Veris 3150 MSP3 Operating Instructions Manual page 20

Flush and fill tanks with tap water; clean any foreign matter out of tank using ball valve clean-out.
Set ball valve to open position, allowing water to flow to pumps.
Figures 6a and 6b
Connecting cables to External controller as shown below:
12 V power in
Communication
Sampler solenoid power
Prox sensor
Wash pump power
Figure 7
ball valve:
closed
open
3-4
Pub. # OM20-MSP3-3D