Norcold N500 - Burner Cleaning Procedure

DRAFT
NOT FOR PUBLIC RELEASE
28
www.norcold.com/cda
N500/N510 Models
Refrigerator Service Manual
Burner Cleaning Procedure
14. Install the orifice assembly. Thread the orifice
assembly into the burner finger tight, then finish
tightening using two wrenches.
15. Connect the burner tube. Thread the fitting finger
tight, then finish tightening using two wrenches.
16. Install the burner box cover. Do not overtighten the
retaining screw.
17. Install the drip cup.
18. Open the LP gas tank valve.
19. Open the gas valve manual shutoff.
20. Turn ON the refrigerator and select the GAS mode
(N500) or LP Manual Mode (N510) operation.
21. Leak test LP gas connections while holding in gas
safety valve (N500) or during the 30 second trial-for-
ignition (N510).
1. Turn OFF refrigerator.
2. Close the LP gas tank valve(s).
For steps 3 - 5, refer to Figure 32, page 37 (N500) or
Figure 33, page 38 (N510).
3. Close the gas valve manual shutoff.
4. Remove the drip cup retaining screw, then remove
the drip cup.
5. Remove the burner box cover retaining screw, then
slide the burner box cover out of the way.
For steps 6 - 8, refer to Figure 17, page 23 (N500) or
Figure 21, page 25 (N510).
6. Disconnect the burner tube from the orifice
assembly.
7. Remove the orifice assembly from the burner.
8. Remove the burner retaining screw.
9. Remove the burner from the burner box frame.
10. Clean the burner.
11. Visually inspect the orifice. If dirty, wash the
assembly with alcohol, then allow to air dry. If
cleaning fails to remove dirt or if the condition of the
orifice assembly is questionable, replace the orifice
assembly.
12. Clean dirt or debris from the burner box base.
13. Reinstall the burner. Do not overtighten the retaining
screw.
Do not insert any type of cleaning tool or wire into the
orifice. Do not drill or ream the orifice opening to clean
it. Insertion of any type of cleaning tools, reaming, or
drilling through the opening will alter the volume of LP
gas flow to the burner and create a fire hazard potential.
!
WARNING:
!
CAUTION:
To avoid gas leaks and prevent damage to connections,
piping, and components, always use two wrenches to
tighten the burner tube. A damaged burner tube creates
a potential for gas leaks.
!
WARNING:
Do not attempt to repair LP gas leaks with the
refrigerator in operation. Before attempting to repair a
gas leak:
T Turn OFF the refrigerator.
T Close the LP gas valve and the manual shutoff/
solenoid gas valve manual shutoff.
!
WARNING:
Burn hazard! Allow the burner box and burner
components to cool before attempting to service the
burner assembly or components.
!
CAUTION:
To prevent damage to connections, piping, and
components, always use two wrenches to loosen the
burner tube. A damaged burner tube creates a potential
for gas leaks.
The burner slots may be cleaned with a small flat file.
The inner bore of the burner body may be cleaned with
a 3/16 in. double-spiral wire brush. Do not damage the
threads when cleaning the inner bore of the burner.
NOTE