Thermal Care Accuchiller KSE, Operation, Installation, And Maintenance Manual

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User Setup – Discharge Control Setup
Discharge Control Setup Screen
The EC fans modulate in order to maintain the
discharge refrigerant pressure setpoint.
Figure 42 - User Setup – Discharge Control Setup
Screen
Table 7 – Discharge Control Setup Parameters
Menu Item Description Default Value
Mode
In Auto Mode, the fans adjust to
maintain optimum performance.
In manual mode, it holds to the
Manual Mode Position input
valve. AUTO
Kp Proportional PID value 0.010
Ti Integral PID value 250.000
Td Derivative PID value 0.000
Discharge
Setpoint Discharge Setpoint Value 350 PSIG
Low Temp
Setpoint
Low temp setpoint relating to low
percent setpoint – (During the
start sequence) 45°F (7°C)
User Setup – Dynmic Lift Setup
Dynamic Lift Setup Screen
The Dynamic Lift control logic adjusts the chiller
head pressure to improve energy efficiency.
Figure 43 - User Setup – Dynamic Lift Setup Screen
Table 8 – Dynamic Lift Parameters
Menu Item Description Default Value
Action
Enable or Disable the Dynamic lift
feature ENABLED
Kp Proportional PID value 0.010
Ti Integral PID value 250.000
Td Derivative PID value 0.000
EXV Setpoint Optimal EXV target position 95%
User Setup - Modbus RTU Setup
Modbus RTU Setup Screen
This Modbus RTU Setup Screen provides the ability
to modify communication parameters. Default
Modbus RTU Settings: Baud-57600, Data Length-8,
Parity-Odd, Stop Bits-1.
Figure 44 - User Setup – Modbus RTU Setup Screen