9
JOHNSON CONTROLS
FORM 160.80-EG1 (808)
time period control over four hours, and verification of
time remaining in pulldown cycle from display readout.
Separate digital setpoint for current limiting between
30 and 100%.
The
ELECTRO-MECHANICAL STARTER (E–M)
screen
displays a picture of the starter and the following values.
The ones below are common among both offerings and the
values will be displayed on both types of starter screens.
From this screen you can perform the following:
Display Only:
• Motor Run (LeD)
• Motor Current % Full Load Amps
• Current Limit Setpoints
• pulldown Demand Time Left
Programmable:
• Local Motor Current Limit
• pulldown Demand Limit
• pulldown Demand Time
The
SOLID STATE STARTER (SSS)
screen displays a
picture of the starter and the following values, which are
displayed in addition to the common ones listed above.
From this screen, you can perform the following:
Display Only:
• Input power
• kw Hours
• Starter Model
• Voltage – phase A, B, C
• Current – phase A, B, C
• Temperature – phase A, B, C
Programmable:
• Full Load Amps
• Voltage Range
• Starting Current
• Open SCR
• Shorted SCR
• kwH Reset
The
SETPOINTS
screen provides a convenient location
for programming the most common setpoints involved
in the chiller control. The Setpoints are shown on other
individual screens, but to cut down on needless search-
ing, they can all be found on this screen. This screen also
serves as a gateway to a sub-screen for defining the setup
of general system parameters. From this screen you can
perform the following:
Display Only:
• Leaving Chilled Liquid Temperature – Setpoint
• Leaving Chilled Liquid Temperature Cycling –
Shutdown
• Leaving Chilled Liquid Temperature Cycling –
Restart
• Current Limit Setpoint
Programmable:
• Local Leaving Chilled Liquid Temperature – Range
• Local Leaving Chilled Liquid Temperature – Setpoint
• Leaving Chilled Liquid Temperature Cycling Offset –
Shutdown
• Leaving Chilled Liquid Temperature Cycling Offset –
Restart
• Remote Analog Input Range
• Local Motor Current Limit
• pulldown Demand Limit
• pulldown Demand Time
• print
The
SETUP
is the top level of the general configura
-
tion parameters. It allows programming of the time and
date, along with specifications as to how the time will be
displayed. In addition, the chiller configuration as deter
-
mined by the micro board program jumpers and program
switches is displayed. From this screen you can perform
the following:
Display Only:
• Chilled Liquid pump Operation (Displays
Standard
or
Enhanced
)
• Refrigerant Selection (Displays
R-22
or
R-134a
)
• Anti-Recycle (Displays
Disabled
or
Enabled
)
• power Failure Restart (Displays
Manual
or
Auto-
matic
)
• Liquid Type (Displays
Water
or
Brine
)
Programmable:
• Set Date
• Set Time
• Clock (enabled/Disabled)
• 12/24 Hour