All the warm water heating cycle, control the pump switch is what kind of good, is the time switch, or time relay, what is the difference between the principle, there is the price is how much?
See you with the time relay price of each twenty or thirty yuan or so
If it is a few minutes or 10 minutes to run a few minutes or 10 minutes, that is, the time to stop and run almost the same time with the relay.
According to your description should use the time switch (also called timer), it is recommended to select 168 timer (you can choose the week, 24 hours a day selection, sub-12--16 segment timing). The price of about 35 - 65 yuan.
To warm the life of hot water circulation, control the pump switch I think the best temperature control switch, according to the pump power selection relay, controlled by the thermostat to achieve automatic temperature control. Of course the price is more expensive. The price of about 150-200 yuan.
