AJ SSLFHFD-FP User manual

-These instructions cover fan filter unit models:
- SSLFHFD-FP (Standard)
- SSLFHFD-FP-MEA (Motor/Electronincs Accessible)
READ COMPLETELY AND SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE
DRAWING NAME
DRAWN CATEGORY
CHKD
APRVD
PRODUCT
SIZE
TAG QTY
BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
1 29 /
SCL
DO NOT
SCALE
1:8
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

Critical operation conditions of the Fan Filter Unit
x
DO NOT TOUCH the HEPA filter media. Damage to filter media may void the filter warranty. The screen is to protect against accidental
contact with the filter. Never place objects on the filter. Always transport or lift the filter by its frame.
x
Prior to powering the unit, verify that it is wired to the correct power supply. The rating plate label, located on the electrical box,
shows the electrical data.
x
For replacement parts, refer to the model number and serial number on the rating plate label located on the electrical box.
Replacement Part numbers
FPH-RP11 FPH 48 x 24 HEPA filter
FPH-RP12 FPH 16 x 16 x 3/8 expanded aluminum pre-filter
FPH-RP13 FPH 24 x 24 HEPA filter
FPH-RP14 FPH 14 x 14 x 3/8 expanded aluminum pre-filter
FPH-RP16 FPH 36 x 24 HEPA filter
FPH-RP21 FPH Programmable variable speed motor (120, 208/240VAC)
FPH-RP22 FPH Programmable variable speed motor (277VAC)
FPH-RP31 FPH Visual control circuit board
FPH-RP32 FPH 0-10VDC control circuit board
FPH-RP33 FPH Network control circuit board
FPH-RP34 FPH Fan verification kit
FPH-RP35 FPH LED filter indicator Kit
FPH-RP36 FPH 120/24VAC transformer
FPH-RP37 FPH 208/240/24VAC transformer
FPH-RP38 FPH 277/24VAC transformer
FPH-RP39 FPH Network power control circuit board
FPH-RP40 FPH Face mounted airflow display board
FPH-RP41 FPH Multi-input control board
DRAWING NAME
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APRVD
PRODUCT
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TAG QTY
BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
2 29 /
SCL
DO NOT
SCALE
1:10
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

READ COMPLETELY AND SAVE THESE INSTRUCTIONS
WARNING - TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS,
ALLOW ONLY QUALIFIED TECHNICIANS TO INSTALL AND SERVICE THE UNIT. ALL
PERSONS SHOULD OBSERVE THE FOLLOWING:
a) Use this unit only in a manner intended by the manufacturer.
If you have questions, contact the manufacturer.
b) Before servicing or cleaning unit, switch power off at the service
panel and lock-out the service in accordance with OSHA (LOTO)
practices and procedures to prevent power from being accidentally
switched on avoiding accidental electric shock and injury. When
the service disconnecting means cannot be locked, securely fasten
a prominent warning device, such as a tag, to the service panel.
x
Installation work and electrical wiring must be completed by qualified personnel in accordance
with all applicable codes and standards, to include fire-rated constructions.
x
When cutting or drilling into walls and ceilings, be careful not to damage electrical wiring and
other hidden utilities.
x
If this unit is to be installed within close proximity to water, mark the unit in accordance with
applicable codes and standards.
x
This unit is to be used only as intended by the manufacturer. If you have any questions regarding
the use, installation, or operation of this unit, contact the manufacturer:
AJ Manufacturing Co., Inc.
8701 Elmwood Ave, #400
Kansas City, MO 64132
Tel: [phone]
DRAWING NAME
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CHKD
APRVD
PRODUCT
SIZE
TAG QTY
BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
3 29 /
SCL
DO NOT
SCALE
1:10
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

