ideal Isar M3050 User guide

GENERAL

Table 1 - Boiler Data

Boiler Size m30-50 m50-80

Gas supply type and connection 2H-G20-20mbar Rc

Injector size Stereomatic 5.4mm dia.

Flow connection 22mm copper

Return connection 22mm copper

Maximum static water head m (ft.) 30.5 (100)

Minimum static water head m (ft.) 0.45 (1.5)

Electrical supply 230 V ~ 50 Hz

Boiler power consumption 38W

Fuse rating External: 3A Internal: F3.15A TL 250V

Water content litre (gal.) 3.65 (0.8)

Dry Weight kg (lb.) 43 (95 )

Boiler size Height mm (in.) 580 (23)

Width mm (in.) 390 (15)

Depth mm (in.) 278 (11)

Flue terminal diameter mm (in.) 100 (4)

Table 2 - Performance Data

1/2 (1/2" BSP Female)

Boiler Size m30-50 m50-80

Input Min Max Min Max

Boiler input 'Q' = Nett kW 9.7 16.2 15.8 26.2

CV Btu/h 33 100 55 300 54 000 89 500

Boiler input 'Q' = Gross kW 10.7 18.0 17.5 29.1

CV Btu/h 36 700 61 400 59 900 99 400 Gas consumption l/s (cu.ft/h) 0.27 (35.4) 0.46 (59.1) 0.45 (57.7) 0.75 (95.7)

Boiler output 'P' = 70 °C Mean water kW 8.8 14.7 14.7 23.4

temperature Btu/h 30 000 50 000 50 000 80 000

Seasonal efficiency (SEDBUK) * Band D [ 78.8 ]% Band D [ 78.6 ]%

Nox classification class 4

* The value is used in the UK Government's Standard Assessment Procedure (SAP) for energy rating of dwellings. The test data from which it has been calculated have been certified by a notified body.

Note.

Gas consumption is calculated using a calorific value of 38.7 MJ/m3 (1038 Btu/ft3) gross or 34.9 MJ/m3 (935 Btu/ft3) nett. To obtain the gas consumption at a different calorific value:-

a. For l/s - divide the gross heat input (kW) by the gross C.V.

of the gas (MJ/m3)

b. For ft

/h - divide the gross heat input (Btu/h) by the gross

C.V. of the gas (Btu/ft3)

Key to symbols GB = United Kingdom IE = Ireland

PMS = Maximum operating pressure of water

C13C33C53 = A room sealed appliance designed for connection

via ducts to a horizontal terminal which admits fresh air to the burner and discharges the products of combustion to the outside through orifices which, in this case, are concentric. The fan is up stream of the combustion chamber.

= An appliance designed for use on 2nd Family gas,

Group H only.

(Countries of destination)

CAUTION.

this appliance, care should be taken when handling edges of sheet steel components.

To avoid the possibility of injury during the installation, servicing or cleaning of

classic m - Installation & Servicing

GENERAL

classic m

Natural Gas only

m3050 ........................ G.C. Appliance No. 41 391 50

m5080 ........................ G.C. Appliance No. 41 391 51

PI No. 0063BL9812

Destination Countries: UK, IE

CONTENTS

Air Supply ...................................................................... 6

Boiler Clearances ......................................................... 4

Boiler Exploded Diagram........................................... 12

Electrical Connections............................................... 19

Electrical Supply ........................................................... 7

Extension Ducts - Fitting ........................................... 17

Fault Finding ............................................................... 37

Flow Wiring Diagram .................................................. 22

Flue Fitting .................................................................. 15

Flue Installation ............................................................ 6

Gas Safety Regulations ............................................... 5

BENCHMARK LOG BOOK DETAILS

Boiler Page

Make and model ........................................................ 3

Appliance Serial No. on Data Badge ...................... 12

Controls ............................................... as applicable

Forall boilers

Flushing to BS.7593 ................................................ 11

Inhibitor .................................................................... 11

