High Efficient fresh water stations FRIWA 50 HE are available with plate heat exchanger either copper welded or full stainless steel. Upon request of the flow sensor hot water is pumped from the buffer tank through the heat exchanger. On the reverse-flow-through principle the hot water hygienically is heated up only as much as required. A constant hot water temperature is guraranteed via electronic control of the loading pump. A calcination protection is given by the intelligent design and construction of the different components. An integrated dirt trap valve on the cold water side protects the heat exchanger against impurity. Stop and flush valves assure a high level of usability and an easy maintenance. Special wall brackets are integrated for a quick and simple wall fastening. FRIWA 40 HE is completely premonuted the station has just to be connected with the buffer tank and the drinking water circuit.
specifications
|
FRIWA 30 HE
|
|
width
|
mm |
525
|
height
|
mm |
865
|
depth
|
mm |
280
|
connections heating side
|
inch |
Rp 1″
|
connections DHW side
|
inch |
Rp ¾″
|
max. operating pressure heating side
|
bar |
3
|
max. operating pressure DHW side
|
bar |
10
|
max. operating temperature heating side
|
°C |
95
|
max. operating temperature DHW side
|
°C |
70
|
pressure loss DHW side at nomal power
|
bar |
0,6
|
max. pressure loss heating pipes
|
mbar |
50
|
output data
|
FRIWA 50 HE
|
|
nominal power at 10-60, mixed to 45°C /65°C (CW-HW/HF)
|
kW |
157
|
tap output at nominal power
|
L/min |
64
|
NL number at nominal output
|
22
|
|
materials
|
FRIWA 50 HE
|
|
housing, connecting components
|
CW617N (2.0402)
|
|
plate heat exchanger
|
stainless steel (1.4401), CU soldered, stainless steel soldered
|
|
piping on heating side
|
copper
|
|
piping on DHW side
|
stainless steel (1.4401)
|
|
seals
|
AFM
|
|
insulation
|
EPM foam 0.038 W/mK
|