MAC 10
®
IQ
Fan Filter Unit
18
Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance
I n s t a l l a t i o n & S e r v i c e M a n u a l
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Service: RSR/E Motor Removal and Installation
Note: Minimum 2 person project.
Tools Required: 3/16 Ball Driver, Phillips screw bit, Head Driver, Battery Operated Drill, (2) 8” adjustable wrenches, 10 mm
hex head wrench, #2 standard screwdriver, and slip joint pliers
Step 1.
To gain access to the motor, remove the gel seal filter.
Step 2.
Prior to removing motor/blower assembly, remove blower wheel to expose motor connectors on motor. Using
an adjustable wrench loosen the two set screws that attach the blower wheel to the motor shaft. Disconnect the two pin
connectors from the motor.
Step 3.
While supporting the motor blower assembly from below, remove the six screws on the underside of the venturi ring
and lower the assembly. (See Figure 7). Note the baffle does not have to be removed to remove the motor/blower assembly.
Step 4.
Before removal of the motor mount bracket, measure the precise location of the bracket on the motor. Remove the
bracket.
Step 5.
Replace with the new motor and reassemble by reversing the above steps. Set the location of the motor mount
bracket as measured (see above Step 6). Set the spacing at 0.25” (6.35 mm) clearance between the blower and the upper
motor plate/prefilter frame creating a 0.11” (2.80 mm) overlap between the wheel and the venturi ring. When reinstalling the
assembly, align the plate to insure that the leads will reach the electrical box.
WARNING
DISCONNECT THE UNIT FROM THE ELECTRICAL
POWER SOURCE BEFORE ATTEMPTING
ANY SERVICE
WARNING
ELECTRICAL SERVICE SHOULD ONLY
BE PERFORMED BY A LICENSED
OR QUALIFIED ELECTRICIAN.
Motor/Electrical Removal
Motor Assembly
Electrical connectors
located in inner
prefilter wall
Plenum
Gel Seal Filter
Motor/Blower
Assy
Blower
Wheel
Venturi
Ring
Motor
Machine Screw
and washer
Grommet
Wellnut
Screen