Giacomini GE556-5 User And Maintenance Manual
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Giacomini GE556-5 User And Maintenance Manual

Modular heat interface unit
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U
SER AND MAINTENANCE GUIDE
0858EN July 2020
M
H
I
ODULAR
EAT
NTERFACE
GE556-5
MODULAR HEAT INTERFACE UNIT
USER AND MAINTENANCE GUIDE
U
NIT
GE556 5
EXAMPLES OF POSSIBLE LAYOUTS
I

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  • Page 1 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 MODULAR HEAT INTERFACE UNIT USER AND MAINTENANCE GUIDE GE556 5 EXAMPLES OF POSSIBLE LAYOUTS...
  • Page 2 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 Index 1. General information ........................................... 1 1.1 Warnings ............................................ 1 1.2 Versions and product codes ..................................2 1.3 Completion codes ........................................4 1.4 Main features ........................................... 5 1.5 Technical data ......................................... 5 1.5.1 Technical data of mandatory components .........................
  • Page 3 8.3.2 GE556-5 with low-temperature kit GE556Y546 ......................36 8.4 Heating circuit water temperature too high ............................37 8.4.1 GE556-5 with high temperature kit GE556Y541, GE556Y542, GE556Y543 ..........37 8.4.2 GE556-5 with low-temperature kit GE556Y546 ......................37 8.5 Heating circuit not working ................................... 37 8.5.1 GE556-5 with high temperature kit GE556Y541, GE556Y542, GE556Y543 ..........

  • Page 4: General Information

    When kit GE556Y522 is included, the thermostatic control provides the lowest return temperature during hot water production. HIUs GE556-5 are modular units where multiple components can be installed to create a HIU based on installation needs (control of high or low temperature heating with or without balancing valves, control of hot and/or cold domestic water, etc.).
  • Page 5 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 1.2 Versions and product codes Starting from basic codes GE556Y501/502, HIUs can be con gured by adding various mandatory product codes (total of 5 categories) and possibly a few optionals or completion codes.

  • Page 6: Completion Codes

    SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 1.3 Completion codes GE551Y078 GE551Y079 GE500Y254 Template with 6 shut-o valves, Lowered template with 6 shut-o valves, Additional DCW valve, for GE556Y501 or GE556Y502 HIU for GE556Y501 or GE556Y502 HIU...
  • Page 7 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 Examples of possible con gurations Contact our sales back o ce to purchase the product codes required for the desired con guration. Example 1, purchase code: SM556Y04929 The HIU shown includes the following components:...

  • Page 8: Main Features

    SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 1.4 Main features • Hydraulic connections: 3/4”M ISO228 • Insulated heat exchanger for instant production of DHW with 316-stainless steel plates, copper brazing, power up to 50 kW. • Mechanical priority valve for domestic water production.
  • Page 9 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 1.5.1 Technical data of mandatory components Basic codes GE556Y501, GE556Y502 DOMESTIC WATER CIRCUIT OPTIONALS PRIMARY SECONDARY BASIC Control CIRCUIT CIRCUIT Heat exchangers Insulation Other optionals components GE556Y501 GE556Y511 GE556Y521 GE556Y531...
  • Page 10 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 Domestic water circuit: control components DOMESTIC WATER CIRCUIT OPTIONALS PRIMARY SECONDARY BASIC Control CIRCUIT CIRCUIT Heat exchangers Insulation Other optionals GE556Y521, GE556Y522 components GE556Y501 GE556Y511 GE556Y521 GE556Y531 GE556Y541 GE556Y551 GE556Y561...
  • Page 11 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 Secondary circuit DOMESTIC WATER CIRCUIT OPTIONALS PRIMARY SECONDARY BASIC Control CIRCUIT CIRCUIT Heat exchangers Insulation Other optionals GE556Y541, GE556Y542, GE556Y543, GE556Y546 components GE556Y501 GE556Y511 GE556Y521 GE556Y531 GE556Y541 GE556Y551 GE556Y561 Primary...
  • Page 12 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 1.5.2 Technical data of optional components Insulation GE556Y551 DOMESTIC WATER CIRCUIT OPTIONALS PRIMARY SECONDARY BASIC Control CIRCUIT CIRCUIT Heat exchangers Insulation Other optionals components GE556Y501 GE556Y511 GE556Y521 GE556Y531 GE556Y541 GE556Y551...
  • Page 13 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 Additional unit output for domestic cold water DOMESTIC WATER CIRCUIT OPTIONALS PRIMARY SECONDARY BASIC Control CIRCUIT CIRCUIT Heat exchangers Insulation Other optionals GE556Y561 components GE556Y501 GE556Y511 GE556Y521 GE556Y531 GE556Y541 GE556Y551...
  • Page 14 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 Unit output for domestic water recirculation DOMESTIC WATER CIRCUIT OPTIONALS PRIMARY SECONDARY BASIC Control CIRCUIT CIRCUIT Heat exchangers Insulation Other optionals GE556Y562 (w/ circulator), GE556Y563 (w/o circulator) components GE556Y501 GE556Y511...
  • Page 15 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 Thermostatic by-pass GE556Y566 DOMESTIC WATER CIRCUIT OPTIONALS PRIMARY SECONDARY BASIC Control CIRCUIT CIRCUIT Heat exchangers Insulation Other optionals components GE556Y501 GE556Y511 GE556Y521 GE556Y531 GE556Y541 GE556Y551 GE556Y561 Primary 16-plate DHW production...
  • Page 16 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 System drain cocks GE556Y569 DOMESTIC WATER CIRCUIT OPTIONALS PRIMARY SECONDARY BASIC Control CIRCUIT CIRCUIT Heat exchangers Insulation Other optionals components GE556Y501 GE556Y511 GE556Y521 GE556Y531 GE556Y541 GE556Y551 GE556Y561 Primary 16-plate DHW production...
  • Page 17 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 Metal cover GE551Y170 GE551Y078 GE551Y079 GE500Y254 Template with 6 shut-o valves, Lowered template with 6 shut-o valves, Additional DCW valve, for GE556Y501 or GE556Y502 HIU for GE556Y501 or GE556Y502 HIU...
  • Page 18 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 1.6 Dimensions Cover GE551Y170 + template GE551Y078 Insulation GE556Y551 + template GE551Y078 HIU GE556Y502 accessories included HIU GE556Y501 accessories included + template GE551Y079 + template GE551Y079 Dimensions in mm Legend...
  • Page 19 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 2. Components Legend Filter Probe housing for thermal energy meter Probe housing for di erential pressure control valve Mechanical priority valve Manual air vent valve Brass spacer for thermal energy meter...

