Giacomini GE556-2 Series User manual

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0864EN March 2017
Metering systeMs
Satellite with electronic regulation
ge556Y404 (ge556-2 SerieS)
047U57228
• Self-modulating circulator 15/6, centre distance 130 mm, complying with
ErP directive (2009/125/CE).
• Heat exchanger and fully insulated piping.
• WRAS-certied components for the sanitary circuit.
• Spacers for inserting the meters.
• Painted sheet metal cabinet (RAL9010), with key locking.
Technical data
• Max. working temperature: 90 °C
• Primary circuit max. working pressure: 6 bar
• Secondary SHW circuit max. working pressure: 10 bar
Warning.
Maximum operating dierential pressure for the primary side = 4 bar
(priority valve)
• Temperature range of the secondary heating circuit:
low temperature 25÷45 °C
high temperature 25÷85 °C
• Temperature range of the secondary SHW circuit: 30÷60 °C (SET POINT 50 °C)
• Nominal ow rate on primary circuit: 1150 l/h @ 75 °C for 67 kW
Components
ED
BCA
5
10
3
11
2
1
4
15
7
6
13
12
8
14
9
15
G
F
17
18
I
H
Legend
1Housing for energy meter temperature probe
PRIMARY
2Filter
3Motorized three-way priority valve for SHW
4Manometer
5Heat exchanger for the sanitary hot water function
6Manual air vent valve
7Minimum pressure switch
8Motorized two-way modulating valve
9Plastic spacer for heat energy meter
10 Flow switch SHW
PRODUCTION
11 Brass spacer for SHW meter
12 Static balancing valve - Heating high temperature
HEATING
13 Motorised 2-way zone valve for heating and electric safety -
Heating low temperature
14 Bypass lockshield valve - Heating low temperature
15 Circulator - Heating low temperature
16 Cabinet with electronic regulation unit
CHECKS17 Remote control / chronothermostat with display
18 External temperature probe
A: Sanitary cold water outlet (optional)
B: Sanitary cold water inlet
C: Sanitary hot water outlet
D: Primary inlet
E: Primary outlet
F: Heating return - low temperature
G: Heating delivery - low temperature
H: Heating return - high temperature
I: Heating delivery - high temperature
Description
The user satellite GE556Y404 allows the metering of heat energy consumption
for heating and the production of SHW (Sanitary Hot Water) in modern
autonomous systems with centralised heat production (e.g. district heating).
The management of the satellite parameters is completely electronic.
The various parameters can be set via remote control which also performs the
function of programmable chronothermostat.
The satellite allows signicant energy savings, minimizing the ow demand
from the primary side and reducing the return temperature.
Versions and product codes
Product code Type Heating side
power
SHW heat exchanger
rated power
Template
with valves
GE556Y404 Heating and SHW
production 26 kW 67 kW GE551Y074
Completion codes
The following components can be installed on each satellite:
• Thermal energy meter, GE552 series.
• Sanitary hot water meter, GE552-2 series.
• Template with 6 shut-o valves and 3/4”connections: code GE551Y074
Note.
Use energy meters approved in accordance with the standardized
“ow disturbance elements” and provided for by the EN 1434 for null
rectilinear section upstream and downstream of the meter, such as the
GE552Y122.
Main features
• Electronic thermoregulation with SET POINT, to manage the SHW
temperature and heating low temperature.
• Heating high temperature performance depends directly from primary
working conditions and static balancing valve setting.
• Remote control with chronothermostat function to manage the parameter,
with display.
• External temperature sensor for climatic compensation.
• Heat exchanger for instantaneous SHW production.
• Flow control switch for priority SHW production.
• Motorized three-way priority valve on the delivery of the primary side.
• Motorized two-way modulating valve on the return of the primary side.
• Manual air vent lter and valve on the primary side.
• Safety pressure switch for low pressure on the primary side.
• Electrical and thermal safety valve on the heating side.
• Connections 3/4".
GE556Y404

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0864EN March 2017
Metering systeMs
Satellite with electronic regulation
ge556Y404 (ge556-2 SerieS)
047U57228
Operation
EDGF
CB
F
P
E
W
H
I
Legend
Heat exchanger FFlow switch
WBrass spacer for SHW meter Manual air vent valve
Motorized two-way
modulating valve EPlastic spacer for energy meter
Temperature probe Motorised 3-way priority
valve
Motorised 2-way zone valve Circulator
Bypass lockshield valve
P
Minimum pressure switch
Static balancing valve
B: Sanitary cold water inlet
C: Sanitary hot water outlet
D: Primary inlet
E: Primary outlet
F: Heating return - low temperature
G: Heating delivery - low temperature
H: Heating return - high temperature
I: Heating delivery - high temperature
Primary
Inlet (D) and return (E). The primary circuit is composed of a Y-lter, a
motorized three-way priority valve, a manual air vent valve, a heat exchanger,
a manometer, a minimum pressure switch and a motorized two-way
modulating valve.
