If the incoming hot water is below 180°, the temperature output is less. Most gas control valves have a knob with various labels such as A-B-C on them. A thermostatic mixing valve that can be installed at the water heater or any fixture to distribute controlled temperature water through a domestic hot water system. Gas water heaters have a setting knob that can be turned to adjust the temperature. Different brands of gas water heater control valves may have different labels. Thermostatic temperature controllers for single-family houses and flats are used to control the flow temperature in instantaneous/storage domestic hot water and heating systems. It monitors the hot water demand from an open hot water fixture. AVG TEMPERATURE CONTROL VALVE - TCV15-i 15mm with insulation TCV - Temperature Control Value Standard (red cap) Suitable for applications requiring blended water. The WT8840 series is the Water Heater Control for trade use to replace WV8840 valves used in AOSmith and Bradford White Water Heaters. My 140° water from my hot water heater comes out around 110°-115°. With their fast opening and closing, they protect the heat exchanger from scaling and ensure a long lifetime for the equipment installed in the system. AVG Australian Valve Group. Cut the copper pipes at your water heater and reroute them through a mixing valve. Flow Sensor. Control the hot water temperature at faucets and showers that don't have anti-scald valves by installing either a mixing valve or a point-of-use tempering valve. T&P valves used on residential water heaters are typically designed and manufactured to relieve pressure at 150 psi and temperature at 210 degrees F. ASME, ANSI and CSA (AGA) approved relief valves protect the water heater from excess pressures and temperatures by discharging water. Verify choke points in the unit that can restrict good water flow through the unit: filter screen assembly and water control valves and in older installations it may require the unit to be descaled. The variable “on-switch for the heater. It is designed for use in Standing Pilot applications using an immersion well for water temperature sensing. AVG Temperature Control Valve for Hot Water 15mm with insulation. Triple-listed to conform to … Water Heater Thermostatic Mixing Valve - page 2 https://www.watts.com/resources/references-tools/thermostatic-mixing-valves Series 1170, L1170 Hot Water Temperature Control Valves are specifically designed for mixing hot and cold water on hot water supply systems. $174.31. Water heater problems that may be caused by the gas control valve include a faulty hot water heater thermostat, faulty gas valve, pilot light that won’t light, and tripped heat limiter.Here’s what you need to know about replacing your water heater’s gas control valve. They can be used for a variety of applications to reduce the temperature of the hot water from the system, and are ideal for radiant heat applications. Water Control Components.