9
UV PREVENTIVE MAINTENANCE
These items will need to be performed by a trained and qualified
Certified Service Agency (CSA) on the same schedule as the
exhaust system inspection schedule described in NFPA-96 and
on the previous page in this tech manual. These tasks involve
potential exposure to high doses of UV light and live electrical
components. There is risk of injury to skin and eyes and in the case
of electrical shock, injury or death! For a list of CSAs go to
www.gaylordusa.com and go to "Service Agencies" for a list of
companies nearest you.
1.
Inspection of the Lamps and Ballasts
a.
Check the lamps for proper operation
1.
Turn on the fan and look for the green "UV System
On" light on each hood section
a. If it is not on refer to "UV Troubleshooting",
pages 17, 18 and 20.
2.
Open the UV Access door with the key
3.
Turn on fan
4.
Verify all of the Extractor Inserts are installed.
5.
Depress the UV Access door safety switch
6.
Check all indicator LEDs, 6 green and 3 red, to
ensure that they are all on. If they are not all on go
to "UV Troubleshooting", pages 17, 18 and 20.
2.
Inspect the Plenum (around the UV lamps)
a.
Disconnect the UV module power cord
b.
Remove the nuts holding the UV module to the ventila-
tor with a nut driver
c.
Remove the UV module from the ventilator
d.
Check for build-up of deposits of grease, dust and/or lint.
e.
Clean as necessary with a mild detergent, water and
a rag
f.
Reinstall the UV module.
3.
Test the Safety Interlock switches
a.
Remove one Extractor Insert with the fan on
• The UV lamps should shut off
• An audible alarm on the CUV-100 should come on
• The Red “UV Safety Interlock Activated” light on the
ventilator and CUV-100 control should come on
b.
Open the UV Access door with the fan on
• The UV lamps should shut off
• An audible alarm on the CUV-100 should come on
• The Red “UV Safety Interlock Activated” light on the
ventilator and CUV-100 control should come on
c.
Turn off the breaker to the Exhaust Fan. Press the
“Start Fan” button on the CUV-100 control
• The UV lamps should shut off (stay off)
• An audible alarm on the CUV-100 should come on
• The Red “UV Safety Interlock Activated” light on the
ventilator and CUV-100 control should come on
4.
Check all gaskets for damage
a.
Replace any gaskets that are worn or damaged
5.
Check the Hour Meter
a.
Record the hours
b.
Determine the approximate hours between inspection
intervals.
c.
Determine when the 8000-hour life of the lamps will
occur and inform the operator of the approximate date
when the lamps will need to be replaced
Replacing UV Lamps
Danger!
These items will need to be performed by a trained and qualified
Certified Service Agency (CSA). These tasks involve potential
exposure to high doses of UV light and live electrical compo-
nents. There is a risk of serious injury to skin and eyes from UV
light. There is risk of shock, injury, and/or death from electrical.
For a list of CSA’s go to www.gaylordusa.com and go to the
“Service Agencies” for a list of certified companies nearest you.
1.
Secure all power to the CUV-100 control
2.
Secure all circuits that provide power to the UV lamps
3.
Open the UV Access door with the key
4.
Disconnect the UV module power cord
5.
Remove the nuts holding the UV module to the ventilator
with a nut driver
6.
Remove the UV module from the ventilator
7.
Remove the bolts on each end of the UV module (2 on
each end) that hold the end caps on
8.
Disconnect the lamp connector(s) on the UV lamp(s) to
be replaced
•
Each lamp connector should be labeled from 1 to 6 on
both ends
•
Lamp #1 is at the Front of the ventilator when the UV
module is installed
•
Lamp #6 is at the Back of the ventilator when the UV
module is installed
•
Be sure to re-label the lamp connectors if necessary
9.
Lubricate the lamps around the grommets on each end of the
UV lamp with a small amount of G-510 or similar detergent
10. Slide the UV lamp out one end, CAREFULLY!
11. Inspect the grommets around the lamps
• Replace any grommets that show cracks, checking,
or any other damage
12. Check all wires for damage
• Replace any wires showing damage
13. Lubricate each of the new UV lamp(s) before installing
with a small amount of G-510 or similar detergent
14. Re-connect the lamp connectors on both ends of the UV lamps
• Each lamp connector should be labeled from 1 to 6) on
both ends
• Lamp #1 is at the Front of the ventilator when the UV
module is installed
• Lamp #6 is at the Back of the ventilator when the UV
module is installed
15. Re-install the UV module end caps and torque the bolts
to 7-10 in-lbs.
16. Re-install the UV module in the ventilator
17. Tighten all nuts holding the UV module to the ventilator
18. Re-connect the UV module power cord
19. Check for proper operation of UV lamps
Warning: Do NOT defeat the purpose of the interlocks during cleaning and maintenance!
CERTIFIED SERVICE AGENT MAINTENACE WARNING!