Gas inlet working pressure ....................................... 6

Burner operating pressure ........................................ 2

Heat input .......................................... to be calculated

Temperature differential .............measure and record

For combination boilers only ................. Not applicable

For domestic hot water mode ................ Not applicable

For condensing boilers ........................... Not applicable

For all boilers: complete, sign & hand over to customer

For assistance see Technical Helpline number on the back page

Gas Supply .................................................................... 6

Installation ................................................................... 12

Mandatory Requirements ............................................ 5

Pump ............................................................................ 8

Servicing ...................................................................... 25

Short List of Parts ...................................................... 40

Terminal ......................................................................... 6

Thermostatic Radiator valves ..................................... 7

Water and Systems....................................................8-9

Water Connections ..................................................... 19

Water Treatment.......................................................... 11

Wiring Diagrams ......................................................... 20

NOTE TO THE INSTALLER:

LEAVE THESE

INSTRUCTIONS ADJACENT TO THE GAS METER.

ALSO COMPLETE THE BENCHMARK LOG BOOK

AND GIVE THIS TO THE CUSTOMER.

classic m - Installation & Servicing

GENERAL

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Return

Flow

BOILER WATER CONNECTIONS

The boiler flow and return pipes are supplied fitted to the boiler ready for top connection

Notes.

a. For the heating loads in excess of 60, 000 Btu/hr boilers,

28mm (1") flow and return pipes should be used to and from the boiler.

b. This appliance is NOT suitable for use with a direct hot

water cylinder.

BOILER CLEARANCES all dimensions in mm (in.)

The following minimum clearances must be maintained for operation and servicing.

Additional space will be required for installation, depending upon site conditions.

Side and Rear Flue a Provided that the flue hole is cut accurately, e.g. with a core

drill, the flue can be installed from inside the building where wall thicknesses do not exceed 600mm (24"). Where the space into which the boiler is going to be installed is less than the length of flue required the flue must be fitted from the outside.

Installation from inside ONLY b. If a core boring tool is to be used inside

the building the space in which the boiler is to be installed must be at least wide enough to accommodate the tool.

5 (1/4")

165 (6 1/2")

50 (2")

Ecl 1574

400 (15 3/4")

Front clearance

The minimum front clearance when built in to a cupboard is 5mm (1/4") from the cupboard door but 450mm (17 3/4") overall clearance is still required, with the cupboard door open, to allow for servicing.

100 (4")

Jacking screw

Gas

30 mm (1

1/8

390 (15 3/8")

50 (2")

278 (11")

50 (2")

Flue terminal

582 (23")

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111mm

Gas

3/8

* Bottom clearance

Bottom clearance after installation can be reduced to 5mm. However, 100mm must be available for servicing.

classic m - Installation & Servicing

GENERAL

INTRODUCTION

The classic m boiler is a fully automatically controlled, wall

mounted, low water content, fan flued, non condensing gas boiler. It has full modulating central heating outputs of 8.8 kW (30,000 Btu/h) to 14.7 kW (50,000 Btu/h) and 14.7Kw (50 000 Btu/h) to 23.4Kw (80 000 Btu/h)

The boiler casing is of white painted mild steel with user controls capable of being mounted remotely from the boiler, if the option is required.

The heat exchanger is cast iron.

Note. These boilers cannot be used on systems which include gravity circulation.

The boilers are suitable for connection to fully pumped, open vented or sealed water systems. Adequate arrangements for completely draining the system by provision of drain cocks MUST be provided in the installation pipework.

OPERATION

When there is a demand for heat, the heating system is supplied selected temperature of between 65oC and 82oC.

The boiler features a comprehensive diagnostic system which gives detailed information on the boiler status when operating and performance of key components to aid commissioning and fault finding.

BS. 5440:2 Ventilation (for gas appliances of rated input not

exceeding 70 kW).

BS. 5449 Forced circulation hot water systems.

BS. 5546 Installation of gas hot water supplies for domestic

purposes (2nd Family Gases).

