Smith GT-150, Инструкция по установке, эксплуатации и обслуживанию

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GT INSTALLATION AND OPERATION INSTRUCTIONS Page 28
C. Raise the thermostat at least 5 degrees above the
room temperature. The boiler should enter the pre-
purge mode before energizing the silicon carbide
igniter. Once the igniter is hot, the main gas valve
will open and the burner should light. If the burner
fails to light the system will make three more ignition
attempts. If the burner has not lit after the last
ignition try, the gas valve will close and the system
will go into lock out. DO NOT attempt to reset the
system until the ignition system has been inspected
and the problem resolved. Once the problem has
been resolved and 5 minutes have passed since
the last ignition attempt, reset the system by turning
the thermostat to it’s lowest setting and then back
to where it was or by momentarily interrupting the
electrical power to the boiler.
D. With the burner in operation close the manual shutoff
valve in the gas supply line. As soon as the burner
fl ame goes out, open the manual shutoff valve. A
normal ignition sequence should take place.
E. With the burner in operation, interrupt the power to the
control circuit by lowering and raising the thermostat.
A normal ignition sequence should follow.
F. To test the ignition safety shutoff device, close the
manual shutoff valve in the gas supply line. Within 6
seconds of main burner fl ame extinction, the main
gas valve solenoid should close with an audible noise.
The igniter should glow and make three attempts at
ignition. After unsuccessfully attempting to light the
burner the ignition module should lock out.
Figure 42 - Operational Flow Chart