Setup
Air Connectio
ns
Red and green 5/32 in. (4 mm) tubing connects the
solenoid manifold to the pump’s dosing valves. See
the Pump Tubing Schematic on the next page.
NOTE: Tubing
lengths must be 18 in. ± 1/2 in. (457
mm ± 13 mm) for
all connections. Always use equal
lengths of tu
bing, to balance the timing of the valves.
Lengths lon
ger than 18 in. (457 mm) will increase
valve respo
nse time.
1. On the bottom of the solenoid manifold are four
ports with tube fittings: UP OPEN, UP CLOSED,
DOWN OPEN, and DOWN CLOSED. These
ports provide air to open and close the pump’s
inlet dosing valves.
Figure 4 Tubing Connections at Solenoid
Manifold, to Pump Inlet Manifold
a. Connect green tubing (G) from the UP OPEN
fitting to the 90° tube fitting on the side of the
INLET UP dosing valve.
b. Connect red tubing (R) from the UP CLOSED
fitting to the 90° tube fitting on the end of the
INLET UP dosing valve.
c. Connect green tubing (G) from the DOWN
OPEN fitting to the 90° tube fitting on the side
oftheINLETDOWNdosingvalve.
d. Connect red tubing (R) from the DOWN
CLOSED fitting to the 90° tube fitting on the
end of the INLET DOWN dosing valve.
Figure 5 Inlet Manifold Tubing Connections
2. On the side of the solenoid manifold are four
ports with 90° tube fittings (not shown): UP
OPEN, UP CLOSED, DOWN OPEN, and DOWN
CLOSED. These ports provide air to open and
close the pump’s outlet dosing valves.
Figure 6 Tubing Connections at Solenoid
Manifold, to Pump Outlet Manifold
a. Conne
ctgreentubing(G)fromtheUPOPEN
fittin
g to the 90° tube fitting on the side of the
OUTLE
TUPdosingvalve.
b. Conne
ct red tubing (R) from the UP CLOSED
fitti
ng to the 90° tube fitting on the end of the
OUTL
ET UP dosing valve.
Figure 7 Outlet Manifold Tubing Connections
6 332339B
