The Well Commander with a Model 115-36 Digital Control Valve
Initial setup has been performed for the well(s), which includes user selection of the mode of control desired.

Startup Control Sequence: The controller receives a valid run command. It then checks to make sure well depth is above minimal level (user selection 1) and there is no flow before star ting the pump. The controller star ts the pump against the closed valve until the star t-up delay times out. The controller selected input mode then opens the valve at an adjustable, controlled rate. The controller will then control the selected input by positioning the valve (open or close) by the solenoid pilots (2 and 3) to maintain the user selected set point.

Case 1:
Controlling Well Depth: In this mode the user selects three (3) set points:
1) WDC- Well Depth Control
2) WDA - Well Depth Alarm (lowest allowed depth)
3) WDR - Well Depth Recovery (restar t point)

Case 2:
Controlling Well Flow: In this mode the user selects three (3) set points:
1) WFC- Well Flow Output Control
2) WDA - Well Depth Alarm (lowest allowed depth)
3) WDR - Well Depth Recovery (restart point)

Case 3:
Controlling Valve Outlet Pressure: In this mode the user selects three (3) set points:
1) OPC- Valve Outlet Pressure Control
2) WDA - Well Depth Alarm (lowest allowed depth)
3) WDR - Well Depth Recovery (restar t point)

If during any of the 3 modes of operation above the well drops below the WDA preset depth, the system will trigger to stop, alarm, or warn the user (user selectable). The Well Commander will only restart** when the WDR depth has been reached or by user intervention (remote or local).
**Restart will only happen during a valid run command.

Shut-Down Control Sequence: When the controller run command becomes invalid, the controller will close the valve(s) at an adjustable, controlled rate, and after the valve(s) has closed, the pump will shut off.

Hydraulic Reverse Flow Check Feature: Should the pump lose discharge pressure while continuing to run, the "check feature” (6A and 6B) closing will shut off the power to the pump. If power is lost to the system, the "check feature” also closes the valve(s). The check closing will not be instant, thus there is potential for a minimum amount of reverse flow. The pump should be equipped with a non-reverse ratchet.

Installation: The Well Commander controller should be located within 2,500 ft. of all transducers in order to accurately control the Model 115-36 Digital Control Valve(s). The wiring from the transducers to the controller shall be 20 AWG twisted pair shielded cable in accordance with any local low voltage code requirements. Wiring size to the valve solenoids shall be a minimum of 18 AWG and should follow local electrical codes for voltage level being used.