INSTALLATION INSTRUCTIONS for the Programmable

INSTALLATION INSTRUCTIONS for the Programmable
INSTALLATION INSTRUCTIONS
for the Programmable
Humidifier Automatic Flushing Timer
SAVE THESE INSTRUCTIONS
The Humidifier Automatic Flushing Timer auto­
matically flushes accumulated mineral deposits from all
central-system steam- and reservoir-type humidifiers.
This enables homeowners to enjoy the benefits of
healthful humidified air without the hassles of frequent
maintenance due to mineral buildup.
The flushing timer is set at the factory to flush the
humidifier every two hours for a duration of 10 seconds,
using only about 1.5 gallons of water per day. (See
“Reprogramming Instructions”, lower right, for
alternate settings.) This flushing reduces or eliminates
servicing during the humidification season, depending
on the mineral content of the water.
To Install the Flushing Timer on
Steam Humidifiers:
CAUTION: All plumbing and electrical connections
must comply with local codes and ordinances.
Figure 1: Installation of the Programmable Flushing Timer
on Steam Humidifier
8.
Connect tubing with clamps or fittings suitable for
your installation.
9.
Refer to the humidifier operating manual to return
the humidifier to its normal operating mode and
adjust the water level.
10. Plug the flushing timer into the designated outlet.
(See Step #2.)
11. Check all fittings for leaks. Tighten as necessary.
12. Test the flushing timer for proper operation.
A.
Press and release the MANUAL button.
B.
Wait 10 to 30 seconds* until the flushing noise
stops, indicating that the flushing cycle is
complete.
*The number of seconds will vary depending on
how the unit is programmed. (See “Reprogramming
Instructions” below.)
NOTE: To drain the humidifier for cleaning or
service, refer to maintenance instructions in the
humidifier owner’s manual, then follow procedures
in Step 12 above.
REPROGRAMMING INSTRUCTIONS
As previously stated, the flushing timer is set at the
factory to flush the humidifier every two hours for a
duration of 10 seconds, using approximately 1.5 gal­
lons of water per day. Although the two-hour intervals
between flushes may not be altered, the duration may
be lengthened to either 20 or 30 seconds per flush.
To Reprogram the Flushing Duration,
Follow these Steps:
1. Unplug the flushing timer from the electrical outlet.
2. Take off the back cover plate by removing the
three screws closest to the mounting flanges.
3. Inside, on the circuit board, locate the
red switch block with contains two
switches, numbered 1 and 2.
1.
If the humidifier has been pre-installed and needs
servicing, refer to the humidifier operating manual
for instructions.
2.
For a new or pre-installed humidifier, select a suit­
able mounting location for the flushing timer within
3 feet (0.91 meters) of the humidifier, and within
10 feet (3.05 meters) of a properly fused electrical
outlet.
3.
Locate a suitable waste drain for disposal of
flushed water.
CAUTION: Drain tubing must not kink or come
in contact with sharp edges or hot surfaces.
Tubing must run in a continual downhill slope to
allow proper drainage and to prevent overflow.
4a. If this flushing timer was purchased as an
accessory to install on a steam humidifier...
remove the drain valve from the humidifier and
install the 90° barbed fitting (provided), as shown in
Figure 1 above.
4b. If this flushing timer was purchased with the
steam humidifier as a complete assembly... the
90° barbed fitting already should be installed on
the humidifier in the proper location. (See Figure 1
above.)
5.
Screw the unit to the mounting surface selected in
Step #2.
6.
Cut a piece of drain tubing to reach from the
humidifier fitting to the fitting on the side of the
flushing timer.
NOTE: The switches are pre-set
in the 10-second mode, with the #1
switch in the ON position and the
#2 switch in the OFF position, as shown at
right. (Both switches in the ON position will also
produce a 10-second flush.)
4. To reprogram the flushing timer to 20second flushes every two hours, move
the #1 switch to the OFF position and
the #2 switch to the ON position, as
shown at left. In this mode, the auto­
matic flushing timer will use approxi­
mately 3 gallons of water per day.
5. To reprogram the flushing timer to 30second flushes every two hours, move
both switches to the OFF position, as
shown at right. In this mode, the auto­
matic flushing timer will use approxi­
mately 4.5 gallons of water per day.
