Orion System E-BUS Distribution - Manual (Page 3)

Technical Guide 3
E-BUS Distribution Module
Overview
Figure 1: E-BUS Distribution Module
Overview
The E-BUS Distribution Module (OE365-23-EBD) is a communications
device that allows E-BUS Modules to be connected to controllers with
I
2 C communications such as the VCM-X Controller, the SA Controller,
and their standard expansion modules.
The E-BUS Distribution Module is also used to connect selected Air
Flow Monitoring Stations to the VCM-X Controller. See page 8 for
further details.
The E-BUS Distribution Module allows the following E-BUS Modules
to be connected to the VCM-X Controller:
• Dual Digital Module (OE370-23-DD)
• Full Digital Module (OE370-23-FD)
• One Condenser Head Pressure Module (OE370-23-HP1C)
• Two Condenser Head Pressure Module (OE370-23-HP2C)
• Water Source Heat Pump Protection Module
(OE334-23-WPM and OE-334-23-WPM-R22)
The E-BUS Distribution Module allows the following E-BUS Modules
to be connected to the SA Controller:
• Two Condenser Head Pressure Module (OE370-23-HP2C)
• Water Source Heat Pump Protection Module
(OE334-23-WPM-A)
The E-BUS Modules are connected to the E-BUS Distribution Module
by HSSC Series Modular Cables that can be ordered in various lengths.
See Figure 3 for the HSSC cable length options.
All E-BUS Modules require a 24 VAC power connection with an ap-
propriate VA rating. The E-BUS Distribution Module can provide limited
power for E-BUS Communicating Sensors (limited to 400 mA total).
The E-BUS Distribution Module also provides terminal block connec-
tions for applications that require pulling multi-conductor wire through
conduit for applications requiring longer wire runs.
NOTE: The E-BUS Distribution Module contains no user-
serviceable parts. Contact qualifi ed technical personnel
if your module is not operating correctly.