AmeriWater 00HRO64800, Operation & Maintenance Manual

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SECTION 6, MAINTENANCE
WARNING: If any component of the water treatment system is changed or replaced,
the user should conduct appropriate tests to ensure that the revised
system meets all standards to which it was initially tested.
WARNING: Always remove the RO+ from the power source and turn off the water
prior to any maintenance activities!
6.1 MAINTAINING THE SYSTEM
1. A Startup Log for the RO+ system has been provided by AmeriWater in Section 4.4.
This must be filled out completely each time the system is used.
2. The hardness of the inlet water should be checked daily. If this is above 0.5 grains,
the membrane will foul.
3. The membranes and carbon or micron prefilter are non-durable components and will
need to be exchanged periodically.
a) The membranes will need to be cleaned or replaced when the flow of product
water decreases more than 10% while the water temperature remains constant
(see temperature correction table in section 2.4).
b) If using a micron pre-filter, this will need to be replaced whenever the
differential pressure on the outlet is 10 PSI or greater than the pressure on the
inlet of the filter housing.
4. The accuracy of the Conductivity display should be verified with a calibrated, hand-
held meter at least annually. If the conductivity display is not within 5% of the hand-
held meter readings, the controller should be calibrated in accordance to the
procedures in Section 5.
6.2 SYSTEM PREPARATION
1. Press the POWER key (the display will show STANDBY).
2. Turn off the main power switch to the system.
3. Switch the main fused disconnect to OFF.
4. Turn off the potable tap water supply to the RO.
5. Relieve the pressure from the system by opening the sample port on the filter as well
as the sample ports on the end of membrane housings.