BS. 6798 Installation of gas fired hot water boilers of rated

input not exceeding 60 kW.

BS. 6891 Low pressure installation pipes.

Health & Safety Document No. 635

The Electricity at Work Regulations, 1989.

The manufacturer’s notes must NOT be taken, in any way, as overriding statutory obligations.

IMPORTANT. These appliances are CE certificated for safety and performance. It is, therefore, important that no external control devices, e.g. flue dampers, economisers etc., are directly connected to these appliances unless covered by these Installation and Servicing Instructions or as otherwise recommended by Caradon Plumbing Limited in writing. If in doubt please enquire.

Any direct connection of a control device not approved by Caradon Plumbing Ltd. could invalidate the certification and the normal appliance warranty. It could also infringe the Gas Safety Regulations and the above regulations.

OPTIONAL EXTRA KITS

z D Pack Flue Extension Ducts (1000mm long)

z Flue Finishing Kit

Elbow Kit (Maximum 2 per installation)

z 90

Elbow Kit (Maximum 2 per installation)

z 45

z Roof flue Kit

z Powered Vertical Flue Kit

z Remote User Controls Kit

z Boiler Stand-off Kit

SAFETY

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

It is law that all gas appliances are installed and serviced by a CORGI registered installer in accordance with the above regulations. Failure to install appliances correctly could lead to prosecution. It is in your own interest, and that of safety, to ensure the law is complied with.

The installation of the boiler MUST also be in accordance with the latest I.E.E (BS 7671) Wiring Regulations, local building regulations, bye-laws of the local water authority, the building regulations and the Building Standards (Scotland) and any relevant requirements of the local authority.

SAFE HANDLING OF SUBSTANCES

Care should be taken when handling the boiler insulation panels, which can cause irritation to the skin. No asbestos, mercury or CFCs are included in any part of the boiler or its manufacture.

LOCATION OF BOILER

The boiler must be installed on a flat and vertical wall, capable of adequately supporting the weight of the boiler and any ancillary equipment.

The boiler may be fitted on a combustible wall and insulation between the wall and the boiler is not necessary, unless required by the local authority.

For electrical safety reasons there must be no access from the back of the boiler.

The boiler must not be fitted outside.

Detailed recommendations are contained in the following British Standard Codes of Practice:

BS. 5440:1 Flues (for gas appliances of rated input not

exceeding 70 kW).

classic m - Installation & Servicing

Timber Framed Buildings

If the boiler is to be fitted in a timber framed building it should be fitted in accordance with the British Gas publication 'Guide for Gas Installations in Timber Frame Housing', reference IGE/UP/ 7:1998.

GENERAL

Compartment Installations

A compartment used to enclose the boiler should be designed and constructed specially for this purpose. An existing cupboard or compartment may be used, provided that it is modified for the purpose.

In both cases details of essential features of cupboard / compartment design, including airing cupboard installation, are to conform to the following:

z BS. 6798. (No cupboard ventilation is required - see “Air

Supply” for details).

z The position selected for installation MUST allow adequate

space for servicing in front of the boiler.

z For the minimum clearances required for safety and

subsequent service, see the wall mounting template and Frame 2. In addition, sufficient space may be required to allow lifting access to the wall mounting plate.

GAS SUPPLY

The local gas supplier should be consulted, at the installation 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. The boiler must installed on a gas supply with a governed meter only.

A gas meter can only be connected by the local gas supplier or by a registered CORGI engineer.

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 working gas pressure of 20 mbar should be available at the boiler inlet.

IMPORTANT.

Installation pipes MUST be fitted in accordance with BS. 6891. Pipework from the meter to the boiler MUST be of an adequate size, i.e. not less than 15mm O.D.

The complete installation MUST be tested for gas soundness and purged as described in the above code.

