The following steps outline the procedure for connecting
the electrical service to the tumbler.
NOTE: The wiring diagram is supplied in material
packet in cylinder.
1. Install a circuit breaker as close to the tumbler as
possible. If more than one tumbler is being installed,
a disconnect switch or circuit breaker should be
provided for each. This will make it possible to
disconnect each tumbler for maintenance purposes.
2. Connect the conduit-encased leads to the disconnect
switch, or circuit breaker. Connect the wire leads to
the appropriately labeled terminal on the terminal
block. The ground wire must be connected to the
ground connection as shown in Figure 16.
ELECTRICAL SERVICE
(Gas & Steam Models)
CONTACTOR
BOX
M414670
© Published by permission of the copyright owner – DO NOT COPY or TRANSMIT
3. Check the electrical service phase sequence (three
phase only) as follows:
a. Energize the electrical service (on reversing
tumblers, ensure non-reversing is selected)and
momentarily start the tumbler. Check the direction
of the cylinder rotation. If the cylinder rotates
clockwise (viewed from the front), the phase
sequence is correct. If the cylinder rotates
counterclockwise, proceed with step "b".
NOTE: On reversing tumblers, the fan motor should
also rotate clockwise (viewed from the front) on all
models except 120 pound, 170 pound and 634 models.
The fan motor on 120 pound, 170 pound and 634
models rotates counterclockwise (viewed from the
front).
b. Disconnect and reverse any two leads at
connections.
FUSES
GROUND SCREW
(Gas & Steam Models Only)
Figure 16
ELECTRICAL SERVICE
(Electric Models)
ACCESSORY
BOX
GROUND LUG
(Electric Models)
T224SE3A
43