Giacomini GE552 Series User manual

1
0388EN July 2015
Metering systeMs
Volumetric thermal energy meters
ge552 series
ISO
14001
0032A/3
OHSAS
18001
0064L/1
ISO
9001
0006/7
Electronic part
Temperature range [°C] 0÷105
Temperature dierence range [K] 3÷80
Display LCD with 8 gures + special symbols
Ambient temperature range [°C] 5÷55
Minimum temperature difference [K] 3
Measuring frequency [s] 30 seconds
Heat quantity representation MWh
Data backup Once a day
Interface M-Bus
Power supply 3,6 V lithium battery
Battery lifespan > 6 years
Protection class IP54
EMV C
Mechanical/electromagnetic class M1 / E1
Accuracy class 3
Volumetric part
Product code GE552Y158 GE552Y159 GE552Y160
Nominal Qp flow rate [m³/h] 0,6 1,5 2,5
Maximum Qs flow rate [m³/h] 1,2 3,0 5,0
Minimum Qi horizontal flow rate [l/h] 12 30 50
Minimum Qi vertical flow rate [l/h] 12 30 50
Start-up horizontal ow rate [l/h] 445
Temperature range [°C] 10÷90
Nominal pressure PN 16
Pressure loss at Qp [bar] < 0,25
Nominal diameter DN 15 15 20
Length [mm] 110 110 130
Installation position horizontal or vertical; NOT upside down
Cable length [m] 1,2
Installation point for the
temperature probe M10 x 1
Fluid water
Losses of pressure
0,001
0,01
0,1
1
10
0,1 1 10
Q [m3/h]
Δp [bar]
3/4”
1”
Product code Connections Kv
GE552Y158 3/4" 3,0
GE552Y159 3/4" 3,0
GE552Y160 1” 5,6
Description
The GE552 volumetric single jet energy meter is characterised by its consistent
accuracy over time and its remarkable operating safety; high precision
measuring capability means that this device can be used across a wide range
of applications. The meter is available in 3/4” versions (nominal ow rate of
0,6 or 1,5 m³/h) and 1”versions (nominal ow rate of 2,5 m³/h). It is equipped
with a double register, and can therefore measure the thermal energy of both
heating and cooling operations. The temperature range of the meter makes
it ideal for metering energy consumption in residential buildings equipped
with a centralised heating/conditioning system and zone distribution.
Versions and product codes
Product code Connections
Centre
to centre
assembly
distance
[mm]
Nominal
ow rate
[m3/h]
Flow rate
min.
[l/h]
Flow rate
max.
[m3/h]
GE552Y158 3/4" 110 0,6 12 1,2
GE552Y159 3/4" 110 1,5 30 3,0
GE552Y160 1” 130 2,5 50 5,0
Main characteristics
Its particularly compact structure makes it suitable for any type of installation.
The electronic part can be separated to allow installation in even the smallest
metering cabinets. Easy to use, by means of one single key. The display is
easy to read, and shows all the most important operating conditions. Its
reliability and notable measuring performance ensure excellent measuring
results throughout its working life. Thanks to the use of the most advanced
electronics (free of electromagnetic interference), it satises all the current
requisites in terms of measuring techniques for compact meters.
Technical data
Temperature probes
Resistance to platinum Pt1000
Diameter and type of probe 5 mm (DS according to EN 1434)
Temperature range [°C] 0÷105
Cable length [m] 1,5
Installation points
delivery direct immersion or in immersion
housings (existing systems)
return probe integrated in the volumetric part
GE552

2
0388EN July 2015
Metering systeMs
Volumetric thermal energy meters
ge552 series
ISO
14001
0032A/3
OHSAS
18001
0064L/1
ISO
9001
0006/7
Warning.
The installation must be carried out by qualied personnel.
This technical information sheet must be read carefully and in full
before installing the device.
Installing the volumetric part
• Ball valves must be installed upstream and downstream from the volumetric part.
• Check the correct flow direction (shown by an arrow on the side).
• The use of devices that modify the flow direction is forbidden!
• Install the tool horizontally or vertically, not diagonally or upside down!
• Install in horizontal or descending/ascending flow pipes.
• Do not install in the highest part of the line, in order to avoid the formation
of air pockets.
• Bear in mind the dimensions of the meter. The distance between two EAS
cabinets must be at least 135 mm.
• Keep a distance of at least 1 metre between the meter and any
electromagnetic sources such as switches, motors or pumps.
