GE Industrial Solutions GE ZENITH SERIES MDU - Manual (Page 43)

Special Instructions
GE Z ENITH C ONTROLS
MDU Owner’s Manual
601 S HILOH R OAD January 2013
Plano, TX 75074 Page 43
8.2. Output Dedicated Circuit Breakers (Sub-Feeds)
Certain MDUs will be designed for a specific application such as a large mainframe. These units may
be equipped with individual molded case output circuit breakers that should be sized for these
specific applications. For these applications, please consult your submittal package for proper power
connections. Consult GE’s field support division at (800) 637-1738 before installing any additional
output breakers to these units.
8.3. Low Voltage Interface Board (Contractor Board)
All low voltage connections for HVAC shutdown, Remote Emergency Power Off (REPO), etc. are made
on the Low Voltage Interface Board generally located behind the MDU’s front upper interior cover on
the front of the logic /monitor plate. Included on the Low Voltage Interface Board are:
1. Connections for one DPDT relay that activates whenever the EPO circuit is activated.
2. Two sets of connections for a REPO system.
3. Connections for (1) one DPDT relay that will change state when power is either on or off.
4. Four sets of customer contacts for building and/or environmental alarms.
Refer to the specifications/drawings section of this manual for detailed drawings of the customer
interface board.