Lighting And Shutdown Instructions; Sequence Of Operation - Space-Ray Infrared Radiant Tube Heater PTS Series Installation And Operation Instructions Manual

18.0)

LIGHTING AND SHUTDOWN INSTRUCTIONS

1) Turn on the gas and electrical supply. Rotate the gas valve knob counter-clockwise
2) Set the thermostat to call for heat. The blower motor will energize.
3) Ignition should occur after the 15-second pre-purge.
4) If the burner fails to light, or flame is not detected during the first trial for ignition (a period of approximately 15
seconds) the gas valve is de-energized and the control goes through an inter-purge delay of approximately 60
seconds before another ignition attempt. The control will attempt two additional ignition trials before going into
lockout, and the valve relay will be de-energized immediately. The blower will be turned off following a post-purge
period of approximately 30 seconds.
5) If the heater does not light, manually reset the thermostat or shut off power completely for 5 minutes before
attempting to relight.
6) To permanently shut down the heater, rotate the gas valve knob clockwise
the gas and electrical supply.
NOTE: THE LIGHTING AND SHUTDOWN INSTRUCTIONS ARE ALSO SHOWN ON THE PERMANENT NAMEPLATE LABEL
ATTACHED TO THE HEATER.
19.0)

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. (Electrical
connection diagram C).
–40–
to the "ON" position.
to the "OFF" position and turn off
Form #43343330
May 08