Electrical Requirements

The following steps outline the procedure for connecting the electrical service to the tumbler.

NOTE: The wiring diagram is supplied in literature 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 appropriate labeled terminal on the terminal block. The ground wire must be connected to the ground connection as shown in Figure 16.

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 except the F75 models which rotate counterclockwise (viewed from the front).

b.Disconnect and reverse any two service leads on the terminal block.

2

1

7

3

4

5

6

T224S

1Electrical Service (Gas and Steam Models)

2Electrical Service (Electric Models)

3Accessory Box

4Ground Lug (Electric Models)

5Fuses

6Ground Screw (Gas and Steam Models Only)

7Contactor Box

Figure 16

42

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