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Table 1C — 524J*25H Physical Data, English — Heat Pump Units
UNIT 524J* 25H
NOMINAL CAPACITY (Tons)
20
OPERATING WEIGHT (lb)
Base Unit with TXV 720
Plenum 140
FANS
Qty ...Diam. (in.) 2...15
Nominal Airflow (cfm) 8000
Airflow Range (cfm) 6000---10000
Nominal Motor Hp (Standard Motor)
208/230---3---60 and 460---3---60 5.0
57 5 --- 3 --- 60 5.0
Motor Speed (rpm)
208/230---3---60 and 460---3---60 1745
57 5 --- 3 --- 60 1745
REFRIGERANT
R---410A
Operating charge (lb)
(approx per circuit)*
3.5/3.5
DIRECT---EXPANSION COIL
Enhanced Copper Tubes, Aluminum Sine---Wave Fins
Max Working Pressure (psig) 650
Face Area (sq ft) 19.9
No. of Splits 2
No. of Circuits per Split 2
Split Type...Percentage Face....50/50
Rows...Fins/in. 4...15
PIPING CONNECTIONS,
Quantity...Size (in.)
DX Coil — Suction (ODF) 2...1
1/
8
DX Coil — Liquid Refrigerant (ODF) 2...
5/
8
Steam Coil, In (MPT) 1...2
1/
2
Steam Coil, Out (MPT) 1...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
Access Location RightorLeftSide
STEAM COIL**
Max Working Pressure (psig at 260°F) 20
Total Face Area (sq ft) 13.33
Rows...Fins/in. 1...10
HOT WATER COIL**
Max Working Pressure (psig) 150
Total Face Area (sq ft) 13.33
Rows...Fins/in. 2...8.5
Water Volume
(gal) 13.9
(ft
3
) 1.85
LEGEND
DX — Direct Expansion
TXV— Thermostatic Expansion Valve
*
Units are shipped without refrigerant charge.
** Field installed accessory only.
524J