INSTALLATION CHECKLIST
This is to provide a general overview of what steps should be taken to acheive
a successful installation of the fan filter unit. These steps should be performed in the order listed. For
more detail see applicable section in this instruction manual. Read the entire manual before beginning
installation.
□
Unbox and inspect the fan filter unit.
□
If the unit is to be ducted, set upstream air device to produce 0.0" W.C. static pressure at the fan unit inlet.
Use dampers if necessary if installing mutiple fan units on the same duct line.
□
Install the fan unit into the ceiling. Support its weight from structure above.
□
Connect ductwork to fan unit (if applicable).
□
Seal the fan filter unit to the ceiling using gasketing and caulking.
□
Connect main power wiring.
□
Connect control wiring (if applicable).
□
Run the unit and/or upstream air device to flush out construction debris.
□
Install the pre-filter (if applicable).
□
Install the HEPA/ULPA filter.
□
Turn unit on and adjust airflow to design CFM.
□
Turn on the upstream airflow device.
□
Leak test the fan unit and filter per local codes and building procedures.
□
Install the perforated face screen.
□
Verify airlow with a flow hood.
DRAWING NAME
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CHKD
APRVD
PRODUCT
SIZE
TAG QTY
BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
4 29 /
SCL
DO NOT
SCALE
1:10
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

Line voltage
wiring knockouts
Main power switch
Installation
The terminal unit is fully assembled from the factory with the exception
of the HEPA filter and lamps (as applicable) which is shipped in a separate box.
Step 1 -- Carefully remove the unit from the shipping carton and inspect for
damage that may have occurred during shipping. If shipping damage is found,
do not install. Call the manufacturer to report damage.
Step 2 -- Wipe down unit to remove shipping dust and debris.
Step 3 -- Raise unit into ceiling and lower onto gasketed opening.
Gasket should be a closed-cell material approved for the environmental
conditions. It is highly recommended to further support the unit from
above using the tabs welded to the plenum.
Step 4 -- A qualified technician should connect the unit to the appropriate
power supply per applicable codes and standards. Refer to the wiring
diagrams included in these instructions. -FP and -MA units: the electrical
box will be accessible from the plenum side. -MEA units: the electrical
box will be accessible from the roomside.
NOTE : If an -MA or -MEA unit is installed in an area with no access above the
ceiling, the main power switch must be turned on before installing unit .
NOTE: An additional disconnect should be added by others per local codes
and regulations.
SSLFHFD-FP-120 --- 120VAC SUPPLY
SSLFHFD-FP-208/240 --- Duel rated 208 or 240VAC SUPPLY
SSLFHFD-FP-277 --- 277VAC SUPPLY
Step 5 -- Blow out / clean entire duct system leading to unit to remove construction
debris. This is especially important for motor accessible units as they do not have a
pre-filter. Wash pre-filter if applicable per “Cleaning the Fan Filter Unit Pre-filter” on page 7.
Step 6 -- Install the HEPA filter per the “Removal and Replacement of the HEPA Filter
with Gel Seal” section.
NOTE: FOR DUCTED INSTALLATIONS, IT IS RECOMMENDED
THAT PRIMARY AIR BALANCING TO ACHIEVE 0.0"WC INLET
STATIC PRESSURE BE DONE BEFORE FAN FILTER UNIT IS
CONNECTED TO DUCT SYSTEM.
DRAWING NAME
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CHKD
APRVD
PRODUCT
SIZE
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BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
5 29 /
SCL
DO NOT
SCALE
1:10
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

A NOTE ABOUT VAV BOXES AND DUCTED APPLICATIONS
In applications where the fan filter unit will be installed downstream of variable airflow devices such as
VAV boxes, air valves, or variable air handlers, proper care in unit set-up needs to be taken.
The unit should not be programmed to run as constant airflow in this application. Two variable controllers
trying to reach their respective set point will continuously adjust. This will cause issues such as surging,
starving, and eventual shut down of the fan filter unit. The units should be ordered with a constant torque
program. This will remove the dirty filter ramp-up feature and the CFM display will no longer be accurate.
However, this is still preferable to a PSC system due to the energy efficiency of an ECM versus a PSC motor.
Ducted applications While the fan filter unit can handle some positive or negative static pressure, optimal
performance and reliability will be acheived with an inlet static pressure of 0.0" WC or slightly negative.
To reach an accurate 0.0"WC inlet static, it is recommended that the primary air balancing of the duct system
be done before installing the fan filter unit. When the duct is at optimal static, install the unit per these
instructions and adjust the airflow to the design setting. Verify the airflow with an airflow hood.
It is recommended that all FFUs in the system be energized before any upstream devices to prevent the FFU blower
wheel from spinning backwards. While the motor can generally overcome this, if the airflow needed to overcome
high static is too great, it may not. This will cause the motor to shut down. Continual running of the motor backward
may result in reduced reliability of the EC motor.
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APRVD
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BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
6 29 /
SCL
DO NOT
SCALE
1:10
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

