Hello!
Please tell me how to connect the coil and fill it with water?
Previously, plumbers installed 2 ball valves on the heating pipe in the bathroom, to which you can connect the inlet and outlet (in fact, there is a bypass between them when the coil appears). So, do I need to slightly open the connection at one of the entrances until it rises with water? Or is there a smarter option?
Let me start by saying that you are probably wrong. Towel dryers are not installed on the heating riser, but on the hot water riser.
Although I will not deny that in old houses they work from heating. In the summer they are also cold and we dry our towels on the balcony if it doesn't get cold.
The fact is that the heating is turned off for the summer, and the towel after the shower must be dried in the summer. Accordingly, I describe the situation based on
from the fact that your dryer is installed on the DHW riser.
If I understand correctly, the faucets look something like this:
(The bypass here is behind the wall.)
So, if a towel-dryer is like in the photo (coil), then you just need to screw it on correctly, then open the hot water on the mixers.
Keep in mind that air with hot water will escape from the mixer and can spray everything around. Be careful with this and do not pour hot water on it. It is advisable that some assistant hold the bucket at the edge of the mixer spout, let the spray fly over the bucket.
Or pull a wet cloth or towel over the faucet spout
After you have prepared and installed the dryer, first quietly open the top faucet and then the bottom one. The air will exit along the path of least resistance, through your faucets. I did this method myself.
If the pressure is weak, then the air will go into the riser, and then it will come out at someone else in the mixer, or it will get up somewhere and the circulation will stop. But this is not to be feared. As soon as they begin to actively use water, the air will come out through the first mixer that comes across.
If you have a mixer like this:
Then in its upper part a Mayevsky crane should be installed,
Through it and bleed air.
We have a towel dryer installed on the heating riser. There is no hot water in our house.
And if you put a tee between the entrance to the coil and the tap into which the Mayevsky tap is screwed in, will it be possible to bleed air through it?
In this case, you have two ways:
1. Yes, in this case you can bleed air by installing the Mayevsky valve at the top. First, open the lower faucet, bleed the air, and then only the upper one.
2. Either connect the dryer, call the local plumbers and ask them to bleed the air from the riser in the attic, well, or where it is done in your house.
When installing a Mayevsky faucet, you need to consider the following: if the space for the dryer is limited and you install a tee, then the heated towel rail will move exactly the length of the tee and stick out in the door, for example, like this:
With this installation, you can accidentally burn yourself on this heating device when entering or leaving the bathroom.
If the dryer is installed elsewhere and there is room to move it,
Then do not forget about the extension cord that you will need at the bottom of the dryer. The length of the extension is equal to the length of the tee. The tee in the diagram is highlighted in green, and the extension is highlighted in red.