Thermo King 914 724, Руководство пользователя

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23
Operating Instructions
UNIT CONTROLS
Remote Control Box
1. ON-OFF SWITCH. The master On-Off switch must be
in the ON position to enable this switch. Placing this
switch in the ON position energizes the On light, the
thermometer, and the thermostat. The unit will operate
under the control of the thermostat and the defrost con-
trols. Placing this switch in the OFF position de-ener-
gizes the On light, the thermometer, and the thermostat;
the unit will not operate. If the master On-Off switch is
in the OFF position, this switch is disabled.
2. MANUAL DEFROST SWITCH. Pushing this switch
causes the unit to shift to defrost if the defrost termina-
tion switch is closed (the evaporator coil temperature is
below 42 F [5.6 C]).
3. ON LIGHT. This light comes on when both On-Off
switches are turned ON and the unit is operating.
4. DEFROST LIGHT. This light comes on when the unit
is in defrost.
5. THERMOMETER. The digital thermometer displays
the temperature of the air that is returning to the evapo-
rator from the box.
6. THERMOSTAT DIAL. The thermostat dial is located
inside the remote control box. Loosen the wing screw
to open the remote control box and access the thermo-
stat dial. The outer bezel must be held down to turn the
inner dial. The line on the inner dial indicates the ther-
mostat setpoint.
Optional Cab Control Box
1. THERMOSTAT DIAL. Turn this locking dial to change
the thermostat setpoint. Push the outer bezel down to
turn the inner knob. The setpoint switch must be
pushed to display the thermostat setpoint.
2. SETPOINT SWITCH. Pushing this switch displays the
thermostat setpoint on the LED display and causes the
setpoint LED to light up.
3. ON-OFF SWITCH. The master On-Off switch must be
in the ON position to enable this switch. Placing this
switch in the ON position energizes the On LED and
the thermostat. The unit will operate under the control
of the thermostat and the defrost controls. Placing this
switch in the OFF position de-energizes the On LED
and the thermostat. The unit will not operate. If the
master On-Off switch is OFF, this switch is disabled.
4. MANUAL DEFROST SWITCH. Pushing this switch
causes the unit to go into defrost if the defrost termina-
tion switch is closed (the evaporator coil temperature is
below 42 F [5.6 C]).
5. LED DISPLAY. The thermometer reading (sensor tem-
perature) normally appears on this display. Pushing the
Setpoint switch causes the thermostat setpoint to appear
on this display.
6. SETPOINT LED. This LED lights up when the Set-
point switch is being pushed and the setpoint appears
on the LED display.
7. POWER CORD LED (Model 20 only). This LED
lights up if the truck is turned on while a power cord for
electric standby power is connected to the unit.
8. ON LED. This LED lights up when both On-Off
switches are turned ON and the unit is operating.
9. DEFROST LED. This LED lights up when the unit is
in defrost.
Control Box
1. MASTER ON-OFF SWITCH. Placing this switch in
ON position energizes the 8 circuit that provides power
to the unit’s electrical system. Placing this switch in the
OFF position de-energizes the 8 circuit and disables the
unit’s electrical system.