3
69-0251—2
Fig. 4—Use screwdriver to pry out both
sections of knockout.
Fig. 5—Mounting screw and tab hold plate on
transformer.
IMPORTANT
MOUNT
TRANSFORMER
OTHER SIDE
M9163
TRANSFORMER
PLATE
1. Align the plate with the box to determine the proper
mounting holes. The mounting feet and secondary termi-
nals will be outside the box.
2. Remove the mounting hole knockouts if necessary.
3. Mount the plate on the outlet box using two screws
(obtained locally).
MOUNTING THROUGH OUTLET BOX
KNOCKOUT
The transformer can be mounted on an outlet box using
the clamp on the primary end bell. The mounting plate is
not used. To mount the transformer on an outlet box:
1. Turn the clamp screw almost all the way out.
2. From outside box, thread the primary leadwires
through suitable 7/8 in. knockout. Fit the clamp and screw
through the knockout. Do not mount the transformer through
a plastic knockout.
2. Tighten the clamp screw securely against the rim of
the knockout. Avoid damaging the leadwires with the
screwdriver.
WIRING
All wiring must comply with local codes and ordi-
nances. Disconnect power before making wiring connec-
tions to prevent electrical shock or equipment damage.
1. Make primary connections to the line voltage power
supply. On multitap models, be sure to use correct leads for
available power supply. See Fig. 6.
2. On multitap models, insulate the ends of the unused
leads using wire nuts or capping with a solderless connec-
tor.
3. Make secondary connections to 24 Vac control cir-
cuit.
To mount the plate at the laminations:
1. Remove the large rectangular knockout in the mount-
ing plate as shown in Fig. 4.
2. Hold the transformer so the clamp on the end bell
faces you.
3. With the keyhole slots up, fit the mounting plate over
the primary leadwires and end bell. Insert small tab at the
bottom of the plate into the slot in the transformer mounting
foot.
4. Insert the mounting screw (supplied) through the
holes as shown in Fig. 5. Secure the plate to the transformer,
but do not overtighten the screw.
Mounting Transformer and Plate on Outlet Box
The mounting plate may be mounted on 4 in. square
boxes, 2 x 4 in. rectangular boxes, and on 4 in. octagonal
boxes. See Fig. 4.
M9188
WITH RAISED PORTION OF KNOCKOUTS FACING YOU:
PRY UP TOP SECTION OF LARGE KNOCKOUT
BY INSERTING SCREWDRIVER FIRST AT ONE
SIDE OF SLOT AND THEN AT THE OTHER SIDE.
1.
THEN PRY UP BOTTOM SECTION OF KNOCKOUT.
2.
REMOVE BOTH SECTIONS OF KNOCKOUT WITH PLIERS.
3.
SHADED AREAS REPRESENT KNOCKOUTS
AND SCREW SLOTS USED WITH 2 X 4 INCH
OR OCTAGONAL OUTLET BOXES.
