HVAC PRODUC S
HVAC PRODUC S
HVAC PRODUC S
ALX SERIES
SPUN ALUMINUM EXHAUSTERS
ALX-M-07_31_14
Page 4 of 5
WARNING
MAKE SURE THE UNIT IS NOT CAPABLE OF OPERATION DURING REPARATION.
FAN TROUBLESHOOTING
WARRANTY
CANARM Ltd.
warrants every new fan to be free of defects in material and workmanship to the extent that, within a period of one year
from the date of purchase
CANARM Ltd.
shall either repair or replace at
CANARM
’s option, any unit or part thereof, returned freight
prepaid, and found to be defective.
This warranty does not include any labour or transportation costs incidental to the removal and reinstallation of the unit at the user’s
premises.
Components repaired or replaced are warranted through the remainder of the original warranty period only; it is null and void in case of
alteration, accident, abuse, neglect, and operation not in accordance with instructions.
NOTICE:
No warranty claims will be honored by
CANARM Ltd.
unless prior authorization is obtained.
P
ROBLEM
P
O
SS
IBLE I
SS
U
E
S
OL
U
TION
Wheel rubbing inlet
Adjust wheel, loosen set screw(s) and move the wheel, acquiring
clearance between inlet and wheel, then re-tighten set screw(s)
Wheel unbalance
Check wheels for debris or dirt build up and clean when necessary
Object in rotation area or housing
Remove object
Motor compartment loose
Re-tighten the fasteners
Malfunction of electrical supply
Check supply voltage, fuse and switch
Malfunction of motor
Check wiring and overload protector
Motor overload/overheat
Wrong wheel rotation
Re-wire the motor to change direction of rotation
Damper Malfunction
Check opening side of back draft damper, check operation status of
controlled damper
Wrong wheel rotation
Re-wire the motor to change direction of rotation
Improper Duct System
Check obstruction of duct in the duct or dirty filter
Fan does not operate
Redu
c
ed airflow
Ex
c
essive noise/vibration
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.
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.
3.
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.
4
. 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.
5.
The belt alignment should be checked to be sure that the belt is running perpendicular to the rotating shafts. Motor and drive shafts
must be parallel.
6.
A periodic inspection of all fasteners should be carried out to ensure they have not loosened due to vibration. Particular attention
should be paid to fasteners attaching the wheel to the shaft and those attaching the shaft to the bearing.
MAINTENANCE
