Amtrol - Therm-X-Trol

Below are all the different types of Amtrol. Select the device of your choice, to download the manual

Contents

It expands Reacting to physical law water expands in volume as its temperature rises COLD WATER SUPPLY In a 40 gallon water heater for example water being heated to recover after usage will expand to about 40 60 gallons when the desired temperature is reached OPEN SYSTEM In the Good Old days Before the advent of cross connection control expanded water that exceeded the capacity of the water heater flowed back to the city main where it easily dissipated It was open at the city supply side of the system even though it was closed on the system side BackFlow Preventor w BFP CLOSED SYSTEM Cross connection means no return Today with back flow preventers water meters with check valves and or pressure red ...