chaffotteaux Calydra Comfort 100 User guide

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WALL-HUNG COMBINATION BOILER

Central Heating and Instantaneous Domestic Hot Water with TSS

Fanned Flue System

Installation and Operating

Instructions

Calydra comfort 100

G.C.N: 47-980-21

PLEASE LEAVE THESE INSTRUCTIONS WITH THE END-USER

These instructions are suitable for the following boilers :

alydra comfort 100

Do not forget the Log Book!

Chaffoteaux & Maury supports Benchmark, the heating industry code to ensure the correct installation, commissioning and servicing of domestic central heating systems.

o The End User

ake sure you have a completed Log Book for your boiler.

t contains important information about your particular installation that may be required by service engineers. The Log Book will

lso provide contact details for the installer should you need guidance in the use of this appliance or if there are any problems.

a As with your car, your boiler will work more reliably and efficiently if regularly serviced. We recommend an annual service

check. The service history of the appliance will be recorded on the Log Book.

n the unlikely event of any problems with your boiler or system you should first contact your installer. If your installer cannot

esolve the problem he should telephone our national service helpline.

his appliance is a combined appliance for the production of Central Heating (C.H.) and Domestic Hot Water D.H.W.)

T This appliance

improper or negligent use. A charge may be made if Chaffoteaux & Maury Service is called out to resolve a non-product related fault. Your statutory rights are not affected. Do not allow children or inexperienced persons to use the appliance without supervision. If you smell gas in the room,

sparks, open doors and windows to ventilate the room. Shut the gas mains tap (on the gas meter) or the valve of the gas cylinder and call your Gas Supplier immediately. If you are going away for a long period of time, remember to shut the mains gas tap or the gas cylinder valve.

must only be used for the purpose for which it is designed. THe manufacturer declines all responsibility for

do not turn on or off light swithces, use the telephone or any other objects that might cause

his provides a record of the commissioning of your boiler.

Before any intervention within the boiler it is first necessary to isolate the electrical power supply by turning the external switch to “OFF”

TO CONTACT C&M SERVICE, PLEASE CALL THE NATIONAL WARRANTY HELPLINE ON:

0870 600 9888

To The Installer

As part of the commissioning of this appliance it is vital that the Log Book is completed and given to the End User Please ensure that your customer is aware of the importance of keeping the Log Book safe as a record of the installation and the appliance service history.

Please ensure that your customer is aware of the correct operation of the system, boiler and controls.

CUSTOMER CARE

Chaffoteaux & Maury, as a leading brand of domestic and commercial water heating appliances is committed to providing high quality products and a high quality after sales service. If it is necessary to contact an engineer, then telephone the national warranty helpline 0870 600 9888. Advice on installation or servicing can also be obtained by contacting the Technical Department on:

Tel: 0870 241 8180 Fax: 01494 459775

GUARANTEE The manufacturer`s guarantee is for 12 months from the date of purchase. The guarantee is invalidated if the appliance is not installed in accordance with the recommendations made herein or in a manner not approved by the manufacturer. To assist us in providing you with an efficient after sales service, please return the guarantee registration card enclosed with the boiler without delay.

STATUTORY REQUIREMENTS The installation of this appliance must be carried out by a CORGI Registered person or other competent person and in accordance with the requirements of the Gas Safety (Installation and Use) Regulations and the rules in force.

In GB it is necessary to comply with the Water Supply (Water Fittings) Regulation 1999, for Scotland, The Water Bylaws 2000, Scotland. The Centora Green is an approved product under the Water Regulations. To comply with the Water Regulations, your attention is drawn to The Water Regulations guide published by the the Water

Regulations Advisory Scheme (WRAS) gives full details of the requirements. In IE the requirements given under the current edition of I.S.813 must be followed. installation must also comply with the current bylaws of Local Water Undertakings.

Installation should also be carried out in accordance with Building Regulations, Local Authority Building Standards (Scotland) Regulations and current editions of the following British Standards Codes of practice: BS 7593, BS 5440 parts 1 and 2, BS 5449, BS 7593, BS 6798, BS 5546, BS 7074, BS 7671 and document IGE/UP/7.

