FORM 160.81-O1 (1020)
ISSUE DATE 10/05/2020
37
JOHNSON CONTROLS
SECTION 2 - OPTIVIEW™ CONTROL CENTER
2
Low Discharge Superheat Events
(Software version C.MLM.05.04.xxx (and later))
Displays the number of low discharge superheat events
that have occurred within the last 300 run hours.
Low Discharge Superheat Run Time
(Software version C.MLM.05.04.xxx (and later))
Displays the total duration of low discharge superheat
events that have occurred within the last 300 run hours.
Oil Supply Solenoid (LED)
Indicates whether the solenoid is presently energized.
Full Load Amps (Electro-Mechanical Starter
Only)
Access Level Required:
SERVICE
Displays the motor current as a percentage of the Full
Load Amps (FLA) value.
Phase A, B, C Current (Solid State Starter Only)
Access Level Required:
SERVICE
Displays the 3-phase motor current values being read
from the Solid State Starter.
Liquid Injector (LED)
Illuminates when the Liquid Injection Solenoid valve
is open, injecting liquid refrigerant into the compressor.
The Discharge Temperature at which the valve opens;
is determined by the Liquid Injection setpoint.
Programmable
[Slide Valve] Load (Manual)
Access Level Required:
SERVICE
This key puts the slide valve control into Manual mode
and loads the slide valve. The slide valve will continue
to load until the Unload, Hold, or Auto key is pressed.
[Slide Valve] Hold (Manual)
Access Level Required:
SERVICE
This key puts the slide valve control into Manual mode
and holds the slide valve in its present position. The
slide valve will remain at this position until the Load,
Unload, or Auto key is pressed.
[Slide Valve] Unload (Manual)
Access Level Required:
SERVICE
This key puts the slide valve control into Manual mode
and unloads the slide valve. The slide valve will con-
tinue to unload until the Load, Hold, or Auto key is
pressed.
[Slide Valve] Auto
Access Level Required:
SERVICE
This key puts the slide valve control into Automatic mode.
Maximum Load Temperature
Access Level Required:
SERVICE
Allows a Service Technician to specify a special load
limit for use in certain applications. Service Techni-
cians refer to OptiView Control Center Service In-
structions (Form 160.81-M1).
Maximum Load FLA
Access Level Required:
SERVICE
This setpoint is used in conjunction with the above
“Maximum Load Temperature” setpoint. Service Tech-
nicians refer to OptiView Control Center Service In-
structions (Form 160.81-M1).
Minimum Load FLA
Access Level Required:
SERVICE
Allows the user to set the compressor motor current
value (15% to 70% FLA) for the Minimum Load Con-
trol feature. This feature assures sufficient oil return to
the Oil Separator. The minimum allowed slide valve
position is that which will maintain the motor current
above the programmed value.
Service Technicians re-
fer to OptiView Control Center Service Instructions
(Form 160.81-M1).
Liquid Injection
(Not applicable to software version C.MLM.05.03. xxx)
Access Level Required:
SERVICE
Allows the Service Technician to specify the Discharge
Temperature at which the Liquid Injection Solenoid
Valve opens to inject liquid refrigerant into the com-
pressor. Service Technicians refer to OptiView Control
Center Service Instructions (Form 160.81-M1).
