eco-ATWB Engineering Bulletin - Evapco

ACCESS DOOR
Access Doors
Swing Inside Unit
Engineering Data & Dimensions
eco-ATW Models 20-3I18 to 20-6N18
P
P
7
ACCESS DOOR
(4) 4 BFW
FLUID IN
57
30-3/8
U
ACCESS
DOOR
ACCESS
DOOR
A
(4) 4 BFW
FLUID OUT
H
(4) 1/2 FPT VENT
6
E
(2) 2 MPT MAKE-UP (2) 3 MPT OVERFLOW
(2) 3 MPT DRAIN
112-1/2
113-1/2
5-1/8
117-3/4
20' 5/8"
46
25-1/4
16-7/8
3-5/8
26
18' 0"
Note: The number of coil connections doubles when the flow rate exceeds 1,800 GPM on eco-ATW 20x18 models. This required option is referred to as the High Flow coil configuration.
eco-ATW
Weights (lbs) Fans Spray Pump Coil
Remote Sump Dimensions
Model Heaviest Volume Gallons* Conn. Operating Coil Upper Lower Height
Number† Shipping Section†† Operating HP CFM HP GPM (Gallons) Required Size Weight (lbs) A U E H
eco-ATW 20-3I18 41,880 17,270 64,440 (2) 10 146,260 (2) 7.5 2060 748 1260 (2) 12" 53,940 22-1/4" 8' 3-5/8" 7' 2-1/4" 15' 5-7/8"
eco-ATW 20-3J18 42,140 17,400 64,700 (2) 15 167,420 (2) 7.5 2060 748 1260 (2) 12" 54,200 22-1/4" 8' 3-5/8" 7' 2-1/4" 15' 5-7/8"
eco-ATW 20-3K18 42,260 17,460 64,820 (2) 20 184,270 (2) 7.5 2060 748 1260 (2) 12" 54,320 22-1/4" 8' 3-5/8" 7' 2-1/4" 15' 5-7/8"
eco-ATW 20-3L18 42,320 17,490 64,880 (2) 25 198,490 (2) 7.5 2060 748 1260 (2) 12" 54,380 22-1/4" 8' 3-5/8" 7' 2-1/4" 15' 5-7/8"
eco-ATW 20-3M18 42,420 17,540 64,980 (2) 30 209,060 (2) 7.5 2060 748 1260 (2) 12" 54,480 22-1/4" 8' 3-5/8" 7' 2-1/4" 15' 5-7/8"
eco-ATW 20-3N18 42,740 17,700 65,300 (2) 40 226,590 (2) 7.5 2060 748 1260 (2) 12" 54,800 22-1/4" 8' 3-5/8" 7' 2-1/4" 15' 5-7/8"
eco-ATW 20-4I18 49,620 21,140 74,160 (2) 10 142,000 (2) 7.5 2060 987 1260 (2) 12" 63,660 30-3/4" 9' 1/8" 7' 2-1/4" 16' 2-3/8"
eco-ATW 20-4J18 49,880 21,270 74,420 (2) 15 162,540 (2) 7.5 2060 987 1260 (2) 12" 63,920 30-3/4" 9' 1/8" 7' 2-1/4" 16' 2-3/8"
eco-ATW 20-4K18 50,000 21,330 74,540 (2) 20 178,900 (2) 7.5 2060 987 1260 (2) 12" 64,040 30-3/4" 9' 1/8" 7' 2-1/4" 16' 2-3/8"
eco-ATW 20-4L18 50,060 21,360 74,600 (2) 25 192,710 (2) 7.5 2060 987 1260 (2) 12" 64,100 30-3/4" 9' 1/8" 7' 2-1/4" 16' 2-3/8"
eco-ATW 20-4M18 50,160 21,410 74,700 (2) 30 202,970 (2) 7.5 2060 987 1260 (2) 12" 64,200 30-3/4" 9' 1/8" 7' 2-1/4" 16' 2-3/8"
eco-ATW 20-4N18 50,480 21,570 75,020 (2) 40 219,990 (2) 7.5 2060 987 1260 (2) 12" 64,520 30-3/4" 9' 1/8" 7' 2-1/4" 16' 2-3/8"
eco-ATW 20-5I18 57,160 24,910 83,700 (2) 10 137,740 (2) 7.5 2060 1226 1260 (2) 12" 73,200 39-1/4" 9' 8-5/8" 7' 2-1/4" 16' 10-7/8"
