Sime GIULIA SYSTEM 25 Installation Instructions Manual

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Cod. 6316191 - 08/2013

6333539 - 05/2023 - R1

Cod. 6316191 - 08/2013

BRAVA DGT HE

Condensing sealed wall-mounted boiler

GIULIA SYSTEM 25

25 - 30 - 35

INSTALLATION AND SERVICING INSTRUCTIONS

USER, INSTALLATION AND SERVICING INSTRUCTIONS

Cod.

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WARRANTY

199838

199839

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Page 1 6333539 - 05/2023 - R1 Cod. 6316191 - 08/2013 BRAVA DGT HE BRAVA DGT HE Condensing sealed wall-mounted boiler GIULIA SYSTEM 25 25 - 30 - 35 25 - 30 - 35 INSTALLATION AND SERVICING INSTRUCTIONS INSTALLATION AND SERVICING INSTRUCTIONS USER, INSTALLATION AND SERVICING INSTRUCTIONS Cod.
Page 2: Appendix
For the first year all of our appliances are protected by our manufacturer’s guarantee which covers both parts and labour. As you would expect from Sime Ltd, it is our aim to provide our valued customers with the best in after sales and service.
Page 4 The Benchmark Scheme Sime Ltd is a licensed member of the Benchmark Scheme which aims to improve the standards of installation and commissioning of domestic heating and hot water systems in the UK and to encourage regular servicing to optimise safety, efficiency and performance.
Page 5 Dear Customer, MANUAL STRUCTURE Thank you for purchasing a Sime GIULIA SYSTEM boiler, a This manual is organized as follows. new-generation condensing modulating device possessing technical and performance characteristics capable of satisfy- ing your heating requirements with the utmost safety and with USER INSTRUCTIONS limited running costs.
Page 6 - close the gas and water valves for the water heating system. – Fonderie SIME S.p.A. reserves the right to make improvements to its prod- – To ensure continued efficient oper- ucts at any time without prior notice,...
Page 7 RESTRICTIONS DO NOT DO NOT – To allow children under the age of 8 to – To block the condensate drain. use the appliance. The appliance can – To pull, detach or twist the electrical be used by children no younger than 8 cables coming out of the appliance years old, by people with physical or even if the appliance is disconnected...
Page 9: Table Of Contents
USER INSTRUCTIONS TABLE OF CONTENTS USING THE BOILER GIULIA SYSTEM 25 MAINTENANCE Control panel ........10 Servicing.
Page 10: Control Panel
USING THE BOILER GIULIA SYSTEM 25 NOTE: pressing any one of these buttons for more than 30 Control panel seconds generates a fault on the display without preventing boiler operation. The warning disappears when the button is released. DISPLAY . This function is NOT USED on these boil- “SUMMER”...
Page 11: Preliminary Checks
Preliminary checks Once the boiler has been operated in "SUMMER mode" "WINTER mode" can be selected by pressing and holding the button for at least 1 second. The internal temperature WARNING of the boiler will appear on the display. Ensure that any timers –...
Page 12: Fault / Malfunction Codes
SHUTDOWN Fault / malfunction codes If a fault/malfunction is detected during boiler operation, the message "AL" will appear on the display followed by the fault Temporary shutdown code. To temporarily interupt the boiler operation press and hold the button for at least one second, once if in "WINTER mode" If you see alarm “02”...
Page 13: Maintenance
– isolate the power supply – isolate the gas cock – close the heating and domestic hot water isolation valves – drain the heating and domestic hot water system if there is the risk of freezing. CAUTION Contact the Qualified Technical Personnel if the pro- cedure described above cannot be easily carried out.
Page 15 DESCRIPTION OF THE APPLIANCE TABLE OF CONTENTS Sensors........20 DESCRIPTION OF THE APPLIANCE Expansion vessel .
Page 16: Description Of The Appliance
Sime Packaging label: for system heating. The main design choices made by Sime for aging and provides a code, the serial number of the boiler the GIULIA SYSTEM boilers are: and the bar code –...
Page 17: Structure
Structure Combustion chamber door Water pressure transducer (TPAC) Exhaust sensor (SF) Air/gas duct System circulator pump Smoke outlet duct (CSFU) Safety thermostat System drainage outlet (SI) Boiler air inlet duct (concentric Air-gas mixer Automatic bleed valve ducts) (CAA) Boiler delivery sensor (SMC) Automatic by-pass Plug/socket for attaching the air in- Condensate siphon...
Page 18: Technical Features
Technical features GIULIA SYSTEM DESCRIPTION CERTIFICATIONS Country of intended installation Fuel G20 /G31 PIN number 1312DN6705 Category II2H3P Type C13 - C33 Class NO 6 (< 56 mg/kWh) DHW rated useful heat output HEATING PERFORMANCE HEAT INPUT (**) Nominal flow (Q max) Minimum (G20-G31) (Q min)