Table 3 - Balanced flue terminal position

Terminal Position

1. Directly below or alongside an

opening window, air vent or other 300 mm (12") ventilation opening

2. Below guttering, drain pipes or soil pipes 75 mm ( 3")

3. Below eaves 200 mm ( 8")

4. Below balconies or a car port roof 200 mm ( 8")

5. From vertical drain pipes or soil pipes 75 mm ( 3")

6. From internal or external corners 300mm (12")

7. Above adjacent ground, roof or

balcony level 300 mm (12")

8. From a surface facing the terminal 600 mm (24")

9. From a terminal facing a terminal 1200 mm (48")

10. From an opening in a car port

(e.g. door or window) into dwelling 1200 mm (48")

11. Vertically from a terminal on the same wall 1500 mm (60")

12. Horizontally from a terminal on the wall 300 mm (12")

boiler MUST NOT be closer than 25mm (1") to combustible material. Detailed recommendations on the protection of combustible material are given in BS. 5440: 2000.

Minimum Spacing

IMPORTANT. It is absolutely ESSENTIAL to ensure, in

practice, that products of combustion discharging from the terminal cannot re-enter the building or any other adjacent building through ventilators, windows, doors, other sources of natural air infiltration, or forced ventilation / air conditioning.

If this should occur the appliance MUST be turned OFF, labelled as 'unsafe' until corrective action taken.

TERMINAL

The terminal assembly can be adapted to accommodate various wall thicknesses. Refer to Frame 11 - Unpacking.

FLUE INSTALLATION

The flue must be installed in accordance with the recommendations of BS. 5440: Part 1.

The following notes are intended for general guidance.

1. The boiler MUST be installed so that the terminal is exposed to external air.

2. It is important that the position of the terminal allows the free passage of air across it at all times.

3. Minimum acceptable spacing from the terminal to obstructions and ventilation openings are specified in Table 3.

4. Where the lowest part of the terminal is fitted less than 2m (6'6") above a balcony, above ground or above a flat roof to which people have access, then the terminal MUST be protected by a purpose designed guard.

Ensure that the guard is fitted centrally.

5. Where the terminal is fitted within 850mm (34") of a plastic or painted gutter or 450mm (18") of painted eaves then an aluminium shield at least 750mm (30") long should be fitted centrally to the underside of the gutter or painted surface.

6. The air inlet/products outlet duct and the terminal of the

AIR SUPPLY

It is NOT necessary to have a purpose-provided air vent in the room or internal space in which the boiler is installed. Neither is it necessary to ventilate a cupboard or compartment in which the boiler is installed, due to the low surface temperatures of the boiler casing during operation; therefore the requirements of BS 6798, Clause 12, and BS 5440:2 may be disregarded.

WATER CIRCULATION SYSTEM

For the types of system and correct piping procedure see Frames 1, and 3 to 8.

The central heating system should be in accordance with BS. 6798 and, in addition, for smallbore and microbore systems, BS. 5449.

WATER TREATMENT - see Frame 9

The hot water storage cylinder MUST be of the indirect type and should preferably be manufactured of copper.

Single feed, indirect cylinders are not recommended and MUST NOT be used on sealed systems.

The appliances are NOT suitable for gravity central heating nor are they suitable for the provision of gravity domestic hot water.

classic m - Installation & Servicing

GENERAL

The hot water cylinder and ancillary pipework, not forming part of the useful heating surface, should be lagged to prevent heat loss and any possible freezing - particularly where pipes run through roof spaces and ventilated underfloor spaces.

The boiler must be vented.

The hydraulic resistance of the boilers, at MAXIMUM OUTPUT, with an 11 oC (20 oF) temperature differential, is shown in Graph 1.

Graph 1 - Water flow rate and pressure loss

1.0

0.5

THERMOSTATIC RADIATOR VALVES (TRV)

Caradon Plumbing Ltd. recommend that heating systems

utilising full thermostatic radiator valve control of temperature in individual rooms should also be fitted with a room thermostat controlling the temperature in a space served by radiators not fitted with such a valve as stated in BS. 5449.

