Frequently asked questions about PriceSwitch

My boiler has a heater element with over 3000W. Can I still use PriceSwitch and how?

Yes. PriceSwitch can be used to control all types of heating systems. We recommend installing PriceSwitch directly to the power supply of the heating system only when the maximum load of the heating system is below 3000W. For bigger loads than 3000W, a contactor should be used to control the power supply of the heating system. For contactor type recommendation, please see here

I have multiple heaters on my boiler. Can I control them all with PriceSwitch, and how should I do the installation? What should I do if the total power of the system is over 3000W?

Yes, you can install multiple heaters behind Themo PriceSwitch. However, it is mandatory that all heating systems have their own thermostat as Themo does not follow the heaters safety temperatures in PriceSwitch mode. To control multiple heaters with one PriceSwitch, a contactor should be used in a setup where Themo PriceSwitch sends control signals to the contactor which in turn turns all the heaters ON/OFF simultaneously.

What happens, if PriceSwitch loses power or I switch it off deliberately?

When PriceSwitch loses it's connection to the internet for more than 24 hours, it will go into ON mode (relay always ON). 

If the device completely loses electrical power, the relay will stay open and there will be no heating at all.

How should the Jumper part be connected?

The Jumper cable is used if the user needs to control a 230V load for the heating system/contactor. 

In such a setup, the jumper cable is connected into the two middle slots on the LOAD side of the connectors. This connects the mains L 230V with the relay output L Load. 

If PriceSwitch is used to control a 24V system, then there is no need to use the jumper cable. In such a case the 24V operating cable should be inserted into the relay connector slot (second one from the left), thus providing a 24V output from L Load.