1, 2. AC 24V: AC 24V power input.
3. COM: Public terminal of power control wire for 17 zones; N terminal of AC 24V
4. MST: L terminal of power control wire for Master Zone.
5. Z1: L terminal of power control wire for Zone 1.
6. Z2: L terminal of power control wire for Zone 2.
7. Z3: L terminal of power control wire for Zone 3.
8. Z4: L terminal of power control wire for Zone 4.
9. Z5: L terminal of power control wire for Zone 5.
10. Z6: L terminal of power control wire for Zone 6.
11. Z7: L terminal of power control wire for Zone 7.
12. Z8: L terminal of power control wire for Zone 8.
13. COM: Public terminal of power control wire for 17 zones; N terminal of AC 24V
14. Z9: L terminal of power control wire for Zone 9.
15. Z10: L terminal of power control wire for Zone 10.
16. Z11: L terminal of power control wire for Zone 11.
17. Z12: L terminal of power control wire for Zone 12.
18. Z13: L terminal of power control wire for Zone 13.
19. Z14: L terminal of power control wire for Zone 14.
20. Z15: L terminal of power control wire for Zone 15.
21. Z16: L terminal of power control wire for Zone 16.
22. NC: Not used.
23. R1: Input signal Line 1 for Rain Sensor.
24. R2: Input signal Line 2 for Rain Sensor.
25. T1: Power positive end of 3-wire Temperature Sensor.
26. T2: Signal line terminal of 3-wire Temperature Sensor.
27. T3: Power negative end of 3-wire Temperature Sensor.
28. S1: Public terminal of 485 communication wire (Reserved).
29. S2: A terminal of 485 communication wire (Reserved).
30. S3: B terminal of 485 communication wire (Reserved).
2
Aifro WaterEco User Manual
Introduction