ARTC-SVX013A-EN
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Note: Actual Setpoint equals Remote Setpoint.
With Digital Offset
Remote setpoint and the digital offset can be combined:
Figure 16. Chiller setpoint control - Remote setpoint
with digital offset
In this situation, the controller adds the offset value to the
remote setpoint value.
Example: 49.3 + 1.4 = 50.7
This requires everything in the previous section plus the
Remote Offset Enable input (#4).
Remote Offset
Remote Offset and Digital Offset can be used concurrently:
Figure 17. Chiller setpoint control - Remote offset
with digital offset
To use this scenario the controller requires:
• Inputs:
– Remote Offset Enable – input #4.
• Parameters:
– Remote Set Enable – set to Relative.
The actual setpoint is calculated as below.
User Setpoint + Digital Offset + Remote Offset
42.3 + 1.4 + 0.2 = 43.9
Enhanced EXV Control
The chiller has two options for controlling the EXV(s):
• Disabled – Indicates that the EXV is controlled
externally without any visibility at the HMI.
• ArcticCool – ArcticCool T3C Companion Controller
(preferred control option).
The following table displays the varied EXV control screens
with their options and limitations.
Operating Procedures
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