Hessaire 8GM User manual

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Please read and save these instructions. Read carefully before attempting
to install, operate or maintain the equipment described within this manual.
Carefully follow all safety information.
Save this manual for future reference.
Model # ___________________________ Purchase Date:______________
Guard Mounted Exhaust Fan Manual
Thermostat Included With Select Models
Sizes: 8” - 36” • 115V/60HZ • UL/cUL 705
Models Covered—Without Thermostat
8GM, 10GM, 12GM, 14GM, 16GM,
18GM, 20GM, 24GM, 30GM, 36GM
Index
General Safety / Installation…………………………………………………….……2
Specifications / Thermostat………………..…………….……………….…………..3
Parts / Maintenance / Troubleshooting……………….…………………….……….4
Models Covered—Thermostat Included
8GM-TH, 10GM-TH, 12GM-TH, 14GM-TH,
16GM-TH, 18GM-TH, 20GM-TH, 24GM-TH
Tools/Materials Needed:
• Drill/drill bits
• Ratchet/Socket set
• Mounting Fasteners
Contents:
• Exhaust Fan (1)
• Instruction Manual (1)
+
General Safety Instructions
Warning:
Before installing or servicing, disconnect all power. Keep hands and body parts
clear of all moving parts when installing or servicing.
Read and follow all instructions, cautions and warnings. Failure to do so could result in
personal injury, death or property damage.
Electrical connections, installation and maintenance must be done by qualified
personnel in accordance with all applicable codes. Unit must be adequately grounded.
To reduce the risk of fire or electrical shock, do not expose this fan to water or touch
electrically live components.
Free rotation of the propeller is critical. It must not touch any part of the guard or
opening framework.
Ensure that all power cords do not come in contact with any sharp edges, hot surfaces
or chemicals. Immediately replace any damaged cords.
Keep hands and body parts clear of all moving parts when installing or servicing.
Inspection
Fan Installation & Operation Tips
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 make
sure that all bolts, screws and set screws are securely tightened and have not become
loose during transit. Retighten as required.
Caution: Before operating your new fan, check blade for proper torque,
check all fasteners for tightness. Ensure fan blade is not obstructed.
For exhaust opening dimensions, refer to rough-in opening dimensions shown in the
specifications table in this manual.
Position the fan for desired airflow. Refer to fan mounting orientation in this manual.
Ensure the fan is fastened securely to the wall to avoid excess “rattling” or vibration.
Fasteners not included.
Refer to motor nameplate for wiring diagram.
Ensure that the area in front of and behind the fan is clear of any objects that may inter-
fere with airflow.
Adequate intake air must be available to the fan for proper exhausting of air.
It is recommended to use fixed vents or screen on exterior of building to keep out ele-
ments and/or pests.
Check for excessive vibration while fan is running. If excessive vibration is noticed,
refer to troubleshooting chart in this manual.
When using speed controls on the variable speed capable models, it is recommended
to operate at no less than 50% of line voltage. Controls sold separately.
Variable speed controls should be installed by a qualified electrician.
“-TH” models include thermostat.

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Performance/Specifications (Models Without Thermostat)
Model:
High
CFM
Area
Cov.
Sq Ft
Prop
Dia.
In.
HP Ph Volts High
Amps Spd
Rough-In
Opening
Dia. In.
Dim.
A
In.
Dim.
B
In.
Dim.
C
In.
