ᐅ Flow rate setting for underfloor heating at the manifold in liters per minute (L/min)
Created on: 27 Dec 2022 12:53
V
vaderle
Hello everyone,
I have set a desired temperature of 21.5°C (70.7°F) on my heating system (air-to-water heat pump) at the bottom. The room thermostats are all fully open (set to 33°C (91.4°F)).
So far so good. Almost all rooms reach 21.5°C (70.7°F). Only in the bedroom (upstairs) does it reach a maximum of 20.7°C (69.3°F). Now I wanted to increase the flow rate slightly at the distribution manifold. According to my online research, you only need to turn the red cap on the flow indicator to increase or decrease the flow. This should allow more warm water to reach the room and raise the temperature.
However, below the flow indicator, I found a sticker from the heating installer. The sticker says “Warning! The flow indicator serves only to shut off the heating circuits.” (see the photo)
Does this mean that fine adjustments cannot be made there at all? Where else can the flow rate in liters per minute be adjusted?
Does this mean that fine adjustments cannot be made there at all? Where else can the flow rate in liters per minute be adjusted?
I have set a desired temperature of 21.5°C (70.7°F) on my heating system (air-to-water heat pump) at the bottom. The room thermostats are all fully open (set to 33°C (91.4°F)).
So far so good. Almost all rooms reach 21.5°C (70.7°F). Only in the bedroom (upstairs) does it reach a maximum of 20.7°C (69.3°F). Now I wanted to increase the flow rate slightly at the distribution manifold. According to my online research, you only need to turn the red cap on the flow indicator to increase or decrease the flow. This should allow more warm water to reach the room and raise the temperature.
However, below the flow indicator, I found a sticker from the heating installer. The sticker says “Warning! The flow indicator serves only to shut off the heating circuits.” (see the photo)
Does this mean that fine adjustments cannot be made there at all? Where else can the flow rate in liters per minute be adjusted?
Does this mean that fine adjustments cannot be made there at all? Where else can the flow rate in liters per minute be adjusted?
halmi schrieb:
How many times do I have to say it… valves 1, 2, and 3 should not be adjusted. Only valve 4 is the one you need.Understood. But I’ve already accidentally adjusted the valve at the bedroom (position 1). I just want to know if by doing that, I have unintentionally closed a circuit. If that’s the case, adjusting valve 4 wouldn’t help me.And no one has been able to tell me how to tell if I have accidentally closed a circuit by adjusting valve 1.
Of course, I won’t adjust any other circuits (position 1) anymore. That’s noted.
R
RotorMotor5 Jan 2023 22:06Is the temperature comfortable in the room?
If yes, don’t change anything. If it’s too warm, turn it down. If it’s too cold, check if the loop is fully open, and if not, close other rooms.
If yes, don’t change anything. If it’s too warm, turn it down. If it’s too cold, check if the loop is fully open, and if not, close other rooms.
RotorMotor schrieb:
Is the temperature comfortable in the room?
If yes, don’t change anything. If it’s too warm, turn it down; if it’s too cold, check if the circuit is fully open, and otherwise close valves in other rooms. And does checking if the circuit is fully open mean turning it counterclockwise at position 1? Or increasing the flow rate at position 4?
halmi schrieb:
You haven’t restricted anything there because you can’t restrict anything there. You can turn the little dial to make the scale, for example, visible facing forward.This statement is exactly what helps me now. So at position 1, you can only turn it to make the scale visible. That way, I know I haven’t accidentally closed a heating circuit.
However, I find the Roth sticker misleading. It says, "Flow indicator is only for shutting off the heating circuits." As a layperson, I would interpret that to mean that turning the scale can close the heating circuit.