
The specific directions for adjusting the valve vary, depending on which Honeywell model you have. Remove the temperature range label on the thermostatic mixing valve to access the temperature controls. Fit a 3/16-inch Allen wrench into the screw.
How do I adjust the pilot light on a Honeywell gas valve?
Not all Honeywell gas valves have this option. Use the screwdriver to turn the screw clockwise to lower the pilot light. This moves the screw into the gas valve, lowering the flame. Turning this screw too much will extinguish the pilot light. Turn the screw counterclockwise to raise the screw which will raise the height of the pilot light.
How do you adjust the hot water temperature on a gas water heater?
Turn the dial towards "Very Hot" to raise the water temperature. The "Very Hot" setting can reach 160 F for a residential water heater. This temperature can cause burns. Be very careful when moving the water temperature higher on the gas valve. Remove the screw cap cover to the pilot light adjustment screw with a screwdriver.
Where is the gas valve on a Honeywell water heater?
The gas valve is located on the front of a water heater. Honeywell offers a wide variety of gas valves for residential and commercial properties which control the hot water heater or boiler. Honeywell valves offer the user the ability to adjust the temperature of the water, the pilot light and the pressure of the tank in easy to access areas.
What kind of mixing valve is the amx300?
This is the AMX300 Series DirectConnect mixing valve. It seems like the one where you have to loosen the screw is the Honeywell/Sparco AM100 series. I don't think I have a recirc pump on my system.

How do you adjust the temperature on a mixing valve?
0:291:38How to Adjust Your Alde Hot Water Mixing Valve - Tech Talk - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou want to turn that towards the plus symbol. That's going to allow more hot water to come into theMoreYou want to turn that towards the plus symbol. That's going to allow more hot water to come into the mixing valve. And then to all your faucets your shower.
How does a Honeywell mixing valve work?
The valve uses a mixing action to help prevent scalding.Helps prevent bacteria growth by helping you to set your water heater at 120 Degree F.Helps prevent scalding by reducing the temperature at the faucet.Helps extend the capacity of your existing hot water heater.3/4 in. ... Meets IAPMO, ASSE 1016 and 1017 standards.More items...
How do you adjust a sink mixing valve?
0:441:13SinkMixer scald protection thermostatic mixing valve - YouTubeYouTubeStart of suggested clipEnd of suggested clipKey you snap the cover off. And then you can adjust the valve from hot to cold to adjust yourMoreKey you snap the cover off. And then you can adjust the valve from hot to cold to adjust your temperature.
Are shower mixing valves adjustable?
These valves automatically adjust when there is a sudden deficiency of hot water to keep the temperature constant. Faucets with these types of valves also have a built-in temperature limiter that you may have to adjust as the season changes.
What happens when a mixing valve fails?
Your water temperature isn't right Sometimes, a failing TMV makes the water too cold. Or, water may not run at the right temperature consistently. It may fluctuate between being hot and cold. In some cases, a faulty TMV can also affect your cold tap.
How do you adjust a Honeywell water heater?
0:371:45How to Adjust Water Heater Temperature - YouTubeYouTubeStart of suggested clipEnd of suggested clipFind the knob on the valve. And set the temperature between 115. And 120 degrees this loweredMoreFind the knob on the valve. And set the temperature between 115. And 120 degrees this lowered setting will protect the tank from overheating.
What is a mixing valve on a sink?
A thermostatic mixing valve is intended for under-sink installation to control the hot water temperature and prevent accidental scalding. The water temperature must be adjusted by the installer using a thermometer to measure the hot water temperature at the faucet outlet.
Why is there a mixing valve under my bathroom sink?
Lavatory mixing valves mix hot and cold water in under-the-sink installations to minimize the risk of scalding.
How does a faucet mixing valve work?
As the element expands and contracts, it moves the slide valve (5) to correctly proportion the amount of cold and hot water entering the valve. If the cold water supply were to fail slowly over a long period of time, the valve would increasingly throttle the hot supply to maintain a safe temperature at the outlet (3).
How do I regulate the water temperature in my shower?
Adjust the Shower ValveRemove the handle. You may need a screwdriver to do this.Take off the metal cover beneath the handle, exposing the valve stem. ... Turn the RSL two notches in whichever direction desired, then put the RSL back in place.Replace the faucet handle, then test the mixture of hot and cold water.
How do you adjust the temperature on a shower mixer tap?
0:111:33Traditional Shower Valve Temperature Adjustment - YouTubeYouTubeStart of suggested clipEnd of suggested clipTurn the shower arm with the flow control handle and allow the temperature to reach its currentMoreTurn the shower arm with the flow control handle and allow the temperature to reach its current maximum hot setting. Place the temperature control knob loosely back onto the spindle.
How do I adjust the pressure on my shower valve?
3. Adjust your pressure reducing valve.PRVs have a nut on the top that's used to adjust the pressure. You'll need a socket wrench to rotate the nut.Turn the nut clockwise to increase the pressure.Be careful about setting the pressure too high. Household fixtures are designed to operate under 40-60 psi.
How does a mixing valve work?
The mechanism of Thermostatic Mixing Valves is a basic wax thermostatic principle which limits the quantity of hot water and cold water by blending. Also, if the temperature rises above the requirement point then the mixing valves automatically shuts down thus preventing extra hot water to flow through the pipe.
How does a mixing valve work on a hot water heater?
A mixing valve is a mechanical device that mixes cold water with hot water to deliver mixed, or tempered, water downstream (think of your shower valve). These devices can be put directly onto the water heater outlet so that the tempered water gets delivered everywhere.
How does a mixing valve work on a boiler?
The mixing valve provides the ability to have the heat source (boiler or water heater) set at a higher temperature to satisfy the high temperature loads and then have the radiant circuit supplied with a lower water temperature through the mixing valve.
What is the difference between a mixing valve and a thermostatic mixing valve?
Using a mixing valve can also extend the storage capacity & size of the hot water source. Thermostatic mixing valves react very well to changes in temperature, but they can also handle pressure variations (around 10%). They will maintain stable outlet temperatures given large inlet temperature variations.
Where is the gas valve on a Honeywell water heater?
The gas valve is located on the front of a water heater. Honeywell offers a wide variety of gas valves for residential and commercial properties which control the hot water heater or boiler.
Where is the water temperature dial on a gas valve?
Find the water temperature dial located on the front of the gas valve. The dial will typically have listings such as "Low," "Pilot," "Warm," "Hot" and "Very Hot" listed on the dial, along with letters like "A" and "B" listed between the words on the dial.
How to lower water temperature?
Lower the temperature of the water by turning the dial towards the low section of the dial. If leaving for vacation or other extended period, move the dial all the way to "Low" to save on gas costs since you will not use the water.
Can you over adjust a Honeywell gas valve?
Adjusting a Honeywell gas valve is very simple. However, take care not to over-adjust any of the areas, which could lead to burns or failure of the water heater. Advertisement.
