Wiring Diagram And Connections; Important Note - Emerson XM670K Installing And Operating Instructions

4.1. Dimensions
5

Wiring Diagram and Connections

5.1.

Important Note

The XM device is provided with a disconnectable terminal block to connect cables with a cross-section of up to 1.6 mm
low voltage connections: RS485, LAN, probes, digital inputs, and keyboard. Other inputs, power supply and relay connections
are provided with a screw terminal block or Faston connection (5.0 mm). Heat-resistant cables have to be used. Before
connecting the cables, verify that the power supply complies with the controller's requirements. Separate the probe cables from
the power supply cables, outputs and power connections. Do not exceed the maximum current allowed on each relay. In case of
heavier loads, use a suitable external relay. N.B Maximum current allowed for all loads is 16A.
The probes should be mounted with the bulb upwards to prevent damages due to casual liquid infiltration. It is recommended
to place the thermostat probe away from air streams to measure the average room temperature correctly. Place the defrost
termination probe among the evaporator fans in the coldest place (where most ice is formed) and far from heaters or from the
warmest place during defrost to prevent premature defrost termination.
5.2. XM670K- All Power Supply
Models with 115V supply: use terminals 8-7 for supply.
Document Part # 026-4280 Rev 1
©2022 Emerson Digital Cold Chain, Inc. This document may be photocopied for personal use.
Visit our website at www.climate.emerson.com for the latest technical documentation and updates.
Figure 4-2 - CX660 and CH660 Dimensions
Figure 5-1 - Wiring and Connections
2
for all
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