17
TROUBLESHOOTING UV SYSTEM
SYMPTOM
POSSIBLE PROBLEM
CORRECTIVE ACTION
1.
After CUV-100 is turned on, fan starts:
• Yellow “UV Lamp Failure” light is on
• Audible alarm is on
A.
No power to the ventilator section(s).
1.
Check for 120v between L1 & L2 at
ventilator. If there is no power at L1
& L2 coming to this ventilator section
identify the circuit breaker, correct and
re-check.
B. Loose wire between CUV-100 and
ventilator.
1.
Check for 120v between 6U & 5U in
the ventilator. If none, check CR13 in
the CUV-100 for power and operation.
If there is power there, check for 120v
between 1U & 5U. If there is power,
check the green lamps for proper
operation.
C. No start signal from CUV-100 to
ventilator section(s).
1.
Check fuse F7 in CUV-100.
D. Fuse is blown on UV Module
Controller in ventilator.
1.
Check fuse F2 on the UV Module
Controller.
E.
Fuse is blown on UV Hood Wiring
Board.
1.
If there is power at L1 & L2, check for
power to 5A & 6A on UV Hood Wiring
Board.
F. Green “UV System On” light has
failed.
1.
Check for power to the Green “UV
System On” light
• If no power, check the circuit and
located problem.
• If there is power, the Green “UV
System On” light has failed and
needs to be replaced.
2.
• Yellow “UV Lamp Failure” light is on
• Green “UV System On” light is on
• Audible Alarm is on
A.
UV Lamp or UV Ballast has failed.
1.
Identify ventilator section with Yellow
“UV Lamp Failure” light on.
2. With fan running, open UV Access
Door.
3. Depress the UV Access Door switch
and identify which Lamp / Ballast’s
green light is not on.
4.
Switch the pin connector on that
Ballast with another Ballast and check
again
• If the alternate Ballast’s green light
comes on, replace the Ballast
• If the alternate Ballast’s green light
does not come on, replace the
Lamp
B. The contacts on the UV Module
Controller have closed permanently.
Failed relay chip.
1.
Check for continuity between 2A &
3A in ventilator. If there is continuity
AND all of the UV lamps are working,
(6) green and (3) red lights lit on the
UV Module Controller, the UV Module
Controller needs to be replaced.
C. Relay CR12 in CUV-100 has failed.
1.
Check CR12 for proper operation,
replace if necessary.
3.
• Yellow “UV Lamp Failure” light is on
ONLY at CUV-100 control NOT on
any of the ventilator sections.
• Green “UV System On” light is on
• Audible alarm is on.
A.
Yellow “UV Lamp Failure” light on
ventilator has failed.
1.
Check the Yellow “UV Lamp Failure”
light and see if it is receiving power.
• If no, the problem is in the wiring.
Locate and correct the problem.
• If yes, replace the lamp.
Danger!
These items will need to be performed by a trained, qualified and
Certified Service Agency (CSA). These tasks involve potential
exposure to UV light and live electrical components. There is a risk
of injury to skin and eyes and in the case of electrical shock, injury
or death! For a list of CSA’s go to http://www.gaylordventilation.com
and go to Service for a list of companies nearest you.
Summary of Contents for XG-BDL
Page 13: ...10 GFBD EXTERNAL WIRING MULTIPLE SECTION FIGURE 16B GFBD External Wiring Diagram ...
Page 29: ...26 UV HOOD WIRING BOARD SCHEMATIC ...
Page 30: ...27 WIRING DIAGRAM FOR MODEL CUV 100 WITH XG UV SERIES HOODS ...
Page 31: ...28 WIRING DIAGRAM FOR GAD 100 CONTROLLERS WITH GFBD DAMPERS ...
Page 32: ...29 WIRING DIAGRAM FOR GAD 100 CONTROLLERS WITH NO DAMPER ...
