Product Manual

ALX SERIES
SPUN ALUMINUM EXHAUSTERS
ALX-M-10_04_16 Page 5 of 6
FAN TROUBLESHOOTING
FAN MOTOR DIMENSIONAL
GUIDELINES
MOTOR MOUNTING
PROBLEM POSSIBLE ISSUE SOLUTION
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
Reduced airflow
Excessive noise/vibration
WARNING
MAKE SURE THE UNIT IS NOT CAPABLE OF OPERATION
DURING REPARATION.
A
D
C
B
FAN FRAME SIZES MAX "A"
MAX
"B"
MAX
"C"
MAX
"D"
RESILIENT
BASE
MAX SHEAVE
DIA.
ALX135UB/DB 48, 56 8.5 6.5 10.5 7 NO 5.5
ALX150UB/DB 48, 56 8.5 6.5 10.5 7 NO 5.5
ALX165UB/DB 48, 56, 143, 145 8.5 8 13 7 NO 5.5
ALX180UB/DB 48, 56, 143, 145 8.5 8 13 7 NO 5.5
ALX210UB/DB 56, 143, 145, 182, 184 11.5 11 12 8 YES 8
ALX245UB/DB 56, 143, 145, 182, 184 11.5 11 12 8 YES 8
FAN
MAX
"A"
MAX
"B"
MAX
"C"
C-FACE
ONLY
ALX105/120UD 14 14 8.5 56 FRAME
ALX105/120DD 10 10 7.5 56 FRAME
ALX135/150UD 15 15 15 56 FRAME
ALX135/150DD 15 15 15 56 FRAME
ALX165UD 16 16 15.5 56 FRAME
ALX165DD 16 16 15.5 56 FRAME
1 HP ADAPTER PLATE
48 OR 56 FRAME
BOTH SIDES
48, 56, 143-145 FRAME
48, 56, 143-145, 182-184 FRAME
ALX135/ALX150 ALX165/ALX180 ALX210/ALX245