22
Air conditioner type: Four-pipe, single-speed, ducted fan coil with two on/off
normally closed valves
Appropriate thermostat:
Prossimo 4111A
Relay
Null
Null
Null
Fan
Line
NC Cooling Valve
NC Heating Valve
Terminal
number
Description
Input/
Output
Electrical characteristics
1
Null
Input
AC 220V / 24V 50Hz
2
To fan speed selector
Output
AC 220V / 24V 50Hz
3
Do not connect
-
-
4
Do not connect
-
-
5
To N/C cooling valve
Output
AC 220V / 24V 50Hz
6
To N/C heating valve
Output
AC 220V / 24V 50Hz
7
Line
Input
AC 220V / 24V 50Hz
Appendix B.