In the Republic the Republic of Ireland the installation should be carried out in accordance with the following codes of practice: I.S.813 Domestic Gas Installation, the following BS Standards give valuable information: BS 5546, BS 5449, BS 7074 and BS

7593. The electrical connections must be made in accordance for GB with current I.EE. Wiring Regulations, in Scotland with the

electrical provisions of the Building Regulations applicable in Scotland, the Safety Document 635 The Electricity at Work

egulation and in the Republic of Ireland in accordance with I.S.813 and the current ETCI rules.

he Centora Green does not contain any asbestos or asbestos products, or mercury derivatives. Additional CFC’s have not

een used in this product.The appliance does not contain any potential hazard in relation to the COSHH regulations.

f there is a possibility of the incoming mains water pressure exceeding 10 bar then a suitable pressure limiting valve must be

I fitted where pressures exceed 6 bars a pressure limiting valve is preferred.

Precautions: During servicing, keep the dust generation to a minimum and avoid inhaling any dust and contact with the skin and eyes. Normal handling and use will not present any discomfort, although some people with a history of skin complaints may be susceptible to irritation. When disposing of the ceramic lining, ensure that it is securely wrapped and wash hands after contact.

Contents

Page

CUSTOMER CARE............................................. 2

Guarantee............................................................ 2

Statutory Requirements...................................... 2

Contents .............................................................. 3

INTRODUCTION................................................. 3

DESCRIPTION.................................................... 4

Location of components ...................................... 4

TECHNICAL DATA.............................................. 5

DIMENSIONS

OPERATION ....................................................... 7

Domestic Hot Water Mode .................................. 7

Central Heating Mode.......................................... 7

INSTALLATION REQUIREMENTS Location

Flue...................................................................... 8

Ventilation............................................................ 8

Gas Supply.......................................................... 8

Electrical Supply

INSTALLING THE BOILER ................................. 9

Installation ........................................................... 9

Fitting the horizontal flue ..................................... 9

Making the electrical connections........................ 10

SYSTEM GUIDANCE.......................................... 11

...................................................... 6

.....................

...............................................................

.................................................. 8

8 8

Page

Showers............................................................... 11

Flushing and Water Treatment............................ 11

System Controls .................................................. 11

By-pass and pump............................................... 11

Expansion Vessel................................................ 11

Filling Point.......................................................... 11

COMMISSIONING AND TESTING ..................... 12

Pre-commissioning.............................................. 12

Domestic Hot Water ............................................ 12

Central Heating.................................................... 12

Lighting the boiler

Post Commissioning............................................ 12

Handing over to the Householder........................ 12

USER INSTRUCTIONS....................................... 13

Control panel ....................................................... 13

Isolating taps ....................................................... 13

Switching on ........................................................ 13

Hot water ............................................................. 13

Heating ............................................................... 13

Turn off the boiler ................................................ 13

INSTRUCTIONS FOR SETTING THE BUILT-IN

CLOCK ................................................................ 14

GAS CONVERSION............................................ 15

INCORRECT OPERATION................................. 15

................................................

By combining their modern highly efficient low water content fanned flue combination boiler concept and the brand new TSS®“Temperature Stabilised System”, Chaffoteaux & Maury have created a whole new concept.

This unique combination is able to provide the user with hot water immediately at the outlet of the appliance and stable temperatures at both extremely low flow rates or when several taps are opened together.

The TSS®is a 5 litres, independently controlled mini unvented storage cylinder, powered by a 3 kW coil. It works in

Introduction

Calydra comfort

conjunction with the Chaffoteaux & Maury low pressure instantaneous domestic hot water system. The ‘Calydra comfort’, as well as providing hot water, provides central heating. The boiler is designed for sealed systems only.

A one speed circulating pump, diverter valve, expansion vessel as well as a pressure gauge and safety valve are included within the boiler.

The ‘Calydra comfort’ provides the advantages of mains pressure hot water to taps and showers. Supplied directly from the

ain water supply the ‘Calydra comfort’ does not need a separate feed cistern or vent pipe in the loft space.

he ‘Calydra comfort’ has been tested and approved by the WRc as meeting with the requirements of the Water Regulations

uthority.

A The boiler has been tested and approved to carry the CE mark.

The ‘Calydra comfort’ can be installed with the standard horizontal flue, raised horizontal, concentric vertical, twin pipe flue or SEduct arrangements. Adapters, bends and other accessories are available on request.

The boiler is packed in TWO cartons:

. The boiler.

