sime Murelle EV HE 25/55 User guide

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MURELLE EV HE

25/55 - 30/55

Installation and

servicing instructions

PLEASE LEAVE THIS INSTRUCTION

WITH THE USER

All descriptions and illustrations provided in this manual have been carefully prepared but we reserve the right to make changes and improvements in our products that may affect the accuracy of the information contained in this manual.

This boiler may require 2 or more operatives to move it into its installation site, remove it from its packaging and during movement into its installation location. Manoeuvring the boiler may include the use of a sack truck and involve lif ting pushing and pulling. Caution should be exercised during these operations.

Operatives should be knowledgeable in handling techniques when performing these tasks and the following precautions should be considered: – Grip the boiler at the base – Be physically capable – Use personal protective equipment as appropriate e.g. gloves, safety footwear.

During all manoeuvres and handling actions, every attempt should be made to ensure the following unless unavoidable and/or the weight is light. – Keep back straight – Avoid twisting at the waist – Always grip with the palm of the hand – Keep load as close to the body as possible – Always use assistance

WARNING

Caution should be exercised when performing any work on this appliance. Protective gloves and safety glasses are recommended. – Avoid direct contact with sharp edges. – Avoid contact with any hot surfaces.

NOTICE

Please be aware that due to the wet testing of the appliance, there may some residual water in the hydraulic circuit. – Protect any surfaces, carpets or floorings. – Use a suitable container to catch any water that escape when removing the protective caps from the connections.

SAFE HANDLING

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.

Benchmark is managed and promoted by the Heating and Hotwater Industry Council. For more information visit www

.centralheating.co.uk

IMPORTANT

When carrying out commissioning of the boiler, you are highly recommended to perform the following checks:

–

Make sure that there are no liquids or inflammable materials in the immediate vicinity of the boiler.

– Make sure that the electrical connections have been made correctly and that the earth wire is connected to a

good earthing system.

– Open the gas tap and check the soundness of the connections, including that of the burner.

– Make sure that the boiler is set for operation for the type of gas supplied.

– Check that the flue pipe for the outlet of the products of the combustion is unobstructed and has been properly

installed.

– Make sure that any shutoff valves are open.

– Make sure that the system is charged with water and is thoroughly vented.

– Check that the circulating pump is not jammed (CAUTION: protect the control panel from any water lost from the

pump.

– Purge the system, bleeding off the air present in the gas pipe by operating the pressure relief valve on the gas

valve inlet.

– Ensure that all the controls and safety devices have been demonstrated to the user.

– Ensure that all the manuals and documentation that are supplied with the boiler are left with the user.

CONTENTS

1 DESCRIPTION OF THE BOILER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 6

2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 10

3 CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 22

4 USE COMMISSIONING, AND MAINTENANCE

(including BENCHMARK/Mains Pressure Hot Water Storage Checklist & Service Record) . . . . . . pag. 27

5 FAULT FINDING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 37

6 REPLACEMENT OF PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 38

7 EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 40

Murelle EV HE 25/55: Gas Council number 47-283-20

Murelle EV HE 30/55: Gas Council number 47-283-21

IPX4D

Important Information

IT IS A STATUTORY REQUIREMENT THAT ALL GAS APPLIANCES ARE INSTALLED BY COMPETENT PERSONS, IN ACCORDANCE WITH THE GAS SAFETY (INSTALLATION AND USE) REGULATIONS (CURRENT EDITION). The manufacturer’s instructions must not be taken as overriding any statutory requirements, and failure to comply with these regulations may lead to prosecution.

No modifications to the appliance should be made unless they are fully approved by the manufacturer.

GAS LEAKS: DO NOT OPERATE ANY ELECTRICAL SWITCH, OR USE A NAKED FLAME. TURN OFF THE GAS SUPPLY AND VENTILATE THE AREA BY OPENING DOORS AND WINDOWS CONTACT THE GAS EMERGENCY SERVICE ON 0800111999.

Please refer to commissioning instructions for filling in the checklist of this installation guide.

Note: All Gas Safe registered installers carry a ID Card.

You can check your installer is Gas Safe Registered by calling 0800 408 5577

1.1 INTRODUCTION

MURELLE EV HE 25-30/55 are premixed

gas condensation thermal modules that employ a microprocessor-based technology to control and manage all the functions. All modules are compliant with European Directives 2009/142/CE, 2004/108/CE, 2006/95/CE and 92/42/CE. For optimum installation and operation, always follow the instructions provided in this manual. The products manufactured and sold by Sime do not contain any banned materials or substances (ie they comply with ISO9000:2000).

1.2 UNPACK AND CHECK THE CONTENTS, AND PACKAGING REMOVAL.

1.2.1 Handling the boiler

Due to the weight of the boiler, take care to avoid personal injury or damage.

1.2.2 Storage Prior to installation

The boiler must be stored horizontally on its pallet prior to installation. Do not stack more than six units.

1.2.3 Unpacking the boiler

The boiler is supplied fully assembled, the kit includes :

- boiler

- valve pack

- guarantee

- these Installation/Users instructions

- wall mounting template.

Remove the strapping and carefully remove the carton and packaging. Check the contents, instructions, valve pack, and hanging bracket. Remove the two bolts securing the boiler to the pallet.

1 DESCRIPTION OF THE BOILER

10 0

15 2

10 0

EU MRG

245

288

15 6

460

19 0

110

ø 60/100

950

400

955

470

600

Fig. 1

1.3 DIMENSIONS

L (mm) Murelle EV HE 25/55 286 Murelle EV HE 30/55 222

SERVICE CLEARANCES

ABOVE THE APPLIANCE CASING 300 mm

AT THE R.H.S. 20 mm

AT THE L.H.S. 20 mm

BELOW THE APPLIANCE CASING 400 mm

IN FRONT OF THE APPLIANCE 500 mm

CONNECTIONS

R C.H. return 22 mm Compression

M C.H. flow 22 mm Compression

G Gas connection 15 mm Compression

E D.H.W. inlet 22 mm Compression

U D.H.W. outlet 15 mm Compression

C Ricirculation 15 mm Compression

S3 Condensation outlet ø 20

Models 25/55 30/55

Heat output

Nominal (80-60°C) kW 23.9 28.9

Nominal (50-30°C) kW 26.2 31.6

Reduced G20 (80-60°C) kW 6.1 7.6

Reduced G20 (50-30°C) kW 7.0 8.5

Reduced G31 (80-60°C) kW 7.5 8.7

Reduced G31 (50-30°C) kW 8.5 9.6

Heat input

Nominal kW 24.5 29.5

Reduced G20/G31 kW 6.5/8.0 8.0/9.0

Max/min useful yield (80-60°C) % 94/97.5 95/98

Max/min useful yield (50-30°C) % 107/107 107/107

Useful yield at 30% of the load (50-30°C) %107 107

Termal efficiency (CEE 92/42 directive)

 

Losses after shutdown to 50°C (EN 483) W/h 90 95

Supply voltage V-Hz 230-50 230-50

Adsorbed power consumption W115 115

Electrical protection grade IP X4D X4D

C.H. setting range °C 20/80 20/80

Water content boiler l 9.6 10

Maximum water head bar 3 3

Maximum temperature °C 85 85

Capacity/pressure of the heating expansion vessel l/bar 10/1 10/1

Normal operating pressure of the system (max) bar 5.5 5.5

D.H.W. setting range °C 30/60 30/60

D.H.W. flow rate (EN 625) l/min 15.5 17.5

Continuous D.H.W. flow rate ∆t 30°C l/min 11.4 13.8 Continuous D.H.W. flow rate ∆t 35°C l/min 9.8 11.8

D.H.W pressure min/max bar 0.2/5.5 0.2/5.5

D.H.W. tank capacity l51 51

Recuperation time between 15 and 60°C min 9’ 55” 10’ 10”

Recuperation heat of 70% contents min 3’ 40” 3’ 30”

D.H.W. expansion vessel capacity / charge pressure l/bar 2.5/3.0 2.5/3.0

Exhaust fumes temperature at max flow rate (80-60°C) °C 70 70

Exhaust fumes temperature at min. flow rate (80-60°C) °C 65 65

Exhaust fumes temperature at max flow rate (50-30°C) °C 40 40

Exhaust fumes temperature at min. flow rate (50-30°C) °C 35 35

Smokes flow min/max kg/h 12/42 14/50

2 at max/min flow rate G20 - G31 % 9.0/9.0 - 10.0/10.0 9.0/9.0 - 10.0/10.0

CE certification n° 1312BS5039 1312BS5039

Category II2H3P II2H3P

Type B23P-53P/C13-33-43-53-83 B23P-53P/C13-33-43-53-83

NOx emission class 5 (< 70 mg/kWh) 5 (< 70 mg/kWh)

Weight when empty kg 68 70

Main burner nozzle

Quantity nozzles n° 1 1

G20/G31 nozzle diameter ø 6.0/4.4 6.0/4.4

Consumption at maximum/minimum flow rate

G20 m

/h 2.59/0.53 3.12/0.66

G31 kg/h 1.90/0.62 2.29/0.62

Gas supply pressure

G20/G31 mbar 20/37 20/37

1.4 TECHNICAL FEATURES

1.5 FUNCTIONAL DIAGRAM

Fig. 2

KEY

1 Fan 2 Air/gas mixer 3 Primary exchanger 4 Limit stat 5 Air relief valve 6 Safety thermostat 100°C 7 C.H. sensor (SM) 8 Flow switch

9 C.H. Expansion vessel 10 D.H.W. tank 11 TPR valve 7 BAR 90°C -TPRV 12 Magnesium anode 13 D.H.W. sensor (SB) 14 C.H. Safety valve 3 BAR 15 Gas valve 16 Pump 17 Diverter valve

18 Auto air vent

19 D.H.W. expansion vessel

20 Water pressure transducer

21 Automatic bypass

23 D.H.W. drain cock 24 Condensate drain tap 25 Gas cock 26 Heating system return cock 27 Heating system delivery cock 30 Pressure reducing valve 3.5 BAR 31 Non-return valve 32 Expansion relief valve 6 BAR 33 Tundish expansion relief valve 34 Filling loop 35 Tundish 36 D.H.W. safety limit stat 85°C

CONNECTIONS R C.H. return M C.H. flow G Gas connection E D.H.W. inlet U D.H.W. outlet C Recirculation S3 Condensation outlet

Fig. 3

1.6 MAIN COMPONENTS

KEY

1 Control panel 2 Pump 3 Gas valve 4 Flow switch 5 C.H. sensor (SM) 6 Condensate drain tap 7Fan 8 Ionisation electrode

9 Ignition electrode 10 Primary heat exchanger 11 Exhaust fumes sensor (SF) 12 Auto air vent

13 Limit st at 90°C 14 Ignition transformer 15 D.H.W. combined temperature

and pressure relief valve 16 Expansion vessel 17 Safety thermostat 100°C 18 D.H.W. sensor (SB) 19 D.H.W. tank 20 D.H.W. expansion vessel 21 Tundish 22 C.H. safety valve 3 BAR 23 D.H.W. safety limit stat 85°C

Where no specific instructions are given, the installation should be in accordance with the relevant recommendations in the current editions of the following British Standards and Codes of Practice: BS 5440-1, BS 5440-2, BS 5449, BS 5482 (propane installations), BS 5546, BS 6700, BS 6798, BS 6891, Institute of Gas Engineer document IGE/UP-7, BS 7074 (expansion vessel), and to other relevant British Standards or code of Practice as necessary. It is a Statutory Requirement that the installation conforms to the appropriate Building Regulations either The Building Regulations, The Building Regulations (Scotland), Building Regulations (Northern Ireland), the Water Fitting Regulations or Water Byelaws in Scotland, and the current I.E.E Wiring Regulations. When handling, due consideration should be given to the appliance weight. If the appliance is not to be installed immediately it should be stored in a clean dry place.

