Dometic RM2811 Manual do Utilizador descarregar pdf (Página 3)

Installing the Channel Mark 6, Model

12E,

rated 25 MA

can result in failure to ignite on gas if the DC power

supply is below 12.5 volts DC. The reignitor will see low

voltage and not produce a spark, resulting in flame

failure lockout.

Installation of the Channel Products, Inc., Gasliter

Mark 6, Model

12E,

will VOID the Warranty on the

refrigerator.

Electrode

First, do a visual check for cracks or breaks on the

ceramic insulator. Verify the mounting bracket is

attached properly to the electrode. If either of the

above is found, replace the electrode. The spark

gap must be set at three sixteenths

(3/16”)

of an

inch and tip of electrode above

burner as shown below.

the slots in the

ELECTRODE

BURN

The Solenoid Valve

receives DC power when the

AMES/AES

control selects LP gas operation. The

solenoid coil opens an internal valve seat and

allows gas to follow to the main orifice.

Check the solenoid valve with a properly cali-

brated ohm meter. Remove one of the connectors

from the solenoid and measure the resistance

across the terminals. The proper reading would

be 44-53 ohms.

Hook a manometerto the test port. With DC power

supplied to the solenoid terminals, a gas pressure

reading of 11-12 inches of water column should

be present. If no pressure or low pressure is

present at the test port, the gas solenoid is defec-

tive and should be replaced. NOTE: Verify the LP

gas system pres-

sure before replac-

ing a valve with low

pressure.

The Power Module

monitors the DC and AC

power supplied to the refrigerator. It coordinates

the operation between DC, AC and gas in con-

junction with the setting of the display panel.

Check the fuse(s) under the cover on the power

module for continuity. Replace with same size if

bad. Inspect for a loose relay and Plug 3 (P3) on

the board. If loose, replace board. See FIG. 6.

When the refrigerator requires additional cooling,

the power module will send DC voltage to the

solenoid and reignitor. The trial-for-ignition will

last for 45 seconds and at the end of this period,

the check light will come on if there is no flame.

NOTE: When the thermocouple output is between

7-l 3 millivolts DC, the DC voltage to the reignitor

will be turned off. If the flame is extinguished, the

power module will not supply DC power to the

reignitor until the millivolts DC drop to 7-13

MVDC. It may take 1 O-l 5 seconds for the thermo-

couple to cool.

The PAL@ Tester will allow for proper testing of

the integrity of the upper and lower circuit cards.

The

PAL@

Tester is available from your

Dometic

parts distributor. See “G.

Control Panel”.

FIG.

G. Control Panel

1) With the main ON/OFF switch on the control

panel in the OFF position:

Check for DC voltage at Plug 1

(P1)

Terminal 4

of lower circuit board. See FIG. 6.

If no voltage, check the fuse condition on lower

circuit board. Replace if blown. Check for DC

between J4 and

J10 on the lower circuit board.

If fuse is good and there is DC voltage at J4,

remove and replace lower circuit board. See

FIG. 6.

Manual Compliments of

Northwest RV Supply

Printed From

http://www.nwrvsupply.com

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