ELECTRICAL CONNECTIONS

￿WARNING

All electrical connections should be made by a qualified electrician.

To reduce the risk of electrical shock, de-energize the electrical circuit being connected to the tumbler before making any electrical connections. Never attempt to connect a live circuit.

Use the following steps to connect electrical service to the tumbler:

1.Install a circuit breaker, as close to tumbler as possible. If more than one tumbler is being installed, a circuit breaker should be provided for each tumbler. This will make it possible to disconnect each tumbler for maintenance purposes.

2.a. Connect conduit-encased leads to circuit breaker.

b.Turn “off” disconnect switch on tumbler and open junction box.

c.Insert conduit-encased leads through one of the knockout holes in junction box.

d.Connect wire leads to disconnect switch.

1 Phase Units: Connect one lead to top left connection point. Connect other lead to top right connection point.

3 Phase Units: Connect one lead to each connection point.

e.Connect a ground wire to PE Busbar, Figure 19, in junction box.

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

a.Energize electrical service and momentarily start tumbler. Check direction of the cylinder rotation. If cylinder rotates clockwise (viewed from front), phase sequence is correct. If cylinder rotates counterclockwise, proceed with step “b”.

b.Disconnect and reverse any two leads at connections.

4.Close junction box cover and turn “on” disconnect

switch.

DISCONNECT

JUNCTIONSWITCH

BOX

COVER

NAMEPLATE

GUARD

T260IE1A

Figure 18

ELECTRICAL CONNECTIONS

PE

 

PE

ELECTRICAL BUSBAR

ELECTRICAL

BUSBAR

DISCONNECT

DISCONNECT

 

GAS AND STEAM

ELECTRIC

MODELS

MODELS

T277IE1A

Figure 19

M412616

41