Electrical flow heater BFU 3, 6 and 9 kW
Circulation electric heater is basically intended for installation with a heat pump to heat individual/detached buildings. As it provides extra heating, it is mostly installed with air/water heat pumps. At low temperatures (e.g. -15°C), the air/water heat pump cannot provide the heating requirements of the building. Therefore, a circulation electric heater is used for extra heating to the desired temperature. The three-level heater uses 3, 6, or 9 kW of heating power, depending on the heating requirements.
Circulation electric heater is fitted with overheat protection and a contactor for external control of the three power levels. The electric module uses the principle of a heater immersed into a water tank or an electric heater without domestic hot water. Stainless steel spirals and the tank are made of acid-resistant steel that ensures a long useful life.
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- 3 level extra heating source
- 3-6-9 kW of heating power
- Used mostly with air/water heat pumps
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Technical characteristics of the BFU electrical flow heater
|
| Height |
mm |
560 |
| Width |
mm |
240 |
| Depth |
mm |
135 |
| Cylinder volume |
l |
1,6 |
| Circulation heater power |
kW |
3/6/9 |
| Electrical protection level |
/ |
IP44 |
| Max. allowed water pressure |
MPa/bar |
0,25/25 |
| Power supply |
/ |
400 V AC 3ph 50Hz |
| Min. water temperature |
°C |
10 |
| Maks. input water temperature |
°C |
58 |
| Switch-off temperature |
°C |
9 |
| Minimum water flow |
m3/h |
0,45 |
| Maks. working pressure |
bar |
7 |
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