Page 6 X30 Owner’s Handbook
The heating cycle will end once the 10 minutes have past OR the coolant temperature reaches
194°F (90°C) at the heaters outlet.
The PROHEAT then shuts the flame off and goes to “Cool down” (Purge).
6. COOL DOWN (Purge) – The air compressor and fuel pump shut off immediately. The blower
and coolant pump continue to run. After 3 minutes, the blower stops and the PROHEAT goes
to “Standby.”
7. STANDBY – The coolant pump circulates the coolant through the system until the temperature
drops to 150˚F (65˚C) at the heater outlet; then it will enter Precheck and repeat steps 2 to 6. The
PROHEAT will continue to repeat steps 2 to 5 until it is switched “off.”
8. SWITCH OFF – If PROHEAT is in Full Output, it will Cool Down (Purge) first, then shut “OFF”.
If PROHEAT is in Standby, it will shut “OFF” immediately.
When switched OFF, the Sleeper Fan (if equipped) output turns off.
When switched OFF, the Hour Meter (Auxiliary Output) will shut off.
Operating your PROHEAT
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