• Keep a distance of at least 20 cm from electric cables.
• Leave a space of at least 3 cm around the device.
Installing the heating/cooling meter
• Carefully rinse the system out before installing the meters.
• Close the valves upstream and downstream, and depressurise the system.
• Remove the tools or“standby templates”from the line.
• Use only new gaskets; clean their surfaces and check them for signs of wear.
• Install the new tool in the correct flow direction.
• Turn the electronic part to the required reading position.
Installing the temperature probes
• Do not remove the return probe installed during the production phase, and do
not remove the standard protection seals either.
• The probe cables are identified by their colours (red=delivery; blue=return).
• The cables cannot be folded, lengthened or shortened!
• It is forbidden to damage the seal on the probe.
• Fully remove any caps and gaskets from the ball valve.
• Correctly position one O-ring (the second O-ring is a spare part) using the pin,
rotating it slightly to insert it in the installation point (in accordance with DIN
EN 1434).
• Correctly position the O-ring using the other end of the pin installation kit.
• Insert the two halves of the plastic adaptor in the three probe stops, and press
them against each other.
• Use the installation and positioning support.
• Insert the probe in the installation point, then tighten it by hand until it is
resting against the piece with 12 sides (torque moment 3-5 Nm).
• Seal the probe installation point (which you may choose to integrate in the
flow sensor).
• As soon as the probes have been installed, fix the seals to prevent any tampering
by unauthorised persons.
Installing the adaptor
Pulse inputs
The pulse value of the three inputs can be called up on the display.
Technical data
• Max. load: 30V DC / 20 mA
• I/O 1, 2, 3: Open Drain, canal n FET
• Key ratio: 1:1 (out) 1:5 (in)
• Input frequency: max. 1 Hz
• Cable length: 1,5 m
• Cable diameter: 3,8 mm (4 wires)
Connections
Colour Connection Meaning
White I/O 1 Input / Output 1
Yellow I/O 2 Input / Output 2
Green I/O 3 Input / Output 3
Brown GND Common earthing for I/O 1, 2, 3
In 1, 2, 3
GND
Ingresso
M-Bus interface
The integrated M-Bus interface complies with regulation UNI EN 1434-3 and
transmits information at a speed of 2400 baud. In addition to information on
the heating/conditioning energy consumption, the interface can transmit
data picked up by the three additional inputs.
Technical data
• Cable length: 1,5 m
• Cable diameter: 3,8 mm (2 wires)
Connections
Colour Connection Meaning
Brown M-Bus 1 M-Bus line 1
White M-Bus 2 M-Bus line 2
Installation
The installation of the flow rate measuring section is carried out by replacing
the plastic dummy meter connection point. No adaptors or other connection
components are necessary. The return temperature probe is integrated into
the flow measurement section.
Warning.
The maximum temperature of the water in the volumetric part must
not exceed 90 ºC. During assembly, make sure no hot water leaks
out - risk of burns.
All current laws and regulations must be respected, in particular EN 1434 parts
1 and 6.
Since the GE552 meter incorporates an M-Bus communication interface and
can therefore form part of a network for transmitting data, it must also comply
with the regulations for the installation of electronic devices.
Input

3
0388EN July 2015
Metering systeMs
Volumetric thermal energy meters
ge552 series
ISO
14001
0032A/3
OHSAS
18001
0064L/1
ISO
9001
0006/7
Legend
Briefly press the button (S), to scroll from top to bottom. From the last
menu item automatically moves to first (loop).
Press for about 2 sec. the button (L), wait until you see the symbol of the
door (up on the righy on display), then release the button. Only then the menu
is updated or goes to the submenu.
Press the button (H) until the change of level or to move to submenu.
NB.
Activate the optical interface before reading the device with optical
sensor by pressing a button.
Activate the devices in standby (display: SLEEP 1) by pressing a
button, until it sees the indication of the energy.
Level 1 Level 2
Thermal energy
(main dispaly)
Thermal energy from the last
xed day of resetting until today
Cooling energy from the last
xed day of resetting until today
Current monthly value -
Thermal energy
Current monthly volume
Max. ow rate
Max. monthly values
ow
Max. monthly thermal energy
Max. colling energy - average value with
eect from the start-up
Max. monthly colling energy
Max. power, hourly average value with
eect from the start-up
Current monthly consumption -
Cooling energy
Cooling energy
Segment test
Date of the xed day
Energy of the xed day
Colling energy a xed day
Volumes
Flow rate
Delivery temperatura
Return temperatura
Temperature dierence
Instantaneous performance
Start-up
• Open the valve slowly. Depressurise and rinse out the line, avoiding any
water-hammers.
