Frost Fighter IHS 1500, Installation, Operation, Maintenance Instructions & Parts List

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140-300 psig
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SEQUENCE OF OPERATION – TYPICAL
1. Turn the unit switch to manual.
2. Power is applied to the R7184B black wire (BK).
3. After 10 seconds, the F7184B applies 120 volts to the orange wire (OR),
activating the burner motor (M1) and the ignition transformer (TR). The oil
pump is operated by the burner-motor, so oil pressure is delivered to the oil
valve inlets.
4. Power is applied to the oil valve circuit. After a ten second pre-purge. When
the timer times out, oil valves (S1 and S3) are activated, allowing oil to flow to
the nozzle.
5. Trail for ignition (TFI). A flame should be established within the 15-second
lockout time. If no flame is sensed after 15 seconds, the R7184B will terminate
all power to the blower and oil circuits, shutting the burner down. The control
will electrically lock out and has to be manually reset. If the control locks out
three times in a row, the control enters restricted lockout. Call a qualified
service technician.
6. After the flame is established, there is a 30 second warm-up. After the 30
seconds the main blower starts.
7. When the call for heat signal terminates (at the black wire of the R7184B), the
R7184B terminates power to all circuits, closing the oil valves and stopping the
burner motor. The main blower motor stays in operation for 3 minutes, then the
blower shut down.
(Optional)
If a thermostat is used, the thermostat is plugged into the receptacle on the side of unit. The sensor unit
should be placed in the heated space. On a call for heat the unit will be activated as above.