Propane Gas Pressure and Connection
Hazardous vapors! Propane gas can cause an explo-
sion and result in property damage, personal injury or
death. Use extreme care when working with or near a
propane system. Do not smoke. Do not create sparks
or use an open flame to check supply piping and fittings
for leaks.
This refri
erator is desi
ned to operate on propane
as with a suppl
pressure to the refri
erator of 11
inches water column. A pressure re
ulator is re
uired
between the refri
erator and the main
as tank to
maintain the suppl
pressure of 11 inches water col-
umn.
Do not connect the refrigerator directly to the main
tank without a pressure regulator in line.
Use suppl
pipin
and fittin
s that compl
with NFPA
501C, as well as local, state, and national codes
ov-
ernin
t
pe and size. Also, refer to NFPA 501C for
routin
and testin
. The
as should be supplied b
a
3/8" diameter copper pipin
or other approved pipin
of sufficient diameter to prevent
as pressure loss to
the refri
erator. The
as connection located at the top
of the refri
erator is a 3/8 inch SAE
UNF 5/8"-18
male
flare connection.
The
as pipin
should be routed in a manner to limit
the possibilit
of vibration and abrasion. The
as suppl
pipin
should enter at the vicinit
of the
as connection
located at the top of the refri
erator. The hole throu
h
which the
as pipin
enters should be of sufficient size
approximatel
1/2" diameter
to provide ade
uate
clearance. Once the
as pipin
is installed, appl
a
sealant around the pipin
at its point of entr
to mini-
mize abrasion, vibration, and to serve as a barrier from
external moisture.
To prevent
as leaks and dama
e to the
as suppl
pipin
, use two wrenches, one to hold the fittin
of the
manual
as valve the other to ti
hten the suppl
pipin
to the refri
erator.
Electrical Connections
120 Volts AC
This refrigerator is designed to operate on a 120 volt
AC, 60 Hertz grounded circuit. The refrigerator AC
power cord is equipped with a three-prong grounding
plug which must mate with a three-prong grounding re-
ceptacle to protect against possible shock hazards. Op-
erating the refrigerator without proper ground can cause
property damage, severe personal injury or loss of life.
It is the owners/installers personal responsibility and
obligation to provide a properly grounded circuit to the
refrigerator in accordance with local codes or, in the
absence of local codes, the National Electrical Code,
ANSI/NFPA 70. Do not cut or remove the grounding
prong from the refrigerator’s AC power cord. Do not use
a two-prong adapter or extension cord.
The free len
th of the AC power cord is 36 inches. It
is recommended that the three-pron
rounded recep-
tacle be located within reach of the cord. The cord must
be routed so as not to come in contact with the burner,
flue pipe, or an
other component that could cause
dama
e to the cord insulation.
12 Volt DC Connection
12 volts DC is re
uired for flame i
nition and the
mechanical fan in the
as mode and to power the DC
heater in the DC mode. The refri
erator receives its DC
power source from the vehicle’s 12 volt s
stem; either
an auxiliar
house
batter
or the en
ine batter
. The
batter
s
stem not onl
supplies the refri
erator, but also
supplies power to other DC components of the vehicle.
The DC suppl
connects to the refri
erator at the
terminal block located at the top of the refri
erator. One
lead is marked positive
+
and the other is marked
ne
ative
-
. Correct polarit
must be observed when
connectin
the DC suppl
.
Do not use the chassis or
vehicle frame as one of the conductors. Connect supply
wires at the battery and route to the refrigerator.
The distance the current travels from the batter
to the
refri
erator dictates the AWG wire size to be used.
Undersized wire for the distance can result in a volta
e
drop. A volta
e drop will affect the watta
e output of
the DC heater and resultant refri
erator performance.
Use of undersized wire and/or inadequate fuses can
result in an electrical fire in the event of a circuit
overload. To prevent a possible electrical fire, follow
Norcold’s wire and fuse size requirements, or any
applicable state and local codes.
It is recommended to install a fuse between the batter
and the refri
erator to protect the suppl
wirin
. For
optimum protection, install the fuse as close to the
batter
as possible.
Recommended wire and fuse size:
minimum wire
size
maximum fuse
size
0 - 20’ 12 AWG 20 Amp
over 20’ 10 AWG 30 Amp
WARNING
WARNING
WARNING
5
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