PeakFlow A, Scale prevention system by Navien

Navien PeakFlow^®A... the complete package

Easy to install with 1" inlet/outlet connections and clips

High strength fiberglass tank with a flexible, zippered, neoprene cover

Heavy-duty mounting bracket

Easy to replace PeakFlow media – lasts up to 5 years

Up-flow system design with easy access to distribution tube and upper and lower baskets

Upper basket design prevents media migration, rotates off and on for easy cleaning

Named a 2022 Sustainable Product of the Year by Green Builder Media.

Extend your labor warranty one additional year when you install a new PeakFlow A scale prevention system along with a new Navien tankless water heater.

PeakFlow^® series video

Description

This highly recommended environmentally friendly system treats hard water issues to address the water quality going into your Navien units, other water-related products and your water supply lines. A “must buy” in areas of hard water. Scale build-up from hard water is the biggest single reason for unit failures.

PeakFlow A prevents scale by converting dissolved hardness minerals into powerless particles that will not attach themselves onto any of the components in the system. PeakFlow A, when sized correctly for the installation, will help to ensure the longevity of your system, and help eliminate hard water quality problems.

System specifications

Maximum pressure: 90 psi/6.2 bar
Maximum temperature: 100°F/38°C
Minimum temperature: 40°F/5°C
Inlet/outlet connections: 1" FNPT
Service flow rate: up to 10 gpm (23 lpm)
Continuous flow rate: Up to 6 gpm (15 lpm)
Capacity: Media does not have a grain removal capacity. However, other contaminants present in the water will gradually degrade the effectiveness of this cartridge (see Operation and Maintenance below).
Unit weight: 15 lbs/6.8 kg
Unit size (W x H): 5-1/2" x 22-1/2"
Media replacement period: 5 years

Water chemistry & limitations

PH: 6.5 to 8.5
Hardness (maximum): 75 grains (1282 ppm CaCO3)
Water Pressure: 15 psi to 90 psi (1.03 bar to 6.2 bar)
Temperature: 40°F to 100°F (5°C to 38°C)
Chlorine: <2 ppm
Iron (maximum): 0.3 mg/l
Manganese (maximum): 0.03 mg/l
Oil & H2S: Must be removed before PeakFlow™A
Polyphosphate: Must be removed before PeakFlow™A
Silica (maximum): 20 ppm* - PeakFlow media does not reduce silica scaling. While silica tends to have a less significant effect on scale formation than other minerals, it can act as a binder that makes water spots and scale residue outside the plumbing system difficult to remove.