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U
ser and maintenance manUal
0850EN May 2020
H
igH or low temperature
ge556Y320-321-322-323
control
ge556-4
series
GE556Y320 - GE556Y321
(High temperature)
Index
1. General information ....................................................................................................................................................... 1
1.1 Warnings ........................................................................................................................................................ 1
1.2 Versions and product codes ............................................................................................................................. 1
1.3 Completion codes ......................................................................................................................................... 2
1.4 Main characteristics ....................................................................................................................................... 2
1.5 Technical data ................................................................................................................................................ 2
1.6 Dimensions .................................................................................................................................................... 3
2. Operation ....................................................................................................................................................................... 4
2.1 GE556Y320-GE556Y321 operation ................................................................................................................. 4
2.1.1 GE556Y320-GE556Y321 operational data ..................................................................................... 6
2.1.2 GE556Y320-GE556Y321 energy saving characteristics .................................................................. 8
2.2 GE556Y322-GE556Y323 operation .................................................................................................................. 10
2.2.1 GE556Y322-GE556Y323 operational data ...................................................................................... 12
2.2.2 GE556Y322-GE556Y323 energy saving characteristics ................................................................. 14
3. Components .................................................................................................................................................................. 16
4. Installation ......................................................................................................................................................................... 17
4.1 Unpacking ..................................................................................................................................................... 17
4.2 Installation set-up ............................................................................................................................................ 17
4.3 Hydraulic system precautions ........................................................................................................................ 17
4.4 Electric system precautions .............................................................................................................................. 17
4.5 Template and HIU installation ....................................................................................................................
4.6 Start-up ............................................................................................................................................................ 19
4.6.1 GE556Y320-GE556Y321 start-up ................................................................................................... 19
4.6.2 GE556Y322-GE556Y323 start-up ................................................................................................... 20
Hiu
s witH tHermostatic
GE556Y322 - GE556Y323
(Low temperature)
17
I
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Table of Contents
Related Manuals for Giacomini GE556-4 Series
Summary of Contents for Giacomini GE556-4 Series
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Page 1: Table Of Contents
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series GE556Y320 - GE556Y321 GE556Y322 - GE556Y323 (High temperature) (Low temperature) Index 1. General information ............................... 1 1.1 Warnings ................................ 1 1.2 Versions and product codes ..........................1 1.3 Completion codes ............................ - Page 2 ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 4.7 Flow and energy meter installation ........................21 4.8 HIU electric connections ........................... 4.9 Thermostat electric connections ........................21 4.9.1 General warnings ........................... 21 4.9.2 Positioning of thermostat ......................
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Page 3: General Information
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 1. General information GE556Y320, 321, 322 and 323 HIUs enable metering thermal energy consumptions when heating and the production of Domestic Hot Water (DHW) in modern autonomous systems with heat centralized production (eg. teleheating). HIUs are controlled thermostatically by means of a 3-way priority valve. -
Page 4: Completion Codes
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 1.3 Completion codes The components listed below may be installed on every HIU: • Thermal energy meter series GE552 • Domestic Hot Water meter series GE552-2 •... -
Page 5: Dimensions
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 1.6 Dimensions GE556Y320-321 HIUs GE551Y075 templates Legend X: Cable cover A: Domestic Cold Water inlet B: Domestic Cold Water outlet C: Domestic Hot Water outlet D: Primary inlet E: Primary outlet F: Heating delivery circuit... -
Page 6: Operation
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 2. Operation 2.1 GE556Y320-GE556Y321 operation Legend Differential pressure control Heat exchanger Motorized 3-way priority valve valve (DPC) Thermostatic head for Brass spacer for DCW flow Differential pressure probe-holder temperature control of meter... - Page 7 ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series Primary circuit Inlet (D) and return (E). The primary circuit includes a by-pass, an inspectionable filter, a differential pressure probe-holder, a motorized 3-way priority valve, an automatic air vent valve, a heat exchanger, a pressure gauge, a minimum pressure switch, a thermostatic head to control the sanitary water temperature and a differential pressure control valve (DPC).