. The flue assembly and fixing kit.

Fig. 1

Fig. 2

Description

Location of components

1 - Air pressure switch 2 - Steel chassis complete with expansion vessel

3 - Flue hood with fan 4 - Main heat exchanger 5 - Combustion chamber 6 - Multi- gas burner assembly including ignition and

ionisation electrodes 7 - Pump 8 - Central Heating flow switch 9 - Automatic air separator and automatic vent

10 - D.H.W. detector 11 - Sealed chamber

Electrical box

12 13 - Overheat safety cut-out 14 - Gas valve assembly 15 - TSS ®(mini cylinder) 16 - Central Heating control thermistor

Three way valve

17 18 - TSS®control thermistor 19 - Domestic Hot Water flow switch 20 - Secondary heat exchanger

D.H.W. pressure relief valve

21 22 - Isolation valves support bracket 23 - On/Off switch

OFF «

ON « 24 - Domestic Hot Water temperature adjustment 25 - Heating flow temperature control knob

Heating temperature indicator lights

26 27 - Green indicator - Power ON 28- Orange indicator - Burner ON 29 - Red indicator - Lock out / flame failure

Reset button

30 31 - Pressure gauge 32 - D.H.W. mode indicator 33 - Central Heating mode indicator

K - Flue kit fixing point (refer to kit manual)

I»

reset

ig.3

Technical Data

Calydra comfort 100 Appliance category

Cat Ii

2H 3+

Gross heat input C.H. & D.H.W.

Maximum in kW

34.6

Maximum in Btu/h 117,900

Heat output C.H. & D.H.W.

Maximum in kW

Maximum in Btu/h 95,600

C.H. operating temperature

Max:

85° C

Min: 35°C

C.H. circuit pressure

Min operating in bar

Max operating in bar 2.5

D.H.W. flow rates

∆

T 30

C in l/min 13.9

in gal/min 3.06

∆

T 35

C in l/min 11.9

in lb/in

0.7 10

36.3

in gal/min 2.62

Cold water mains pressures

Min operating in bar

Max operating in bar 10

in lb/in

0.5

7.25

145

Flow limiter rate in l/min 10 Compartment ventilation not required

Natural Gas G20

Gas rate

Maximum in m

/h 3.29

Maximum in ft3/h 116

Inlet pressure

Nominal in mbar

Nominal in in wg 8

Burner pressure

Nominal in mbar

12.8

Nominal in in wg 5.1

Burner injector diameter

Natural Gas G20 in mm

1.28

Calydra comfort 100

Propane L.P.G. G31

Gas rate

Maximum in kg/h

2.42

Maximum in ft3/h 44.8

Inlet pressure

Nominal in mbar 37 Nominal in in wg 14.8

Burner pressure

Nominal in mbar

30.4

Nominal in in wg 12.2

Butane L.P.G. G30

Gas rate

Maximum in kg/h

2.45

Maximum in Lbs/h 5.40

Inlet pressure

Nominal in mbar 28 Nominal in in wg 11.2

Burner pressure

Nominal in mbar 24 Nominal in in wg 9.6

Burner injector diameter

L.P.G. G30 and G31 in mm 0.76

Safety discharge

in bar in lb/in

43.5

Expansion vessel

Pre-charge pressure in bar 0.7 Pre-charge pressure in lb/in210

Nett capacity at 3 bar in litres 6 Automatic by-pass Electrical characteristics

Supply 230V~

Consumption 150 W

Protection IP4 XD

Fuse n°1 2 A

Fuse n

1.25 A

External controls 24V~

Ø 100

Type C 12

206

143

Ø 125

Ø 80

120

Ø 80

Type C 32 xx

Type C 32 xy

250

Ø 80

250

JKLMN

54 54 54 54

360 2605050

738

850

380

212

uter case dimensions :

Width : 440 (minimum space required 450)

- Height : 850 Depth : 380

Dimensions

ll dimensions in mm

Safety valve

entre line

inimum clearances :

- Both sides 5 mm

- Above casing 170 mm

- Below casing 200 mm

- Front ( for servicing) 500 mm

- Front (in operation) 5 mm

Fig. 4

Weights

With packaging :

- Calydra comfort 100 : 40.5kg

Without packaging :

- Calydra comfort 100 : 38.5kg

Lift weight :

