• Cold weather economizer for interior cooling loads
• HVAC and computer room air conditioning
• Industrial cooling applications
- Cutting fl uids
- Machinery cooling jackets
- Electrical gear
Optional Features:
• Horizontal air discharge confi guration
• Aluminum Casing (galvanized frame and legs)
• Coated or Copper fi ns
• 8 Pole 825 rpm motors
• Flip top hinged fan panels
• Removable side access panels
• Control panel mounting location
• Motor fusing
• Circuit breakers
• Fan control toggle switches
• Fused disconnect switch
2
FS/FD SERIES
Table of Contents
Nomenclature
Features and Options
Performance Range Tables — 1140 RPM Models
Performance Range Tables — 825 RPM Models
Fan and Motor Data
Sound Pressure Options
Electrical Control Options
Typical Wiring Diagrams — Single Phase
Typical Wiring Diagrams — Three Phase
Detail Photographs and Features
Weights and Volumes
Connection Sizes
Fan Motor Amps
Dimensional Drawings
Standard Specifications
General Construction and Configuration
Vertical Air Discharge Configuration
Horizontal Air Discharge ConfigurationOptOpt
Galvanized Steel Frame and CasingStdStd
Embossed Aluminum Casing (Galvanized Steel Frame and Legs)OptOpt
Heavy Gauge Galvanized Steel Legs (Vert. Air Disch): 18" Leg Length15" (Std)Std
30" or Custom Leg LengthAN/AOpt
Fluid Cooler Coil
16 Gauge Galvanized Steel Casing and Aluminum Tube SheetsStdStd
Aluminum Fins Mechanically Expanded into Copper TubesStdStd
Special Fin Materials: Up to .010" Thick AluminumOptOpt
Copper Fin StockOptOpt
Polyester-Coated Fin StockOptOpt
ElectroFin™ and Phenolic-Coated CoilsOptOpt
Fan Section
6-Pole (1140 RPM), 1 -Phase (PSC) or 3-Phase Fan Motors: Open TypeEStdStd
All Others — Welded heavy-gauge rod mounting framesN/AStd
Fan Blades - Heavy Gauge Aluminum Blades, Painted Steel HubsStdStd
Fully Baffled Fan ModulesStdStd
'Flip Top' Hinged Fan Panels - Easy Access for Coil Cleaning and Fan/Motor ServiceN/AOpt
Control Panel
Weather-Tight Galvanized Steel Enclosure with All Motor Leads PulledCStdStd
Mounting Location: Header EndStdStd
Temperature Fan Cycling - Individual- or Paired-Fan Contactors (Must specify)OptOpt
Custom Fan Cycling Wiring and LogicOptOpt
Motor Fusing - Individually or in PairsOptOpt
Circuit BreakersBOptOpt
Fan Control Circuit Toggle SwitchesOptOpt
Control TransformerBOptOpt
Fused Disconnect Switch (Mounted)BOptOpt
Shipping
Vertical Discharge Models FS-101A thru 203ADStd—
Vertical Discharge Models All Others — Legs are collapsed for shipping—Std
and must be re-extended during installation
Horizontal Discharge Models
Legs Disassembled - Unit is Cartoned or CratedSee Note DSee Note A
101 A— 203 A FD -40 1B— 120 3B
StdStd
Notes
A. Contact factory for information
B. Not UL Listed
C. Units which are fi ve and six fans long are furnished with motor leads wired to 3-Phase Terminal Blocks.
D. Legs disassembled; units shipped in carton or crate. Models FS-101A thru 203A can be either horizontal or vertical
depending on method of leg assembly.
E. 1-Phase PSC Motors available on models FS-101A thru 207A only.
4
FS/FD SERIES
Table 1: Range of Performance † - 1140 RPM—6-Pole Fans
Single Fan-Width Units
Model
No.
MinimumMaximum
MBH ∆T GPM MBH ∆TGPM
FSS
101A 26.8 6.0 10 30.4 3.2 20
102A 42.0 9.2 10 48.0 5.2 20
103A 63.6 14.0 10 84.0 6.4 30
104A 80.0 17.6 10 106.8 4.8 50
201A 100.0 22.4 10 172.4 5.6 70
202A 122.4 27.2 10 213.6 4.8 100
203A 169.2 18.8 20 233.2 3.6 140
204A 182.4 20.4 20 272.8 6.0 100
205A 196.4 22.0 20 306.8 6.8 100
206A 224.4 25.2 20 368.0 5.2 160
207A 238.8 26.8 20 407.2 5.6 160
Single Fan-Width UnitsDouble Fan-Width Units
Model
No.
MinimumMaximum
MBH ∆T GPM MBH ∆TGPM
FSS
208A 261.2 29.2 20 507.6 7.2 160
209A 337.6 25.2 30 545.6 7.6 160
210A 357.2 26.4 30 590.4 6.0 220
211A 395.6 29.2 30 668.9 5.3 280
301A 419.6 31.2 30 826.0 7.2 260
302A 513.6 28.8 40 887.2 5.6 340
303A 535.6 30.0 40 962.8 5.2 400
401A 556.0 30.8 40 1044.4 10.4 220
402A 588.0 32.8 40 1142.4 8.4 300
403A 607.6 34.0 40 1258.4 7.2 380
404A 620.8 34.8 40 1306.4 7.6 380
501A 636.8 35.6 40 1382.8 10.8 280
502A 652.8 36.4 40 1538.0 9.6 360
503A 795.2 35.6 50 1598.4 10.0 360
601A 893.2
1030.4
602A 32.8 70 1780.4 12.4 320
1181.2
603A 29.2 90 1852.0 12.8 320
33.2 60 1598.0 13.6 260
Model
No.
FDS
401 B 470.0 34.8 30 1048.8 10.4 220
402B 590.0 32.8 40 1145.2 8.4 300
403B 623.9 34.8 40 1289.2 5.2 550
404B 637.2 35.6 40 1336.0 5.4 550
601 B 735.2 32.8 50 1643.2 7.2 500
602B 782.0 34.8 50 1730.4 6.8 550
603B 924.4 34.4 60 1847.2 9.2 450
801 B 1010.432.0 70 2097.6 10.4 450
802B 1066.434.0 70 2256.6 9.2 550
803B 1122.435.6 70 2413.6 9.6 550
804B 1142.436.4 70 2508.0 10.0 550
1001B 1273.235.6 80 2756.8 11.2 550
1002B 1436.035.6 90 2950.4 12.0 550
1003B 1590.435.6 100 3068.8 12.4 550
1201B 1786.433.2 120 3168.8 14.0 500
1202B 1845.234.4 120 3460.5 14.0 550
1203B 2113.333.7 140 3601.6 14.6 550
MinimumMaximum
† 100° F. Entering air temperature; 140° F. Entering fl uid temperature; 40% Ethylene Glycol
Performance ranges are given to suggest approximate capacity of units. Contact factory for
computer-rated units before fi nal selection.
Please Specify: Capacity or leaving fl uid temperature
Fluid type & concentration
Entering fl uid temperature
Flow rate in GPM
Entering air temperature
MBH ∆T GPM MBH ∆TGPM
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