York YST Operation Manual page 18

SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
Pressing the ▲ key, sets the entry value to the de-
fault for that setpoint. Pressing the ▼ key, clears
the present entry. The ◄ key is a backspace key
and causes the entry point to move back one space.
If the dialog box begins with "SELECT", use the
◄ and ► keys to select the desired value.
If the previously defined setpoint is desired, press
the 'X' (Cancel) key to dismiss the dialog box.
3. Press the '' (Enter) key.
If the value is within range, it is accepted and the
dialog box disappears. The chiller will begin to
operate based on the new programmed value. If
out of range, the value will not be accepted and the
user is prompted to try again.
Manual Controls
Some keys are used to perform manual control func-
tions. These may involve manual control of items
such as the pre-rotation vanes, subcooler level control
valve, hot gas bypass valve or oil pump speed. Other
keys in this category are used to initiate/terminate pro-
cesses such as calibrations or reports.
free Cursor
On screens containing many setpoints, a specific "soft"
key may not be assigned to each setpoint value. A soft
key will be assigned to enable the cursor arrow keys be-
low the numeric keypad which are used to "highlight"
the desired setpoint field. At this point, the '' key is
pressed to bring up a dialog prompting the user to enter
a new setpoint value. The 'X' key cancels cursor mode.
(See the Configuration Screen for an example.)
navigaTion
In order to maximize the amount of values which the
panel can display to the user, and in order to place those
values in context, multiple screens have been designed
to describe the chiller operation. In order to move from
one screen to the next, navigation keys have been de-
fined. These keys allow the user to either move "for-
ward" to a sub-screen of the present screen, or move
"backward" to the previous screen. Except for the
Home Screen display, the upper-right "soft" key will
always return the user to the Home Screen. Navigating
with "soft" keys is as simple as pressing the key next to
the label containing the name of the desired screen. The
system will immediately refresh the display with the
graphics for that screen. Following is a layout of all the
screens and how they are connected.
18
Home (Page 20)
Refrigeration System (page 24)
Evaporator (page 26)
Condenser (page 28)
Compressor (page 30)
Proximity Probe Calibration (page 32)
Pre-Rotation Vanes Calibration (page 34)
Oil Sump (page 36)
Variable Geometry Diffuser (VGD) (page 38)
VGD Setpoints (page 40)
Steam System - Manual Start (page 42)
Steam System - Auto Start (page 45)
Turbine (page 48)
Condensate (page 52)
Vacuum (page 54)
Capacity Controls - Fixed Speed Mode (page 56)
Capacity Controls - Variable Speed Mode (page 60)
PID Setup 1 (page 64)
PID Setup 2 (page 68)
Auto/Manual (page 72)
Capacity Control Setpoints 1 (page 76)
Capacity Control Setpoints 2 (page 80)
Setpoints (page 82)
Setup (page 84)
User (page 86)
Comms (page 87)
Printer (page 88)
Sales Order (page 90)
Operations (page 92)
Alarm/Shutdown Setpoints (page 94)
Time Setpoints (page 98)
Configuration 1 (page 100)
Configuration 2 (page 102)
Configuration 3 (page 104)
Pressure Setpoints (page 106)
Time Setpoints (page 110)
Speed Setpoints (page 114)
Ramp Rate Setpoints (page 116)
History (page 118)
History Details (page 120)
Security Log (page 121)
Security Log Details (page 122)
Custom View (page 123)
Custom View Setup (page 124)
Trend (page 126)
Trend Setup (page 128)
Advanced Trend Setup (page 130)
Common Slots (page 132)
FORM 160.67-O1
ISSUE DATE: 4/1/2015
JOHNSON CONTROLS