Start-Up Procedures - Rheem RGFE Installation Instructions Manual

START-UP PROCEDURES

IGNITOR PLACEMENT,
ALIGNMENT & LOCATION
Ignition failure may be a result of
improper ignitor alignment caused dur-
ing a service call or other work done to
the furnace in the field. When perform-
ing any work on the burner, heat
exchanger, etc., the technician must
check alignment of the spark ignitor.
Misalignment of the ignitor could cause
a failure to light or rough ignition. The
correct ignitor alignment is shown in
Figure 76.
TO START THE FURNACE
DIRECT SPARK IGNITION LIGHTING
INSTRUCTIONS
This appliance is equipped with a direct-
spark ignition device. This device lights
the main burners each time the room
thermostat calls for heat. See the lighting
instructions on the furnace.
During initial start-up, it is not unusual for
odor or smoke to come out of any room
registers. To ensure proper ventilation, it
is recommended to open windows and
doors, before initial firing.
The furnace has a negative pressure
switch that is a safety during a call for
heat. The induced draft blower must pull
a negative pressure on the heat
exchanger to close the negative pressure
switch. The induced draft blower must
maintain at least the negative pressure
switch set point for the furnace to oper-
ate. If the induced draft blower fails to
close or maintain the closing of the nega-
tive pressure switch, a "no heat call"
would result.
FIGURE 76
UPFLOW OPTIMUM IGNITOR LOCATION
1. Remove the burner compartment
control access door.
2. IMPORTANT: Be sure that the man-
ual gas control has been in the
"OFF" position for at least five min-
utes. Do not attempt to manually
light the main burners.
3. Set the room thermostat to its low-
est setting and turn off the furnace
electrical power.
4. Turn the gas control knob to the
"ON" position.
5. Replace the burner compartment
control access door.
WARNING
FAILURE TO REPLACE THE
BURNER DOOR CAN CAUSE
PRODUCTS OF COMBUSTION TO
BE RELEASED INTO THE CONDI-
TIONED AREA RESULTING IN
PERSONAL INJURY OR DEATH.
6. Turn on the manual gas stop.
7. Turn on the furnace electrical power.
8. Turn thermostat to "Heat" mode and
set the room thermostat at least
10°F above room temperature to
light the main burners.
9. After the burners are lit, set the
room thermostat to a desired tem-
perature.
DOWNFLOW/HORIZONTAL OPTIMUM IGNITOR LOCATION
FURNACE TEST MODE
See the section of this manual titled
"DIPSWITCH" under "SW-2" for
details about test mode.
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