An HVAC UV light for coil treatment should be mounted inside the supply plenum with a clear line of sight so the lamp shines directly on the evaporator coil and the drain pan. This placement targets the damp coil surface where microbial growth often starts and helps keep the coil clean between maintenance visits. For homes we service, we install in-duct UV lamps as part of indoor air quality solutions across the Denver area.
For best results and safe upkeep:
- Position the lamp so sheet metal or wiring does not block the beam to the coil face.
- Install near an access panel to allow simple bulb replacement and cleaning.
- Orient the lamp to cover the full coil surface and the pan where water collects.
- Use UV-resistant gaskets and protect nearby plastic wiring from direct exposure.
Always shut off HVAC power and avoid looking at an energized UV lamp without proper eye and skin protection.
Updated: 2026-09-07
Need help in Denver, CO? Call (720) 994-7055 or book online.