Energy Saving function: the two-way modulating valve controlled by the
electronic management of the satellite, restricts the ow demand from
the primary to the minimum necessary to obtain the pre-set SET POINT
temperature.The priority valve diverts the ow in the heat exchanger (if there
is a request of SHW: SHW ow switch enabled) or in the heating system.
The heat energy meter can be installed in place of the plastic spacer, tting its
temperature probe in the relative housing (1).
E
D
Fig. 1
Heating
Delivery (I) and return (H). The heating circuit high temperature is composed
of a static balancing valve to regulate the ow into the system.
Delivery (G) and return (F). The heating circuit low temperature is composed
of a motorized two-way zone valve with thermal safety function (the valve
stops the ow in the system in the event the delivery temperature exceeds
5° C, the temperature set on the remote control - SET POINT), an adjustable
bypass lockshield valve and a high-eciency circulator (ErP 2009/125/EC).
E
DG
F
I
H
Fig. 2
Sanitary hot water
Cold water inlet (B), hot water outlet (C) and cold water outlet (A - optional).
The SHW circuit is comprised of a ow switch and a brass spacer for the
introduction of the water meter. A hot water meter can be installed Instead
of the brass spacer.
BC
A
Fig. 3

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0864EN March 2017
Metering systeMs
Satellite with electronic regulation
ge556Y404 (ge556-2 SerieS)
047U57228
Settings of the remote control/chronothermostat
Operation in mode: OFF, SUMMER, WINTER, HEATING ONLY
The selection of the operating mode is done by repeatedly pressing the
button .
O: “OFF”and the current time are shown on the display. Only the antifreeze
function (if set) is enabled in this mode. Any request for the SHW or heating
mode operation is ignored.
Summer: the measured room temperature, the current time and the icon are
displayed . The SHW, if set, and the antifreeze function are enabled in this
mode. Any request for the heating mode operation is ignored.
Winter: the display shows the measured room temperature, the time and the
current day, the icons and the program set for the current day. All SHW,
heating and, if set, antifreeze functions are enabled in this mode.
Heating only: the display shows the measured room temperature, the time
and the current day, the icon and the program set for the current day. All
heating and, if set, antifreeze functions are enabled in this mode. Any request
for the SHW mode operation is ignored.
Clock and temperature setting
Depending on the operating mode selected (OFF / SUMMER / WINTER
/ HEATING ONLY) by pressing the button , the clock and the
temperature of the boiler can be set.
The value is displayed for a time equal to the display settings time delay and
is identied by its ashing icon. Press key to pass to the next value
and turn the knob to modify the value.
Clock: press key until the icon and the time value start to ash .
Turn the knob to select the desired time.
Press the knob to pass to the minutes.
The minutes start ashing: turn the knob to select the desired
minutes. Press the knob to pass to the day of the week. The days of
the week start ashing: turn the knob to select the desired day. Press
the knob to conrm the value entered.
Day Set point: press key until the icon and the day set point
value start to ash .
Turn the knob to select the desired value.
Night Set point: press key until the icon and the night set
point value start to ash .
Turn the knob to select the desired value.
Heating Set point: press key until the icon and the heating set
point value start to ash .
Turn the knob to select the desired value.
SHW Set point: press key until the icon and the SHW set point
value start to ash .
Turn the knob to select the desired value.
Kd: this setting is only available if the remote control is congured as
the modulator with the use of the external probe (P04 = 2 or 3). press key
until the icon and the relative value start to ash. Turn the knob
to select the desired value.
NB:
For the other operating modes of the remote control, refer to the
corresponding instruction sheet.
Electric connections
An electrical cabinet IP55 containing the electronic control board is located at
the top right of the satellite.
• The satellite is powered electrically by connecting the 230 V mains supply to
the three-pin terminal board M1 of the electronic board.
•The remote control /chronothermostat (K480Y002) is connected to terminals
23-24 of the electronic board.
• The external temperature probe (K365PY002) is connected to terminals 27-
28 of the electronic board.
• The optional safety thermostat (K373/K373I), is connected to terminals 39-40
of the electronic board.
