GIACOMINI minibems HEAT INTERFACE UNITS Digital HIU... · HIU to be able to deliver the thermal...

GIACOMINI minibems HEAT INTERFACE UNITS

T: 01454 809100 E: [email protected] W: uk.giacomini.com

CIBSE HEAT NETWORKS CONSULTANTSTo arrange to speak with one of Giacomini UK’s CIBSE certi� ed Heat Networks Consultants please contact us on:

Telephone: 01454 311012 Email: [email protected]

This communication is merely for information purposes. Giacomini U.K, Ltd. retains the right to make modi� cations for technical or commercial reasons, without prior notice, to the items described in this communication. The information described in this technical communication does not exempt the user from following carefully the existing regulations and norms on good workmanship.

Minibems® is a registered trademark of Minibems Ltd.

PAG

E N

UM

BERS

CONTENTP4 – Heat Network

P6 - Heat Interface Units

P8 - System Controls

P10 - System Design

P12 - System Components

P14 - Technical Data

P16 - Minibems Service Options

P18 - Quality Control

BROCHURE CONTENT

T: 01392 249110 E: [email protected] W: www.minibems.com

We have a dream, to coin a phrase, that COMMUNAL HEATING SYSTEMS should be, need to be, e� cient.The ?uestionfound itself pondering is, ‘can we show clients, consultants and contractors that they

have installed an e� cient

AND HOT

WATER SYSTEM?’.

We have found the answer to this?uestion in

our PARTNERSHIP with

Their technology allows us to MEASURE

DIAGNOSE

&IMPROVEthe e� ciency of a

and hot water system. This brochure will show youHOW


GIACOMINI U.K LTDMINIBEMSPage 4

HEAT NETWORKS

BOILER

CP1CIBSE CP1 over riding goal is to have e� cient heat networks and minimise heat losses across the network.

CIBSE CP1 acknowledges that variable � ow systems result in lower � ow rates and lower return temperatures. It recommends that the pumps are controlled to maintain a minimum pressure di� erence at the extremities of the network, by using a remote DIFFERENTIAL PRESSURE SENSOR. It also mentions that this control principle is important, as it will reduce heat losses and pumping energy.

CIBSE CP1 recognises the importance of installing Y-STRAINERS by stating that large bodied strainers with � ne mesh shall be speci� ed on both direct and indirect systems, to reduce the risk of dirt accumulating on valves and heat exchangers.

In heat networks, such as a district or communal heating system, Heat Interface Units (HIUs) are the � nal interface between the communal system and the individual dwelling’s heating and hot water systems. The HIU meters the energy usage of each dwelling and controls the � ow of water to it, which helps balance the system.

The HIU is 100% consumer demand driven. The HIU only takes what it needs from the primary system to produce the the exact amount of domestic hot water or heating requested by the consumer. For the HIU to be able to deliver the thermal energy requirements to the end consumer, it is important that the primary system delivers enough heat energy to the HIU, guaranteeing an e� cient and reliable heat supply.

For the primary system to be able to do this, its design must take into consideration peak times, base load and pump energy consumption.

UP TO 50% OF HEAT CAN BE LOST FROM UNREGULATED HEATING SYSTEMS WITH POOR SYSTEM CONTROL.

Demand management systems, such as Minibems, can be installed to provide dynamic � ow and temperature control. This o� ers the � exibility to control multiple heating zones within the heat network based on real-time building conditions and weather compensation. Combine a well balanced system with a dynamic control system and you have the making of an e� cient heating and hot water scheme.

Giacomini’s technical sales team includes fully registered CIBSE Heat Network Consultants who are able to advise on the e� cient design of heat networks.

Giacomini are proud to have teamed up with Minibems, an award-winning provider of building energy management systems, to develop this latest G6 unit.

This brochure explains how Giacomini’s new and innovative G6 Minibems HIU helps to monitor and control the heat network to reduce cost, improve e� ciency and increase ease of management.

