigerators, minimum voltage for any

operation is 10.5 volts DC at the terminal block.

FIG. 4

IGN

LOCK

---

A-l1-9

Manual Compliments of

Northwest RV Supply

Printed From

http://www.nwrvsupply.com

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