7 Commissioning [specialist]
2017/07
99640141x-mub-en - V02
19
The following diagram illustrates the maximum withdrawal flow rate at a domestic hot water
temperature of 45 °C at the tap, after the addition of cold water of 10 °C.
The domestic hot water temperature set at the controller is of 60 °C.
W
ithdr
aw
al
fl
ow
ra
te
[l/
m
in]
Pow
er
[k
W
]
Domestic hot water temperature: 45 °C,
after heating to 60 °C and addition of cold water (10 °C)
Boundary conditions: Cold water temperature: 10 °C
Example 1
Domestic hot water temperature at the controller: 60 °C
Temperature in the buffer tank: 70 °C
DHW module: max. withdrawal flow rate: 31 l/min, heat transfer capacity: 77 kW
Example 2
Domestic hot water temperature at the controller: 60 °C
Maximum withdrawal flow rate: 21 l/min
DHW module: temperature in the buffer tank: ~65 °C, heat transfer capacity: 53 kW
FriwaMini
Temperature of the buffer tank
Example 1
Example 2