Trane Perfomance Climate Changer CSAA Series - Heating Mode Maintenance; Service Personnel Maintenance

CLCH-SVX08C-EN 31
Routine Maintenance
Heating Mode Maintenance
Service Personnel Maintenance
WARNING
Hazardous Gases and Flammable Vapors!
Exposure to hazardous gases from fuel substances have
been shown to cause cancer, birth defects or other
reproductive harm. Improper installation, adjustment,
alteration, service or use of this product could cause
flammable mixtures or lead to excessive carbon
monoxide. To avoid hazardous gases and flammable
vapors follow proper installation and set up of this
product and all warnings as provided in this manual.
Failure to follow all instructions could result in death or
serious injury.
Table 9. Routine maintenance in heating mode
Task Frequency Remarks
Unit startup Weekly Listen to and visually inspect the unit during normal startup.
Unit shutdown Weekly Listen to and visually inspect the unit during normal shutdown.
Check fuel valves, pilot and main Weekly Open limit switches and listen to and visually inspect.
Check combustion safety controls:
- Flame failure Weekly
Close manual fuel supply for the pilot and the main fuel valves; check safety
shutdown timing and record.
- Flame signal strength Weekly
Follow procedure to check flame signal strength outlined in “Main Burner Ignition,”
p. 28.
Drain condensate from heat exchanger Weekly This task only needs to be done if the unit runs for extended hours at low fire.
Clean air inlet louver Monthly Use brush and vacuum cleaner
Clean combustion air blower and motor Monthly Use brush and vacuum cleaner
Clean exhaust flue Monthly Use brush and vacuum cleaner
Clean combustion air dampers Monthly Use brush and vacuum cleaner
Check combustion air inlets for obstruction.
Remove debris.
Monthly Use brush or vacuum cleaner.
Check gas piping for leaks Yearly
Use soap bubble solution or equivalent leak tester.
 WARNING: Do not use an open flame to perform a leak test as personal injury
or death could occur.
Table 10. Routine maintenance for trained service personnel
Task Frequency Remarks
Inspect burner components Semiannually Refer to burner and component manufacturer’s manuals
Visually inspect safety switches Semiannually
Inspect airflow sensor lines for obstructions.
Inspect terminal connections for tightness.
Inspect switches for fused contacts.
Check that settings haven’t changed or been tampered with.
Check flue emissions Annually Use a combustion analyzer
Check fuel valves, main Annually Perform valve leak test per valve manufacturer’s instructions
Check safety controls:
- High limit
- Airflow
- Low gas pressure
- High gas pressure
- Exhaust fan switch (where applicable)
Annually Refer to control manufacturer’s instructions
Inspect gas pilot assembly Annually Remove and clean if applicable