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FORM 160.79-O3
ISSUE DATE: 11/09/2018
FIGURE 20 - CAPACITY CONTROL SCREEN
This screen displays the pertinent parameters associat-
ed with capacity control in relation to Leaving Chilled
Liquid temperature, current and pressure overrides,
and anti-surge control.
DISPLAY ONLY
Evaporator Pressure
Displays the pressure in the evaporator.
[Evaporator Pressure] Override Threshold
Displays the evaporator pressure setpoint below which
the low evaporator pressure capacity control override
takes effect.
Condenser Pressure
Displays the pressure in the condenser.
[Condenser Pressure] Override Threshold
Displays the condenser pressure setpoint above which
the high condenser pressure capacity control override
takes effect.
Motor Current % FLA
Displays the percentage of maximum motor current
delivered to the motor, determined from the highest of
the three phase Motor Currents/Maximum Motor Cur-
rent Limit.
JOHNSON CONTROLS
CAPACITY CONTROL SCREEN
[Motor Current % FLA] Override Threshold
Displays the active input current percent limit, which
is the minimum of Local Input Current Limit, Remote
Input Current Limit, and Pulldown Current Limit or
BAS (ISN) current limit.
Entering Liquid - Evaporator
Displays the temperature of the chilled liquid as it en-
ters the evaporator.
Entering Liquid - Condenser
Displays the temperature of the condenser liquid enter-
ing the condenser.
Leaving Liquid - Evaporator
Displays the temperature of the chilled liquid as it
leaves the evaporator.
Leaving Liquid - Condenser
Displays the temperature of the liquid leaving the
condenser.
SECTION 2 – OPTIVIEW CONTROL CENTER
2
LD27859
65
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