Bryant Physical Data - Unit 677C--ACont’d, Maximum Gas Flow Capacity, Heating Inputs

677C-- -- A

Table 1 - Physical Data - Unit 677C--A Cont’d)

UNIT SIZE				48090		48115		48130		60090		60115		60130
NOMINAL CAPACITY ---			ton		4		4		4		5		5		5
SHIPPING WEIGHT---			lb	513		513		513		543		543		546
		(kg)		233		233		233		246		246		246
COMPRESSORS									Scroll
Quantity									1
REFRIGERANT (R 410A)---				17.0		17.0		17.0		16.0		16.0		16.0
Quantity ---		lb
		(kg )			7.7		7.7		7.7		7.3		7.3		7.3
REFRIGERANT METERING DEVICE									TXV
OUTDOOR ORIFICE in. (qty)---						0.040 (2)						0.049 (2)
		(mm)				1.02						1.24
OUTDOOR COIL				2	...21	2	...21	2	...21	2	...21	2	...21	2	...21
Rows...Fins--- in.
Face Area---		sq ft		19.4		19.4		19.4		23.3		23.3		23.3
OUTDOOR FAN				3500		3500		3500		3800		3800		3800
Nominal Cfm
Diameter---		in.			22		22		22		22		22		22
		(mm)		559		559		559		559		559		559
Motor Hp---		Rpm		1/4 (1100)		1/4 (1100)		1/4 (1100)		1/3 (1100)		1/3 (1100)		1/3 (1100)
INDOOR COIL				3	...17	3	...17	3	...17	4	...17	4	...17	4	...17
Rows...Fins--- in.
Face Area---		sq ft			5.7		5.7		5.7		5.7		5.7		5.7
INDOOR BLOWER				1600		1600		1600		1750		1750		1750
Nominal Cooling Airflow---			(CFM)
Size ---	in.			11x10		11x10		11x10		11x10		11x10		11x10
	(mm)			279x254		279x254		279x254		279x254		279x254		279x254
Motor	---hp				1.0		1.0		1.0		1.0		1.0		1.0
FURNACE SECTION*
Burner Orifice				3	...38	3	...33	3	...31	3	...38	3	...33	3	...31
Natural Gas Qty...		Drill Size
Propane GasQty...		Drill Size		3	...53	3	...51	3	...49	3	...53	3	...51	3	...49
HIGH --- PRESSURE SWITCH (psig)									650 +/ ---	15
Cut---	out
Reset (Auto)									420 +/ ---	25
LOSS--- OF---	CHARGE /
LOW--- PRESSURE SWITCH
(Liquid Line) (psig)									20 +/ ---	5
Cut---	out
Reset (auto)									45 +/ ---	10
RETURN---AIR FILTERS †									24x36x1
Throwaway		(in.)
(mm)									(610x914x25)

*Based on altitude of 0 to 2000 ft (0---610 m).

{Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 ft/minute for high ---capacity type. Air filter pressure drop for non ---standard filters must not exceed 0.08 IN. W.C.

}If using accessory filter rack refer to filter rack installation instructions for correct filter size and quantity.

Table 2 – Maximum Gas Flow Capacity*

NOMINAL	INTERNAL						LENGTH OF PIPE, FT (m)†
IRON
	DIAMETER	10	20	30	40	50	60	70	80	90	100	125	150	175	200
PIPE, SIZE
(IN.)	(IN.)	(3.0)	(6.1)	(9.1)	(12.2)	(15.2)	(18.3)	(21.3)	(24.4)	(27.4)	(30.5)	(31.1)	(45.7)	(53.3)	(61.0)
1/2	.622	175	120	97	82	73	66	61	57	53	50	44	40	—	—
3/4	.824	360	250	200	170	151	138	125	118	110	103	93	84	77	72
1	1.049	680	465	375	320	285	260	240	220	205	195	175	160	145	135
1---1/4	1.380	1400	950	770	600	580	530	490	460	430	400	360	325	300	280
1---1/2	1.610	2100	1460	1180	990	900	810	750	690	650	620	550	500	460	430

*Capacity of pipe in cu ft of gas per hr for gas pressure of 0.5 psig or less. Pressure drop of 0.5--IN. W.C. (based on a 0.60 specific gravity gas). Refer to Table 2 and the NFGC NFPA 54/ANSI.

† This length includes an ordinary number of fittings.

Table 3 – Heating Inputs

HEATING INPUT	NUMBER OF		GAS SUPPLY PRESSURE (IN. W.C.)					MANIFOLD PRESSURE
			Natural{		Propane*{			(IN. W.C.)
(BTUH)	ORIFICES
		Min		Max	Min		Max	Natural{	Propane*†
40,000	2	4.0		13.0	11.0		13.0	3.2∼3.8	10.0∼11.0
60,000	2	4.0		13.0	11.0		13.0	3.2∼3.8	10.0∼11.0
90,000	3	4.0		13.0	11.0		13.0	3.2∼3.8	10.0∼11.0
115,000	3	4.0		13.0	11.0		13.0	3.2∼3.8	10.0∼11.0
130,000	3	4.0		13.0	11.0		13.0	3.2∼3.8	10.0∼11.0
*When a unit is converted to propane, different size orifices must be used. See separate, natural ---						to propane conversion kit instructions.---

{Based on altitudes from sea level to 2000 ft (610 m) above sea level. In th e U.S.A. for altitudes above 2000 ft (610 m), reduce input rating 4 percent for each additional 1000 ft (305 m) above sea level. In Canada, from 2000 ft (610 m) above sea level to 4500 ft (1372 m) above sea level, derate the unit 10 percent.

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