3
Version 1
3 mechanical relays (2 on/off, 1 changeover contact)
1 PWM / 0-10V for high effi cency pumps
5 PT1000 temperature sensor inputs
Version 2
2 mechanical relays (1 on/off, 1 change-over contact)
1 electronic relay
for speed control of standard pumps
1 PWM / 0-10V for high effi cency pumps
5 PT1000 temperature sensor inputs
Version 3
3 mechanical relays (2 on/off, 1 changeover contact)
2 PWM / 0-10V for high effi cency pumps
6 PT1000 temperature sensor inputs
2 VFS / RPS direct sensor inputs
Version 4
1 mechanical relay (change-over contact)
2 electronical relays
for speed control of standard pumps
2 PWM / 0-10V for high effi cency pumps
6 temperature sensor inputs
2 VFS / RPS direct sensor inputs
This manual applies to the following hardware versions:
When you are unsure which version you have, check the type label on the side of the controller.
If the version is not readable here, open the controller’s “Service values” menu. The version is
shown in the fi rst line of the service values.
