G
THERMASREG
®
FS-20
Rev. 2020 - V12
Connecting diagram
FS-20
W
1
ON
DIP
Ö
S
+UB GND Tem
p.
SE KE AV
Ö
W
S
SE
KE
AV
GND
UB+
Temp.
5 6 7
4.1 4.2 4.3
1 2 3
NC
NO
COM
Reset
button
min. max.
Operating voltage 24V AC/DC
Operating voltage –UB GND
Output temperature 0-10V = 0...+15°C
Control input 0-10V
Cascading input 0-10V
Output valve 0-10V
(NC) Normally Closed
(COM) Common – changeover (24 V)
(NO) Normally Open
Switching point
adjustment
Plug for
display
Cont
act
pin side
Frost
protection
alarm LED
DIP Switches
FS-20
Resetting after frost protection
(Mode adjustable)
DIP
1
Reset Hand (manually)
Alarm remains saved
O N
Reset Auto (automatically)
Alarm is reset automatically (default)
OFF