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I. SAFETY INSTRUCTIONS
WARNING
Ultraviolet light is harmful to eyes
and skin. Never look at light produced
by this lamp. Shut off power to lamp
before servicing.
Electrical shock from 120 - 277 VAC
may cause serious injury. Shut off
power before starting installation and do
not turn power back on until complete.
Sharp edges may cause personal
injury. Use care when cutting and
handling sheet metal.
Lamp may cause personal injury in
the form of burns or cuts. Wear
protective gloves and safety glasses
when handling lamp. To prevent burns,
shut off power to lamp and allow to cool
for several minutes before servicing. If
lamp is broken, refer to lamp disposal
section of this manual.
CAUTION
UV light can cause color changes or structural degradation of
plastics, rubber, paper, and other non-metallic materials used in
the HVAC system.
• Install lamp in location that prevents exposure of plastics, rubber,
paper, and other non-metallic materials to UV light, or shield such
materials with aluminum tape, sheet metal, or metal conduit.
• Shield electrical wires that receive direct or reflected UV radiation
with aluminum tape, sheet metal, or conduit.
• Install lamp at least 8 inches away from equipment or components
made with UV resistant plastic. If equipment or components are not
made with UV resistant plastic – or if the UV resistance of the
material is unknown – shield with aluminum tape or sheet metal.
Water may damage lamp.
• Install lamp at least 3 inches away from evaporator coil.
• Do not install lamp below a humidifier or any source of water.
© Research Products Corp.
Please read the safety and installation instructions carefully to help ensure a correct and SAFE installation of the
Aprilaire Ultraviolet Germicidal Lamp.
TABLE OF CONTENTS
I. Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
II. Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
III. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Installation of External Mount Rooftop Units
(Models 1952 & 1953) . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Installation of Internal Mount Rooftop Units
(Model 1972) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
IV. Annual Lamp Replacement . . . . . . . . . . . . . . . . . . . . .10
V. Lamp Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
VI. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
VII. Lamp Replacement Record . . . . . . . . . . . . . . . . . . . .11
VIII. Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . .12