GeneralAire 900 SERIES Elite - Manuel (Page 5)

The operating principle of the humidifier is based on the most efficient and economical means of evaporating water to the air. The humidifier uses only 2.5 watts
of electrical power during operation, less than the smallest household light bulb. The heat necessary for evaporating water is produced by the furnace.
The water supply to the humidifier is controlled by the electric solenoid valve. The humidistat connected in series with the solenoid provides low voltage control
of the humidifier. The humidistat is designed for wall mounting in the living area or surface mounting on the return air duct. ELECTRICAL RATING: 24 VAC / 60
Hz.
Water flows through a strainer, is metered through an orifice to provide the proper amount of water, and is supplied to the evaporator pad by the distributor
trough. Approximately 200 CFM of air is by-passed from the warm air plenum through the humidifier and returned to the cold air plenum. Moisture is evaporated
to the air passing through the evaporator pad. Minerals are not blown into the air stream as occurs in atomizing humidifiers; they are left on the evaporator pad
where a high percentage is carried off with the waste water.
When the humidifier is installed and operating, no adjustments are necessary other than setting the control knob on the humidistat to the desired level of
humidification. Leave knob on the humidifier in "HI" or "WINTER" position. To turn the humidifier off, close water supply valve, switch electrical power off and turn
humidistat off. If furnace is used for summer cooling or ventilating set air damper on "LOW" or "SUMMER".
DO NOT SET RELATIVE HUMIDITY TOO HIGH DURING COLD WEATHER. EXCESSIVE HUMIDITY MAY CAUSE CONDENSATION ON WINDOWS OR IN
WALLS. REFER TO RECOMMENDED SETTINGS AS DESCRIBED IN THE HUMIDISTAT OWNERS MANUAL.
Model No. Loose (0.75 AC/H) GPD Average (0.50 AC/H) Tight (0.30 AC/H)
Elite 570 12 800 sq. ft. 1200 sq. ft. 2000 sq. ft.
Elite 900 17 1115 sq. ft. 1650 sq. ft. 2800 sq. ft.
Elite 1000 18 1175 sq. ft. 1770 sq. ft. 3000 sq. ft.
Outside Design Temp 0° F (-18° C)
Outside Design R.H. 70% R.H.
Inside Design Temp. 70° F (21° C)
Inside Design R.H. 30% R.H.
Air Changes/hour (AC/H) 0.30
Ceiling Height 8 ft
Furnace Plenum Temp. 120° F (49° C)
Furnace run time for 8hr/1 day
calculating sq. ft.
15 1/2”
17 1/2”
13”
ELITE 900 HUMIDIFIER SPECIFICATIONS
Model 900A (GFI#5720) includes:
Humidifier components: GA19 Vapor pad, GA4040 solenoid assembly, Integral Bypass Damper
Accessories: GFX3 Automatic Digital Humidistat, 24V Transformer, Code Valve, Saddle Valve
Model 900M (GFI#5725) includes:
Humidifier Components: GA19 Vapor Pad, GA4040 Solenoid Assembly, Integral Bypass Damper
Accessories: Manual Humidistat, 24V Transformer, Saddle Valve
Expected Humidity Performance Coverage in Square Feet Based on Construction Type
HUMIDIFIER PACKAGED COMPONENT ACCESSORIES
Humidifier Performance Baseline Criteria
12”
8-7/8”
Humidifier Chassis with plenum
cut out shown as dashed lines