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Page 8: Ge556Y320-Ge556Y321 Operational Data
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 2.1.1 GE556Y320-GE556Y321 operational data Note. Operational data valid for differential pressure of the control valve set at 50 kPa. Primary circuit Kv = 1,68 Kv = 1,83 Kv = 1,64 10000 10000... - Page 9 ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series DCW production Kv = 6,20 10000 1000 1000 10000 Q [l/h] Domestic Cold Water circuit (DCW) DHW production Domestic hot water GE556Y320 Domestic hot water GE556Y321 Primary circuit working conditions Primary circuit working conditions...
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Page 10: Ge556Y320-Ge556Y321 Energy Saving Characteristics
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 2.1.2 GE556Y320-GE556Y321 energy saving characteristics Hot water primary circuit flow based on DHW flow at 45 °C 30 plate model Hot water primary circuit flow based on DHW flow at 50 °C 30 plates model Hot water primary circuit flow based on DHW flow at 55 °C 30 plates model... - Page 11 ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series Hot water primary circuit flow based on DHW flow at 45 °C 40 plate model Hot water primary circuit flow based on DHW flow at 50 °C 40 plate model Hot water primary circuit flow based on DHW flow at 55 °C 40 plate model...
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Page 12: Ge556Y322-Ge556Y323 Operation
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 2.2 GE556Y322-GE556Y323 operation Legend Differential pressure control Heat exchanger Motorized 3-way priority valve valve (DPC) Brass spacer for DCW flow Thermostatic head for sanitary Differential pressure probe-holder side temperature control meter... - Page 13 ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series Primary circuit Inlet (D) and return (E). The primary circuit includes a by-pass, an inspectionable filter, a differential pressure probe-holder, a motorized 3-way priority valve, an automatic air vent valve, a heat exchanger, a pressure gauge, a minimum pressure switch, a thermostatic head to control the sanitary water temperature and a differential pressure control valve (DPC).
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Page 14: Ge556Y322-Ge556Y323 Operational Data
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 2.2.1 GE556Y322-GE556Y323 operational data Note. Operational data valid when setting the differential pressure control valve at 50 kPa. Primary circuit Kv = 1,33 Kv = 1,68 Kv = 1,83 10000 10000... - Page 15 ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series DCW production Kv = 6,20 10000 1000 1000 10000 Q [l/h] Domestic Cold Water circuit (DCW) DHW production Domestic hot water GE556Y320 Domestic hot water GE556Y321 Primary circuit working conditions Primary circuit working conditions...
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Page 16: Ge556Y322-Ge556Y323 Energy Saving Characteristics
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 2.2.2 GE556Y322-GE556Y323 energy saving characteristics Hot water primary circuit flow rate based on DHW flow at 45 °C 30 plate model Hot water primary circuit flow rate based on DHW flow at 50 °C 30 plate model Hot water primary circuit flow rate based on DHW flow at 55 °C 30 plate model... - Page 17 ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series Hot water primary circuit flow rate based on DHW flow at 45 °C 40 plate model Hot water primary circuit flow rate based on DHW flow at 50 °C 40 plate model Hot water primary circuit flow rate based on DHW flow at 55 °C 40 plate model...
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Page 18: Components
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 3. Components GE556Y320-GE556Y321 GE556Y322-GE556Y323 Legend Legend 1 Housing for thermal en. met. unit temp. probe 1 Housing for thermal en. met. unit temp. probe 2 Filter 2 Filter 3 Differential pressure probe-holder... -
Page 19: Installation
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 4. Installation 4.1 Unpacking • Remove the shipping packing, make sure the product is not damaged and that delivery has been carried out according to the agreed terms and conditions. - Page 20 ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series Install the GE551Y075 template on the wall using screw anchors fit for the type of wall and equipment weight (A). Install the ball valves in the corresponding template holes and tighten them with a wrench using the locknut.
