Mounting instructions, Unit removal procedure, Removing unit assembly – Red Lion C48T User Manual

Page 10: Installing unit assembly

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Mounting Instructions

1. Prepare the panel cutout to the dimensions shown in Figure 3, Multiple Unit

Stacking.

2. Remove the panel latch from the unit. Discard the cardboard sleeve.
3. Carefully remove the center section of the panel gasket and discard. Slide the

panel gasket over the unit from the rear, seating it against the lip at the front
of the case.

4. Insert the unit into the panel cutout. While holding the unit in place, push the

panel latch over the rear of the unit, engaging the tabs of the panel latch in
the farthest forward slot possible.

5. To achieve a proper seal, tighten the panel latch screws evenly until the unit

is snug in the panel, torquing the screws to approximately 7 in-lbs.
Overtightening can result in distortion of the panel, and reduce the
effectiveness of the seal.

Note: The installation location of the timer is important. Be sure to keep it away

from heat sources (ovens, furnaces, etc.), and away from direct contact with
caustic vapors, oils, steam, or any other process by-products in which
exposure may affect proper operation.

Caution: Disconnect power to the unit and to the output control circuits

to eliminate the potential shock hazard when removing the entire unit
or unit assembly.

Unit Removal Procedure

To remove the entire unit (with case) from the panel, first loosen the panel

latch screws. Insert flat blade screwdrivers between the panel latch and the case
on either side of the unit, so that the latches disengage from the grooves in the
case. Push the unit through the panel from the rear.

Removing Unit Assembly

The unit assembly, shown in Figure 4, must be removed from the case to

change plug jumper settings or to replace the relay output board. To remove the
unit assembly, insert a flat blade screwdriver into the pry slot on either side of
the unit. Twist the screwdriver handle until the unit is ejected enough to allow
removal.

Caution: The unit assembly contains electronic circuits that can be damaged by

static electricity. Before removing the assembly, discharge static charge on
your body by touching an earth ground point. It is also important that the unit
assembly be handled only by the bezel. Additionally, if it is necessary to
handle a circuit board, be certain that hands are free from dirt, oil, etc., to
avoid circuit contamination that may lead to malfunction. If it becomes
necessary to ship the unit for repairs, place the unit in its case before
shipping it.

Installing Unit Assembly

To install the unit assembly, insert the assembly into the case until the bezel

is fully seated against the lip of the case. Properly installing the unit assembly
is necessary for watertight sealing.

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Figure 4, Unit Assembly

C48t-im.QXD 3/5/04 3:28 PM Page 4

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