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Scholar V VAIVA Maintenance & Service Manual 10/2017 Rev.2
n. Forward:
Press once to go to the next screen.
o. Last Screen:
Press once to go to the last screen on the HMI
p. Auto Heat/Cool:
Press once to switch automatically between cooling and heating,
based on room temperature.
q. Manual Heat/Cool:
Press once to manually switch modes by pressing Cooling or
Heating
2. SCREEN 2:
Temperatures
(Read only)
a.
There are four thermocouples located in the unit:
i.
Supply air---Treated discharge air blowing into the room
ii.
Outside air---Ambient outside air entering outside coil enclosure.
iii.
Outside Coil #1---Located in distributor tube bundle serving Coil #2
iv.
Outside Coil #2--- Located in distributor tube bundle serving Coil #2
b.
Temperature and Relative Humidity Transmitter (transmits information to PLC for
control)
i.
Room Temperature---Actual room dry bulb temperature (°F)
ii.
Room Relative Humidity (RH)---Actual room relative humidity (%)
c. Comp. Volts
: DC voltage being sent to compressor controller to set the
compressor speed.
d. Blower Volts
: DC voltage being sent to indoor blower controller to set the blower
speed.
e. Alarms
: Any alarms can be seen in this box. In addition to splash screen on HMI.
f. Forward
: Press once to go to the next screen.
g. Back
: Press once to go to the previous screen
h. Back to Main
: Press once to go back to Main Screen.