  • Page 20: Operation

    SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 3. Operation When recirculation kit (GE556Y562/563) is included, install the additional unit output for domestic cold water (GE556Y561) and reverse the domestic cold water inlet/outlet ows (A and B) as shown in the diagram on the side.
  • Page 21 0858EN July 2020 ODULAR NTERFACE GE556-5 PRIMARY CIRCUIT: inlet: (D) and outlet (E). The primary circuit includes two zones: one for heating control and the other for domestic hot water production. The primary circuit includes a lter, a housing to install the probe of the di erential pressure control valve, a housing to install the delivery probe of the thermal energy meter (if installed) (Components - Ref.

  • Page 22: Hydraulic Characteristics

    0858EN July 2020 ODULAR NTERFACE GE556-5 4. Hydraulic characteristics Data shown below apply for di erential pressure control valve set on “H” 5 (corresponding to 0,5 bar and 50 kPa). For proper operation of HIU, the di erential pressure control valve cannot be set on values higher than 0,5 bar or 50 kPa (factory setting).
  • Page 23 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 4.1.3 Secondary circuit - DHW production Kv = 0,8 10000 1000 1000 10000 Q [l/h] 4.2 Heating 4.2.1 High-temperature heating with kit GE556Y542 (static balancing valve) 10000 1000 1000 10000...
  • Page 24 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 4.2.2 High-temperature heating with kit GE556Y543 (presetting valve) 1 2 3 4 5 6 7 10000 1000 1000 10000 Q [l/h] Presetting valve position (Fully open) 0.14 0.26 0.29 0.34 0.38...

  • Page 25: Operational Data

    0858EN July 2020 ODULAR NTERFACE GE556-5 5. Operational data Data shown below apply for di erential pressure control valve set on “H” 5 (corresponding to 0,5 bar and 50 kPa). For proper operation of HIU, the di erential pressure control valve of kit GE556Y532 cannot be set on values higher than 0,5 bar (factory setting).
  • Page 26 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 5.1.3 DHW production with 36-plate exchanger and 5.2 Heating 18 l/min ow rate regulator (GE556Y515, GE556Y516) 5.2.1 High-temperature heating Domestic hot water Primary circuit working conditions Nominal ow rate of high-temperature heating circuit: (Δt 10-50 °C)

  • Page 27: Installation

    SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 6. Installation Due to vibrations during transport, ALL hydraulic connections must be checked and tightened before installation and commissioning. Before installing the HIU on the template it is necessary to wash all the pipes.
  • Page 28 0858EN July 2020 ODULAR NTERFACE GE556-5 Fit the template on the wall using screw anchors t for the type of wall and weight of the equipment. Install the ball valves in the template holes and t them with the special washers using a wrench.
  • Page 29 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 6.6 Start-up Completely open the Completely open the Completely open the Remove the possible manual air vent valve possible static manual air vent valve thermo-electric actua- (Rif.3) balancing valve (Rif.3) tor from the valve body (Rif.1)
  • Page 30 0858EN July 2020 ODULAR NTERFACE GE556-5 6.7 Installation of water and energy meters Water meters and thermal energy meters must be installed according to the supplier’s instructions to replace the corresponding spacers on the HIU (Components - Ref. 6, 12, 15).
  • Page 31 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 7. HIU settings 7.1 Domestic hot water temperature setting (kit GE556Y522) Set the DHW temperature using the thermostatic head. Temperature range 20÷70 °C - factory calibration 50 °C (Components - Ref. 10).
  • Page 32 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 Constant di erential pressure Δp-c (I, II, III) [SUGGESTED] Recommended for under oor heating for large-sized pipes or all applications without a variable pipe network curve (e.g. storage charge pumps), as well as single-pipe heating systems with radiators.

