Enviromax FIREBIRD COMBI C20 Manuale utente

INSTALLATION & COMMISSIONING:

Boilers must be installed, commissioned and serviced by qualified and experienced

persons and as set out in the Installation Manual, using correct test equipment.

EXPANSION VESSEL:

Total water content of system and boiler must be calculated to determine if an

additional pressure vessel is required.

HARD WATER - LIMESCALE:

Failure to check water hardness and fit appropriate water softening equipment will

result in scale build up and consequent reduction in water heating performance.

Check with local Water Authority if in doubt.

WARNING:

The manufacturer cannot accept responsibility for any damage to persons, animals

or property due to error in installation or in the burner adjustment or due to

improper or unreasonable use or non observance of the technical instruction

enclosed with the burner, or due to the intervention of unqualified personnel.

GUARANTEE:

• All Firebird oil Boilers have a 2 year comprehensive warranty which extends

to 5 year on the boiler shell.

• The Guarantee card must be fully completed and returned to Firebird

within 28 day’s of complete installation & commissioning.

• Consumable components, the nozzles and the oil hose are excluded.

• The terms laid down on the Guarantee must be adhered to.

( i )

CONTENTS

FOREWORD P. 1

1. INTRODUCTION P. 1

2. STANDARDS & REGULATIONS P. 2

3. OPERATING INSTRUCTIONS P. 3 - 8

4. BOILER TECHNICAL SPECIFICATIONS P. 9 - 16

5. BURNER TECHNICAL SPECIFICATIONS P. 17 - 19

6. WIRING SPECIFICATIONS P. 20 - 22

7. INSTALLATION P. 23 - 29

8. FLUE SYSTEMS P. 30 - 35

9. OIL SUPPLY P. 36 - 37

10. COMMISSIONING P. 38

11. SERVICING P. 39 - 40

12. SAFETY P. 41

13. DOMESTIC HEATING & HOT WATER P. 42 - 48

14. FAULT FINDING BURNER P. 49

15. TROUBLESHOOTING BOILER P. 50

16. SPARE PARTS - BURNER P. 51 - 52

17. SPARE PARTS - KITCHEN C P. 53 - 54

18. SPARE PARTS - SYSTEM C P. 55 - 58

19. SPARE PARTS - COMBI C P. 59 - 64

20. SPARE PARTS - HEAT PAC C P. 65 - 66

21. BAFFLES P. 67

22. ATTENTION P. 68

23. NOTES P. 69

24. SERVICE RECORD P. 70

25. COMMISSIONING RECORD P. 71

GUARANTEE CARD P. 72

( ii )

FOREWORD

We would like to thank you for purchasing a high efficiency Firebird C Range Condensing domestic

central heating oil fired boiler. This instruction manual is produced for the reference and guidance of

qualified installation engineers such as those who are OFTEC registered. EU legislation governs the

manufacture, operation and efficiency of all domestic central heating oil boilers. Our boilers and

burners will are supplied as matched units tested and approved to OFTEC Standard OFS Al00.

FIREBIRD Boilers are full manufacturing members of OFTEC (Oil Firing Technical Association) and

are participating in its Boiler testing and approvals programme to comply with OFS A100 and EC

Efficiency Directive.

Boilers must be installed, commissioned and serviced by qualified and experienced

OFTEC approved personnel (U.K. only). It should be noted that it is the responsibility

of the Installer/Householder to ensure that the boiler is properly commissioned. Failure

to do so may invalidate the boiler guarantee and any extended warranty.

All appropriate OFTEC manuals and BS Standards should be studied and their

requirements adhered to and used in conjunction with these instructions. This manual

includes a list of some BS Standards and Building Regulations.

OFTEC is conducting training and registration of engineers and this is to be commended, as reading

of this manual alone for installation and servicing procedures cannot replace the critical advantage

provided by training and years of experience.

Firebird domestic oil fired condensing boilers are highly efficient and are all independently certified

to Sedbuk Band A. They use less fuel and have lower running costs than non-condensing boilers.