2.1 VENTILATION REQUIREMENTS

Detailled recommendations for air supply are given in BS5440:2. The following notes are for general guidance: – It is not necessary to have a purpose

provided air vent in the room or compartment in which the appliance is installed. However, suitable clearances for maintenance and servicing should be provided, see fig. 1.

2.1.1 Anti-freeze function

The boilers are equipped with anti-freeze function which activates the pump and the burner when the temperature of the water contained inside the appliance drops to below 6°C. The anti-freeze function is ensured, however, only if:

- the boiler is correctly connected to the gas and electricity supply circuits;

- the boiler is turned on;

- the boiler ignition is not locked out;

- the essential components of the boiler are all in working order.

In these conditions the boiler is protected against frost down to an environmental temperature of -5°C.

ATTENTION: In the case of installation in a

place where the temperature drops below

0°C, the connection pipes must be protected.

2.2 BOILER SUPPORT BRACKET

Ensure that the wall on which the boiler is to be mounted is capable of supporting the weight of the boiler when filled (123 kg 25/55 and 125 kg - 30/55)

- Position the bracket ensuring that the boi-

ler is fitted with sufficient clearance to allow for the fitting of the valve connec-

tions.

- Fix the bracket level and with fixings capable of supporting the weight.

- Hang the boiler and then tighten the screws indicated in fig 4.

2.3 HOW TO FIT C.H. AND D.H.W.

FITTINGS AND GAS COCK (fig. 5)

– C.H. CONNECTIONS (R & M)

it the two isolation valves (10) using the gasket supplied (6). Fit the C.H. filling loop between the C.H and D.H.W. circuits, ensuring the correct position and orientation of the isolation valves.

– D.H.W. CONNECTION (E & U)

Fit the supplied; pressure reducing valve (17), check valve (16), and expansion relief valve assembly (14) with its associated tundish (15), ensure that on completion of the installation that the tun dish is visible to the user, in the D.H.W. supply to the appliance, the flow from this assembly should be connected to the cold water inlet (E) via the flow regulator housing supplied. Ensure flow regulator (11) and gasket (1) supplied, are fitted in the flow regulator housing. See fig. 5 and fig. 6 for installation details. It is important that no isolating valve is fitted between the expansion relief valve and the inlet to the D.H.W. tank. Any additional D.H.W. drain down tap fitted should be positioned as low as possible to ensure that at least 80% of the D.H.W. tank’s capacity can be drained. If installed in a Hard Water area, then a suitable device should be fitted to treat the mains supply to the appliance (Contact your Water Distribution Company for advice on suitable devices). Fit the quarter bend (2) to the hot water outlet (U) using the gasket supplied (1).

– GAS CONNECTION (C)

Fit the gas cock (12) to the gas connection (R) using the gasket supplied (6).

2.4 WATER SYSTEMS - GENERAL

This appliance is designed for connection to sealed central heating water systems. Check that the mains water flow is suf ficient to produce the required DHW flow rate but

does not exceed 4 bar pressure.

A expansion relief valve is incorporated within the valve kit. Inlet safety kit and all safety devices must be installed.

or balanced pressures in premises For balanced pressure to the whole premises an additional pressure reducing valve should be installed at the inlet to the premises set at 3.5 BAR.

The maximum water supply pressures to the pressure reducing must be no more than 16 BAR.

2.4.1 Treatment of Water

Circulating Systems

– All recirculatory systems will be subject

to corrosion unless an appropriate water treatment is applied. This means that the efficiency of the system will deteriorate as corrosion sludge accumulates within the system, risking damage to pump and valves, boiler noise and circulation problems.

– For optimum performance after installa-

tion this boiler and its associated central heating system must be flushed in accordance with the guidelines given in BS 7593 “Treatment of water in domestic hot water central heating systems”.

– Sime Ltd recommend only the use of

FERNOX products for the flushing and final treatment of the system water. This is particularly important in hard water areas. Artificially softened water must not be used to fill the heating system.

Failure to flush and add inhibitor to the system may invalidate the appliance warranty.

– It is important to check the inhibitor con-

centration after installation, system modification and at every service in accordance with the manufacturer’s instructions. (Test kits are available from inhibitor stockists).

2.4.2 Requirements for

sealed water systems

The heating system design should be based on the following information: a) The available pump head is given in fig.

2 INSTALLATION

Fig. 4

20.

b) The burner starts when the C.H. flow

reaches 400÷450 l/h. This safety condition is ensured by the flow switch.

c) The appliance is equipped with an inter-

nal by-pass that operates with system heads (H) greater than 3 m. The maximum flow through the by-pass is about 300 l/h. If thermostatic radiator valves are to be installed, at least one radiator should be without a thermostatic valve (usually the bathroom radiator).

d) A sealed system must only be filled by a

competent person using the filling loop as shown in fig 5.

e) To fill the cylinder, open a DHW tap,

then turn on the domestic water supply. When water runs from the tap turn it off. Repeat at each DHW tap.

NOTE: there should be no isolation valve fitted between the cylinder and the expansion valve.

f) To drain the cylinder see fig. 2 number

23.

2.4.3 Discharge Pipes and fittings

The position of any tundish must be visible to the occupants and any tundish, drain valve and discharge pipe and must be sited away from any electrical components. The 7 and 3 bar PRV's are called out with the number 15 and 22 on fig. 3. The connections to the expansion relief valve and temperature and pressure relief valve should not be used for any other purpose. See fig. 6 for example of the discharge pipe(s) for the temperature and pressure relief valve, and expansion relief valve terminations.

Fig. 5

KEY

1 Gasket ø 11,5/18,5 x 2 6 Gasket ø 17/24 x 2 8 Brass olive for 22 mm pipe

9 Locking nut 1-1/8” 10 Cock 3/4” 11 Flow regulator 12

Gas cock 13 Filling loop 14 Expansion relief valve 15 Tundish expansion relief valve 16 Single check valve 17 Pressure reducing valve 18 Curve return system 19 Cur ve flow system

20 D.H.W. outlet pipe

21 Brass olive for 15 mm pipe

22 Locking nut 1/2”

CONNECTIONS G Gas inlet M C.H. flow R C.H. return U D.H.W. outlet E D.H.W. inlet S3 Condensation outlet

DS 3 3 bar discharge DS 7 7 bar discharge

DS 3

DS 7

No isolation valve should be fitted between the cylinder and the expansion valve.

16 15

DS3

ø15

DS7

Note: it is permitted to connect discharge pipes together provided that the joint pipe is sized to accommodate the combined flow.

2.4.4 Expansion Vessel (C.H. only)

C.H. EXPANSION VESSEL – The integral expansion vessel is pre-charged to a pressure of 1.0 bar, which should be checked before the C.H. water system is filled. This vessel is suitable for correct operation of system capacities up to 82 litre capacity. If the actual C.H. system volume is greater, then an additional vessel must be fitted to the system. For systems where the volume is greater, the additional expansion vessel volume can be determined by multiplying the volume in excess of that which can be accommodated by the appliance by the factor 0.901. BS 7074 gives further details regarding C.H. expansion vessel sizing.

2.4.5 Connection of condensation water trap

The drip board and its water trap must be connected to a civil drain through a pipe with a slope of at least 5 mm per metre to ensure drainage of condensation water.

The plastic pipes normally used for civil drains are the only type of pipe which is appropriate for conveying condensation to the building’s sewer pipes.

Fig. 6

Fig. 7

LIST OF ø 60/100 ACCESSORIES

1a-b

Coaxial duct kit L. 790 code 8096250

2a Extension L. 1000 code 8096150 2b Extension L. 500 code 8096151 3 Vertical adaptor code 8086950

IMPORTANT:

- The insertion of each additional 90° bend with a diameter of 60/100 (code

8095850) reduces the available section by 1.5 meters.

- The insertion of each additional 90° bend with a diameter of 80/125 (code

8095870) reduces the available section by 2 meters.

- Each additional 45° curve installed a diameter of 60/100 (code 8095950) the 80/125 (code 8095970) reduces the available length by 1.0 metres.

- During assembly it is important to make sure that the kit with axial pipes (1) is positioned HORIZONTAL FLUES MUST BE LEVEL..

NOTE: Before connecting accessories, it is always advisable to lubricate the internal part of the gaskets with silicon products. Avoid using oils and greases.

Model Length of pipe Length of pipe

ø 60/100 ø 80/125

HV HV

Min Max Min Max

25/55 6 m 1.3 m 8 m 12 m 1.2 m 15 m

30/55 5 m 1.3 m 7 m 10 m 1.2 m 13 m

LIST OF ø 80/125 ACCESSORIES

1a-b Coaxial duct kit L. 785 code 8096253 2a Extension L. 1000 code 8096171 2b Extension L. 500 code 8096170 3 Adapter for ø 80/125 code 8093150 5 Articulated tile 8091300 6 Roof Terminal 8091205

V (VERTICAL - m)

H (HORIZONTAL - m)

H (m)

C33

L (m)

C13

2.4.6 Dealing with condensate (fig.6/a)

Five suitable drainage points

Five suitable drainage points:

1. Internal drain stack pipe

2. Waste water pipe*

3. External drain or gully

4. Rainwater hoppers that carry both rain water and foul water*

5. Purpose-made soakaways

* Care should be taken not to contaminate

any “Grey Water Systems”

Pipework

Condensate pipework should be plastic, same as used for standard wastewater plumbing. Similarly the drainage system where the condensate discharges to should also be resistant to the acid condensate. Pipework should be kept as short as possible. External runs should be avoided, but when necessary be a minimum of 3 meter in 32 mm diameter pipework and lagged to avoid freezing, this also applies to pipe runs in unheated areas such as garages.

To reduce the possibility of condensate being trapped in the pipe, the number of bends should be kept to a minimum. Pipework must be angled down from the boiler with a fall of at least 2.5°. The pipework must be supported at a distance of 0.5 m for inclined runs and 1.0 m for vertical runs.

Condensate traps

Where the condensate drain is not sealed to the discharge connection a trap will be required. The water seal should be 38 mm or more for external discharge and 75 mm or more for internal discharge. When connecting to a external stack the trap should be located within the building.

Stack pipes

Condensate connections should be at least 450 mm above any bend at the bottom of a stack pipe in a single or multi-story dwelling up to 3 storeys. There are specific requirements when connecting to a stack pipe serving multi-storey buildings greater than 3 storeys. All connections to stack pipes should avoid

across flow between other Branch pipes.

Soakaways

Any soakaways have to be purpose-made and located as close to the boiler as possible, but clear of the buildings foundations and any buried services. The best option is to purchase a soakaway from a drainage manufacturer and install it to the manufacturers recommendation.

Condensate disposal

positioning and ter-

mination of the condensate drain pipe

The condensate pipe should run and terminate internally to the house soil and vent stack or waste pipe. Alternatively, the condensate can be discharged into the rainwater system, or into a purpose-made soak away (condensate absorption point). An alternative condensate waste pipe should be considered where the system could be effected by extreme weather conditions. All connecting drainage pipework should have a fall of at least 2.5° to the horizontal, or approximately 50 mm per metre of pipe run.

