DRAFT
NOT FOR PUBLIC RELEASE
23
www.norcold.com/cda N500/N510 ModelsRefrigerator Service Manual
Thermostat
control switch
Mounting
bracket
Capillary
tube
Gas safety
valve
Mounting
bracket
Manual shut-off
Electrode
Burner
LP10 orifice assembly
Canister
Flue tube
Flue baffle
Burner box base
A
4A
ON
P2L
13
Gas inlet from
RV LP supply
LP GAS SYSTEM - N500
Components
Manual Shutoff Valve
The manual shutoff valve controls the flow of LP gas
from the RV LP supply to the gas valve-thermostat
assembly. See Figure 18.
Figure 17. N500 LP gas system components
Figure 18. N500 manual shutoff valve
The orifice meters the flow of gas to the burner. The
N500 model requires the LP10 orifice. See Figure 19. A
restricted, clogged, or damaged orifice will affect the
burner’s heat output, which in turn affects the
performance of the cooling unit when the refrigerator is
operating on LP gas. The orifice should be checked and
cleaned annually to maintain the LP gas combustion
system at peak performance. It should also be checked
before and after seasonal storage, and before the
recreational vehicle is placed in service. See page 28
for more information on cleaning the burner and its
components.
!
WARNING:
Do not separate the orifice from its threaded adaptor!
The orifice and its adaptor are a sealed assembly.
Separating the orifice from the threaded adaptor can
cause LP gas leakage. An LP gas leak can ignite and
cause an explosion and/or fire which could result in
substantial property damage, burn injury, or death.
Orifice
Figure 19. LP10 orifice
L
P
4A
ON
P2L
13
Mounting
bracket
Gas outlet
fitting
Gas inlet
fitting (from
RV gas supply)
Manual shut-off
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