Trane CGWF Installation Operation & Maintenance page 63

Table 18 Operating Modes
Chiller Level Mode
Ice Building
Hot Gas Bypass Time Remaining: MIN:SEC
Top Level Mode
Running - Limit
Sub Modes
Demand Limit
Evaporator Temperature Limit
Hot Start Limit
Compressor Inhibit
Top Level Mode
Shutting Down
Sub Modes
Evaporator Water Pump Off Delay: MIN:SEC
Top Level Mode
Misc.
Misc. Sub Modes
Manual Evaporator Pump Override
Diagnostic Evap Pump Override
Manual Condenser Pump Override
Manual Compressor Control Signal
Table 19 Circuit Level Operating Modes
Circuit Level Operating Modes:
Top Level Mode
Stopped
Sub Modes
Diagnostic Shutdown - Manual Reset
Front Panel Circuit Lockout
Top Level Mode
Run Inhibit
Run Inhibit Sub Modes
Diagnostic Shutdown - Auto Reset
Condenser Pressure Limit
Top Level Mode
Auto
Auto Sub Modes
Top Level Mode
CGWF-SVX01A-EN
Controls Interface
The chiller is Building Ice, and will terminate on the Ice Termination Setpoint
based on the Entering Evap Water Temperature sensor.
The chiller is running in Hot Gas Bypass with the specified time remaining.
Description
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.
Description
The number of compressors allowed to operate is being limited to less than
the available number of compressors by either the BAS system or the front
panel demand limit setpoint.
The control algorithm takes action to avoid a nuisance trip when the leaving
water temperature is approaching the Leaving Water Temp. Cutout Setpoint.
The second compressor on a given circuit is being held off based on leaving
evaporator temperature.
The KW limit binary input is open. The second compressor of each circuit
shall be prohibited from starting or running.
Description
The chiller is still running but shutdown is imminent. The chiller is going
through a compressor run-unload.
Description
The Evaporator pump is executing the pump off delay timer.
Description
These sub modes may be displayed in most of the top level chiller modes
Description
The evaporator water pump relay is on due to a manual command.
The evaporator water pump relay is on due to a diagnostic.
The condenser water pump relay is on due to a manual command.
Chiller capacity control is being controlled by DynaView or TechView.
Description
Description
The circuit is not running, and cannot run without intervention.
Description
The circuit has been shutdown on a latching diagnostic.
The circuit is manually locked out by the circuit lockout setting - the
nonvolatile lockout setting is accessible through either the DynaView or
TechView.
Description
The given circuit is currently being inhibited from starting (and running), but
may be allowed to start if the inhibiting or diagnostic condition is cleared.
Description
The circuit has been shutdown on a diagnostic that may clear automatically.
The circuit is being inhibited from starting due to high condenser pressure.
Description
The circuit is not currently running but can be expected to start at any
moment given that the proper conditions are satisfied.
Description
No Circuit Sub-Modes
Description
Description
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