3131
Outputs Inputs Power supply User interface
(1)
(1)
(1)
(1)
(1)
(2)
3
(2)
3
(2)
3
(1)
(1)
3
(3)
3
(2)
(3)
(1)
(1)
3
(3)
3
(2)
3
(2)
3
(2)
3
(1)
3
(2)
3
(1)
3
(2)
3
(1)
(1)
3
(2)
3
(1)
3
(2)
3
(1)
(1)
(2)
(1)
(1)
(1)
(1)
1
2
7
7
7
AC 24..250 V
AC 24..250 V
AC 24..250 V
AC 24..250 V
AC 24..250 V
AC 230 V
AC 230 V
AC 24 V
AC 230 V
AC 24 V
AC 24 V
AC 24 V
AC 24 V
AC 24 V
AC 230 V
Batt.
AC 230 V
AC 24 V
AC 24 V
AC 230 V
S
B
B
B
B
B
B
B
B
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
Large setting knob
ON/OFF switch
Heat/off/cool switch
Heat/off/cool switch
Time-prog buttons
Manual CO button, time-prog buttons
Manual CO button, time-prog buttons
On/Off
PWM
3-position
DC 0...10 V
Output H/C changeover
Operating mode switch-over contact
Heat-cool changeover sensor
Remote or return air temperature sensor
External setpoint shift
Power supply
Setpoint knob
Setpoint buttons
Operating mode button (B)/switch (S)
Digital display (LCD), indicator (LED)
Additional operation selector/remarks