FORM 160.54-O1
ISSUE DATE: 9/10/2014
JOHNSON CONTROLS
80
SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
Oil Heater (LED – Variable Speed Oil Pump
Only)
Indicates whether the oil heater output is energized.
Oil Seal Lubrication Time Remaining
Access Level Required: SERVICE
If a Seal Lubrication is in progress, this will display the
amount of time remaining in the lubrication process.
Next Oil Seal Lubrication
Access Level Required: SERVICE
This display will show the time remaining until the
next Seal Lubrication when this function is enabled.
Target / Setpoint Oil Pressure
(Variable Speed Oil Pump Only)
The Variable Speed Oil Pump (VSOP), if installed, op-
erates to control to a defined Oil Pressure value. Dur-
ing prelube, and for the first 15 seconds after prelube,
this setpoint value is 45.0 PSID. During this time, this
field will display the target value. After 15 seconds,
this value will display the user-programmed setpoint
Oil Pressure.
Pulldown Time Remaining
(Variable Speed Oil Pump Only)
Displays the time remaining until the user-programmed
Oil Pressure Setpoint is used.
Variable Speed Oil Pump Control Mode
(Variable Speed Oil Pump Only)
Indicates whether the Variable Speed Oil Pump speed
is under manual or automatic control.
Oil Pump Drive Command Frequency
(Variable Speed Oil Pump Only)
Displays the actual speed command being sent to the
VSOP. This value could be the result of automatic con-
trol based on the Oil Pressure Setpoint, or the result of
a manual speed command.
Manual Oil Pump Operation Time Left
Displays the time remaining in the 10-minute Manual
Oil Pump operation described below.
For fields requiring access level of SER
-
VICE. Service Technicians refer to the
OptiView Control Center - Service Instruc
-
tions (Form 160.54-M1) for operation
instructions and explanation of all pro-
grammable setpoints and displayed values.
PROGRAMMABLE
Standby Lube (Enabled / Disabled)
Access Level Required: SERVICE
Allows the user to enable or disable the standby lube
operation. When enabled, this function causes the oil
pump to operate for a period of two (2) minutes at 24-
hour intervals from when the oil pump was last run for
at least 2 minutes.
OIL RETURN MIN
(Software version C.OPT.01.21.307 and later; P,Q,H9
compressors only)
Access Level Required: SERVICE
To avoid an OIL – LOW TEMPERATURE DIFFER-
ENTIAL cycling condition from preventing a chiller
start after running at low load conditions for extend-
ed periods, the Oil Return Solenoid (1SOL) is cycled
closed when the oil temperature gets too low on the P,
Q and H9 compressor chillers, while the chiller is run-
ning. The OIL RETURN MIN SETPOINT key appears
on the OIL SUMP Screen when the Chiller Style/Com-
pressor Type Setpoint (on the OPERATIONS Screen)
is set to P, Q or H9 compressor in SERVICE access
level. This setpoint is programmable over the range of
80.0°F to 110.0°F (default 95.0°F) and controls the oil
return Solenoid as follows:
•
When the compressor is running and the Oil
Sump Temperature is less than the Oil Return Min
Setpoint, close (de-energize) the Oil Return Sole-
noid by de-energizing K12 relay.
•
When the compressor is running and Oil Sump
Temperature is more than Oil Return Min plus
7°F, open (energize) the Oil Return Solenoid by
energizing K12 relay.
•
During coastdown, the solenoid operation is not
changed from standard logic, it remains closed.
During startup the operation is not changed from
standard logic, it remains closed for 1 minute after
System Run.
