Carrier 40RU 25, Manual

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7
LEGEND
Table 1 — 40 RUA 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) 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)
208/230-60 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)
a
NOTE(S):
a. Units are shipped without refrigerant charge.
3.5 4.5 5.0
DIRECT — EXPANSION COIL
Enhanced Copper Tubes, Aluminum Sine — Wave Fins
Maximum 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
b
b. Field-installed accessory only.
Maximum 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
b
Maximum 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
DX — Direct Expansion
IDF
— Inside Diameter, Female
ODF — Outside Diameter, Female
ODM
— Outside Diameter, Male
TXV — Thermostatic Expansion Valve