Pipe slope >2

deg

Internal trap >75mm

>110mm (for 100mm stack)

> 450mm (for up to 3 floors)

100mm Internal stack

Branch pipe

SINK

Height above sink >100mm

Internal trap >75mm

Pipe slope >2

deg

Height above sink >100mm

SINK

> 1m

Section of plastic drain pipe

Holes in side away from dwelling

Ground level

Alternative ground level

Limestone chipping fill

Internal termination of condensate drainage pipe to internal stack

External termination of condensate drainage pipe via internal discharge branch (e.g. sink waste) and condensate syphon

External termination of condensate drainage pipe via internal discharge branch (e.g. sink waste - proprietary fitting) and condensate syphon

External termination of condensate drainage pipe to absorpion point

Fig. 6/a

16 3

286

211

16 6

222

336

15 6

13 0

25/55

30/55

115

19 0

ø 80

ø 60

2.4.7 Filter on the gas pipe

The gas valve is supplied ex factory with an inlet filter, which, however, is not adequate to entrap all the impurities in the gas or in gas main pipes. To prevent malfunctioning of the valve, or in certain cases even to cut out the safety device with which the valve is equipped, install an adequate filter on the gas pipe.

2.4.8 Discharge Pipe

See fig. 6 for example discharge pipe terminations.

2.5 INSTALLATION OF COAXIAL DUCT (ø 60/100 - ø 80/125)

The axial suction and discharge pipes are supplied in a special kit (that can be purchased separately) along with assembly instructions. The diagrams of fig. 7 illustrate some examples of different types of discharge modalities allowed and the maximum lengths that can be reached.

2.6 INSTALLATION OF SEPARATE DUCTS (ø 80)

Separate duct kit code 8089911 is used to

connect twin 80mm pipes. See fig 8. The maximum overall length of the flue is determined by the head losses of the individual components and must not exceed 15mm H2O. Additionally the length of either the inlet or exhaust pipe must not exceed 50 m. See Table 1 for information on the load losses of single accessories and Fig. 9 for types of “smoke outlet”-”air inlet”.

2.6.1 Separate ducts kit

The diagrams of Figure 9 show a few examples of the permitted exhausts configurations.

Fig. 8

TABLE 1 - ACCESSORIES ø 80

Accessories ø 80 Head loss (mm H2O)

25/55 30/55

Inlet Outlet Inlet Outlet

Coaxial duct kit -- -- -- -90° elbow MF 0.20 0.25 0.25 0.30 45° elbow MF 0.15 0.15 0.20 0.20 Extension L. 1000 (horizontal) 0.15 0.15 0.20 0.20 Extension L. 1000 (vertical) 0.15 0.15 0.20 0.20 Wall terminal 0.10 0.25 0.10 0.35 Wall coaxial exhaust

* Roof outlet terminal * 0.80 0.10 1.10 0.15 *

This loss includes the losses of the adaptor 8091401.

LIST OF ø 80 ACCESSORIES

1 Coaxial duct kit code 8089911 2 Additional 90° MF curve code 8077450 (6 pz.) 3 a Extension L. 1000 code 8077351 (6 pz.) 3 b Extension L. 500 code 8077350 (6 pz.) 7 a Additional 45° MF curve code 8077451(6 pz.) 7 b Additional 90° MF curve code 8077450 (6 pz.) 9 Manifold, code 8091401 10 Ar ticulated tile code 8091300 11 Roof terminal code 8091205 13 Union suction/exhaust code 8091401 14 Coaxial exhaust ø 80/125 L. 885 code 8096253A

NOTE Before connecting accessories, it is always advisable to lubricate the internal part of the gaskets with silicon grease. Horizontal terminals must be level.

Fig. 9

KEY CA Inlet CS Outlet

C33

C13

2.7 POSITIONING THE OUTLET TERMINALS

The outlet terminals for forced-draught appliances may be located in the external perimeter walls and roof of the building. To provide some indications of possible solutions, Table 2 gives the minimum distances

to be observed, with reference to the type of building shown in fig. 9.

2.8 ELECTRICAL CONNECTION

The boiler is supplied with an electric cable. Should this require replacement, it must be

purchased exclusively from SIME. The electric power supply to the boiler must be 230V - 50Hz single-phase through a fused main switch, fused at 3 amps with at least 3 mm spacing between contacts. Respect the L and N polarities and the earth connection.

NOTE: SIME declines all responsibility for

–If the terminal discharges into a pathway or passageway check that combustion prod-

ucts will not cause nuisance and that the terminal will not obstruct the passageway.

–Where the lowest part of the terminal is fitted less than 2 m (78 in) above ground,

above a balcony or above a flat roof to which people have access, the terminal MUST be protected by a purpose designed guard.

–Where the terminal is fitted within 850 mm (34 in) of a plastic or painted gutter, or

450 mm (18 in) of painted eaves, an aluminium shield at least 1,500 mm (59 in) long must be fitted to the underside of the painted surface.

–The air inlet/outlet flue duct MUST NOT be closer than 25 mm (1 in) to combustible

material.

–In certain weather conditions the terminal may emit a plume of steam. This is normal

but positions where this would cause a nuisance should be avoided.

Fig. 9

Terminal position Minimum spacing A Directly below an openable window, air vent

or any other ventilation opening 300 mm 12 in

B Below guttering, drain pipes or soil pipes 75 mm 3 in C/D Below eaves, balconies or carport roof (*) 200 mm 8 in E From vertical drain pipes or soil pipes 75 mm 3 in F From internal or external corners 300 mm 12 in G Above adjacent ground, roof or balcony level 300 mm 12 in H From a boundary or surface facing the boiler 600 mm 24 in I From a terminal facing the terminal 1,200 mm 48 in J From an opening in the carport

(eg door, window into dwelling) 1,200 mm 48 in

K Vertically from a terminal on the same wall 1,500 mm 60 in L Horizontally from a terminal on the same wall 300 mm 12 in M Horizontally from a ver tical terminal to a wall 300 mm 12 in N Horizontally from an openable window or other opening 300 mm 12 in P Above an openable window or other opening 300 mm 12 in Q From an adjacent ver tical terminal 600 mm 24 in

TABLE 2

* this distance can be reduced to 25 mm provided surfaces are protected from the

effects of condensate

2.8.6 Use with different electronic systems

Some examples are given below of boiler systems combined with dif ferent electronic systems. Where necessary, the parameters to be set in the boiler are given. The electrical connections to the boiler refer to the wording on the diagram (fig.

11). The zone valve control starts at every

demand for heating of the zone 1 (it is from part of the TA1 or the CR).

Description of the letters indicating the components shown on the system diagrams: M System output R System return CR Remote control CR 73 SE External temperature sensor TA1-2-3-4 Zone room thermostat CT1-2 Zone room thermostat

internal time clock VZ1-2 Zone valve RL1-2-3-4 Zone relay Sl Hydraulic separator P1-2-3-4 Zone pump IP Floor system EXP Expansion card Mixed Zone

(code 8092234) VM Three-way mixer valve

injury or damage to persons ,animals or property, resulting from the failure to provide for proper earthing of the appliance.

2.8.1 Room Thermostat

The heat demand can by a "clean contact" (conforming to EN607301), room stat or programmer connected to the "TA" connection ( fig 11) , CN6 terminals 7&8, af ter removing the link. Alternatively the heat demand can be by a 230v switched control, connected to terminal 14 on connector CN7 and removal of the TA link.

2.8.2 External Control CR 53

A CR 53 external control (part number

8092227),can be connected to the boiler. This will control the heating function of the boiler. The domestic hot water will continue

to be controlled by the boiler keypad.

NOTE: Reset parameter 10 to 2 (PAR 10 = 2).

2.8.3 Remote control CR 73 connection (optional)

The boiler is designed for connection to a remote control unit, supplied on request (code 8092226). The remote control unit CR 73 allows for complete remote control of the boiler, except reset. The boiler display will show the following message:

For installation and use of the remote con-

trol, follow the instructions in the package.

NOTE: Ensure PAR 10 set to 1 (PAR 10 =

1).

2.8.4 External sensor connection

The boiler is designed for connection to an external temperature sensor, supplied on request (code 8094101), which can automatically regulate the temperature value of the boiler output according to the external temperature. For installation, follow the instruction in the package.

2.8.5 Remote RF control

The boiler is designed for connection to RF remote controllers( mechanical - code 8092231 or digital - code 8092232), which can control the central heating function.

1 BASIC SYSTEM

SYSTEM WITH A DIRECT ZONE AND ROOM THERMOSTAT, OR WITH A CLIMATIC REGULATOR CR 53 (Code 8092227) OR WITH REMOTE CONTROL CR 73 (Code 8092226) AND EXTERNAL SENSOR (Code 8094101)

PARAMETERS SETTINGS

If using CR 53 set parameter 10 to 2

(PAR 10 = 2)

CR SE TA1

2 BASIC SYSTEM

MULTI-ZONE SYSTEM WITH PUMP, ROOM THERMOSTAT AND EXTERNAL SENSOR (Code 8094101)

3 BASIC SYSTEM

MULTI-ZONE SYSTEM WITH PUMP, ROOM THERMOSTAT AND EXTERNAL SENSOR (Code 8094101)

4 BASIC SYSTEM

MULTI-ZONE SYSTEM WITH VALVE, ROOM THERMOSTAT, REMOTE CONTROL CR 73 (Code 8092226) AND EXTERNAL SENSOR (Code 8094101)

PARAMETERS SETTINGS

To use the remote control (CR) as remote control panel for the boiler rather than as room reference, set:

PAR 7 = 0

SE TA1

TA 1

TA 2

VZ1

VZ2

TA1 SE

TA 1

RL1

TA 2

RL2

CR SE TA2

TA 1

TA 2

VZ1

VZ2

PARAMETER SETTING

To use the remote control (CR) as room reference for a zone, set: PAR 7 = 1

Set the opening time of the zone valve VZ: PAR 33 = “OPENING TIME”

PARAMETER SETTING

To use the remote control (CR) as room reference for a zone, set: PAR 7 = 1

5 BASIC SYSTEM

MULTI-ZONE SYSTEM WITH VALVE, ROOM THERMOSTAT, REMOTE CONTROL CR 73 (Code 8092226) AND EXTERNAL SENSOR (Code 8094101)

6 BASIC SYSTEM

MULTI-ZONE SYSTEM WITH PUMP, ROOM THERMOSTAT, REMOTE CONTROL CR 73 (Code 8092226) AND EXTERNAL SENSOR (Code 8094101)

CR SE VZ1 TA2

TA 1

TA 2

VZ1

VZ2

TA2 SE CR

TA 1

RL1

TA 2

RL2

8 SYSTEM WITH DOUBLE TEMPERATURE OUTPUT

MULTI-ZONE SYSTEM WITH PUMP, ROOM THERMOSTAT INTERNAL TIME CLOCK AND EXTERNAL SENSOR (Code 8094101)

DURING NIGHT TIME THE BOILER USES A LOWER OUTPUT TEMPERATURE IF DIFFERENT TIMES HAVE BEEN SET FOR DAY AND NIGHT AREAS:

- with external sensor, set the climatic curve of the day zone 1 with PAR 25 and the night zone at PAR 26.

