HE220A,B AND HE260A,B BYPASS FLOW-THROUGH HUMIDIFIER
68-0191—3
6
Table 5. Recommended Convertible Humidity Control Settings.
M12304
WATER
FEED NOZZLE
HUMIDIFIER
PAD ASSEMBLY
FRAME
HUMIDIFIER
HOUSING
SIDEWALL
BYPASS SIDEWALL
COVER
WATER
FEED TUBE
Humidity Level Recommended Adjustment
Insufficient humidity Increase the frost factor dial by one setting.
Condensation on windows Decrease the frost factor dial by one setting.
At Outside Temperature Recommended Setting At Outside Temperature Recommended Setting
-20°F (-29°C) 15 +10°F (-12°C) 30
-10°F (-23°C) 20 +20°F (-7°C) 35
0°F (-18°C) 25 Above 20°F (-7°C) 40
Table 6. Recommended Frost Factor Settings.
OPERATION
The HE220A,B and HE260A,B Humidifiers use the principle
that vapor (evaporated water) is created when warm air blows
over a water soaked area. As the vapor circulates, the relative
humidity rises.
The humidity control monitors the relative humidity and
activates the humidifier accordingly. The humidifier has a
water supply that disburses water over a humidifier pad. The
warm dry air from the furnace passes over the humidifier pad
and collects moisture and them circulates it through the
house.
Humidified air feels warmer and more comfortable so the
homeowner may be able to lower the thermostat heating
setpoint and save money on heating fuel bills. The end result
is that the humidifier gives the homeowner a comfortable
environment that is also energy efficient.
MAINTENANCE
A regular maintenance program prolongs the life of the
humidifier and provides a more comfortable environment.
Either hard or soft water can be used in the humidifier.
Frequency of cleaning depends on the condition of the water.
CAUTION
Voltage Hazard.
Can cause electrical shock and equipment
damage.
Disconnect power supply before installing or
servicing.
IMPORTANT
Never oil any part of the humidifier.
Every 1 to 3 Months
(Depending on Water Quality)
Use the following procedure to clean the humidifier:
1. Disconnect the power and turn off the humidifier water
supply.
2. Remove the humidifier cover. See Fig. 5.
Fig. 5. Location of humidifier parts.
3. Remove the humidifier pad assembly from the
humidifier by grasping the tray and pulling it toward
you.
4. Pull one side of the humidifier pad assembly frame
toward you and remove the tray from the frame.
5. Gently pinch the water nozzle catches inward until the
water nozzle can be lifted off the tray.
6. Slide the humidifier pad out of the frame.
7. Carefully scrape any mineral deposits from the tray and
frame. Be sure the frame drain hole has nothing
blocking it.
8. Check the humidifier pad and if excessive mineral
deposits are present, replace with a new pad.
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