MAINTENANCE
This maintenance schedule is only a guideline, determined by average conditions. Actual conditions will dictate
the frequency of cleaning and/or replacement of lamps. Do not touch the glass portion of the lamp with bare
hands because oils from the hands can cause “hot spots” which reduce lamp life. Handle either by the plastic
end cap or use a soft cloth. Clean the lamp using a soft cloth dampened with rubbing alcohol.
CLEANING THE LAMP -
Recommended interval: 12 months
1. Unplug the power cord from the outlet, or disconnect power to the unit.
2. Remove the cover from the unit by removing the top and bottom retaining screws using a screwdriver.
3. Unplug the lamp connector from the end of the lamp.
4. Remove lamp holder using a 11/32 size nut driver.
(Figure B)
5. Remove the lamp by grasping the plastic end cap and extract carefully.
6. Using a soft cloth moistened with rubbing alcohol, wipe down the lamp. If there is a large build-up of
dust particles, you may wish to use a can of air first. Always handle lamp by the end caps.
7. Slide the lamp back into lamp opening by grasping the plastic end cap and reinstall lamp holder.
8. Plug the lamp into the lamp connector.
9. Replace and secure the cover using the two retaining nuts.
10. Plug power cord back into outlet, or restore power to unit.
REPLACING THE LAMP -
Recommended interval: 24 months
Replacement lamps are available through your HVAC contractor.
Follow above procedure excluding #6.
(Please note standard off-the-shelf lamps are not compatible with this unit. Use of improper lamps will void warranty.)
(Figure 3)
Germicidal Lamp Holder
INSTALLATION
• Best results are achieved when the unit is installed where the HVAC system air temperature is most
constant. Therefore, the preferred installation 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 wiring, 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 may degrade plastic materials.
• Do not touch the glass portion of the lamp with bare hands because oils 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 model 407H-16 or the 407H-16-O3 Series2 Germicidal UV Lamp is standard on some models
or available separately.
2. Remove the cover from the unit by removing the top and bottom retaining screws using a screwdriver.
3. Remove the knock-outs on the RS4 cabinet door for UV lamp and safety switch. (fig 1
on back page
)
4. Attach back of the UV unit to the cabinet door using the four #8-32 x 3/8” screws provided.
5. Attach #8-32 x 3/4” safety switch screw to cabinet frame (fig 2) to activate safety switch.
6. Attach lamp reflector to back of 407 unit using the four nuts provided.
7. Remove germicidal lamp holder using a 11/32 size nut driver (fig 3).
8. Slide germicidal lamp into lamp opening and reinstall lamp holder.
9. Plug lamp into lamp connector.
10. Connect power in accordance with local wiring codes. The multivoltage ballast is self-adjusting and
operates with voltages from 120 - 240 VAC. Use the provided 120 VAC power cord. For 240 VAC,
install 5 amp inline fuses and use the optional 240 VAC power cord, Part #PC-240.
IMPORTANT: WHEN USING THE 407H-16-O3 LAMP WITH ACTIVATED OXYGEN,
POWER TO THE LAMP MUST BE INTERLOCKED WITH THE FURNACE BLOWER.
11. For 407H-16-O3 ONLY – Plug the 120 VAC power cord into an outlet which is interlocked
with the furnace blower. If an EAC terminal is available, supply power to the outlet from the
EAC terminal. If there is no EAC terminal, interlock the UV unit with the furnace blower
using an appropriate alternate. Verify voltage is operating between 120 - 240 VAC when the
air handler is operating.
12. Replace and secure cover using the two retaining nuts. Affix caution labels if necessary.
WIRING
The multivoltage ballast is self-adjusting and operates with voltages from 120 - 240 VAC. Install provided
120 VAC power cord and plug the unit into a 120 VAC outlet which is interlocked with the furnace blower.
If an EAC terminal is available, supply power to the outlet from the EAC terminal. Connect in accordance
with local wiring codes. If there is no EAC terminal, interlock the UV unit with the furnace blower using an
appropriate alternate. After installing verify voltage is operating between 120 - 240 VAC with air handler
operating. For 240VAC wiring install 5 amp inline fuses and use optional 240 VAC power cord,
Part #PC-240.
