Bryant 120 Safety Considerations, 312A, Dimensional Drawing, Furnace Reliability Hazard

26-1/8"

28-7/8"

(FLUE COLLAR)

25-1/4"

22-9/16"

JUNCTION BOX

LOCATION

5-15/16"

7/8" DIA

ACCESSORY1/2" DIA THERMOSTAT WIRE ENTRY

3-15/16"

LEFT HAND GAS ENTRY

33-5/16"

7/8" DIA. ACCESSORY

11/16"

21-5/8"

BOTTOM INLET

24"

CASING

A

F D

24-7/8"

5-1/2"

1-11/16"E

2-7/16"

1-5/16"

13/16"1-1/8"

4-13/16"

8-9/16"

ALTERNATE

JUNCTION BOX

LOCATIONS (TYP)

VENT OUTLET

5 PLACES (TYP)

5-1/2"

11/16" 3-3/4"

					AIRFLOW
19"							13/16"
						OUTLET
	1/2" DIA. K.O.THERMOSTAT
	WIRE ENTRY						11/16"7-	9-5/8"
		1-3/4" DIA.RIGHT HAND
								3/4"
		GAS ENTRY							11-1/2"
	7/8" DIA. K.O. WIRE ENTRY
							14-7/8"
	7/8" DIA. ACCESSORY
			1-1/2"				1-1/4"
22-1/16"							1"
				SIDE INLET

312A

NOTES:

1.Two additional 7/8-in. diameter holes are located in the top plate.

2.Minimum return-air openings at furnace, based on metal duct. If flex duct is used, see flex duct manufacturer’s recommendations for equivalent diameters.

a.For 800 CFM-16-in. round or 14 1/2 x 12-in. rectangle.

b.For 1200 CFM-20-in. round or 14 1/2 x 19 1/2-in. rectangle.

c.For 1600 CFM-22-in. round or 14 1/2 x 22-in. rectangle.

d.For airflow requirements above 1800 CFM, see Air Delivery table in Product Data literature for specific use of single side inlets. The use of both side inlets a combination of 1 side and the bottom, or the bottom only will ensure adequate return air openings for airflow requirements above 1800 CFM.

A04037

NOTES:

1.Two additional 7/8---in. diameter holes are located in the top plate.

2.Minimum return ---air openings at furnace, based on metal duct. If flex duct is used, see flex duct manufacturer’s recommendations for equivalent diameters.

a.For 800 CFM---16---in. round or 14 1/2 x 12---in. rectangle.

b.For 1200 CFM---20---in. round or 14 1/2 x 19 1/2---in. rectangle.

c.For 1600 CFM---22---in. round or 14 1/2 x 22---in. rectangle.

d.For airflow requirements above 1800 CFM, see Air Delivery table in Product Data literature for specific use of single side inlets. The use of both side in- lets, a combination of 1 side and the bottom, or the bottom only will ensure adequate return air openings for airflow requirements above 1800 CFM.

Fig. 1 - Dimensional Drawing

SAFETY CONSIDERATIONS

!WARNING

FIRE, EXPLOSION, ELECTRICAL SHOCK, AND CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in dangerous operation, serious injury, death, or property damage.

Improper installation, adjustment, alteration, service, maintenance, or use could cause carbon monoxide poisoning, explosion, fire, electrical shock, or other conditions which may cause personal injury or property damage. Consult a qualified service agency, local gas supplier, or your distributor or branch for information or assistance. The qualified service agency must use only factory-authorized and listed kits or accessories when modifying this product.

!CAUTION

FURNACE RELIABILITY HAZARD

Improper installation or misapplication of furnace may require excessive servicing or cause premature component failure.

Application of this furnace should be indoors with special attention given to vent sizing and material, gas input rate, air temperature rise, unit leveling, and unit sizing.

Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified personnel should install, repair, or service heating equipment.

Untrained personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. When working on heating equipment, observe precautions in literature, on tags, and on labels attached to or shipped with furnace and other safety precautions that may apply. These instructions cover minimum requirements and conform to existing national standards and safety codes. In some instances, these instructions exceed certain local codes and ordinances, especially those that may not have kept up with changing residential construction practices. We require these instructions as a minimum for a safe installation.

!CAUTION

CUT HAZARD

Failure to follow this caution may result in personal injury.

Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate protective clothing, safety glasses and gloves when handling parts and servicing furnaces.

Wear safety glasses and work gloves. Have fire extinguisher available during start-up and adjustment procedures and service calls.

This is the safety-alert symbol . When you see this symbol on the furnace and in instructions or manuals, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies a hazard which could result in personal injury or death. CAUTION is used to identify hazards which may result in minor personal injury or

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