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. Refer to Figure 10.

3.Check the electrical service phase sequence (three phase only) as follows:

a.Energize the electrical service (on reversing tumblers, ensure nonreversing 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.

b. Disconnect and reverse any two leads at connections.

ELECTRICAL SERVICE

ELECTRICAL SERVICE(Electric Models)

(Gas & Steam Models)

CONTACTOR BOX

ACCESSORY BOX

GROUND LUG

(Electric Models)

FUSES

GROUND SCREW

(Gas & Steam Models Only)

T224SE3A

Figure 10

32

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