Differential Attic Fan Controller

I connected this pt6 thermostat set at 100 in series with a 2nd generic electric water heater thermostat set at 115 and connected both speeds of the fans to it.

Differential attic fan controller.

To prevent the fan from turning on in cold weather a third comparator is used. 15 degrees f width. As the heat in the attic rises above 100 the pt6 turns on power to the 2nd thermostat and starts low speed on. Attic fan control cooling only differential.

This time the cold shut off pot sets a point voltage below which the relay won t engage. I have 2 speed attic fans lo hi. The apc or bms controller shall compare the control signal representing the outdoor air intake flow rate and the airflow rate in the exhaust duct calculated based on the fan speed ratio using fan laws flow α fan speed and issue a 0 10 vdc or 4 20 ma control signal to position the exhaust fan vsd to maintain a constant differential between the two airflow rates. Standard 2 x 4 vertical box depth.

Shop today and pick up the fan control switch. It is a simple off on control. This american designed fan is designed to reduce attic temperatures and remove destructive moisture thus making your home more comfortable and reducing the load on your hvac system and lowering your. For starters i am building a smart controller for my attic fans that will use temperature and humidity for inside the attic and outside ambient for inputs.

This unique control also has a two or three speed auto adjustment based on temperature so. Ideal attic temperature and humidity settings. Choose from single gang double gang triple function time delay electronic timer and other types of switches. Freezing and excessively hot outdoor temperatures rain and high.

You ll find toggle and rocker switches with matching wall faceplates in ivory white silver brass and chrome. The remington solar ventilation attic fan is completely the remington solar ventilation attic fan is completely powered by free solar energy. 120 to 240vac mounting. The temp difference pot sets the size of the window the temperature differential.

A pair of 10k thermistors of course are the. 4 9 16 country of origin subject to change. 80 degrees to 130 degrees f includes. Ideal attic temperatures and humidity settings aren t always easy to maintain.

Iliving 16 wall mounted shutter exhaust thermostat control 3 speeds vent fan for home attic shed or garage ventilation 1200 cfm 1800 sqf coverage area variable silver 4 6 out of 5 stars 451 136 62 136. When you need a fan control switch check the grainger selection first. 2 1 8 inductive amps 120v. Attic fan controller question.

I have two sections of attic separated by a vaulted section that i have located a path to run wiring between the two.