Page 19: Main Water Circuit
GIULIA SYSTEM DESCRIPTION NOZZLES - GAS Number of nozzles Nozzle diameter (G20-G31) 5,3 / 4,2 TEMPERATURE - PRESSURE Max operating temperature (T max) °C Heating adjustment range °C 20÷80 Max operating pressure (PMS) Water content in boiler 2,45 Lower Heat Output (Hi) G20 Hi.
Page 20: Sensors
Sensors Circulation pump The sensors installed have the following characteristics: The flow-head performance curve available for the heating – Dual sensor (thermal safety/output) NTC R25°C; 10kΩ system is shown in the graph below. β25°-85°C: 3435 – External temperature sensor NTC R25°C; 10kΩ β25°-85°C: RESIDUAL HEAD (mbar) 3435 Correspondence of Temperature Detected/Resistance...
Page 21: Control Panel
DISPLAY 5.10 Control panel “SUMMER” . This function is NOT USED on these boil- ers. This symbol appears when the boiler is operating in Summer mode (used when commissioning the boil- er). If the symbols are flashing, this indi- cates that the chimney sweep function is active. .
Page 22: Wiring Diagram
– Connect the earth wire to an effective earthing breaker conforming to EN standards that allows for system. Sime declines all responsible for any injury completely disconnecting the system in overvoltage or damage to persons, animals,or property as a result...
Page 23: Y" Type
5.11.1 "Y" type L N E Caldaia alla rete TA 230V L N E CH ON HW ON HW OFF Live Diverter solenoid valve Neutral Domestic hot water inlet Blue Fuse (3.15AT) Green Mechanical timer Orange Room thermostat Yellow/Green Hot water tank thermostat White Fig.
Page 24 The Benchmark Scheme Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are provided with the correct equipment for their needs, that it is installed, commis- sioned and serviced in accordance with the manufacturer’s instructions by competent persons and that it meets the require- ments of the appropriate Building Regulations.
Page 25 INSTALLATION AND SERVICING INSTRUCTIONS Installer Checklist Please remember to carry out the following checks after installation. This will achieve complete customer satisfaction, and avoid unnecessary service calls. A charge will be made for a service visit where the fault is not due to a manufacturing defect.
Page 26: Installation
INSTALLATION CAUTION Description GIULIA SYSTEM 25 The appliance must only be installed by the Sime W (mm) Technical Service or by qualified professionals who D (mm) suitable protective safety equipment. MUST wear H (mm) Weight (kg) Receiving the product appliances are delivered in a single unit pro-...
Page 27: New Installation Or Installation Of A Replacement
Naturally soft water areas can corrode aluminium heat exchangers. Adding Fernox F1 or Mb-1 will guard against corrosion. – Sime promote the fitting of TF1 System filter with any new boiler installation. – It is important to check the inhibitor concentration after ≥...
Page 28: Plumbing Connections
CAUTION 6.10 Condensate outlet/collection The boiler should be located observing the required To ensure safe disposal of the condensate produced by the clearances, and provide safe, adequate service ac- flue gases, reference should be made to BS6798:2009. cess. The boiler incorporates a condensate trap which has a seal of 75 mm, therefore no additional trap is required.
Page 29: Connecting The Flue
6.12 Connecting the flue CAUTION CAUTION – The appliance must be installed as a room sealed – Prior to fitting the flue, the condensate trap can be device and unless stated in writing from the man- filled by carefully pouring water into the exhaust ufacturer, in accordance with the current edition of section of the flue connection.
Page 30: Installation Of Coaxial Flues 60/100Mm - 80/125Mm
6.12.2 Installation of coaxial flues 60/100mm – 80/125mm Coaxial flue kits that are supplied separately. The diagrams below, illustrate some examples of fluing options allowed and the maximum lengths than can be achieved. It is essential that a flue gas analysis point is made available directly above the boiler. IMPORTANT: –...
Page 31: Installation Of Separate Ducts 80Mm
Before connecting accessories, it is always advisable to lubricate the internal part of the gaskets with silicon products. Avoid using oils and greases. GIULIA SYSTEM 25 GIULIA SYSTEM 25 Load loss - mm H2O Load loss - mm H2O Inlet...
Page 32: Electrical Connections And External Controls
(listed below). For connection de- tails see section "External timers and Room Thermostats"). If this cable needs to be replaced, an original spare must be requested from Sime . DESCRIPTION CODE External sensor kit (ß=3435, NTC 10KOhm at 25°C)
Page 33: External Temperature Sensor