For further information refer to the 'Good Practice Guide 143', publication of the Energy Efficiency Office, available from the Building Research Establishment, Garston, Watford WD2 7JR. Tel: 01923 664 258

ELECTRICAL SUPPLY

Wiring external to the appliance MUST be in accordance with the current I.E.E. (BS.7671) Wiring Regulations and any local regulations which apply.

The point of connection to the mains should be readily accessible and adjacent to the boiler.

Pressure Drop Across Boiler

(metres water)

8.8 11.7 14.7 17.6 20.5 23.4 Boiler Output (kW)

Ecl 1603

classic m - Installation & Servicing

GENERAL

OPEN VENT SYSTEM REQUIREMENTS

The system should be vented directly off the boiler flow pipe, as close to the boiler as possible. The cold feed entry should be inverted and MUST be positioned between the pump and the vent, and not more than 150mm (6") away from the vent connection.

Note. Combined feed and vent pipes may also be fitted.

There should be a minimum height, 450mm (18"), of open vent above the cistern water level. If this is not possible refer to Frame 5. The vertical distance between the highest point of the system and the feed/expansion cistern water level MUST not be less than 450 mm (18"). The pump must be fitted on the flow side of the boiler.

A suitable pump is a domestic circulator capable of providing a maximum

C (20oF) temperature differential across the boiler with the whole of the

11 heating circuit open (e.g. Grundfos UPS 15/50, 15/60 or equivalent). With the minimum flow circuit allowed by the controls the differential must not exceed 25 oC.

The vertical distance between the pump and feed/expansion cistern MUST comply with the pump manufacturer's minimum requirements, to avoid cavitation. Should these conditions not apply either lower the pump position or raise the cistern above the minimum requirement specified by Caradon Plumbing Ltd. The isolation valves should be fitted as close to the pump as possible.

Ecl 1604

SCHEMATIC PIPEWORK AND SYSTEM BALANCING

The boiler does not normally need a bypass but at least some radiators on the heating circuit, of load at least 10% of the minimum boiler output, must be provided with twin lockshield valves so that this minimum heating load is always available (see footnote re. thermostatic radiator valves).

Balancing

1. Set the programmer to ON for both

CH and HW. Turn the cylinder thermostat down. Close the manual or thermostatic valves on all radiators, leaving the twin lockshield valves (on the radiators referred to above) in the open position. Turn up the room thermostat and adjust these lockshield valves to give boiler flow and return temperatures not more than 20 apart. These valves should now be left as set.

2. Open all manual or thermostatic radiator valves and adjust the lockshield valves on remaining radiators to give around 11 temperature drop at each radiator.

3. Turn up the cylinder thermostat and adjust the cylinder balancing valve so that the cylinder achieves a maximum flow consistent with adequate flow to the radiators. Check that with only the domestic hot water loop in circuit a differential temperature of 20 across the boiler is not exceeded.

4. Adjust room and cylinder thermostats and programmer to NORMAL settings.

Ecl 1605

Note.

Systems incorporating zone valves which could completely shut off the flow through the system, must be wired such that the boiler will not fire or continue to fire when this occurs.

classic m - Installation & Servicing

GENERAL

LOW HEAD AND LARGE SYSTEMS WITH EXTENSIVE PIPE RUNS - OPEN VENT

This arrangement is useful for large systems where radiators at the extremities are difficult to vent. This can lead to pumping over with conventional feed and vent arrangements.

The following conditions MUST be observed:

1. The top of the automatic air vent must be below the cold water level.

2. The static water level (cold) must be at least 200mm above the top of the horizontal flow pipe, fitted as shown. The vent connection MUST NOT be made immediately off the top of the boiler as venting is made less efficient.

3. The maximum practical length of 22mm cold feed pipe should be used in order to reduce the effective volume of hot system water expanding into the feed/ expansion cistern to a minimum.

Note. The pump manufacturers' minimum requirements must be complied with.

Ecl 1606

All dimensions in mm (in.).

