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INSTALLATION HINT
The sail switch may be wired after the air cleaner
is installed in the duct opening, but it's easier to
do it before installation. The sail may be mounted
on the switch after installation to prevent damage
to the sail.
ADAPT SWITCH TO F52 MOUNTING POSITION
The
S688A
is provided
with
2 counterbalancing
springs
in place as shown
in Fig. 7. These springs
offset
the
effect
of
gravity
for
different
airflow
directions.
IMPORTANT
The switch is never used with both springs attached.
One or both springs must be removed as instructed
below before installation. The switch will not op-
erate with the wrong spring in place.
REMOVE
BOTH SPRINGS FOR
CEILING MOUNT
FIG. 7—ADAPTING THE SAIL SWITCH TO DIFFER-
ENT F52 MOUNTING POSITIONS.
Adapt the sail switch
to different
F52 mounting
positions:
—Remove both springs when the F52 is mounted on
the ceiling.
—For all other mounting positions, remove the spring
marked
DOWN
only. The spring marked UP re-
mains attached.
MOUNT SAIL SWITCH ON THE F52
1. Remove the sail switch L-shaped mounting bracket
and
small
parts
envelope
from
the
F52
wiring
compartment.
2. Remove
sail switch cover and remove knockout
on the bottom of the sail switch.
3. Turn the air cleaner over and rest it on the carton.
To avoid scratching the painted surfaces assemble door
to unit later.
4. Mount the sail on the sail switch.
@) TIGHTEN SETSCREW
(Т) LOOSEN SETSCREW
(2) INSERT SAIL
FIG. 8—SLIP WIRE SAIL SUPPORT THROUGH SLOT
AND
FASTEN
UNDER
SCREW
ON
SAIL
SWITCH.
5. Locate the 2 black wires extending from the back
of the power supply. Pull wires through L bracket and
case knockout.
Using 2 small metal screws from the
envelope, mount the L bracket and sail switch so that
the sail will extend into the airflow. (Ignore the airflow
arrows on the sail switch.)
NOTE:
If the F52D is mounted horizontally with the
power supply on the bottom, the sail switch must
be mounted
at a 45 degree angle from
vertical.
REMOVE
KNOCKOUT
IN COVER
SAIL SWITCH
A
IF F52D IS MOUNTED
HORIZONTALLY
WITH THE POWER SUPPLY ON
BOTTOM, THE SAIL SWITCH MUST BE MOUNTED
AT A 45 DEGREE ANGLE
FROM VERTICAL.
7200
FIG. 9—MOUNT
SAIL
SWITCH
ON
BACK
OF
POWER SUPPLY.
6. Make wiring connections
to the N.C. (normally
closed) and COM
(common)
screw
terminals in the
sail switch.
7. Replace sail switch cover.
60-2407
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