- without external sensor, gain access to setting the day zone 1 by pressing the key and change the value with

the keys and . Gain access to setting the night zone by pressing the key twice and changing the value

with the keys and

7 SYSTEM WITH DOUBLE TEMPERATURE OUTPUT

MULTI-ZONE SYSTEM WITH VALVE, ROOM THERMOSTAT INTERNAL TIME CLOCK AND EXTERNAL SENSOR (Code 8094101)

DAY

ZONE

(70°C)

NIGHT

ZONE

(50°C)

DAY

ZONE

(70°C)

NIGHT

ZONE

(50°C)

CT1

TA1 TA2

VZ1

ZONA GIORNO

(70°C)

CT2

VZ2

ZONA NOTTE

(50°C)

CT1

TA1 TA2

RL1

ZONA GIORNO

(70°C)

CT2

RL2

ZONA NOTTE

(50°C)

11 SYSTEM WITH MIXER VALVE

SYSTEM WITH ONE DIRECT ZONE AND ONE MIXED ZONE

12 SYSTEM WITH MIXER VALVE

SYSTEM WITH TWO DIRECT ZONES AND TWO MIXED ZONES

PARAMETERS SETTINGS

To use the remote control (CR) as remote control panel for the boiler rather than as room reference, set:

PAR 7 = 0

13 SYSTEM WITH MIXER VALVE

SYSTEM WITH TWO MIXED ZONES INDEPENDENT AND TWO KITS ZONA MIX (Code 8092234)

TA 1

TA 2

CR TA1 TA2 SE EXP

EXP

TA 1

TA1 TA2 SE EXP

TA 2

RL2

TA 4

RL4

TA 3

RL3

EXP

TA 2

TA 1

TA1

TA2

EXP

2.9 BOILER ELECTRICAL

Fig. 11

KEY

F1-2 Fuse (4 AT) TRA Ignition transformer PI Pump VFan EA Ignition electrode ER Ionisation electrode EV1-2 Gas valve coil TS Safety thermostat SF Exhaust fumes sensor TL Limit stat SM Heating sensor FL Water flow switch VD Diverter valve TPA Pressure transducer TA1 Zone 1 environment thermostat TA2 Zone 2 environment thermostat SB D.H.W. sensor

CR Remote control CR 73 (optional) SE External sensor (optional) OP Programming clock (optional) EXP Expansion card AR/PR Recirculation pump control

or remote alarm VZ Zone valve AUX Auxiliary connection TLS D.H.W. over heating thermostat 85°

NOTE: Boiler heating control can be by either voltage free switching on terminals 7 & 8 of CN 6 after removal of the link, or by a 240 v demand on terminal 14 CN7 and removal of the link on 7 & 8 on CN6. A permanent power supply must be maintained at all times.

CONNECTOR SPARE PART CODES:

CN1/CN13 code 6316231 CN2 code 6316233 CN3 code 6316276 CN4 code 6316203 CN5 code 6316200 CN6 code 6316202 CN7 code 6316204 CN9 code 6316201 CN10 cod. 6316227 CN11 cod. 6316226 CN12 code 6299991 CN14 code 6316230

3 CHARACTERISTICS

3.1 CONTROL PANEL

2 - DESCRIPTION OF CONTROLS

ON/STANDBAY

ON = The boiler is on STANDBAY = The boiler is off, but the protection func-

tions are active.

SUMMER MODE KEY

When this key is pressed, the boiler functions only when D.H.W. is requested.

WINTER MODE KEY

When this key is pressed, the boiler provides heating and D.H.W.

D.H.W. TEMP KEY

When this key is pressed, the temperature of the D.H.W. is shown on the display.

HEATING TEMP KEY

The first time the key is pressed, the temperature of heating circuit 1 is shown. The second time the key is pressed, the temperature of heating circuit 2 is shown.

RE-SET KEY

Press to reset a resettable error.

INCREASE AND DECREASE KEY

By pressing this key the set value increases or decreases.

3 - KEYS RESERVED FOR THE INSTALLER

(access to INST and OEM parameters)

4 - LUMINOUS BAR

Blue = Operating normally Red = operating error

5 - PROGRAMMING CLOCK (optional)

Mechanical clock (code 8092228) or digital clock (code

8092229) Analogic RF time/temperature programmer (code

8092231), Digital RF time/temperature programmer (code 8092232).

Fig. 12

PC CONNECTION

To be used only with the SIME programming kit and only by authorised personnel. Do not connect other electronic devices (cameras, telephones, mp3 players, etc.) Use a tool to remove the cap and reinsert after use.

ATTENTION: Communication port sensitive to electrostatic charges.

Before use, it is advisable to touch an ear thed metallic surface to discharge static electricity.

INFORMATION KEY

This key can be pressed several times to view the parameters.

CHIMNEY SWEEP KEY

This key is used to engage the chimney sweep function and also used to view the parameters.

DECREASE KEY

This key changes the default settings.

INCREASE KEY

This key changes the default settings.

DESCRIPTION OF DISPLAY ICONS

SUMMER MODE ICON

WINTER MODE ICON

D.H.W. MODE ICON

HEATING MODE ICON

1 = First circuit heating system 2 = Second circuit heating system

GRADED POWER SCALE

The segments of the bar light up in proportion to boiler

power

output .

BURNER FUNCTIONING AND LOCKOUT ICON

RESET REQUIRED

CHIMNEY SWEEP ICON

SECONDARY DIGITS

The boiler displays the value of the pressure of the system (correct value is between 1 and 1.5 bar)

MAIN DIGITS

The boiler displays the values set, the state of anomaly and the external temperature

INTEGRATIVE SOURCES ICON

3.2 ACCESS TO INSTALLER'S INFORMATION

For access to information for the installer, press the key (3 fig. 14). Every time the key is pressed, the display moves to the next item of

information. If the key is not pressed, the system automatically quits the function. List of information:

1. Display of external temperature, only with external sensor connected

2. Display of heating temperature sensor (SM)

3. Display of D.H.W. temperature sensor (SS)

4. Display of auxiliary temperature sensor

6. Display of heating temperature of first circuit

7. Display of heating temperature of second circuit

8. Display of ionisation current in µA

10. Display of the number of hours x100 the burner has been alight (eg 14000 and 10)

11. Display of number of times the burner has ignited x 1000 (eg 97000 and 500)

12. Display of code

of last error

14. Display of total number of errors

5. Display of smoke temperature sensor

13. Display of code of penultimate error

15. Installer parameter access counter

(example =140 accesses)

16. OEM access counter

(example = 48 accesses)

9. Display of fan speed in rpm x 100 (eg 4.800 and 1850 rpm)

1. Visualizzazione temperatura esterna

solo con sonda esterna collegata

2. Visualizzazione temperatura sonda riscaldamento (SM)

3. Visualizzazione temperatura sonda sanitario (SS) solo per caldaie istantanee

9. Visualizzazione numero giri ventilatore in rpm x 100 (es. 4.800 e 1.850 rpm)

10. Visualizzazione ore di funzionamento del bruciatore in h x 100 (es. 14.000 e 10)

11. Visualizzazione numero di accensioni del bruciatore x 1.000 (es. 97.000 e 500)

4. Visualizzazione temperatura sonda

ausiliaria o sonda bollitore (SB)

5. Visualizzazione temperatura sonda fumi

6. Visualizzazione temperatura riscaldamento riferita al primo circuito

7. Visualizzazione temperatura riscaldamento riferita al secondo cir cuito

12. Visualizzazione codice errore ultima anomalia

13. Visualizzazione codice errore penultima anomalia

14. Visualizzazione numero totale delle anomalie

15. Contatore accessi parametri installatore (es. 140 accessi)

8. Visualizzazione corrente di ionizzazione in µA

16. Contatore accessi parametri OEM (es. 48 accessi)

18. Visualizzazione valore sonda mandata impianto miscelato con schedino ZONA MIX 1 (ingresso S2)

17. Visualizzazione portata sanitaria flussimetro (es. 18 l/min e 0,3 l/min) o stato flussostato (rispettivamente ON e OFF)

19. Visualizzazione termostato sicurezza ZONA MIX (ingresso S1) rispettivamente ON e OFF

20. Visualizzazione pompa con schedino ZONA MIX 1 (rispettivamente ON e OFF)

21. Visualizzazione comando apertura valvola con schedino ZONA MIX 1 (rispettivamente ON e OFF)

22. Visualizzazione comando chiusura valvola con schedino ZONA MIX 1 (rispettivamente ON e OFF)

23. Visualizzazione valore della sonda mandata impianto miscelato con schedino ZONA MIX 2

24. Visualizzazione termostato sicurezza con schedino ZONA MIX 2 (ingresso S1) rispettivamente ON e OFF

25. Visualizzazione pompa con schedino ZONA MIX 2 (rispettivamente ON e OFF)

26. Visualizzazione comando apertura valvola con schedino ZONA MIX 2 (rispettivamente ON e OFF)

27. Visualizzazione comando chiusura valvola con schedino ZONA MIX 2 (rispettivamente ON e OFF)

28. Visualizzazione valore temperatura sonda solare S1 con schedino solare INSOL

29. Visualizzazione valore temperatura sonda solare S2 con schedino solare INSOL

30. Visualizzazione valore temperatura sonda solare S3 con schedino solare INSOL

31. Visualizzazione relè solare R1 con schedino solare INSOL (rispettivamente ON e OFF)

32. Visualizzazione relè solare R2 con schedino solare INSOL (rispettivamente ON e OFF)

33. Visualizzazione relè solare R3 con schedino solare INSOL (rispettivamente ON e OFF)

17. Display of D.H.W. flowmeter load (i.e. 18 l/min and 0.3 l/min) or flow switch (respectively ON and OFF)

18. Display of delivery probe value mixed with board Mixed Zone 1

(input S2)

19. Display of safety thermostat Mixed Zone (input S1) respectively ON and OFF

22. Indicator of pump with board Mixed Zone 1 (respectively ON and OFF)

23. Indication of valve opening control with board Mixed Zone 1 (respectively ON and OFF)

24. Indication of valve closing control with board Mixed Zone 1 (respectively ON and OFF)

25. Indication of the plant delivery probe mixed with board Mixed Zone 2

26. Indication of safety thermostat with board Mixed Zone 2 (input S1) respectively ON and OFF

27. Indicator of pump with board Mixed Zone 2 (respectively ON and OFF)

28. Indication of valve opening control with board Mixed Zone 2 (respectively ON and OFF)

29. Indication of valve closing opening control with board Mixed Zone 2 (respectively ON and OFF)

30. Display of solar probe temperature value S1 with solar board

31. Display of solar probe temperature value S2 with solar board

32. Display of solar probe temperature value S3 with solar board

33. Indication of solar relay R1 with solar board (respectively ON and OFF)

34. Indication of solar relay R2 with solar board (respectively ON and OFF)

35. Indication of solar relay R3 with solar card (respectively ON and OFF)

3.3 ACCESS TO INSTALLER'S PARAMETERS

Only qualified persons should alter any of the settings or parameters. Incorrect adjustment would cause defective operation and damage the boiler and would invalidate the warranty.

For access to the installer's parameters, press simultaneously the keys and or 5 seconds (3 fig. 12). For example, the parameter PAR 23 is shown on the display of the control panel in the following way:

The parameters scroll forwards and backwards with the key and and the default parameters can be changed with the keys and . The standard display returns automatically after 60 seconds, or by pressing one of the control keys (2 fig. 12).

3.3.1 Replacement of PCB

Should the PCB be changed, PAR 1 and PAR 2 will require resetting as per the following table.

