Exhaust Vent; Roof Cap; Propane Gas Connections; Leak Test-Detergent - Norcold 2118 Manual De Servicio

Ventilation, cont'd.

Exhaust Vent

Warm air and combustion gases flow out of the enclosure through
the exhaust vent. The exhaust vent can be either a roof exhaust
vent [12] or an upper sidewall exhaust vent.
The roof exhaust vent has a non-removable metal mesh screen
to prevent leaves, birds, rodents and/or debris from entering the
enclosure.

Roof Cap

The roof cap [319] fits over exhaust vent. The sloped end always
faces the front of the RV [179] (See Fig. 6). It is held in place by
four 2-1/2" long Phillips head screws.

Propane Gas Connections

The refrigerator operates on propane gas at a pressure of 10.5
inches Water Column min. to 11.5 inches Water Column max.
WARNING
Be very careful when working on or near
!
ATTENTION
the propane gas system.
■ Do not smoke, or use an open flame near the propane gas
system.
■ Do not use an open flame to examine for leaks.
■ Do not connect the refrigerator to the propane gas tank without
a pressure regulator between them.
■ To avoid possible propane gas leaks, always use two wrenches
to tighten or loosen the propane gas supply line connections.
■ Leaking propane gas can ignite or explode and result in danger-
ous personal injury or death.
Do not allow the leak detecting solution
WARNING
!
to touch the electrical components. Many
ATTENTION
liquids are electrically conductive and can
cause a shock hazard, electrical shorts,
and in some cases fire.

Leak Test-Detergent

Using a solution of liquid detergent and water:
■ Examine the propane gas supply system for leaks: make sure
the propane gas supply line and all gas connections have no
leaks. Do not use any liquid that contains ammonia.

Leak Test-Compressed Air

If you use compressed air for the test:
■ The pressure of the compressed air at the 3/8 inch male flare
fitting of the refrigerator must not be more than 1/2 psig (14
www.norcold.com
inches Water Column).
■ If the pressure of the compressed air is more than 1/2 psig (14
inches Water Column), remove the gas supply line from the 3/8
inch male flare fitting of the refrigerator before the test.
■ If the pressure of the compressed air is equal to or less than
1/2 psig (14 inches Water Column), push and hold the ON/OFF
button ( ) for one (1) second before the test.

Electrical Connections

120 Volts AC Electrical Connection

The refrigerator is equipped with a three prong plug for protection
against shock hazard and must be connected into a recognized
three prong attachment receptacle. The free length of cord is 24".
The cord must be routed so as not to come in contact with the
burner cover, flue pipe or any other component that could damage
the cord insulation.
WARNING
!
ATTENTION
■ Verify AC power cord is in a grounded three-prong receptacle.
■ Verify receptacle is within easy reach of the lower intake vent.
■ Verify power cord does not touch the burner cover, the flue
pipe, or any hot component that could damage the insulation of
the power cord.

12 Volts DC Electrical Connection

The refrigerator controls require 12 volt DC to operate. The
minimum control voltage is 10.5 volts DC. The maximum control
voltage is 15.4 volts DC.
Polarity
The correct polarity of the DC leads to the power board connec-
tions is:
■ The + 12 volt DC (positive) supply wire from the battery must be
connected to the terminal marked "12VDC" on the power board.
■ The - 12 volt DC (negative) supply wire from the battery must be
connected to the terminal marked "GND" on the power board.

Power Board Fuses

The DC controls circuit is protected by an Automotive Blade, Type
APR-5A-Tan fuse located on power board terminal F1. The AC
circuit is protected by an AGC Series, 8A, Fast Acting, Glass Tube
(1/4 in. x 1-1/4 in.) fuse located on power board terminal F2.
■ See wiring diagram in this manual. Both negative and positive
supply wires require 1/4" female quick connect terminals.
9
Do not remove (cut)grounding plug from
the refrigerator AC power cord. Removal
of this prong can result in a severe electri-
cal shock, as well as voiding the refrigera-
tor's electrical certification and warranty.
SERVICE MANUAL