CIBSE (2015)

Heat Networks: Code of Practice for the UK

VO

RTEX

FLO

W &

TE

MPE

RATU

RE

SEN

SORS

.


PRODUCTION

DISTRIBUTIONBO

ILER

SA

FETY

MA

NIF

OLD

(R55

5)

HYD

RAU

LIC

SEPA

RATO

R (R

146I

)

VARI

ABL

E SP

EED

PU

MPS

PRES

SURE

TES

T PO

INTS

(P20

6)

ISO

LATI

ON

VA

LVES

(R91

0, R

250)

For more information on Giacomini’s plant room components and � ow control valves scan the code displayed below or visit uk.giacomini.com/download-area to view the latest Flow Control Brochure.

A heat network can be broken down into three areas; Production, Distribution and Consumption.

VO

RTEX

FLO

W &

TE

MPE

RATU

RE

SEN

SORS

.

HEAT NETWORK CONTROLLER



ENERGY METERENERGY METERENERGY METERENERGY METERENERGY METER

HEAT INTERFACE UNITS

CP1 CIBSE CP1 Best Practice is for the dwelling radiator circuit to have a variable speed pump to reduce electricity consumption. The Giacomini G6 Minibems units contain aVARIABLE SPEED PUMP.

Giacomini’s G6 Minibems is a high-e� ciency Heat Interface Unit (HIU) designed for managing central heating and domestic hot water production. Using Minibems intelligent Building Energy Modelling (BEM) system, the unit delivers outstanding control authority, through the use of the latest pump and valve technology with electronic feedback.

CIBSE (2015)



ENERGY METERENERGY METERENERGY METERENERGY METERENERGY METERENERGY METERENERGY METERENERGY METERENERGY METER

CP1CIBSE CP1 recommends an approach temperature of less than 5°C, with best practice aiming at less than 3°C. The Giacomini G6 HIU has an approach temperature of 1-2°C. The approach temperature is the di� erence in temperature between the primary � ow and the secondary � ow. A low approach temperature means good e� ciency of the PLATE HEAT EXCHANGER.

The Minibems system dynamically lowers operating and return

temperatures, ensuring that the level of output meets the required current demand.

HIUs are individually monitored and modulated, via cloud control, to ensure maximum e� ciency.

The Minibems enabled G6 twin plate units hydraulically separate the primary and secondary heating systems and

allow for instantaneous production of both the heating and domestic hot water, via separate plate heat exchangers.

Meanwhile the inclusion of a fast acting modulating two-port valve ensure the lowest return temperature possible at any given

condition.

The instantaneous production of DHW ensures there is no storage of hot water, minimising the risk of legionella developing. The hydraulic

separation of the primary and secondary heating systems also reduces the risks if a leak occured anywhere in the heating or hot water system.

The intelligent two-way communication system provides comprehensive remote access to the heat network. This o� ers an overview of the whole system's performance

and ensures that the system is working at peak e� ciency for that building's heating and hot water demands.

The precon� gured control system is easy to install and simpli� es system commissioning. The heat network can be viewed and remotely controlled by the building owner via the Minibems

dashboard, whilst the resident can control the individual � at system via an App and/or Internet site.

LANDING BYPASS SETS

G6 MINIBEMS HEAT INTERFACE UNIT (GE556Y421/ 422)

DISTRIBUTION

CIBSE (2015)




CP1CIBSE CP1 recommends installing low temperature heating systems, such as UNDERFLOOR HEATING, in systems supplied by heat networks, as this reduces return temperatures, which is advantageous for the e� ciency of heat networks.

Alternatively, CIBSE CP1 recommends using PRESETTABLE TRV’S and for these to be preset at a low enough � ow rate to give the required (low) return temperature, whilst still giving the design heat output.

