GE Industrial Solutions GE ZENITH SERIES MDU - Manual (Page 18)

Installation Procedures
GE Z ENITH C ONTROLS
MDU Owner’s Manual
601 S HILOH R OAD January 2013
Plano, TX 75074 Page 18
3.8. Customer Connections: Low Voltage Interface Board
Customer connections for remote monitoring or controls are found on the MDU’s Low Voltage
Interface Board (contractor board). This board is mounted internally within the MDU and is located
behind the safety cover between the output distribution panels in the lower front of the unit. All
interface wiring should be run within the cabinet for termination on the contractor board. All
interface wiring (building alarms, AC alarms, halon alarms, remote power off systems, etc.) and
contacts are to be provided by others.
3.8.1. GE Zenith Series Monitoring Package
1.
Summary Alarm: Dry Contact point to advise when unit is in alarm.
2.
Dry Contact Remote Relays: Programmable dry contacts for external output of
specific internal alarms
3.
ModBus Connection: 4-wire configuration connection is located on the Customer
connection terminal block
4.
Building Alarm: Input terminal block to provide unit with input on four (4) external
building alarms
5.
Remote EPO: Connection point for input of remote EPO signal to system. This is a dry
contact connection point. Connection of voltage to this point can cause damage to the
unit. Connect external dry contacts to terminals marked +24v and EPO for EPO circuit. The
return position is if there is also a light for the remote EPO button.
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