Watlow Series 988LF - Manual (Page 12)

2.2 WATLOW Series 988LF User’s Manual Installation and Wiring, Chapter 2
Installation
Installing the Series 988LF
Installing and mounting requires access to the back of the panel.
1. Make a panel cutout.
2. To remove the controller chassis from its case, press in firmly on the two
tabs on one side or the top of the bezel until they unsnap, then unsnap
the two tabs on the opposite side or the bottom. Pull the chassis out of
the case by gently rocking it.
3. Slide the case into the panel cutout. Check to see that the gasket is
not twisted, and is seated within the case bezel flush with the panel.
Slide the mounting collar over the back of the control.
Panel Adjustable
Mounting Bracket
Bezel
External Gasket
Mounting Collar
Release Tabs
Top and Bottom (986LF or 988LF)
or Side (987LF or 989LF) View
Mounting Slots
Side (986LF or 988LF)
or Top and Bottom (987LF or 989LF) View
4. Loosen the mounting bracket screws enough to allow for the mounting
collar and panel thickness. Place each mounting bracket into the
mounting slots (head of the screw facing the back of the controller).
Push each bracket backward then down to secure it to the control
case. To guarantee a proper NEMA 4X seal, Series 986LF and
988LF units (vertical) must have the mounting brackets located on
either side of the unit. When installing Series 987LF and 989LF
units (horizontal) the brackets must be on the top and bottom of
the unit.
5. Make sure the case is seated properly. Tighten the installation screws
firmly against the mounting collar to secure the unit. To ensure a
NEMA 4X seal, there should be no space between the bezel and
panel. Overtightening the screws will distort the case and make it dif-
ficult to remove or replace the controller.
6. Insert the controller chassis into its case and press the bezel until all
four tabs snap. Make sure the inside gasket is seated properly and
not twisted.
7. To release the mounting brackets, loosen the mounting bracket screws
and push the brackets forward, then pull it up and out.
NOTE:
Removing the con-
troller chassis from
its case makes
mounting easier.
Figure 2.2 -
Side and top view.
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CAUTION:
Follow the installa-
tion procedure
exactly to guarantee
a proper NEMA 4X
seal. Make sure the
gasket between the
panel and the rim of
the case is not
twisted and is seat-
ed properly. Failure
to do so could
result in damage to
equipment.