Graco ProMix PD2K Operation page 91

Maintenance Screen Screen 4 4 4
Maintenance Maintenance Screen
Maintenance Screen 4 provides the ability to relieve
pump outlet pressure. This feature is only functional
for pumps that have color change valves (fluid
pressure is relieved via the dump valve).
NOTE: This function is particularly useful if your paint
NOTE: NOTE:
kitchen is in a controlled environment, but the PD2K
Dual Panel unit is not and is subject to warm, or even
hot, conditions.
Figure 77 Maintenance Screen 4, Pump Pressure
Relief
Manual Manual Manual Pressure Pressure Pressure Relief Relief Relief
Enter the number of the pump for which you wish
to relieve outlet pressure (pump must have a dump
valve) and press the Pressure Relief softkey. The
system will briefly open the pump's dump valve,
which will allow trapped fluid pressure to evacuate.
Automatic Automatic Pressure Automatic Pressure Pressure Relief
Select the Autodump checkbox to enable the
automated pressure relief functionality. The
automatic pressure relief will perform the same
function as the manual pressure relief, but will
trigger on its own once the pump's outlet pressure
rises above the set Pressure Limit. The system will
only perform a pressure dump when the pump is in
Standby or Off.
NOTE: It is recommended to set the Pressure Limit
significantly above the spray pressure to avoid
unnecessarily dumping fluid.
3A4486D
Relief Relief
Maintenance Screen Screen 5 5 5
Maintenance Maintenance Screen
Maintenance screen 5 displays cycle counts for a
selected color, catalyst, or solvent valve.
Press and hold the Reset button
seconds to reset the counter.
If the system is in Standby, valves can be opened
or closed by selecting or deselecting the box for the
corresponding valve. Leaving this screen will close
all manually-driven valves.
Figure 78 Maintenance Screen 5, Color Valve Resets
Figure 79 Maintenance Screen 5, Solvent Valve
Resets
NOTE: In Fig. 48, the number to the right of "Solvent" NOTE: NOTE:
is the pump number, not the material number.
Setup Mode Screens
for 1-2
91