UV100E ULTRAVIOLET SYSTEMS
7
68-0262—5
16.
For air treatment systems, wait ten minutes for the
airflow sensor to calibrate. During this time, the furnace
fan must remain off.
NOTE: Failure to wait ten minutes for the airflow sensor to
calibrate before powering the furnace causes the
airflow sensor to incorrectly calibrate and the device
to incorrectly function. If this occurs, remove power to
the furnace or turn off the system and fan, wait ten
minutes, and then resume normal furnace operation.
17.
Reconnect the power to the HVAC system.
18.
Choose a location on the adjacent HVAC equipment for
the HVAC maintenance UV warning label included in the
UV system packing box. Choose a location that a future
installer can easily see during any future HVAC
maintenance or repair.
19.
Adhere the HVAC maintenance UV warning label to the
HVAC equipment (selected in step 17) such as the
furnace, air cleaner or humidifier. See Fig. 8.
Fig. 8. HVAC maintenance UV safety label.
CHECKOUT
The installer should verify that the ultraviolet bulb(s) are
operating
only
by viewing the lamp light indicator
on the lamp
handle.
Do not attempt to look directly into the duct to see the
illuminated ultraviolet bulbs.
See Fig. 9.
Fig. 9. Lamp light indicator, LED and reset button.
The installer should orient the homeowner to the unit by
showing them the blue glow of the lamp light indicator and
discussing how to determine when the unit is functioning
properly without looking directly into the duct to see the
illuminated ultraviolet lamp. The installer should also
emphasize the hot surface and electrical shock safety
warnings.
The installer should show the homeowner the LED on the front
of the UV system and explain operation as follows:
a
Bulb life means emitting adequate amount of UV-C energy to
maintain an effective kill rate. At 0% bulb life remaining, the
lamp continues to operate until catastrophic bulb failure (bulb
burns out) but the kill rate becomes rapidly negligible.
Installer should also orient the homeowner to the reset button
on the bottom of the UV system that, when pressed briefly for
one second, can be used to command lamp on for the
minimum run time of 40 minutes (air treatment system) or three
hours (surface treatment system), depending on system type.
And that when a new bulb is installed, the homeowner must
hold the reset button for five seconds to reset the internal
timers. Cycling power does not reset internal timers.
When using Enviracom communication bus to communicate
with other appliances, the installer should orient the home-
owner to the Enviracom LED and three screw terminals. The
Enviracom LED flashes when transmitting and lights solidly
when there is a fault.
The installer should also explain the extended-bulb life for the
surface treatment system. For the single-lamp and dual-lamp
air treatment systems, the installer should orient the home-
owner to the alternate method of using the UV system to
monitor the thermostat load information to turn lamp off and on
instead of using the air flow sensor to control lamp operation
and that it communicates the percent remaining bulb life.
The installer should leave the Owner’s Guide with the
homeowner and review the bulb cleaning and replacement
procedures. A Bulb Cleaning Reminder Schedule is included in
the Owner’s Guide to help the homeowner set up and track a
regular cleaning schedule.
M22868
M22855
LAMP LIGHT
INDICATOR
LED CHANGE
INDICATOR
RESET
BUTTON
LED Status
Indicates
Homeowner Action
Off
100 to 11% bulb life
a
remaining
Nothing
Flashing
10 to 1% bulb life
a
remaining
Purchases bulb(s)
Solid
0% bulb life
a
remaining Replaces bulb(s)
