Automatic Operation Summary - New Holland T8010 Manual

Automatic Operation Summary

(ATC switch set to "Auto," and "Auto" displays on the Instrument Cluster Display. No fault codes active.)
Controller needs a 2°F (1°C) difference between the setpoint and temperature sensed
Temperature at cab sensor before responding - engaging the compressor or opening the heater
Argument valve. Selecting a setpoint one degree cooler or warmer than the temperature desired
may increase operator comfort.
Blower Speed
Compressor Clutch Compressor clutch is cycled ON or OFF by the controller as needed to drive to or
Cycling maintain the desired cab temperature setpoint.
Heater Control Heater control valve is opened or closed as needed to drive to or maintain the desired
Valve cab temperature setpoint.
Display no longer displays "Auto" for automatic.
Manual Override of
remain automatic, but controller cannot use any speed beyond that selected to achieve
Blower Control
the desired setpoint.
continuously. The clutch is only cycled OFF when the freeze setting - 32° F (0° C) - is
Maximum Cool reached at the evaporator temperature sensor, and then ON again when temperature
Setting Selected sensed warms to 37° F (3° C).
for automatic.
the system to automatic control of compressor, blower and mode door.
Maximum Heat open position
Setting Selected
automatic control of valve, blower and mode door.
* When heating is selected, blower speed remains at 25% until temperature sensed at
Exception
Section 50 - Climate Control - Chapter 1
If difference between cab temperature and
the setpoint is ...
less than or equal to 2°F (1°C)
greater than 2°F (1°C) but less than or equal to
4°F (2°C)
greater than 4°F (2°C) but less than or equal to
6°F (3°C)
greater than 6°F (3°C) but less than or equal to
8°F (4°C)
greater than 8°F (4°C) but less than or equal to
10°F (5°C)
greater than 10°F (5°C) but less than or equal to
12°F (6°C)
greater than 12°F (6°C)
Blower speed remains in position selected by operator.
Turning ATC switch OFF and then to "A" returns system to automatic operation.
Blower speed at 100%.
Moving the temperature control outside the maximum range returns
Blower speed at 100%.*
Instrument Cluster Display no longer displays "Auto" for automatic.
Moving the temperature control outside the maximum range returns the system to
evaporator exceeds 55° F (12.8° C).
Temperature and mode door control
Mode door to mid-cab vents
Instrument Cluster Display no longer displays "Auto"
Mode door to floor vents.
50-1-16
Then the blower speed used by
the controller is ...
25%
35%*
45%*
55%*
65%*
75%*
100%*
Instrument Cluster
Compressor runs
Heater control valve at full