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 9 

INTRODUCTION

 

The New Condens FS Series boilers are fully automatically 
controlled, floor standing, fanned, super efficient condensing 
appliances. 
The Siemens LMS14 Boiler Management Unit (BMU) built 
into the appliance is a comprehensive boiler control unit 
which provides all supervisory and control functions re-
quired for burner operation, space heating and DHW heat-
ing. It also offers modular system extensions in the form of 
integrated communication interfaces. 
Through a sophisticated control system combined with wo-
ven mesh premix burner technology and an aluminium heat 
exchanger, the boilers are capable of high operating 
efficiencies of 98.6% (gross) and low emissions. 
The boilers can draw their combustion air from the room or 
via ducting from outside. 
These boilers are certified to meet the requirements of the 
EC 
Gas Appliance Directive, Boiler Efficiency Directive, EMC, 
Low Voltage Directive and 2009/125/EC Ecodesign Di-
rective 

 

FOUNDATION / 

LOCATION OF BOILER 

The

 boiler must stand on a 

oor which must be 

at, level 

and of a suitable load bearing capacity to support the 
weight of  the boiler (when 

lled with water) and  any     

ancillary equipment.

 

Ideally

 the boiler should be placed on a plinth exceeding 

the plan  area of the boiler by 75mm on each side and at 
least 100mm high.

 

The boiler must not be fitted outside.

 

GAS SUPPLY

 

The local gas supplier should be consulted, at the installa-
tion planning stage, in order to establish the availability of 
an adequate  supply of gas.  An existing  service pipe must  
NOT be used without prior consultation with the local gas  
supplier.

 

A gas meter can only be connected by the local gas        
supplier or by a Gas Safe Registered Engineer or in IE by a                   
competent person.

 

An existing meter should be checked, preferably by the gas       
supplier,  to ensure   that the meter is adequate to deal with         
the rate of gas supply required.  A minimum working gas           
pressure of 20mbar MUST be available at the boiler Inlet 
for Natural gas.

 

Do not use pipes of smaller size than the boiler inlet gas              
connection.

 

The complete installation MUST be tested for gas       
soundness and purged in accordance with the appropriate 
standards.

 

Gas Boosters

  

A gas booster is required if the gas pressure       
available at the boiler is lower than that required by 
the boiler manufacturer to attain the flow rate for       
maximum burner input rating.

 

Location of the booster requires careful consideration but       
should preferably be closer to the burner rather than the 
gas meter.

 

Ventilation should also be considered to ensure               

ambient temperature  do not  exceed designed                            
recommendations.   
Further guidance is provided in IGE/UP/2.

 

SAFE HANDLING OF SUBSTANCES

 

No asbestos, mercury or CFCs are included in any part of the 
boiler or its  manufacture.

 

FROST PROTECTION 

The boiler has built into its control system the facility to protect 
the boiler only against freezing. 

The set point for the boilers frost protection can be set via the 
Siemens LMS Controller 

Frost protection is ensured, independent of heat requests or 
connected plant components. Therefore, boiler control checks 
frost protection autonomously and causes the burner to be 
started, if necessary. 

Frost protection for the boiler is activated whenever the boiler 
temperature drops below the frost protection set point. 

 

 

SAFETY 

Current Gas Safety (Installation and Use) Regulations or rules 
in force 

The appliance is suitable only for installation in GB and IE and 
should be installed in accordance with the rules in force. 

In GB, the installation must be carried out by a Gas Safe Reg-
istered Engineer or in IE by a competent person. It must be 
carried out in accordance with the relevant requirements of 
the: 

Gas Safety (Installation and Use) Regulations 

The appropriate Building Regulations either The Building Reg-
ulations, The Building Regulations (Scotland), Building Regula-
tions (Northern Ireland). 

The Water Fittings Regulations or Water byelaws in Scotland. 

The Current I.E.E. Wiring Regulations. 

Where no specific instructions are given, reference should be 
made to the relevant British Standard Code of Practice. 

In IE, the installation must be carried out by a Competent Per-
son and installed in accordance with the current Building Reg-
ulations and reference should be made to the current 

ETCI 

rules for electrical installation. 

The boilers have been tested and conform to EN 15502-1 for 
use with Natural Gas  

Summary of Contents for 303: 304

Page 1: ...NEW CONDENS FS 300 SERIES Cast Aluminium Floor Standing Condensing Boilers for Natural Gas INSTRUCTIONS FOR USE INSTALLATION AND MAINTENANCE Rev 00 12 2015 PB IB300 ...

Page 2: ...lies with the following EU directives Gas Appliance Directive 2009 142 Efficiency Directive 92 42 Low Voltage Directive 2006 95 Electromagnetic Compatibility Directive 2004 108 EN President andLegalRepresentative NEW CONDENS FS 300 SERIES 0051 ...

Page 3: ... appliance The installer must abide by the following instructions Read and follow the instructions given in the manuals provided with the appliance Install the appliance in compliance with prevailing legislation and standards Carry out initial commissioning and any checks necessary Explain the installation to the user If maintenance is necessary warn the user of the obligation to check the applian...

Page 4: ...someone responsible for their safety The unit and its accessories must be appropriately dis posed of in compliance with the current regulations The images given in this manual are a simplified repre sentation of the product In this representation there may be slight and insignificant differences with respect to the product supplied HEALTH SAFETY The electricity at work regulations 1989 The manufac...

