fan unit removal:
Model #
Allow (in.)
GA-320
42"
GA-400
48"
GA-640
50"
GA-800
54"
GA-960
60"
GA-1280
60"
4. Approximately 12" at furnace ends for
proper air inlet.
D. Unit should not be installed unless an ade-
quate flue can be provided.
IV. FLUE CONNECTIONS
The flue collector is of one-piece sheet metal
design with integral draft diverter. Flue outlets are
factory arranged to face upward.
Flue Dimensions
Model #
Dia. (in.)
GA-320
5"
GA-400
5"
GA-640
6"
GA-800
5"
GA-960
5"
GA-1280
6"
A. Consult local codes and regulations.
B. Refer to attached furnace manual for specific
venting instructions.
V. GAS PIPING
A. Connect gas piping in accordance with local
codes and authorities having jurisdiction.
B. Refer to attached furnace manual for specific
gas piping instructions.
VI. WIRING DETAILS
A. All units have been completely pre-wired and
tested at the factory and are ready for con-
nection to the external power source and to
the operating controls. See specific wiring
drawing accompanying installation instruc-
tions shipped with unit.
B. Make all external wiring in accordance with
the National Electric Code and local ordi-
nances.
VII. START UP INSTRUCTIONS
A. Energize electrical system through optional
main disconnect switch.
B. Refer to attached furnace manual for start up
instructions on pilot and main gas burners.
VIII. PRE-START INSPECTION
This inspection is extremely important and
should be completed with the greatest care given
to detail. A good pre-start inspection will insure
against possible unit damage on start-up and will
save valuable analysis time in the event a malfunc-
tion should occur on start-up.
• Check to see that all factory installed pipe
plugs have been removed.
• Check supply voltage against unit voltage.
• Check all electrical connections for tightness
at all terminals in the main control panel and
optional remote control panel.
• Check that all fuses are installed.
• Check fan area to insure freedom of rotation.
• Check all areas for cleanliness.
• Secure all access doors.
• If revolving discharge section is ordered, the
gear motor is secured so that it will not
become damaged during transit. Check to
see that gear motor has been loosened and
works freely against the spring.
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