Bryant manual UNIT 524J

524J

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

UNIT 524J*	25A		28A	30A
NOMINAL CAPACITY (kW)	70		87	105
OPERATING WEIGHT (kg)
Base Unit with TXV	331		477	482
Plenum	102		148	148
FANS
Qty...Diam. (mm)	2...381		2...457	2...457
Nominal Airflow (L/s)	3775		4119	5663
Airflow Range (L/s)	2831 – 4719		3539 – 5899	4247 – 7079
Nominal Motor kW (Standard Motor)
208/230---3---60 and 460---3---60	3.73		5.60	7.46
575---3---60	3.73		5.60	7.46
Motor Speed (r/s)
208/230---3---60 and 460---3---60	29.1		29.1	29.1
575---3---60	29.1		29.3	29.3
REFRIGERANT			R--- 410A
Operating charge (kg)	1.59		2.04	2.27
(approx per circuit)*
DIRECT---EXPANSION COIL	Enhanced Copper Tubes, Aluminum Sine--- Wave Fins
Max Working Pressure (kPag)		4481
Face Area (sq m)	1.85			2.77
			2.30
No. of Splits	2		2	2
No. of Circuits per Split	18		20	24
Split Type...Percentage			Face...50/50
Rows...Fins/m	4...591			4...591
			4...591
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 (mm.)	4...406 x 508 x 51		4...508 x 610 x 51
	4...406 x 610 x 51		4...508 x 635 x 51
Access Location			Either Side
STEAM COIL**
Max Working Pressure (kPag at 126° C)		138
Total Face Area (sq m)	1.24			1.39
			1.39
Rows...Fins/m	1...394		1...394	1...394
HOT WATER COIL**
Max Working Pressure (kPag)		1034
Total Face Area (sq m)	1.24			1.39
			1.39
Rows...Fins/m	2...335		2...335	2...335
Water Volume
(L)	52.6
			54.1
(m3)	0.052		0.054

LEGEND

DX — Direct Expansion

TXV — Thermostatic Expansion Valve

*Units are shipped without refrigerant charge.

**Field installed accessory only.

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