INSTALLATION
SECTION 1- INDUCED-COMBUSTION, HOT-SURFACE IGNITION, SINGLE-STAGE, TWO-STAGE AND VARIABLE-SPEED,
33.3-INCH HIGH, NON-CONDENSING FURNACES
PROCEDURE 1—INSTALL MAIN BURNER ORIFICES AND BURNER SPOILER SCREWS
NOTE:
See Fig. 2 for component location in UPFLOW orientation. Reorient component arrangement when furnace is installed in other positions.
CAUTION: UNIT DAMAGE HAZARD
Failure to follow this caution may result in excessive burner noise and misdirection of burner flames. This may result in flame
impingement of the burners and the heat exchangers, causing failures.
DO NOT re-drill burner orifices. Improper drilling may result in burrs, out-of-round holes, etc. Obtain new orifices if orifice size must
be changed. (See Fig. 1.)
1. Turn off furnace gas and electrical supplies.
2. Remove outer door.
3. Turn furnace gas valve switch to OFF position.
4. If furnace is oriented in a manner that the vent connector interferes with burner removal, remove vent connector from vent elbow inside
the furnace. Support the remaining vent connector with temporary metal wire or straps to prevent damage to the remaining portions of the
vent connector.
5. Remove gas supply pipe from gas valve (if installed).
Disconnect wires from gas valve.
CAUTION: UNIT OPERATION HAZARD
Wiring errors may cause improper and dangerous operation. Label all wires prior to disconnection when servicing controls.
ATTENTION: D’EQUIPEMENT DANGER D’OPERATION
Toute erreur de câblage peut être une source de danger et de panne. Lors des opérations d’entretien des commandes, étiqueter tous
les fils avant de les déconnecter
6. Remove the 2 screws on the left side that secure the manifold to the burner box.
7. Swing out manifold from burners then pull manifold out of right side of burner box. (See Fig. 2.)
8. Remove and discard orifices from manifold.
9. Refer to conversion kit rating plate 327697-204 to determine main burner orifice size. (See Fig. 10.)
Gas input rate on furnace rating plate is for installations at altitudes up to 2000 ft. In the U.S.A., the input rating for altitudes above 2000 ft must
be reduced by 4 percent for each 1000 ft above sea level.
In Canada, the input rating must be derated by 10 percent for altitudes of 2000 ft to 4500 ft above sea level.
The Conversion Kit Rating Plate accounts for high altitude derate.
10. Install main burner orifices. Do not use Teflon tape. Finger-tighten orifices at least 1 full turn to prevent cross-threading, then tighten with
wrench. There are enough orifices in each kit for largest furnace. Discard extra orifices.
SINGLE STAGE MODELS
2-STAGE MODELS
VARIABLE SPEED MODELS
58STA
310AAV
PG8MAA
58CTA
312AAV
58CVA
315AAV
58DLA
311AAV
PG8JAA
58CTX
312JAV
58CVX
315JAV
58STX
310JAV
58DLX
311JAV
Fig. 1—Burner Orifice
A96249
BURNER
ORIFICE
BURNER
ORIFICE
—3—
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Страница 32: ... 2004 CAC BDP 7310 W Morris St Indianapolis IN 46231 agganp31 32 Catalog No 63GA NP11 ...