Bryant 310AAV instruction manual Electrical Data, Power Cord Installation in Furnace J-BOX

310AAV

Table 7—Electrical Data

		VOLTS			OPERATING VOLTAGE				MAXIMUM		MAXIMUM	MINIMUM
FURNACE SIZE					RANGE		MAXIMUM	UNIT	WIRE		FUSE OR
		HERTZ---										WIRE
		PHASE					UNIT AMPS	AMPACITY#	LENGTH FT.		CKT BKR	GAUGE
					Maximum*	Minimum*				(M)‡	AMPS†
045---	08/024045	115---	60---	1	127	104	5.2	7.26	49	(14.9)	15	14
045---	12/036045	115---	60---	1	127	104	7.2	9.79	37	(11.2)	15	14
070---	08/024070	115---	60---	1	127	104	5.1	7.14	51 (15.5)		15	14
070---	12/036070	115---	60---	1	127	104	7.2	9.72	38 (11.5)		15	14
070---	16/048070	115---	60---	1	127	104	9.5	12.60	29 (8.8)		15	14
090---	14/042090	115---	60---	1	127	104	8.6	11.39	32 (9.7)		15	14
090---	16/048090	115---	60---	1	127	104	10.0	13.09	28 (8.5)		15	14
090---	20/060090	115---	60---	1	127	104	14.1	18.2	31 (9.4)		20	12
110---	12/036110	115---	60---	1	127	104	8.6	11.27	32 (9.7)		15	14
110---	16/048110	115---	60---	1	127	104	10.2	13.34	27 (8.2)		15	14
110---	22/066110	115---	60---	1	127	104	15.1	19.42	29 (8.8)		20	12
135---	16/048135	115---	60---	1	127	104	10.5	13.63	27 (8.2)		15	14
135---	22/066135	115---	60---	1	127	104	14.5	18.72	30 (9.1)		20	12
155---	20/060155	115---	60---	1	127	104	15.4	19.83	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 unit and service panel for maximum 2 percent voltage drop.

12.Complete electrical box wiring and installation. Connect line voltage leads as shown in Fig. 26. Use best practices (NEC) for wire bushings, strain relief, etc.

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

POWER CORD INSTALLATION IN FURNACE J-BOX

NOTE: Power cords must be able to handle the electrical requirements listed in Table 7. Refer to power cord manufacturer’s listings.

1.Remove cover from J-Box.

2.Route listed power cord through 7/8-in. (22 mm) diameter hole in J-Box.

3.Secure power cord to J-Box bracket with a strain relief bushing or a connector approved for the type of cord used.

4.Secure field ground wire to green ground screw on J-Box bracket.

5.Connect line voltage leads as shown in Fig. 26.

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

BX CABLE INSTALLATION IN FURNACE J-BOX

1.Remove cover from J-Box.

2.Route BX cable into 7/8-inch (22 mm) diameter hole in J-Box.

3.Secure BX cable to J-Box bracket with connectors ap- proved for the type of cable used.

4.Secure field ground wire to green ground screw on J-Box bracket.

5.Connect line voltage leads as shown in Fig. 26.

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

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