  • Page 33: Setting The Control Mode

    SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 Setting the control mode The LED selection of control modes and corresponding pump curves takes place in clockwise succession. • Press the operating button brie y (approx. 1 second). LEDs display the set control mode and pump curve.

  • Page 34: Air Venting

    SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 Air venting • Fill and vent the system correctly. If the pump does not vent automatically: • Activate the pump venting function via the operating button: press and hold for 3 seconds, then release.
  • Page 35 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 7.3 Presetting of di erential pressure control valve R206C (kit GE556Y532) “L” setting (Low) Indicator Qmin Qmax 0,45 position 0,20 1,20 0,35 0,20 1,40 0,20 1,50 0,25 0.20 1,65 0,20...
  • Page 36 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 Example: • Required: 12 l/min • DCW temperature: 10 °C • DHW temperature: 50 °C • Primary outlet temperature: 70 °C Domestic hot water Primary ow rate [l/h] and ow rate and power Primary outlet temperature (DHW 10-50 °C)
  • Page 37 0858EN July 2020 ODULAR NTERFACE GE556-5 To change the setting type (“L” or “H”), follow the steps below: 1) Before presetting, vent the air from the membrane body (refer to 2) Turn the red knob all the way around to set the regulation scale section “Installation”).

  • Page 38: Troubleshooting

    SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 8. Troubleshooting 8.1 Domestic hot water temperature too low • Problem: incorrect thermostatic head setting value for control of domestic hot water temperature. Solution: make sure the setting position of the thermostatic head included with kit GE556Y522 (Components - Ref. 10) corresponds to the required temperature value.
  • Page 39 GE556-5 8.3 Heating circuit water temperature too low 8.3.1 GE556-5 with high-temperature kit GE556Y541, GE556Y542, GE556Y543 • Problem: delivery temperature of primary circuit too low. Solution: check primary temperature on energy meter. The min. temperature must correspond to the value set for HIU sizing.
  • Page 40 GE556-5 8.4 Heating circuit water temperature too high 8.4.1 GE556-5 with high-temperature kit GE556Y541, GE556Y542, GE556Y543 • Problem: delivery temperature of primary circuit too high. Solution: check primary temperature on energy meter. The temperature must comply with the project speci cations. If the value di ers, contact the boiler room manager.
  • Page 41 20 Nm max. torque. Open the shut-o valves on the template and make sure there are no leaks (refer to Inspections and Maintenance for cleaning sequence). 8.8 Problems with domestic water recirculation 8.8.1 GE556-5 with recirculation kit GE556Y562 • Problem: clogged exchanger. Solution: check instant ow rate on recirculation water meter (if included). Make sure the heat exchanger (Components - Ref.11) is not clogged;...

  • Page 42: Recommended Maintenance Operations

    SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 9. Periodical inspections and maintenance State-of-the-art inspections and maintenance carried out on a regular basis as well as using only original spare parts are key for problem-free operation and long-lasting HIUs.
  • Page 43 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 11. Ricambi 11.1 GE556Y501...
  • Page 44 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 11.2 GE556Y502...
  • Page 45 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 11.3 GE556Y511 11.4 GE556Y512 11.5 GE556Y513...
  • Page 46 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 11.6 GE556Y514 11.7 GE556Y515 11.8 GE556Y516...
  • Page 47 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 11.9 GE556Y521 11.10 GE556Y522...
  • Page 48 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 11.11 GE556Y531 11.12 GE556Y532...
  • Page 49 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 11.13 GE556Y541 11.14 GE556Y542 11.15 GE556Y543...
  • Page 50 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 11.16 GE556Y546 11.17 GE556Y551...
  • Page 51 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 11.18 GE556Y561 11.19 GE556Y562 11.20 GE556Y563 11.21 GE556Y566...
  • Page 52 SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 11.22 GE556Y569 11.23 GE551Y078 11.24 GE551Y079...

  • Page 53: Compliance Statements

    SER AND MAINTENANCE GUIDE 0858EN July 2020 ODULAR NTERFACE GE556-5 12. Compliance statements...
  • Page 54 Ablagern in der 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 qualifi ed operators in compliance with national regulations and/or local assistance service.

This manual is also suitable for:

Sm556y04929Sm556y05233Sm556y05336

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