I/O Terminals - Xylem Bell & Gossett Ecocirc+ 20-18 Installation, Operation And Maintenance Manual

4 Installation

4.2.4 I/O terminals

Terminal
1
2
3
4
5
6
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
Constant absolute temperature, ConstT
18
1 2 3 4
Parameter
Temp IN+
Temp IN-
0-10V IN+
0-10V IN-
Not used
Not used
Ecocirc+ 20-18 Installation, Operation, and Maintenance Manual
6
5
Description
External temperature sensor input
External temperature sensor input
0-10V constant speed input
0-10V constant speed reference
Not used
Not used
Description
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.