• If“sleep”mode is active on the meter (display SLEEP1), you can deactivate it by
pressing the key and keeping it pressed (>5 sec.).
• Check the system seal.
• When the system is operating, check whether the flow rate is shown on the
display, and whether the indicated temperatures actually correspond to the
real ones (see the display).
• Wait for the temperature to be updated on the display (1-2 sec).
• Fix the seals on the devices to prevent any tampering by unauthorised
persons.
Maintenance
The device does not require maintenance: any necessary repairs must be
carried out by the manufacturer.
Warning.
Only a damp cloth should be used to clean the surfaces of the device;
powerful or abrasive detergents must not be used.
Status symbols / Error codes
The symbols in the table below indicate the status of the meter in a clear and
unmistakable manner. The status can only be seen on the main display (Energy).
The triangular indicator light may flash as a result of particular system conditions,
not necessarily relating to a device fault. If the flashing continues however, you
must contact the technical assistance service.
Symbol Status Action
External power supply
Flow rate present -
Attention! Faulty system/device
Flashing symbol: data
transmission -
Constant symbol:
optic interface active -
Fault Replace the tool
Nota.
I codici di errori indicano gli errori rilevati dal contatore di energia. In
presenza di più errori viene visualizzata la somma dei codici errori:
errore 1005 = errore 1000 ed errore 5.
Code Type of fault and possible cause Solution
1Temperature not in the range of
display Check the temperature sensors
2Temperature not in the range of
display Check the temperature sensors
3Short circuit return sensor Check the temperature sensors
4Interruption return sensor Check the temperature sensors
5Short circuit delivery sensor Check the temperature sensors
6Interruption delivery sensor Check the temperature sensors
7Battery voltage Replace the device
8Hardware fault Replace the device
9Hardware fault Replace the device
100 Hardware fault Replace the device
800 Wireless interface Replace the device
1000 Low battery Replace the device/battery*
2000 Calibration period expired Replace the device
* For certication reasons the battery replacement is permitted only abroad

4
0388EN July 2015
Metering systeMs
Volumetric thermal energy meters
ge552 series
ISO
14001
0032A/3
OHSAS
18001
0064L/1
ISO
9001
0006/7
Additional information
For further information, visit the website www.giacomini.com or contact the technical service: '[phone]+39 0322 923255 *[email protected]
This information is intended as an example. Giacomini S.p.A. reserves the right to modify the contents - at any time and without prior warning - for technical or commercial reasons. The
information in this technical sheet does not exempt the user from scrupulously observing the existing regulations and standards relating to good technical practices. Giacomini S.p.A. Via per
Alzo, 39 - 28017 San Maurizio d’Opaglio (NO) Italy
Dimensions
Product code Connections H1 [mm] H1+H2 [mm] L [mm] E [mm]
GE552Y158 3/4” 40 65 110 21
GE552Y159 3/4” 40 65 110 21
GE552Y160 1” 40 65 130 21
Warning.
Leave a space of at least 30 mm for installation.
Compliance with MID Directive
If used for commercial applications, the energy meters are classied as
measuring instruments subject to the rules of legal metrology. The GE552
meters comply with the requisites of Directive 2004/22/EC for measuring
instruments (MID - Measurement Instrument Directive), implemented in Italy
by Legislative Decree 2 February 2007, no.22 (Ocial Gazette no.64 of 17 March
2007). The DE12 MI004-PTB010 conformity certicate was issued by the PTB
Institute of Metrology (Physikalisch-Technische Bundesanstalt).
NB:
the supplementary metrological marking is displayed on the front
of each device, next to the EC mark. It consists of an "M" plus the last
two digits of the year of marking, surrounded by a rectangle.
Reference Standards
• UNI EN 1434 - Heat meters
• UNI 10200 - Allocation of heating costs
• Legislative Decree 2 February 2007, no.22 - implementation of Directive
2004/22/ECfor measuring instruments
Level 3 Level 4
Type of sensor and installation
volumetric point
Pulse value - Input 1
Pulse value - Input 2
Pulse value - Input 3
Serial number
Version number
Battery nished
Error
Current date
Current time
Hours of operation
M-Bus address
Certication
Firmware version
Function
Exit 1
Function
Exit 2
Function
Exit 3
residual energy -
optical interface