Norcold 452 Manual

A SERVICE OF

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Gas Connection

The refri

g

erators are desi

g

ned to operate on pro-

pane

g

as at a suppl

y

pressure of 11 inches water

column. A pressure re

g

ulator is re

q

uired between the

refri

g

erator and the main

g

as tank.

Do not connect

the refrigerator directly to the main propane tank

without a pressure regulator.

Use suppl

y

pipin

g

and fittin

g

s that compl

y

with local,

state, and national codes

g

overnin

g

t

y

pe and size.

These components should also compl

y

with NFPA

501C. Flexible metal connectors must compl

y

with

the current CAN 1-6.10 Standard. To prevent

g

as

pressure loss to the refri

g

erator, the propane should

be supplies b

y

a 3/8 inch diameter copper pipin

g

.

The

g

as suppl

y

pipin

g

is connected to the refri

g

erator

b

y

means of 3/8 inch SAE

(

UNF 5/8 - 18

)

male flare

fittin

g

.

Route the

g

as suppl

y

pipin

g

to limit vibration and

abrasion. The

g

as suppl

y

pipin

g

should enter the re-

fri

g

erator enclosure near the

g

as connection at the

rear of the refri

g

erator. The hole throu

g

h which the

g

as pipin

g

enters should be of sufficient size

(

ap-

proximatel

y

1/2 inch diameter

)

to provide ade

q

uate

clearance for the pipin

g

. Once the

g

as pipin

g

is in

place, appl

y

a sealant around the pipin

g

at its point

of entr

y

to minimize abrasion and vibration, and to

serve as a barrier to external moisture.

CAUTION: Use two wrenches when ma-

nipulating the gas inlet fitting. Failure to

use two wrenches can over stress the pip-

ing and create gas leaks.

The

g

as suppl

y

is connected to the refri

g

erator at

the inlet to the manual

g

as valve located at the bot-

tom rear of the refri

g

erator. Access to this area is

obtained throu

g

h the vehicle’s lower vent door. Care

must be taken when connectin

g

the

g

as pipin

g

to the

refri

g

erator to insure the fittin

g

s are secure.

120 Volt AC Connection

WARNING: The refrigerators are designed

to operate on a 120 volt, 60 Hertz

grounded AC circuit. The refrigerator’s AC

power cord is equipped with a three-prong

grounding plug which must mate with a

three-prong grounded receptacle to protect

against possible electrical shock hazards.

Operating the refrigerator without proper

ground can cause property damage, se-

vere personal injury, or death. It is the in-

staller’s responsibility and obligation to

provide a properly grounded electrical cir-

cuit to the refrigerator accordance with lo-

cal codes, or in the absence of local

codes, the National Electrical Code,

ANSI/NFPA 70. Do not cut or remove the

round grounding prong from the refrigera-

tor’s AC power cord. Do not use a two

prong adapter or an extension cord.

The free len

g

th of the refri

g

erator’s AC power cord

is 24 inches. It is recommended that the three-pron

g

g

rounded receptacle be located to the left side of the

refri

g

erator

(

viewed from rear

)

and approximatel

y

12

inches from the floor

(

see Fi

g

ure 9 above

)

. The AC

power cord must be routed so as not to contact the

refri

g

erator’s burner, flue pipe, or an

y

other compo-

nent which could dama

g

e the cord insulation.

12 Volt DC Connection

A 12 volt DC suppl

y

is re

q

uired to maintain the

flame i

g

nition circuit in the

g

as mode and for 3-Wa

y

models, to provide power for the DC heater. The DC

Manual Shut-Off Valve

Hold

Turn

3/8 " Gas Suppl

y

Fi

g

ure 8

Fi

g

ure 9 Rear View

9