Hanger Tabs
Line Power
Knock Out
Main Control Board
Installation
The terminal unit is fully assembled from the factory with the exception
of the HEPA filter. Filter 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 supplier to report damage.
Step 2 -- Wipe down unit to remove shipping dust and debris.
Step 3 -- Raise unit into position and secure using the hanger tabs. Alternately it can be secured
a framed opening through the frame if care is taken not to damage the knife edge and
all penetrations are sealed. Any gasket should be a closed-cell material approved for the
environmental conditions. Sealant used to seal the unit to the ceiling should be approved
for the application and conditions.
Step 4 -- A qualified technician should connect the unit to the appropriate power supply
per applicable codes and standards. Verify circuit and rating plate voltages
match. Refer to the wiring diagrams included in these instructions.
-FFU-RF-MEA units: the electrical box will be accessible from the room side.
SSLFHFD-FFU-120 --- 120 VAC SUPPLY,
2.8 FLA
SSLFHFD-FFU-208 --- 208 VAC SUPPLY,
2.6
FLA
SSLFHFD-FFU-240 --- 240 VAC SUPPLY, 2.3 FLA
SSLFHFD-FFU-277 --- 277 VAC SUPPLY, 1.9 FLA
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.
Step 6 -- The unit should be run tested to maximum flow to verify ducts are clear and debris is
flushed. Control functions should be tested to verify setpoint can be changed and the fan
started and stopped in the intended manner.
Step 7 -- 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 SYTEM.
NOTE:
An additional disconnect should be added
by others per applicable codes and regulations.
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
5 27
/
SCL
DO NOT
SCALE
1:11
STAINLESS STEEL
CRITI-CLEAN ULTRA
REVERSE FLOW - FAN FILTER UNITS
