Jamison245
New Member
I just joined this forum, and before anything else would like to say "Thank you" to all who take the time contribute. I have gleaned much valuable information for my DIY plumbing projects.
I recently had a new gas-fired hot water tank installed in my home. This installation included a Residio Braukmann ASX300 Series mixing valve. (May be required now in NH?) After a couple of weeks, I decided to measure the hot water temperature at the kitchen sink, which is the closest fixture to the tank. My digital thermometer measured almost 150° F.
So now I need to try and adjust the mixing valve to get the hot water temperature down to about 120°. I turned the adjustment knob in small steps while continuing to flow water into a container which held the thermometer. I could not affect any real change in the water temperature at the faucet. I begin to look online to see what I can find about this type of mixing valve, thinking that there was something I did not understand. I found the installation instructions for a Honeywell-branded valve that looked exactly the same as what was installed on my tank. In these instructions, and also in pictures found on the web, the part of the mixing valve kit that contains the adjustment knob is always installed on the hot water port of the tank. In my case, it is on the cold water side.
So that is my question. Is this mixing valve installed correctly? At the very least, I have to contact them about the lack of control the hot water output. My understanding is that the adjustment knob on the mixing valve should yield a reasonably quick change in the measured temperature of the hot water.
Thank you!

I recently had a new gas-fired hot water tank installed in my home. This installation included a Residio Braukmann ASX300 Series mixing valve. (May be required now in NH?) After a couple of weeks, I decided to measure the hot water temperature at the kitchen sink, which is the closest fixture to the tank. My digital thermometer measured almost 150° F.
So now I need to try and adjust the mixing valve to get the hot water temperature down to about 120°. I turned the adjustment knob in small steps while continuing to flow water into a container which held the thermometer. I could not affect any real change in the water temperature at the faucet. I begin to look online to see what I can find about this type of mixing valve, thinking that there was something I did not understand. I found the installation instructions for a Honeywell-branded valve that looked exactly the same as what was installed on my tank. In these instructions, and also in pictures found on the web, the part of the mixing valve kit that contains the adjustment knob is always installed on the hot water port of the tank. In my case, it is on the cold water side.
So that is my question. Is this mixing valve installed correctly? At the very least, I have to contact them about the lack of control the hot water output. My understanding is that the adjustment knob on the mixing valve should yield a reasonably quick change in the measured temperature of the hot water.
Thank you!