NB. Imperial dimensions are approximate

SEALED SYSTEM REQUIREMENTS

Note. The method of filling, refilling, topping up or flushing

sealed primary hot water circuit from the mains via a temporary hose connection is only allowed if acceptable to the local water authority.

1. General

a. The installation must

comply with the requirements of BS. 6798 and BS. 5449.

b. The installation

should be designed to work with flow temperatures of up to 82° C.

c. All components of the

system, including the heat exchanger of the indirect cylinder, must be suitable for a working pressure of 3 bar (45lb/in ) and temperature of 110°C. Care should be taken in making all connections so that the risk of leakage is minimised.

2. Safety Valve

A spring loaded safety valve complying with the relevant requirements of BS. 6759 must be fitted in the flow pipe as close to the boiler as possible and with no intervening valve or restriction. The valve should have the following features:

a. A non-adjustable preset lift pressure not exceeding

3bar (45lb/in

b. A manual testing device.

c. Provision for connection of a discharge pipe.

3. Pressure Gauge

A pressure gauge covering at least the range 0-4 bar (0-60 lb/in be easily seen from the filling point and should preferably be connected at the same point as the expansion vessel.

The valve or discharge pipe should be positioned so that the discharge of water or steam cannot create a hazard to the occupants of the premises or cause damage to electrical components and wiring.

) must be fitted to the system. The gauge should

classic m - Installation & Servicing

SEALED SYSTEM REQUIREMENTS - continued

4. Expansion Vessel

a. A diaphragm type expansion vessel must be

connected to a point close to the inlet side of the pump, the connecting pipe being not less than 15

1/2" nominal) size and not incorporating valves

mm ( of any sort.

b. The vessel capacity must be adequate to accept the

expansion of the system water when heated to 110° C (230° F).

c. The charge pressure must not be less than the static

water head above the vessel. The pressure attained in the system when heated to 110° C (230° F) should be at least 0.35 bar (5 Ib/in

) less than the lift pressure of the safety valve. For guidance on vessel sizing refer to the table in Frame 8.

For further details refer to BS. 5449, BS. 7074:1 and the British Gas Corporation publication 'Material and Installation Specifications for Domestic Central Heating and Hot Water'.

5. Cylinder

The cylinder must be either of the indirect coil type or a direct cylinder fitted with an immersion calorifier which is suitable for operating on a gauge pressure of 0.35 bar

(5 Ib/in

) in excess of the safety valve setting. Single feed

indirect cylinders are not suitable for sealed systems.

6. Make-up Water

Provision must be made for replacing water loss from the system, either:

a. From a manually filled make-up vessel with a readily

visible water level. The vessel should be mounted at least 150 mm (6") above the highest point of the system, and be connected through a non-return valve to the system, fitted at least 300 mm (12") below the make-up vessel on the return side of the domestic hot water cylinder or radiators.

b. Where access to a make-up vessel would be difficult

by pre-pressurisation of the system. Refer to 'Filling', below.

7. Mains Connection

There must be no direct connection to the mains water supply or to the water storage tank supplying domestic water, even through a non-return valve, without the approval of the local water authority.

8. Filling

The system may be filled by one of the following

methods:

a. Through a cistern, used for no other purposes, via a

ball valve permanently connected directly to a service pipe and/or a cold water distributing pipe. The static head available from the cistern should be adequate to provide the desired initial system design pressure. The cold feed pipe from the cistern should

GENERAL

include a non-return valve and a stop valve with an automatic air vent connected between them, the stop valve being located between the system and the automatic air vent. The stop valve may remain open during normal operation of the system if automatic water make-up is required.

b. Through a self-contained unit comprising a cistern,

pressure booster pump (if required) and, if necessary, an automatic pressure reducing valve and flow restrictor. The cistern should be supplied through a temporary connection from a service pipe or cold water distributing pipe. This unit may remain permanently connected to the heating system to provide limited automatic water make-up. Where the temporary connection is supplied from a service pipe or distributing pipe which also supplies other draw-off points at a lower level then a double check valve shall be installed upstream of the draw-off point.

c. Through a temporary hose connection from a draw-off

tap supplied from a service pipe under mains pressure. Where the mains pressure is excessive a pressure reducing valve shall be used to facilitate filling.