eco-ATW 20-5J18 57,420 25,040 83,960 (2) 15 157,670 (2) 7.5 2060 1226 1260 (2) 12" 73,460 39-1/4" 9' 8-5/8" 7' 2-1/4" 16' 10-7/8"
eco-ATW 20-5K18 57,540 25,100 84,080 (2) 20 173,530 (2) 7.5 2060 1226 1260 (2) 12" 73,580 39-1/4" 9' 8-5/8" 7' 2-1/4" 16' 10-7/8"
eco-ATW 20-5L18 57,600 25,130 84,140 (2) 25 186,930 (2) 7.5 2060 1226 1260 (2) 12" 73,640 39-1/4" 9' 8-5/8" 7' 2-1/4" 16' 10-7/8"
eco-ATW 20-5M18 57,700 25,180 84,240 (2) 30 196,880 (2) 7.5 2060 1226 1260 (2) 12" 73,740 39-1/4" 9' 8-5/8" 7' 2-1/4" 16' 10-7/8"
eco-ATW 20-5N18 58,020 25,340 84,560 (2) 40 213,390 (2) 7.5 2060 1226 1260 (2) 12" 74,060 39-1/4" 9' 8-5/8" 7' 2-1/4" 16' 10-7/8"
eco-ATW 20-6I18 65,020 28,840 93,540 (2) 10 133,480 (2) 7.5 2060 1464 1260 (2) 12" 83,040 47-3/4" 10' 5-1/8" 7' 2-1/4" 17' 7-3/8"
eco-ATW 20-6J18 65,280 28,970 93,800 (2) 15 152,790 (2) 7.5 2060 1464 1260 (2) 12" 83,300 47-3/4" 10' 5-1/8" 7' 2-1/4" 17' 7-3/8"
eco-ATW 20-6K18 65,400 29,030 93,920 (2) 20 168,170 (2) 7.5 2060 1464 1260 (2) 12" 83,420 47-3/4" 10' 5-1/8" 7' 2-1/4" 17' 7-3/8"
eco-ATW 20-6L18 65,460 29,060 93,980 (2) 25 181,150 (2) 7.5 2060 1464 1260 (2) 12" 83,480 47-3/4" 10' 5-1/8" 7' 2-1/4" 17' 7-3/8"
eco-ATW 20-6M18 65,560 29,110 94,080 (2) 30 190,790 (2) 7.5 2060 1464 1260 (2) 12" 83,580 47-3/4" 10' 5-1/8" 7' 2-1/4" 17' 7-3/8"
eco-ATW 20-6N18 65,880 29,270 94,400 (2) 40 206,790 (2) 7.5 2060 1464 1260 (2) 12" 83,900 47-3/4" 10' 5-1/8" 7' 2-1/4" 17' 7-3/8"
42
† Model Numbers end in “-Z” for units with Series Flow piping configuration. Series Flow units may require additional coil connections and will require
crossover piping. Model numbers will include “R” for units with Low Sound Fan(s) and “S” for units with an option that negates CTI certification.
†† Heaviest section is the coil/fan section.
* Gallons shown is water in suspension in unit and piping. Allow for additional water in bottom of remote sump to cover pump suction and strainer
during operation (12” would normally be sufficient).
When a remote sump arrangement is selected, the spray pump, suction strainer and associated piping are omitted; the unit is provided with an
oversized outlet to facilitate drainage to the remote sump.
Unit dimensions and coil connections may vary slightly from catalog. See factory certified prints for dimensions, quantity of coil connections, and
piping configuration. Coil connections are 4” bevel for weld (BFW). Other connection types such as grooved for mechanical coupling or flanged are
also available as options.