![background image](http://html1.mh-extra.com/html/graco/24r968/24r968_installation-parts_2253404022.webp)
c.
Connect yellow tubing (Y) from the DOWN
OPEN fitting to the 90° tube fitting on the side
of the OUTLET DOWN dosing valve.
d.
Connect red tubing (R) from the DOWN
CLOSED fitting to the 90° tube fitting on the
end of the OUTLET DOWN dosing valve.
3.
Repeat these steps for each pump in your
system.
See the following table to understand the relationship
between pump stroke and dose valve actuation.
Table
Table
Table 1
1
1 Dose
Dose
Dose Valve
Valve
Valve Actuation
Actuation
Actuation
Pump
Pump
Pump
Stroke
Stroke
Stroke
Up
Up
Up Inlet
Inlet
Inlet
Valve
Valve
Valve
Down
Down
Down
Inlet
Inlet
Inlet
Valve
Valve
Valve
Up
Up
Up
Outlet
Outlet
Outlet
Valve
Valve
Valve
Down
Down
Down
Outlet
Outlet
Outlet
Valve
Valve
Valve
Up
Open
Closed
Open
Closed
Down
Closed
Open
Closed
Open
INLET UP
OUTLET UP
OP EN
CLOS ED
Gre e n (G)
Re d (R)
Blue (B)
Re d (R)
CLOS ED
OP EN
UP
EXH
INLET DOWN
OUTLET DOWN
OP EN
CLOS ED
Bla ck (K)
Re d (R)
Ye llow (Y)
Re d (R)
CLOS ED
OP EN
DOWN
EXH
Figure 23 Pump Tubing Schematic
22
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