- Calydra comfort 100 : 32.5kg

Type C 32 xxType C12, C42

The boiler is suitable for the 3 flue types:

•

Type C 12 or C 42

• Type C 32 xx

• Type C 32 xy

Type C 32 xy

Tails diameter

Safety valve outlet ø 15 mm

J Central Heating flow ø 22 mm K D.H.W. outlet ø 15 mm L Gas supply ø 22 mm M Cold water inlet ø 15 mm N Central Heating return ø 22 mm

reset

Operation

Fig.5

Domestic Hot Water Mode

In order to supply hot water, the main switch 23 (Fig.5) must be in the ON position indicator light adjustment knob indicator

The hot water temperature in the mini cylinder can be adjusted between 40 and 60 (Fig.5).

When a tap or shower is turned on, the flow of mains water, above 2 l/min, will activate the 3 way valve (Fig.2) to move to the D.H.W. position. The pump will now circulate primary water heated by the main heat exchanger through the secondary heat exchanger.

The first stage solenoid (Fig.6) open together to allow gas to the burner. The ignition sequence begins and a continuous high speed spark ignites the gas. As soon as a flame is detected the orange indicator bulb (Fig.6) opens to allow the full gas rate. If a flame is not detected, after 8 seconds, the security solenoid closes and

shuts off the gas. The red lockout indicator bulb

32 (Fig.5).

28 (Fig.5) will light and the second stage solenoid b

I This will be confirmed by the green

27 (fig. 5). Turn the D.H.W. temperature

24 clockwise to establish the green D.H.W.

°C using the control knob

a (Fig.6) and the safety solenoid c

(Fig.5) will show. Over 2 l/min, the D.H.W. temperature is controlled by the D.H.W. control thermistor heating control thermistor position of the D.H.W. temperature adjustment knob (Fig.5). This system anticipates the changes of temperature in the secondary heat exchanger and ensures accurate temperature regulation.

When the tap is closed the burner is extinguished and the

pump stops. (unless the TSS in which case the burner will remain on at a low rate and the pump will continue running until the mini cylinder thermistor is

satisfied). The boiler will now stay in the hot water mode for 30 seconds to be ready for a subsequent draw off

Priority is given to a demand for hot water. This will interrupt the central heating for the duration of hot water delivery or recovery of the mini cylinder.

When the boiler has been in standby in hot water mode for some time or when drawing D.H.W. at flow rates of less than 2 l/min the temperature in the mini cylinder will eventually decrease and the TSS®control thermistor heat, Causing the pump and burner to operate, until the

TSS®thermistor is satisfied.

d (Fig.6) and the

e (Fig.6), but dependant upon the

thermistor is calling for heat,

f (Fig.6) will call for

Fig. 6

abc

Central Heating Mode

To be able to supply heating, the main switch 23 (Fig.5) must be in the

I position. This will be confirmed by the green indicator light

27 (Fig.5). Turn the temperature control knob 25 clockwise to

establish the green heating indicator When there is a demand for heating (either from the room

thermostat or the clock) and the boiler temperature control is calling for heat. The pump starts allowing the ignition sequence to begin. The first stage solenoid

6) open together to allow gas to the burner. The ignition sequence begins and a continuous high speed spark ignites the gas. As soon as a flame is detected the orange indicator bulb light. After 45 seconds the second stage solenoid to allow the full gas rate. If a flame is not detected, after 8 seconds,

the security solenoid closes and shuts off the gas. The red lockout indicator bulb

The central heating flow temperature is controlled by the central heating control thermistor to minimise cycling and will not attempt to relight for at least 3 minutes after the boiler thermostat has been satisfied (it is possible to reduce the time to 30 seconds if necessary). When the room thermostat is satisfied the burner will switch off and the pump will remain running for a further 4 minutes before it to stops.

NB : It is possible to override the 3 minute delay by pressing the RESET button

29 (fig. 5) will show.

e (Fig 6). The boiler has been designed

30 (Fig 5).

33 (Fig.5).

a (Fig.6) and safety solenoid c (Fig.

