Hole In Wall
NOTE: Make sure wall outlet is not controlled by a switch.
Set knob to the lowest temperature
predicted for a
period. Because of differences
in house construction
you may want to try a higher or lower setting to achieve proper
DO NOT LEAVE KNOB SET ABOVE
WILL RUN CONSTANTLY
AND MAY OVER
IF SWEATING OF WINDOWS OR WALLS
OCCURS OR IF AIR ISTOO DRY:
Check dial setting. Indicator should point to the lowest 24 hour
If setting does not agree, readjust knob to proper
number and wait 24 hours for sweating
to stop. If dial setting
was correct and conditions have not changed, rotate knob back
and forth from TEST to MINIMUM HUMIDITY SETTING. If hu-
midifier goes ON and OFF, control is operating
This humidifier depends on the difference of air pressure between
the supply air plenum
and the return air plenum to propel air
through the humidifier. Some furnaces have higher pressures than
others. This could result in air travelling at high speed through
the humidifier. This can cause droplets of water to be picked up
against the inside of the humidifier case. Eventu-
ally a coating of lime will build up. It could in extreme cases, cause
leaking of water from the humidifier. If possible, operate the fur-
nace blower at a lower speed.
in the collar
return air plenum. Some experimenting
may be necessary
find the proper setting.
If your furnace has air conditioning (cooling), close the damper
during summer months and turn the humidistat to
Humidity setting. BE SURE TO OPEN DAMPER
DURING HEATING SEASON.
Do not use tablets in an attempt to control lime de-
posits in this humidifieH
Use of tablets may cause
to splash causing
THIS HUMIDIFIER IS AN APPLIANCE THAT EVAPO-
RATES WATER IN LARGE QUANTITIES.
The dissolved minerals normally found in tap water are left as
lime deposits in the humidifier.
essary to keep the parts free of lime deposits. Deposit build-
up will reduce humidifier
Ease of servicing
foremost in the design of this humidifier, Service at least every
(4) four weeks during the heating season or more often de-
pending on the water conditions.
Close saddle valve.
Remove the front plastic panel and lift up top hinged cover.
Pull out pivot pin and remove float and float arm.
Lift out the media wheel and reservoir.
Pour contents of reservoir down the drain.
Clean lime from all parts using a solution of vinegar and wa-
ter, detergent and water, or Sears All-Purpose
Cleaner (Stock No. 42-14713).
Remove media pad from inside of wheel and clean thor-
No. 42-14603). IMPORTANT:
Stretch new media length-
placing in wheel.
If the Reservoir
has been overflowing,
the operating Float
Valve Button may be worn. Remove the operating
Valve Button, turn it over and reinsert or replace after both
surfaces are worn (see page 10, Fig. 25).
10. Reinstall reservoir, media wheel with pad, float and pivot pin.
11. Open saddle valve and check water level in reservoir. Adjust
float as required.