GAS MODELS PAR 1

- 1

- 2

--3

- 4

- 5

- 6

- 7

- 8

--9

- 10

- 11

- 12

- 13

- 14

- 15

--16

- 17

- 18

- 19

METHANE 25/55 20

(G20) 30/55 21

PROPANE 25/55 22

(G31) 30/55 23

- 24

--25

- 26

- 27

--28

- 29

--30

PARAMETERS INSTALLER

FAST CONFIGURATION

PAR DESCRIPTION RANGE UNIT OF INC/DEC DEFAULT

MEASUREMENT UNIT SETTING

1 Combustion configuration -- = ND = = “--”

1 ... 30

2 Hydraulic configuration -- = ND = = “--”

1 ... 6

1 =

DHW + Recirc. pump

3 Timetable 2 programmer 2 = DHW = = 1

3 = Recirculation pump

4 Pressure transducer disabler 0 = Disabled = = 1

1 = Enabled

5 Assignment of auxiliary relay AUX 1 = Remote supply = = 1

(D.H.W. tank) 2 = Recirculation pump

6 Luminous bar indicating presence 0 = Disabled = = 1

of voltage 1 = Enabled

0 = Not assigned

7 Allocation of CR73 channels 1 = Circuit 1 = = 1

2 = Circuits 1 and 2

8 Fan rpm Step ignition 0,0 ... 81 rpmx100 0,1da 0,1a19,9 0,0

1da 20 a 81

9 Long chimneys 0 ... 20 % 1 0

1 = CR 73

10 Remote control option setting 2 = CR 53 = = 1

3 = RVS

11 Correction values external sensor -5 ... +5 °C 1 0

-- = Always

12 Backlighting duration 1 = Never sec. x 10 1 3

1 ... 199

0 = Minimum

13 Modulating pump speed 1 = Maximum = = 1

2 = Automatic

D.H.W. - HEATING

PAR DESCRIPTION RANGE UNIT OF INC/DEC DEFAULT

MEASUREMENT UNIT SETTING

20 D.H.W. minimum temperature 10 °C ... PAR 21 °C 1 30

21 D.H.W. maximum temperature PAR 20 ... PAR 62 OEM °C 1 60

22 Anti-legionella (only D.H.W. tank) 0 = Disabled = = 0

1 = Enabled

23 Boiler antifreeze 0 ... +10 °C 1 3

24 External sensor antifreeze - 15 ... +5 °C 1 - 2

25 Climatic curve setting Zone 1 3 ... 40 = 1 20

26 Climatic curve setting Zone 2 3 ... 40 = 1 20

27 Minimum temperature Zone 1 PAR 64 OEM ... PAR 28 °C 1 20

28 Minimum temperature Zone 1 PAR 27 ... PAR 65 OEM °C 1 80

29 Minimum temperature Zone 2 PAR 64 OEM ... PAR 30 °C 1 20

30 Maximum temperature Zone 2 PAR 29 ... PAR 65 OEM °C 1 80

31 Maximum heating power 30 ... 100 % 1 100

32 C.H. pump over run time 0 ... 199 Sec. 10 30

33 Pump activation delay Zone 1 0 ... 199 10 sec. 1 1

34 Re-ignition delay 0 ... 10 Min. 1 3

35 Integrative sources activation threshold -- , 15 ... 80 °C 1 “--”

36 D.H.W. pump over run time 0 ... 199 Sec. 1 0

39 Saturation zone modulation -- = Enabled % 1 10

D.H.W. flowmeter 0 ... 100

NOTE: A label on the inside of the clock cover (fig. 19) will show the correct values of PAR 1 and PAR 2 assigned to the boiler."

PARAMETERS INSTALLER

EXPANSION CARD

PAR DESCRIPTION RANGE UNIT OF INC/DEC DEFAULT

MEASUREMENT UNIT SETTING

40 Number of expansion boards 0 ... 3 = 1 0

41 Mix valve stroke time 0 ... 199 10 sec. 1 12

Priority of D.H.W. over mixed zone

0 = Paralle = = 1

1 = Absolute

43 Floor drying 0 = No activated = = 0

1 = Curve A

2 = Curve B

3 = Curve A+B

44 Type of solar system 0 ... 6 = 1 1

45∆t solar collector pump 1 PAR 74 OEM - 1... 50 °C 1 8

46 Solar integration delay “--”, 0 ... 199 Min. 1 0

47 Tmin solar collector “--”, -30 ... 0 °C 1 - 10

48 Tmax solar collector “--”, 80 ... 199 °C 1 120

PARAMETERS RESTORATION

PAR DESCRIPTION RANGE UNIT OF INC/DEC DEFAULT

MEASUREMENT UNIT SETTING

49 * Reset default parameters -- , 1 = = =

(par 01 - par 02 = “-“)

* In case of difficulty in understanding the current setting or in case of an anomalous or

incomprehensible conduct of the boiler, we suggest to restore the initial values of the parameters setting PAR 49 = 1 and the PAR 1 and PAR 2 as specified at point 3.3.1.

BOILER PAR 2

Instantaneous boiler with diverter 1

valve microswitch and flow switch

Instantaneous boiler with

diverter valve microswitch, 2

flow switch and solar combining

25/55 - 30/55 3

Only heating version T 4

Instantaneous boiler with diverter 5

valve and flowmeter

Instantaneous boiler with diverter 6

valve, flowmeter and solar combining

3.4 EXTERNAL SENSOR

If there is an external sensor, the heating settings SET can be taken from the climatic curves according to the external temperature and, in any case, limited to with the range values described in point 3.3 (parameters PAR 25 for zone 1 and PAR 26 for zone 2). The climatic curve to be set can be selected from a value of 3 and 40 (at step 1). Increasing the steepness of the curves of fig. 13 will increase the output temperature as the external temperature decreases.

3.5 CARD FUNCTIONING

The electronic card has the following functions: – Antifreeze protection of the heating

and D.H.W. circuits (ICE). – Ignition and flame detection system. – Control panel setting for the power and

the gas for boiler functioning. – Anti jamming for the pump which is fed

for a few seconds after 24 hours of

inactivity. – Antifreeze protection for boilers with

D.H.W. storage tank. – Chimney sweep function which can be

activated from the control panel. – Temperature which can be shifted with

the external sensor connected.

It can be set from the control panel and

is active on the heating systems of both

circuit 1 and circuit 2. – Management of two independent hea-

ting circuit systems. – Automatic regulation of the ignition

power and maximum heating.

Adjustments are managed automatical-

ly by the electronic card to guarantee

maximum flexibility in use of the system. – Interface with the following electronic

systems: climatic regulator CR 53,

remote control CR 73, thermal regula-

tor RVS and connected to a manage-

ment card of a MIXED ZONE code

8092234.

NOTE: If using CR 53 or RVS set para-

meter 10 to 2 (PAR 10 = 2).

3.6 TEMPERATURE

DETECTION SENSOR

Table 4 gives the values of the electrical

element (Ω) obtained on the DHW and exhaust fumes sensors according to the variations in temperature.

When the heating sensor (SM) and fumes sensor (SF) is interrupted, the boiler will not function.

With the D.H.W. sensor (SB) interrupted the boyler, will function in the CH mode only.

3.7 ELECTRONIC IGNITION

Ignition and flame detection is controlled by electrodes on the burner which guarantees reaction in the case of accidental extinction or lack of gas within one second.

3.7.1 Functioning cycle

Burner ignition should occur within 10

seconds of the opening of the gas valve. If after three attempts the ignition is not detected the boiler will lockout (ALL 06):

– Lack of gas

The ignition electrode will discharge for a maximum of 10 seconds. If af ter three attempts the ignition is not detected the boiler will lockout (ALL

06). This can happen the first time a boiler is switched on, or after long periods of inactivity. It can also be caused by a closed gas cock or a gas valve not operating.

– No ionisation

The boiler will spark for 10 seconds, if after 3 attempts the ionisation is not detected, the boiler will lockout (ALL

06). This could be due to a poor connection or break in the ionisation cable.

TABLE 4

Temperature (°C) Resistance (Ω)

20 12.090 30 8.313 40 5.828 50 4.161 60 3.021 70 2.229 80 1.669

Fig. 13

ATTENTION: curves are calculated at an ambient temperature of 20°C. The user can act on the boiler controls to change the environment set for which the bend has been calculated by ±5°C.

Check

also that the cable is not shorted,

badly worn or distorted.

In the case of a sudden lack of voltage, the burner will immediately switch off.

When voltage returns, the boiler will automatically start up again.

3.8 WATER FLOW SWITCH

The water flow gauge (4 fig. 3) intervenes, blocking burner operation in the case of low pressure or pump failure.

NB: when replacing the flow meter valve, ensure that the arrow printed on its body is pointing in the same direction the water flow.

3.9 HEAD AVAILABLE TO SYSTEM

Residual head for the heating system is shown as a function of rate of flow in the graph in fig. 14.

The speed of the modulating pump is set as default (installation parameter PAR 13=1).

Fig. 14

RESIDUAL HEAD (mbar)

FLOW RATE (l/h)

600

500

400

300

Murelle HE 25-30/55

200

PREVALENZA RESIDUA (mbar)

10 0

200 12001000800600400

25/55

PO RTATA (l/h)

30/55

GENERAL

PLEASE NOTE: During routine servicing,

and after any maintenance or change of part of the combustion circuit, the following must be checked: – The integrity of the flue system and the

flue seals.

– The integrity of the boiler combustion cir-

cuit and the relevant seals.

– The operational (working) gas inlet pres-

sure at maximum rate.

– The combustion performance as descri-

bed in 4.3.2.

4.1 D.H.W. PRODUCTION

Domestic hot water is provided via the internal storage cylinder. This cylinder is fitted with a sacrificial magnesium anode.

The magnesium anode must be checked regularly , at least annually and replaced when required. Failure to replace when required will result in internal damage to the cylinder and void the warranty. See section 6.15 regarding checking and replacement of the anode.

4.2 GAS VALVE

The boiler is supplied as standard with a gas valve, model SIT 848 SIGMA (Fig. 16).

4.3 GAS CONVERSION (fig. 17)

This operation must be performed by authorised personnel using original Sime components.

To conver t from natural gas to LPG or vice versa, perform the following operations –Close the gas cock. –Replace the nozzle (1) and the gasket (2)

using those supplied in the conversion kit.

–Test all the gas connection using leak

detection fluid. Do not use open flames.

–Apply the nameplate with the new gas

flow layout.

–Calibrate the maximum and minimum

pressures of the gas valve following the instructions provided in paragraph 4.3.2.

4.3.1 New fuel configuration

For access to the installer's parameters, press simultaneously keys and for 5 seconds (3 fig. 12). Scroll though the parameters using the and buttons. The parameters will scroll up and down with the keys and . The display pane will show the values of the parameter PAR

1. If the boiler is a 25/55 methane (G20) model, SET 20 will be displayed:

To change the fuel to propane (G31), it is necessary to set SET 22, by pressing the key . The standard display will automatically return after 10 seconds.

The table below shows the SET settings to enter when the type of gas fuel is changed.

4.3.2 Calibrating the gas valve pressures

This can only be done using a flue gas analy-

ser. If the combustion reading is greater than the acceptable value AND the integrity of the complete flue system and combustion seals have been verified, and the inlet gas pressure has been verified then adjustments to the gas valve can be made as described below. Make only small adjustments(1/8 turn max), and allow time for the combustion analysis to be made before making further adjustments.

Sequence of operations:

1) Press and hold the button down for a

few seconds (see 4.5.1)

2) Press the button for a few seconds .

