Hessaire 36SW550 User manual

MH-0003 Rev. 082719 www.hessaire.com
Tools/Materials Needed:
• Drill/drill bits/phillips bit
• Ratchet/Socket set
Contents:
• Exhaust Fan(1)
• Instruction manual(1)
Instruction Manual: Galvanized Slant Wall
Exhaust Fans - Belt Driven
Model Numbers Covered:
36SW550, 425SW550, 425SW750, 425SW750-2, 48SW750-N,
48SW750-2N, 485SW750, 485SW750-2, 54SW750
Please read and save these instructions. Read carefully before attempting to assemble, install, operate
or maintain the equipment described within this manual. Carefully follow all safety information.
Save this manual for future reference.
Model # __________________________________________ Purchase Date:____________________
General Safety Instructions
Warning:
1. Before installing or servicing, disconnect all power. Keep hands and body parts clear of all moving parts when installing or servicing.
2. Read and follow all instructions, cautions, dangers and warnings. Failure to do so could result in personal injury, death or property damage.
3. Make sure the electrical power source conforms to the requirement of the fan(s) as well as local codes.
4. Electrical connections, installation and maintenance must be done by qualified electrical personnel in accordance with all applicable codes.
5. Unit must be adequately grounded.
6. To reduce the risk of fire or electrical shock, do not expose this fan to water.
7. Do not touch electrically live components.
8. Free rotation of the propeller is critical. It must not touch any part of the venturi, framework or drive components.
9. Assure that all power cords do not come in contact with any sharp edges, hot surfaces or chemicals. Immediately replace any damaged cords.
10. Keep hands and body parts clear of all moving parts when installing or servicing.
Specifications(See Dimension Key On Following Page)
Dimension (In.) Rough-in Opening
Model Prop
Dia.
# Of
Wings
A
(In.)
B
(In.)
AA
(In.)
BB
(In.)
C
(In.)
D
(In.)
E
(In.)
F
(In.) Height Width Ship Wt
Ship.
Dims.
36SW550 36” 4 44 45 1/4 39 1/2 40 1/8 27 16 3/4 4 1/2 45 3/4 42 7/8 40 7/8 185 48x32x51
425SW550 42” 5 50 51 1/2 46 47 1/2 29 1/4 17 1/2 3 48 49 1/4 47 275 54x34x54
425SW750 42” 5 50 51 1/2 46 47 1/2 29 1/4 17 1/2 3 48 49 1/4 47 285 54x34x54
425SW750-2 42” 5 50 51 1/2 46 47 1/2 29 1/4 17 1/2 3 48 49 1/4 47 285 54x34x54
48SW750-N 48” 3 56 57 7/8 51 1/2 53 1/4 29 1/4 15 5/8 3 58 1/8 55 1/2 52 7/8 289 60x34x62
48SW750-2N 48” 3 56 57 7/8 51 1/2 53 1/4 29 1/4 15 5/8 3 58 1/8 55 1/2 52 7/8 289 60x34x62
485SW750 48” 5 56 57 7/8 51 1/2 53 1/4 29 1/4 15 5/8 3 58 1/8 55 1/2 52 7/8 292 60x34x62
485SW750-2 48” 5 56 57 7/8 51 1/2 53 1/4 29 1/4 15 5/8 3 58 1/8 55 1/2 52 7/8 292 60x34x62
54SW750 54” 3 62 5/8 64 3/4 58 1/8 60 1/8 34 5/8 19 1/2 4 1/8 66 62 1/2 59 1/2 336 69x36x72
Caution: OSHA requires OSHA compliant guards within 7ft of the floor or working level.
Inspection:
After unpacking your fan, carefully inspect for any damage that may have occurred during transit. Inspect for loose, missing or damaged parts.
If there is physical damage to any parts of the fan, a freight claim must be filed with the carrier. Check to assure that all bolts, screws and set
screws are securely tightened and have not become loose during transit. Retighten as required.
Fan Installation Tips:
For framing dimensions, refer to rough-in opening height and width shown in the specifications on the previous page.
Position the fan for desired airflow. Air will discharge on the side of the fan facing the propeller.
Assure the fan is fastened securely in the opening to avoid excess “rattling” or vibration using proper fasteners. Fasteners not included.
Refer to motor nameplate for wiring diagram.

