60
MAINTENANCE
MAINTENANCE SCHEDULES
SERVICE TECHNICIAN
(SEE THE FOLLOWING PAGES FOR INSTRUCTIONS)
ANNUAL
General:
•
Address reported problems
•
Inspect interior; clean and vacuum
if necessary;
•
Clean condensate trap and fill with
fresh water
•
Check for leaks (water, gas, flue,
condensate)
•
Verify flue and air lines in good
condition and sealed tight
•
Check system water pressure
system piping/expansion tank
•
Check control settings
•
Check ignition and flame sense
electrodes (clean off any deposits;
clean and reposition)
•
Check wiring and connections
•
Perform start-up checkout and
performance verification per Start
Up section of 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.
•
Check Delta T (Temperature
Rise). Refer to Table 22 on Page
37.
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
MONTHLY
•
Check vent piping
•
Check air piping
•
Check air and vent termination
screens
•
Check T & P Relief Valve
•
Check condensate drain system
•
Check automatic air vents
•
Check Delta T (Temperature Rise)
EVERY 6
MONTHS
•
Check water heater piping (gas
and water) for leaks
•
Operate T & P Relief Valve
Table 29. Service and Maintenance Schedules
Содержание XWH 150
Страница 48: ...48 Figure 72 Low Voltage Field Wiring Connections...
Страница 53: ...53 OPERATING INSTRUCTIONS FOR MODELS 400 800...
Страница 66: ...66 NOTES...
