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 10 

FLUE INSTALLATION

 

IMPORTANT. 

It is the responsibility of the installer to 

ensure,  in practice, that products of combustion dis-
charging from the terminal cannot re-enter the building 
or any other adjacent building through ventilators, win-
dows, doors, other sources of natural air infiltration, or 
forced ventilation / air conditioning.

 

If this should occur the appliance MUST be isolated from 
the

 

gas supply and labelled as 'unsafe' until corrective   

action can be taken.

 

Terminal Position

 

Due to the high efficiency of the boilers pluming will occur.

 

Particular care should be taken in the case of large output 
boiler installations in complying with the requirements of the 
Clean Air  Act.

 

The flue must be installed in accordance with the appro-
priate Building Regulations and standards listed on 

page 

and in compliance with BS6644.  In IE refer to 

I.S.820:2000.

 

FLUE SYSTEM DESIGN

 

Due to the high efficiency of these boilers, the flue gas 
temperatures are low and the buoyancy in the stack will be 
relatively small.  The boiler is supplied with an integral fan 
which is fully matched to the boiler in each case to provide 
correct combustion air flow and overcome the flue re-
sistance.

 

The power of this fan is such that there is a large reserve of 
pressure available to overcome a significant length of flue 
without  affecting the combustion performance of the boiler. 
The maximum  pressure available at the base of the flue to 
overcome flue resistance is 

shown in the table below.

 Cal-

culations should include the resistance of any

 

air ducts 

used to connect the air inlet direct to outside air.  Care 
should be taken with tall flue systems to ensure excess 
buoyancy is not created.  A negative pressure must not be 
created at the boiler flue outlet. All horizontal flue lengths 
must have a fall back to the boiler of 3°

 

See table below for approximate maximum straight flue 
length

.

 

IMPORTANT NOTE.

 

If combustion air is drawn from within the boiler room, 

ensure no dust or airborne debris can be ingested into 
the appliance.  Dusty concrete flooring should be 

sealed to reduce the presence of dust.  Ideally where 

possible duct the air supply into the boiler room from 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.

 

The flue used should be a suitably approved flue for use 
on a pressurised condensing flue system.  Materials 
choice includes plastic, aluminium and 316 grade    
stainless steel.  

Unless the flue is manufactured from 

aluminium, the condensate from the flue must be 
collected and drained before entering the sump of 
the boiler 

(when employing the vertical combined 

(cascade) flue outlet header, a flue condensate drain is 
provided for this purpose).

 

Advice  regarding  the  availability  of  proprietary  types  of 
flue system can be obtained by contacting Ferroli Ltd.  All 
joints  or  connections  in  the  flue  system  must  be  
Impervious to condensate leakage.

 

Low points in the flue system should be drained using 
pipe of material resistant to condensate corrosion.  All 
drains in the flue should incorporate a water trap.

 

Care should also be taken in the selection of flue      
terminals as these tend to accentuate the formation of a 
plume and could freeze in cold weather conditions.

 

Care should be taken to ensure the specification of the 
chimney is suitable for the application by reference to 
the manufacturers literature.

 

The addition of elbows and their positions in the flue will 
have a significant effect on the maximum allowable flue and 
air duct lengths. Consult with your flue supplier for detailed 
design work 

C63 = A room sealed appliance intended to be 

  connected to a separately approved and 
  marketed system for the supply of combustion 
  air and discharge of combustion products. 
  The fan is up stream of the combustion 
  chamber. 

B23 = An appliance intended to be connected 

 to a flue which evacuates the products 
 of combustion to the outside of the room 
 containing the boiler. The combustion air is 
 drawn directly from the room. The fan is up 
 stream of the combustion chamber. 

Boiler Type  (PD CEN/TR 1749:2014) 

MODELS  300 

303 

304 

305 

306 

307 

FLUE OUTLET

 

 

DIAMETER (mm) 

80 

100 

110 

125 

160 

STACK PRESSURE 

(at max. power) 

260 

260 

180 

210 

190 

MAX. EQUIV. 

FLUE LENGTH (m) 

18 

28 

20 

30 

40 

Содержание 303: 304

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 16: ...16 Wiring diagram ...

Страница 17: ...17 Sensor locations ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 22: ...22 Notes ...

Страница 23: ...23 ...

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

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