Page 2
IM-790
Table of Contents
Introduction........................................................................................................................................................................................... 2
Description .................................................................................................................................................................................... 2
Operation....................................................................................................................................................................................... 3
Maintenance.......................................................................................................................................................................................... 4
Bulb Replacement......................................................................................................................................................................... 4
Typical Parts List .................................................................................................................................................................................. 4
Introduction
This manual provides general information about the Ultravi-
olet Light option for
Daikin
RoofPak
®
applied rooftop
models RPS/RDT/RFS/RPE/RDE/RDS and RAH. In addi-
tion to an overall description of the unit, it includes removal
and installation procedures, maintenance instructions and
parts identification.
Hazard Identification Information
Description
Ultraviolet C light bathes the moist surfaces on the coil and
drain pan, killing most microorganisms that can grow there.
Ultraviolet lights are typically installed on the leaving side of
the cooling coils in the unit. Each light module is mounted on a
rail and is removable for convenient bulb replacement.
UV Light Power Disconnect switches (two per door) are fac-
tory installed on every door that allows a direct line of sight to
the UV lamps when opened. These switches are designed to
prevent UV exposure when cabinet doors are opened and must
not be disabled.
A viewing window near the UV lights allows viewing to deter-
mine if the lights are energized. The viewing windows use spe-
cially designed glass that blocks harmful UV light.
Figure 1. Typical Ultraviolet Light Installation
WARNING
Warnings indicate hazardous situations which, if not
avoided, can result in severe personal injury or property
damage.
C
CAUTION
Cautions indicate hazardous situations which, if not
avoided, can result in personal injury or equipment
damage.
WARNING
UVC exposure is harmful to the skin and eyes.
Looking at an illuminated bulb can cause
permanent blindness. Skin exposure can cause
Cancer.
Always disconnect power to unit before servicing. Do
not operate if disconnect switch has been disabled.
Ultraviolet
Light
Units
Light Power
Disconnect
Switch
Light Power
Disconnect
Switch
View
Window
Cooling
Coil
AIRFLOW