24 23 22 21 20 1932 31 30 29 28 27 26 2540 39 38 37 36 35 34 3342 41
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
L N
M1
18 17 16
TERMOSTATO DI
SICUREZZA
K373 / K373I
COMANDO REMOTO /
CRONOTERMOSTATO
K480Y002
SONDA DI TEMPERATURA
ESTERNA K365P
TENSIONE 230 VAC
Diagram of the electronic board
Technical data
• Electronic board power supply of the satellite: 230 V
• Supply voltage frequency: 50÷60 Hz
• Ambient operating temperature: -20÷60 °C
• Ambient storage temperature: -20÷80 °C
• Humidity: max 90 % @ 40° C non-condensing
• Maximum absorption: 7 VA
• Maximum length of external probe cable: 30 m
• Maximum length of remote control cable: 30 m
M-Bus
To connect the M-Bus data transfer cable to the concentrator, refer to the data
sheet of the heat energy meter used.
Protection and safety systems
Warning.
Risk of burns and electric shock. The satellite must only be accessed
by skilled personnel, authorised by the building administrator.
It is important that the satellites are accessed only by skilled personnel
authorised by the building administrator: the box is locked. As optional
is possible to install a K373/K373I safaty thermostat to prevent the high
temperature on the heating side.
Checks and Maintenance
Heating circuit pressure
Regularly check the pressure in the heating circuit by means of the
manometer: the pressure value must be kept above 1 bar (values lower than
this may cause cavitation, damaging the circulator). There is a pressure switch
with a 0,8 bar setting to protect the circulator.
Warning.
The satellite will turn o and the display on the remote control signals
an error E71 if the pressure is less than 0,8 bar.
Fill the system again to restart the satellite.
You must set up a lling system for heating - i.e. a connection from the sanitary
circuit to the heating circuit, with a suitable backow preventer. Attention: risk
of burns. Use the manual air vent to remove the air in the circuit.
Warning.
Installation must be carried out by skilled personnel, authorised by
the building administrator.
Respect the regulations regarding the use (installation, xing, etc.),
operation, recalibration and replacement of the meters. Refer also to
the assembly instructions provided with the meter.
REMOTE CONTROL /
CHRONOTHERMOSTAT
EXTERNAL
TEMPERATURE PROBE
SAFETY
THERMOSTAT
VOLTAGE 230 VAC

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0864EN March 2017
Metering systeMs
Satellite with electronic regulation
ge556Y404 (ge556-2 SerieS)
047U57228
Operating data for GE556Y402
Primary circuit
Primary circuit for SHW production, modulating valve all open (see g.1)
1,00
0,10
0,01
0,1 1,0 10,0
Q [m3/h]
Δp [bar]
Kv = 2,13
Primary circuit for heating, lockshield valve and modulating valve all open (see g.2)
1,00
0,10
0,010,1 1,0 10,0
Q [m3/h]
Δp [bar]
Kv = 1,9
Heating
Heating - Low temperature Flow rate [l/h]
Primary outlet temperature (35-30 °C)
Circulator
speed
Flow rate
[l/h]
Power
[kW] 75 °C 70 °C 65 °C 60 °C
Max. 1500 8,8 170 l/h
(30 °C)
190 l/h
(30 °C)
215 l/h
(30 °C)
250 l/h
(30 °C)
Primary circuit data for delivery temperature 35-30 °C
Heating - Low temperature Flow rate [l/h]
Primary outlet temperature (45-40 °C)
Circulator
speed
Flow rate
[l/h]
Power
[kW] 75 °C 70 °C 65 °C 60 °C
Max. 1500 8,8 215 l/h
(40 °C)
250 l/h
(40 °C)
300 l/h
(40 °C)
375 l/h
(40 °C)
Primary circuit data for delivery temperature 45-40 °C Diagram of the heating circulator - Circulator at Δp constant (see g.2)
0
0 200 400 600 800 1000 1200 1400 1600
1
2
3
4
5
6
7
∆p [m H
2
O]
Q [l/h]
Static balancing valve regulation
for heating high temperature side Setting Kv Setting Kv
0,10,01 1,0 10,0
Q [m3/h]
0,01
0,10
1,00
∆p [bar]
1
10
100
∆p [kPa]
1
0,1
10
∆p [m c.a.]
