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Table 1C — 40RUS Physical Data, English — Chilled Water Units
LEGEND
UNIT 40RUS* 252830
NOMINAL CAPACITY (Tons) 20 25 30
OPERATING WEIGHT (lb)
Base Unit 683 1035 1042
Plenum 225 325 325
FANS
Qty...Diam. (in.) 2...15 2...18 2...18
Nominal Airflow (cfm) 8,000 10,000 12,000
Airflow Range (cfm) 6,000 – 10,000 7,500 – 12,500 9,000 – 15,000
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
CHILLED WATER COIL Enhanced Copper Tubes, Aluminum Sine-Wave Fins
Max Working Pressure (psig) 435
Face Area (sq ft) – Upper 11.0 12.4 15.5
Face Area (sq ft) – Lower 8.3 12.4 12.4
Rows...Fins/in. 3...15
PIPING CONNECTIONS,
Quantity...Size (in.)
Chilled Water — In 2...1
3
/
8
ODM 2...2
1
/
8
ODM 2...2
1
/
8
ODM
Chilled Water — Out 2...1
3
/
8
ODM 2...2
1
/
8
ODM 2...2
1
/
8
ODM
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
FILTERS 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
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
(ft
3
) 1.1 1.90
‡
Field installed accessory only.