13
62--10601
The unit will remain in low speed after engine start-up - 5 minutes
for XT products, 10 minutes for all others. If the unit fails to start,
shuts down on a safety, or fails to run for the minimum run time,
three consecutive times, the fault light is on.
Low speed Start--up for low coolant temperatures is available on
Configuration 7 for all units except those with EEPROM REV 3.23
and 3.24 -- Refer to Page 21 for unit data.
The microprocessor controller monitors box temperature, battery
voltage, and engine coolant temperature.
Whenever the unit starts in Start--Stop, it will run until:
SIt has run for the predetermined minimum run time.
SThe engine coolant temperature is above 122°F(50°C)
SThe box temperature is at setpoint.
The controller will not shut off the engine if the battery voltage is not
sufficient to restart it. Battery voltage above approximately 13.4
volts is required for shutdown. This varies depending on ambient.
Look at battery voltage in data list to find out whether shutdown
voltage has been reached. If there is a “+” in front of the number,
the voltage is enough to shutdown and restart. If only the number
appears, the voltage is still too low for shutdown.
The controller will restart the engine if any of the following criteria
have been met:
SBox temperature has changed by ¦ 11°F(¦ 6.1°C)for setpoints
in the perishable range and +11° F(+6.1°C) for setpoints in the
frozen range DURING minimum off time.
SBox temperature has moved away from setpoint by ¦3.6°F
(2.0°C) AFTER minimum off time for setpoints in the perishable
range or +0.5°F(0.3°C) for setpoints in the frozen range.
SThe battery voltage drops below 11 Vdc (12.2 Vdc for units with
EEPROM Rev 3.25 and higher -- Refer to Page 21 for unit data).
SThe engine coolant temperature drops below 34°F(1°C).
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