ð
Temperature in the buffer tank: ~70 °C,
transmission capacity: 145 kW
EFS 50
ð
Temperature in the buffer tank: ~60 °C,
transmission capacity: 145 kW
The following diagram shows the maximum dispensing medium flow rate if the hot water temperature is
45 °C at the dispensing connection, after being mixed with cold water with a temperature of 10 °C. The hot
water temperature set on the controller is 60 °C.
B
0
10
20
30
40
50
60
A
0
20
40
60
80
100
120
140
70 °C
90 °C
80 °C
65 °C
Friwa EFS 35
80
90
100
110
120
70
260
280
300
160
180
200
220
240
2
1
Friwa EFS 50
Fig. 14: Maximum dispensing medium flow rate
A: Dispensing medium flow rate [l/min]
B: Power [kW]
1: Hot water temperature:
45°C after heating to 60°C and mixing in cold
water (10°C)
2: Buffer storage temperature
Boundary conditions:
Cold water temperature: 10 °C,
Example 1
Hot water temperature on the controller: 60 °C
Temperature in the buffer tank: 70 °C
EFS 35
ð
Maximum dispensing medium flow rate: 53 l/
min, transmission capacity: 129 kW
EFS 50
ð
Maximum dispensing medium flow rate: 82 l/
min, transmission capacity: 200 kW
Example 2
Hot water temperature on the controller: 60 °C
Maximum dispensing medium flow rate: 60 l/min
EFS 35
ð
Temperature in the buffer tank: ~75 °C,
transmission capacity: 155 kW
EFS 50
ð
Temperature in the buffer tank: ~65 °C,
transmission capacity: 155 kW
21
