Watlow Electric Integrated Controller User Manual Rev C EZ-ZONE PM - Manual (Page 11)

Wa t l o w E Z - Z O N E ® P M I n t e g r a t e d C o n t r o l l e r • 9 • C h a p t e r 2 I n s t a l l a n d W i r e
Installation
case
retention collar
panel
bezel
gasket
1. Make the panel cutout using the mounting tem-
plate dimensions in this chapter.
Insert the case assembly into the panel cutout.
2. While pressing the case assembly firmly against
the panel, slide the mounting collar over the back
of the controller.
If the installation does not require a NEMA 4X
seal, slide the mounting collar up to the back of
the panel tight enough to eliminate the spacing
between the gasket and the panel.
Slide the mounting collar over
the back of the controller. Place the blade of a screw-
driver in the notch of the
mounting collar assembly.
3. For a NEMA 4X (UL50, IP66) seal, place the
blade of a screwdriver in the notch of the mount-
ing collar assembly and push toward the panel
while applying pressure to the face of the control-
ler. Don't be afraid to apply enough pressure to
properly install the controller. The seal system is
compressed more by mating the mounting collar
tighter to the front panel (see pictures above). If
you can move the case assembly back and forth
in the cutout, you do not have a proper seal.
The tabs on each side of the mounting collar have
teeth that latch into the ridges on the sides of the
controller. Each tooth is staggered at a different
depth from the front so that only one of the tabs,
on each side, is locked onto the ridges at a time.
Note: There is a graduated measurement difference between
the upper and lower half of the display to the panel. In order to
meet the seal requirements mentioned above, ensure that the
distance from the front of the top half of the display to the panel
is 16 mm (0.630 in.) or less, and the distance from the front of
the bottom half and the panel is 13.3 mm (0.525 in.) or less.
Removing the Mounted Controller from Its Case
1. From the controller's face, pull out the tab on
each side until you hear it click.
Pull out the tab on each side
until you hear it click. Grab the unit above and below
the face and pull forward.
2. Once the sides are released, grab the unit above
and below the face with two hands and pull the
unit out.
If it is difficult to pull the unit out, remove the
connectors from the back of the controller. This
should make it easier to remove.
Ó
Warning:
• This equipment is suitable for use in class 1, div. 2, Groups
A, B, C and D or Non-Hazardous locations only. Temperature
Code T4A.
• WARNING – EXPLOSION HAZARD. Substitution of component
may impair suitability for class 1, div. 2.
• WARNING – EXPLOSION HAZARD. Do not disconnect equip-
ment unless power has been switched off or the area is known
to be nonhazardous.