Fan Speed Controller Air Pro II

The RAM AIR-PRO II is a quiet and intelligent indoor climate controller designed to control two in-line extractors / extractors, monitoring and maintaining the desired room temperature and air pressure. 

This smart fan speed controller learns your optimal speed for your desired temperature and pressure. The unique software will automatically calculate the running speed of your fans and learn from this to modulate them to a single running speed that maintains the required temperature you have set. Includes 2m temperature probe. 

The RAM AIR-PRO II seeks a stable fan speed to maintain the desired temperature. This means that your fans will run below the maximum operating speed. They will operate at maximum efficiency in relation to power versus performance, extending the life of the fan motor, while only using the minimum required electricity.

Temperature setting

Allows you to adjust the trigger point at which the extractors will change speed. If the measured room temperature exceeds that set in the controller, the fans will run at full speed to reduce the temperature.

If the measured room temperature is lower than that indicated on the controller, the fans will slow down to maintain the required room temperature.

If you press the mode button once, the temperature will flash in the center of the screen. Now you can regulate the room temperature you want. Once the temperature is indicated, you can press the mode button to access idle speed or wait 20 seconds for the controller to return to the normal operating screen.

Idle setting

It allows to regulate the minimum operating speed at which the extractors will go when the room temperature is lower than that indicated on the controller.

Press 2 times from the main screen or 1 time from the temperature setting screen. The% symbol will appear at the top right of the screen, the numerical value in the center of the screen will flash, as well as the word IDLE from the graph at the bottom left of the screen.

Now you can regulate the minimum speed (in percentage). A value of 0 will slow down the extractors until they stop, a heat of 99 will keep them running at maximum speed regardless of the measured temperature. It may take several attempts and a follow-up to adjust this value to suit your needs. This value may need to be adjusted if room conditions vary.

Balance control adjustment

Allows you to set the difference in speed between the inlet and outlet fans to create a negative pressure within the grow room. 

Press the mode button 3 times from the main screen or 1 time from the idle setting screen. The percentage symbol (%) will appear in the upper right of the screen, the central numerical value will flash, as well as the word BULLET on the graph at the bottom of the screen.

Now you can adjust the differential or balance value between the 2 extractors with the up and down buttons on the right. A value of 0 means that there will be no difference and both fans will run at low speed during cooling. For the idle speed set by the user to maintain room temperature, a value of 95 will create the maximum difference between the 2 fans. Now the unit will increase the speed of the fan or reduce the speed of the intake to maintain this differential, to ensure a negative pressure inside the grow room.