Service Procedure; Flue Baffle Removal And Inspection - andrews 24/39 Installation And Service Manual

10 Appendix
10.9 Service procedure D24-V
102

10.9.1 Flue baffle removal and inspection

Warning
Heater components may be HOT when performing the
following steps in this procedure. Take necessary
precaution to prevent personal injury.
Step 1. Disconnect (unplug) water heater from electrical
supply.
Step 2. Disconnect venting from draft diverter and remove
draft diverter from top of water heater.
Step 3. Disconnect flue damper from wire harness and remove
flue damper from top of water heater.
Step 4. If required, turn "OFF" water supply & disconnect top
plumbing connection from top of water heater.
Step 5. Remove screws holding jacket head to top of water
heater and remove jacket head from top of water
heater. Note, it may be necessary to use a screw driver
to pry underneath jacket head.
Step 6. Remove insulation from top of water heater to expose
collector cover.
Step 7. Remove screws from side (or top) of collector cover.
Note, it may be necessary to chisel away some foam
to access screws.
Step 8. Remove collector cover from water heater by using
pipe wrench.
Step 9. Remove flue baffles from water heater. Note, it may be
necessary to use pliers to loosen and remove baffles
from flue tubes.
Step 10. Visually inspect flue baffles. Flue baffles may show
signs of oxidation; this is normal. If the oxidation has
deteriorated any portion of the flue baffle, replacement
is recommended. If any restrictors are missing,
replacement is recommended.
Step 11. Upon completion of inspection or subsequent
replacement, reinstall flue baffles into heater.
Step 12. Reinstall collector cover and insulation over collector
cover.
Step 13. Reinstall jacket head, flue damper and draft diverter.
Reconnect venting.
Step 14. Reconnect plumbing connection to top of water heater
& turn on water supply if required.
Step 15. Check for leaks and verify proper operation.
Issue 2 14/07/16