Motor Bracket
Screws (x4)
Motorized
Impeller
Motor Mount Plate
Screws (x8)
Removal and Installation of the Variable Speed Motor
(SSLFHFD-FFU-RF-MEA)
WARNING!
Disconnect the unit from the electrical power source before attempting to service the unit.
Step 1 -- Using a flat screwdriver, release the face frame by rotating the fasteners a 1/4-turn
counter clockwise. Unhook the safety cables from the filter clips. Set the frame aside.
Step 2 -- Turn the unit off with the black button located on the face of the unit next to the display.
Step 3 -- Disconnect the unit at the power source or at the service panel in accordance with
OSHA (LOTO) practices and procedures.
Step 4 -- Remove the HEPA filter and set aside. See sections 2 and 3 for instructions.
Step 5 -- If equipped with an Airflow Sensor, make note of the plug into the sensor. Cut any zip-
ties holding the wire to the sensor bracket. Unplug the wire and move out of the way.
Step 6 -- Support the weight of the fan assembly and use a 7/16" driver to remove the eight (8)
motor mount plate screws.
Step 7 -- Carefully lower the motor assembly and disconnect the 3-pin power plug and the 4-pin
data plug.
Step 8 -- Remove the assembly from the uni. Remove the nuts holding the motor brackets to the
motor plate.
Step 9 -- Use a 4mm hex driver to remove the four (4) screws holding the motor brackets to the
motor.
Step 10 -- Reverse above steps to reassemble the motor/fan/ring assembly into the unit.
DRAWING NAME
DRAWN
CATEGORY
CHKD
APRVD
PRODUCT
SIZE
TAG
QTY
BRS/SLG
06/13/22
CRITI-CLEAN ULTRA INSTALLATION MANUAL
SSLFHFD-FFU-RF-MEA
REV # F
SHT
9 27
/
SCL
DO NOT
SCALE
1:10
STAINLESS STEEL
CRITI-CLEAN ULTRA
REVERSE FLOW - FAN FILTER UNITS
