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Z Series RO System by GE Osmonics
9. Adjust system pressure to 200 to 250 PSI depending on water consumption by
rotating the pressure adjustment knob and pump output throttle valve.
CAUTION:
DO NOT adjust system pressure to more than 300 PSI. DO NOT close throttle valve
completely or severe damage will occur to the pump.
10. Turn off the RO unit and reconnect the product line to the Product Divert Valve
Assembly.
WARNING:
The RO unit must be disinfected prior to first use. (Reference section 4.4, Disinfection
Operations)
2.3.2 Rotation Verification (FOR THREE PHASE MOTORS ONLY):
1. Submersible Multi-Stage Pumps
a. Energize the unit. Let pump/motor run for no longer than ten seconds,
observing the output flow and pump pressure. The flow and pressure should
increase in value. If no increase is noted, the pump may be rotating
backwards. Reverse two legs of the power at the fused disconnect box.
Repeat rotation verification instructions until increase in flow and pressures
are achieved.
2. Non-Submersible Multi-Stage Pumps
a. Energize the unit and check the motor rotation. If the rotation does not match
the arrow on the pump/motor, turn the unit off and reverse two legs of power
at the main power wires at the fused disconnect box. Repeat as necessary to
get the proper rotation.
2.3.3 Balance 3 Phase Power
After the correct rotation of the motor has been achieved the power should be balanced.
This is done with the unit operating and taking a voltage and amperage reading of all
three legs. Then roll all three legs over one position and take the voltage and amperage
reading. Repeat rolling all three legs and taking readings. The three different voltage and
amperage readings should be compared. The wiring combination with the most similar
voltage and amperage on each leg should be used.
1238339b – 16Oct03 2 - 7 Installation Guidelines and Instructions