Pre-filter access
Cleaning the Fan Filter Unit Pre-filter
(when applicable)
WARNING!
Disconnect the unit from the electrical power source before attempting to service the unit.
Note: For maximum performance, wash pre-filter every three to six months at a minimum.
Step 1 -- Turn the unit off with the rocker switch located on the unit.
Step 2 -- Disconnect the unit at the power source or at the service panel in
accordance with OSHA (LOTO) practices and procedures.
Step 3 -- Using a driver, remove the screw holding the hinged door. This
allows access to the pre-filter. Slide the pre-filter out of the motor
enclosure. This step is not applicable if unit is non-ducted.
Step 4 -- Wash the filter with hot water and a mild detergent and rinse
thoroughly. Do not use a caustic solution to clean the filter. Blow
dry or let air dry and slide the filter back into the motor enclosure.
Filter should be completely dry before reinstalling into unit.
Step 5 -- Using the driver, re-secure the cover with the screw.
DRAWING NAME
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APRVD
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BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
7 29 /
SCL
DO NOT
SCALE
1:10
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

Face Frame
HEPA/ULPA
Filter
Removal and Replacement of the HEPA Filter with Gel Seal
WARNING!
Disconnect the unit from the electrical power source before attempting to service the unit.
WARNING!
The HEPA filter may be protected by an expanded metal screen. The screen prevents accidental contact with the filter media.
It is not meant to allow handling of the filter by the media. Handle the filter ONLY by the frame.
NOTE: The manufacturer recommends two people to remove and install the HEPA filter in the unit.
Step 1 -- Using a flat screwdriver, release the face frame by rotating the four (4) fasteners a 1/4-turn counter clock-wise.
Unhook the safety cables from the filter clips. Set the frame aside.
Step 2 -- Turn the unit off with the switch located on the unit (round, black button).
Step 3 -- Disconnect the unit at the power source or at the service panel in accordance with OSHA (LOTO)
practices and procedures.
Step 4 -- USE TWO PEOPLE TO SUPPORT THE FILTER and rotate the swingarm filter clips off of the filter until
clip is clear of the filter.
Step 4 ALT (if stud style filter clips) -- Using a 7/16” nut-driver, evenly loosen the nuts holding the filter retaining
clips by working your way around the unit loosening the nuts a little at a time. To make installing the new
filter easier, loosen the nuts until flush with the end of the threaded stud. USE TWO PEOPLE TO SUPPORT
THE FILTER and rotate the filter clips toward the offset hole until clip is clear of the filter.
Step 5 -- Allow gravity to pull the filter away from the unit. If installing a new filter discard the filter in an
appropriate manor.
Step 6 -- Unpack the new filter and inspect for shipping damage. If damage is found, do not install in unit; call the
vendor for replacement arrangements.
Step 7 -- Using two people, raise the filter into place in between the filter guides (or threaded posts if stud style) assuring the seal edge is
approximately in the center of the gel channel.
Step 8 -- While supporting the filter by its frame, rotate the filter clips so that the clips are supporting the frame
and are at 90° to the frame. (ALT--Evenly tighten the nuts by working your way around the unit tightening the nuts
a little at a time. Stop tightening when the aluminum filter frame contacts the stainless steel housing frame of the unit.
DO NOT OVER TIGHTEN
). Wait at least 30 minutes before performing any challenge testing to allow the
gel to fully adhere to the unit.
Step 9 -- Inspect all gaskets and seals for integrity. Reconnect power and turn unit power on.
Step 10 -- Raise the face frame back into place, reattach the safety chains, and secure 1/4-turn fasteners.
DRAWING NAME
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CHKD
APRVD
PRODUCT
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BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
8 29 /
SCL
DO NOT
SCALE
1:12
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