3) Identify the CO2 values at max. power by

adjusting the shutter (5 in Fig. 16):

4) Press the button for a few seconds

5) Identify the CO2 values at min. power by

adjusting the OFF-SET regulation screw (6 in Fig. 16):

Fig. 16

KEY 1 Upstream pressure intake 2 Intermediate pressure intake 3 Air signal inlet (VENT) 4 Downstream pressure intake 5 Capacity step 6 OFF-SET

4 USE COMMISSIONING, AND MAINTENANCE

Fig. 17

MAX power

2 (Methane) CO2 (Propane)

9,0 ±0,3 10,0 ±0,3

MIN power

2 (Methane) CO2 (Propane)

9,0 ±0,3 10,0 ±0,3

GAS MODELS PAR 1

- 1

- 2

--3

- 4

- 5

METHANE 25/55 20

(G20) 30/55 21

PROPANE 25/55 22

(G31) 30/55 23

- 24

--25

--30

6) Press the buttons several times to check the pressures and change them if required.

7) Press the button once more to quit the function.

4.3 CO / CO2 RATIO

4.4 REMOVING THE COVERS

It is possible to completely remove the covers for easier access as shown in fig. 19 . the control panel can be hinged forward after removing the front cover and the retaining screw 3.

4.5 MAINTENANCE

To ensure correct operation and efficiency it is important that the boiler is serviced at

annually and that this is recorded in the Benchmark record sheet (page 35). During the service the condensate drain can be checked. it is important that should the boiler not be used for some time , that the trap is checked and filled if required (see fig. 20).

4.5.1 Chimney sweep function (fig. 21)

To check the boiler combustion(CO2) press the chimney sweep button for a few

Fig. 19

ATTENTION Before removing or refitting the front panel of the boiler, open the small upper plastic door.

SIME Code 8102750 Model MURELLE EV HE 25/55 Serial n. 9999999999 GC No 47-283-15

PAR 1 = 20 (G20) / 22 (G31) PAR 2 = 3

CO ppm

100 400

CO2 %

NG 9%

0,0011 0,0044

LPG 10%

0,0010 0,0040

seconds, the Chimney sweep icon will illuminate. The boiler will ignite and continue for 15 minutes in heating mode. The burner will turn off at 80 degrees and reignite at 70 degrees.

(Warning! Ensure adequate circulation around heating system before activating the Chimney sweep function).

If the and keys are presses during the 15 minutes the boiler will be brought respectively to max and min output. The chimney sweep function will automatically cancel after 15 minutes or if the chimney sweep button is pressed again.

Fig. 20

Fig. 21

4.6 FUNCTIONING ERRORS

Where there is a functioning error an alarm appears on the display. The blue

luminous bar may turn red.

Descriptions of the error are given below:

– FLUE TEMPERATURE

ALARM 01 (fig. 23) Check link on terminals 54-56 at PCB.

– LOW SYSTEM PRESSURE

ALARM 02 (fig. 23/a) If the system pressure detected by the transducer is lower than 0.5 bar the boiler will stop and display error “ALL 02”. Increase the system pressure to between 1.0 and 1.5 bar using the external filling loop. The boiler will automatically resume operating.

– HIGH SYSTEM PRESSURE

ALARM 03 (fig. 23/b) If the system pressure detected by the transducer is more than 2.8 bar, the boiler will stop and display “ALL 03”. Drain water from the system until the pressure is between 1.0 and 1.5 bar. Ensure

that the filling loop is disconnected. If the problem persists, seek technical advice.

– HEATING SENSOR

ALARM 05 (fig. 23/d) If the heating sensor (SM) is open or short cicuit, the boiler will stop operating and display “ALL 05”.

– LOCKOUT ALARM 06 (fig. 23/e)

If a flame is not detected after a complete ignition cycle or for any other reason the flame is not detected, the boiler will stop and display “ALL 06”. Press the reset button on the control panel (2) to restart the boiler. Should the problem persist seek technical help.

– SAFETY THERMOSTAT

ALARM 07 (fig. 23/f) If either the 100 degree stat or the heat exchanger safety stat open, the burner will turn off. If the stat closes within 1 minute, the boiler will resume operation. If the stat remains open for more than 1 minute the display will show “ALL 07”. Press the reset key on the control

panel (2) to restar t the boiler. If the problem persists seek technical advice.

– FLAME DETECTION

ERROR 08 (fig. 23/g) If the flame control detects aflame when one should not be detected, the boiler will stop and display “ALL 08”.

– SYSTEM WATER CIRCULATION

ERROR 09 (fig. 23/h) If the system flow switch detects inadequate circulation, the boiler will stop and the display will show “ALL 09”. If the error persists for more than 1 minute, the boiler will stop and wait for 6 minu-

Fig. 23

Fig. 23/a

Fig. 23/b

Fig. 23/d

Fig. 23/e

Fig. 23/f

Fig. 23/g

Fig. 23/h

tes. The boiler will then attempt to restart. Possible causes of this error are faulty or jammed pump, blocked Aqua Guard filter, closed flow or return valve, blocked heating system.

– D.H.W. SENSOR

ERROR 10 (fig. 23/i) When the D:H.W. sensor is open or short circuited, the display will show error “ALL 10”. The boiler will function in central heating mode only.

– ACTIVATION OF THE EXHAUST FUMES

THERMOSTAT ERROR 13 (Fig. 23/l) (Fig. 23/p) The activation of this probe causes the boiler to stop and error message “ALL 13” to display. Press the key of the controls (2) to start up the boiler again.

– EXHAUST FUMES THERMOSTAT

ERROR 14 (fig. 23/m) If the exhaust fumes thermostat is open or short circuit, the boiler will stop and display “ALL 14”.

– FAN ERROR 15 (Fig. 23/n)

If the fan speed is not within the rated speed range,the display will show “ALL 15 ” . If the problem persists for more than two minutes the boiler will stop thirty minutes, after which it will attempt to resume operating.

– SAFETY THERMOSTAT INTERVENTION

FIRST MIXED ZONE “ALL 20”

(fig. 23/p) When the mixed zone board is connected to the boiler. a safety stat intervention switched the mixed zone pump, the mixed zone valve closes and the display indicates error ALL20. During this error the boiler functions normally.

– DELIVERY PROBE FAILURE FIRST

MIXED ZONE “ALL 21”

(fig. 23/q) When the mixed zone board is connected to the boiler. If the delivery probe sensor becomes open or short circuit the display will indicate ALL21. During this error the boiler will function normally.

– SAFETY THERMOSTAT INTERVENTION

SECOND MIXED ZONE “ALL 22”

(fig. 23/r)

When the mixed zone board is connected to the boiler, intervention of the safety thermostat switches the pump, the mixed zone valve closes and the display indicates ALL22. During this error the boiler functions normally.

– DELIVERY PROBE FAILURE SECOND

MIXED ZONE “ALL 23”

(fig. 23/s) When the mixed zone board is connected to the boiler. If the delivery probe sensor becomes open or short circuit the display will indicate ALL23. During this error the boiler will function normally.

– NUMBER OF CONNECTED BOARDS

ERROR “ALL 29” (fig. 23/y) When the number of connected boards does not correspond to the number of boards set in the PCB (PAR 40) or there is a default of communication with it, on the display the indicates ALL 29 appears. During this error, the boiler continues to function normally.

ATTENTION: If error "ALL 04" is displayed, the setting of PAR 2 is incorrect. Ensure that PAR 2 is set to value 3 (see section 3.3.1).

Fig. 23/i

Fig. 23/l

Fig. 23/m

Fig. 23/n

Fig. 23/p

Fig. 23/q

Fig. 23/r

Fig. 23/s

Fig. 23/y

4.7 COMMISSIONING AND ROUTINE SERVICE

Commissioning and servicing can only be done by a qualified engineer. Before any attempt is made to operate the boiler, ensure that the system and storage cylinder are filled, see section 2.4.2.

4.7.1 Commissioning

PLEASE NOTE: The combustion for this

appliance has been checked, adjusted and preset at the factory for operation on the gas type defined on the appliance data plate. However, it is advisable to check for correct combustion as described in 4.3.2 having first checked: – That the boiler has been installed in

accordance with these instructions.

– The integrity of the flue system and the

flue seals.

– The integrity of the boiler combustion cir-

cuit and the relevant seals

If the combustion reading is greater than the acceptable value AND the integrity of the complete flue system and combustion circuit seals have been verified and the inlet gas pressure (and gas rate) have been verified, contact Sime Service department.

The following procedure should be done after installation and gas purge and soundness/drop test have been made. Ensure that the auto air vent on the pump and on top of the main heat exchanger are opened, turn the electrical supply on. With the boiler on standby fill the system and pressurise to 1.5 bar. Ensure that the pump has been manually rotated. Open the gas Press the " " the boiler will light and heat the storage cylinder to the desired temperature. Press the " ", ensure that any timer or room thermostat are in the on position. The boiler will light and the system will be heated. Set the controls to the required values as shown in the user guide. Complete the Benchmark sheet enclosed in this manual. Explain controls and operation to the user. Leave all documentation with the user.

4.8 ROUTINE SERVICE

To ensure continued efficient operation of the appliance, it is recommended that it is checked and serviced at regular intervals. The frequency of service will depend on the particular installation and conditions of usage, but in general once a year should be adequate, at this service the magnesium anode must be checked, see section 6.15. It is the law that a competent person such as a Gas Safe Register registered engineer,

must carry out any service work.

4.8.1 Combustion Check

Competence to carr y out the check of combustion performance

PLEASE NOTE: BS 6798: 2009 Specifica-

tion for installation and maintenance of gas-fired boilers of rated input not exceeding 70 kW net advises that: – The person carrying out a combustion

measurement should have been assessed as competent in the use of a flue gas analyser and the interpretation of the results;

– The flue gas analyser used should be one

meeting the requirements of BS7927 or BS-EN50379-3 and be calibrated in accordance with the analyser manufacturers’ requirements, and

– Competence can be demonstrated by

satisfactory completion of the CPA1 ACS assessment, which covers the use of electronic portable combustion gas analysers in accordance with BS 7967, Parts 1 to 4.

Connect the flue gas analyzer to the flue gas sampling point as shown in the diagram and check combustion as described in 4.3.2.

During the test the boiler can be operated in “chimney sweep mode” see 4.3.2. The correct CO2 reading can be found in section 1.3.

4.8.2 Burner inspection

Remove the burner as described in section

6.4. Inspect the burner and if necessary clean using a soft brush, taking care not to damage the front insulation. Check the Ignition/ionisation electrode, check the ignition spark gap (4 mm+/- 0.5 mm). Check the ionisation electrode, check the distance from the burner (18.7 mm+/- 1 mm). Before reassembly inspect all seals and replace as required.

4.8.3 Combustion Chamber

Remove any loose debris from the combu-

stion chamber using a soft brush and a vacuum cleaner. Take care not to damage the rear insulation panel.

4.8.4 Condensate Trap

The condensate trap would not normally require removal during service, but can be checked whilst the burner assembly is removed. Carefully pour water into the heat exchanger and check that it flows freely to the drain. Should it require removal, firstly remove the two wire clips securing the condensate drain rubber pipe to the heat exchanger and the condensate trap. Remove the pipe. Remove the 1/2” nut securing the condensate trap to the combustion compartment. Disconnect the drain pipe from the trap. Clean the trap and refit in reverse order.

4.8.5 Flow Switch

The operation of the flow switch should be checked at each service. Remove small cover retaining screw and remove the cover. When the pump is running and water is flowing around the boiler, the actuator lifts releases the micro switch. Check that the operation of the actuator. Ensure that it is free and that it lif ts and returns. If necessary lubricate the pivot point of the actuator. Isolate the boiler. Drain it using the drain provided. Remove the micro switch by carefully pulling it forward off its mounting pins. Remove the screw securing the mounting plate, then pull off the plate. Pull out the actuator pin. Lubricate the centre “O” ring. Refit the actuator ensuring that the flat side of the round section is to the bottom. Re-assemble remaining parts.