Because of their increased efficiency they emit less carbon dioxide than non-condensing boilers,

which will contribute to efforts to reduce global warming. The incredible efficiency of the Firebird C

Range Condensing Boiler is due to the development of a single boiler unit with three unique heat

exchanger units. This gives a exchange surface greater than non-condensing boilers.

This additional surface area increases the amount of heat extracted from the combustion process and

thus reduces the heat wasted to atmosphere. So much heat is extracted from the combustion gases

that their water vapour element condenses into liquid form, releasing the latent heat that was used

to create the vapour in the first place. It is this heat gain that gives the condensing boiler its

significant advantage over a non-condensing model. In order to enable this high level of heat

extraction to take place, the water in the boiler’s heat exchanger must be cooled down to about

55˚C or less, this means that the boiler is working at its maximum efficiency.

The condensate produced is often mistakenly considered to be highly acidic. In fact the acidity of

condensate from a Firebird C Range Condensing Boiler will be found to be as low, if not lower, than

that of vinegar.

A 20˚C. differential between flow and return should be maintained to achieve maximum

performance from the Firebird C Range Condensing Boiler.

The Firebird C Range Condensing Boiler is suitable for underfloor heating provided the return

temperature is above 40˚C. at all times.

The Firebird C Range Condensing Boiler even when not working in condensing mode will still

operate at extremely high efficiencies making it suitable for fitting to an existing heating system

without alteration to the radiator sizes.

1. INTRODUCTION

2. STANDARDS & REGULATIONS

STANDARDS & REGULATIONS

To ensure the highest standards of installation & safety, it is important that the boiler be

installed in compliance with the following regulations where applicable.

All CURRENT editions of the appropriate Building Regulations:-

Part L & J England & Wales

Part F Section III Scotland - Conservation of Fuel Power

Part L Northern Ireland - Conservation of Fuel Power

Part J Republic of Ireland - Conservation of Fuel Power

BS 5410 Part 1 1997. Code of practice for Oil Firing Installations.

BS 799 Part 5 1987. Specification for Oil Storage Tanks.

BS 4876 1984. Performance requirements for oil burning appliances.

BSEN 12828:2003 (UK National Annex). Heating Systems in Buildings

- Designed for water based heating systems

BS 7074 Part 1 1989. Application, selection and installation of expansion

vessels and ancillary equipment for sealed water systems.

BS 5446 1990. Installation of hot water supplies for domestic purposes.

BS 7593 1992. Code of Practice for treatment of water in heating systems.

BS 715 1989. Metal flue pipes, fittings, terminals and accessories.

BS 1189 1989. Clay flue linings and flue terminals.

BS 4543 part 3 1990. Factory made insulated chimneys for oil fired appliances.

BS 6700. Design, installation, testing and maintenance of Services supplying water.

BS 7671.

Current lEE Regulations. Local Water Undertaking Bylaws.

Water supply (water fittings) Regulations 1999.

The Control of Pollution (Oil) Regulations.

In addition, the work must comply with OFTEC Installation

Requirements for oil fired boilers and oil storage tanks.

The installer should also be aware of his/her responsibilities under The Health and Safety at Work Act. The

interests of safety are best served if the boiler is installed and commissioned by a competent engineer, OFTEC

trained and Registered. If not a Building Notice is required in England & Wales. Other parts of the British Isles

including the Channel Islands also require notification to building Control.

It is the responsibility of installer and everyone concerned with any aspect of installation to ensure that

all applicable standards and regulations are fully adhered to.

OFTEC also publish excellent guides including: Safe Working Practices for Oil Firing Technicians' - OFTEC

Technical Book Three (Installation requirements for Oil Fired Boilers and Oil Storage Tanks) - OFTEC Technical

Book Four (Domestic Heating Systems) and it is recommended that these should adhered to Domestic

Heating Design Guide.

COPIES OF BRITISH STANDARDS MAY BE PURCHASED DIRECT FROM:

BSI (Customer Services),

389 Chiswick High Rd., London W4 4AL. Tel.: 0181-9967002 Fax: 0181-9967001

International and EC Standards are also available from above.

