Trane TACW Series Installation, Operation And Maintenance Manual page 37

Table 12. EXV control options
Screen
ARTC-SVX014A-EN
Controls
ArcticCool EXV Control.
• This option requires ArcticCool T3C Companion
Controller. The T3C Companion works with the
ArcticCool Main Controller; they share
information including Inputs and Outputs. The
Companion cannot work as a stand-alone
controller because it does not have the inputs
and outputs to sustain the functionalities built in.
It is designed as a companion relying on the
Main Controller.
• Five control modes:
– Liquid Level High Pressure side – requires
Level sensor on the condenser.
– Liquid Level Low Pressure side – requires
level sensor on the Evaporator.
– Suction Superheat.
– Discharge Superheat.
– Sub-Cooling – Requires liquid line
temperature sensor.
• Setpoint adjusts automatically based on chiller
capacity.
• Capable of controlling up to four refrigeration
circuits.
ArcticCool EXV Setup Page.
• PID Loop constants: P-Gain and Integral
• Minimum Setpoint (for Sub-Cooling mode only).
• Master Setpoint display:
– Adjustable Setpoint for all the modes but
Sub-Cooling.
– Maximum Setpoint (for Sub-Cooling mode
only).
EXV Common Parameters.
Circuit Common Parameters:
Max and Min operational valve values.
• Start Position and Time
• Sensor Failover Position
• Low Lift Functions
Operating Procedures
Access
Main Menu > Devices Menu > EXV
Main Menu>Devices Menu> EXV>Setup
Main Menu>Devices Menu>EXV>Setup>Common
Parameters
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