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Manual oil flow switch
Drip verification peephole
Oil inlet
Oil outlet
Internal solenoid
Figure 7: Dripmaster EDD-4C Needle Valve Assembly
The internal solenoid is powered by the Dripmaster power source. When powered up, the solenoid
allows oil flow. When powered down, the solenoid blocks oil flow.
To allow oil flow when the Dripmaster is not powered on, turn the manual oil flow switch to the right
90 degrees.
Resetting the Dripmaster
There are two ways to reset the Dripmaster:
1. By disconnecting the power source to the Dripmaster for 10 seconds, and then reconnecting it.
2. By removing the Dripmaster cover, and raising the Control Mode toggle switch to the MAN
position, and then back to the AUTO position.
In both cases, the circuit voltage is interrupted and then restored.
Note: In case (2) above, a random drip rate is displayed initially which can be ignored.