Bryant 315AAV instruction manual Electrical Data, Box Relocation, Fire or Electrical Shock Hazard

Table 7 – Electrical Data

FURNACE		VOLTS		---	OPERATING		MAX. UNIT	UNIT	MAX. WIRE	MAX. FUSE OR	MIN.
		HERTZ			VOLTAGE RANGE			AMPACITY			WIRE
	SIZE						AMPS		LENGTH --- FT (M)}	CKT BKR AMPS {
		PHASE						#			GAUGE
					Max.	Min.
070---	12/036070	115---	60---	1	127	104	9.0	11.99	30 (9.0)	15	14
090---	16/048090	115---	60---	1	127	104	9.6	12.56	29 (8.8)	15	14
110---	20/060110	115---	60---	1	127	104	15.1	19.33	29 (8.8)	20	12
135---	22/066135	115---	60---	1	127	104	14.9	19.13	30 (9.0)	20	12
155---	22/066155	115---	60---	1	127	104	15.0	19.23	29 (8.8)	20	12

* Permissible limits of the voltage range at which the unit operates satisfactorily.

#Unit ampacity = 125 percent of largest operating component’s full load amps plus 100 percent of all other potential operating components’ (EAC, humidifier, etc.) full load amps.

{Time---delay type is recommended.

}Length shown is as measured 1 way along wire path between furnace and service panel for maximum 2 percent voltage drop.

!WARNING

FIRE HAZARD

Failure to follow this warning could result in personal injury, death, or property damage.

Do not connect aluminum wire between disconnect switch and furnace. Use only copper wire.

Use a separate, fused branch electrical circuit with a properly sized fuse or circuit breaker for this furnace. See Table 7 for wire size and fuse specifications. A readily accessible means of electrical disconnect must be located within sight of the furnace.

NOTE: Proper polarity must be maintained for 115-v wiring. If polarity is incorrect, control LED status indicator light will flash rapidly and furnace will NOT operate.

J-Box Relocation

Factory

Installed

Alternate

Location

A10291

Fig. 23 - Relocating J-Box

315AAV

NOTE: If factory location of J-Box is acceptable, go to next section (ELECTRICAL CONNECTION to J-Box).

NOTE: On 14-in. (356 mm) wide casing models, the J-Box shall not be relocated to other side of furnace casing when the vent pipe is routed within the casing.

1.Remove and save two screws holding J-Box. (See Fig. 23.)

NOTE: The J-Box cover need not be removed from the J-Box in order to move the J-Box. Do NOT remove green ground screw inside J-Box. (See Fig. 23.)

2.Cut wire tie on loop in furnace wires attached to J-Box.

3.Move J-Box to desired location.

4.Fasten J-Box to casing with the two screws removed in Step 1.

5.Route J-Box wires within furnace away from sharp edges, rotating parts and hot surfaces.

Electrical Connection to J-Box

Electrical Box on Furnace Casing Side (See Fig. 24.)

!WARNING

FIRE OR ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury, death, or property damage.

If field-supplied manual disconnect switch is to be mounted on furnace casing side, select a location where a drill or fastener cannot damage electrical or gas components.

1.Select and remove a hole knockout in the casing where the electrical box is to be installed.

NOTE: Check that duct on side of furnace will not interfere with installed electrical box.

2.Remove the desired electrical box hole knockout and posi- tion the hole in the electrical box over the hole in the fur- nace casing.

3.Fasten the electrical box to casing by driving two field- supplied screws from inside electrical box into casing steel.

4.Remove and save two screws holding J-Box. (See Fig. 23.)

5.Pull furnace power wires out of 1/2-in. (12 mm) diameter hole in J-Box. Do not loosen wires from strain-relief wire-tie on outside of J-Box.

6.Route furnace power wires through holes in casing and electrical box and into electrical box.

7.Pull field power wires into electrical box.

8.Remove cover from furnace J-Box.

9.Route field ground wire through holes in electrical box and casing, and into furnace J-Box.

10.Reattach furnace J-Box to furnace casing with screws re- moved in Step 4.

11.Secure field ground wire to J-Box green ground screw.

12.Complete electrical box wiring and installation. Connect line voltage leads as shown in Fig. 24. Use best practices (NEC in U.S. for wire bushings, strain relief, etc.

13.Reinstall cover to J-Box. Do not pinch wires between cover and bracket.

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