RXF PLUS MICROPROCESSOR CONTROL PANELS70-401 IOM
Page 12
(Start) TIMER - This is a time delay used to start the com-
pressor. The timer only accumulates time whenever the pres-
sure rises to or above the “START” setpoint and will reset if
the pressure drops below the “START” setpoint.
STOP - The suction pressure must be less than or equal to
the displayed “STOP” setpoint limit in order to stop the com-
pressor. This setpoint works in conjunction with the “TIMER”
setpoint located to the right of it on the display. NOTE: This
limit must be set higher than Low Suction Pressure Cut-
out and the Low Suction Pressure Alarm setpoints.
(Stop) TIMER - The (stop) TIMER is a time delay used to
stop the compressor. The timer only accumulates time when-
ever the pressure drops to or below the “STOP”.
AUTOCYCLE DISPLAY, Page 3*
START=+//./F // MIN.
STOP =+//./F // MIN.
The Auto Cycle display provides for independently adjustable
setpoints to turn the compressor on and off in response to the
suction temperature or as an adjustable setpoint to limit the
minimum slide valve position. The compressor can be started
and stopped by the following temperature setpoints, even if
the capacity control is selected to pressure.
START - The CC (capacity control) Temperature must be
greater than or equal to the “START” setpoint in order to
start the compressor. This setpoint works in conjunction with
the “TIMER” setpoint located to the right of it on the display.
(Start) TIMER - This is a time delay used to start the com-
pressor. The timer only accumulates time whenever the CC
Temperature rises to or above the “START” setpoint and
will reset if the CC Temperature drops below the “START”
setpoint.
STOP - The CC Temperature must be less than or equal to
the “STOP” setpoint in order to stop the compressor. This
setpoint works in conjunction with the “TIMER” setpoint lo-
cated to the right of it on the display.
(Stop) TIMER - The (stop) TIMER is a time delay used to
stop the compressor. The timer only accumulates time when-
ever the CC Temperature drops to or below the “STOP”
setpoint and will reset if the CC Temperature rises above
the “STOP” setpoint.
ANALOG OFFSET DISPLAY, Page 1*
SUCTION DISCH OIL PRESS
+/./ +/ +/ ///./g
ANALOG OFFSET DISPLAY, Page 2*
FILT ECON PRESS
+/ +/ ///./g
ANALOG OFFSET DISPLAY, Page 3*
DISCH OIL SEP TEMP
+/ +/ +/ ///./g
* Display for illustrative purposes only.
SETBACK DISPLAY, Page 1*
SETBACK ACTIVE = ///
The [F3] function key will call up the Setback display. The
Setback feature enables automatic operation at two sepa-
rate suction conditions on a preset time schedule. Having
entered the desired Setback setpoint, enter the start and
stop time or times and select Active: (Yes) or (No).
SETBACK DISPLAY, Page 2*
SETBACK PRESS= ///./G
SETBACK TEMP=+//./F
SETBACK PRESS - The capacity-control setpoint is used
when in the Setback mode and Pressure is selected as the
capacity control desired.
SETBACK TEMP - The capacity-control setpoint is used
when in the Setback mode and Temperature is selected as
the capacity control desired.
SETBACK DISPLAY, Page 3*
SETBACK START=//.//
DAY=/// STOP =//.//
AUTOCYCLE DISPLAY, Page 1*
AUTOCYCLE MIN.SV=//%
ENABLE=pres
MIN. SV - Minimum Slide Valve Position, shown as a per-
centage, will limit the slide valve position to the displayed
setpoint.
ENABLE - Indicates whether Auto Cycle is active (YES) or
not active (NO). Press the [CHANGE] key while at this
setpoint to change the status. Upon deactivation, the com-
pressor will return to the previous mode of operation.
The Analog Offset Display is accessed by pressing [+/-] key.
AUTOCYCLE DISPLAY, Page 2*
START=///./G // MIN.
STOP=///./G // MIN.
The Auto Cycle Pressure Control Display is accessed by
pressing the [F4] key.
The Auto Cycle display provides for independently adjus-
table setpoints to turn the compressor on and off in response
to the suction pressure or as an adjustable setpoint to limit
the minimum slide valve position. The compressor can be
started and stopped by the following pressure setpoints even
if the capacity control is selected to temperature.
START - The suction pressure must be greater than or equal
to the “START” setpoint in order to start the compressor.
This setpoint works in conjunction with the “TIMER” setpoint
located to the right of it on the display.
OPERATION
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