Installation and Operation Manual
Part Number: VA001-507-32, Rev. 1
May 2016
19
Section 3: Electrical Connections
Electrical Connections
3.4
Separate Terminal Chamber (STC) Connections
3.4.1
Connect the main power supply cables, including an Earth/Ground
(refer to the job specific Wiring Diagram).
3.4.2 Use the barrier strip clamp screws to connect the control wiring
(refer to the job specific Wiring Diagram).
3.4.3 Ensure all connections are hand tight, including any unused terminals.
NOTE:
The main power supply and ground wire connections are screw size M4.
The control connection screw size is M3.
3.5
Replace Terminal Chamber Cover
3.5.1
Clean electrical enclosure threads thoroughly and lightly grease with dielectric
grease before closing.
3.5.2 Replace the cover by reversing the order of the steps to remove the cover.
3.6
External Earth/Ground Connections
External connection points are provided on the operator for attaching earth/ground in
accordance with local electric codes for installation cables.
Connect the external earth/ground connection as follows.
3.6.1
Using a slotted tip screwdriver, back out the 5/16-inch set screw.
3.6.2 Connect 14 AWG or larger earth/ground wire, tighten setscrew.
Figure 12
External Earth/Ground Connection
Summary of Contents for Bettis EHO
Page 50: ......