PRESETTABLE TRVS (R401PTG, R402PTG, R411PTG, R412PTG & R415PTG)

MAGNETIC DIRT SEPARATOR (R146C)

SYSTEM CONTROLS

RESIDENT TOUCHSCREEN DISPLAY (RS02)

WIRELESS ROOM SENSOR (RS08)

OUTSIDE TEMPERATURE SENSOR (OS01)

CIBSE (2015)


WIRED ROOM SENSOR (RS04)




GSM

ADSL

ETH

ERN

ET

INTERNET

CLOUD SERVER

HIU DASHBOARD

MONITORING/DIAGNOSTIC / SYSTEM CONFIGURATION

BILLING PROVIDER

The G6 Minibems heat network control system provides demand management for complex heating systems, by automatically identifying and utilising opportunities within the heat network to reduce energy consumption.

From the controller located within the heat interface unit, the Minibems system seamlessly connects the building’s heat network devices and hardware to a cloud based server. This set-up provides visibility of all aspects of the heating environment, relaying monitoring and control information back to the server for further analysis. Controllers communicate over a Local Area Network (LAN), which is connected to the Internet via a router. The Minibems system can contain an unlimited number of devices.

Using the data provided the Minibems system is able to respond dynamically to both building and weather conditions. A management dashboard is also available for remote network operation and optimisation.

KEY FEATURES:

1.Real-time dynamic control according to current operating conditions.

2. Variable temperature (weather compensating) and volume control of the heating circuits to minimise primary return temperatures and � ow rates, for increased network e� ciency. Please note, weather compensation is only available if the external temperature sensor (OS01) is incorporated.

3. The remote monitoring and fault diagnostic dashboard makes the heat network easier to manage, reducing time spent on site and the associated costs.

4. With a Minibems control unit installed within the plant room and each individual HIU, the whole network can be optimised with full management of every element of the heat and hot water delivery. This includes visibility of the equipment located in the residents’ � ats.

5. Metering and billing of water and heat made accurately through Mbus connected energy and water meters (optional).

6. The controller has a built-in credit and prepayment interface supplied as standard, which can be remotely set-up and activated (if

required). This provides the tenants with an automated system for adding energy credit.

7. The operators dashboard, accessible via a web and app interface, shows real-time and historical data, split into heating and hot water use. Residents can see their energy usage for the individual property via the touchsceen display.

CONSUMPTIONET

HER

NET


PIPE SIZE BREAKDOWN:

KEY: 1/s Pa/m 1 0 m/s

Marking Flow Rate

Diversity Pipe size Pipe type Pressure Velocity

(1/s) drop Pa/m m/s

CD 0.12 100% 22 Copper 90 0.38 @ 0.18 62% 22 Copper 184 0.58 @ 0.24 48% 28 Copper 89 0.46 @ 0.42 48% 25 Steel 240 0.73 ® 0.59 31% 32 Steel 114 0.59 ® 0.76 25% 32 Steel 184 0.76 (J) 0.92 22% 32 Steel 265 0.92 ® 1.08 19% 40 Steel 167 0.8 ® 1.24 18% 40 Steel 217 0.92 @) 1.40 16% 40 Steel 275 1.04 @ 1.55 15% so Steel 101 0.72 @ 1.72 15% so Steel 124 0.8 @ 1.87 14% so Steel 145 0.87 ® 2.03 13% so Steel 170 0.94 @) 2.18 13% so Steel 195 1.01 @ 2.34 12% so Steel 223 1.09 @ 2.50 12% so Steel 254 1.16 @ 2.60 12% so Steel 274 1.21 ®) 5.12 9% 65 Steel 271 1.42


SYSTEM DESIGN

Giacomini's CIBSE Certi� ed Heat Network Consultants are able to advise on the e� cient design of heat networks. The primary goal according to CIBSE Heat Networks Code of Practice for the UK (CP1 - 2015) is to design an energy e� cient system that minimises heat losses. A few key points to keep in mind when designing a system are:

- Keep � ow and return temperatures low – this will reduce the heat losses and allow boilers to condensate.

- Low temperature secondary systems, such as under� oor heating, help to reduce the primary return temperature.