The following fittings shall form a permanent part of the system and shall be fitted in the order stated:

A stop valve complying with the requirements of BS. 1010, Part 2 (the hose from the draw-off tap shall be connected to this fitting). A test cock. A double check valve of an approved type.

• Thoroughly flush out the whole of the system with cold water, without the pump in position.

• With the pump fitted, fill and vent the system until the pressure gauge registers 1.5 bar (21.5lb/in

Examine for leaks.

• Check the operation of the safety valve by manually raising the water pressure until the valve lifts. This should occur within ± 0.3 bar (± 4.3lb/in

) of the pre-

set lift pressure.

• Release water from the system until the initial system design pressure is reached.

• Light the boiler and heat the system to the maximum working temperature. Examine for leaks.

• Turn off the boiler and drain the system while still hot.

• Refill and vent the system.

• Adjust the initial pressure to the required value.

Sizing procedure for expansion vessels: The volume of the expansion vessel (litres) fitted to a sealed system shall not be less than that given by the table on the following page, multiplied by a factor of 0.8 (for flow temperatures of less than 83 °C).

classic m - Installation & Servicing

GENERAL

SEALED SYSTEM REQUIREMENTS - continued

Safety valve setting 3.0 bar 2.5 bar 2.0 bar

Vessel charge and initial 0.5 1.0 1.5 0.5 1.0 1.5 0.5 1.0 system pressure bar bar bar bar bar bar bar bar

Total water content of system Expansion vessel volume litres

25 litres 2.1 2.7 3.9 2.3 3.3 5.9 2.8 5.0

50 4.2 5.4 7.8 4.7 6.7 11.8 5.6 10.0

75 6.3 8.2 11.7 7.0 10.0 17.7 8.4 15.0

100 8.3 10.9 15.6 9.4 13.4 23.7 11.3 20.0

125 10.4 13.6 19.5 11.7 16.7 29.6 14.1 25.0

150 12.5 16.3 23.4 14.1 20.1 35.5 16.9 30.0

175 14.6 19.1 27.3 16.4 23.4 41.4 19.7 35.0

200 16.7 21.8 31.2 18.8 26.8 47.4 22.6 40.0

225 18.7 24.5 35.1 21.1 30.1 53.3 25.4 45.0

250 20.8 27.2 39.0 23.5 33.5 59.2 28.2 50.0

275 22.9 30.0 42.9 25.8 36.8 65.1 31.0 55.0

300 25.0 32.7 46.8 28.2 40.2 71.1 33.9 60.0

Multiplying factors for other system volumes 0.0833 0.109 0.156 0.094 0.134 0.237 0.113 0.20

WATER TREATMENT

The classic m boiler has a cast iron heat exchanger

IMPORTANT.

The application of any other treatment to this product may render the guarantee of Caradon Plumbing invalid.

If water treatment is used Caradon Plumbing Ltd. recommend only the use of FERNOX or SENTINEL water treatment products, which must be used in accordance with the manufacturers' instructions. For further information contact:

Fernox Manufacturing Co. Ltd.

Tandem House

Marlowe Way

Croydon

Surrey CRO 4XS

Tel: 0870 5601 5000

Notes.

1. It is most important that the correct concentration of the

water treatment product is maintained in accordance with the manufacturers' instructions.

2. If the boiler is installed in an existing system any unsuitable additives MUST be removed by thorough cleansing. BS. 7593:1992 details the steps necessary to clean a domestic central heating system.

3. In hard water areas, treatment to prevent lime scale may be necessary - however, the use of artificially softened water is NOT permitted.

4. Under no circumstances should the boiler be fired before the system has been thoroughly flushed.

Sentinel Division

Betz Dearborn Ltd.

