TM
Installation & Service Manual
12 Maintenance
Maintenance and annual startup
Table 12A Service and Maintenance Schedules
Service technician
(see the following pages for instructions)
| General: |
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| |
| • Address reported problems |
| ||||
| • Inspect interior; clean and vacuum if | |||||
| necessary; |
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| ||
| • Clean condensate trap and fill with fresh | |||||
| water |
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|
|
| |
| • Check | for | leaks | (water, gas, | flue, | |
| condensate) |
|
|
| ||
| • Verify flue and air lines in good condition | |||||
UP | and sealed tight |
|
| |||
• Check | system water pressure/system | |||||
START- | ||||||
piping/expansion tank |
| |||||
|
| |||||
| • Check control settings |
| ||||
ANNUAL | • Check ignition and flame sense electrodes | |||||
(sand | off | any | deposits; | clean | ||
| ||||||
| and reposition) |
|
| |||
| • Check wiring and connections |
| ||||
| • Perform | checkout | and | |||
| performance verification per Section 10 | |||||
| in this manual. |
|
| |||
| • Flame inspection (stable, uniform) |
| ||||
| • Flame signal (at least 10 microamps at | |||||
| high fire) |
|
|
| ||
| • Clean | the | heat | exchanger if | flue | |
| temperature is more than 54°F above | |||||
| return water temperature. |
| ||||
If combustion or performance indicate need:
•Clean heat exchanger
•Remove and clean burner using compressed air only
•Clean the blower wheel
Owner maintenance
Daily
• Check water heater area
• Check vent piping
Monthly
•Check air piping
•Check relief valve
•Check condensate drain system
Every | • Check water heater piping (gas | |
and water) for leaks | ||
| ||
6 months |
| |
| • Operate relief valve |
53 
