12 G
G77x Intermittent Pilot Ignition Controls Technical Bulletin
!
WARNING: Fire or Explosion Hazard. Avoid personal injury or
property damage by making sure the control
functions properly and there are no gas leaks. Follow
this checkout and startup procedure before leaving
the installation.
!
WARNING: Fire or Explosion Hazard. Do not attempt to check
out this system by manually lighting the pilot. This
could energize the main valve.
Make sure all components function properly by performing the following
shutoff test.
1. With the gas and thermostat off, turn on power to the appliance.
2. Turn the thermostat to the highest setting and verify that the control
goes through the operating sequence to a shutoff condition.
Note: The burner will not light because the gas is off.
3. Turn off the thermostat.
4. Turn on the gas and purge gas lines of all air.
5. Check for gas leaks on all pipe joints upstream of the gas valve with a
soap solution.
6. Turn the thermostat to the highest setting and verify successful
ignition and a normal run condition for at least three minutes. If the
appliance fails to run, see the Service Checkout Procedures section.
7. Check for gas leaks on all pipe joints downstream of the gas valve
with a soap solution.
8.
Turn the thermostat down for at least 30 seconds, and then back up
again. Verify successful ignition at least three times.
9.
Return the thermostat to a normal temperature setting before leaving
the installation.
Checkout and
Startup
Procedure
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