Emerson XJAL-020Z-CFV-012 Manual page 46

Installation Instructions: XJ Scroll
Overview
Copeland XJ Scroll Condenser Units are used for walk-in cooler and freezer applications. All
units integrate the many benefits of scroll compressor technology, fan speed control, and
Copeland PerformanceAlert™ diagnostic controls.
E2 communicates with the Copeland XJ Scroll Condenser One-way Communication Board
via the RS485 MODBUS network. The E2 is used to receive alarm and notice status from the
XJ Scroll condensers via the One-way Communication board. If the XJ Scroll condenser does
not have a One-way Communication Board, one must be installed for E2 alarm and notice
receiving. The E2 then provides the ability to assign delays and priorities to alarms or notices,
but the alarms and notices can be logged in the E2.
Maximum Number of XJ Scroll units per E2:
E2 Model/Series
RX
CX
Table 1 - E2 Models
Document Part # 026-4909 Rev 1 20-OCT-2011
©2011 Emerson Climate Technologies, Inc. This document may be photocopied for personal use.
Visit our website at http://www.emersonclimate.com/ for the latest technical documentation and updates.
APPENDIX 4
Condenser to E2
300
100
4 8
4 8
400
16
16