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EN
Control Parameters
6 Pump Operate Mode .
Cycles the pump with
the compressor to increase the pump’s life and to
conserve electricity. The pump can be programmed
to cycle on and off with the compressor, or to
operate continuously whenever power is applied. To
program the pump for continuous operation, set to
continuous.
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DX Settings Screen 3
7 Low Press Detection .
When selecting set by
jumper, the low-pressure switch will be disabled if
the enable LP jumper on the main control board is
connected. The low-pressure switch will be enabled
if the LP jumper is removed. Choosing disabled (use
caution) forces the Smart Touch Cabin Control to
ignore the low-pressure switch, treating it as disabled
even if the jumper is removed.
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Choosing disabled (use caution) should only be
done when advised by Dometic Customer Service.
As with all faults, a system lockout (sustained
shutdown) will occur after the fourth consecutive
low-pressure fault.
8 Seawater Temp Low Limit .
If the optional sensor
is connected to the control board, this feature allows
the Smart Touch Cabin Control to switch from
reverse-cycle heat to electric heat when the following
requirements are met:
– An auxiliary electric heater is installed and
enabled.
– The seawater temperature drops below the
factory default 40 °F (4 °C).
– The reverse-cycle heat has operated more than
five minutes.
Once the seawater rises 3 °F above the seawater
low temperature limit, the system returns to reverse-
cycle heating. If an auxiliary heater is not installed, the
Smart Touch Cabin Control will shut down and flash
“LO” then “SE” by default when the seawater drops
below 40 °F (4 °C).
Once the seawater rises 3 °F above the seawater low
temperature limit, the system returns to reverse-cycle
heating and stops flashing “LO” then “SE”. The range
of adjustment is 35–50 °F (2–10 °C).
9 Heat Pump/Cool-Only Mode .
Allows for the heat
pump or the cool-only mode operation. Select HP
to operate in the default heat pump mode, which
allows cooling, reverse-cycle heating, and (optional)
auxiliary electric heat modes. Select CL for cool-only
operation and the unit will operate in cooling or
(optional) auxiliary electric heat modes.
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By selecting CL cool-only mode, a five-minute
compressor delay will initiate whenever the
compressor shuts down because of a set point,
a fault, or a power outage. The five-minute delay
will begin immediately after the compressor shuts
down. The display will show “DLY” to indicate
the system is stabilizing the refrigerant pressures.
If the five-minute delay period passes before the
compressor is called to operate, the compressor
will come on with no delay.
9 .3 Understanding the CW
Operational Settings
This section describes the menu screens and the
operational settings available for the CW system.
Summary of Contents for MCS-CTRL
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