Application Engineering
B U L L E T I N
AE8-1386 R1
needed. If condenser fan control is also needed, a
second pressure transducer or condenser temperature
sensor can be added to read the high side pressure at
the exit of the condenser (reading liquid pressure or
liquid temperature).
This digital controller will also work with temperature
sensors rather than pressure transducers. The two
different types of sensors (temperature and pressure)
cannot be mixed. For example, you cannot use a
pressure transducer for suction and a temperature
sensor for condensing in an application.
Pressure transducers and NTC temperature sensors
are available with the controller kit. If you want to use a
different pressure transducer, consult your Application
Engineer.
Table 3 - Components
Part Number
998-0189-00
943-0017-00
929-0005-00
939-0007-00
939-0008-00
939-0009-00
943-0018-00
943-0019-00
962-0007-00
Description
Complete kit with controller, wire harnesses, pressure and NTC temperature
transducers
Controller only
Wire harness only
Pressure transducer only, PP11 suction
Pressure transducer only, PP30 discharge
Temperature transducer only
TTL/ RS485 Serial Converter
Hot key
Optional terminal box
PP11 - PP30 - Bar
7/16”-20UNF
18,5 12,5 17
48
Figure 1 - XC643CX 14 and 6 Pin Connectors
The XC643CX is provided with 2 socket connectors with
14 and 6 pins. These cable harnesses must be used.
© 2013 Emerson Climate Technologies, Inc.
Printed in the U.S.A.
Figure 2 - Standard Pressure Transducer
PP11 -0.5 to 7 bar (-7 to 100 psig) suction, female
PP30 0 to 30 bar (0 to 435 psig) discharge, female
Note: Alternative pressure transducers may be used.
Refer to Table 7.
5
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