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Bryant 524J Instrukcja Użytkownika Strona 3

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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
5 7 5 --- 3 --- 6 0 5.0 7.5 10.0
Motor Speed (rpm)
208/230---3---60 and 460---3---60 1745 1745 1745
5 7 5 --- 3 --- 6 0 1745 1755 1755
REFRIGERANT R--- 410A
Operating charge (lb)
(approx per circuit)*
3.5
4.5 5.0
DIRECT---EXPANSION COIL Enhanced C opper Tubes, Aluminum Sine---Wave Fins
Max Working Pressure (psig) 650
Face Area (sq ft) 19.88 24.86 29.83
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...1
1
/
8
2...1
3
/
8
2...1
3
/
8
DX Coil — Liquid Refrigerant (ODF) 2...
5
/
8
Steam Coil, In (MPT) 1...2
1
/
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...1
1
/
4
ODM/1 IDF
FILTE R S Throwaway — Factory Supplied
Quantity...Size (in.)
4...16 x 20 x 2
4...16 x 24 x 2
4...20 x 24 x 2
4...20 x 25 x 2
Access Location Either Side
STEAM COIL**
Max Working Pressure (psig at 260° F) 20
Tota l Fa ce A re a (sq f t) 13.33 15.0 15.0
Rows...Fins/in. 1...10 1...10 1...10
HOT WATER COIL**
Max Working Pressure (psig) 150
Tota l Fa ce Are a (s q f t) 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
(ft
3
) 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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