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6) Wrap the strainer screen securely with a small piece of plastic wrap (saran wrap, food
wrap or zip lock bag) as indicated in the diagram, place it back in the union.
7) Tighten the two unions that were loosened. Do not over tighten.
8) Turn on the pump and the Digital Nano/Nano+. The plastic will stop water flow to the
Flow Switch, which is part of the Tri-sensor that is located in the upper portion of the
manifold. All water will be forced through the Bypass Valve. (This action will normally
flush out any small bits of debris trapped in the Bypass Valve.)
9) The Digital Nano/Nano+ should detect a low water flow at the Tri-sensor, and activate the
red
“CHECK SYSTEM” light. The Digital Nano/Nano+ will also display the message
“
Error purify off”; “Check flow
”.
10) If the Digital Nano/Nano+ did not display this warning, check the Tri-sensor cable
connections and inspect and clean the Tri-sensor as outlined in the
and
“Cleaning Tri-sensor” sections on pages 13 & 14. If the warning message still does
not appear, then turn the Digital Nano/Nano+ off and contact the factory or your local
dealer for assistance.
11) Turn the pump off.
12) Loosen the unions.
13) Remove the plastic wrap and replace the strainer screen. Tighten the unions.
14) Resume normal operation.
6.3 SERVICING THE CELL
The cell may require removal for periodic visual inspections, or for servicing when debris or calcium
mineral deposits develop. The need to inspect and service the cell is indicated by the
“CHECK
SYSTEM
” light flashing and/or a screen message, “
Error purify off”; “Check flow
” or
“
Warning!”; “Check/clean cell
”.
6.3.1
Removal
The cell is installed with Unions on each end to allow quick and easy installation and removal.
1) Turn off pump and shut off all power.
2) Detach the cell cable from the cell.
3) Unscrew the unions at both ends of the cell. (A strap wrench may be required.)
4) Slide the cell out of the Manifold Assembly.
Figure 7
Unions
Models PPM1 & PPM2
Manifolds