28 (Fig 5) will

b (Fig 6) opens

D,E

ocation

Installation Requirements

The boiler can be installed on any suitable internal wall.

rovision must be made to allow the correct routing of the flue

P and siting of the terminal to allow the safe and efficient removal of the flue products. A compartment or cupboard may be used provided that it has been purpose-built or modified for the purpose. It is not necessary to provide permanent ventilation for cooling purposes. Detailed recommendations are given in BS 5440 pt 2. If it is proposed that it is installed in a timber framed building then reference must be made to British Gas Document DM2, or advice sought from CORGI.

Flue

etailed information on the flue assembly is contained in the

D appropriate starter pack. The boiler must be installed so that the flue terminal is exposed to the free passage of external air at all times. It must not be allowed to discharge into another room or space such as an outhouse or closed lean-to. The minimum acceptable clearances are shown below:

- A Directly below an opening, window, etc 300 mm

- B Above an opening, window, etc 300 mm

- C Horizontally to an opening, window, etc 300 mm

- D Below gutters, soils pipes or drain pipes 75 mm

- E Below eaves 200 mm

- F Below balconies or car port roof 200 mm

- G From a vertical drain pipe or soil pipe 150 mm

- H From an internal or external corner 300 mm

- I Above ground roof or balcony level 300 mm

- J From a surface facing the terminal 600 mm

- K From a terminal facing the terminal 1200 mm

- L From an opening in the car port into the dwelling1200 mm

- M Vertically from a terminal on the same wall 1500 mm

- N Horizontally from a terminal on the same wall 300 mm

- Q Fixed by Ubbink Rolux 4 GM flue terminal

Ventilation

The room in which the boiler is installed does not require specific ventilation.

If it is installed in a cupboard or compartment

permanent ventilation is not required for cooling purposes. Gas Supply

he gas installation and soundness testing must be in

T accordance with the requirements of BS 6891.The boiler requires a minimum 22 mm supply. (Ensure that the pipe size is adequate for demand including other gas appliances

n the same supply).

lectrical Supply

The appliance requires an earthed 230V - 50 Hz supply and

ust be in accordance with current I.E.E. regulations. It must

m also be possible to be able to completely isolate the appliance electrically. Connection should be via a 3 amp fused double-pole isolating switch with contact separation of at least 3 mm on both poles. Alternatively, a fused 3 Amp. 3 pin plug and unswitched socket may be used, provided it is not used in a room containing a bath or shower. It should only supply the appliance.

It may be necessary to protect the terminal with a guard. Reference should be made to the Building Regulations for guidance. Suitable guards may be obtained from the following manufacturer:

Quinnel Barret & Quinnel Wireworks Old Kent Road London SE15 1NL Tel: (020) 7639 1357

Fig. 7

Installing the Boiler

Please check that you are familiar with the installation requirements before commencing work.(section 6)

Method of Positioning the Boiler on The Wall.

The paper template can be used to ensure the correct positioning of kitchen cabinets etc. It also details the commissioning instructions.

The paper template has to be fixed to the wall and used to locate the position of the hanging bracket and the centre for the flue hole.

Drill and plug the wall and secure the hanging bracket using the screws provided. Remove the boiler from its packaging as shown in Fig.8 and remove the outer case as shown in Fig.9.

Fig. 8

Fig. 9

Fig. 10

Place the boiler on the wall on the hanging bracket. Using (Fig.4) for reference, connect the gas and water pipes and the valves to the base of the appliance using the tails provided. There is a space of 190 mm between the valves and the wall to make these connections.

Connecting the Boiler to the System

Attention ! Connecting tails are delivered with the boiler. You could ask your local dealer or Chaffoteaux et Maury

Ltd for first installation tails kit or to replace existing boilers such as old Chaffoteaux et Maury models. Before fitting the tails onto the connecting bracket, please check the correct location of the flow restrictor

L (fig.10) on the main inlet.

Safety Valve Drains

The pressure relief valve tube is clear silicone. It should terminate below the boiler over a tundish or 22 mm pipe (see

I Fig 4) which should in turn discharge safely outside the premises. Care should be taken that it does not

terminate over an entrance or window or where a discharge of heated water could endanger occupants or passers by. The system should be carefully checked for leaks, as frequent refilling could cause premature system corrosion or unnecessary scaling of the heat exchanger.

Fitting the Horizontal Flue

The instructions for the vertical and biflux (twin pipe) flue options are included with the relevant adapter kits. The standard flue supplied with the appliance is suitable for lengths from 300 mm minimum to 720 mm maximum. This means

for rear flueing, the standard kit will accommodate a maximum wall thickness of 600 mm, and for side flueing a maximum wall thickness of 587 mm. This takes into account the minimum appliance side clearances of 5 mm.

