Navigation - York YK-EP B Operation & Maintenance Manual

FORM 160.87-OM1
ISSUE DATE: 8/24/2018
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, variable orifice or oil pump
speed. Other keys in this category are used to initiate/
terminate processes 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 ar-
row keys below the numeric keypad which are used to
HIGHLIGHT the desired setpoint field. At this point,
the () key is pressed to bring up a dialog prompt-
ing the user to enter a new setpoint value. The (X) key
cancels cursor mode. (Refer to the Schedule Screen on
Page 126 for an example.)
JOHNSON CONTROLS
SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION

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 defined. These keys allow the user to either
move FORWARD to a subscreen 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 de-
sired 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.
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