Installation; Things To Remember - Graco A Series Instructions-Parts List Manual

The TYPICAL INSTALLATION drawing shown on page
2 shows the various components required in a typical
system and the order in which the components should
be installed.
This instruction manual gives instructions for the in-
stallation and operation of the system, and service in-
structions for the modules, solenoid valves and fluid
meters. See the ACCESSORIES section on page 17 for
available Grace components, and the instruction
manuals that are provided with the purchase of these
components for more detailed information on their in-
stallation, operation and service.
Proper installation is the key to the success of your MFC
System. The system will work perfectly the first time if it
is installed properly.
TWO VERY IMPORTANT THINGS TO REMEMBER
ARE:
1. All fluid lines must be absolutely clean and free of
any material which might clog solenoid valves or
fluid meters. Fluid line filters must be installed in
line to protect solenoid valve.
2 . The system must be wired properly. We recom-
mend having a licensed electrician do the job. The
circuits must conform to local codes for Class 2 cir-
cuits, and the right connections must be made for
the system to
connected cable.
work properly. Use only pre-
WARNING
Be sure that all accessory items and system com-
ponents can withstand the pressures developed.
The maximum fluid working pressure of the Fluid
Commander System is 750 psi (52 bar). NEVER ex-
ceed the maximum working pressure of the lowest
rated accessory (valve, pipe, fitting, hose, etc.) in
your system.
Install Dispensing Equipment and Pumps
Mount pumps where they will connect to the fluid tanks
but do not connect them yet. The pumps will be con-
nected to the tanks after the fluid lines are flushed.
Select locations for the dispensing stations and install
your dispensing equipment (S). Hose reels and dispens-
ing bars are available.
Install Air Supply Lines and Fluid Lines
Connect the plumbing for the air supply to pumps. In-
stall a bleed-type, master air valve (G) in an accessible
place for each pump for easy shut off.
NOTE:
If your pumps will supply more than 750 psi
(52 bar) fluid pressure with existing air
pressure, install an air regulator
(HI
upstream from the air solenoid valve (J).
Refer to the TYPICAL INSTALLATION and install your
fluid supply plumbing. Avoid unnecessary turns and
where practical, use long sweeping bends in tubing.
Buy tubing or pipe in long.lengths to reduce the number
of joints. Make sure joints are accessible - never
underground or buried in concrete. Install shutoff valves
(PI at both ends of fluid lines. Remove burrs, clean dirt
and chips from ends of tubing, and ream iron pipe ends.
Blow out fluid lines with air. Do Not install fluid line
filters (Q) or connect lines to solenoid valve (RI until
after flushing lines with fluid.
Install Fluid Meters and Flush Fluid Lines
Install the fluid meters (L) in the fluid line near the pump
outlet, using suitable adapters for the l/2 npt(f) inlet
and outlet of meter. Downstream from the meter, install
a gate valve (N) to isolate the pump and meter for ser-
vicing, etc.
Lines and components are subject to high pressures
when fluid in the line expands due to a rise in
temperature. For automatic pressure relief if the fluid
pressures exceed 900 psi (62 bar), install the Pressure
Relief Kit (MI between the meter outlet and the pump
fluid intake.
Connect fluid hoses from pump to supply line with a
swivel union fitting. Refer to the Typical Installation
drawing. Place the pump intakes in pails of a compatible
solvent. Start the pumps and thoroughly flush the lines.
NOTE: If your system includes a pump air solenoid
valve, to start the pump it must either be by-
passed or wired to the PUMP SOL Position
on the junction strip (D). See page 7.
Close the shut off valve (PI at the supply line outlet and
leave the pump turned on. Check all connections for
leaks. Stop the pump, close the master air valve (G),
and open the shutoff valves (PI to relieve line pressure.
Then tighten any leaking connections.
Remove pails of solvent and connect the pumps to the
fluid tanks.
Install Filters, Connect Solenoid Valve
And Fluid Lines
Install the fluid line filters (Q) in line to protect the
solenoid valves (RI from foreign material in supply lines.
Connect the solenoid valves and fluid supply lines to
dispensing equipment (S). See separate instruction
manuals for dispensing equipment and how to connect
solenoids.
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