EN607301 connected to TA (see section "Wiring diagram" ) or It is compulsory: by use of a dedicated Sime Remote Control (Home or Home – to use an omnipolar cut-off switch, disconnect Plus). The boiler will automatically detect when a dedicated switch, in compliance with EN standards (contact control is connected.
Page 34: System Solutions
MULTI ZONE system - with zone valve, room thermostat and 6.14 System solutions external sensor. 6.14.1 Heating system solutions External temperature sensor Room thermostat for boiler activation TZ1÷TZ3 Zone ambient thermostat EVZ1÷EVZ3 Zone solenoid valve KA1÷KA3 Zone relays PI1÷PI3 Pump EVZ1 EVZ2 EVZ3...
Page 35: Heating System Solutions "Y" And "S" Type
6.14.2 Heating system solutions "Y" and "S" type System TYPE "Y" - ONE DIRECT ZONE, external sensor and air thermostat. Type "Y" and "S" heating systems are designed to control the central heating system, ensuring that heated water is diverted to the correct areas.
Page 36 MULTI ZONE TYPE "Y" system - with zone valve, air thermostat and external sensor. Y-PLAN SYSTEM EVZ1 EVZ2 EVZ2 Fig. 39 MULTI ZONE TYPE "S" system - with zone valve, air thermostat and external sensor. S-PLAN SYSTEM EVZ1 EVZ2 EVZ2 Fig.
Page 37 MULTI ZONE TYPE "Y" system - with pump, air thermostat and external sensor. Y-PLAN SYSTEM Fig. 41 MULTI ZONE TYPE "S" system - with pump, air thermostat and external sensor. S-PLAN SYSTEM Fig. 42...
Page 38: Refilling Or Emptying
6.15.2 SYSTEM Filling 6.15 Refilling or emptying Before carrying out the operation described below, isolate the Remove the front panel: boiler power supply. – remove the two screws (1), pull the front panel (2) forwards Ensure that the inhibiter concentration is correct on refilling. and release it from the top by lifting it.
Page 39: Emptying Operations
– check the pressure on the pressure gauge (5) and if neces- sary top up until the correct pressure reading appears – close the automatic bleed valve (3) – it is recommended that the condensate trap is filled prior to fitting the flue, by carefully pouring water into the exhaust connection.
Page 40: Commissioning
COMMISSIONING Preliminary operations – press the button once to select "WINTER mode" . The value of the heating water temperature detected at that mo- ment will appear on the display WARNING – Should it be necessary to access the areas in the bottom part of the appliance, make sure that the system components and pipes are not hot (risk of burning).
Page 41: List Of Parameters
– to modify the value in the permitted range, press the but- tons > to increase it or < to decrease it – once the required value has been reached, press the button to confirm. When all the parameter modifications have been made, exit the parameter menu by pressing and holding down the but- tons <...
Page 42 Type Description Range Step Default Minimum power heating/domestic hot water 0 .. 100 (premixed) (NOT used) 0 = Disabled Domestic hot water preheating enabling (NOT used) 1 = Enabled 0 = not used 1 = remote alarm NO 2 = remote alarm NC 3 = zone valve 4 = automatic filling 5 = external request...
Page 43: Display Of Operating Data And Counters
In the event of a fault/malfunction the message "ALL" will ap- When all the values have been displayed, exit the menu by pear on the display with the alarm number eg. "ALL 05" (Deliv- pressing and holding down the button for approximately 5 ery sensor (SM) fault).
Page 44: Checks
– isolate the gas cock Checks – loosen the screw of the “gas mains pressure point” (6) and connect a pressure gauge 7.6.1 Chimney sweep function The chimney sweeper function is used by the qualified mainte- nance technician to check the mains gas pressure, detect the combustion parameters and to measure the combustion effi- ciency.
Page 45: Gas Conversion
– measure the CO and verify that it corresponds to the value Gas conversion appearing in the table. If not, turn the “CO adjuster screw models can be transformed from G20- to G31- GIULIA SYSTEM (splitter)” (7) of the gas valve until you obtain the CO value based operation by installing the “Nozzle kits for G31”, which of the table.
Page 46: Heating Power Output Adjustment
– loosen the ring nut (3) and the spring clip (4) of the gas pipe Heating power output adjustment To comply with Building regulations, the heating output must – detach the gas pipe (5) from the gas valve and from the mix- be set according to the requirements of the installed heating er, making sure that the silicone pipe (6) does not hinder the system.
Page 47: Maintenance
MAINTENANCE – remove the screws (3) securing the control panel (4) Servicing – move the panel (4) upwards (a) but keeping it in the side As a condition of the warranty and to ensure correct operation guides (5) to the end of travel and efficiency, it is important that the boiler is serviced every –...
