Luminor LB4-031 Blackcomb 4.1 UV Water Treatment System 3 GPM

The Luminor LB4-031 BLACKCOMB 4.1 is a compact UV water disinfection system rated at 3 GPM (11.4 L/min) at a UV dose of 30 mJ/cm² and 95% UV transmittance. It uses a 15-watt UV lamp in a polished 304 stainless steel chamber (2.5 x 14.3 inches) with 1/2-inch MNPT connections, which suits single-faucet, cottage and other low-flow applications. The BLACKCOMB 4.1 controller shows lamp status with a tri-colour LED and remaining lamp life on a 4-digit display, with audible and visual alarms.

Flow rate by UV dose

• 3 GPM at 30 mJ/cm² (Luminor rating, 95% UVT)
• 6 GPM at 16 mJ/cm²
• 2.4 GPM at 40 mJ/cm²

How it alerts you

The LED is green when the lamp is on and within its rated life, turns yellow 30 days before the lamp expires (with a chirp in the last 7 days), and turns red with a buzzer when the lamp fails or expires. The controller reports lamp status; it does not by itself confirm the water is safe to drink, so Luminor recommends testing your water for microbiological contaminants regularly.

Water quality requirements

• Luminor strongly recommends a 5-micron sediment prefilter before the UV system
• Hardness under 7 gpg (soften above this); pH 6.5-8.5
• Iron under 0.3 ppm, manganese under 0.05 ppm, tannins under 0.1 ppm, turbidity under 1 NTU
• UV transmittance above 85% (contact Luminor below 80% for pretreatment advice)

Specifications

• Model: LB4-031 (BLACKCOMB 4.1)
• Flow: 3 GPM at 30 mJ/cm², 95% UVT
• Connections: 1/2-inch MNPT
• Lamp: 15 W, RL-290; power draw 20 W
• Electrical: 90-265V, 50/60 Hz; North American NEMA 5-15 plug ("1" suffix)
• Chamber: polished 304 stainless steel, 2.5 x 14.3 inches
• Operating pressure: 10-150 psi; water temperature: 36-149°F (2-65°C)
• UPC: 880027000050

Maintenance and replacement parts

• UV lamp: RL-290. Replace every 12 months (standard lamps are rated about 9,000 hours).
• Quartz sleeve: RQ-290. Clean every 6-12 months and replace every 24 months, or sooner if scaled, cloudy or damaged.
• Lamp and sleeve kit: RLQ-290
• Optional temperature relief valve: 130031 (1/2-inch)

BLACKCOMB 4.1 systems do not support a UV sensor or add-on modules; choose a BLACKCOMB 5.1 or 6.1 if you need UV monitoring.

Warranty Luminor limited warranty: 10 years on the stainless steel reactor, 3 years on the controller, and 1 year on UV lamps, UV sensors and quartz sleeves.