Graco 232079 Septic System User Manual


 
308768 7
Installation
Supplied Components
Refer to Fig. 2 on page 9.
WARNING
A red-handled bleed-type master air valve (11h)
and a fluid drain valve (D) are supplied. These
components help reduce the risk of serious injury,
including splashing of fluid in the eyes or on the
skin, and injury from moving parts if you are adjust-
ing or repairing the pump.
The bleed-type master air valve relieves air trapped
between this valve and the pump after the air is
shut off. Trapped air can cause the pump to cycle
unexpectedly. Locate the valve close to the pump.
The fluid drain valve assists in relieving fluid pres-
sure in the displacement pump, hose, and gun.
Triggering the gun to relieve pressure may not be
sufficient.
D The red-handled bleed-type master air valve
(11h) is required in your system to relieve air
trapped between it and the air motor when the
valve is closed (see the WARNING above). Be sure
the bleed valve is easily accessible from the pump,
and is located downstream from the pump air
filter/regulator (11a).
D The pump air filter/regulator (11a) controls pump
speed and outlet pressure by adjusting the air
pressure to the pump. It includes an air filter with a
40 micron polypropylene element, to remove harm-
ful dirt and moisture from the compressed air
supply. Locate close to the pump, but upstream
from the bleed-type master air valve (11h).
D The air line lubricator (11b) provides automatic
lubrication of the air motor.
D The air relief valve (11j) opens automatically to
prevent overpressurization of the pump.
D Fluid is supplied to the pump through the suction
hose (16) and tube (50). See Fig. 2.
D The fluid filter (5) includes a 60 mesh (250 mi-
cron) stainless steel element to filter particles from
the fluid as it leaves the pump.
D The fluid drain valve (D), is mounted in the bot-
tom of the fluid filter bowl, and is required in your
system to relieve fluid pressure in the hose and gun
(see the WARNING at left).
D The back pressure regulator (12) controls back
pressure to the gun and maintains proper circula-
tion pressure.
Conversion Modules
Supply Module 239857
Part No. 239857 Supply Module is available to convert
a pump module to a circulation package. The supply
module includes an elevator, stainless steel drum
cover, back-geared agitator with suction tube, and
connecting hardware. See manual 308769.
Heater Modules 239850 (120V), 239851 (240V), and
239852 (220/240V)
Three Heater Modules are available to convert a pump
module to a heated system. Each module includes a
heater configured to the desired voltage, and mounting
hardware. See manual 308771.