Sterling SDFI, Installation And Maintenance Instructions Manual

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SECTION VII - TROUBLE SHOOTING
continued
Check Safety Shutdown Performace
WARNING: Fire or explosion hazard. Can cause
property damage, severe injury or death.
Perform the safety shutdown test any time work
is done on a gas system.
NOTE: Read steps 1 through 7 before starting, and
compare to the safety sutdown or safety lockout
tests recommended for the intermittent pilot (IP)
ignition module. Where diffferent, use the
procedure recommended for the module.
1. Turn off gas supply.
2. Set thermostat or controller above room tempera-
ture to call for heat.
3. Watch for ignition spark or for glow at hot surface
igniter either immediately or following prepurge.
See IP module specifications.
4. Time the length of the spark operation. See the IP
module specifications.
5. After the module locks out, open the manual gas
cock and make sure no gas is flowing to the pilot or
main burner.
With modules that continue to spark
until the pilot lights or the system shuts down
manually, the pilot should light when the manual
gas control knob is opened.
6. Set the thermostat below room temperature and
wait one minute.
7. Operate system through one cmplete cycle to
make sure all controls operate properly.