GeneralAire GUV161 - Manual (Page 4)

INSTALLATION
• Best results are achieved when the unit is installed where the HVAC
system air temperature is most constant. Therefore, the preferred installa-
tion is on the return side of the furnace. If return side installation is
not possible, install the unit on the supply side, keeping it as far from
the heat/cooling source as possible, and in the main airstream.
• Do not locate the unit within 20” of any plastic material that will be
directly exposed to the UV light, such as a return side humidifier or certain
types of air filters. Check with the filter manufacturer to see if their material
is UV resistant. Over time, UV light will degrade many plastic materials.
• Do not touch the glass portion of the lamp with bare hands because oil s
from the hands can cause “hot spots” which reduce lamp life. Handle either
by the porcelain caps or use a soft cloth. If you accidentally touch a lamp,
wipe it off, using a soft cloth dampened with rubbing alcohol.
1. The ballast is factory set at 120 VAC. For installations that require 240 VAC locate the
120 / 240 volt power selector on the ballast and set for the correct voltage. ( Figure A)
2. For a normal installation, cut out the 7/8” round opening indicated as #1 on the template. (See page insert)
When installing in an area where temperatures will rise above 100º F (such as attic installations), cut out
the large square area indicated with dashed lines and marked as #2. Center the template on the longitudinal
axis of the plenum, using tape to hold in place. Trace hole pattern for unit and mark centers for mounting screws.
3. Drill 9/64” holes for sheet metal screws and cut
opening for the unit.
4. Remove the cover from the unit by removing the
top and bottom retaining nuts using a 11/32 size
nut driver.
5. Attach to air duct using the four sheet metal screws provided.
6. Remove germicidal lamp holder (Figure B)
using a 11/32 size nut driver.
7. Slide germicidal lamp into lamp opening.
8. Reinstall lamp holder.
9. Plug in lamp connector to the end of lamp.
Replace and secure cover using the two retaining nuts.
(Figure B)
Germicidal Lamp
Holder
(Figure A)
10.