Proheat X45–School Bus - Manual (Page 48)

SECTION 3. INSTALLATION
8. Once the heater is started it will continue to run until the coolant
temperature reaches 185˚F (85˚C) at heater outlet, then it will shut off.
NOTE: The vehicle dash temperature gauge may read significantly less
depending on the location of the sender unit on the engine.
Sequence of Events for Shutdown
a) Fuel pump and compressor shut off.
b) The blower will run for 3 minutes on Cool Down (Purge) cycle then
shut “OFF.”
c) The water pump will continue to run.
9. The heater will restart when the coolant temperature falls below 150˚F
(65˚C) at heater outlet, as long as the ON/OFF switch is left “ON.”
10. If the vehicle has been equipped with the sleeper heat option then:
a) Adjust the PROHEAT sleeper thermostat to highest heat position.
b) The sleeper heat exchanger fan will start blowing warm air.
11. Switch the ON/OFF switch to “OFF.” The red light will go out and the
heater will Cool Down (Purge) for three minutes.
12. Inspect the installation again for leaks.
13. Install the enclosure cover.
14. TO ENSURE FULL WARRANTY COVERAGE COMPLETE
THE WARRANTY CARD AND MAIL TO PROHEAT.
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