OpenSprinkler › Forums › Hardware Questions › OpenSprinkler › Driving 14 valves or 12 + Main Pump from OS 3.0 › Reply To: Driving 14 valves or 12 + Main Pump from OS 3.0
MasterPump on Q1 is separate from all other outputa, so you can use with any program and valve. Additionally, you can wire a valve in parallel to Master Relay Q2, but this valve will work only when Q2 is in ON position simultaneously with the Relay Q2. So, one valve group will have 7 valves, and when Relay Q2 switches OFF, the other valve group will have 6 valves you can operate with. The problem is that Valve 2 must be ON during the program of the first set of valves.
1. Master Q1 is a MasterPump Q1. Relay Q2/Valve 2 = ON, the other valves Q3 to Q8 – according your program. The problem is that Valve 2 will be ON during this program;
2. Master Q1 is a MasterPump Q1. Relay Q2/Valve 2 = OFF, the valves Q9 to Q14 – according to your second program.