Ferro Thermostatic Head: 1-4 Radiators Not Heating, 5th Too Hot & Humming - Solutions?

Question

Hello. Please help. I have Ferro heads mounted on radiators. 1 to 4 radiators do not heat. And on 5 it's too hot at home and the radiators are still humming?

Szyszkownik Kilkujadek · Answer

If the installation is not aerated, the pressure is probably too low. Is this a house or a block of flats? If your home and you don't have a central heating pump then forget about the thermostatic heads.

joan-rz · Answer

Single-family house. Central heating pump installed.

Szyszkownik Kilkujadek · Answer

Provide the exact model of these heads. What is your boiler

joan-rz · Answer

Defro boiler with a feeder. Ferro GT 20 heads.

Szyszkownik Kilkujadek · Answer

I will ask again: is there a CO installation in the air? Correct assembly? There was no renovation? Maybe it's dirty inside.

joan-rz · Answer

All radiators are deaerated. I'll explain how it looks. I screw the head into the valve (head set to 5) and from the moment I turn, I can hear the valve closing (I hear the decreasing water flow). I will mark the heads bought together with the valves in the set.

marqqv · Answer

Do you have a thermometer in the rooms? How many degrees do you have Maybe thermostats from 1 to 4 want to lower the temperature and close.

joan-rz · Answer

No, I do not have a thermometer. But as I screw the head in, the valve closes immediately (you can hear the noise in the radiator) and with more and more Screwing the noise stops and soon the radiators are cold

marqqv · Answer

Table of thermostatic head settings
0-0 ° C
* ~ 7 ° C
1 ~ 12 ° C
2 ~ 16 ° C
3 ~ 20 ° C
4 ~ 24 ° C
5 ~ 28 ° C

If the heads are in the room before turning on the valve, then you may have the case that you have above 24 ° C in the apartment and the thermostat closes the valve on the radiator when installing (turning off), as the room temperature drops below 24 ° C, it will start heating at "4" and similarly at lower ranges. And it's rustling because it's closed. Start with the room temperature.

joan-rz · Answer

The temperature in the rooms (closed) 26.8. And what's next. As the reduction on the head (e.g. on 3) the radiators will be cold immediately.

marqqv · Answer

Well, give it to 4 and it should keep the temperature around 23-25 degrees Celsius. That's why you put the thermostats on. I think If you're almost 27 degrees, the thermostat must close the head until the temperature drops to 24 and now it turns off the radiator and then how soon. will fall again it will start to heat.

joan-rz · Answer

Welcome back. Unfortunately, yesterday I turned the head off on a snowflake. Today (in the room is 24 *), unscrew the head on 4 and silence. Only 5 can be heard that it lets in hot water. On other numbers it does not work. As if the needle in the valve was too long and when screwing the head closes the valve immediately.

marqqv · Answer

You write that a valve / head set is purchased. If so, then it must work together. As it happens, as you write, go to this store with a complaint or being with them pick up a set turn and check how it works, e.g. blowing and tightening.

Added after 4 [minutes]:

joan-rz wrote:
Today (in the room is 24 *) unscrew the head 4 and silence

because it is still 24 degrees lower then it will start at 4. At 24 * the valve is still closed at 4 by. the table is so good. The temperature is required in the room.

Adam-T · Answer

A colleague above wrote approximate ranges of head adjustment. Secondly, how can you be sure that the thermometer is showing you well? Maybe cheating 1-2 degrees? If you want to check if the heads work to lower the room temperature much harder and see how you can set e.g. 4 what temperature will keep you in the room.

marqqv · Answer

It is cool if you have a small room with a radiator and a problem head from the subject, then close the door to not cool the whole house, turn the snowflake on the thermostat, open the window, ventilate until the temperature drops around 10 * and then start turning the thermostat and you will see when at which digit it starts to heat.

Tomekzxcvbnmmn · Answer

>>16826623 Is the problem solved? I have exactly the same, 3 heads work fine and 5 don't, I don't know what to do

Ferro Thermostatic Head: 1-4 Radiators Not Heating, 5th Too Hot & Humming - Solutions?

Post #1

Post #2

Post #3

Post #4

Post #5

Post #6

Post #7

Post #8

Post #9

Post #10

Post #11

Post #12

Post #13

Post #14

Post #15

Post #16

Post #17

Topic summary