Dometic MCS T6 Notice D'utilisation page 20

Programming MCS T6, MCS T12, MCS T16
P-4: Compressor Staging Time Delay
The compressor staging delay is provided for installations where more than one
system operates from the same power source. Setting different staging delays allows
compressors to start at different times when power is interrupted.
Units should be staged 5 s apart. The minimum delay is 5 s and the maximum is
135 s.
P-5: Temperature Calibration
Use this feature to calibrate the ambient sensor.
➤ Select P-5.
✓ The ambient temperature appears in the display.
➤ Use the Up and Down Buttons to set the correct reading.
✓ The temperature in the display will increase or decrease as required.
P-6: Failsafe Level
There are four failsafe levels (see "Failsafe and Fault Handling Codes" on page 28).
P-7: Low AC Voltage Shutdown
Use this feature to shut down the unit if the voltage drops to a dangerously low level.
By default it is off, but it can be set from 175 – 205. This feature works immediately at
start up, but while running will require a 5 min delay before displaying a fault to
prevent nuisances.
The fault code is "LAC".
P-8: De-Icing Cycle
The Marine Climate System is equipped with a de-icing cycle to prevent ice build up
on the evaporator coil during extended periods of cooling operation. Installation
variables such as grille sizes, length of ducting, insulation R factors and ambient tem-
peratures determine the cooling run time required to achieve set point. Customer
usage may substantially increase run times by operating the system with the hatches
and doors open.
Programming an unrealistic set point (e.g. 18.3 °C/65 °F) and leaving the door open
will usually cause the evaporator to ice up on warm humid days.
De-icing is accomplished by using an algorithm that closely monitors the room air
temperature in repeating 10 min intervals during a cooling cycle.
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