- Reduce the � ow rate when possible in order to reduce both pump energy costs, as well as pipework heat losses.

- Minimise heat losses by insulating pipework, � ttings and other components and by reducing system temperatures.

- Look at diversity – Giacomini have opted to use DS439 to calculate the simultaneous DHW demand, based on CIBSE recommendations that suggest the British Standard is too conservative. Using real-life test data from similar projects is recommended wherever possible, which we intend on gathering from future projects where Minibems has been utilised.



SYSTEM COMPONENTS


SYSTEM COMPONENTS

B C D E F GA 9

1413

12

15

7

115

9

4

6

8

10

52

3

1

4

A: Domestic cold water inlet B: Domestic cold water outlet C: Domestic hot water outlet D: Primary inlet E: Primary outlet F: Heating inlet G: Heating outlet

33


1. Heat Network Controller. This is the brain of the Minibems heat network system. The controller is stored neatly at the back of the unit in a protective casing. The device receives data from multiple hard wired components, which are then analysed and operational signals transmitted, via a cloud based server, for both controlling and monitoring the � ow of heating and hot water into the home. This controller is pre-installed inside the HIU and wired.

2. Heat Exchanger. For the domestic hot water function.

4. PWM (Pulse Width Modulation) Flow Control Valve. This fast acting two port control valve will adjust the primary � ow rate to suit the exact requirements of the system.

5. Safety Pressure Switch. For protection of the pump.

3. Air Vent. 6. Heat Exchanger. For the heating function.

7. Variable Speed Pump. For accurate control of the � ow rate and temperature of the heating system. The two-way pump both receives signals from the master controller, and feeds back information about � ow rates, temperatures, power consumption and operation status, via PWM (Pulse Width Modulation) feedback signals. This checks that the system is working as e� ciently as it can at all times.

8. Pressure Gauge.

9. Electrical & Thermal Safety Valve. Used for the heating system. Located at the bottom of the unit.

10. Flow Switch. 12. Vortex Flow and Temperature Sensors. These sensors send information on � ow rates and temperatures to the master controller so that it can match the primary � ow rates to the secondary requirements, making the system as e� cient as possible.11. Filter.

13. Housing for Energy Meter Temperature Probe.

14. MID Approved Class 2 Energy Meter (optional). For an accurate calculation of the heat supplied. All meter options conform to the Measuring Instruments Directive (MID). Meters can be pre-installed

*

, if required.

15. Water Meter Spacer. An optional water meter can be pre-installed*

and connected to the energy meter, if required. Each meter can then be independently addressed on the MBUS network.

16. Room Sensor. This component transmits information about the ambient temperature back to the master controller. Both wired and wireless options are available.

17. Outdoor Sensor. For weather compensated variable temperature control of the entire heat network. Minibems dynamically reduces the heat network’s operating � ow and return temperatures, working to meet actual demand rather than operating the whole system at constant temperatures all year round.

18. HIU Resident Touchscreen Display (For Prepayment). Comes with a room temperature sensor microchip for user heating & hot water control, plus billing & consumption information.

CP1CIBSE CP1 recommends that HIUs are controlled using TWO-PORT CONTROL VALVES, so that a variable volume control principle is established, just like in the Giacomini G6 Minibems.

CIBSE CP1 recommends all HIUs to include LARGE BODIED FINE MESH STRAINERS to reduce the risk of dirt accumulating on valves and heat exchangers. The G6 Minibems model includes a strainer as standard.

CIBSE CP1 states that the system should comply with WRAS – WRAS approval is Pending for this product.

CIBSE (2015)


16

18

* Please note, pre-installed meters are mechanically � tted only. A quali� ed site electrician must complete any wiring.

