Table of Contents
Advertisement
INSTALLER SETTING
142
General - Water Flow Control
This setting defines how the integrated water circulation pump is controlled.
Select the desired method to control the pump and set the target value if needed.
- Pump Capacity: The pump operates with the capacity set (10~100 %)
- Fixed Flow Rate: The water pump is automatically controlled to maintain the set flow rate.
Individual settings for Heating, Cooling and DHW heating are possible.
- Fixed ΔT: Set the target ΔT (*ΔT = temperature difference between inlet and outlet water
temperature). The water pump is automatically controlled to maintain the set ΔT.
Individual settings for Heating, Cooling and DHW heating are possible.
For radiators the ΔT is typically ~10 K, for Fan coil units ~8 K and for Underfloor
heating system ~5 K are common.
- Optimal Flow Rate: The water pump is automatically controlled at the optimum flow rate
NOTE
The flow rate has a strong impact on the efficiency of the system and also may lead to errors
(CH 14) and flow noise.
The settings should be adjusted only by professional users.
required according to current temperature settings.
Target △T
10 °C
8 °C
5 °C
45 °C
50 °C
(40 °C)
(42 °C)
Remark: In Cooling mode, Target ΔT is fixed at 5 K.
55 °C
60 °C
60 °C
(47 °C)
(55 °C)
(60 °C)
Setpoint Heating
(DHW inlet)
Advertisement
Table of Contents