MH-0003 Rev. 082719 www.hessaire.com
Dimension Key
Symptom Possible Cause(s) Corrective Action
Fan will not start 1. Tripped circuit breaker 1. Reset circuit breaker
2. Defective motor 2. Repair or replace
3. Incorrectly wired 3. Shut off power, check for proper connections
4. Electricity turned off 4. Contact local power company
Excessive noise or vibration 1. Blade is hitting housing 1. Free blade of obstruction
2. Blade is bent 2. Replace blade
3. Fan not securely anchored 3. Secure properly
4. Bad/noisy bearings 4. Replace motor
Insufficient airflow 1. Incorrect voltage applied 1. Wire properly
2. Defective motor 2. Replace motor
3. Propeller is damaged 3. Replace propeller
4. Blocked Airflow 4. Remove obstructions
5. Not enough intake air 5. Add additional air intake openings
6. Fan is dirty 6. Clean fan guards/screens, motor and propeller
Motor overheats or trips out 1. Over/under line voltage 1. Contact local power company
2. Defective motor 2. Replace motor
3. Fan is dirty. 3. Clean fan guards/screens, motor and propeller
4. Not enough intake air 4. Add additional air intake openings
Troubleshooting Guide
Performance
High CFM CFM/Watt
Model HP F.L.A. Volt. Ph Hz Fan
RPM
0.00"
SP
0.05"
SP
0.10"
SP
0.15"
SP
0.00"
SP
0.05"
SP
0.10"
SP
0.15"
SP
Db @
7ft
Spd Bess Labs
Test #
36SW550 3/4 1 6.4/3.2 115/230 1 60 709 11,420 10,790 10,170 9480 19.5 17.6 15.9 14.2 73 16135
425SW550 3/4 1 6.4/3.2 115/230 1 60 465 13,207 11,993 10,747 9,698 21.2 18.1 15.3 13.4 70 -
425SW750 1 1 9.4/4.7 115/230 1 60 580 16,780 15,913 14,956 14,016 17.5 15.8 14.2 12.7 74 -
425SW750-2 1 2 7.0/3.5 230 1 60 565 16,277 15,436 14,507 13,596 17 15.3 13.8 12.3 73 -
48SW750-N 1 9.4/4.7 115/230 1 60 625 21,100 20,100 18,900 17,700 20.4 18.9 17.3 15.8 77.21 16140
48SW750-2N 1 7.0/3.5 230 1 60 595 20,780 19,700 18,750 17,400 20.1 18.7 17.1 15.6 77.12 -
485SW750 1 1 9.4/4.7 115/230 1 60 455 20,045 18,995 17,766 16,550 19.4 17.8 16.1 14.6 71 -
485SW750-2 1 2 7.0/3.5 230 1 60 440 19,444 18,425 18,605 16,054 18.8 17.3 15.6 14.2 70 -
54SW750 1 1 9.4/4.7 115/230 1 60 575 25,935 24,605 22,990 19,190 22.4 20.3 18.5 16.2 76.4 -
Maintenance
Periodic maintenance schedules should be set to assure reliability and performance of the fan.
Check for excessive vibration while fan is running.
Periodically inspect and tighten all set screws and hardware—check torque on propeller, bearings and pulleys.
Assure all mounting hardware, chains, etc. are properly secured.
Motors feature permanently sealed ball bearings and require no further lubrication.
The fan propeller should be periodically cleaned to assure proper balance and performance.
Grease pillow block bearings seasonally. Use caution not to apply too much grease as it may damage the seals.
Periodically check for proper pulley/belt alignment. See Fig. 1
If necessary, belt tensioner can be adjusted by loosening bolt on back of bracket and moving tensioner pulley arm. See Fig. 2
Note: Please contact the dealer/distributor where you purchased the fan from with any questions regarding the fan, manual
or if you are in need of replacement parts.
Caution: Before operating your new fan, check blade for proper torque, check all fasteners for tightness and assure
screens and/or shutters are securely in place.

MH-0003 Rev. 082719 www.hessaire.com
Fig 2
Fig 1
Ref
No Description 48SW750-N 48SW750-2N Qty425SW55036SW550 425SW750 425SW750-2 54SW750485SW750-2485SW750
1 Intake shutter SA48SW-N SA48SW-N 1SA42SWSA36SW-N SA42SW SA42SW SA54SWSA48SW-NSA48SW-N
2 Btm housing panel N/A N/A 1N/AN/A N/A N/A N/AN/AN/A
3 Left housing panel N/A N/A 1N/AN/A N/A N/A N/AN/AN/A
4 Right housing panel N/A N/A 1N/AN/A N/A N/A N/AN/AN/A
5 Top housing panel N/A N/A 1N/AN/A N/A N/A N/AN/AN/A
6 Motor A750-4CE A750-4/6CE 1A550-4CEA550-4CE A750-4CE A750-4/6CE A750-4CEA750-4/6CEA750-4CE
7 Motor plate N/A N/A 1N/AN/A N/A N/A N/AN/AN/A
8 V belt, cogged AX61 AX61 1AX56AX51 AX55 AX56 AX60--
10 Fan shaft, 1" FS7.5 FS7.5 1FS7.5FS7.5 FS7.5 FS7.5 FS7.5FS7.5FS7.5
11 Large drive pulley AL94 AL94 1AK114AL94 AK94 AK104 AL94AL94AL94
12 Horiz. frame piece N/A N/A 1N/AN/A N/A N/A N/AN/AN/A
13 Propeller 9001489 9001576 190013989001565 9001398 9001398 900157290015769001489
14 Venturi panel N/A N/A 1N/AN/A N/A N/A N/AN/AN/A
15 Discharge screen 48SCREEN-N 48SCREEN-N 142SCREEN36SCREEN 42SCREEN 42SCREEN 54SCREEN-N48SCREEN-N48SCREEN-N
16 Motor pulley AK3258 AK3258 1AK3058AK3958 AK2858 AK3258 AK3058--
17 Frame bracket, sm N/A N/A 2N/AN/A N/A N/A N/AN/AN/A
18 Frame bracket, lg N/A N/A 2N/AN/A N/A N/A N/AN/AN/A
19 Belt tensioner BTI BTI 1BTIBTI BTI BTI BTIBTIBTI
20 Tensioner bracket N/A N/A 1N/AN/A N/A N/A N/AN/AN/A
32 Bearing UCP205-16 UCP205.16 2UCP205-16UCP205-16 UCP205-16 UCP205-16 UCP205-16UCP205-16UCP205-16
Repair Parts Illustration

MH-0003 Rev. 082719 www.hessaire.com