Metro Therm METROAIR AQUA HPM, Руководство пользователя

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3.8 Requirements for the water circuit
The water circuit must be constructed in accordance with local norms and standards. The water
used must be of drinking water quality when charged to the system. Material compatibility in
the whole system must be ensured.
The pipe sizes for on-site installation shall be defined based on the available water pressure
as well as the expected pressure loss in the pipe system. The water circuit shall be designed
according to the drinking water installation regulative in force. Incorrect material combinations
in the water circuit can lead to corrosion damage due to galva-nic corrosion. This requires special
attention when using galvanized components and components that contain copper.
As for all pressurized vessels the heat pump associated water tank has to have an approved
safety valve (pressure setting depending on local rules and regulations) and a non return/
check valve on the cold water inlet. Max. working pressure is 1.0 MPa (10 bar) and max. inlet
temperature is 65°C. Dirt must be avoided in the pipe system (if necessary flush the pipes before
the heat pump is connected)!