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Page 21: Start-Up
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 4.6 Start-up 4.6.1 GE556Y320-GE556Y321 start-up Manually open the 3-way valve, forcing the white actuator indicator downwards. ATTENTION Once the circuit is lled, reactivate the actuator automatic operation by Completely open the static... -
Page 22: Ge556Y322-Ge556Y323 Start-Up
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 4.6.2 GE556Y322-GE556Y323 start-up Manually open the 3-way valve, forcing the Remove R473 head from white actuator indicator body valve turning downwards. of 1/8 turn. ATTENTION ATTENTION Once the circuit is lled,... -
Page 23: Flow And Energy Meter Installation
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 4.7 Flow and thermal energy meter installation The flow and thermal energy meters must be installed according to the supplier’s instructions and by replacing the spacers on the HIU (Paragraph “3 Components - Spacers for DHW and DCW flow meters;... -
Page 24: Electric Diagrams
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 4.10 Electric diagrams 4.10.1 GE556Y320-GE556Y321 HIU electric diagrams Collegamento a cura dell’installatore ALIMENTAZIONE Connecting to the installer POWER SUPPLY 230 Vac CRONOTERMOSTATO (non fornito con il satellite) CHRONOTHERMOSTAT (not supplied with satellite) -
Page 25: Ge556Y322-Ge556Y323 Hiu Electric Diagrams
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 4.10.2 GE556Y322-GE556Y323 HIU electric diagrams ALIMENTAZIONE Collegamento a cura dell’installatore POWER SUPPLY Connecting to the installer 230 Vac CRONOTERMOSTATO (non fornito con il satellite) CHRONOTHERMOSTAT (not supplied with satellite) Nero - Black... -
Page 26: Hiu Setting
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 5. HIU setting 5.1 Setting of differential pressure control valve The HIU is equipped with a differential pressure valve which maintains the differential pressure value constant under any operational conditions of the primary circuit. - Page 27 ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series Setting diagram for differential pressure control valve Proper setting of the differential pressure control valve may be identified on the diagram by intersecting the flow rate and minimum Δp data required to operate the HIU.
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Page 28: Setting Of Primary By-Pass
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 5.2 Setting of primary circuit by-pass The HIU is equipped with a by-pass on the sanitary side of the primary circuit, interceptable by means of the ball valve. The by-pass enables to maintain the temperature of the sanitary circuit exchanger also when the system is idle or when heating is active. -
Page 29: Ge556Y322-Ge556Y323: Setting Of Thermostatic Head And Circulator
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 5.4 GE556Y322-GE556Y323: setting of thermostatic head and circulator The heating circuit of GE556Y322-323 HIUs is controlled by a thermostatic head and an electronic circulator. Heating circuit thermostatic head Heating... -
Page 30: Troubleshooting
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 6. Troubleshooting 6.1 Domestic Hot Water temperature too low • Cause: wrong setting value of the thermostatic head to control Domestic Hot Water temperature. Action: make sure the setting position of the thermostatic head (Paragraph “3 Components - Thermostatic head to control sanitary side temperature”) corresponds to the required temperature value;... -
Page 31: Ge556Y322-Ge556Y323
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series • Cause: erroneous setting of the static balancing valve (Paragraph “3 Components - Static balancing valve”). Action: make sure setting of the static balancing valve complies with the project requirements. If not, see paragraph “5.3 Setting of static balancing valve”... -
Page 32: Heating Circuit Water Temperature Too High
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 6.5 Heating circuit not working 6.5.1 GE556Y320-GE556Y321 • Cause: motorized 2-way zone valve with electrical actuator not working (Paragraph “3 Components - 2-way zone valve”). Action: make sure the electrical actuator wires are properly connected to the corresponding terminals of the electric cabinet, if not reconnect them according to instructions of paragraph “4.10 Electric diagrams”. -
Page 33: Inspections And Service
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 7. Inspections and service Warning. State-of-the-art inspections service carried regular basis well using only original spare parts are essential to prevent anomalies and guarantee a long life to your HIU. Yearly service recommended. -
Page 34: Spare Parts
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 8. Spare parts 8.1 GE556Y320-GE556Y321 HIU spare parts... -
Page 35: Ge556Y322-Ge556Y323 Hiu Spare Parts
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 8.2 GE556Y322-GE556Y323 HIU spare parts... -
Page 36: Ge551Y075 Template Spare Parts
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 8.3 GE551Y075 template spare parts... -
Page 37: Compliance Statements
ser and maintenance manUal 0850EN May 2020 igH or low temperature s witH tHermostatic ge556Y320-321-322-323 control ge556-4 series 9. Compliance statements... - Page 38 Installation, commissioning and periodical maintenance of the product must be carried out by qualified operators in compliance with national regulations and/or local standards. A qualified installer must take all required measures, including use of Individual Protection Devices, for his and others’ safety. An improper installation may damage people, animals or objects towards which Giacomini S.p.A. may not be held liable.
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