Parker AQUA DUO - A455C, Technical Manual

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5.0 OPERATIONS
5.1 System Operation Notes
The freshwater production of the Aqua DUO Desalination System models depends on six
factors:
•
Feed Water Temperature
•
Feed Water Salinity
•
Feed Water Flow Rate
•
Operating Pressure
•
Characteristics of the individual RO Membrane Element
•
Condition of the individual RO Membrane Element
Feed water temperature and salinity vary depending upon location of operation. Feed
water flow is fixed on the Aqua Duo System at 4.3 gallon per minute (19.5 liters per
minute) by design. The only operator adjustment that remains is the operating pressure,
which is adjusted at startup by the operator. Two parameters are controlled by this single
operator adjustment: Operating Pressure and resulting Product Water Flow.
The Operating Pressure is adjusted upward until the Aqua DUO Desalination System
produces the following:
System One Unit Turned ON
(GPH/LPH)
Two Units Turned ON
Simultaneously (GPH/LPH)
A455C-2800 58.3/265
116.6/530
A455C-3600 75.0/341
150/682
A455C-4400 91.7/417
183.4/834
A455C-5200 108.3/492
216.6/984
A455C-5800 120.8/549
241.6/1098
A455C-6800 141.7/644
283.4/1288
Table 5.0: System Capacity with one Unit & Two Units in function
Caution: The maximum Operating Pressure allowed is 950 psi. Do not exceed 950 psi even if
the system does not produce the specified amount of product water. The system automatically
shuts down if the maximum Operating Pressure exceeds 950 psi. External factors, such as Feed
Water Temperature, Feed Water Salinity, or condition of the RO Membrane Element may cause
the system to produce less than specified even though the Operating Pressure is at 950 psi.
5.2 Operation Cautions
•
Open all valves on the piping or hoses leading to and from the system.
•
Check the Oil level in the High-Pressure Pump.
•
Check for any abnormalities such as leaks, damaged hoses, wires, etc.