Bryant manual UNIT 524J

Table 1A — 524J***A Physical Data, English — Cooling Units

UNIT 524J*	25A		28A	30A
NOMINAL CAPACITY (Tons)	20		25	30
OPERATING WEIGHT (lb)
Base Unit with TXV	730		1050	1062
Plenum	225		325	325
FANS
Qty...Diam. (in.)	2...15		2...18	2...18
Nominal Airflow (cfm)	8000		10000	12000
Airflow Range (cfm)	6000 – 10000		7500 – 12500	9000 – 15000
Nominal Motor Hp (Standard Motor)
208/230---3---60 and 460---3---60	5.0		7.5	10.0
575---3---60	5.0		7.5	10.0
Motor Speed (rpm)
208/230---3---60 and 460---3---60	1745		1745	1745
575---3---60	1745		1755	1755
REFRIGERANT			R--- 410A
Operating charge (lb)	3.5		4.5	5.0
(approx per circuit)*
DIRECT---EXPANSION COIL	Enhanced Copper Tubes, Aluminum Sine--- Wave Fins
Max Working Pressure (psig)		650
Face Area (sq ft)	19.88			29.83
			24.86
No. of Splits	2		2	2
No. of Circuits per Split	18		20	24
Split Type...Percentage			Face...50/50
Rows...Fins/in.	4...15			4...15
			4...15
PIPING CONNECTIONS,
Quantity...Size (in.)
DX Coil — Suction (ODF)	2...11/8		2...13/8	2...13/8
DX Coil — Liquid Refrigerant (ODF)			2...5/8
Steam Coil, In (MPT)		1...21/2
Steam Coil, Out (MPT)		1...1/2
Hot Water Coil, In (MPT)		1...2
Hot Water Coil, Out (MPT)		1...2
Condensate (PVC)			1...11/4 ODM/1 IDF
FILTERS	Throwaway — Factory Supplied
Quantity...Size (in.)	4...16 x 20 x 2		4...20 x 24 x 2
	4...16 x 24 x 2		4...20 x 25 x 2
Access Location			Either Side
STEAM COIL**
Max Working Pressure (psig at 260° F)		20
Total Face Area (sq ft)	13.33			15.0
			15.0
Rows...Fins/in.	1...10		1...10	1...10
HOT WATER COIL**
Max Working Pressure (psig)		150
Total Face Area (sq ft)	13.33			15.0
			15.0
Rows...Fins/in.	2...8.5		2...12.5	2...12.5
Water Volume
(gal)	13.9
			14.3
(ft3)			1.90

LEGEND

DX — Direct Expansion

TXV — Thermostatic Expansion Valve

*Units are shipped without refrigerant charge.

**Field installed accessory only.

524J

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