Manual Loading/Unloading Duty Cycle; Oil Flow Delta Pressure Switch Status; Oil Return Gas Pump Fill Solenoid Valve; Oil Return Gas Pump Drain Solenoid - Trane RTHC Installation Operation & Maintenance

where mode is Auto (ROM default), Hold, Load, or
Unload.
The possible values of Y are "Current," "Condenser
Limit," or "Evap Limit."
If no limit mode is in effect, the following is displayed
in place of the limit mode:
"(+) (-) and <Enter> ".

Manual Loading/Unloading Duty Cycle

Manual Loading/Unloading Duty Cycle: xx%
Press (+)(-) to Change Setting
The range of values is 0 to 50% in increments of 1%.
The ROM default is 30%.The slide valve control
triacs will pulse the solenoid valve on a 5 second
period according to the duty cycle as set above, e.g.
a 50% duty cycle setting will cause a 2.5 second
pulse every 5 seconds. This will continue until the
duty cycle is changed or the mode is returned to
auto, hold, or the opposite manual mode.
Master Oil Solenoid Valve
Master Oil Line Solenoid Valve: [mode]
Press (+)(-) to Change Setting
Possible values for mode are Auto (ROM default)
and On.
This item can only be set to "on" or "auto" if the Local
Stop or Diagnostic Shutdown Stop. If the unit is in
any other operating mode, the second line of the
display will say "Unit Must Be in Stop To Set "on""
Also, the mode will automatically be set to Auto if the
chiller is put into Auto mode.
Oil Loss Level Sensor Status
The following display is not a setpoint. It gives the Oil
Loss Level status at the input to the UCM.
Oil Loss Level Sensor Status:
Possible values foir [s] are Wet or Dry.
Installation, Operation and Maintenance
[s]
Note: The dry or wet status is determined by the
chiller module by using a filtered value from the
sensor's A/D input and comparing it to fixed
switchpoint levels.

Oil Flow Delta Pressure Switch Status

The following display is not a setpoint. It gives the Oil
Flow Delta Pressure Switch status at the input to the
UCM.
Oil Loss Level Sensor Status:
Possible values of [y] are Flow Switch is Open/No
Flow and Flow Switch is Closed/Flow.

Oil Return Gas Pump Fill Solenoid Valve

Oil Return Fill Solenoid Valve: [Mode]
Press (+)(-) to Change Setting
Possible values for mode are Auto (ROM default)
and On.
This can only be set to On fromAuto if the operating
mode is Local Stop or Diagnostic Shutdown Stop. If
the unit is in any other mode, the second didplay line
will read: "Unit Must Be In Stop to Set to "on."" Also
the mode will automatically be set to Auto if the
chiller is put in Auto mode.

Oil Return Gas Pump Drain Solenoid

Oil Return Drain Solenoid Valve: [Mode]
Press (+)(-) to Change Setting
Possible values for mode are Auto (ROM default)
and On.
This can only be set to On fromAuto if the operating
mode is Local Stop or Diagnostic Shutdown Stop. If
the unit is in any other mode, the second didplay line
will read: "Unit Must Be In Stop to Set to "on."" Also
the mode will automatically be set to Auto if the
chiller is put in Auto mode.
[s]
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