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CAH-SVX01A-EN 55
Ultraviolet (UV)
Germicidal
Irradiation Lights
The intensity of the ultraviolet
energy emitted from the ultraviolet
bulbs provided in this unit is
dependent on the cleanliness and
age of the bulb. The surface of the
bulb should be kept as clean as
possible for optimum intensity.
Depending on the filtration level of
the HVAC system and the general
hygiene of the building, periodic
cleaning may be necessary. Before
attempting any maintenance
procedures, always follow all
warnings and cautions as detailed in
this maintenance section.
ƽ WARNING
Hazardous Voltage and
Exposure to Ultraviolet
Radiation!
This product contains components
that emit high-intensity ultraviolet
(UV-C) radiation which can be
harmful to unprotected eyes and
skin.
Disconnect all electric power,
including remote disconnects and
discharge all motor start/run
capacitors before servicing. Follow
proper lockout/tagout procedures to
ensure the power cannot be
inadvertently energized. For variable
frequency drives or other energy
storing components provided by
Trane or others, refer to the
appropriate manufacturer’s
literature for allowable waiting
periods for discharge of capacitors.
Verify with an appropriate voltmeter
that all capacitors have discharged.
Failure to disconnect power and
discharge capacitors before
servicing could result in death or
serious injury.
ƽ WARNING
Hazardous Vapors!
If large numbers of UV bulbs are
broken, an appropriate respirator
should be considered to prevent
inhalation of mercury vapors. Failure
to use a respirator could result in
death or serious injury.
ƽ CAUTION
Broken Glass!
Bulbs are fragile and can be easily
broken. Always use gloves and eye
protection when handling these
bulbs. Failure to handle bulbs
properly may result in minor to
moderate injury. Refer to the MSDS
sheet from the bulb manufacturer
for additional safety information.
Always use cloth gloves and
suitable eye protection when
cleaning or replacing these bulbs.
Bulbs may break if dropped or
handled improperly.
Disposal of Bulbs: UV bulbs, like
fluorescent bulbs, contain mercury,
which is a regulated hazardous
waste. The disposal requirements
for hazardous wastes are
determined by local, state and
federal guidelines. Check all
regulations before disposing of
bulbs to assure you have met all
requirements.
Refer to the MSDS sheet from the
bulb manufacturer for additional
disposal, handling and safety
information.
To clean the bulbs:
1 Disconnect all electrical power to
the unit and the ultraviolet bulbs.
2 Wearing soft cloth gloves and
safety glasses, use two hands
and firmly grasp the bulb at each
end.
3 Rotate the bulb 90 degrees in
either direction and move bulb
away from the fixture and out of
unit.
4 Wipe down each bulb with a
clean cloth and alcohol. Avoid
touching the bulb with bare
hands as skin oils can accelerate
future glass soiling and degrade
the bulb performance.
5 Carefully return the bulb to the
fixture and rotate it 90 degrees in
either direction until it is firmly
secured.
6 Close and latch all unit panels
and reenergize power to the
lights.
Replacement of ultraviolet bulbs
The ultraviolet bulb should be
replaced annually if operated
continuously or after 9,000 hours of
use if operated intermittently.
Replacement bulbs must be the
specific size and wattage as
originally supplied from the factory.
Note: Although the lights may
continue to generate a characteristic
blue glow beyond 9,000 operating
hours, the ultraviolet radiation
emitted by the bulbs degrades over
time and will no longer provide the
intended benefit.
1 Disconnect power to the HVAC
unit and the ultraviolet bulbs.
2 Wearing soft cloth gloves and
safety glasses, use two hands to
firmly grasp bulb at each end.
3 Rotate bulb 90 degrees in either
direction and move bulb away
from the fixture and out of unit.
4 Carefully install a new
replacement bulb in the fixture
and rotate it 90 degrees in either
direction until firmly secured.
5 If broken bulbs are found or if
you are required to dispose of
used bulbs, the proper warning
and cautions must be followed.
6 After replacing bulbs, close and
latch all unit panels and
reenergize power to the lights.