Heat pumps; heat pump units with electrically driven compressors for heating or for heating and cooling; terms, definitions and designations; german version EN 255-1:1988— 4 стр.
Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors - Heating mode - Part 1: Terms, definitions and designations; German version EN 255-1:1997— 5 стр.
Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors - Heating mode - Part 1: Terms, definitions and designations; German version EN 255-1:1997— 5 стр.