Honeywell Q314 Product Data page 22

Q314, Q324, Q327, Q350, Q377, Q379, Q380 AND Q382 PILOT BURNERS
4. Relight the pilot burner. The power unit should hold in.
5. Turn the gas control knob to the ON position and set
the thermostat temperature setting above room
temperature. The main burner should light within four
seconds without flame rollout. If not, check the pilot
burner Location instructions in the Installation section
and repeat the Pilot Turndown Test.
6. Readjust the pilot burner flame. Refer to the instructions
in the Startup and Checkout section.
Effective Ignition Test (750 mV Systems)
The Effective Ignition Test assures that the pilot flame ignites
the main burner within four seconds from the time gas
reaches the main burner. In this test, the pilot flame is just
sufficient to open the main gas valve.
1. Light the main burner according to the appliance
manufacturer's instructions and allow to burn at least
five minutes.
2. Remove one thermostat lead (TH) at the gas control
terminal.
3. Using the pilot gas adjustment screw, decrease the pilot
flame until it begins to pull away from the thermopile.
Allow the thermopile to cool for one minute.
4. Temporarily jumper the thermostat terminals (TH) on
the gas control.
5. If the main burner ignites, reduce the pilot flame by
turning the pilot adjustment screw 1/4 turn at a time
until the valve fails to pull in. Allow the thermopile to
cool at least one minute between each reduction in the
pilot flame level.
6. Increase the pilot flame just enough to pull in the gas
control main valve.
7. Jumper the thermostat terminals. The main burner
lights within four seconds and without flame roll-out. If it
does not, check the Location instructions in the
Installation section and repeat steps 1 through 6.
8. If main burner still does not light, replace the thermopile
and repeat steps 1 through 6.
9. Remove the jumper to shut off the main burner.
10. Readjust the pilot burner flame. See the instructions in
the Startup and Checkout section.
11. Reconnect the thermopile lead and make sure all
connections are correct and the system is functioning
properly.
60-2075—3
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