INOV8 Model F240 – Edited September 2008
24
NORMAL OPERATION OF FURNACE
Although this furnace has been inspected and fire-tested at the factory, the following
procedures should be performed to assure proper on-site operation. After completion of
the following steps, the operation of the INOV8 Furnace is automatic. For a more
complete description of how the burner works, see Theory of Operation starting on page
42.
1. Set the wall thermostat to the desired room temperature.
2. Adjust the primary air pressure to 30 psig on the furnace by turning the knurled knob
at the top of the regulator.
3. Turn the furnace power "ON". The automatic operating sequence is as follows:
a. The thermostat calls for heat.
b. The combustion motor (and the boost pump motor if used) start providing
combustion air and oil circulation.
c. The "Safe Start" self-electronic check begins (which insures there is no residual
fire).
d. The oil heater located in the module (item #15 in figure 5) begins heating, as long
as the rocker switch is in the ON or “1” position (item #25).
e. The oil reaches firing temperature in about 5 minutes.
f. The (draft inducer turns on, if used) and the 90-second purge of the combustion
chamber starts.
g. The ignition transformer is activated for a 10-second period during the PTFI
sequence.
h. The atomizing air solenoid is activated and the Bimba cylinder retracts the
needle.
i. The oil solenoid is activated and oil is delivered to the nozzle, fire must be
detected within 10 seconds for continued operation.
j. When flame is detected 10 seconds after running in PTFI Mode, the burner
control automatically changes from the "PTFI" mode to the "RUN" mode and the
ignition transformer is deactivated (ignition is self-sustaining).
k. The burner will continue operating under control of the wall thermostat.
Note: If the flame is extinguished while in the "RUN" sequence the combustion control
will terminate oil flow in 3 seconds and revert back to a 90 second purge. The burner will
make one attempt to re-establish the flame for each time the burner has reached the
"RUN" mode. If flame is not established during the first 10 second "PTFI” Pilot sequence,
the Fireye combustion control will terminate oil flow in 10 seconds and revert to a full
safety shutdown that requires a manual reset. Safety shutdown will be indicated by the
red light on the control panel. Depress the reset button (located on the top of the
controller box) and hold it down for at least one second to initiate the 90-second purge
cycle. If a safety shutdown occurs again, refer to the Trouble Shooting section of this
manual.
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