Table 48: Programmable
Button Access Description
Chilled Liquid Pump
Operation
Service
Allows a service technician to select chilled liquid pump
control contacts (I/O Board TB2-44/45) operation as either
Standard or Enhanced. service technicians refer to YORK
YMC
2
Service Manual (Form 160.84-M2).
Head Pressure Control Service
Allows the service technician to enable or disable the Head
Pressure Control feature. service technicians refer to YORK
YMC
2
Service Manual (Form 160.84-M2).
Hot Gas Control
(Enabled/Disabled)
Service
Enables and disables the optional Hot gas Bypass Control
feature.
Flow Switch Service
Used to enter the applicable Flow Switch type. YMC
2
chillers
could be equipped with either Paddle-type or Thermal-Type
Flow sensors. The actual type installed must be entered to
allow the program to read the correct input.
Power Failure Restart Operator
Allows the user to select Manual or Automatic restart after
power failure.
Isolation Valves Service Enables or disables optional Isolation Valve control.
Heat Pump Control Service Enables or disables optional Heat Pump control.
Auxiliary VSD Cooling
Control
Service Enables or disables optional VSD Cooling Control.
Optimizer Control Admin Enables or disables optional Optimizer Control.
Table 49: Navigation
Button Description
Home
Access Level Required: operator
Moves to the subscreen allowing configuration of user preferences.
Schedule
Moves to the subscreen allowing definition of the chiller operation
schedule.
User
Access Level Required: operator
Moves to the subscreen allowing configuration of user preferences.
Comms
Access Level Required: operator
Moves to the subscreen allowing configuration of system
communications.
Printer
Moves to the subscreen allowing configuration and control of printer
functions.
75
YMC
2
Mod B with OptiView
™
Control Center
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