Hessaire 24D370 User manual

Instruction Manual
Galvanized Box Fans—Direct Drive
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: _________________________ Date: 8/6/18
Form: HV0021 Version 3
Model Numbers Covered:
24D370, 36D370-N, 36D370T-N,
36D370S-N, 48D750-N,
48D750T-N
Getting Started
Tools/Materials Needed:
• Drill/drill bits
• 5/16” nut driver
• Construction screws
• Caulk or sealant
Contents:
• Galvanized box fan(1)
• Instruction manual(1)
Inspection:
After unpacking your exhaust 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. Rotate propeller by hand to assure it turns
freely.
General Safety Instructions
Danger: Before installing or servicing, always lock out and tag power source. Do not rely on a switch as the only means
of disconnecting power. Failure to disconnect power can result in fire, electrical shock or serious injury. Motor will restart without
warning after thermal protector trips. Do not touch an operating motor as it may be hot enough to cause injury. Do not place any body
parts or objects in fan or drive components while fan is connected to a power source.
Warning:
1. Read and follow all instructions, cautions, dangers and warnings. Failure to do so could result in personal injury, death or property damage.
2. Make sure the electrical power source conforms to the requirement of the fan(s) as well as local codes.
3. Electrical connections, installation and maintenance must be done by qualified electrical personnel in accordance with all applicable codes and
ordinances.
4. Unit must be adequately grounded.
5. To reduce the risk of fire or electrical shock, do not expose this fan to water.
6. Do not touch electrically live components.
7. Free rotation of the propeller is critical. It must not touch any part of the venturi or framework.
8. Assure that all power cords do not come in contact with any sharp edges, hot surfaces or chemicals. Immediately replace any damaged cords.
Caution: OSHA requires OSHA compliant guards when fan is installed within 7ft of the floor or working level.

Specifications
Performance
Fan Installation
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.
For framing dimensions, refer to rough-in opening height and width shown in the specifications above.
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.
Maintenance
Periodic maintenance schedules should be set to assure reliability and performance of the fan. This maintenance should included inspection of all
fasteners, propeller torque and proper cleaning of the complete fan assembly.
Check for excessive vibration while fan is running.
Periodically inspect and tighten all set screws and hardware.
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.
CFM CFM/Watt
Model HP F.L.A. Volt. Ph Hz Motor
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
0.00"
SP
24D370 1/2 5.6/2.8 115/230 160 1100 5,618 5,192 4,845 4,505 11.3 10.2 9.3 8.4 73.5
36D370-N 1/2 5.2/2.6 115/230 160 825 11,077 10,217 9,381 8,557 21.1 18.6 16.4 14.5 76
36D370S-N1/2 5.2/2.6 115/230 160 825 10,525 9,698 8,910 8,130 20.6 18.2 15.9 14 77
36D370T-N1/2 2.2/1.1 230/460 360 825 11,150 10,280 9,450 9,625 21 18.6 16.3 14.4 76
48D750-N111.0/5.5 115/230 160 850 18,926 17,481 15,973 14,256 19.9 17.8 15.8 13.7 80
48D750T-N14.6/2.3 230/460 360 850 19,001 17,507 16,097 14,625 21.6 19 16.9 14.9 80
Dimension (In.) Rough-in Opening
Model Prop Dia. A B D Height Width Ship. Wt Ship. Dims.C
24D370 24” 29 1/4 14 1/2 3/8 30 30 88 33x18x35 -
36D370-N36” 40 1/8 14 3/8 40 3/4 40 3/4 118 44x18x47 -
36D370S-N36” 40 1/8 14 3/8 40 3/4 40 3/4 138 48x18x4716
36D370T-N36” 40 1/8 14 3/8 40 3/4 40 3/4 118 44x18x47 -
48D750-N48” 52 1/8 17 3/8 52 7/8 52 7/8 165 56x20x58 -
48D750T-N48” 52 1/8 17 3/8 52 7/8 52 7/8 168 56x20x58 -

Troubleshooting Guide
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
Repair Parts
Illustration
Note:
Aluminum discharge
shutter not shown.
Ref No Description 24D370 36D370-N48D750-N48D750T-NQty36D370S-N36D370T-N
1 Intake & discharge screen 24SCREEN-N 36SCREEN-N 48SCREEN-N 48SCREEN-N 2,136SCREEN-N 36SCREEN-N
2 Self tapping screw S002 S002 S002 S002 48S002 S002
3 Clip for screen CLIP-SC CLIP-SC CLIP-SC CLIP-SC 24CLIP-SC CLIP-SC
4 Motor B370-6E B370-8E A750-8VE A750-8TVE 1B370-8E B370-8TE
5 Upright frame piece N/A N/A N/A N/A 2N/A N/A
6(A,B,C,D) Side panel piece N/A N/A N/A N/A 4N/A N/A
7 Locking nut, 5/16-18 N004 N004 N004 N004 8N004 N004
8 Hex head bolt, 5/16-18X1" B011 B011 B011 B011 4B011 B011
9 Venturi panel N/A N/A N/A N/A 1N/A N/A
10 Carriage bolt, 5/16-18X3/4" B014 B014 B014 B014 4B014 B014
11 Locking nut, 10-32 N002 N002 N/A N/A 4N002 N002
12 Propeller 9001566 9001481 9001567 9001567 19001481 9001481
13 Motor mounting plate N/A N/A N/A N/A 1N/A N/A
- Alum discharge shutter N/A N/A N/A N/A 1SA36DX N/A

Hessaire Products, Inc. provides the following limited warranty which is valid from the date of the invoice to the original purchaser on all products
that are tested and/or verified by Hessaire to be defective in materials and/or workmanship.
This limited warranty applies only to products used for the intended purpose under normal use. A two year limited warranty applies to all products
unless noted as an exception below.
This warranty does not cover failures, defects or malfunctions due to the following:
• Normal wear and tear
• Improper installation and operation, installation and operation not in accordance with instructions
• Misuse, abuse, negligence, alteration or accident
• Freight or transportation damage
• Product modifications
• Neglect or lack of maintenance
In addition, this warranty does not cover:
• Return freight or delivery costs
• Removal, installation and associated labor costs
• Loss of time, inconvenience, labor, use of product or other consequential or incidental damages
• Cosmetic rust, corrosion, staining
• Products missing proper labeling or nameplates
Terms:
Defective products will be repaired or replaced at the option of Hessaire. For installed, assembled fans, Hessaire will provide replacement parts
only and will not replace entire assembly.
Defective products shall only be returned to Hessaire with the approval of Hessaire and at the customer’s expense.
Replacement products or repair parts under warranty will be shipped to the customer at the expense of Hessaire products.
Field repairs/replacements will be performed by the customer at the customer’s expense.
Products with warranty periods other than the standard two year limited warranty:
• 12HAFO, 20HAFO
• 18” non-stainless fans
• All aluminum intake shutters
• Shutter opening gear motor kit
• Inflation blowers and related accessories
• Evaporative coolers
• All replacement parts
Effective date: January 1, 2016
Product Warranty Policy