Agilent IDP-3 Mode D'emploi page 172

Technical Information
DC
24VDC inlet valve kit for IDP series (VPI16IDP24DC) is shown in the following figure.
It is included in the package if a pump with part number IDP3D21 is purchased.
To install:
1
2
Figure 24 24 VDC Rev Inlet Valve Kit
172
Plug the connector at the end of solenoid valve to the DC jacket on the rear
cowling.
Follow the same instructions to mount the valve body to the pump inlet
as AC rev.