Diversitech TUV-BTER — Fresh-Aire UV Blue-Tube Germicidal UV Light, 18–32 VAC, 1-Year Lamp

TUV-BTER UV light — Diversitech Fresh-Aire UV Blue-Tube, 18–32 VAC

The TUV-BTER UV light is the Diversitech Fresh-Aire UV Blue-Tube germicidal UV system with a 1-year lamp. It runs on 18–32 VAC low-voltage control power, so it wires to the 24V transformer already in most air handlers and furnaces. The 254 nm UV-C lamp shines on the evaporator coil and drain pan. As a result, it helps keep mold and biofilm off the coil and treats the air that passes through the system.

TUV-BTER UV light specifications

• Brand: Diversitech (Fresh-Aire UV Blue-Tube UV line)
• Model / part number: TUV-BTER
• UPC: 895170001007
• Lamp: 254 nm germicidal UV-C, quartz hot filament, 1-year lamp
• Lamp size: 15 in. long x 0.74 in. diameter
• Electrical: 18–32 VAC, 60 Hz, 0.68 A, 16 VA
• Power supply (TUVP-ER): 4.1 in. W x 1.7 in. H x 1.8 in. D
• Replacement lamp: TUVL-115P (1-year)
• Warranty: lifetime on all parts except the lamp

What comes in the TUV-BTER kit

• (1) TUVP-ER power supply
• (1) TUVL-115P UV-C lamp
• 6 ft. lamp cable
• Magnetic “Z” bracket and mounting hardware
• Panel indicator and installation sticker

Why add a Blue-Tube UV light to an HVAC system

A wet cooling coil is a natural place for mold to grow. Over time, that growth restricts airflow, lowers efficiency and can cause musty odors. A coil-mounted UV-C lamp works around the clock to keep the coil and drain pan cleaner. In addition, it treats airborne germs as air moves through the cabinet. Fresh-Aire UV describes the Blue-Tube as ozone-free and virtually maintenance-free, apart from replacing the lamp.

The 18–32 VAC version suits most residential and light-commercial split systems, air handlers and furnaces with 24V controls. For equipment without low-voltage power, Fresh-Aire UV also makes a 110–277 VAC Blue-Tube model.

Shop related parts: HVAC accessories, thermostats, transformers and blower motors.

How to install the TUV-BTER UV light

1. Turn off and lock out power to the air handler or furnace.
2. Pick a spot where the lamp can see the coil, usually above or below it in the supply plenum or coil cabinet.
3. Cut the lamp opening, then attach the magnetic Z-bracket and mount the lamp.
4. Mount the power supply and connect it to 18–32 VAC control power, following the installation guide.
5. Connect the 6 ft. lamp cable, add the panel indicator and sticker, then restore power and confirm the lamp lights.

Full instructions and literature are on the Fresh-Aire UV Blue-Tube page. A licensed HVAC technician should install this UV light. Never look directly at a lit UV-C lamp.

Frequently asked questions

What is the Diversitech TUV-BTER?

It is the Fresh-Aire UV Blue-Tube germicidal UV light kit for HVAC systems. It includes an 18–32 VAC power supply and a 1-year UV-C lamp.

What voltage does the TUV-BTER UV light need?

It runs on 18–32 VAC at 60 Hz and draws 0.68 A (16 VA). That matches the 24V control power in most HVAC equipment.

How often do I replace the lamp?

Replace the lamp once a year. The replacement lamp is part number TUVL-115P.

What is the difference between TUV-BTER and TUV-BTER2?

Both are 18–32 VAC Blue-Tube kits. The TUV-BTER comes with a 1-year lamp, while the TUV-BTER2 comes with a 2-year lamp.

Does the Blue-Tube UV light produce ozone?

No. Fresh-Aire UV states that the Blue-Tube operates ozone-free.

When will my TUV-BTER order ship?

Orders are prepared and shipped within 5–7 business days.

Why buy the TUV-BTER from Cedars HVAC

• Genuine new Diversitech Fresh-Aire UV product, sold by part number
• Competitive pricing on HVAC indoor air quality parts
• Orders are prepared and shipped within 5–7 business days
• Real HVAC expertise. Call (305) 850-6693 to confirm fit before you order.