6. Reposition the back cover plate on the flushing
timer and secure it with the three screws.
7. Plug the flushing timer back into the wall outlet.
Make sure it is functioning properly with the
humidifier. (See Step #12 above.)
NOTE: Lengthening the flushing duration will
help keep the humidifier cleaner. However, it
may also cause undesirable drain noise.
CAUTION: Drain tubing must not kink or come
in contact with sharp edges or hot surfaces.
(Caution applies to #7, as well.)
7.
Cut a second piece of tubing to reach from the
bottom fitting on the flushing timer to the drain.
(See Step #3.)
See back for Flushing Timer Instal­
lation on Reservoir Humidifiers 
Installation Instructions for the Programmable Humidifier Automatic Flushing Timer, continued...
To Install the Flushing Timer
on MOST Reservoir Humidifiers:
5.
Attach drain fittings as shown in Figure 5 below.
Figure 5: Drain Fittings Attachment
CAUTION: All plumbing and electrical connections
must comply with local codes and ordinances.
Figure 2: Installation of the Programmable Flushing Timer
on a Reservoir, Plenum-Mount Humidifier
6.
Screw the unit to the mounting surface selected in
Step #2.
7.
Cut a piece of drain tubing to reach from the
humidifier fitting to the fitting on the side of the
flushing timer.
CAUTION: Drain tubing must not kink or come
in contact with sharp edges or hot surfaces.
(Caution applies to #8, as well.)
1.
If the humidifier has been pre-installed and needs
servicing, refer to the humidifier operating manual
for instructions.
2.
For a new or pre-installed humidifier, select a suit­
able mounting location for the flushing timer within
3 feet (0.91 meters) of the humidifier, and within
10 feet (3.05 meters) of a properly fused electrical
outlet.
3.
Locate a suitable waste drain for disposal of
flushed water.
CAUTION: Drain tubing must not kink or come
in contact with sharp edges or hot surfaces.
Tubing must run in a continual downhill slope to
allow proper drainage and to prevent overflow.
4.
Attach the flushing timer drilling template to an
appropriate corner of the water pan (see Figures
3 and 4 below). Drill a 1/2 in. (1.27 cm) diameter
hole, as indicated on the template.
Figure 3:
Right-hand Installation
8.
Cut a second piece of tubing to reach from the
bottom fitting on the flushing timer to the drain.
(See Step #3.)
9.
Connect tubing with clamps or fittings suitable for
your installation.
10. Refer to the humidifier operating manual to return
the humidifier to its normal operating mode and
adjust the water level.
11. Plug the flushing timer into the designated outlet
(see Step #2).
12. Check all fittings for leaks. Tighten as necessary.
13. Test the flushing timer for proper operation.
A.
Press and release the MANUAL button.
B.
Wait 10 to 30 seconds* until the flushing noise
stops, indicating that the flushing cycle is
complete.
*The number of seconds will vary depending on
how the unit is programmed. (See “Reprogramming
Instructions” on front.)
NOTE: To drain the humidifier for cleaning or service, refer to the maintenance instructions in the
humidifier owner’s manual, then follow procedures
in Step 13 above.
IMPORTANT: Some reservoir models require
additional fittings. THESE MUST BE BRASS OR
STAINLESS STEEL.
For units with the water
valve entering the righthand side of the humidi­
fier cabinet, attach the
flushing timer template
on the right-hand side
of the water pan’s drain
fitting, as shown.
1. Follow the previous instructions for reservoir
humidifiers, except, rather than using a drilling
template, you will need to determine an appropri­
ate location for the 1/2 in. (1.27 cm) diameter hole
to be drilled into the humidifier water pan, based
on the design of the humidifier.
Figure 4:
Left-hand Installation
For units with the water
valve entering the lefthand side of the humidi­
fier cabinet, attach the
flushing timer template
on the left-hand side of
the water pan’s drain
fitting, as shown.
CAUTION: The drill hole must not interfere
with moving parts or operation of the
humidifier.
2. If necessary, use a 1 in. (2.54 cm) diameter hole
saw to create an exit hole for the water pan drain
fitting in the humidifier cabinet.
Part No. 000-0756-245 • Web 1/08
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