Energy Saving; Sensor Installation - Carrier D Manual De Instalación

Type D Electronic Control
Control

Energy saving

This function is especially useful when air conditioning at night or
in rooms where the user is likely to be absent for a longer period
of time. In this case, by selecting the function
FAN button repeatedly it is possible to raise temperature by 4°C in
cooling mode and reduce it by 4°C in heating mode. Enabling this
function (Green LED ON) cuts out other displays.
Seasonal changeover
Manual
Selection of heating/cooling is done manually by pushing the button
on the control.
Automatic
The automatic seasonal changeover allows automatic switching of
the fan coil operating mode to cooling or heating, depending on the
temperature set by the user and on the room temperature.
External contact
The control has an input that can be used as window contact or
presence detection. When such a signal is activated (presence of
line voltage on the terminal block contact) the control is set to OFF
(open window) or to Energy Saving (empty room), depending on
the control configuration.
If the control is set to OFF, as a consequence all outputs are
disconnected (fan, valves, etc.) and only the frost protection
function is active if it has been enabled by its corresponding
dip-switch. If the control is set to Energy Saving, the internal
temperature is raised by 4°C in cooling mode and reduced by 4°C
in heating mode.
To switch from one operating mode to the other, keep the Power
button and the speed selection button pressed for at least 5
seconds.
The switching from one configuration to the other is signalled by a
light. The Green LED flashes 3 times when switching from OFF to
Energy Saving and the same green LED remains ON for 3 seconds
when switching from Energy Saving to OFF.
"Night" and "Darkening" mode
If the buttons and the knob are not pressed or used for 10 seconds,
the light is dimmed by the LEDs to reduce the disturbing light. This
function is called "Night" mode. By a special selection, the LEDs
light can be fully darkened ("Darkening" mode).
The "Darkening" mode can be selected by setting the fan speed to
its maximum value and keeping the selection button of fan speed
pressed for 5 seconds. 4 flashes of the red LED indicate the fan
maximum speed. With the same operation it is possible to return to
"Night" mode.
In this case, the same LED is flashing 3 times to signal that the
selection is active.
Booster heating
This function allows the water soilenoid valve and the electric
heaters to work simultaneously. With this function activated by the
dip switch (no. 5) – see section microswitch configuration (dip-
switch)– the function is active.
To avoid over heating due to simultaneous operation of water and
heating elements, the temperature of the incoming water of the coil
is adjusted by a special sensor (optional) that must be positioned
on the inlet pipe.
If the function is active but the sensor is not connected, the control
enters the alarm mode, the red led flashes and all the user devices
are switched off.

Sensor installation

Open the control by loosening the screw  used to close the
control (see fig. 6). Connect the sensor on the connector side of the
electronic board to connector  (see fig. 6).
Connect the other end to the inlet water pipe using the clip and the
strips supplied (see fig. 7). Complete by insulating the pipe with the
insulating tape supplied.
and pressing the
Fig. 6
Fig. 7
Use
Button operation:
POWER this button is used to turn the control on and off. When
it is OFF, all functions are disconnected but the control is still
powered at 230V.
If the frost protection function is selected by the special
microswitch, this function is active even if the control is off.
MODE this button is used to manually switch from cooling to
heating mode and vice versa.
The automatic operating mode is also available: the heating or
cooling mode are automatically selected by the microprocessor
depending on the external temperature.
FAN this button is used to select the fan speed manually (low,
medium and high speed).
Keep on pressing this button to select the automatic fan speed
selection, which is controlled by the microprocessor. If this
operating mode is selected, the yellow LED is on.
Moreover, by using the same button it is possible to select the
Energy Saving function where the room temperature required
is raised by 4°C in cooling mode and reduced by 4°C in heating
mode. The green LED turns on when the Energy Saving mode is
active.
Temperature selector
Its purpose is to maintain the temperature at the desired level. The
reference value at the centre of the range is 20°C.
By turning the knob towards the symbol ( – ) the temperature is
reduced from the original setting (minimum value is 10°C).
By turning the knob towards the symbol ( + ), the temperature is
raised from the original setting (maximum value is 30°C).
E N G L I S H
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