Page 48: Cleaning The Burner And The Combustion Chamber
8.3.2 Cleaning the burner and the combustion – Unscrew the four nuts (10) securing the combustion cham- chamber ber door (11) – pull the fan/sleeve/door unit (12) forwards and remove it The combustion chamber and the burner do not require any particular maintenance.
Page 49: Checks
Checks Malfunction codes and possible solutions 8.4.1 Checking the flue LIST OF MALFUNCTION/FAULT ALARMS Check that the flue is undamaged and complete. Type Fault Solution 8.4.2 Checking the expansion vessel pressure - Restore pressure Low water pressure in It is recommended that the expansion vessel on the water side - Check for any leaks in the system system...
Page 50 Type Fault Solution Incorrect supply - Contact your network frequency detected provider - Check the ignition/ detection electrode Flame loss more than - Check the gas supply 6 consecutive times (open valve) - Check mains gas pressure - Check that buttons are Button fault working Open Therm...
Page 51 GAS BOILER SYSTEM COMMISSIONING CHECKLIST & WARRANTY VALIDATION RECORD Address: Boiler make and model: Boiler serial number: Commissioned by (PRINT NAME): Gas Safe registration number: Company name: Telephone number: Company email: Company address: Commissioning date: Heating and hot water system complies with the appropriate Building Regulations? Time, temperature control and boiler interlock provided for central heating and hot water Boiler Plus requirements (tick the appropriate box(s)) Weather compensation...
Page 52 SERVICE & INTERIM BOILER WORK RECORD It is recommended that your boiler and heating system are regularly serviced and maintained, in line with manufacturers’ instructions, and that the appropriate service / interim work record is completed. Service provider When completing a service record (as below), please ensure you have carried out the service as described in the manufacturers’ instructions. Always use the SERVICE/INTERIM WORK ON BOILER SERVICE/INTERIM WORK ON BOILER Date:...
Page 53: Exploded Views
EXPLODED VIEWS Frame...
Page 54 Hydraulic assembly...
Page 55 Exchanger / Combustion...
Page 56 Control panel group...
Page 57 Advised Advised Pos. Code Description Pos. Code Description parts parts 6229886 Hydraulic group gasket 2030249 Gasket Ø 24x17x3 6226752 Silicone pipe ring øi12 6229500 Plug 1/2" 6226719 Bushing 6265895 Flowing to C.H. system manifold 6119382 Siphon safety plug 6278935 Heat exchanger water/gas assy 6265835 C.H.
Page 58: Appendix 1 (Guidance Hhic)
10 APPENDIX 1 (GUIDANCE HHIC) Manufacturers Instructions Manufacturer’s instructions must be followed for the correct connection of the condensate discharge pipe from the boiler as this may vary due to the design of the boiler. For example a visible air break and trap is not required if there is a trap with a minimum condensate seal of 75 mm incorporated into the boiler.
Page 59 Figure 1 – Connection of condensate discharge pipe to internal soil and vent stack. Note – Check manufacturer’s instructions to see if an air break is required. Boiler Visible air break 75 mm trap Visible air break and trap not required if there is a trap with a minimum condensate seal of 75 mm incorporated into the boiler Soil and vent stack Invert...
Page 60 Internal Condensate Pipe Discharge Termination Figure 2(a) – Connection of a condensate discharge pipe downstream of a sink, basin, bath or shower waste trap. Note – Check manufacturer’s instructions to see if an air break is required. Boiler Visible air break 75 mm trap Visible air break and trap not required if there is a trap with a minimum condensate seal of 75 mm incorporated into the boiler.
Page 61 Internal Condensate Pipe Discharge Termination Figure 2(b) – Connection of a condensate discharge pipe upstream of a sink, basin, bath or shower waste trap Boiler Visible air break at plug hole – alternative connection can be below sink trap 75 mm sink, basin, bath or shower waste trap Open end of condensate discharge pipe direct into gully 25 mm min below grating but above water level;...
Page 62 Internal Condensate Pipe Discharge Termination The possibility of waste pipes freezing downstream of the connection point should be considered when determining a suitable connection point - e.g. a slightly longer pipe run to an internal soil stack may be preferable to a shorter run connecting into a kitchen waste pipe discharging directly through the wall to an external drain.
