Dometic MCS T6 Operating Manual page 21

MCS T6, MCS T12, MCS T16 Programming
The de-icing feature has two different, selectable behavior modes when it is used in
conjunction with the control panel's built-in room air temperature sensor. It attempts
to compensate for any temperature discrepancy that the faceplate sensor may expe-
rience. Although this discrepancy is not typical, installation variables such as where
the control panel is placed inside the room (e.g. near an open door or in direct sun-
light) can affect how accurately it can read the actual room temperature.
By default with P-8 set to "1" (ON), the algorithm is applied assuming the faceplate
sensor may be reading the room temperature as much as 2.8 °C (5 °F) greater than
the actual evaporator temperature.
With programmable parameter P-8 set to "2", the temperature differential that is
applied to the faceplate sensor reading is increased to 3.9 °C (7 °F) for even more
extreme installations. Setting P-8 to "2" should only be used if a setting of "1" does
not prevent evaporator ice from forming.
Alternately, the installation of an optional alternate air temperature sensor (located in
the return air path) will greatly increase the effectiveness of the de-icing feature, and
this option should be considered whenever the faceplate sensor cannot read the
room temperature accurately.
P-9: High Water Temperature Limit
Use this feature to shut down the unit if the water in condenser coil rises to a danger-
ously high level.
By default it is off, but it can be set between 100 and 150 °F.
The fault code is "PLF".
P-10: Display Brightness Control
The display brightness can be adjusted from 4 (dimmest) to 13 (brightest).
P-11: Fahrenheit or Celsius Selection
The default setting is "°F". Select "°C" for Celsius. Celsius readings are displayed in
tenths, e.g. 22.2.
P-12: Cycle Pump With Compressor
The pump can also be programmed to operate continuously or cycle on demand.
➤ To program continuous operation select "On".
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