GeneralAire 800 Legacy - Manuel (Page 5)

The water supply to the humidifier is automatically controlled by the water
pressure against the neoprene pan diaphragm.
When the water level is approximately 1 inch deep in the pan, the pressure
on the pan diaphragm causes the actuator plate to pivot pushing the screw
and valve seat against the orifice, shutting off the flow of water.
As the water is drawn from the pan and evaporated through the evaporator
plates, the pressure on the pan diaphragm is reduced, allowing the actuator
plate to pivot away from the valve, opening the water inlet orifice. This
allows water to flow from the orifice through the valve chamber and drip
tube to refill the pan.
Your Humidifier is engineered to give helpful and trouble-free humidification. For maximum efficiency the following cleaning procedures should be carried
out at the end of each heating season:
REPLACING EVAPORATOR PLATES AND CLEANING HUMIDIFIER
1. Turn off water supply to humidifier.
2. Disconnect the 1/4” water supply line from the humidifier.
3. Loosen the four screws holding the humidifier in place.
4. Lift humidifier up and slide out.
5. Remove old evaporator plates.
6. Clean pan with scouring pad and rinse thoroughly.
7. Replace evaporator plates with Generalaire 880 evaporator plates.
8. Carefully slide humidifier into opening to prevent breaking evaporator
plates.
9. Tighten the four screws and reconnect the 1/4” water line to the
humidifier. Turn on the water supply and check all points for leakage.
The humidifier is now ready for operation.
10. During the summer, turn off water supply to humidifier.
DO NOT DISTURB VALVE ASSEMBLY UNLESS IT SHOULD FAIL TO
FUNCTION PROPERLY.
SERVICING THE VALVE
If the valve should malfunction look for dirt in the orifice and neoprene
valve seat.
A. Turn off water supply to humidifier. Disconnect the 1/4” water supply
line from the humidifier. Loosen the four screws holding the humidifier in
place. Lift humidifier up and slide out.
B. Remove the four screws from the valve body and pull from neoprene
valve diaphragm.
C. Remove screen disc from orifice fitting with wire paper clip. Clean
orifice and screen.
D. Clean all dirt and scale frame neoprene valve seat and examine seat
for wear.
E. Replace valve body with orifice fitting on top. Do not over tighten
screws.
F. Reconnect the 1/4” water line to the humidifier. Turn on water supply
and adjust valve to shut off when water level is approximately 1/4 inch
above holes in pan baffle. When the water reaches this level turn valve
adjusting screw in slowly until water stops dripping from drip tube. To test
this setting dip water from the pan. Water should start dripping from the
drip tube. The humidifier is now properly adjusted to automatically
maintain this water level in the pan.
CARE AND MAINTENANCE
HOW THE HUMIDIFIER WORKS
FILL OUT AND MAIL THIS
WARRANTY CARD AND
LITERATURE REQUEST FORM
A IR C LEANERS AND A IR P URIFIERS
H UMIDIFIERS
D IGITAL H UMIDITY G AGE
A IR F ILTER G AGE
F UEL O IL F ILTERS AND
A CCESSORIES