The VIQUA PRO20 is a Professional series ultraviolet (UV) system for a large home, farm or light commercial building. It is tested and certified by NSF International to NSF/ANSI 55 Class A and CSA B483.1 at 20 gpm (76 lpm; 4.5 m³/hr), which is the standard for disinfecting microbiologically contaminated water such as an untreated private well. VIQUA states it inactivates E. coli, fecal coliform, Cryptosporidium, Giardia and rotavirus.
A UV sensor and flow meter work together so the controller can show the real-time UV dose and raise an alarm if it drops. An optional solenoid valve can shut off the water if treatment falls below a safe level. LightWise technology dims the lamp when no water is flowing, which keeps the chamber below 40 °C and slows mineral build-up on the quartz sleeve. VIQUA estimates about 30% energy savings and up to 60% less sleeve fouling.
The PRO20 uses a single high-output amalgam lamp rated for up to two years. A CoolTouch fan cools the chamber and the sleeve locks with a quarter turn, so no tools are needed. The chamber must be installed vertically on the cold water line, after a 5 micron sediment filter.
Okanagan Aquatech installs and services this system, including water testing and sizing for your property.
Features
- NSF/ANSI 55 Class A certified at 20 gpm
- UV sensor and flow meter give a real-time UV dose reading
- LightWise dims the lamp during no-flow periods
- CoolTouch fan keeps the chamber cool without wasting water
- Amalgam lamp rated for up to two years
- Tool-free quarter-turn sleeve nut
- Optional plug-and-play solenoid valve and COMMcenter display
Specifications
| Rated flow (NSF/ANSI 55 Class A, 40 mJ/cm²) | 20 gpm (76 lpm; 4.5 m³/hr) at 70% UV transmittance |
|---|---|
| Certification | Tested and certified by NSF International against CSA B483.1 and NSF/ANSI 55 for Disinfection Performance, Class A |
| UV chamber | 31 in. × 4 in. (78 cm × 10 cm), 316L stainless steel |
| Controller / power supply | 650709-006, 13 in. × 6.5 in. × 4.5 in. (33 cm × 16.5 cm × 11.5 cm) |
| Lamp | 602855 high-output amalgam lamp, rated service life up to 2 years (18,000 hours) |
| Quartz sleeve | 602975 |
| UV sensor | 650580 |
| Inlet and outlet ports | Combo: 1-1/4 in. MNPT / 1 in. FNPT |
| Electrical | 100–240 V, 50/60 Hz, 2.5 A max; 160 W (lamp 140 W) |
| Operating pressure | 15–125 psi (103–862 kPa) |
| Water temperature | 2–40 °C (36–104 °F) |
| Shipping weight | 28 lb (12.7 kg) |
| Installation | Vertical only, indoors, cold water line |
| Features | UV sensor, flow meter, LightWise lamp dimming, CoolTouch fan, audible lamp failure and lamp replacement alarms, visual lamp life remaining |
| Options | Solenoid valve 650627; 4–20 mA sensor output; COMMcenter display 270272-R |
| Recommended water quality | Hardness under 7 gpg (120 mg/L), iron under 0.3 mg/L, manganese under 0.05 mg/L, tannins under 0.1 mg/L, turbidity under 1 NTU, UV transmittance over 75% |
| Warranty | VIQUA limited warranty: 10 years on the UV chamber, 5 years on electrical and hardware components, 1 year on lamps, sleeves and sensors (owner’s manual) |
Maintenance
Replace the 602855 UV lamp every two years (18,000 hours) when the controller alarms. Inspect and clean the 602975 quartz sleeve at each lamp change and replace it if it cannot be cleaned. LightWise extends the time between sleeve cleanings. Keep the 5 micron sediment pre-filter changed.
Replacement parts
- 602855 – UV lamp (spec sheet)
- 602975 – quartz sleeve (spec sheet)
- 602850-102 – lamp and quartz sleeve kit (VIQUA product page)
- 650709-006 – power supply / controller (spec sheet)
- 650580 – UV sensor
- 270272-R – COMMcenter (optional accessory)
- 270268-R – 4–20 mA splitter (optional accessory)
- 650627 – solenoid valve (optional)
Downloads
- VIQUA LightWise PRO10, PRO20 and PRO30 Specification Sheet (LIT 520336-R) (PDF)
- VIQUA Professional Series Owner's Manual 602936 Rev AU (PRO10, PRO20, PRO30, PRO50) (PDF)
- VIQUA PRO10, PRO20 and PRO30 NSF/ANSI 55 Class A Performance Data Sheet (520560-R Rev A) (PDF)
- VIQUA UVMAX Lamp and Quartz Sleeve Replacement Instruction Sheet 602962 Rev W (PDF)