Duct Connector
Mounting screws
(typ 6)
Motor assembly
Blower wheel
Pre-filter
Removal and Installation of the Variable Speed Motor (SSLFHFD-FP)
WARNING!
Disconnect the unit from the electrical power source before attempting to service the unit.
Step 1 -- Turn the unit off with the switch located on the face of the unit.
Step 2 -- Disconnect the unit at the power source or at the service panel in accordance with
OSHA (LOTO) practices and procedures.
Step 3 -- Remove the HEPA filter and the pre-filter and set aside. See sections 2 and 3 for instructions.
Step 4 -- Use a 1/8” drill bit and drill to remove the six (6) rivets located around the motor housing cover.
Set cover aside. Clean out metal shavings and rivet parts from the unit. NOTE: If duct is attached
to cover, be careful not to damage duct. Disconnect duct if necessary.
Step 5 -- Disconnect the 6-pin power cable and the 4-pin data cable from the motor.
Step 6 -- Using the 7/16” nut driver, remove the six nuts holding the motor.
Step 7 -- Lift the motor/fan/ring assembly out of the unit.
Step 8 -- Use a 5/32” hex driver to loosen set screw and slide fan off the motor shaft.
Step 9 -- Use a driver to remove the motor mount harness from the motor.
Step 10 -- Reverse above steps to reassemble the motor/fan/ring assembly into the unit.
The fan collette should be even with the end of the motor shaft. Either rivets or sheet
metal screws can used to secure the motor housing cover.
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APRVD
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BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
9 29 /
SCL
DO NOT
SCALE
1:12
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

Mid-panel
Mounting screws
(typ 6)
Blower wheel
Motor
assembly
HEPA/ULPA
Filter
Face Frame
Removal and Installation of the Variable Speed Motor
(SSLFHFD-FP-MA/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 four (4) fasteners a 1/4-turn
counter clock-wise. Unhook the safety cables from the filter clips. Set the frame aside.
Step 2 -- Turn the unit off with the switch located on the frame of the unit.
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 the pre-filter and set aside. See sections 2 and 3 for instructions.
Step 5 -- Using a flat screwdriver, release the mid panel by rotating the three (3) fasteners a
1/4-turn counter clock-wise. Allow panel to swing down to vertical and remove from
unit. Set aside.
Step 6 -- Use a 5/32” hex driver to loosen set screw and slide fan off the motor shaft.
Step 7 -- Disconnect the 6-pin power cable and the 4-pin data cable from the motor.
Step 8 -- Using the 7/16” nut driver, remove the six (6) nuts holding the motor.
Step 9 -- Lower the motor/ring assembly out of the unit.
Step 10 -- Use a driver to remove the motor mount harness from the motor.
Step 11 -- Reverse above steps to reassemble the motor/fan/ring assembly into the unit. The fan collar
should be even with the end of the motor shaft.
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APRVD
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BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
10 29/
SCL
DO NOT
SCALE
1:12
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

