11
If the power to the solenoid valve coil is correct, the
following symptoms indicate that the spray nozzle
requires cleaning:
• Larger spray pattern
• Non symmetrical spray pattern
• Constant water stream
• Not spraying water
To Clean the Spray Nozzle
1. Turn the power to the furnace OFF.
2. Turn the humidistat to the OFF position.
3. Turn off the water supply at the saddle valve.
4. Disconnect the power and water lines from the
humidifier.
5. Remove the humidifier from the duct.
6. Remove the drip sleeve from the spray nozzle.
7. Hold the nozzle adapter with a 3/4” wrench and
using a 5/8” wrench, turn the spray nozzle counter
clockwise and remove the components.
8. Remove the screen from the nozzle by turning it
counter clockwise.
9. Holding the spray nozzle with the 5/8” wrench,
insert a 5/32” allen wrench into the set screw and
turn it counter clockwise and remove the
components.
10. Rinse and clean all parts. Suggested cleaners
include 50/50 solution of white vinegar and water
or liquid humidifier cleaner.
11. Using a razor blade, carefully clean the (4) slots on
the director (see diagram below). The director is
the part that provides a fine spray pattern.
12. Reassemble the nozzle assembly, paying careful
attention to the diagram below for the correct
replacement of parts.
13. After completing the assembly, operate the unit to
be sure it is functioning properly.
Maintenance
NOTE:
Be careful not to over
tighten the nozzle
assembly. It should be a
snug fit.
NOTE:
Assemble the nozzle to
the adapter so that it
will not leak.
NOTE:
It is recommended that
the nozzle be replaced
on an annual basis to
avoid mineral build up
and possible clogging.
Nozzle
Adapter
(Brass)
Screen Retainer
(Brass)
Screen
(Stainless)
Set Screw
(Stainless)
Sleeve
(Stainless)
Director
(Stainless)
O-Ring
(Rubber)
Nozzle Head
(Stainless)
