Reznor RDH Option - Installation - UV Light Installation - PreevA - Manual (Page 4)

Page 4
Operation Ultra-violet lamp should be operated continuously from its power source. Lamp
should not be connected to indoor fan power source or any power source where
lamps would be cycled more than twice a day.
While lit, the bulb color should be light blue. If bulb color changes to red or flickers,
replace the bulb. Bulbs that are not light blue will not emit ultra-violet radiation and
will not kill harmful bacterial or fungi.
Fiberglass filter media is recommended for filters exposed to ultra-violet light. Poly-
ester or cotton filters are subject to ultra-violet degradation and are not recom-
mended.
Maintenance
and Service
Disconnect all power before performing any maintenance or service.
Bulbs need periodic replacement to maintain design specifications. Replace bulbs
after 6000 hours of operation or one year, whichever comes first. For best perfor-
mance, replace bulbs at the beginning of each cooling season.
Output can also be checked with a UVC radiometer. Replace bulb when output
falls to 70% of initial reading.
CAUTION
Use only specified high output, low temperature bulbs with
this fixture. Use of a lower wattage or incorrect bulb can result
in damage to fixture or bulb.
See table below for replacement bulb P/N’s. Other bulbs may plug into the fixture
but they should not be used. Non-approved bulbs will overheat bulb and power
source. Normal operating temperature for the bulb is 80°F; normal operating tem-
perature for the power source is 125°F.
Replacement Parts
Description 75/100 125/150 175/200/225 250/300/350/400
UVC Bulb, Steril-Aire
#GTD VO
220440 220441 (2) 220440 (2) 220442
22” (559mm) 34” (864mm) 22” (559mm) 40” (1016mm)
Light Fixture, 115/208/
230V, Steril-Aire #DE-
220434 220435 (2) 220434 (2) 220436
241VO 361VO 241VO 421VO
Blower Door Interlock Safety Switch - All Sizes, P/N 217262
Troubleshooting
Symptom Recommended Action (in order of priority)
Bulb does not
light.
1. Turn off power. Wait 10 minutes and turn power on.
2. Replace bulb (see P/N’s above). Recommend bulb(s) be replaced at the
beginning of every cooling season.
3. Check line voltage.
4. Check wiring to the bulb.
5. Replace power supply.
Low output radi-
ometer reading or
visibly weak light.
1. Replace bulb (see P/N’s above).
2. Check line voltage.
3. Checking wiring to bulb.
Red/orange light. 1. Check ambient temperature. If the temperature is at or below 35°F, bulb
is too cold to operate properly.
2. If ambient temperature is above 35°F, see “low output” above.
(800) 695-1901, www.ReznorHVAC.com
©2014 Reznor,LLC. All rights reserved.
Trademark Note: Reznor® and PREEVA® are registered in at least the United States.
0514 Form I-PREEVA-UV (Version 0.1)
Check the wiring and the switches or replace the bulb. Retest and check until
light operates properly.
8. Close the doors and turn on power to the unit.
Instructions
(cont’d)
CQS CO NVERGENT
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PROC ES S