Page 63 Internal Condensate Pipe Discharge Termination Figure 3 – Connection of a condensate pump - typical method (NB manufacturer’s detailed instructions should be followed). Note – Any external pipe work should be insulated, pipe cut at 45 degrees and a drain/ leaf Condensate discharge from boiler Condensate pump Visible air break at plug hole...
Page 64 External Connections External Connections pumped connection is impractical to install. The pipe work from the boiler should be of a minimum 19mm ID or as per manufacturer’s instructions and the condensate discharge pipe shall be run in a standard drainpipe material, e.g. poly (vinyl chloride) (PVC), un-plasticized poly (vinyl chloride) (PVC-U), acrylonitrile butadiene-styrene (ABS), polypropylene (PP) or chlorinated poly (vinyl chloride) (PVC-C).
Page 65 External Connections Figure 4 – Connection of condensate discharge pipe to external soil and vent stack Boiler Visible air break 75 mm trap Visible air break and trap not required if there is a trap with a minimum condensate seal of 75mm incorporated into the boiler.
Page 66 External Connections Alternative Solutions Cold weather protection methods approved or endorsed by boiler manufacturers and/or service organisations may be adopted if these are considered suitable by the parties involved. It is the responsibility of the manufacturer of these products to ensure they have completed the necessary testing or calculations to ensure the product offers suitable protection to prevent the condensate pipe from freezing.
Page 67 External Connections Electric Trace Heating condensate pipe to raise the temperature of the condensate pipe in freezing conditions. Trace heating takes the form of an electrical heating element run in physical contact along the length of the condensate pipe. The pipe is usually covered with thermal insulation to retain heat losses from the pipe.
Page 68 External Connections Figure 5 – External termination to rainwater downpipe (NB only combined foul/rainwater drain) Condensate discharge pipe from boiler Pipe size transition point Water/weather proof insulation 43mm 90° male/female bend External rain water pipe into foul water External air break Air gap Minimum internal diameter 19mm Minimum internal diameter 30mm...
Page 69 External Connections External Termination of the Condensate Pipe Where the condensate discharge pipe is terminated over an open foul drain or gully, the pipe should terminate below the grating level, but above water level, in order to minimise “wind chill” at the open end. Pipe drainage and resistance to freezing will be improved if the termination end of the condensate pipe is cut at 45 degrees as opposed to a straight cut.
Page 70 External Connections Figure 6 – External drain, gully or rainwater hopper Boiler Visible air break 38mm minimum trap Visible air break and trap not required if there is a trap with a minimum condensate seal of 38 mm incorporated into the boiler – refer to manufacturers instructions External length of pipe 3 m maximum Open end of condensate discharge pipe direct into gully 25 mm min below grating but above water level;...
Page 71 External Connections Figure 7 – Example of a purpose made soakaway Condensate discharge pipe from boiler Ground (this section of the condensate discharge pipe may be run either above or below round level); End cut at 45° Diameter 100 mm minimum plastic tube Bottom of tube sealed Limestone chippings Two rows of three 12 mm holes at 25 mm centres, 50 mm from bottom of tube and facing...
Page 72 Turn off appliance and call SIME LTD Technical HelplIne for advice. NOTE - if no flue gas sampling point is present and the correct pro- cedure is not specified in the manual, contact SIME LTD Technical the appliance must not be commissio- Helpline for advice.
Page 73: Annexes
12 ANNEXES 12.1 Boiler product board GIULIA SYSTEM C.H. energy efficiency class Heat output (kW) C.H. annual energy consumption (GJ) C.H. seasonal energy efficiency (%) Sound power dB(A) Specific precautionary measures to be adopted at the time of assembly, installation or maintenance of the equipment are contained in the boiler instruction manual Conforming to Annex IV (item 2) of the Delegated Regulations (EU) No.
Page 74: Boiler Technical Sheet
Daily fuel consumption Contact details Fonderie Sime S.p.A. Via Garbo 27, 37045 Legnago (VR) ITALIA a. High-temperature regime means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet. b. Low-temperature regime means for condensing boilers 30°C, for low-temperature boilers 37°C and for other heaters 50°C return temperature.
Page 76 Sime Ltd Unit 6 Flockton Park Holbrook Avenue Holbrook Industrial Estate, Sheffield, S20 3FF Phone: 0345 901 1114 www.sime.co.uk Email: enquiries@sime.co.uk...

Sime GIULIA SYSTEM 25 Installation Instructions Manual

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