OFTEC PUBLICATIONS ARE AVAILABLE FROM:-

OFTEC, Oil Firing Technical Association,

Foxwood House, Dobbs Lane, Kesgrave, Ipswich. IP5 2QQ

www.oftec.org

☛

BOILER INSTALLATION:

Other than special considerations for condensate removal and plume dispersal, the installation of oil firing

condensing boilers is the same as for non-condensing boilers.

BS 5410 : Part 1 1997 gives the requirements for domestic boiler and oil storage installations.

For condensing boilers the same requirements apply for installation with regard to cleaning and flushing and

providing inhibitors as are followed for any other boiler. Manufacturers instructions must always be followed

together with the requirements of BSEN 12828,2003 & BS EN 12831, 2003, which supersede BS 5449 1990, and

the statutory requirements of the Building Regulations.

3. OPERATING INSTRUCTIONS KITCHEN C / SYSTEM

KITCHEN C MODEL OPERATING PROCEDURE (All models)

TO START THE BOILER FOLLOW THIS SEQUENCE:

■Turn on fuel supply.

■Switch power supply to boiler ‘ON’.

■Turn timer control (If Fitted) to on

■ Set the boiler thermostat to the required temperature (figure B). The boiler thermostat controls the

boiler operation by automatically maintaining the required boiler water temperature output. Safe operation

is also maintained by the burner control system which provides the required ignition and shut off sequence.

If the optional timer control is fitted this will automatically switch the boiler off and on when heat is

required.

THE BOILER CAN BE TURNED OFF BY ANY OF THE FOLLOWING MEANS:

■ Turn the timer control (if fitted) to OFF.

■ Turn OFF the mains electrical supply to the boiler.

WHEN SERVICING ALWAYS SWITCH OFF THE MAINS SUPPLY TO THE BOILER.

High limit stat activated (amber)

Mains ‘on’ (green)

Dual

Thermostat

Burner

Plug

figure A.

figure B.

3. OPERATING INSTRUCTIONS COMBI C

COMBI C BOILER CONTROLS

Visible on the front boiler casing are:

(1) •Central Heating thermostat control.

(2) •Time control - Domestic Hot Water & (3) Central Heating (optional).

(4) •Pressure Gauge.

Also indicator lights.These are:

(5) •High Limit. (Orange) (Reset Button see diagram on page 13)

(6) •Burner lockout. (Red)

(7) •Domestic Hot Water. (Green)

(8) •Central Heating. (Green)

COMBI C OPERATING PROCEDURE

TO START THE BOILER FOLLOW THIS SEQUENCE:

■Turn on fuel supply.

■Switch on power supply to boiler.

■Set the boiler thermostat to the required temperature. ( For Central Heating Max. 80˚C, Min. 60˚C )

■Set timers - Domestic Hot Water & Central Heating.

The central heating thermostat controls the boiler when in central heating mode only, thus

maintaining the required boiler water temperature output for central heating.

Domestic hot water temperature is controlled by separate non adjustable thermostat, plus

thermostatic mixing valve. See page 7.

Safe operation is also maintained by the burner control system which provides the required ignition

and shut off sequence.

If the optional timer controls are fitted these will automatically switch the boiler off and on, as and when

Cental Heating or Domestic Hot Water is required.

THE BOILER CAN BE TURNED OFF BY ANY OF THE FOLLOWING MEANS:

■Turn both timer switches to OFF.

■Turn OFF the mains electrical supply to the boiler.

WHEN SERVICING ALWAYS SWITCH OFF THE MAINS SUPPLY TO THE BOILER

(1)

(6) (5) (3) (2)

(7)

(8)

(4)

Numbers for identification purposes only.

3. OPERATING INSTRUCTIONS

BURNER LOCKOUT

The boiler is factory fitted with a burner control box lockout safety feature which operates

automatically if a fault occurs in the burners operation. Should this occur, the light on the front of the

burner - See above - will illuminate and its cause must be investigated.This could be caused by:

A. An interruption in the fuel supply. (Eg. empty oil supply tank)

B. An electrical supply fault.

C. A fault with the burner or its safety control system.

D. The failure of a component. (Eg. photo cell)

E. Worn or dirty oil nozzle.

Before attempting to restart the boiler the front panel and the burner cover should be removed and a

visual check made for any obvious problems such as oil leaks, loose connections etc.