HIGH VOLTAGE
TERMINAL BLOCK
MAIN POWER
SWITCH
TRANSFORMER
CONTROL
BOARD
Access to Electrical Components
(SSLFHFD-FP-STD/MA)
WARNING!
Disconnect the unit from the electrical power source before attempting to service the unit.
Step 1 -- Turn the unit off with the switch located on the electrical box.
Step 2 -- Disconnect the unit at the power source or at the service panel in accordance with OSHA (LOTO)
practices and procedures.
Step 3 -- Use a 5/16” hex driver to remove screws holding electrical access panel. Swing panel up to release
from the tabs.
Step 4 -- To remove transformer:
Step 4a -- Disconnect all wires from terminals. See wiring diagram for replacing wires.
Step 4b -- Using a 1/8" drill bit, drill out the two rivets. Clean debris.
Step 4c -- Use new 1/8" rivets or #6 screws to install replacement transformer.
Step 5 -- To remove control board:
Step 5a -- Using a 1/8" drill bit, drill out the two rivets holding control board to electrical box. Clean debris.
Step 5b -- Remove the two red plugs and use a small screw driver to remove power wires.
Step 58c -- Use new 1/8" rivets or #6 screws to install replacement board.
Step 6 -- Reverse above steps to replace electrical components and to
replace panel.
DRAWING NAME
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CHKD
APRVD
PRODUCT
SIZE
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BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
11 29/
SCL
DO NOT
SCALE
1:12
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

LINE VOLTAGE
TERMINAL BLOCK
MAIN POWER
SWITCH
TRANSFORMER
CONTROL BOARD
Access to Electrical Components
(SSLFHFD-FP-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 four (4) fasteners a 1/4-turn
counter clock-wise. Unhook the safety cables from the filter clips. Set the frame aside.
Step 2 -- Turn the unit off with the switch located on the frame of the unit.
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 the pre-filter and set aside. See sections 2 and 3 for instructions.
Step 5 -- Using a flat screwdriver, release the mid panel by rotating the three (3) fasteners a
1/4-turn counter clock-wise. Allow panel to swing down to vertical and remove from
unit. Set aside.
Step 6 -- Use a 5/16” hex driver to remove screws holding electrical access panel
(Find them in the ø1/4" round holes in foam). Slide panel over to release
from the slots.
Step 7 -- To remove transformer:
Step 7a -- Disconnect all wires from terminals. See wiring diagram for replacing wires.
Step 7b -- Using a 1/8" drill bit, drill out the two rivets. Clean debris.
Step 7c -- Use new 1/8" rivets or #6 screws to install replacement transformer.
Step 8 -- To remove control board:
Step 8a -- Use a 5/16” hex driver to remove screws holding control board bracket.
Step 8b -- Remove the two red plugs and use a small screw driver to remove power wires.
Step 8c -- Using a 1/8" drill bit, drill out the two rivets holding control board to bracket. Clean debris.
Step 8d -- Use new 1/8" rivets or #6 screws to install replacement board.
Step 11 -- Reverse above steps to replace electrical components and to replace panels.
DRAWING NAME
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CHKD
APRVD
PRODUCT
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BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
12 29/
SCL
DO NOT
SCALE
1:12
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

FACE FRAME ON
FACE FRAME REMOVED
FUSE
AIRFLOW DISPLAY
SETPOINT CONTROL
ON/OFF SWITCH
STATUS LED INDICATORS
- YELLOW --UNIT OFF
- GREEN --UNIT RUNNING
- RED --FILTER DIRTY (OPTIONAL)
CALIBRATION CONTROL
NOTE: ON/OFF SWITCH AND
DIGITAL CONTROLS ARE HIDDEN
WHEN FACE FRAME IS IN PLACE.
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01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
13 29/
SCL
DO NOT
SCALE
1:15
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

RESETTABLE FUSE
MAIN POWER SWITCH
RESETTABLE FUSE/MAIN POWER SWITCH
Each fan filter is equipped with an 8 Amp resettable fuse to protect the unit
from electrical spikes. The fuse is located on the mid panel support angle,
behind the face frame and HEPA filter.
The main power switch is located on the electrical on the backside of the unit.
An additional disconnect can be added by others per local codes and regulations.
NOTE : If an -MA or -MEA unit is installed in an area with no access above the ceiling,
the main power switch must be turned on before installing into the ceiling .
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BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
14 29/
SCL
DO NOT
SCALE
1:12
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