17

A: Domestic cold water inlet B: Domestic cold water outlet C: Domestic hot water outlet D: Primary inlet E: Primary outlet F: Heating inlet G: Heating outlet



TECHNICAL DATA

E D G FCBA

MAV

STR

MAV MAV

CP1 CIBSE CP1 recommends that pipework, heat exchangers and all other components within a HIU are INSULATED to reduce heat losses and unwanted heat gains, or that the entire HIU enclosure is insulated. The G6 Minibems model is fully insulated.

Temperature probe Two-port control valve with actuator

Heat exchanger Minibems controller system

Manual air vent Spacer for heat energy meter

Safety valve Room sensor

Strainer Spacer for DHW meter High e� ciency circulator Minibems cloud server

Manometer Minimum pressure switch

Expansion vessel Temperature sensor

A: Domestic cold water inlet C: Domestic hot water outlet E: Primary outlet Vortex � ow sensor

B: Domestic cold water outlet D: Primary inlet F: Heating inlet G: Heating outlet

CIBSE (2015)


MAV

STR


GE556Y422 DHW PRODUCTIONl/min l/h kW 80°C 75°C 70°C 65°C 60°C

Primary outlet temperature (10-50°C)

Flow rate [l/h]

12 720 33.3 463 (16.3°C)

514 (17.8°C)

584 (19.8°C)

687 (22.5°C)

867 (26.4°C)

15 900 41.6 592 (17.7°C)

661 (19.4°C)

757 (21.6°C)

903 (24.5°C)

1164 (28.7°C)

17 1020 47.2 681 (18.6°C)

763 (20.4°C)

878(22.7°C)

1056(25.8C) -

20 1200 55.5 819 (20°C)

923 (21.9°C)

1070 (24.3°C) - -

24 1440 66.6 1009 (21.5°C)

1144 (23.6°C) - - -

29 1740 80.4 1258 (23.4°C) - - - -

Primary circuit data for radiator heating

circular speed

fl ow rate (m3/h)

power(kW)

80°C 75°C 72°C

Primary outlet temperature (65-45°C) Flow rate [l/h]

Max 0.76 17.4 488(48.5°C)

620(50.2°C)

765(52°C)

Primary circuit data for underfl oor heating

circular speed

fl ow rate (m3/h)

power(kW)

70°C 65°C 60°C

Primary outlet temperature (45-30°C) Flow rate [l/h]

Max 0.58 10 224(31.47°C)

307(31.1°C)

310(31.7°C)

HEATING

GE556Y421 DHW PRODUCTIONl/min l/h kW 80°C 75°C 70°C 65°C 60°C

Primary outlet temperature (10-50°C)

Flow rate [l/h]

12 720 33.3 479(18.5°C)

537 (20.2°C)

617 (22.5°C)

741 (25.5°C)

967 (29.8°C)

15 900 41.6 617 (20.3°C)

697 (22.3°C)

809 (24.7°C)

987 (27.9°C) -

17 1020 47.2 713 (21.4°C)

808 (23.4°C)

944(26°C)

1161(29.3°C) -

20 1200 55.5 861 (22.9°C)

982 (25.1°C)

1157 (27.8°C) - -

A: Domestic cold water inletB: Domestic cold water outletC: Domestic hot water outletD: Primary inletE: Primary outletF: Heating inletG: Heating outletX: Hole for electrical cables

JIG BRACKET (GE551Y085)

The initial � x of the jig bracket can be completed prior to the heat interface units arriving on site, preventing any unnecessary site thefts or damage.

A: Domestic cold water inletB: Domestic cold water outlet

A B C

C

D

D

E F

F

G

G

X Y

450 60390

102

450

826

274

208

50 45 62 65 67 55 57 49

Y

Dimensioni - Dimensions

458400 60

102

450

792

240

45 60 60 60 60 60 60 55

218

A B D E F

X

GC

Height 792 mmWidth 458 mmDepth 218 mmJig Connections 22 mm

TECHNICAL DATA

Max. working temperature: 90 °CMax. operating pressure (primary and secondary):

