Johnson Controls YORK YVAM 0350, Operation & Maintenance Manual

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Table 51: Programmable
Button Access Description
Present Date Operator Allows the user to specify the present date. This value is critical to logging
system shutdowns accurately and for using the scheduling capabilities.
When prompted to enter a date value, the user must enter the day, month,
and four-digit year (using leading zeroes as necessary). If within range,
the value will be accepted. If out of range, the user is prompted for the
information again. At this point the user may retry the date entry, or cancel
the programming attempt.
Present Time Operator Allows the user to specify the present time. This value is critical to logging
system shutdowns accurately and for using the scheduling capabilities. When
prompted to enter a time value, the user must enter the hour and minute
desired (using leading zeroes as necessary). If the chiller is presently set to
24-hour mode, the time must be entered in the 24-hour format. Otherwise,
the user must also select AM or PM for the entered time. If out of range, the
user is prompted for the information again. At this point the user may retry
the time entry, or cancel the programming attempt.
Clock (Enabled /Disabled) Operator Allows the user to enable or disable the real-time clock in order to conserve
battery life. The clock will be disabled during manufacturing and must
be enabled at system commissioning. In addition, when preparing for
prolonged shutdown, the clock should once again be disabled.
12/24Hr Operator Allows the user to specify the format in which the time will be presented. This
setpoint affects the display of the time on the chiller panel and on all reports
generated. The 12-Hour time format will include the AM and PM modifiers
and show the range of time between 1:00 and 12:59, while the 24-Hour time
format will show the range of time between 0:00 and 23:59.
Change Settings Operator Used to enter the following setpoints. Pressing this button places a green
selection box around the first changeable setpoint. The access level
determines which setpoints can be changed. Use the ▲ and ▼ buttons
to place the selection box around the required setpoint. With the setpoint
selected, press the ENTER ( ✓ ) button. A dialog box appears with the range of
settings.
Table 52: 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.
Sales Order Allows the user to navigate to the Sales Order screen.
Operations Allows the user to navigate to the Operations screen.
65 YVAM Control Center