Install The Optional Flow Control; Fluid Connections; Pressure Test And Solvent Flush The System - Graco PrecisionMix ii Instructions And Parts List

Install the Optional Flow Control

NOTE: Refer to the system electrical schematic,
Manual 309138, included with the system.
1. See Fig. 3.20. Install the fluid regulator (K) in the
spray booth, on the fluid supply line to the spray
gun. Locate the fluid regulator as close to the
spray gun as possible.
2. Install the I/P transducer (F) in the non-hazardous
area, but as close to the fluid regulator as possible.
Mount the transducer on a vibration free surface.
100 ft. (30.5 m) of cable (C12) is supplied, con-
necting the I/P transducer to the controller.
3. Connect a minimum 3/8 in. (10 mm) air supply line
to the I/P transducer (F).
4. The I/P transducer supply air must be a maximum
of 100 psi (0.7 MPa, 7 bar), free of oil or water,
and filtered to a minimum of 40 micron.
To Controller
Air in
Non-Hazardous Area
Hazardous Area
Fluid in
K
Fig. 3.20
3–20
System Installation
C12
F
Air out
Fluid out
9004A

Fluid Connections

Figs. 3.1 and 3.2.
1. Connect the solvent supply line to the solvent inlet
on the fluid panel. If your system has color
change, make solvent connections to the color
change stack and the catalyst change stack.
2. Connect the resin supply line, catalyst supply line,
and reducer supply line to their respective inputs
on the fluid panel. The fluid supplies must have
consistent, non-fluctuating pressure through the
full flow rate range.
3. Connect a fluid hose between the spray gun and
the mixer outlet.
4. Connect an atomizing air hose from the air flow
switch to the spray gun.
Pressure Test and Solvent Flush the
System
Before operating the system, perform the Pressure
Test and Solvent Flush procedures on page 3–36.
See system assembly drawings on electrical schemat-
ic 309138 for more specific details.
Installation