10 bar

Max. di� erential pressure: 4 barTemperature of heating circuit: low temperature

24-45°C

Temperature of heating circuit: high temperature

25-85°C

DHW temperature range: 30-60°C (factory set to 50°C)

1 2

3

4

EXAMPLEFLOW RATE CALCS

1) Select the required � ow rate (DHW) from the � rst column. Example 20 litres per minute

2) Column 3 shows the kW load required. Example 55.5 kW

3) Select the � ow temperature of the primary pipework from top row. Example 70°C

4) Cross reference to � nd � ow rate. This is required litres per hour through the heat exchanger on the primary side. Example 1157 litres per hour

The � gure in brackets is the return temperature when under load. Example 27.8°C

Temperature probe Two-port control valve with actuator

Heat exchanger Minibems controller system

Manual air vent Spacer for heat energy meter

Safety valve Room sensor

Strainer Spacer for DHW meter High e� ciency circulator Minibems cloud server

Manometer Minimum pressure switch

Expansion vessel Temperature sensor

A: Domestic cold water inlet C: Domestic hot water outlet E: Primary outlet Vortex � ow sensor

B: Domestic cold water outlet D: Primary inlet F: Heating inlet G: Heating outlet

Height 630 mmWidth 460 mmDepth 270 mm

UNIT DIMENSIONS

JIG DIMENSIONS (INC VALVES)


COMPREHENSIVE HEAT NETWORK SUPPORT

Minibems provides a range of integrated support services to ensure that your Heat Network delivers the best possible service to your customers whilst minimising the amount of energy used which results in signi� cant reductions in carbon emissions. Whether you are looking for a fully internet enabled window on the operation and

e� ciency of your Heat Networks, or a full Heat Network Management solution which includes billing and metering, Minibems

has a service to meet your needs.


MINIBEMS SERVICE OPTIONS

INTEGRATED METERING & BILLING. In addition to its own fully featured metering and billing solution, Minibems can fully integrate with a range of metering and billing service providers. Integration is achieved at the software level so if you already have a supplier for an existing heat network, you will not be forced to change.

Each individual Minibems heat network controller can be remotely switched between credit and pre-payment billing for each apartment, depending upon the resident and the prevailing circumstances.


32122222222333333333333333333333333

HEAT NETWORK MANAGEMENT, METERING & BILLING

Minibems has developed a fully functional credit and pre-payment billing solution to complement its full Heat Network Management solution. This means the customer has a single point of contact for all elements of the network infrastructure.

This options includes the following in addition to Options 1 & 2;

• Full credit & pre-payment functionality to include cash, internet, bank & mobile payment capabilities• Available credit & usage displayed on customer screen• Full friendly & emergency credit facility• Relative Portal to allow residents relatives to add credit• Full revenue assurance reports for the network operator

HEAT NETWORK MANAGEMENTAn online, proactive monitoring and management service, the objective of which is to identify and rectify faults before the customer notices service disruption. Minibems combines software and operational processes to ensure that Heat Network performance is optimised whilst using the minimal amount of energy to deliver the heat and hot water required.

This options includes the following in addition to Option 1;

• Proactive Heat Network Management, full remote visibility to ensure all faults and system performance are monitored• Fault identi� cation and recti� cation in both proactive and reactive modes

• Comprehensive fault management through to full resolution• Network connectivity management from the Internet through to the residence• Heat generation technology consultancy and roadmap production• Preventative Heat Network maintenance & management

HEAT NETWORK MONITORING & REPORTINGLargely a reactive service but includes an online connection to your Heat Networks which enables Minibems to view your network estate remotely to diagnose and rectify faults reactively.