PAO Concentration /
Static pressure port
1/2" barb fitting
PAO challenge supply port
1/2" barb fitting
C
C
SECTION
C-C
PAO Challenge System
blows oil into airstream
for maximum mixing
PAO CHALLENGE SYSTEM
An optional PAO Challenge System is available to provide a reliable,
convenient method of performing a challenge test of the fan filter unit at the face.
**These instructions are to assist a qualified technician in testing the leakage of the fan filter unit. Filter should be installed
for a minimum of 30 minutes before test is performed
Step 1 -- Using a flat screwdriver, release the face frame by rotating the four (4) fasteners a 1/4-turn counter clock-wise.
Unhook the safety cables from the filter clips. Set the frame aside.
Step 2 -- Remove cap from PAO concentration port (aluminum). Attach UPSTREAM hose (3/8" ID) from photometer to
PAO concentration port.
Step 3 -- Remove cap from PAO challenge supply port (aluminum). Attach DOWNSTREAM hose (3/8" ID) from
photometer to PAO challenge supply port.
Step 4 -- Conduct the challenge test per the site requirements. Equipment is designed to
pass IEST-RP-CC034 current revision standards.
Step 5 -- Disconnect hoses from ports, and securely replace caps.
Step 6 -- Raise the face frame back into place, reattach the safety chains,
and secure quarter-turn fasteners.
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APRVD
PRODUCT
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TAG QTY
BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
15 29/
SCL
DO NOT
SCALE
1:10
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

1.75 41.62 1.75
1.34 18.45 1.34
Hole for 3/8" All thread
10GA Bracket
D
Seismic Bracket - 10GA
Lateral Bracing
Unit Plenum
3/8" Grade 5 Nut
3/8" Grade 5 Nut
3/8" Medium Split
Locking Washer
3/8" Medium Split
Locking Washer
3/8" Flat Washer
3/8" Flat Washer
3/8" Grade 55
Threaded Rod
(All hanging components - supplied by others)
OSHPD SEISMIC OPTION
An optional OSHPD seismic package is available to provide a reliable
mounting method for units in a seismic application.
Unit will come from factory ready for installation.
**All hanging components will be supplied/installed in the field by others. Components should be selected and
calculated by a qualified structural engineer to meet the lateral cable requirements as per OSHPD report.
(Dimensions are from outside of plenum to all thread
C
L
)
SUGGESTED SEISMIC BRACING
STACKUP DETAIL
OSHPD Certification is Pending
Temporary Record # 21TMP-006268
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PRODUCT
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BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
16 29/
SCL
DO NOT
SCALE
1:12
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

CONTROLS
The fan filter unit can be controlled through various inputs:
1. Local potentiometer control
- Adjust airflow from the face
- Adjust flow from back of unit (disabled if face control present)
2. Individual unit wall mounted control (must be determined before ordering)
3. 0 - 10V/0 - 5V DC Control
4. 0 - 20mA/4 - 20mA Control
5. Full range of network controls including connection to BAS/BMS through MODBUS RTU RS485 control
- BACNet IP, BACNet MS/TP, & LONWorks available with additional hardware
Additionally, monitoring and control of the FFU can be done through closed loop control from
sensors such as pressure transducers, thermostats, partical counters, etc.
This manual will give basic information on how to connect controls and sensors to the unit. For
more details refer to the instructions included with the controller or sensors.
WALL MOUNT POTENTIOMETER CONTROL
Potentiometer and wall plate are provided with this option. It is factory hard wired and tested.
Signal is 0-10VDC. Potentiometer is 0-10K Ohms.
To relocate the potentiometer cut the wires leaving enough lead to make new connections. Run 3 conductor wire rated for the
requirements of the installation and meeting all relevant codes. If possible use strain relief at the fan filter unit.
Connect wires like to like at each end of the extension leads. Retest unit to verify operation.
DRAWING NAME
DRAWN CATEGORY
CHKD
APRVD
PRODUCT
SIZE
TAG QTY
BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
17 29/
SCL
DO NOT
SCALE
1:2
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