ENSURE OIL TANK CONTAINS CORRECT GRADE FUEL.

TO RESTART THE BOILER

1. Press reset button (see diagram above)

2. Ensure that the boiler thermostat, time switch (if fitted) and any external

controls connected to the boiler are set to call for heat.

3. Check that the oil supply valves are open and that there is sufficient oil in the tank.

4. Check that the burner lockout light is unlit and with the ‘mains ON’ the

boiler will be ready to commence its start sequence.

HOW TO BLEED AN OIL PUMP

See Page 15 - Burner Specifications. Ref: Priming Pump.

SERVICING

The boiler requires servicing on an annual basis to ensure it maintains its efficiency, continues to

perform reliably and as a regular check on its built-in safety features.

It is important that servicing should be conducted by a competent engineer, preferably one who is

OFTEC trained and registered.

To reset when Lock-out

light shows:

Press glowing reset button

on burner control box.

Reset Button

Inside Burner Box

COMBI C BOILER OPERATION AND CONTROL

Timer Switch

Pos. A

Constant

Timer Switch

Pos. B

Timed

Timer Switch

Pos. C

Off

3. OPERATING INSTRUCTIONS

PROGRAMMING GUIDE

SETTING UP

The outer dial should be set to the current time. Rotate the dial slowly in clockwise

direction, until the correct hour is aligned with the arrow head printed on the dial. Note

that the outer dial is printed with the 24 hour clock -

8:00 a.m. = 8 on the dial. 8:00 p.m. = 20 on the dial.

Do not attempt to rotate the dial in an anti-clockwise direction.

PROGRAMMING SWITCHING TIMES

Set all tappets between the on and off times required, to the outer edge of the dial (see

figure 1). E.g. to set on at 8:00 a.m. - Off at 1:00 p.m. push tappets between dial numbers

8 and 13 to outer edge of dial. Set any other required switching times in a similar

manner.

MANUAL SWITCH

Manual switch operation:The manual switch will provide Fixed On / Fixed Off / Auto control, thereby allowing

manual control of the switched output without disrupting the timed (tappet) settings. Please refer to the

illustration above.

The slide switch can be set in one of the three positions available ‘on’ and ‘off’ are fixed selections - the timer

will remain in the on or off condition until you next use the manual switch to change the setting.‘auto’ is the

normal position for the switch, allowing control to be governed by the tappet settings - in accordance with

‘programming switching times’ above

3. OPERATING INSTRUCTIONS

DOMESTIC HOT WATER OPERATION

Hot water is available on demand by turning on a hot tap. This activates the flow switch which powers

the domestic hot water pump ensuring that all boiler hot water is diverted to the domestic heat

exchanger which heats the incoming mains water to give instant mains pressure hot water.

Hot water is then mixed with mains cold water by a thermostatic mixing valve set to ensure that it does

not exceed 65°C. This is shown in accompanying photograph bellow.

The burner may continue to run after hot water draw off has ceased - to ensure the pre-set temperature

is restored in the heat store. This may also occur at any time if the control system senses that there is a

need to replenish the heat store, i.e. if there has been natural temperature drop in heat store during

long periods of low demand for domestic hot water.

DOMESTIC HOT WATER PRODUCTION

Domestic hot water production cycle commences once the timer has been set and switched on. If

boiler and system are cold allow 20 - 30 minutes for domestic hot water heat store to reach working

temperature. Central heating is controlled by setting the time switch - also located on this panel. The

boiler control system always gives priority to domestic hot water production by automatically

overriding the central heating mode as necessary.The interruption to central heating lasts only as long

as the demand for hot water continues. This has no significant effect on the heating circuit. Once hot

water demand has ceased the boiler will automatically return to central heating mode if there is a

demand.When hot water only is required turn central heating timer switch to ‘off’.

If alternative programmer is used then refer to separate programmer instructions.

BY REQUEST COMBI C BOILERS ARE AVAILABLE WITH BUILT-IN TIMERS.

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