Flue test point

Failure to install and commission according to the manufacturer’s instructions and complete this Benchmark Commissioning Checklist will invalidate the warranty. This does not affect the customer’s statutory rights.

If yes, and if required by the manufacturer, has a water scale reducer been ﬁtted?

CONDENSING BOILERS ONLY

The condensate drain has been installed in accordance with the manufacturer’s instructions and/or BS5546/BS6798 Yes

If the condensate pipe terminates externally has the pipe diameter been increased and weatherproof insulation ﬁtted? Yes

Service Record

It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed.

Service Provider

Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions.

Always use the manufacturer’s speciﬁed spare part when replacing controls.

Service 1 Service 2

Date:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

Service 3 Service 4

Date:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

Service 5 Service 6

Date:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Date:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

Date:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

Date:

Engineer Name:

Company Name:

Telephone No.

Operative ID No.

Comments:

Signature:

Service 7 Service 8

Date:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

Service 9 Service 10

Date:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

Date:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

Date:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

MAINS PRESSURE HOT WATER STORAGE SYSTEM COMMISSIONING CHECKLIST

This Commissioning Checklist is to be completed in full by the competent person who commissioned the storage system as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.

Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights .

Customer Name Telephone Number

Address

Cylinder Make and Model

Cylinder Serial Number

Commissioned by

Company Name Telephone Number

Company Address

Commissioning Date

To be completed by the customer on receipt of a Building Regulations Compliance Certiﬁcate

Building Regulations Notiﬁcation Number (if applicable)

ALL SYSTEMS PRIMARY SETTINGS (indirect heating only)

Is the primary circuit a sealed or open vented system? Sealed

What is the maximum primary ﬂow temperature?

ALL SYSTEMS

What is the incoming static cold water pressure at the inlet to the system? bar

Has a strainer been cleaned of installation debris (if ﬁtted)? Ye s N o

Is the installation in a hard water area (above 200ppm)? Ye s

If yes, has a water scale reducer been ﬁtted? Ye s

What type of scale reducer has been ﬁtted?

What is the hot water thermostat set temperature?

What is the maximum hot water ﬂow rate at set thermostat temperature (measured at high ﬂow outlet)?

Time and temperature controls have been ﬁtted in compliance with Part L of the Building Regulations? Yes

Type of control system (if applicable) Y Plan

Is the cylinder solar (or other renewable) compatible? Ye s

What is the hot water temperature at the nearest outlet? °C

All appropriate pipes have been insulated up to 1 metre or the point where they become concealed Yes

(print name) Registered Operative ID Number

Open

S Plan Other

l/min

°C

UNVENTED SYSTEMS ONLY

Where is the pressure reducing valve situated (if ﬁtted)?

What is the pressure reducing valve setting?

Has a combined temperature and pressure relief valve and expansion valve been ﬁtted and discharge tested? Yes No

The tundish and discharge pipework have been connected and terminated to Part G of the Building Regulations Yes

Are all energy sources ﬁtted with a cut out device? Ye s

Has the expansion vessel or internal air space been checked? Ye s

THERMAL STORES ONLY

What store temperature is achievable? °C

What is the maximum hot water temperature?

ALL INSTALLATIONS

The hot water system complies with the appropriate Building Regulations Ye s

The system has been installed and commissioned in accordance with the manufacturer’s instructions Yes

The system controls have been demonstrated to and understood by the customer Ye s

The manufacturer’s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer Yes

Commissioning Engineer’s Signature

Customer’s Signature

(To conﬁrm satisfactory demonstration and receipt of manufacturer’s literature)

llA installations in England and Wales must be notiﬁed to Local Authority Building Control (LABC) either directly or through a Competent Persons Scheme.

A Building Regulations Compliance Certiﬁcate will then be issued to the customer.

bar

°C

www.centralheating.co.uk

SERVICE RECORD

It is recommended that your hot water system is serviced regularly and that the appropriate Service Record is completed.

Service Provider

Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions.

SERVICE 1 Date

Engineer Name

Company Name

Telephone Number

Comments

Signature

SERVICE 3 Date

Engineer Name

Company Name

Telephone Number

Comments

Signature

SERVICE 5 Date

Engineer Name

Company Name

Telephone Number

Comments

SERVICE 2 Date

Engineer Name

Company Name

Telephone Number

Comments

Signature

SERVICE 4 Date

Engineer Name

Company Name

Telephone Number

Comments

Signature

SERVICE 6 Date

Engineer Name

Company Name

Telephone Number

Comments

Signature

SERVICE 7 Date

Engineer Name

Company Name

Telephone Number

Comments

Signature

SERVICE 9 Date

Engineer Name

Company Name

Telephone Number

Comments

Signature

SERVICE 8 Date

Engineer Name

Company Name

Telephone Number

Comments

Signature

SERVICE 10 Date

Engineer Name

Company Name

Telephone Number

Comments

Signature

If an electrical fault occurs on the appliance the preliminary electrical system checks must be carried out first. When any service or replacement of electrical components which has required the breaking and re-making of electrical connections has taken place, the following tests must be repeated: – ear th continuity; – shor t circuit; – polarity; – resistance to ear th.

5.1 EARTH CONTINUITY CHECK

Appliances must be electrically disconnect-

ed, meter set on Ω (ohm) x 1 scale and

adjust zero if necessary. Tests leads from any appliance earth point (e.g. inside control box) see wiring diagrams (section 7) to earth pin on plug.

Resistance should be less than 1 Ω (ohm). If the resistance is greater than 1 Ω (ohm)

check all earth wires for continuity and all contacts are clean and tight. If the resis-

tance to earth is still greater than 1 Ω

(ohm) then this should be investigated futher.

5.2 SHORT CIRCUIT CHECK

Switches turned FULL ON - meter set on Ω

(ohms) x 1 scale. Test leads from L to N on appliance terminal block, if meter reads 0 then there is a short circuit.

Meter set on Ω (ohm) x 100 scale. Repeat

it with leads from L to E. If meter reads less

than infinity (∞) there is a fault.

NOTE: Should it be found that the fuse has failed but no fault is indicated, a detailed continuity check (i.e. by disconnecting and checking each component) is required to trace the faulty component. It is possible that a fault could occur as a result of local burning/arcing but no fault could be found under test. However, a detailed visual inspection should reveal evidence of burning around the fault.

5.3 POLARITY CHECK

Appliance reconnected to mains supply and meter set on 300 V ac scale. Test at appliance terminal block. – Test leads from L to N meter reads

approx.: 240 V ac.

– Test leads from L to E “ ” meter reads

approx. 240 V ac.

–

Test leads from N to E “ ” meter reads from 0 to 15 V ac.

5.4 RESISTANCE TO EARTH CHECK

Appliance must be disconnected from main

supply and meter on Ω (ohm) x 100 scale.

All switches including thermostat on test leads from L to E - if meter reads other than

infinity (∞) there is a fault which should be

isolated. A detailed continuity check is required to trace the faulty component.

IMPORTANT: These series of checks are the first electrical checks to be carried out during a fault finding procedure. On completion of the service/fault finding task which has required the breaking and remaking of electrical connections then the checks 5.1 Earth continuity, 5.3 Polarity and 5.4 Resistance to earth must be repeated.

5 FAULT FINDING

6 REPLACEMENT OF PARTS

6.1 EXPANSION VESSEL

– Turn of f power supply – Remove boiler cover, see 4.4. – Isolate flow and return valves – Drain boiler using fitted drain vent – Disconnect expansion pipe – Loosen top fixing screw and remove

lower expansion vessel locking nut.

– Remove vessel and transfer the fixing

bracket to the new vessel.

– Check new vessel for correct pressu-

re 1- 1.25 bar

– Refit in reverse order.

6.2 IGNITION ELECTRODE

– Turn of f power supply – Remove boiler cover see 4.4 – Remove sealed chamber cover – Disconnect electrode from ignition

transformer – Pull lead through grommet – Remove electrode fixing screw – Carefully remove electrode from bur-

ner – Replace in reverse order.

6.3 IONISATION ELECTRODE

– Turn of f power supply – Remove boiler cover see 4.4 – Remove sealed chamber cover – Disconnect electrode – Remove electrode fixing screw – Carefully remove electrode from bur-

ner – Replace in reverse order

6.4 MAIN BURNER

– Turn of f power supply – Isolate gas supply – Remove boiler cover – Remove sealed chamber cover – Disconnect gas connection at injector – Disconnect air sensing tube – Disconnect two plugs to fan – Remove ignition electrode 6.3 – Disconnect ionisation electrode – Remove 6 x 10mm nuts securing bur-

ner to heat exchanger – Carefully lift out burner assembly – Refit in reverse order – Test for gas tightness.

6.5 FAN ASSEMBLY

– Remove burner assembly as descri-

bed in 6.4 – Remove 2 x 8mm bolts and loosen 2 x

8mm securing fan to burner assembly – Remove restrictor plate and fit to

new fan – Refit in reverse order – Recommission boiler – Test for gas soundness.

6.6 MAIN HEAT EXCHANGER

– Turn off power supply

– Isolate gas supply – Isolate flow and return valves – Drain boiler using drain vent – Remove burner assembly as described

in 6.4 – Remove flue connection – Disconnect flue sensor – Disconnect limit stat – Remove condensate drain connections – Disconnect flow and return connections – Remove two fixing brackets – Lif t out heat exchanger – Refit in reverse order – Recommission boiler – Test for gas tightness.

6.7 FLUE SENSOR

– Turn of f power supply – Remove cover – Remove sealed chamber cover – Disconnect flue sensor – Unscrew sensor – Replace in reverse order.

6.8 100° SAFETY STAT

– Turn of f power supply – Remove cover – Remove sealed chamber cover – Disconnect 100° safety stat – Remove fixing screws – Refit in reverse order.

6.9 HEATING THERMISTOR

(SM SENSOR)

– Turn off power supply – Remove cover – Remove sealed chamber cover.

– Isolate flow and return valves – Drain boiler using drain vent – Disconnect thermistor – Unscrew thermistor (catch any water

lost)

– Refit in reverse.

6.10 D.H.W. THERMISTOR (SB) SENSOR

– Turn off power supply – Remove cover see 4.4 – Isolate cold water supply valve – Drain the cylinder – Disconnect thermistor – Unscrew thermistor (catch any water

lost)

– Refit in reverse.

6.11 GAS VALVE

– Turn off power supply – Isolate gas supply – Remove boiler cover see 4.4 – Disconnect wiring from gas valve – Disconnect sensing tube – Remove gas valve – Refit in reverse order ensuring seals

are replaced as required

– Setting the gas valve procedure:

1. Open the downstream test point (4 fig. 25) and connect a digital manometer set on the mmH20 scale. Ensure the meter is zeroed.

2. Fully open the SHUTTER (5 fig.

25) -turn anti clockwise

3. Press and hold the button for 10 seconds to enter “chimney sweep” will appear flashing on

KEY 1 Upstream pressure intake 2 Intermediate pressure intake 3 Air signal inlet (VENT) 4 Downstream pressure intake 5 Capacity step 6 OFF-SET

Fig. 25

the display and the boiler runs at minimum power.

4. With the SHUTTER (5 fig. 25) fully open, adjust the OFF-SET (6 fig.

25) to obtain the first pressure value shown in Table 1 - OFF-SET column, ensure that the value is correct for the gas being used. If these figure are not obtainable (low), confirm that the working inlet gas pressure is correct.

