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Scholar V Installation & Startup Manual 07/2016 New
Choose operating modes
with these buttons
Press to advance
screens
Press these buttons
to run the indoor
blower in
Auto
or
On
mode.
The chosen mode
is displayed in
the field below the
buttons.
The mode of operation
is displayed in this field
Figure 19. Mode Selection on Home Screen
I.
In the Cooling Mode, the compressor should be running. It is very quiet and difficult
to hear. In addition, if the room temperature is close to the Cooling Set Point, the
compressor may be running at a low speed which makes it even quieter. Press
the
Forward
button (see Figure 19) to advance the screens until you get to the
Temperature
screen. This screen will let you observe what compressor control
voltage is being delivered to VSD (Variable Speed Drive) of the compressor.
This is the control value
being delivered to the
compressor VSD.
This is the control value
being delivered to the
indoor blower controller.
Figure 20. Compressor and Indoor Blower Control Voltages Display
J. In the Cooling Mode, the compressor control voltage runs between 1 VDC and 6.35
VDC. In the Heating Mode, the compressor control voltage runs between 1 VDC and
9.4 VDC. The blower control voltage changes to adjust according to the compressor
control voltage. It is factory set to run between 5 VDC and 10 VDC. This can be
changed with a password protected adjustment.
K. Heating can be tested and monitored in a similar fashion to cooling.
L. In Emergency Heating, all compressor operation is discontinued.
