Carrier D Manual De Instalación página 6

D
Indicates that the control is in cooling mode ( ).
Indicates that the control is in frost protection
( ).
Red
Indicates that the control is in heating mode ( ).
Indicates the presence of a fault (sensor failed
or not connected).
Indicates that the control is in
( ).
+
Indicates that the control is in
( ) - cooling mode
Red
Indicates that the control is in
( ) - heating mode (
Indicates that the fan is operating at the
selected speed.
Indicates that the selection of the fan speed is
set automatically.
Indicates that the control is in
Indicates that the control is in Energy Saving
mode.
External contact is open.
In open contact position, it permits to activate the frost protection
function ( ).
In open contact position, it permits the fan operation at the selected
In open contact position, it restricts the range of the temperature
selection knob according to the following limits:
minimum selectable temperature: 23°C.
maximum selectable temperature: 21°C.
In open contact position, it permits to activate the fan periodically
In open contact position, it permits to activate the Booster Heating
function (additional heating).
The position of these dip-switches regulates the control current of
the motor. A higher voltage corresponds to a higher speed of the
fan. The selection is made according to the following table:
Closed Closed Closed
Closed Closed Open
Closed Open Closed
Closed Open Open
Open Closed Closed
Open Closed Open
Open Open Closed
Open Open Open
GB - 4
mode
mode
.
mode
).
mode.
MID
2V 10V
2V 4V
8V 10V
2V 3V 4V
8V 9V 10V
5V 7V
4V 8V
3V 9V
This is used in all installations where the control is
and on the electronic board screenprint.
This is used on all installations with unitmounted
control. It is positioned on the return air, close to the fan. To
electronic board screenprint.
X3
Internal sensor
The following alarm situations are indicated:
Possible causes:
The autotest function is activated by holding the seasonal
changeover button pressed and at the same time pressing the " "
button three times within 1 second.
In this way it is possible to check the starting of all fan coils. The
Each of the various units will be activated for 10 seconds in the
following sequence:
Low fan speed.
Medium fan speed.
High fan speed.
Motorized cold-water valve.
Motorized hot-water valve.
X3