4.2.4 I/O terminals
1 2 3
WS012687A
4 5 6
Terminal
Parameter
Description
1
Temp IN+
External temperature sensor input
2
Temp IN-
External temperature sensor input
3
0-10V IN+
0-10V constant speed input
4
0-10V IN-
0-10V constant speed reference
5
Not used
Not used
6
Not used
Not used
4.2.4.1 Control mode for water temperature
Control modes for water temperature can be activated only by using the
application MY ecocirc.
Mode
Description
Constant absolute temperature, ConstT
Controls the speed of motor to maintain a constant water
temperature in the system
This mode uses the external temperature sensor for heating
and cooling applications.
4 Installation
18
20-18 Installation, Operation, and Maintenance Manual
Summary of Contents for Bell & Gossett Ecocirc+ 20-18
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