Carrier Type C Manuel D'installation page 6

Control
Cooling:
Heating:
Open
Open
Open
"
Open
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
LOW HIGH
2V 6V 10V
2V 4V 6V
6V 10V
2V 3V 4V
9V 10V
5V 6V
4V 6V
3V 6V 9V
Inte
This is used in all installations where the control is wall-mounted.
electronic board screenprint.
This is used on all installations with unitmounted control. It is positioned
X3
Internal sensor
Possible causes:
This happens when:
changeover button pressed and at the same time pressing the
speed selection button three times within 1 second. In this way it is
Motorized cold-water valve.
X3
are indicated: