Installation 
(cont’d) 
DANGER 
HAZARDOUS VOLTAGE 
(Can Cause Severe Injury or Death) 
Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components. 
Control Connections 
Figure 5 
Clock Program 
Backup Battery 
Remove protective 
Connections 
Engine Start 
strip to enable clock 
functions 
Network Connector 
Input/Output 
Connectors 
to I/O Modules 
To R/T Box 
To Power 
Panel 
A complete information package is furnished with 
each transfer switch including a complete connection 
diagram and schematic which details all necessary 
control circuit field connections. 
The engine start control wires connect to the 
engine start relay terminals located to the left 
of the microprocessor
. Figure 5 shows the location 
of these terminals. 
The terminals are clearly identified by a label on the 
microcontroller backplate. In the case of manual trans
-
fer switches, or in other applications not requiring the 
microprocessor
, clearly marked terminal blocks are 
provided in the upper left corner of the control panel 
for the engine start control wires. 
GE Zenith Controls 
ZTS / ZTSD Operation and Maintenance Manual (71R-3000) 
5