Tjernlund Automatic 8" Duct Booster Fan with Cord - EF-8AUTO
The EF-AUTO Series Duct BoosterŽ fans are designed to increase the flow of heated air in warm air heating systems or cooled air in central air conditioning systems. The EF-AUTO series include a 115 VAC power cord and built-in Pressure Response Control so they can be automatically operated when the forced air system fan/blower is running.
The EF-AUTO Series are controlled by an electronic Pressure Response Control (PRC). The PRC control senses positive pressure in the duct work and turns the EF-AUTO Fan on when the forced air system fan/blower is running. The EF-AUTO fan will continue to run after the forced air system fan/blower shuts off to continue to distribute warm or cool air to the room. NOTE: The PRC may momentarily shut the EF-AUTO unit off while the forced air system fan/blower is running while it does a pressure check to determine if the EF-AUTO should continue to run.
SPECIFICATIONS:
Duct Diameter - 8"
Length - 9" L
Cord Length - 5 Feet
Watts: 56
Amps: 1.1
Volts: 120 VAC
Maximum Air Temp - 150 degrees
Fan Blade Material - Aluminum
Duct Length and Airflow:
0 Feet - 325 CFM
25 Feet - 300 CFM
50 Feet - 250 CFM
75 Feet - 200 CFM
- based on straight metal duct. 90 degree elbows are equivalent to 10 feet of straight duct. 45 degree elbows are equivalent to 5 feet of straight duct. Performance is based on 70 degrees F standard air.