Johnson Controls YORK YVAM 0350, Operation & Maintenance Manual

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Compressor screen
Figure 16: Compressor screen
This screen displays a cutaway view of the chiller compressor, revealing the impeller, and shows
all conditions associated with the compressor. Animation of the compressor impeller indicates
whether the chiller is presently in a Run condition. This screen also serves as a gateway to
subscreens for navigating to capacity control and displaying MBC, surge, and VGD and power panel
detail.
Table 20: Display only fields
Field/LED name Description
Discharge Temperature Displays the temperature of the refrigerant in its gaseous state at discharge of the
compressor as it travels to the condenser.
Discharge Superheat Displays the discharge superheat, calculated as Discharge Temperature –
Condenser Saturation temperature .
Motor Run (LED) Indicates ON when the digital output run command to the variable speed drive is on.
Input % Full Load Amps Displays the chiller current as a percentage of the job input Full Load Amps (FLA)
value.
Motor % Full Load Amps Displays the current to the motor as a percentage of the motor maximum current.
VSD Output Frequency Displays the variable speed drive frequency.
Programmable
There are no programmable fields on this screen.
Table 21: Navigation
Button Description
Home Causes an instant return to the Home screen.
Capacity Control Causes an instant transfer to the Capacity Control screen.
MBC Moves to the subscreen allowing view of the MBC parameters and event log.
Surge Moves to the subscreen that allows viewing and programming of the surge protection
feature.
YVAM Control Center 40