Ariston MicroSYSTEM 21 RFFI Manuel utilisateur

Installation

Instructions

Type C Boilers

G.C.N: 41-116-06

41-116-07

LEAVE THESE INSTRUCTIONS

WITH THE END-USER

Country of destination: GB/IE

TABLE OF CONTENTS 1. GENERAL INFORMATION

1.1 GENERAL INSTRUCTIONS

1.2 OVERALL VIEW

2. INSTALLATION

2.1 DELIVERY

2.2 REFERENCE STANDARDS

2.3 SITING THE APPLIANCE

2.4 OVERALL DIMENSIONS

2.5 CLEARANCES

2.6 MOUNTING THE APPLIANCE

2.7 ELECTRICAL CONNECTION

2.8 GAS CONNECTION

2.9 WATER CONNECTIONS

2.10 FLUE CONNECTION

2.11 ROOM THERMOSTAT CONNECTION

2.12 ELECTRICAL DIAGRAMS

2.13 GAS AND WATER CIRCUITS

3. D.H.W. STORAGE CYLINDER

3.1 2 PORT AND 3 PORT VALVE INSTALLATIONS

3.2 DOMESTIC HOT WATER PRIORITY KIT

4. COMMISSIONING

4.1 INITIAL PREPARATION

4.2 CONTROL PANEL

4.3 REMOVING THE FRONT PANEL

4.4 INITIAL START UP

4.5 OPERATIONAL ADJUSTMENTS

4.6 COMBUSTION ANALYSIS

4.7 FUME DISCHARGE MONITORING

4.8 DRAINING THE SYSTEM

5. GAS ADJUSTMENTS

GAS ADJUSTMENT TABLE

5.1 CHANGING THE TYPE OF GAS

6. MAINTENANCE

7. TECHNICAL INFORMATION

This manual is an integral and essential part of the product. It should be kept

with the appliance so that it can be consulted by the user and our authorised

personnel.

Please carefully read the

instructions and notices about the

unit contained in this manual, as

they provide important information

regarding the safe installation, use

and maintenance of the product.

For operating instructions please

consult the separate User’s Manual.

Read the instructions and recommendations in these Installation Instructions

carefully to ensure proper installation, use and maintenance of the

appliance.

Keep this manual in a safe place. You may need it for your own reference

while our Servicing Centre technicians or your installer may need to consult

it in the future.

This is an appliance for the production of central heating (C.H.).

This appliance must be used only for the purpose for which it is designed.

The manufacturer declines all liability for damage caused by improper or

negligent use.

No asbestos or other hazardous materials have been used in the fabrication

of this product.

Before connecting the appliance, check that the information shown on the

data plate and the table in section 7 comply with the electric, water and gas

mains of the property. You will find the data plate on the reverse of the control

panel.

The gas with which this appliance operates is also shown on the label at the

bottom of the boiler.

Do not install this appliance in a damp environment or close to equipment

which spray water or other liquids.

Do not place objects on the appliance.

Do not allow children or inexperienced persons to use the appliance without

supervision.

If you smell gas in the room, do not turn on light switches, use the

telephone or any other object which might cause sparks.

Open doors and windows immediately to ventilate the room.

Shut the gas mains tap (at or adjacent to 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.

Always disconnect the appliance either by unplugging it from the mains or

turning off the mains switch before cleaning the appliance or carrying out

maintenance.

In the case of faults or failure, switch off the appliance and turn off the gas

tap. Do not tamper with the appliance.

For repairs, call your local Authorised Servicing Centre and request the use

of original spare parts. For in-guarantee repairs contact MTS.

Check the following at least once a year:

1 - Check the seals for the water connections; replace any faulty seals.

2 - Check the gas seals; replace any faulty gas seals.

3 - Visual check of the entire unit.

1. GENERAL

INFORMATION

User’s

Manual

1.1 GENERAL INSTRUCTIONS

4 - Visual check of the combustion process or analysis of combustion by-

products (see section 4.5) and cleaning of the burner if needed.

5 - If called for by point. 3, dismantling and cleaning of the combustion

chamber.

6 - If called for by point. 4, dismantling and cleaning of the burner jets.

7 - Visual check of the primary heat exchanger:

- check for overheating in the blade assembly;

- clean the exhaust fan if needed.

8 - Adjustment of the flow rate of the gas: flow rate for lighting, partial load

and full load.

9 - Check of the heating safety systems:

- safety device for maximum temperature (overheat thermostat);

- safety device for maximum pressure (safety valve).

