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^ The steam coils in models 65 and 75 are not type 5. They are type 8 coils with 1" diameter tubes on 3" centers.
* The CFM range for cooling and heating starts at a low of about 400 fpm through small coil.
The maximum CFM for cooling is at no more than 550 fpm through a large coil. The maximum CFM for heating
is at no more than 900 fpm through a large coil. The fan tables are on pages 24 through 29.
Fan Type Bearings Coils Filters
FC = Forward curve fan (Ball Type) FH X FL 1-24 X 24 Means one 24" by 24 “ filter
AF = Airfoil fan C = Cartridge FH = Finned Height , inches
Shaft Diameter is inches PB = Pillow Block FL = Finned Length, inches
TH = Tubes High
FACE AREA is in Square Feet.
Refrigerant can be either direct expansion, heat reclaim , or condenser coil.
Unit Size
Description 20 26 34 41 50 65 75
CFM Range*
Cooling 6400-10600 8500-14000 10600-18500 13400-22200 17100-26800 22400-35500 25800-41200
Heating & Ventilating 6400-19000 8500-19000 10600-24000 13400-32000 17100-31000 22400-43000 25800-43000
Fan Type & Shaft Diameter @ Bearing
FC, Low Pres. inches — — — — — — —
FC, Med. Pres. inches 1 7/16—PB 1 7/16—PB 1 11/16—PB 1 15/16—PB — — —
AF, shaft dia. (in) @ bearing 1 7/16—PB 1 7/16—PB 1 11/16—PB 2 3/16—PB 2 7/16—PB 2 11/16—PB 2 11/16—PB
Type 5 Coils
Large FH X FL 36.00X77 36.00X102 48.00X102 57.00X102 66.00X108 75.00X124 87.00X124
Refrigerant TH 24T 24T 32T 38T 44T 50T 58T
and Water Coils FACE AREA 19.25 25.50 34.00 40.38 49.50 64.58 74.91
Small FH X FL 30.00X77 30.00X102 39.00X102 45.00X102 54.00X108 60.00X124 69.00X124
Refrigerant TH 20T 20T 26T 30T 36T 40T 46T
and Water Coils FACE AREA 16.04 21.25 27.63 31.88 40.50 51.67 59.42
Large Type 5 FH X FL 36X77 36X102 48X102 57.0X102 63.0X108 72.0X124^ 84.0X124^
Steam Coils^ TH 24T 24T 32T 38T 42T 24T 28T
FACE AREA 19.25 25.50 34.00 40.38 47.25 62.00 72.33
Small Type 5 FH X FL 28.5X77 28.5X102 37.5X102 43.5X102 51X108 60X124^ 66X124^
Steam Coils^ TH 19T 19T 25T 29T 34T 20T 22T
FACE AREA 12.84 20.19 26.56 30.81 38.25 51.67 56.83
Type A Coils
Large FH X FL 37.50X77 37.50X102 47.50X102 57.50X102 67.5X108 75X124 87.5X124
Refrigerant TH 30T 30T 38T 46T 54T 60T 70T
and Water Coils FACE AREA 20.05 26.56 33.65 40.73 50.63 64.58 75.35
Small FH X FL 30X77 30X102 37.5X102 45X102 55X108 60X124 70X124
Refrigerant TH 24T 24T 30T 36T 44T 48T 56T
and Water Coils FACE AREA 16.04 21.25 26.56 31.89 41.25 51.67 60.23
Filters:
Area in Sq. Ft. 24.44 31.11 38.89 46.67 54.40 73.33 82.50
Flat 4-16 X 20
Section 4-16 X 25
Quantity and 6-16 X 20 4-16 X 20 4-16 X 25 6-16 x 20 7-16 X 20 8-16 x 20 10-20 X 20
size 4-20 X 20 8-20 X 20 8-20 X 25 12-20 x 20 14-16 X 25 20-20 x 20 10-20 X 25
High Area in Sq. Ft. 31.94 40.28 64.44 80.56 104.17 137.50 160.42
Capacity
Section Quantity and 4-16 X 25 10-20 X 25 4-16 X 20 4-16 X 25 30-20 X 25 12-16 X 25 14-16 X 25
size 6-20 X 25 2-16 X 25 20-20 X 20 20-20 X 25 30-20 X 25 35-20 X 25
High Area in Sq. Ft. 24.00 30.00 40.00 50.00 60.00 66.00 88.00
Efficiency
Filter Quantity and 4-24 X 24 5-24 X 24 10-24 X 24 10-24 X 24 15-24 X 24 15-24 X 24 20-24 X 24
Section size 4-12 X 24 5-12 X 24 5-12 X 24 3-12 X 24 4-12 X 24
Physical Data