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GE556-2
GE556Y403/406 heat interface
units with electronic regulation
and adjustable tail pieces
The GE556Y403 and GE556Y406 heat interface units (HIU) allow the metering of heat energy consumption for heating and
the production of DHW (Domestic Hot Water) in modern autonomous systems with centralised heat production (e.g. district
heating).
The management of the HIUs parameters is completely electronic.
This allows significant energy savings, minimizing the flow demand from the primary circuit and reducing the return temperature.
The various parameters can be set via remote control which also performs the function of programmable chronothermostat.
Giacomini S.p.A.
Via per Alzo 39, 28017 San Maurizio d'Opaglio (NO) Italia
consulenza.prodotti@giacomini.com
+39 0322 923372 - giacomini.com
Datasheet/Instruction
1071EN 05/2022
047U59108
1
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Summary of Contents for Giacomini GE556Y403
- Page 1 047U59108 The GE556Y403 and GE556Y406 heat interface units (HIU) allow the metering of heat energy consumption for heating and the production of DHW (Domestic Hot Water) in modern autonomous systems with centralised heat production (e.g. district heating).
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Page 2: Technical Data
• Heat exchanger and fully insulated piping. • WRAS certified components for the domestic water circuit. • Painted sheet metal cabinet (RAL9010), with key locking. Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com... - Page 3 Domestic cold water inlet Domestic cold water outlet (optional) Domestic hot water outlet Primary inlet Primary outlet Heating return Heating delivery Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com...
- Page 4 • R473M: thermo-electro actuator for 2-way zone valve for thermal safety on the heating circuit GE551Y133 R473M GE551Y134 GE550Y010 GE552-2 GE552 GE500Y258 Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com...
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Page 5: Operation
Flow switch Brass spacer for thermal energy meter Brass spacer for domestic hot water Brass spacer for domestic cold water Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com... - Page 6 A hot water meter can be installed Instead of the brass spacer. Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com...
- Page 7 NOTE. For the other operating modes of the remote control, refer to the corresponding instruction sheet. Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com...
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Page 8: Preheating Function
°C 4/10 Screed heating timing final phase days NOTE. To enable parameter programming, please refer to the remote-control manual. Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com... - Page 9 1) circulator not powered: check the cable connection. NO LED 2) LED damaged: check whether the circulator is working. 3) electronics damaged: replace the circulator Circulator characteristics Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com...
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Page 10: Electrical Connections
• The optional safety thermostat (K373/K373I), is connected to terminals 39-40 of the electronic board. • Multizone additional control to terminals 21-22 on the electronic board (additional thermostats to be ordered separately). Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com... - Page 11 Complete the installation by tightening the HIU nuts on the template connections (max. torque 60 Nm) using a backup spanner. Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com...
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Page 12: Primary Circuit
T OUTLET SPEED [l/h] [kW] [°C] [l/h] [°C] Diagram of the heating circulator - Circulator at constant ∆p MAX. 1200 1200 Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com... - Page 13 Hydraulic data for domestic water circuit 1050 1020 47,5 1000 1200 1000 1200 1200 1450 1320 1100 1070 1440 58,8 1200 Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com...
- Page 14 9 kW ∆T (45-40 °C) Q=1500 l/h 9 kW ∆T (35-30 °C) Q=1500 l/h Primary delivery temp. [°C] Low temperature Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com...
- Page 15 T OUTLET SPEED [l/h] [kW] [°C] [l/h] [°C] Diagram of the heating circulator - Circulator at constant ∆p MAX. 1200 1200 Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com...
- Page 16 Hydraulic data for domestic water circuit 1020 47,5 23,5 1020 23,5 1200 1050 24,2 1040 1320 61,5 1160 24,6 1150 1440 1280 Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com...
- Page 17 9 kW ∆T (45-40 °C) Q=1500 l/h 9 kW ∆T (35-30 °C) Q=1500 l/h Primary delivery temp. [°C] Low temperature Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com...
- Page 18 Heating return Domestic cold water outlet (optional) Heating delivery Domestic hot water outlet Fairleads Primary inlet Primary outlet Dimensions in mm Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com...
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Page 19: Reference Standards
• ErP Directive 2009/125/CE WRAS certification REF. IN “COMPONENTS” PARAGRAPH COMPONENT CERTIFICATE NUMBER Gaskets 1509514 Flow switch 2111302 Heat exchanger 1909083 Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia consulenza.prodotti@giacomini.com +39 0322 923372 - giacomini.com... - Page 20 Umwelt oder die illegale Entsorgung des Produkts ist strafbar. Safety Warning. Installation, commissioning and periodical maintenance of the product Additional information. For more information, go to giacomini.com or contact our technical must be carried out by qualified operators in compliance with national regulations and/or local assistance service.
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