If the fixing is a rear exit flue, the template provides the position of the centre for drilling the flue hole with a core drill. If the flue is a side exit installation then calculate the position of the hole with a slope of 5 mm / metre away from the boiler to the terminal. The flue should fall slightly to the terminal.

C10C10

C11C11

C38C38

J1J1

J2J2

J5J5

V1MV1

R72R72

R73R73

R75R75

R76R76

HOR

THERMOSTAT

J10

J11

230 V

(P3-P4-P5)

mini maxi

1/3

3/3

1/3

T.A.

Installing the Boiler (contiunued)

Fig. 11

Room thermostat

Connector D

Mains supply cable

Making the Electrical Connections:

Connect the live and neutral wires of the main cable. Note: The connections should be made so that should the lead be pulled from its anchorage, the current carrying wires become taut before the earth wire.

If using a room thermostat or other external control, undo the two retaining screws connected in place of the link on the multipin plug.

B, remove cover C (Fig.12), they can be

Connect the multipin plug into the socket on the power board. Replace the cover.

Fig. 12

Fig. 13

Fig. 14

ADJUSTMENT

Choice of Mode :

- Function without room thermostat, bridge S remains in place.

- Function with room thermostat, remove bridge S, room ther

mostat connected as shown on connector

D (Fig.11).

The external control switches both burner and pump. The external control switches the pump off after a delay of 3 min 30 seconds

Detail

Choice of Boiler Operation :

In order to make these adjustments you will need to access the front of the electrical box.

Isolate the mains electrical supply to boiler. Remove the boiler outer casing.

Remove the rubber cover

E (Fig.12) on the front of electrical

box.

Adjustment on the PCB Central Heating Mode (Fig.13) :

- P3 : potentiometer TAC (Temporisation Anti Cycle) may now

be adjusted between 30 seconds and 3 minutes (see detail) (factory set at 3 minutes).

- JP3 : the spade connector (Fig.14) allows the gas rate to be

reduced to 1/3 performance by positioning the spade across the pins as shown (Fig.14). Full performance across pins as shown (Fig.14).

After completing the adjustments replace the rubber cover and

refit the outer casing.

20 40 60 80 100 120Pf140 160 180 200 220 240

0,7

0,8

0,9

1,0

1,1

1,2

1,3

1,4

1,5

1,6

1,7

1,8

1,9

2,0

80°C

°C

260

Pression à froid pour le circuit chauffage (en bar)

System Guidance

The boiler is suitable for sealed systems only. The

maximum cold water mains pressure for the appliance is 10

ar. All fittings and pipework connected to the appliance

b should be of the same standard. If there is a possibility of

he incoming mains pressure exceeding 10 bar, particularly

t at night, then a suitable pressure limiting valve must be

itted.

he boiler is designed to provide hot water on demand. If

T there is a requirement for greater demands, for example if

he property has several bathrooms and cloakrooms, a

t vented or unvented hot water storage system should be used.

howers

ny shower valves used with the appliance should be of a

A thermostatic or pressure balanced type. Refer to the shower manufacturer for performance guidance and suitability.

Flushing and Water Treatment

The performance of the appliance could be impaired by system debris or the effects of corrosion. The system must be flushed thoroughly to remove metal filings, solder, machining oils and other fluxes and greases before connecting the boiler. If it is an existing system, an appropriate flushing and descaling agent should be used. Refer to BS 7593: 1992 for guidance. For more information on the use of corrosion inhibitors, flushing and descaling agents, advice can be sought from the manufacturers of water treatment products such as:

Betz Dearborn Ltd Foundry Lane Widnes Cheshire WA8 8UD Tel: (0151) 424 5351

Fernox Manufacturing

ritannica Works

B Clavering

ssex

E CB11 4QZ

el: (01799) 550811

System Controls

The boiler is electrically controlled and is suitable for most modern electronic time and temperature controls. The

ddition of such external controls can be beneficial to the

a efficient operation of the system. The boiler connections for

xternal controls are 24V and so only controls of 24V or that

e have voltage free contacts should be used.

By-pass and Pump

The boiler is fitted with an automatic by-pass. .

