Section 1
Introduction
72183170
8-2016/Rev 01
ORIGINAL INSTRUCTIONS
1-3
Water pressure can be observed on the post-filter pressure gauge on the control panel. Water
pressure is monitored by a 15 psi (1 bar) pressure switch on the low pressure manifold. If the
pressure falls below 15 psi (1 bar) the red indicator light on the control panel will illuminate
indicating low inlet water pressure.
From the manifold, supply water is sent to each of the end caps in the high pressure assembly.
The motor turns the crankcase causing the three plungers in the high pressure system to stroke.
On the inlet stroke, the plunger retracts
creating a low pressure area and allowing the
inlet poppet to open. Inlet water fills the high
pressure cylinder, forcing the discharge
poppet to close.
On the pressure stroke, the plunger extends
pressurizing and compressing the water. The
inlet poppet is forced to close, sealing the
passage. As the water is pushed through the
discharge check valve, the discharge poppet
opens. The water enters the end cap and is
routed to the high pressure manifold.