Page 5: ...0 160 150 Structural Characteristics Water Contents l 6 5 8 5 10 5 12 5 14 5 Empty weight kg 107 133 164 196 226 Width mm 420 490 490 580 580 Height mm 1220 1220 1220 1240 1260 Depth mm 755 865 1130 1275 1415 Electrical Specifications Power supply voltage V Hz 230 50 Protection level IP 20 Power consumption W 160 190 260 260 320 Water and Gas Fittings Central heating flow outlet 1 1 1 1 1 Central ...

Page 6: ...100 233 87 104 302 R 1 R 80 50 304 488 803 1078 934 380 941 111 281 97 156 394 R 1 R 100 80 305 488 1066 1078 949 394 932 120 284 96 160 374 R 1 R 1 110 80 306 583 1213 1138 945 385 963 127 305 97 183 385 R 1 R 1 125 115 307 583 1309 1138 956 396 945 133 311 110 175 433 R 1 R 1 160 115 ...

Page 7: ...nt 600mm except access doors may be closer but not less than 200mm and 600mm must still be available for service across the width of the boiler Rear 1000mm or adequate space from the rear of the jacket to make the flue connections and access to the flue sample point drain connection flue and any safety or control devices Top 800mm Left side 800mm Right side 800mm Between boilers 200mm Recommended Min...

Page 8: ...s in buildings BS 6880 1 1988 Code of practice for low temperature hot water heating systems of output greater than 45 kW Funda mental and design considerations BS 6880 2 1988 Selection of equipment BS 6880 3 1988 Installation commissioning and maintenance BS EN 13384 1 2015 Chimneys Thermal and fluid dynamic calculation methods Chimneys serving one heating appliance BS EN 13384 2 2015 Chimneys Th...

Page 9: ... soundness and purged in accordance with the appropriate standards Gas Boosters A gas booster is required if the gas pressure available at the boiler is lower than that required by the boiler manufacturer to attain the flow rate for maximum burner input rating Location of the booster requires careful consideration but should preferably be closer to the burner rather than the gas meter Ventilation s...

Page 10: ...om a clean source outside the boiler room building Where it is not possible to duct air from outside the boiler the air inlet guard MUST be used Material With no requirement for buoyancy to discharge flue products and with low flue gas temperatures single wall flues are suitable for most installations Care should still be taken to maintain compliance with building regulations and relevant standards T...

Page 11: ...s a pump must be sup plied from the terminals inside the boiler Note for pumps requiring greater than 1 0 amp current they must be con nected via a relay When sizing pumps reference should be made to the Hydraulic Resistance Table on page 12 which show the boiler resistance against flow rates to achieve the required temperature differential Flow rates for common systems using either 11o C or 20o C ...

Page 12: ...H value and the volume of top up water used It is most important that the correct concentration of the water treatment products is maintained in accordance with the manu facturers instructions If the boiler is installed in an existing system any unsuitable additives MUST be removed by thorough cleansing In hard water areas treatment to prevent lime scale may be necessary In this instance the use o...

Page 13: ... not show safety valves wa ter flow switches etc necessary for the safe operation of the system Cold Feed Pipe Sizes Open Vent Pipe Sizes OPEN VENTED SYSTEM REQUIREMENTS Detail reference should be made to the appropriate standards listed on page 8 The information and guidance given below is not intended to override any requirements of the above publications or the requirements of the local authorit...

Page 14: ...er is specified the flue manifold conden sate drain connection must also be connected in the same manner SEALED SYSTEM REQUIREMENTS Working pressure 6 bar maximum Particular reference should be made to BS 6644 and Guid ance note BG01 Automatically controlled steam and hot water boilers published by the Health and Safety Executive The information and guidance given below is not intended to override a...

Page 15: ... should be 3 core PVC insulated cable NOT LESS than 0 75mm2 24 x 0 2 mm and to BS 6500 The fuse rating should be 7A Wiring external to the boiler MUST be in accordance with the current I E E BS7671 wiring Regulations and any local regu lations For Ireland reference should be made to the current ETCI rules for electrical installations Connection should be made in a way that allows complete isolatio...

Page 16: ...16 Wiring diagram ...

Page 17: ...17 Sensor locations ...

Page 18: ... drain system and trap Ensure the water is circulating correctly between the boiler and the system Ensure the gas valve modulates correctly in heating and domestic hot water modes Put the boiler through several ignition sequences to ensure correct firing operation Using a combustion analyser connected to the boiler flue outlet check that the CO2 content in the fumes with the boiler operating at ma...

Page 19: ...he units memory the information button will need to be pressed again until a percentage figure is shown on the screen Fig 2 The display now shows the boilers power output as a percentage Press the confirmation button once The figure will now flash intermittently Rotate the selection dial until the figure reads 100 Fig 3 Press the confirmation button once more to save this value To reduce the boile...

Page 20: ...chieve the correct CO2 reading shown in the table below Clockwise to decrease anti clockwise to increase Minimum rate adjustment Adjust the modulation rate to minimum 0 as described on page 19 Allow combustion and flame to stabilise then compare CO2 reading to that given in the table below To adjust remove adjustment cover with a flat blade screwdriver Using a 40Torx driver adjust CO2 Clockwise to...

Page 21: ... operation Regular attention will also prolong the life of the boiler and should preferably be performed at the end of the heating season After servicing complete the service section of the log book and return to the owner or their representative Recommend that a contract for this work should be made with the regional gas authority or a Gas Safe Registered Engineer In IE servicing work must be car...

Page 22: ...22 Notes ...

Page 23: ...23 ...

Page 24: ...24 FERROLI S p A Via Ritonda 78 a 37047 San Bonifacio Verona ITALY www ferroli it ...

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