7 Commissioning [specialist]
2014/11
99640766x-mub-en – V03
21
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
FriwaMega: maximum withdrawal flow rate: 133 l/min, transfer capacity: 324 kW
Example 2
Domestic hot water temperature at the controller: 60 °C
Maximum withdrawal flow rate: 150 l/min
FriwaMega: temperature in the buffer tank: ~75 °C, transfer capacity: ~365 kW
Temperature of the buffer tank
Example 2
Example 1
FriwaMega