Flush Cycle Adjustment

Before shipping from the factory the Newport watermaker flush cycle is set to factory default settings. After initial start up, and annually thereafter, the flush cycle parameters must be ad- justed to ensure that the salt water is thoroughly flushed out of the machine while at the same time using the least amount of fresh water possible.

First adjust the flush water pressure regulator. Remove the 1/2 inch vinyl flush water hose where it attaches to the flush water inlet fitting at the feed pump module. Push the Auto store button. Water will begin to flow out of the flush water tube. Using a graduated container, al- low the water to flow into the container for exactly thirty seconds, then push the stop button. If more than 3 quarts (3 liters) of water went into the bucket the pressure regulator is set too high, if less the 2 quarts flow into the bucket the pressure is too low. Adjust the regulator by loosen- ing the lock nut and turning the adjusting screw. Test again until the correct flow is achieved. Reconnect the Flush water tube.

Decrease	Pressure regulator
Decrease
Speed	Increase speed
switch	switch

Next adjust the feed pump flush speed. Mounted under the top of the Feed Pump Module, under the MPC box, is a pump speed controller. On the board are two magnetic switches for adjusting the pump motor rpm. The switches are narrow silver colored bars about 1/2” (1.5cm) long. The Increase Speed switch is labeled S2 and is located near the upper right corner of the board. The Decrease Speed switch is labeled S3 and is located to the right of the six cylindrical capacitors. Each time a small magnet is placed near the switch while the pump is running, a signal will be sent to the controller, changing the speed setting, and the pump will speed up or slow down slightly.

Adjust the flush speed as follows. Push the Auto Store button. Push the Alarm display button until the display reads PREFILTER GOOD REPLACE. The flush valve will open and water will flow backwards through the filters and strainers. After about 30 seconds the back- flush will end and the feed pump will come on, starting the forward flush of the Clark Pump and membrane. After the feed pump starts, close the service valve, (handle crossways). If the bar graph on the display begins to move toward REPLACE on the gauge the feed pump is try- ing to pump more water than the Flush module can supply, and should be slowed down. Turn the service valve to Service. Water should flow very slowly out of the service hose fitting. If flow is more than a trickle, speed up the pump. Optimum flush speed will be the speed at which slightly more water is coming from the flush module than the feed pump is pumping. This setting will ensure that no sea water is drawn in during the flush, but fresh water is not be- ing wasted overboard. Check the flush speed by

Adjust the Pump Off time and Pump On time. The flush begins and ends with the Pump off. Pump off time should be set so that the feed pump comes on just as fresh water reaches the sea cock. Pump on time should be adjusted so that the pump runs just long enough for Fresh water to reach the brine overboard fitting, then stops. Pump On and Pump Off times can be ad- justed from the laptop computer or the display. See the instructions in Section 2. Flush dura-

tion must be set the same as or higher than the total flush time	(two pump off times plus one
pump on time).	29

Newport 400 specifications

The Spectra Watermakers Newport 400 is a state-of-the-art desalination system designed for yachts and boats seeking reliable and efficient freshwater production. This innovative watermaker is known for its compact design, high performance, and user-friendly features. With the ability to produce up to 400 gallons of freshwater per day, the Newport 400 is ideal for extended cruising, offshore adventures, or as a backup water supply.

One of the standout features of the Newport 400 is its patented Spectra Reverse Osmosis technology. This advanced system harnesses the power of reverse osmosis to remove salt and impurities from seawater, ensuring the production of clean and safe drinking water. The Newport 400 operates with exceptional energy efficiency, requiring significantly less power compared to traditional watermakers. This is particularly beneficial for boats relying on limited energy sources like solar panels or generators.

The Newport 400 is engineered for ease of operation and maintenance with a user-friendly control panel. Operators can easily monitor key parameters such as water output, pressure, and system status. The intuitive interface makes it simple to adjust settings and troubleshoot potential issues. Additionally, the system is constructed from high-quality corrosion-resistant materials, ensuring durability and longevity in harsh marine environments.

An impressive characteristic of the Spectra Newport 400 is its ultra-quiet operation. This watermaker is designed to minimize noise, making it perfect for use in the close quarters of a yacht without disturbing the peace on board. The integration of advanced technologies further enhances its performance, including a sophisticated water pre-filtration system that reduces the risk of membrane fouling.

The Newport 400 is also designed with versatility in mind. It can be easily integrated into various onboard systems, allowing for simple installation and operation. Its compact size means it can fit into tight spaces on smaller vessels without sacrificing performance.

In summary, the Spectra Watermakers Newport 400 is a reliable, efficient, and quiet solution for generating freshwater in a marine environment. Its advanced reverse osmosis technology, ease of use, and robust construction make it an ideal choice for boaters seeking independence from shore-based water sources. Whether for leisurely cruising or serious ocean voyaging, the Newport 400 stands out as a top-tier watermaker for modern maritime adventures.