10- Check of the gas safety systems:

- safety device for lack of gas or flame ionisation (detection

electrode);

- safety device for gas cock.

11- Check of the electrical connection (make sure it complies with the

instructions in the manual).

12- General check of the combustion by-products of the

discharge/ventilation system.

13- Check of the general performance of the unit.

LEGEND:

1. Flue connector

2. Air intake for twin pipe flue systems

3. Fan

4. Combustion chamber hood

5. Main heat exchanger

6. Safety thermostat

7. Combustion chamber

8. Combustion chamber insulation panel

9. Detection electrode

10. Ignition electrodes

11. Burner

12. Regulation thermostat

13. Frost thermostat

14. Pump pressure switch

15. Safety valve (3 bar)

16. Automatic By-pass

17. Gas valve

18. Spark generator

19. Boiler drain valve

20. Circulation pump with automatic air release valve

21. Expansion vessel

22. Air pressure take-off point

23. Air pressure switch

24. Combustion analysis points

1.2 OVERALL VIEW

FIG. 1.0

The technical information and instructions provided herein below are

intended for the installer / Servicing Technician so that the unit may be

installed and serviced correctly and safely.

There will be two items:

1 - The fully assembled boiler

2 - A separately boxed connection ki

WATER REGULATIONS

In GB it is necessary to comply with the Water Supply (Water Fittings)

Regulations 1999, for Scotland, The Water Bylaws 2000, Scotland. The Genus

30 Plus is an approved product under the Water Regulations.

To comply with the Water Regulations, you attention is drawn to The Water

Regulations guide published by the Water Regulations Advisory Scheme

(WRAS) gives full details of the requirements.

In IE, the requirements given in the current edition of I.S.813 and the current

Building Regulations must be followed.

The installation of this appliance must be in accordance with the relevant

requirements of the Local Building Regulations, the current I.E.E. Wiring

Regulations, the bylaws of the local water authority, in Scotland, in

accordance with the Building Standards (Scotland) Regulation and Health

and Safety document No. 635 “Electricity at work regulations 1989” and in

the Republic of Ireland with the current edition of I.S. 813, the Local Building

Regulations (IE).

C.O.S.H.H.

Materials used in the manufacture of this appliance are non-hazardous and

no special precautions are required when servicing.

Installation should also comply with the following British Standard Codes of

Practice:

and in the Republic of Ireland in accordance with the following Codes of

Practice:

2.2 REFERENCE STANDARDS

2.1 DELIVERY

2. INSTALLATION

BS 7593 Treatment of water in domestic hot water central heating

systems

BS 5546 Installation of hot water supplies for domestic purposes

BS 5440-1 Flues

BS 5440-2 Air supply

BS 5449 Forced circulation hot water systems

BS 6798 Installation of gas fired hot water boilers of rated input not

exceeding 60kW

BS 6891 Installation of low pressure gas pipe up to 28mm

BS 7671 IEE wiring regulations

BS 7074 Specification for expansion vessels

BS 5482 Installation of L.P.G.

I.S. 813 Domestic Gas Installations

The following BS Standards give valuable information;

BS 5546 Installation of hot water supplies for domestic purposes

BS 5449 Forced circulation hot water systems

BS 7074 Specification for expansion vessels

BS 7593 Treatment of water in domestic hot water central heating

systems

WARNING!!

The addition of anything that may interfere with the normal operation of the

appliance without express written permission of the manufacturer or his

agent could invalidate the warranty. In GB this could also infringe the GAS

SAFETY(Installation and Use) REGULATIONS.

In the Republic of Ireland the installation and initial start up of the appliance

must be carried out by a Competent Person in accordance with the current

edition of I.S.813 “Domestic Gas Installations”, the current Building

Regulations, reference should also be made to the current ETCI rules for

electrical installation.

The appliance may be installed in any room or indoor area, although

particular attention is drawn to the requirements of the current I.E.E. Wiring

Regulations, in Scotland, the electrical provisions of the Building

Regulations applicable in Scotland, and in the Republic of Ireland, the

current edition of I.S.813, with respect to the installation of the combined

appliance in a room containing a bath or shower. The location of the boiler in

a room containing a bath or shower should only be considered if there is no

alternative.

Where a room-sealed appliance is installed in a room containing a bath

or shower reference should be made to the relevant requirements.

In GB this is the current I.E.E. WIRING REGULATIONS and BUILDING

REGULATIONS. In IE reference should be made to the current edition

of I.S.813 and the current ETCI rules.