Widnes

Cheshire

WA8 8UD

Tel: 0151 424 5351

classic m - Installation & Servicing

BOILER ASSEMBLY - Exploded view

INSTALLATION

LEGEND

1. Front casing panel.

2. Case sealing panel.

4. Bottom cover panel.

5. Flue sensing nipple.

6. Flue baffle (5080 only).

7. Flue hood.

8. Flue connection.

9. Flue hood clip.

10. Flue hood seal.

11. Burner assy.

12. C/Cham Insulation.

13. Heat engine.

14. Injector & housing.

15. Venturi assy.

16. Fan assy.

17. Gas pipe assy.

19. Gas valve assy.

20. Fan bracket assy.

21. Orifice plate.

23. Control thermistor.

24. Overheat thermostat.

25. Igniton electrode.

26. Flame sensing electrode.

35. User control.

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36. PCB - primary controls.

42. Sightglass.

44. Wall mtg. plate.

51. Mains connector.

53. Turret gasket .

classic m - Installation & Servicing

INSTALLATION

UNPACKING

The boiler is supplied fully assembled in one Pack A, together with a standard flue assembly for lengths up to 460mm, rear or side flue outlet, in Pack B.

Optional extras if ordered are supplied in separate boxes.

Unpack and check the contents.

Pack A Contents

Also contained in Pack A:

z Hardware Pack (listed below).

z These Installation & Servicing Instructions.

z The User's Instructions.

z The User's control.

z Benchmark log book.

Hardware Pack

z 50mm x No.10 wood screws -

3 off.

z Wall plugs (TP2B ) - 3 off.

z Turret clamp.

z M5 x 10 pozi Hex screw.

z Mains connector.

INSTALLATION

Pack B Contents

z Flue turret.

z Flue terminal.

z Flue support cutting aid.

PACKAGING REMOVAL

1. Ensure the boiler is stood correctly as marked on the

carton.

2. Remove the strapping.

3. Fold back the top flaps to gain access to the wall

mounting plate, instructions, user controls and hardware pack.

Ecl 1608

Flue turret assembly

Ecl 1460

Flue terminal

4. Remove instructions and read thoroughly before unpacking, user’s controls and hardware pack and retain in safe place.

5. Lift off the cardboard carton.

6. Dispose of packaging.

classic m - Installation & Servicing

Ecl 1576

INSTALLATION

FRONT PANEL AND BOTTOM PANEL REMOVAL

1. Remove the 2 retaining screws.

2. Lift front panel and remove.

3. Remove the 2 bottom panel screws.

4. Allow the RHS of the bottom panel to lower slightly.

5. Withdraw the LHS of the bottom panel from the retaining

clips.

6. Place bottom and front panel to one side to avoid damage.

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INSTALLATION

DETERMINING THE FLUE LENGTH AND FLUE PACKS REQUIRED

IMPORTANT.

The boiler MUST be installed in a vertical position

Dimension X - Wall thickness.

Dimension L - Wall thickness plus

boiler spacing.

Dimension S - Stand-off frame depth = 33mm

FLUE KITS

Pack B - supplied as standard

Pack D - optional extension kit for side flue

or rear flue outlet.

Refer to 'Flue Extension Ducts'

160 + S = 193mm

160mm

Total Flue length dimension Flue

Rear flue Side flue Extra packs

dim. X+160 flue dim. L+195 required

Up to 480 mm Up to 480 mm none

Up to 1430 mm Up to 1430 mm Pack D - 1 off

Up to 2380 mm Up to 2380 mm Pack D - 2 off

Up to 3000 mm Up to 3000 mm Pack D - 3 off

Note.

If the boiler is to be installed with downward routing of pipes then the optional stand-off kit can be used. Care must taken when cutting the ducts and marking the wall to suit this condition.

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classic m - Installation & Servicing

+ 30 hidden pages

ideal Isar M3050 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual