61
SPECTRUM™ TS Operation
HMI Controller Overview
The HMI (Human Machine Interface) Control
Panel is connected to the microprocessor and is
used to operate the unit. It is located in the truck
cab mounted in or under the dashboard.
The HMI control panel consists of a display and 8
touch sensitive keys. The display is capable of
showing both text and graphics. The four keys on
the left and right sides of the display are dedicated
keys and the functions are described in detail later
in this chapter. The four keys under the display
are “soft” keys. The function of “soft” keys
change depending on the operation being
performed. If a soft key is active, the current key
function will be shown in the display directly
above the key.
Display
The display is used to supply unit information to
the operator. This information includes setpoint
and temperature for all installed zones, zone
operating information, unit gauge readings,
system temperatures and other information as
selected by the operator.
The Standard Display of box temperature and
setpoint for 2 zones is shown here. In the display
shown here, Zone 1 has a setpoint of -10 F and a
box temperature of -9.4 F. Zone 2 has a setpoint
of 35 F and a box temperature of 35.8 F
Microprocessor Power Switch
The Microprocessor Power switch applies 12 Vdc
power to the microprocessor. The switch must be
in the “On” position to operate the
microprocessor. It is located on the unit frame on
the road side of the unit.
NOTE: When the Microprocessor Power Switch
is turned to the Off position, power is still applied
to the Interface Board and the HMI. To
completely remove power from the control
system, disconnect the unit battery.
Figure 37: Microprocessor Power Switch
Turning the Unit On and Off
The unit is turned on by pressing the ON key and
off by pressing the
OFF key. When the On key is
pressed the display will briefly show THERMO
KING as the display initializes.
Then the startup screen shown below appears
while communications are established and the unit
prepares for operation. See Figure 39 on page 62.
1. On Key (Dedicated Key)
2. Off Key (Dedicated Key)
3. Display
4. Defrost Key (Dedicated Key)
5. High Speed Lockout Key (Dedicated Key)
6. Soft Keys
7. Arrow Up- Zone is Heating
8. Arrow Down - Zone is Cooling
No Arrow - Zone is in Null
Figure 36: Dedicated and soft keys
AJA1112
6
5
4
2
3
8
1
666
7
1. On Key
2. Off Key
Figure 38: On/Off Key
AJA1167
AJA1107
1
2
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