If the boiler is to be sited into a timber framed building, reference must be

made to the current edition of the Institution of Gas Engineers Publication

IGE/UP/7 (Gas Installations in Timber Framed Housing).

The location must permit adequate space for servicing and air circulation

around the appliance as indicated in Section 2.5.

The location must permit the provision of an adequate flue and termination.

For unusual locations special procedures may be necessary.

BS 6798-1987 gives detailed guidance on this aspect.

A compartment used to enclose the appliance must be designed specifically

for this purpose. No specific ventilation requirements are needed for the

installation within a cupboard.

This appliance is not suitable for outdoor installation.

The type C appliances (in which the combustion circuit, air vent intake

and combustion chamber are air-tight with respect to the room in

which the appliance is installed) can be installed in any type of room.

Secondary ventilation is not required with this boiler. The boiler must be

installed on a solid, non-combustible, permanent wall to prevent access from

the rear.

2.3 SITING THE APPLIANCE

For safety purposes, have a competent person carefully

check the electrical system in the property, as the

manufacturer will not be held liable for damage caused by

the failure to earth the appliance properly or by anomalies

in the supply of power. Make sure that the residential

electrical system is adequate for the maximum power

absorbed by the unit, which is indicated on the rating plate.

In addition, check that the section of cabling is appropriate

for the power absorbed by the boiler.

The boiler operates with alternating current, as indicated in

the technical information table in section 7, where the

maximum absorbed power is also indicated. Make sure

that the connections for the neutral and live wires

correspond to the indications in the diagram. The

appliance electrical connections are situated on the

reverse of the control panel under the inspection cover

(see the servicing manual for further information)

IMPORTANT!

In the event that the power supply cord must be changed,

replace it with one with the same specifications. Make the

connections to the terminal board located within the

control panel, as follows:

- The yellow-green wire should be connected to the

terminal marked with the “”symbol;

- The blue wire should be connected to the terminal

marked “N”;

- The brown wire should be connected to the terminal

Fasten the boiler in place using the template and anchors

supplied with the unit. It is highly recommended that a

spirit level be used to position the boiler so that it is

perfectly level.

For additional information, please consult the instructions

contained in the connection kit and the flue kit.

2.7 ELECTRICAL CONNECTION

2.6 MOUNTING THE APPLIANCE

132 132

400 mm

300 mm

60 mm

450 mm

LEGEND:

A= Central Heating Flow (3/4”)

C= Gas Inlet (3/4”)

E= Central Heating Return (3/4”)

mm = Clearances

2.4 OVERALL DIMENSIONS

2.5 CLEARANCES

FIG. 2.1

FIG. 2.2

In order to allow for access to the interior of the boiler for

maintenance purposes, the boiler must be installed in

compliance with the minimum clearances indicated in FIG. 2.1

VIEW OF THE BOILER CONNECTIONS

LEGEND:

A= Central Heating Flow

C= Gas Inlet

E= Central Heating Return

F= Safety Valve

G= Pump transportation screw

(remove before igniting the boiler)

H= Automatic By-pass pipe

2.9 WATER CONNECTIONS

2.8 GAS CONNECTION The local gas region contractor connects the gas meter to the service pipe.

The gas installation should be in accordance with the relevant standards. In

GB this is BS6891 and in IE this is the current edition of I.S.813. The

connection the the appliance is a 22mm copper tail located at the rear of the

gas service cock (FIG. 2.3). If the gas supply for the boiler serves other

appliances ensure that an adequate supply is available both to the boiler

and the other appliances when they are in use at the same time. Pipe work

must be of an adequate size. Pipes of a smaller size than the boiler inlet

connection should not be used.

marked “L”.

Note: The diagrams for the electrical system are indicated in section 2.12.

Warning, this appliance must be earthed.

External wiring must be correctly earthed, polarised and in accordance with

relevant regulations / rules. In GB this is the current I.E.E. WIRING

REGULATIONS. In IE reference should be made to the current edition of the

ETCI rules. This boiler is supplied for connection to a 220 - 240 V~ 50 Hz

supply.

The supply must be fused at 3 A.

The method of connection to the electricity supply must facilitate complete

electrical isolation of the appliance, by the use of a fused double pole

isolator having a contact separation of at least 3 mm in all poles or

alternatively, by means of a 3 A fused three pin plug and unswitched

shuttered socket outlet both complying with BS 1363.

