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Stockshed is a UK Stockist and Distributor of Giacomini HIU spare parts for all versions of heat interface units GE556:
GE556-5 Modular Heat Interface Unit (HIU)
GE556-1 Heat Interface Unit (HIU) with double heat-exchanger
GE556-6 Heat Interface Unit (HIU) with electronic regulation and double heat exchanger
GE556-4 Heat Interface Unit (HIU) with differential pressure control valve
GE556-2 Heat Interface Unit (HIU) with electronic regulation
GE556 Standard Heat Interface Unit (HIU)
GE556 Parts Diagram
If the parts you require are not listed please contact us for a quotation.
If you are unsure of the part(s) you require please go to Parts Identification in the main menu to use our free service. We will then respond directly with a quotation and stock availability.