4-22. UPPER AND LOWER MANIFOLD ASSEMBLY
This task covers:
Tool Set, General (Item 1, Appendix B)
Tool Set, Common No. 1 (Item 3, Appendix B)
Rags, Wiping (Item 15, Appendix F)
Sealer (Item 13, Appendix F)
Water heater shut off and cooled down.
Power switch off and power cable disconnected.
Inspect the upper and lower manifold assemblies for leaks, corrosion, damage, or loose components.
Remove faulty manifold assembly components as follows:
Hot water under pressure is present in the water heater. Do not attempt to work on the
plumbing until the water heater is cooled down
Unscrew coupling (1) from bushing (2).
b. Unscrew bushing (2) and valve (3) from upper manifold (10).
c. Unscrew vent valve (4) and coupling (5) from upper manifold (10).
d. Unscrew overflow tube fitting (6) and clamp (12) from elbow (7). Remove overflow tube (13).
Change 2 4-51