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A2X SERIES
SPUN ALUMINUM EXHAUSTERS
UP-BLAST UL762 RESTAURANT EXHAUST INSTALLATION
VENTED CURB
MINIMUM 20"
FROM ROOF TOP
WELDED DUCT
BY OTHERS
RECOMMENDED
ROOF OPENING
PRE-START INSPECTION
1. Lock out all power sources.
2. Inspect all fasteners and set screws and tighten as required.
3. Inspect belt alignment and tension where applicable.
4. Confirm power source voltage and motor voltage are the same and that the motor is wired correctly.
5. Rotate the wheel to ensure that neither the fan blade nor the belts come into contact with the housing.
6. Inspect the fan and the ductwork to ensure they are free of debris.
7. Check to ensure that all guards and accessories are securely mounted.
START UP
Turn the fan on and inspect for the following:
1. Direction of rotation.
2. Improper motor amperage.
3. Excessive vibration.
4. Unusual noise.
5. Improper belt tension or alignment (only applicable on belt-drive unit).
If a problem is discovered shut off the fan and refer to the section on troubleshooting to discover the cause of the problem. The fan should
be inspected after 30 minutes, 8 hours & 24 hours of operation to ensure all fasteners are tight and belts are properly tensioned and aligned.
MAINTENANCE
Disconnect and secure to the OFF position all electrical power to the fan prior to inspection or servicing. Failure to comply with this safety
precaution could result in serious injury or death.
1. Ventilator should be checked at least once a year. For critical or severe applications a routine check every two to three months is
suggested.
2. Guard to be kept free of debris. Easily installed/removed using the integrated twist lock tabs. Gently twist the guard tab so that it slips
under the support arm to lock in place. Guard is easily removeable for fan servicing and cleaning. No tools are required.
3. When moving or installing a belt, don't force the belt over the sheave. Loosen the motor mount so that the belt can be easily slipped
over the sheave.
4. The belt, on belt driven units, should be removed and carefully checked for cracks, ply separation or irregular wear. A small
irregularity in the contact surface of the belt will result in noisy operation. If any of these defects are apparent the belt should
be replaced. At the same time check the sheaves for chips, dents or rough surfaces that could damage the belt.
5. The correct belt tension is important. Too tight a belt will result in excess bearing pressure, which can cause premature bearing failure
and may cause the motor to overload. Too loose a belt will result in slippage, which will burn out belts. Proper belt deflection should
be 1/64" (half way between sheave centers) for each inch of belt span when a force of approximately 5 lbs. is applied.
M-A2X 04/11/19
DISCONNECT MOUNTED
OUTSIDE OF THE HOUSING,
WIRED THROUGH THE VENT
TUBE BY OTHERS
WIRED TO POWER
BY OTHERS
GREASE
COLLECTOR
(OPTIONAL)
ROOF
DECK
UP-BLAST WALL MOUNTED UL762 RESTAURANT EXHAUST INSTALLATION
RECOMMENDED
WELDED DUCT
ROOF OPENING
BY OTHERS
WALL
WALL MOUNT BRACKET
(OPTIONAL)
DISCONNECT MOUNTED
OUTSIDE OF THE HOUSING,
WIRED THROUGH THE VENT TUBE
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