This option includes the following;

• Telephone support during core working hours cover as standard (08:30 – 17:00 Mon – Fri)• Remote HIU commissioning following installation• Automatic HIU pro� ling and optimisation• HIU performance reporting such as VWART (volume weighted average return temperature)• Automatic Heat Network optimisation and energy usage reduction• Service exception & fault reporting• Quarterly Heat Network performance report which is bespoke to meet the speci� c customer requirements but can include details such as Seasonal Performance Factor (SPF)11111111111111111111111111111111111HEAT NETWORK MONITORING & REPORTING1HEAT NETWORK MONITORING & REPORTINGLargely a reactive service but includes an online connection to your Heat 1Largely a reactive service but includes an online connection to your Heat Networks which enables Minibems to view your network estate remotely to 1Networks which enables Minibems to view your network estate remotely to

• Telephone support during core working hours cover as standard (08:30 – 17:00 Mon – Fri)1• Telephone support during core working hours cover as standard (08:30 – 17:00 Mon – Fri)

• HIU performance reporting such as VWART (volume weighted average return temperature)1• HIU performance reporting such as VWART (volume weighted average return temperature)• Automatic Heat Network optimisation and energy usage reduction1• Automatic Heat Network optimisation and energy usage reduction

• Quarterly Heat Network performance report which is bespoke to meet the speci� c 1• Quarterly Heat Network performance report which is bespoke to meet the speci� c customer requirements but can include details such as Seasonal Performance Factor (SPF)1customer requirements but can include details such as Seasonal Performance Factor (SPF)

OPTION

ONE

OPT

ION

TWO

OPT

ION

THRE

E


QUALITY CONTROL

QUALITY MANAGEMENT

In order to meet the most stringent international standards, Giacomini’s manufacturing facilities in Italy have obtained integrated quality, health & safety and environment certi� cations, in accordance with standards UNE-EN ISO 9001, OHSAS 18001 and EN ISO 14001.

All of Giacomini's Heat Interface Units are pressure tested, both before leaving the factory in Italy and prior to leaving the UK warehouse in Bristol.

Each individual HIU has a test sticker on it showing that it has been pressure tested and electronically tested. Each HIU has its own serial number for traceability purposes.

BESA UK HIU TEST STANDARD

This is the newest and most cited test standard, which looks at the time it takes to reach the required DHW temperature and determines the volume weighted average return temperature (VWART).

BESA Testing is Pending for this product.

WRAS APPROVAL

WRAS approval is Pending for this product.

WARRANTY

Giacomini UK o� er a standard 2-year warranty on all HIUs.

An extended warranty period up to 5 years can be applied to projects that meet Giacomini UK’s extended warranty criteria. For more information on these requirements please email, [email protected].



FLOW CONTROL COMPONENTS

It is important to remember that a Heat Interface Unit is only as good as the system that is supplying it with hot water. For the HIU to get enough thermal energy, it requires two things: design � ow rate and temperature.

Giacomini UK recommends that the below valves are included within the system to help ensure that the HIUs get an adequate � ow, by keeping the water clean and the system well balanced.

For more information on the products mentioned below, please scan the individual codes displayed on this page, or visit uk.giacomini.com/download-area to view the latest Flow Control Brochure.

Hydraulic Separator (R146I)

Magnetic Dirt Separators (R146C)

Boiler Safety Manifold (R555)

Presettable TRVs (R401PTG, R402PTG, R411PTG, R412PTG

& R415PTG)

Giacomini's boiler safety manifold has been designed with consideration to BS6644, which speci� es that plant rooms require additional safety measures when the total boiler load is over 300KW.

GiacominiUnder� oor HeatingBrochure

GiacominiG5/G6 HIU Brochure

Y-Strainers (R74A)

Magnetizable Non-Magnetizable


Giacomini U.K. LtdUnit 2, Goodrich Close, Westerleigh Business ParkYate, South Gloucestershire, BS37 5YT.Tel: 01454 311012 - Fax : 01454 [email protected] - uk.giacomini.com

PLEASE DO NOT HESITATE TO CONTACT US WITH ANY QUESTIONS OR ENQUIRIES

MinibemsScience Park Centre, 6 Babbage Way,

Exeter Science Park, Clyst Honiton, Exeter, EX5 2FNTel: 01392 249110

[email protected] - www.minibems.com

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