Service indicator light, Application with a humidifier, Air conditioning – Ultravation Straight Through - DC-IH-0205 User Manual
Page 8: Transitions

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Note: A flashing red every second and a beep every
second does not necessarily mean the lamps are
defective or no longer emitting UV, it is sensing the
lamp(s) in the unit are not on. This could be caused by
other factors.
In this case a service technician should be contacted.
Please contact your local dealer or HVAC contractor for
replacement lamps. There are NO user serviceable
replacement parts other than the lamp.
Refer servicing to qualified service personnel.
Service Indicator Light:
The Photronic Series incorporates an audible and
visual annual service reminder indicator. A lamp status
monitor on the cover provides a visual LED signal
(solid GREEN) when the unit is operating correctly.
Other situations are covered on the chart on page 7.
(See UV lamp monitor chart- see page 7)
To set the service indicator Light: It is
recommended that a certified technician perform
this operation.
1. To set or reset the annual service indicator the unit
must have power to it.
2. Remove the cover from the unit.
3. Press down and hold the square yellow RESET
button (hold down for 10 sec.) on circuit board (located
adjacent to the LED on the circuit board), the LED
should turn GREEN while the button is depressed.
4. Release the square yellow RESET button.
5. Replace the cover, and inspect operation. LED
should be Green.
UV Lamp replacement:
NOTE: When replacing lamps after 1 year or 2 years of
operation disconnect power to the unit first.
After the lamps are in place, complete steps 1-5 to set
the service indicator to 0.
For optimum 24/7 air stream disinfection it is
recommend the UV-C lamp is replaced on an
annual basis.
Application with a Humidifier:
The Media Air Cleaner is compatible with humidifiers.
Avoid applications where water mist will reach the filter
media.
When an evaporative type humidifier is used, it may be
installed between the furnace warm air duct and the return
air duct without affecting the air cleaner.
Atomizing and spray type humidifiers should be installed
with at least 6 feet between the Air cleaner and humidifier.
Air Conditioning:
The air cleaner should be installed upstream of the cooling
coil. This will keep the coil clean and reduce air
conditioning coil maintenance. Improved cooling efficiency
is the result, which directly affects energy costs. A clean
coil will reduce utility costs.
Failure to replace media can cause damage to the cooling
system.
Transitions:
If the air duct does not fit the air cleaner cabinet opening,
gradual transitions are recommended to reduce air
turbulence through the air cleaner and maximize
efficiency. Not more than 20 degrees (about 4” per running
foot) of expansion should be used on each side of the
transition fitting.
T R A N S IT I
R E T U R N
A IR
D U C T
2 0 D E G R E E E X P A N I O N P E R S I D E P E R F IT T I N G
( 4 I N . P E R R U N N I N G F O O T )
M E D IA A I R C L E A N E R
2 0 °