SERVICE MANUAL
13
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12 Volts DC Electrical Connection
A 12 volt DC supply connection is only necessary if the refrigerator
is to be operated in DC mode. Both the AC and GAS modes
operate without a need for 12 volts. If the 12 volt connection is
required, verify:
■
The positive wire from the battery is connected to the RED wire
leading to the terminal marked “12V (+) on the terminal block.
■
The negative wire from the battery is connected to the BLACK
wire leading to the terminal marked “12V (-) on the terminal
block.
■
See wiring diagram at the end of this section. Both negative and
positive supply wires require 1/4” female quick connect termi-
nals.
See Fig. 10 for supply wire and fuse sizing. The wire size is
determined by the DC load (heater draw) and the distance the
current must travel from the battery. Should the wire size be too
small, a resulting voltage drop reduces the heater wattage and the
cooling capacity in the DC mode. The refrigerator is designed to
operate at full cooling capacity, unlike other RV refrigerators which
operate at a reduced capacity to conserve battery drainage. The
DC heating element has a continuous current rating of 11.7 amps
@ 12VDC.
■
Make sure an in-line fuse is installed on the DC positive wire,
as near the battery as possible, between the battery and the
terminal block of the refrigerator.
WARNING:
This in-line fuse is necessary for added
safety, even though the refrigerator has a DC fuse in the
control assembly.
Distance
Min. Wire Size
Max. Fuse Size
0-20 feet
12 AWG
20 AMP
over 20 feet
10 AWG
20 AMP
Fig. 10 - Wiring and Fuse Size Table
!
Electrical Connections, cont’d.
Preventative Maintenance
An annual maintenance check is strongly recommended:
■
Leak test the gas lines.
■
Check combustion seal; repair or replace, if necessary (Visual
check without removing the refrigerator.).
■
Inspect or clean the burner or burner ori
fi
ce.
■
Check/adjust the electrode spark gap.
■
Insure the Thermocouple tip is clean and secure in the burner
bracket.
■
Check/adjust AC and DC voltages and LP gas supply pressure.
■
Check the Gas Safety Valve (see the “Test the Gas Safety
Valve” section of this manual).
■
Insure that area around the burner and controls is free of de-
bris, oily rags, etc.
■
Inspect the controls, piping and wiring to insure that they are in
good condition.
THESE MAINTENANCE PROCEDURES MUST BE PERFORMED BY A
QUALIFIED SERVICE PERSON.
NORCOLD CANNOT ACCEPT RESPONSIBILITY FOR REPAIRS,
ADJUSTMENT, OR MAINTENANCE PERFORMED BY OTHER THAN A
QUALIFIED DEALER OR SERVICE CENTER.
Gas Flame Appearance
While in propane gas operation, examine the appearance of the
gas
fl
ame:
■
Open the lower intake vent.
■
Turn the gas control to the HI position.
CAUTION:
The burner box cover can be hot. Wear
gloves to
avoid burns.
■
Open the burner box door and look at the gas flame:
■
The
fl
ame should be a darker blue inside and a lighter blue
outside and should be a constant and steady shape.
■
The
fl
ame should not be yellow and should not have an er-
ratic and unstable shape.
■
Make sure the
fl
ame does not touch the inside of the
fl
ue
tube.
■
Close the burner box door.
■
The burner orifice should be cleaned as part of routine main-
tenance. Follow the Remove and Clean Burner Orifice instruc-
tions. If the flame is not at peak performance after it has been
cleaned, contact Customer Service.
!
