Description
The Johnson Controls Y99AA-4 Manual Opener Key is designed solely for the V11 Series valves and it is easy to use to control these HVAC parts. This will provide long and efficient operation and easy handling because it is made of strong materials. It is particularly useful in cases where the use of automatic systems has to be overridden for maintenance or in case of a problem or where the manual control is needed. Technicians can operate the system safely and efficiently when opening or closing the valve with the help of the Y99AA-4 at the right time.