2 4 6 8
12
14
Settings
16
20
30
35
40 4550 5560 65 70 75 80
85
90
95
100
25
100 4,40 40 1,76
95 4,20 35 1,54
90 4,00 30 1,32
85 3,75 25 1,10
80 3,55 20 0,88
75 3,30 16 0,71
70 3,10 14 0,62
65 2,85 12 0,53
60 2,65 80,35
55 2,45 60,26
50 2,20 40,18
45 1,98 20,09
SHW production
Sanitary hot water Flow rate [l/h]
Primary outlet temperature (SHW 10-50 °C)
l/min l/h kW 75 °C 70 °C 65 °C
12 720 33,5 510 l/h
(18,5 °C)
580 l/h
(20 °C)
670 l/h
(22 °C)
15 900 42 660 l/h
(20,5 °C)
750 l/h
(22 °C)
880 l/h
(24 °C)
17 1020 47,5 770 l/h
(22 °C)
880 l/h
(23,5 °C)
1020 l/h
(25 °C)
20 1200 56 940 l/h
(23,5 °C)
1050 l/h
(24,2 °C) -
22 1320 61,5 1040 l/h
(24 °C)
1160 l/h
(24,6 °C) -
24 1440 67 1150 l/h
(25 °C)
1280 l/h
(25 °C) -
Data of the primary circuit for SHW production 10-50 °C Hydraulic data for hot and cold sanitary water circuits (see g.3)
0,01
0,1 1,0 10,0
0,10
1,00
Δp [bar]
Q [m3/h]
Kv = 2,32

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0864EN March 2017
Metering systeMs
Satellite with electronic regulation
ge556Y404 (ge556-2 SerieS)
047U57228
Energy saving features for GE556Y402
Low return temperatures of the primary in SHW operation
65 70 75
T mandata primario [°C]
15
17
19
21
23
25
27
T ritorno primario [°C]
12 l/min
15 l/min
17 l/min
20 l/min
22 l/min
24 l/min
Reduced ow rates requests to the primary, in heating operation
Low temperature:
60 65 70 75
T mandata primario [°C]
100
150
200
250
300
350
400
450
500
550
Portate primario [l/h]
9 kW
∆T (35-30 °C)
Q=1500 l/h
9 kW
∆T (45-40 °C)
Q=1500 l/h
Primary delivery T [°C]
Primary delivery T [°C]
Primary return T [°C]
Primary ow rates [l/h]
Note.
Heating high temperature performance depends directly from primary working conditions and static balancing valve setting.

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0864EN March 2017
Metering systeMs
Satellite with electronic regulation
ge556Y404 (ge556-2 SerieS)
047U57228
Reference Standards
• UNI EN 1434
• EN 60751
• EN 61107
• Measuring Instruments Directive 2004/22/EC (MID)
• ErP Directive 2009/22/EC
WRAS certications
Components Certicate number
Gaskets 1004515
Heat exchanger 1403059
Circulator characteristics
Operation
Automatic operation with constant pressure (recommended).
Automatic operation with variable pressure.
Automatic operation for air purging
(lasting 10 minutes): the circulator increases and reduces the
speed to aggregate the air bubbles and aid their elimination via
the air vent valve (not included with the circulator).
LED - Errors
xed green Normal operation.
ashing green Automatic operation for air purging.
ashing green/red Temporary anomalous situation:
1) incorrect voltage.
2) incorrect uid/ambient temperature
ashing red Circulator idle (permanent error: the circulator must be manu-
ally reset). It may be necessary to replace the circulator.
NO LED
No electricity supply:
1) circulator not powered: check the cable connection.
2) LED damaged: check whether the circulator is working.
3) electronics damaged: replace the circulator
Self-modulating circulator 15/6 (230 V)
p-costante
6
5
4
3
2
1
00 0,5 1 1,5 2 2,5 3 Q [m3/h]
Q [m3/h]
H [m]
0
0 0,5 11,5 2 2,5 3
10
20
30
40
P1 [w]
1 m
0,5 m
2 m
4 m
3 m
5 m
max
Circulator characteristics
Dimensions
450
105 60 60 60 60 60 45
180
47
ABCEDFG
X
630
I
F
Legend
A: Sanitary cold water outlet (optional)
B: Sanitary cold water inlet
C: Sanitary hot water outlet
D: Primary inlet
E: Primary outlet
F: Heating return - low temperature
G: Heating delivery - low temperature
H: Heating return - high temperature
I: Heating delivery - high temperature
X: fairlead
Dimensions in mm
Δp constant
Additional information
For additional information please check the website www.giacomini.com or contact the technical service: '[phone]+39 0322 923255 *[email protected]
This pamphlet is merely for information purposes. Giacomini S.p.A. retains the right to make modications for technical or commercial reasons, without prior notice, to the items described in
this pamphlet. The information described in this technical pamphlet does not exempt the user from following carefully the existing regulations and norms on good workmanship.
Giacomini S.p.A. Via per Alzo, 39 - 28017 San Maurizio d’Opaglio (NO) Italy
Warning.
The satellite can be used in closed boiler rooms for operation with
non-aggressive uids (water, glycol-based water in compliance with
VDI 2035/ÖNORM 5195).