Automatic refilling unit for heating and cooling systems, NA225
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| The NA225-A refilling unit with DVGW tested mechanical disconnector enables permanent connection of closed heating and cooling systems to the drinking water network. It combines a mechanical disconnector and check valve in one appliance. The refilling unit maintains system pressure between pre-determined upper and lower limits in closed heating and cooling circuits. It prevents backflow, back syphonage or back pressures of heating or cooling water into the drinking water network and enables limitation of the refilling period. In addition, it prevents generation of steam in a system caused by pressure loss. |
| For closed hydronic heating or cooling systems. |
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| Approvals |
Components DVGW approved |
| Max. media temperature |
40 oC |
| Additional description |
Also see product data sheet. |
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