When the floor heating switch is turned on, drainage work is required, otherwise the floor heating water will be blocked and will not flow when turned on. The floor heating switch is off when it is sideways and on in the same direction as the pipe, the specific steps to turn on the floor heating switch correctly are as follows:
< p>1. the floor heating valve group, including main valve, bypass valve and air discharge valve.2. Open the main water inlet valve and the water inlet bypass valve.
3. Connect the hose to the return water discharge valve and open it.
4. Open the first return water diversion valve.
5. Open the second bypass valve when clean, bubble-free water flows from the return water purge valve.
6. Use the same method to open the varemaining branch lines.
7. Finally, when opening the main water return valve, close the return water drain valve to complete the operation.