Field Controls UV-AIRE UV-12FM Operation Manual page 4

7. If desired, loosen the wing nut on the bottom of the Mounting Bracket Assembly (see Dimensional
Drawing), and swivel/extend the lamp bracket to position the lamp in the desired position, and retighten
the wing nut securely.
CAUTION: MAKE CERTAIN THAT POWER HAS BEEN DISCONNECTED TO THE HVAC SYSTEM, AND THE 24
VAC TRANSFORMER POWER SOURCE, BEFORE PROCEEDING WITH THE INSTALLATION!
8. Mount the installer-supplied 24VAC transformer (not included) in an area protected from the lamp,
using the included sheet metal screws or other appropriate fasteners, and connect to 120V power source.
Observe all local and national electrical and mechanical code requirements regarding 120 V wiring
NOTE: It is recommended that the 24V ballast power source be wired through a safety disconnect switch,
such as a door switch, that will disconnect power to the transformer if the access panel to the UVC lamp
installation area is removed (see Wiring Diagram). If such a switch is not present on the equipment, it is
recommended that a door interlock switch (not included, min. 3A 24VAC rating) be installed and wired into
the 24VAC ballast power circuit (see Wiring Diagram).
9. Mount the ballast using the included sheet metal screws or other appropriate fasteners, in a location close
enough to connect the 24VAC ballast power wires to the 24VAC transformer (not included), and to connect
the ballast lamp cable to the lamp. If the ballast is not in a location protected from UVC exposure, protect
the ballast with the included shield, or by fabricating and installing a sheet metal shield or equivalent. DO
NOT wrap the ballast in tape or cover the ballast with anything that would insulate or reduce the ability of
the ballast to dissipate heat.
10. Route the ballast lamp cable to the lamp, providing suffi cient support to prevent entanglement with other
components (such as a blower wheel or removable panel fasteners), and reduce stress on the Mounting
Bracket Assembly.
11. Attach the ballast cable connector to the lamp base, ensuring correct alignment of the rectangular pin
arrangement. The connector may be connected in either of two positions for which the pins line up. Ensure
that the lamp connector is fi rmly attached and that the sealing boot is pushed fully onto the lamp base.
12. Connect the ballast 24 VAC wires to the 24 VAC transformer secondary (output) terminals (see Wiring
Diagram), or the alternate installer-supplied door interlock switch if used. Secure the
wires to prevent entanglement with other components (such as a blower wheel or
removable panel fasteners).
13. Apply the Safety label to an area of the access panel or other area of the
equipment or duct such that the warning information is clearly visible (see Figure 8),
and through which the lamp may be seen. Clean the surface of dirt, oil, and other
contaminants before applying the label.
14. Drill a 3/8" hole through the center of the Safety Label, where indicated by the
dashed circle (see fi gure 7).
15. Snap the clear plastic Safety Viewport into the hole (see Figure 8). The lamp
may be safely viewed through the viewport while it is lit.
WARNING: never expose eyes or skin to UVC light from any source. Looking directly at the UVC light may cause permanent eye damage or
blindness. Never operate the UV-Aire™ AirPurifying System out of the plenum. Avoid touching the glass portion of the lamp with your hands.
P/N 78010015000 RevB 02/18
Page 4 of 8
Figure 3