The point of connection to the Electricity supply must be readily accessible

and adjacent to the appliance unless the appliance is installed in a bathroom

when this must be sited outside the bathroom (see section 2.3).

FIG.2.3

FIG. 2.4

SC004A

CENTRAL HEATING

Detailed recommendations are given in BS 6798:1987 and BS 5449-1:1990,

the following notes are given for general guidance.

PIPE WORK

Copper tubing to BS EN 1057:1996 is recommended for water pipes.

Jointing should be either with capillary soldered or compression fittings.

Where possible pipes should have a gradient to ensure air is carried

naturally to air release points and water flows naturally to drain taps.

The appliance has a built-in automatic air release valve, however it

should be ensured as far as possible that the appliance heat exchanger

is not a natural collecting point for air.

Except where providing useful heat, pipes should be insulated to prevent

heat loss and avoid freezing.

Particular attention should be paid to pipes passing through ventilated

spaces in roofs and under floors.

BY-PASS

The appliance includes an automatic by-pass valve, which protects the

main heat exchanger in case of reduced or interrupted water circulation

through the heating system, due to the closing of thermostatic valves or

cock-type valves within the system.

SYSTEM DESIGN

This boiler is suitable only for sealed systems.

DRAIN COCKS

These must be located in accessible positions to permit the draining of

the whole system. The taps must be at least 15mm nominal size an

manufactured in accordance with BS 2870:1980.

SAFETY VALVE DISCHARGE (PRIMARYWATER)

The discharge should terminate facing downwards on the exterior of the

building in a position where discharging (possibly boiling water & steam)

will not create danger or nuisance, but in an easily visible position, and

not cause damage to electrical components and wiring.

The discharge must not be over an entrance or a window or any other

type of public access.

MAINS WATER FEED - CENTRAL HEATING

There must be no direct connection to the mains water supply even

through a non-return valve, without the approval of the Local Water

Authority, and must be in accordance with water supply regulations. Your

attention is drawn to, for GB: Guidance G24.2 and recommendation

R24.2 of the water regulations guide and for IE: the current edition of

I.S.813.

FILLING

A temporary method for initially filling the system and replacing lost water

during servicing and initial filling (complying to current water regulations

and byelaws) is provided. The flexible hose must be removed once the

system has been filled.

RESIDUAL HEAD OF THE BOILER

Ø 60/100 mm

FIG.2.6

The boiler is designed to be connected to a coaxial flue discharge system.

2.10 FLUE CONNECTIONS FLUE SYSTEM

The provision for satisfactory flue termination must be made as described in

BS 5440-1, for IE recommendations I.S.813.

The appliance must be installed so that the flue terminal is exposed to

outdoor air, consideration must be given to terminal discharges onto a

pathway or passageway, check that the combustion discharges will not

cause a nuisance and that the terminal will not obstruct the passageway.

The terminal must not discharge into another room or space such as an

outhouse or lean-to.

It is important that the position of the terminal allows a free passage of air

across it at all times.

If the terminal is fitted within 1 metre of a plastic gutter, within 500mm of a

painted eave or a painted gutter, an aluminium shield of at least 1 metre

long should be fitted to the underside of the gutter or painted surface. An air

space of 5mm should be left between shield and gutter.

The terminal should be located with due regard for the damage or

discolouration that might occur on buildings in the vicinity.

In cold or humid weather water vapour may condense on leaving the flue

terminal. The effect of such “steaming” must be considered.

If the terminal is less than 2 metres above a balcony, above ground or above

a flat roof to which people have access, then a suitable terminal guard must

be fitted. When ordering a terminal guard, quote the appliance model

number.

A suitable terminal guard is available from:

TOWER FLUE COMPONENTS

Morley Road

Tonbridge

Kent TN9 1RA

The minimum acceptable spacing from the terminal to obstructions and

ventilation openings are specified in FIG. 2.5.

ERMINAL

OSITION

A - Directly above or below an openable window

or other opening 300

B - Below gutters, solid pipes or drain pipes 75

C - Below eaves 200

D - Below balconies or car-port roof 200

E - From vertical drain pipes and soil pipes 150

F - From internal or external corners 300

G - Above ground or balcony level 300

H - From a surface facing a terminal 600

I - From a terminal facing a terminal 1200

J - From an opening in the car port

(e.g. door, window) into dwelling 1200

K - Vertically from a terminal in the same wall 1500

L - Horizontally from a terminal in the same wall 300

M - Horizontally from an opening window 300

N - Fixed by vertical flue terminal

FIG. 2.5

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