L.B. White Pilot Light Ignition Installation And Service Manual page 49

Component
Testing
Continuity Checks
Attention
Thermostat
Many thermostats can be wired to open or close on an
increase in temperature.
Make sure the thermostat is wired properly so the
contacts close when the thermostat is set to a point
above room temperature and open when the
temperature is achieved. This will allow the heater to
cycle accordingly.
Refer to the heater wiring diagram or the wiring diagram
applied to the inside of the thermostat cover for proper
connection.
August 1999
6.2-2 2