American Water Heater 6510319 Water Heater User Manual


 
6. Reconnect the manifold tubing, pilot tubing, and
thermocouple to the thermostat. Do not cross-
thread or apply any thread sealant to these fittings.
!
Note: L.P. gas systems use reverse (left-hand)
threads on the manifold tube.
!
The thermocouple nut should be started and
turned all the way in by hand. Note: These are
left-hand threads. An additional quarter turn
with a 7/16” open-end wrench will then be
sufficient to seat the lockwasher.
7. Reconnect the igniter wire.
8. Turn gas supply on and refer to the "Lighting
Instructions" on page 17.
9. Check for leaks. Use a chloride-free soap and
water solution (bubbles forming indicate a leak) or
other approved method. All leaks must be fixed
immediately.
10. Replace the outer door.
Bracket
Figure 27A
Combustion Chamber
Tab
Flame-trap
Cleaning the Combustion Chamber
and Flame-trap
1. Follow procedure outlined in “Removing the
Manifold Assembly”.
2. Use a vacuum cleaner/shop vac to remove all loose
debris in the combustion chamber (Figure 27A).
Use compressed air to clear any dust or debris that
may have accumulated in the flame trap.
3. Reassemble following the procedure under
“Replacing the Manifold Assembly”.
Replacing the Manifold Assembly
1. Check the door gasket for damage or imbedded
debris prior to installation.
2. Inspect the viewport for damage and replace as
required.
3. Insert the manifold assembly into the burner
compartment making sure that the tab of the
manifold tube engages in the slot of the bracket
inside the combustion chamber (Figure 27B). The
tab is located at the bottom of the burner for L.P.
Models.
4. Inspect the door gasket and make sure there is no
fiberglass insulation between the gasket and the
combustion chamber.
5. Replace the two screws which secure the manifold
assembly door to the combustion chamber. Tighten
securely. There should be no space between the
gasket part of the manifold door and combustion
chamber. Do not operate the water heater if the
door gasket is not sealed.
Explosion Hazard
Tighten both manifold door screws
securely.
Remove any fiberglass between gasket
and combustion chamber.
Replace viewport if glass is missing or
damaged.
Replace two piece wire connector if
missing or removed.
Replace door gasket if damaged.
Failure to do so can result in death,
explosion, or fire.
23
Figure 27B
Manifold Assembly
Close-up
Tab
Bracket
Slot