Sequence Of Operation - Space-Ray PTS 40-N7/L7 Installation And Operation Instructions Manual

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SEQUENCE OF OPERATION

The chart below shows the sequence of operation for the normal operating cycle of the PTS/PTU when
connected to a permanent 120V power supply and the heater is turned on and off by a remote 24V thermostat.
Note:
If the flame is not sensed during sequence T3 then the burner will automatically begin re-ignition sequence T2.
The ignition sequence will be repeated three times with a 60 second inter-purge. If the flame is not re-
established the heater will go to lockout.
Form 43343530
-42- Aug 2012