AWE SPD2H, Owner'S Manual

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G01
SPD Owner's Manual
11
INITIAL START UP
First open the prefilter vent valve. Turn on the feed water to the system and then open the main shut
off valve. After a few minutes the air in the prefilter will escape and the vent valve can be shut.
Make certain the mode switch is in the "Service & Rinse" position and turn on the system at the circuit
breaker/power switch. Before shipment a wire was detached from the Keyence PLC so the pump will
not start. Turning on the system does open the feed solenoid valve however and commences water
flow.
Open the green flush valve to hasten the purging process.
Open the pump vent valve and the annulus drain valve to expel air from the housing. Close it after a
minute or two.
After some time the air will all be displaced and a small flow through the product water flowmeter will
commence.
Now close the green valve and turn off the system. Remove the control cover and reattach the brown
wire to Keyence output terminal #502.
Now turn on the system. There will be a loud noise as the motor contactor is pulled in and the pump
should start.
If the low feed warning light comes on and the pump stops, turn the system on and off again to reset it.
After several minutes, the operation should stabilize with about 20 PSI of feed water pressure, 185 to
195 PSI pump outlet pressure, and up to 50 PSI product pressure.
Check for leaks.
Before the system is used productively, it should be put in a disinfection cycle.
Disinfection Instructions
Need for Disinfection : While the reverse osmosis membrane is an efficient physical filter for the
removal of bacteria and viruses in the feed water, the ability to deliver near sterile water with low
pyrogenicity is dependent upon periodic disinfection of the RO membrane and all portions of the product
water pathway. Assurance of bacteriological quality also requires regular sampling and testing of the
product water for pyrogen level with an LAL test.
Since any chlorine that might have been in the feed water was removed prior to the RO system, there is
nothing in the water to inhibit the growth of bacteria. Bacterial growths on the feed side of the
membrane can reduce output quantity and quality. Bacterial growths on the product side of the
membrane or anywhere on inside surfaces downstream constitute a biofilm that will release pyrogens
and live bacteria.