Carrier 40RU User Manual
3
Table 1A — 40RUA Physical Data, English — Cooling Units
UNIT 40RUA*
25
28
30
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)
(approx per circuit)
{
3.5
4.5
5.0
DIRECT---EXPANSION COIL
Enhanced Copper 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
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
)
1.90
LEGEND
DX — Direct Expansion
TXV — Thermostatic Expansion Valve
TXV — Thermostatic Expansion Valve
{
Units are shipped without refrigerant charge.
}
Field installed accessory only.
40RU