5. Press the button, the boiler will increase to maximum power.

6. Close the SHUTTER (5 fig. 25) to obtain the second pressure reading indicated in Table 1 – SHUTTER column.

7. Once these adjustments have been obtained, a combustion check (flue gas analysis) must be done. See section 4.3.2.

8. Press the button to return the boiler to minimum output.

9. Now connect the flue gas analyser.

10.Check the analyzer CO2/Ratio and compare to values reported in Table 1. Make any final adjustments by small adjustments to the OFF-SET screw (6 fig. 25), allow time for the analyser to respond to the adjustments.

11. Press the button, the boiler will move to maximum output. Verify that the CO2/Ratio. Make any final adjustments by small

adjust-

ments to the SHUTTER (5 fig.

25) allow time for the analyser to respond.

12. Recheck the low reading by pressing the button.

13. Press the Standby key to exit.

14.Remove the manometer and analyser, close the test points, and check for tightness.

– Check for gas tighhtness.

6.12 PRINTED CIRCUIT BOARD (PCB)

– Isolate from power supply – Remove screw securing control panel – Lower panel to horizontal position – Remove PCB covers – Disconnect all wiring – Remove PCB fixing screws – Ensure any PCB links are matched to

old board

– Reset PAR 1 and PAR 2 as per the

table 3.3.1 – Refit in reverse order – Recommission boiler.

6.13 PUMP MOTOR

– Turn of f power supply – Remove boiler cover – Isolate flow and return valves – Drain boiler using drain vent – Remove plug connection – Remove 4 x fixing screws, catch any lost

water

– Refit in reverse using new gasket.

6.14 DHW EXPANSION VESSEL

- Turn off power supply

- Remove boiler covers

- Isolate DHW supply

- Drain the cylinder

- Disconnect the DHW expansion vessel

- Check the pressure of the new cylinder (3 bar)

- Refit in reverse order

6.15 SACRIFICIAL MAGNESIUM

ANODE

This is located in the base of the cylinder.

- Turn off the power supply

- Turn off the domestic water supply to the boiler.

- Open a DHW tap.

- Connect a suitable drain hose to the cylinder drain cock.

- Open the drain cock.

- When fully drained, remove and examine the anode.

- If required replace the anode.

- Refit in reverse order

- See section 2.4.2 for refilling instructions.

7 EXPLODED VIEWS

COD. TYPE D

3830050/617 MURELLE EV HE 25-55/30-55 18.06.2009 1/4

AT E PA

COD. TYPE D

3830050/617 MURELLE EV HE 25-55/30-55 18.06.2009 2/4

AT E PA

ETONLEDOMNOITPIRCSEDEDOCNOITISOP

35 • 6013102 Automatic air vent 1/4”

36 6277131 Probe NTC D.4X47

37 6098315 Ignition transformer

38 5194303 Insulated stainless steel tank 55 l

39 6029002 Pressure relief valve 1/2” - 7 bar

40 6124818 Circulating pump Grundfos UPS 15-60

41 6040209 Pressure relief valve

42 6226621 Pressure relief valve fixing spring

43 6087304 Motor for Honeywell diverting valve

44 6073318 Circulating pump fixing bracket

45 6277928 Pipe connecting pump-exchanger 25/55

45 A 6277929 Pipe connecting pump-exchanger 30/55

46 • 6226601 Spring for heat exchanger connection

47 6216233 C.H. system flow pipe 25/55

47 A 6216234 C.H. system flow pipe 30/55

48 • 6146700 Limit stat auto reset

49 • 6149303 Flow water switch 25/55

49 A 6149309 Flow water switch 30/55

50 6277713 Main exchanger outlet pipe

51 • 6146701 100°C safety stat

52 • 6231351 Plunged sensor

53 6216016 D.H.W. cylinder return pipe

54 • 6273603 Water pressure transducer

55 6157634 Pressure relief valve drain pipe

56 6157633 Pressure relief valve drain pipe

57 6269405 Tundish

58 6157635 Tundish drain pipe

59 6100202 Ogive for pipe Ø 15

60 6168401 Locking nut for pipe Ø 15

61 5183722 Rectang. expansion vessel 10 l.

62 6013181 Automatic air vent

63 6267109 D.H.W. expans. vessel locking bracket

64 • 6245102 Sanitary D.H.W. tank - 2.5 L.

65 6073312 Expansion vessel suppor t

66 6227644 D.H.W. expansion vessel connect. pipe

67 6226878 Gas inlet pipe

68 6243823 Gas valve type

69 6277413 Pipe connecting gas valve-mixer

ETONLEDOMNOITPIRCSEDEDOCNOITISOP

EPYT .DOC EGAPETAD

3830050/617 MURELLE EV HE 25-55/30-55 18.06.2009 3/4

1 6138558 Right/left hand side frame part

2 6138895 Frame assembly lower side

3 6138711 Frame assembly upper support

4 6256714 Sealed chamber rear suppor t

5 6266036 Sealed chamber rear panel 25/55

5 A 6266037 Sealed chamber rear panel 30/55

6 6010810 Smoke chamber fixing panel 25/55

6 A 6010811 Smoke chamber fixing panel 30/55

7 6266123 Sealed chamber right hand side panel

8 6266122 Sealed chamber left hand side panel

9 6267103 Sealed chamber fixing bracket

10 • 6277204 Water trap

11 6010813 Main exchanger L.H. side support

12 6010815 Main exchanger R.H. side support

13 6029100 Blind inlet flange

14 5188316 Complete main exchanger 25/55

14 A 5188317 Complete main exchanger 30/55

15 • 6146721 Limit stat

16 6269007 Main exchanger door insulation

17 6278852 Main exchanger door

18 6278351 Burner

19 • 6174817 Gasket for burner flange

20 6278802 Air-gas hose

21 • 6174809 Gasket for ignition electrode

22 6221632 Ignition electrode

23 • 6221623 Ionisation electrode

24 6174812 Mixer/hose gasket

25 6239206 Mixer closing plate

26 6274306 Air/gas mixer

27 6274121 Burner nozzle ø 6,00 natural gas

27 A 6274120 Main burner nozzle Ø 4,04 LPG

28 6261408 Fan

29 6174816 Gasket for fan flange

30 6028647 Air diaphragm 25/55

31 6034150 Condensate drainage pipe

32 6034151 Condensate drainage pipe

33 6010812 Main exchanger R.H. fixing bracket

34 6010814 Main exchanger fixing bracket

Fonderie Sime S.p.A. - Via Garbo, 27 - 37045 Legnago (Verona) - Tel. +39-0442-631111 - Fax +39-0442-631292 - www.sime.it

• Recommended stock par ts - Com ponenti da tener e a scorta

ETONLEDOMNOITPIRCSEDEDOCNOITISOP

5197152 Complete control panel

5197002 Brass hydraulic group

6316230 3 pole cable connector

6299991 4 pole cable connector

6316231 5+4 pole cable connector

6316276 9 pole Stocko connector

6316233 14 pole cable connector

6316200 Connector 2 poli

6316202 Connector 4 poli

6316203 Connector 4 poli

6316204 Connector 8 poli

6285001 Ionisation lead L=1200

5191830 Water press.reduc.-press.relief valve

6281534 Gaskets kit

5185130 Conversion kit to LPG

6231330 Temperature sensor L=1120

Products reference:

8102750: Murelle EV HE 25-55 GB

8102752: Murelle EV HE 30-55 GB

Check the correspondence with the boiler data plate.

108 6248851 Smoke chamber outlet gasket

109 6248856 Smoke chamber/heat exchanger gasket

110 6226623 Divertor valve spring

111 6146603 Filling cock 5197001 group

ETONLEDOMNOITPIRCSEDEDOCNOITISOP

EPYT .DOC EGAPETAD

3830050/617 MURELLE EV HE 25-55/30-55 18.06.2009 4/4

70 6280500 3-ways junct. with press. test nipple

71 6228865 Sealed chamber front panel

72 5192204 Gasket for sealed chamber

73 6001210 Peephole

74 6304700 Control panel

75 6305160 Guidelight with led

76 6305120 Kit Rubber button

77 6247327 Cap for time programmer

78 6304890 Flap door assembly

79 6301495 Main PCB

80 2211610 Earth faston

81 6305000 Cover

82 6305010 connection cover

83 6305020 Time programmer cover

84 6278701 Smoke chamber

85 6131401 Microswitch for flowmeter

86 6242117 Casing right hand side panel

87 6242217 Casing lef t hand side panel

88 6304232 Casing front panel

89 6179100 Drain cock 3/8”

90 6157630 Cold water inlet pipe

91 6142427 C.H. flow pipe

92 6177505 Ball cock 3/4” x 22

93 6177530 Gas cock 3/4” F x 15

94 6142572 Pipe connecting jig

95 6120519 Adapter

96 6142426 C.H. return pipe

97 6037580 Water pressure reducer 3/4”

98 6265850 5 ways water collector

99 6040208 Pressure relief valve

100 6157628 PRV drain pipe

101 5199100 Filling Loop

102 6258312 D.H.W. cylinder counterflange

103 6052705 Gasket for D.H.W. cylinder flange

104 6258311 D.H.W. cylinder flange

105 6072708 Magnesium anode + plug 3/4” + OR

106 6215211 Hanging bracket

107 6179200 Holder complete with locking nut

Fonderie Sime S.p.A. - Via Garbo, 27 - 37045 Legnago (Verona) - Tel. +39-0442-631111 - Fax +39-0442-631292 - www.sime.it

• Recommended stock par ts - Com pon enti da tenere a scorta

Dealing with Condensat

Five suitable drainage points

1. Internal drain stack pipe

2. Waste water pipe *

3. External drain or gully *

4. Rainwater hoppers that carry both rain water and foul water *

5. Purpose-made soakaways

* Care should be taken not to contaminate any “Grey Water Systems”

Pipework Condensate pipework should be plastic, same as used for standard wastewater plumbing. Similarly the drainage system where the condensate discharges to should also be resistant to the acidic condensate. Connection to the internal trap in the boiler can be achieved by using a 20mm solvent weld socket. Pipework should be kept as short as possible. External runs should be avoided, but when necessary be a minimum of 3 meters in 32mm diameter pipework and lagged to avoid freezing, this also applies to pipe runs in unheated areas such as garages. To reduce the possibility of condensate being trapped in the pipe, the number of bends should be kept to a minimum. Pipework must be angled down from the boiler with a fall of at least 2.5. The pipework must be supported at a distance of 0.5m for inclined runs and 1.0m for vertical runs.

Condensate traps Where the condensate drain is not sealed to the discharge connection a trap will be required. The water seal should be 38mm or more for external discharge and 75mm or more for internal discharge. When connecting to a external stack the trap should be located within the building.

Stack Pipes Condensate connections should be at least 450mm above any bend at the bottom of a stack pipe in a single or multistory dwelling up to 3 storeys. There are specific requirements when connecting to a stack pipe serving multi-storey buildings greater than 3 storeys. All connections to stack pipes should avoid across flow between other Branch pipes.

Soakaways Any soakaways have to be purpose-made and located as close to the boiler as possible, but clear of the buildings foundations and any buried services. The best option is to purchase a soakaway from a drainage manufacturer and install it to the manufacturers recommendation.

Cod. 6274297 - 08/10 - Documentation Dpt.

Sime Ltd

1a Blue Ridge Park Thunderhead Ridge Glasshoughton, Castleford, WF10 4UA

Phone: 0845 9011114 Fax: 0845 901111 5

www.sime.ltd.uk Email: enquiries@sime.ltd.uk

sime Murelle EV HE 25/55 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual