AAON RZ Series, Installation Operation & Maintenance

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UV Lights
Some units include UV lights for airstream
disinfection. The UV fixture is installed
directly downstream of cooling coil. Door
interlock switches are provided with this
option. UV lamps ship loose in the vestibule
and require installation during startup.
Useful lamp life shall be 9000 hours
(minimum) with no more than a 15% output
loss at the end of the lamps life.
Table 27 - Air Disinfection UV Information
RZ Cabinet
Size
Cooling
Coil
Size
Model
Option A3
CFM
Max
Lamp
Watt/SqFt
Coil
Residence
Time
(Seconds)
Dose
µJ/cm2*
Estimated
Inactivation
Rate
(Coronavirus)
A, B & C
(45-140 tons)
S
ta
n
d
a
rd
A,B,E,F,G
27,300 15.47 0.474 1,037 98.00%
D
(145-180 tons)
46,200 18.73 0.600 1,419 99.50%
E
(200-240 tons)
60,800 14.23 0.794 1,320 99.30%
A, B & C
(90-140 tons)
L
a
rg
e
C,D,H,J,K
37,500 38.67 0.394 1,348 99.40%
D
(145-180 tons)
53,500 16.18 0.659 1,292 99.20%
E
(200-240 tons)
72,900 13.84 0.900 1,377 99.40%
* All dosage and estimated inactivation rates are at bulb end of life, have a wind chill degradation
for 55 degrees factored in, and factor in velocity on the coil. Warmer temperatures or lower
airflows will increase the UV effectiveness.
Filter Replacement
Monthly air filter inspection is required to
maintain optimum unit efficiency.
Replace filter media monthly. Filters are
located upstream of the evaporator coil in the
filter and economizer section. Open access
door and pull filters straight out to inspect all
of the filters. Replace filters with the size
indicated on each filter or as shown in
Table
28
.
Electric shock hazard. Shut off all
electrical power to the unit to avoid
shock hazard or injury from rotating
parts.
WARNING
UV LIGHTS
Never expose eyes or skin to UVC
light from any source, as personal
injury may result. Wear gloves, face
shield/glasses (per ANSI Z87.1) and
cover all exposed skin.
WARNING