F57A,B FLUSH-MOUNT COMMERCIAL ELECTRONIC AIR CLEANER
68-0083—07 10
Air Vent
The air vent helps to control gaseous contaminants such
as by-products of cigarette smoking by allowing some of
the air circulated through the F57 to be discharged into the
return plenum.
To use the air vent, remove the five inch knockout in the
side of the F57 cabinet. See Fig. 7. When venting into the
false ceiling cavity, leave the vent fully open. When ducting
into the return plenum, install damper and position it to
reduce the opening by 50 percent.
Fig. 7. Air vent adjustment.
Wiring
IMPORTANT
Before wiring the F57, remove the power supply
cover. After completing the wiring procedures, reat-
tach the power supply cover.
All wiring must comply with applicable codes and
ordinances.
Power supply wiring system shall provide disconnect
switch for all poles.
The power source to the F57A,B must agree with the model
type, either 120 Va.c., 60 Hz or 220.240 Va.c., 50 Hz.
To wire 120 Va.c., 60 Hz model:
Run three No. 14 color-coded wires through the conduit
to the wiring compartment of the F57. Attach the green
wire to the external ground. The black and white wires
are the power carriers.
Attach the conduit to the knockout desired (either the
large or small knockout).
Attach the green ground wire to the ground screw.
Ground the F57 for proper operation and safety.
Attach the black and white wires to the black and white
wires from the F57 using the wire nuts. See Fig. 8.
To wire 220.240 Va.c., 50 Hz model, see Fig. 8.
IMPORTANT
Earth (ground) the F57 for proper operation and
safety.
This appliance incorporates an earth connection for
functional purposes only.
Fig. 8. Typical F57 wiring hookups.
Reassemble the F57
Reinstall the electronic cells, prefilter, charcoal filter (if
used) and grille assembly. For proper installation of the
cells, see “Service” on page 11.
CHECKOUT
Inspect the Installation
Refer to Fig. 9 and 10 for location of components.
Be sure that the screws on the back of the F57 are
removed to allow for the motor floating suspension.
Observe that the F57 is oriented for good air circulation.
Check that the F57 is correctly and securely attached.
Be sure that the F57 weight does not overstress the
suspended ceiling.
Make sure that the access door is easily opened, and
that the prefilter, cells, and activated carbon filters (if
used) are secure within the unit.
Check leveling of the F57. If necessary, further reinforce
and relevel suspended ceiling T-bar grid and adjust the
hanging wires. If unit is not level, motor can be noisy or
can eventually malfunction.
Check that the electronic cells are correctly oriented for
correct airflow. The cells are correctly oriented when the
contact board of the cell is properly seated. The ionizer
section faces the access door and the collector section
faces the fan.
Be sure the prefilter is correctly placed. The airflow
arrow on the prefilter should be pointing toward the
cells.
Check that the wiring compartment cover is correctly
reinstalled and the grille assembly is latched closed.
Clean the inside and outside of the F57.
KNOCKOUT KNOCKOUT
FIELD SUPPLIED
DAMPER
M7640
120V A.C., 60 HZ MODEL
BLACK FROM F57
WHITE FROM F57
BLACK
WHITE
120V A.C.
F57 GROUND SCREW
220-240V A.C., 50 HZ MODEL
F57A / F57B
N
N
L
L
220-240V A.C.
M5669B