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Trane CCUN 205-211 User Manual Page 12

Chiller control system.
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DynaView Interface
Chiller Level Mode
Top Level Mode
Waiting to Start
Waiting to Start Sub Modes
Waiting For Condenser Water Flow
Chiller Level Mode
Top Level Mode
Running Sub Modes
Maximum Capacity
Capacity Control Softloading
Unit is Building Ice
Chiller Level Mode
Top Level Mode
Running - Limit
Running - Limit Sub Modes
Demand Limit
The chiller is going through the necessary steps to allow the
lead circuit to start.
The chiller will wait a user adjustable time in this mode for
condenser water flow to be established per the flow switch
hardwired input.
At least one circuit on the chiller is currently running.
The chiller is operating at its maximum capacity.
The control is limiting the chiller loading due to capacity based
softloading setpoints.
The chiller is Building Ice, and will terminate on the Ice
Termination Setpoint based on the Entering Evap Water
Temperature sensor.
At least one circuit on the chiller is currently running, but the
operation of the chiller as a whole is being actively limited by
the controls. The sub modes that apply to the Running top
modes may also be displayed along with the following limit
specific modes.
The number of compressors allowed to operate is being
limited to less than the available number of compressors by
either the BAS system, the front panel demand limit setpoint
or the external demand limit input.


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