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SECTION 8: MAINTENANCE
Routine Inspection
The following are required routine maintenance
actions:
A. Daily inspection of the Bioshield® Commercial UV
Sterilizer's Power Supply Enclosure control panel
to confirm that the unit is operating satisfactorily
(lamp operation).
B. Daily visual inspection of the UV vessel and piping
for leaks.
C. Monthly inspection for damage/corrosion.
D. Annual vessel interior inspection/cleaning.
E. Biannual quartz sleeve inspection/cleaning.
F. Replace the UV Lamp & Retaining Nut Gasket after
12,000 hours of cumulative operation.
G. Clean or replace the Cooling Fan Filter Mat monthly,
or more frequently in dusty environments.
H. When the lamps are replaced, calibrate the UV
Intensity Sensor.
UV Lamp Replacement
Lamp Removal
Purpose
To replace expired UV lamp(s)
Frequency
A complete set of UV lamps must be replaced after
12,000 hours of cumulative use (manufacturer's
suggested useful lamp life rating) or when the UV
Intensity is lower than the PLC threshold value.
Parts and Equipment Required
• UV Lamp(s)
• Adjustable Wrench
• Wire Cutters
• Clean Cotton or Silicon Gloves
• Personal Safety Equipment
General risk due to pressurized piping and UV
vessel!
General risk due to electricity!
DO NOT operate UV Lamp(s) outside of the
vessel. UV light may cause severe irritation/damage
to eyes and skin.
UV lamp(s) become hot during operation.
Handle with care.
UV Lamps are fragile and potentially dangerous
if broken. Handle with care.
Procedure
Read and understand this chapter prior to performing
lamp change-out
NOTE: Use clean cotton or silicon gloves when
handling the UV lamp(s). Skin oils absorb
ultraviolet light and reduce UV intensity. Skin
oils may also lead to premature lamp failure.
1. Turn off the Power Supply Enclosure with the
External ON/OFF Switch and unplug the UV system
from the electrical outlet.
2. With an adjustable wrench loosen (not remove)
the Lamp Cable Adapter Nut that will allow the
complete Water Tight Connector fitting to be
unthreaded from the Quartz Sleeve Retaining Nut
without twisting the lamp cable.
BIOSHIELD
Commercial UV Sterilizer Installation and User's Guide
®
23
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