Trane CCUN 205-211 User Manual Page 11

Chiller control system.
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CG-SVU02B-E4
DynaView Interface
Chiller Level Mode
Top Level Mode
Run Inhibit
Run Inhibit Sub Modes
Ice Building Is Complete
Start Inhibited by BAS
Start Inhibited by External Source
Diagnostic Shutdown - Auto Reset
Waiting for BAS Communications
Start Inhibited by Low Ambient Temp
Chiller Level Mode
Top Level Mode
Auto
Auto Sub Modes
Waiting For Evaporator Water Flow
Waiting For A Need To Cool
Waiting For A Need To Heat
Power Up Delay Inhibit: MIN:SEC
Description
The chiller is currently being inhibited from starting (and
running), but may be allowed to start if the inhibiting or
diagnostic condition is cleared.
Description
The chiller is inhibited from running as the Ice Building
process has been normally terminated on the evaporator
entering temperature. The chiller will not start unless the ice
building command (hardwired input or Building Automation
System command) is removed or cycled.
Chiller is stopped by Tracer or other BAS system.
The chiller is inhibited from starting or running by the "external
stop" hardwired input.
The entire chiller is stopped by a diagnostic that may
automatically clear.
The chiller is inhibited because of lack of communication with
the BAS. This is only valid 15 minutes after power up.
The chiller is inhibited based on the outdoor air temperature.
Description
The chiller is not currently running but can be expected to
start at any moment given that the proper conditions and
interlocks are satisfied.
Description
The chiller will wait a user adjustable time in this mode for
evaporator water flow to be established per the flow switch
hardwired input.
The chiller will wait indefinitely in this mode, for an evaporator
leaving water temperature higher than the Chilled Water
Setpoint plus some control dead-band.
For water cooled (CGWN), the chiller will wait indefinitely in
this mode, for a condenser leaving water temperature lower
than the Hot Water Setpoint plus some control dead-band. For
a reversible (CXAN) the chiller will wait indefinitely in this
mode, for an evaporator leaving water temperature lower than
the Hot Water Setpoint plus some control dead-band.
On Power up, the chiller will wait for the Power Up Delay
Timer to expire.
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