Pressure Sensor Pressure Shut-off Sensor

Remove Rubber End Cap To Adjust Pressure	Non-Adjustable
With 7/32" Allen Wrench	Set at 100PSI

Pressure

Sensor

Boot

	Quick Connect
	lead connect
Figure 4A:	Figure 4B:
Pressure Sensor	Pressure Shut-off Sensor

10A. Connect the other end of the pressure sensor cable with the two spade terminals to the pressure sensor. The connections are interchangeable (Figure 4A).

10B. Connect the other end of the pressure sensor cable with the two ¼" quick connect terminals to the pressure shut-off sensor. The connections are interchangeable (Figure 4B).

11.Set the pressure tank pre-charge at 70% of the desired water pressure setting. To check the tank’s pre-charge, de-pressurize the water system by opening a tap. Measure the tank pre-charge with a pressure gauge at its inﬂation valve and make the necessary adjustments.

12.The pressure sensor communicates the system pressure to the SubDrive300 controller. The sensor is preset at the factory to 50 psi, but can be adjusted by the installer using the following procedure:

a.Remove the rubber end-cap (Figure 4A).

b.Using a 7/32” Allen wrench (provided), turn the adjusting screw clockwise to increase pressure and counter-clockwise to decrease pressure. The adjustment range is between 25 and 80 psi (¼ turn = approximately 3 psi).

c.Replace the rubber end cap.

d.Reset the pressure tank pre-charge to the appropriate pressure.

e.Cover the pressure sensor terminals with the rubber boot provided (Figure 4A).

▲! CAUTION

When increasing the pressure, do not exceed the mechanical stop on the pressure sensor or 80 psi. The pressure sensor may be damaged.

NOTE: Ensure that the system is properly grounded all the way to the service entrance panel. Improper grounding may result in the loss of voltage surge protection and interference ﬁltering.