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American Dispensing Company
88 Currant Road / Fall River, MA 02720-4781
14
Several minutes into the purge cycle, check the following:
a) Pressure gauge at the R.O. pump on the base of the
cabinet should read between 140 and 180 psi with the
pump running (see diagram 1). If it is not within range,
adjust back pressure valve to return reading to 160
psi. Back pressure valve is located near the drain out-
let. Unscrew cap an loosen lock nut. Turn adjust-
ing bolt into valve for higher back pressure and
vice versa. Tighten lock nut and replace cap.
b) Visually note any leaks in the system. When the
dispensing valve opens again during purge cycle, check for leaks on the dispensing side at this time.
9. Take a sample of the dispensed water after the purge cycle is over. Smell the water to ensure no odor is
present. If there is, dispense water until water is free of odor.
10. The water is ready for vending.
ATTENTION: MEASURE THE INITIAL FLOW RATE OF THE PRODUCT WATER
FROM THE REVERSE OSMOSIS MEMBRANE WITHIN 24 TO 48
HOURS OF NEW MACHINE OPERATION. SEE SECTION ON R.O.
MEMBRANE FOR PROCEDURE. THIS IS IMPORTANT AS IT
DETERMINES WHEN MEMBRANE NEEDS TO BE CLEANED IN THE
FUTURE.
ATTENTION: TO REDUCE BIOFOULING, IT IS RECOMMENDED THAT A
MINIMUM OF 12 GALLONS BE VENDED EVERY 72 HOURS. THE
LESS THE IDLE TIME BETWEEN VENDS, THE LESS LIKELY
BIOFOULING IS TO OCCUR IN THE R.O. MEMBRANE AND THE
FILTERS.