
Flushing the PW90 M Filters
1. Install the supply water line to “Water In” bulkhead a.
2. Do not plug the system into the AC socket. (No Power)
3. Remove lower front panel to access filters. To remove, grip bottom of lower
front panel and pull to disengage magnets.
4. Remove the sediment, carbon block and Lead and Cyst filters and flush.
5. Reinstall the sediment and carbon filters in their original places. Filter
flushing is now complete.
6. Replace lower front panel.
FLUSHING THE COMPLETE SYSTEM
During the following steps you should be checking for any leaks, loose
fittings, hot water, cold water and production rate. See next Section- Final
inspection.
1. Turn the water to the system on, plug the system in and let the reservoir fill. RO
systems will fill in one to two hours. Filtration (M) system will fill in 5 to10
minutes.
2. Press dispense buttons to verify flow from hot and cold tanks.
3. Drain cold water into container using the dispense nozzle. Press cold dispense
button until water flow ceases or refer to programming section regarding system
flush mode.
4. Located on the rear of the system is a hot tank drain. Holding a bucket under the
drain, remove drain cap and allow the system to drain until water flow stops.
Replace drain cap.
5. Repeat steps 1 through 4.
6. Allow system to fill.
7. Turn hot switch located on back of unit to “ON” position.
8. Allow unit to sit for 4 hours to reach optimal operating temperature.
PW90 System Programming: Please refer to the LCD
programming guide or Application programming guide.