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7 Flow Control—The flow control regulates the flow of water through the Reverse Osmosis cartridge at the required rate to produce high quality water. The control is located in the 1/4″ drain line exiting off the manifold.

8 Faucet and Electronics—The countertop faucet dispenses filtered drinking water when opened. It has a hand-operated lever, with variable flow adjustment. You can keep the faucet open by removing your hand from the lever once water is flowing. To comply with plumbing codes, an air gap is built into the faucet drain water connection.

The electronic faucet provides a six month timer and flow monitor to remind you when it is time to replace your prefilter and postfilter. Replace these when the amber filter light flashes. The faucet also provides an amber RO light indicating when the Reverse Osmosis cartridge is no longer filtering out at least 75% of the TDS. Replace this cartridge when this amber light flashes. The green flashing light will indicate the system is functioning properly.

Automatic Shutoff Assembly—To conserve water, the drinking water system has an automatic shutoff. When the storage tank has filled to capacity and the drinking water faucet is closed, pressure closes the shutoff. Water flow to the Reverse Osmosis housing is shut off until drinking water is used again, and pressure drops in the Reverse Osmosis system.

Check Valve—The check valve prevents a backward flow of product water from the storage tank. A backward flow could cause the Reverse Osmosis membrane to rupture.

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PNRQ21LRB, PNRQ21LBN specifications

The GE PNRQ21LBN and PNRQ21LRB are two advanced models from General Electric's line of innovative HVAC (Heating, Ventilation, and Air Conditioning) solutions. Designed with both efficiency and performance in mind, these units cater to residential and commercial needs, ensuring comfort in a variety of settings.

One of the standout features of the PNRQ21LBN and PNRQ21LRB is their energy efficiency. Both models utilize GE's cutting-edge inverter technology, which allows for variable speed operation. This means that the compressor can adjust its output based on the specific cooling or heating needs, leading to significant energy savings while maintaining optimal indoor climates. As a result, these units are not only environmentally friendly, but also cost-effective over time.

Another key characteristic is their quiet operation. The engineers at GE have invested in sound-dampening technologies that minimize operational noise, allowing users to enjoy a peaceful atmosphere, whether in a home, office, or commercial space. This is particularly beneficial for areas where noise sensitivity is crucial, such as bedrooms or conference rooms.

The PNRQ21LBN and PNRQ21LRB also come equipped with advanced air filtration systems. These systems effectively remove dust, allergens, and other airborne particles, contributing to improved indoor air quality. The filters are easily accessible for maintenance, ensuring that users can keep their systems running at peak performance with minimal effort.

User-friendly interfaces are another hallmark of these GE models. They feature intuitive control options that allow users to set schedules, adjust temperature preferences, and even monitor energy usage. This level of control empowers users to optimize their HVAC systems according to their lifestyle and needs.

In terms of design, both models boast a sleek and modern aesthetic, making them suitable for various architectural styles. They can fit seamlessly into any environment, enhancing the overall appeal of the space.

Overall, the GE PNRQ21LBN and PNRQ21LRB exemplify a blend of efficiency, quiet operation, advanced filtration, and user-centric design, making them ideal choices for anyone looking to enhance comfort and improve energy efficiency in their living or working environments.