
The Humidier Automatic Flushing Timer
automatically ushes accumulated min-
eral deposits from all central-system
steam- and reservoir-type humidiers.
This enables homeowners to enjoy the
benets of healthful, humidied air without
the hassles of frequent maintenance due
to mineral buildup.
The ushing timer is set at the factory
to ush the humidier every two hours
for a duration of 10 seconds, using
only about 1.5 gallons of water per day.
(See “To Reprogram the Automatic Flushing Timer”, pages 11 and 12, for
alternate settings.) This ushing reduces or eliminates servicing during the
humidication season, depending on the mineral content of the water.
How To Install the
Pro grammable Automatic Flushing Timer
To Install the Flushing Timer on a Steam Humidier:
Locate a suitable waste drain for disposal of ushed water.
CAUTION: Drain tubing must not kink or come in contact with
sharp edges or hot surfaces. Tubing must run in a continual down-
hill slope to allow proper drainage and to prevent overow.
4a. If this ushing timer was purchased as an accessory to install on a
steam humidier... remove the drain valve from the humidier and
install the 90º barbed tting (provided). (See Figure 9 on page 10.)
4b. If this ushing timer was purchased with the steam humidier as a
complete assembly... the 90º barbed tting should already be installed
on the humidier in the proper location. (See Figure 9 on page 10.)
Screw the unit to the mounting surface selected in Step #2.
Cut a piece of drain tubing to reach from the humidier tting to the tting
on the side of the ushing timer.
CAUTION: Drain tubing must not kink or come in contact with sharp
edges or hot surfaces. (This caution applies to step #7, as well.)
Cut a second piece of tubing to reach from the bottom tting on the
ushing timer to the drain. (See Step #3.)
Connect tubing with clamps or ttings suitable for your installation.
Return the steam humidier to its normal operating mode. Refer to pages
8 & 9 to properly set the water level.
Plug the ushing timer into the designated outlet. (See Step #2.)
Check all ttings for leaks. Tighten as necessary.
Test the ushing timer for proper operation.
Press and release the MANUAL button.
Wait 10 to 30 seconds* until the ushing noise stops, indicating that
the ushing cycle is complete.
*The number of seconds will vary depending upon how the unit is
programmed. (See “To Reprogram the Automatic Flushing Timer”,
below.)
To Reprogram the Automatic Flushing Timer:
The ushing timer is set at the factory to ush the humidier every two hours
for a duration of 10 seconds, using approximately 1.5 gallons of water per
day. Although the two-hour intervals between ushes may not be altered, the
duration may be lengthened to either 20 or 30 seconds per ush.
Unplug the ushing timer from the electrical outlet.
Take off the back cover plate by removing the three screws closest to
the mounting anges.
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Figure 9—Installation of a
Programmable Automatic
Flushing Timer on a Steam
Humidier
CAUTION: All plumb-
ing and electrical con-
nections must comply
with relevant codes and
ordinances.
If the humidier has
been preinstalled and
needs servicing, refer
to “How to Maintain a
White-Rodgers Com-
fortPlus Humidier”
(page 12) for instructions.
For either a new or preinstalled humidier, select a suitable mounting
locations for the ushing timer within 3 feet of the humidier, and within
10 feet of a properly fused electrical outlet.
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