22
Technical data
Transmission power with different flow and outlet temperatures:
Rated power
70 kW
Min. flow
2 l/min
Max. flow for 65 °C tank and 45 °C outlet temperature
30 l/min
Max. permissible flow
30 l/min
Plate heat exchanger volumes, primary/secondary
1,28 l each
Max. operating pressure primary side (tank water)
4 bar
Max. operating pressure secondary side (cold water)
6 bar
Max. permissible water hammer pressure
15 bar
Rated temperatures primary flow / return
65 / 20 °C
Rated temperatures secondary flow / return
45 / 10 °C
Max. operating temperature primary/secondary
90 °C
Setting range for hot water temperature
40 - 70 °C
Pressure loss secondary side (Kv value)
2,60 m
3
/h
Connection thread primary, secondary. circulation pipe
G ¾“ external thread
DL-Buslast
10%
Maximum electrical rating, pump + controller
80 W
Materials
(all parts in contact with potable water comply with DVGW/W270)
Fittings
Brass CW617N
Heat exchanger
Stainless steel 1.4401, copper
soldered
Pipes
Copper 99,96%
Seal material
PTFE, EPDM, Klingersil C-4324
Pump primary circuit
Grundfos UPM3 15-70 130
Valve
ESBE SLB123
Volume flow sensor
Huba Type 200 2-32l/min
Primary sensor
PT1000
Controller
FWR33
Pump
mode
Buffer flow
[°C]
Return [°C] Cold water
supply [°C]
Hot water outlet
[°C]
Power [kW] Flow [l/h]
100%
59,3
25,0
10,3
45,0
68,7
1700
100%
55,4
27,0
10,3
45,0
56,5
1400
100%
50,3
33,2
10,3
45,4
34,7
850
100%
50,2
25,2
10,3
40,3
50,6
1450