NETWORKING
When networking the fan filter units either in a local area network (LAN) or connecting to
a BAS/BMS system. Each unit is connected in a "straight-through" daisy-chain using Cat5e or
Cat6 network cables and the on-board RJ45 connectors.
If field cutting network cables, it is important for each end of the cable to be wired identically.
However, assembled network cable are available; field assembled cables are the leading
cause of problems in new systems.
ACC1001 control used
as an example. Other
controller options
available.
Power is supplied to controller
by a wall AC adapter supplied
with controller.
DRAWING NAME
DRAWN CATEGORY
CHKD
APRVD
PRODUCT
SIZE
TAG QTY
BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
18 29/
SCL
DO NOT
SCALE
1:10
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

1
2
3 4 5 6
7
10 9 8
1. RJ45 Dual Jacks
2. Modbus Address DIP Switches
3. S1-1 and S1-2 Configuration DIP Switches
4. STATUS LED
5. NET LED (network activity)
6. FAULT LED
7. Mulitmeter Common
8. Multimeter Setpoint as mVDC
9. Multimeter CFM as mVDC
10. Onboard Setpoint Potentiometer
M
K
L
J
H G F E D C B A
N
A. JPS: Bias input power, isolated
B. JP2: Accessory output voltages
C. JVDC: Selector for 10V regulated or unregulated
rectified and filtered bus voltage
D. J1: EC Motor Port
E. JVS-1: INP1 10V signal range selector
F. JP1: INP1 and INP2 analog/digital inputs
G. JVS-2: INP2 10V signal range selector
H. JLED: External FAULT output
J. JPUD2: INP2 digital input pull-up or 20mA signal
format selector
K. JPUD1: INP1 digital input pull-up or 20mA signal
format selector
L. JP420: 0-20mA or 4-20mA signal format selector
M. JFBS: TACH or Analog 2 feedback signal selector
N. Aux Board Port
DRAWING NAME
DRAWN CATEGORY
CHKD
APRVD
PRODUCT
SIZE
TAG QTY
BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
19 29/
SCL
DO NOT
SCALE
1:10
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS

NETWORKING
DIP SWITCH SETTINGS
Each fan filter unit in a network must be set to a unique address between 1 and 247.
Addresses 248- 255 are declared reserved per MODBUS protocol. A DIP switch block
of eight switches are used for addressing. The control board supports Modbus Broadcast
Address Zero for single and multiple register write commands (Modbus Function Codes 6 and 16).
Address settings are checked by the board controller only at power-up,
so power must be cycled before any changes take effect.
Analog input setpoint modes preserve the ability to monitor and modify register
values using a suitable controller console or PLC.
Therefore, addressing may be relevant for configuration, monitoring and/or troubleshooting
even when units are intended to be used with analog setpoint input.
Address Selection
When adjusted to the ON position, each DIP switch pole represents a value as follows:
Calculate the address value of existing switch settings
by adding the values of each DIP switch pole in the ON
position, per the table at left.
Construct switch settings for a desired address value by
successively subtracting the largest pole value that is less
than the desired address value, repeating with each
remainder until the remainder is zero. An example is provided
below.
Example: Desired address is 114
114 - 64 = 50 SW1-7 ON
50 - 32 = 18 SW1-6 ON
18 - 16 = 2 SW1-5 ON
2 - 2 = 0 SW1-2 ON
64+32+16+2 = 114
*See page 23 for more
examples
DIP Switch Pole Value
1 1
2 2
3 4
4 8
5 16
6 32
7 64
8 128
DRAWING NAME
DRAWN CATEGORY
CHKD
APRVD
PRODUCT
SIZE
TAG QTY
BRS/SLG
01/24/22
CRITI-CLEAN ORIGINAL INSTALLATION MANUAL
SSLFHFD-FP, SSLFHFD-FP-MEA
REV # F
SHT
20 29/
SCL
DO NOT
SCALE
1:10
STAINLESS STEEL
CRITI-CLEAN ORIGINAL
FAN FILTER UNITS