8GM 360 540 8 1/25 1 115 .6 Var. Cap. 8.5 7.38 8.38 6
10GM 770 1155 10 1/25 1 115 .6 Var. Cap. 10.5 8.75 11.38 6
12GM 1100 1650 12 1/15 1 115 1.0 Var. Cap. 12.5" 10.25 13.50 7
14GM 1600 2400 14 1/10 1 115 1.0 Var. Cap. 14.5 12.20 15.75 7
16GM 1700 2550 16 1/10 1 115 1.0 Var. Cap. 16.5 12.94 17.25 7
18GM 2000 3000 18 1/10 1 115 1.0 Var. Cap. 18.5 15.44 19.81 7
20GM 3700 5500 20 1/4 1 115 2.8 Var. Cap. 20.5 16.75 21.81 12
24GM 4600 6500 24 1/3 1 115 3.2 Var. Cap. 24.5 19.75 25.81 12
30GM 6700 9000 30 1/3 1 115 3.8 1 30.5 - 31.75 13
36GM 9600 12500 36 1/2 1 115 5.6 1 36.5 - 37.75 13
Wall Mount Junction Box
Extendable Temperature
Probe Up to 48”
Model:
Thermostat
Included
High
CFM
Area
Cov.
Sq Ft
Prop
Dia.
In.
HP Ph Volts High
Amps
Thermostat Rough-In
Opening
Dia. In.
Dim.
A
In.
Dim.
B
In.
Dim.
C
In.
Electrical
Rating
Probe
Length
In.
8GM-TH 360 540 8 1/25 1 115 .6 16A 400V 48 8.5 7.38 8.38 6
10GM-TH 770 1155 10 1/25 1 115 .6 16A 400V 48 10.5 8.75 11.38 6
12GM-TH 1100 1650 12 1/15 1 115 1.0 16A 400V 48 12.5 10.25 13.50 7
14GM-TH 1600 2400 14 1/10 1 115 1.0 16A 400V 48 14.5 12.20 15.75 7
16GM-TH 1700 2550 16 1/10 1 115 1.0 16A 400V 48 16.5 12.94 17.25 7
18GM-TH 2000 3000 18 1/10 1 115 1.0 16A 400V 48 18.5 15.44 19.81 7
20GM-TH 3700 5500 20 1/4 1 115 2.8 16A 400V 48 20.5 16.75 21.81 12
24GM-TH 4600 6500 24 1/3 1 115 3.2 16A 400V 48 24.5 19.75 25.81 12
Performance/Specifications (Models Including Thermostat)
Thermostat
Model: TH120C
Rough-In Dims.
Wiring
Diagram
Black (line)
White (common)
Green (ground)
Motor
Thermostat
Control
Incoming
Power
Black
P1
120 VAC
Variable Speed Capable Models DO NOT include control. Variable speed control sold separately.
A B
A C
2 1
Troubleshooting Guide
Propeller Motor
Guard
Model: Prop Guard Motor
8GM 9001655 G7SF E030-4
10GM 9001656 G10SF E030-4
12GM 9001657 G12SF E035-4
14GM 9001695 G14SF E075-4
16GM 9001658 G16SF E075-4
18GM 9001959 G18SF E075-6
20GM 9001652 G20SF B180-4
24GM 9001665 G24SF B180-6
30GM 9001666 G30SF B250-8F
36GM 9001667 G36SF B370-8F
Model: Prop Guard Motor Thermostat
8GM-TH 9001655 G7SF E030-4 TH120C
10GM-TH 9001656 G10SF E030-4 TH120C
12GM-TH 9001657 G12SF E035-4 TH120C
14GM-TH 9001695 G14SF E075-4 TH120C
16GM-TH 9001658 G16SF E075-4 TH120C
18GM-TH 9001959 G18SF E075-6 TH120C
20GM-TH 9001652 G20SF B180-4 TH120C
24GM-TH 9001665 G24SF B180-6 TH120C
Periodic maintenance and component cleaning schedules should be set to assure
reliability and performance of the fan.
Periodically check for excessive vibration while fan is running.
Periodically inspect and tighten all set screws and hardware—check torque on prop.
Assure all mounting hardware remains properly secured.
Motors feature permanently sealed ball bearings and require no further lubrication.
Note: Please contact the dealer/distributor where you purchased the fan from
with any questions regarding the fan, the manual or replacement parts.
Maintenance
Replacement Parts Breakdown
Thermostat
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. Propeller is bent or hitting housing 1. Free propeller of obstruction/replace propeller
2. Fan not securely anchored 2. Secure properly
3. Bad/noisy bearings 3. 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