Expansion Vessel

The expansion vessel is pre-charged to 0.7 bar (10 lb/in2). The vessel is suitable for systems up to 145 litres capacity. For systems of greater capacity an additional expansion vessel will be required. Refer to the chart below and BS 7074 pt 1 or BS 5449.

Filling Point

Provision must be made to be able to charge the system on commissioning and to make up any subsequent pressure loss. The method of connection must utilise approved equipment and must comply with the water regulations. A filling loop can be installed so as to be hidden beneath the boiler.

Pressure

System capacity chart

Fig. 15

Liters

Comissioning and Testing

Pre-commissioning

Ensure that the system has been adequately flushed.

urge gas supply of air and test for soundness.

P Carry out final electrical tests to ensure the correct polarity

nd earthing continuity.

D.H.W.

Open the main cold feed valve.

pen all hot taps to purge the D.H.W. system.

O Check for water soundness. Check flow rate at the bath tap is set correctly (see technical data).

Central Heating

pen flow and return valves on the boiler 34and 38

O (Fig.16)

pen the automatic air vent

O Fill system and vent radiators.

Set system pressure and remove filling loop. Check for leaks. Manually check pump is free to turn. Switch on electrical supply. Turn selector switch Turn the boiler thermostat to maximum. Allow pump to run for several minutes. Isolate electrical supply. Drain boiler and check water filter for installation debris. Replace filter and recharge system.

Lighting the Boiler

Connect gas pressure gauge to test point 14 (Fig.16). Turn on the gas supply and boiler gas tap Ensure electrical supply is on. Ensure all external controls are calling for heat.

Turn selector switch Turn the boiler thermostat to maximum The boiler will light. Allow the boiler to heat system. Check the inlet gas pressure by connecting a gas pressure

23 (Fig.17) to position I.

Fig.16)

9 (

23 (Fig.17) to position I

36 (Fig.16).

25 (Fig 17).

gauge to test point boiler is operating in hot water mode. (Refer to technical data). Check the operation of the boiler controls and safety devices.(see separate servicing leaflet for details)

et the by-pass (Refer to system guidance).

S Re-flush the system to remove any dissolved oils and

luxes.

f Recharge system pressure and introduce any water treatment as required.

ost Commissioning

nsure system pressure has been set correctly.

E Set boiler thermostat and controls. Set programmer to End Users requirements. Set external controls. Ensure the Log Book is fully completed with your contact details and required readings and details of the installation.

Handing Over to the End User

Demonstrate the lighting and operation of the boiler. Demonstrate how to maintain the system pressure. Demonstrate the operation and setting of the built-in clock. Explain the benefits of annual maintenance by a competent person. Explain how to register guarantee. Ensure the End User countersigns the Log Book to confirm that these demonstrations have been carried out and understood.

14 (Fig. 16) (working pressure) while

Detail for the adjustment of the by-pass

Isolating screw on - : by-pass shut

Isolating screw on by-pass open

+ :

Fig.16

reset

User’s Instructions

Control Panel (Fig.17)

23. Two position selector switch = Switched OFF

I = Switched ON

4. = Domestic Hot Water temperature control knob

25. = Central Heating flow temperature control knob

26. Central Heating temperature indicator lights

27. Green indicator - Power ON

8. Orange indicator - Burner ON

29. Red indicator - Lock-out/flame failure

30 “

RESET” Reset button

1. Pressure gauge

32. =- D.H.W. mode indicator

33. =- Central Heating mode indicator

Isolating Valves (Fig 16) Valves shown in open position

34. C.H. flow isolating valve

35. Domestic Hot Water outlet

6. Gas service valve

37. Water service valve

38. C.H. return isolating valve

Fig.17

Switching on

1) Check that the gas service valve is opened at the gas

meter and mains power is on.

2) Check that pressure in Central Heating system is above

0.7 bar and below 1.5 bar with the pressure gauge

3) Open the gas service valve

4) The boiler is now ready to use.

Hot Water

1) Turn mains switch 23 to position I . The green "power on"

indicator Turn the D.H.W. temperature control knob clockwise The D.H.W. indicator will light

2) Turn on a hot water tap, the orange "burner on" indicator

27 will light.

will light

28 and the water will become hot.

36.

32.

31.

24.

