recirculator

Recirculating control aquastat must be set at least 5oF to 10oF lower than the temperature setting of the Series N170-M2 valve, otherwise the recirculator will run continually.

再循环控制水温自动调节器温设置必须比系列N170-M2设置温低5至10华氏，否则，再循环器将会行。