Heating

1) Turn mains switch 23 to on position I . The green "power on" indicator will light Turn the C.H. temperature control knob clockwise C.H. indicator will light

3) If the room thermostat (if fitted), the boiler temperature control and the clock (if fitted) are all calling for heat,

the orange "burner on" indicator and the heating will be on. When there is a need for hot water while the heating is on, it is only necessary to turn on a hot tap. The heating will be interrupted momentarily while the hot water is being delivered. The boiler will switch back automatically to heating when the tap is turned off.

Note: If the boiler has been turned off for some time the first attempt to light it may result in a lock-out If this happens press the reset button

To Turn Boiler Off Completely

1) Turn the main switch 23 to the off position O.

2) Turn the gas service valve

33.

27.

25. The

will light

30 and the boiler will light.

36 OFF.

1010

1111

1212

1313

1414

1515

1616

1717

1818

1919

2020

2121

2222

2323

2424

1212

Helpful suggestions

- Periodically check the system pressure using the pressure gauge and make sure that the pressure is between 1.0 and 1.5 ar when the system is off and cool. If the pressure is below the minimum recommended value, the pressure must be

b brought into the acceptable range. Consult your installer for checking and refilling the system.

If the pressure level drops on a frequent basis, it is likely there is a water leak in the system. If this is the case, your installer must inspect the system.

- The outer panel of the boiler’s case must only be cleaned with a damp cloth, do not use abrasive cleaners. The control anel can be wiped with either a damp or dry cloth. Spray polishes must not be used on the control panel surface or

p knobs. Care must be taken in preventing any liquid entering the appliance.

- If the water is exceptionally hard, install a water softerner so that the efficiency of the boiler remains the same over time as

this will consume less gas.

1. General Layout

The mechanical clock covers a 24 hour period. Each tappet represents 15 minutes located on the clock B (Fig 19).

2. To Set the Time

To set the time of day, grasp the outer edge of the dial and turn slowly clockwise until the correct time is lined up with the arrow

3. To Set the "On" and "Off" Times

The clock uses a 24 hour system. (e.g. 8 =8.00 am and 18 = 6.00 pm) "ON" periods are set by sliding all tappets between the "ON" time and the "OFF" time to the outer edge of the dial.The tappets remaining at the centre of the dial are the "OFF" periods.

4. To Select Function Mode

Put the selector switch B to symbol to control the boiler by the clock. Put the switch operation or to «

Instruction for Setting the Built in Clock

A (Fig.19). An override switch is

C (fig. 19).

B to «I» to select permanent

0» to turn heating off permanently.

Fig.18

Fig.19

This appliance is suitable for Natural gas or LPG. A gas conversion must be made by a competent person.

Gas Conversion

Fault

The boiler doesn’t start

Red indicator alight

Noises in CH system

Radiators rise in temperature During summer season

Incorrect Operation

Cause

No gas, no water or no electricity

Air in the gas pipe

Room thermostat switched off

Ignition lockout

Air presence in CH system or. Insufficient pressure

Gravity effect in the CH system

Solution

Check the water pressure in the central heating system and external electrical supply, check that the gas supply is on, should there still be a problem contact

our local service centre.

ontact your local service centre.

Turn up the room thermostat

Wait for a few minutes Press the reset button led will go out and the boiler attempts to re-light.

If the red indicator lights too frequently, please call your local service centre.

Purge of air the system and rise up the system pressure (chapter 8)

Close the heating flow isolating valve. Don’t forget to open it again when you will start heating.

36 (fig.21) the red

Notes

If these solutions do not cure the fault, call a qualified professional

This appliance is suitable for Natural gas or LPG. A gas conversion must be made by a competent person.

Chaffoteaux & Maury are continuously improving their products and therefore reserve the right to change specifications without prior notice and accepts no liability for any errors or omission in the information contained in this document.

Manufacturer: Chaffoteaux & Maury - France

Commercial subsidiary: MTS

MTS Hughenden Avenue High Wycombe Bucks HP13 5FT

Telephone: Fax: (01494) 459775 Internet: www.chaffoteaux.co.uk E-mail:

Technical Support Help Line: 0870 241 8180 Customer Service Help Desk: 0870 600 9888

(GB) Limited

Building

(01494) 755600

info@uk.mtsgroup.com

1309145 - 02/2002

chaffotteaux Calydra Comfort 100 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual