Biasi Riva Advance M110B.24SR/C User manual

Brand: Biasi

Model: Riva Advance M110B.24SR/C

Category: Water heaters & boilers

Type: User manual

This manual is also suitable for

RIVA ADVANCE HE M110B.24SR/C

Wall hung, fanflue, roomsealed, high efficiency gas boiler

User manual and

Installation instructions

RIVA ADVANCE HE

Models G.C. Appl. No.

M110B.24SR/C 41---583---07

- 2 -

WARNING

Congratulations on your choice.

RIVA ADVANCE HE are condensing high efciency sealed chamber fan ue gas boilers.

They are fully electronically controlled and have electronic ignition.

The materials they are made of and the control systems they are equipped with give you

safety, a high level of comfort and energy savings to allow you to get the greatest benet out

of independent heating.

RIVA ADVANCE HE allow a higher efciency by reducing the ue gas temperature such that

the water vapour formed during the combustion is condensed out.

This allows a gain of useful heat that otherwise would be lost.

Biasi UK Ltd is a licensed member of the Benchmark Scheme which aims to improve the

standards of installation and commissioning of domestic heating and hot water systems in

the UK and to encourage regular servicing to optimise safety, efciency and performance.

Benchmark is managed and promoted by the Heating and Hot water Industry Council. For

more information visit www.centralheating.co.uk.

DANGER: The indications marked with this symbol must be observed to pre-

vent accidents of mechanical or generic origin (e.g.: Injuries or bruises).

DANGER: The indications marked with this symbol must be observed to pre-

vent accidents of electric origin (electrocution).

DANGER: The indications marked with this symbol must be observed to pre-

vent the risk of re or explosion.

DANGER: The indications marked with this symbol must be observed to pre-

vent accidents of heat origin (burns).

ATTENTION: The indications marked with this symbol must be observed to

prevent malfunctioning and/or damage to materials of the appliance or other

objects.

ATTENTION: The indications marked with this symbol is important informa-

tion that must be carefully read.

- 3 -

WARNING

Remember that...

The manual must be read thoroughly, so that you will be able to use the boiler in a safe

and sensible way; must be carefully kept. It may be necessary for reference in the future.

The lighting up must be carried out by competent and responsible engineer.

The manufacturer

• disclaim all liability for any translations of the present manual from which incorrect inter-

pretation may occur;

• cannot be held responsible for non-observance of instructions contained in this manual

or for the consequences of any procedure not specically described.

Please ensure that the installer has fully completed the Benchmark Checklist on the inside

back pages of the installation instructions supplied with the product and that you have signed

it to say that you have received a full and clear explanation of its operation. The installer is

legally required to complete a commissioning checklist as a means of complying with the

appropriate Building Regulations (England and Wales).

All installations must be notied to Local Area Building Control either directly or through a

Competent Persons Scheme. A Building Regulations Compliance Certicate will then be

issued to the customer who should, on receipt, write the Notication Number on the Bench-

mark Checklist.

This product should be serviced regularly to optimise its safety, efciency and performance.

The service engineer should complete the relevant Service Record on the Benchmark

Checklist after each service.

The Benchmark Checklist will be required in the event of any warranty.

Using the boiler...

Before lighting the boiler you are advised to have a Gas Safety Registered Engineer

check that the installation of the gas supply

• is gas-tight;

• is of the correct gauge for the ow to the boiler;

• is tted with all the safety and control devices required by the current Regulations.

Ensure that

• Check with the Installer that he has connected and terminated the pressure relief valve

in a manner which allows safe discharge. The manufacturers are not responsible for

damage caused by opening of the pressure relief valve and consequent escape of wa-

ter, if this is not connected and terminated.

• The installer has connected the condensate outlet to a suitable drain pipe.

- 4 -

WARNING

On detecting the smell of gas:

• don’t operate any electrical switches, the telephone or any device that may produce

sparks;

• open the windows and doors at once to create a draught of air which will purge the area;

• shut off the gas cocks;

• get the assistance of a qualied person. Emergency telephone number

Tel. 0800 111999.

Do not touch the appliance with parts of the body that are wet or damp and/or bare feet.

Do not block or modify the condensate outlet and pipe work.

In case of structural work or maintenance near the exhaust duct and/or fume exhaust

devices or their attachments, turn off the appliance. On completion of the work, have a

professionally qualied person check their efciency.

Repairs (under guarantee) must be carried out only by a Biasi an approved engineer, us-

ing genuine spare parts. Thus do no more than switching off the boiler yourself (see the

instructions).

Your boiler allows heating up of water to a temperature less than boiling point;

• must be connected to a central heating system and/or a hot water supply system, com-

patible with its performance and output;

• can be used only for those purposes for which it has been specially designed;

• must not be touched by children or by those unfamiliar with its operation;

• must not be exposed to weather conditions.

During the operation it is quite normal that the boiler produces a white plume of conden-

sation vapour from the ue terminal. This is due to the high efciency of the appliance and

may be particularly evident with low outdoor temperatures.

Safe handling of substances

Biasi products are manufactured in accordance with ISO 9001 and do not, and will not,

contain any hazardous materials or substances such as asbestos, mercury or C.F.C.’s. The

appliance packaging does not contain any substances, which may be considered a hazard

to health.

When handling or lifting always use safe techniques.

• Keep your back straight, bend your knees, don't twist.

• Move your feet, avoid bending forwards and side way sand keep the load as close to your

body as possible.

Where possible transport the boiler using a sack truck or other suitable trolly.

Always grip the boiler rmly, and before lifting feel where the weight is concentrated to estab-

lish the centre of gravity, repositioning yourself as necessary.

- 5 -

WARNING

Combustion chamber panels

Material: mineral bres

Known hazards - Some people can suffer reddening and itching of the skin. Fibre entry into

the eye will cause foreign body irritation, which can cause severe irritation to people wearing

contact lenses. Irritation to respiratory tract.

Precautions - Dust goggles will protect eyes. People with a history of skin complaints may

be particularly susceptible to irritation. High dust levels are only likely to arise following harsh

abrasion. In general, normal handling and use will not present high risk, follow good hygiene

practices, wash hands before, touching eyes, consuming food, drinking or using the toilet.

First aid - Medical attention must be sought following eye contact or prolonged reddening of

the skin.

Thermostat / Temperature gauge

Description - Sealed phial and capillary containing liquid.

Known hazards - irritating to skin, eyes and throat. Vapour is harmful. Inammable -do not

extinguish with water.

Precautions - Do not incinerate. Avoid contact with broken/leaking phials. Do not purposely

puncture.

First aid - medical attention must be sought following eyes/skin contact, wash with clean

water.

Sharp Edges

Caution should be taken when handling the boiler to avoid sharp edges on the boiler.

Boiler installation and commissioning tips

The installation must be carried out by a qualied Gas Safety Registered Engineer who

will be responsible for observing the current Regulations and the completion of the

Benchmark Gas Boiler System Commissioning Checklist, located at the back of this User

manual.

- 6 -

WARNING

Installing the boiler...

Do not forget to remove the transit caps and plugs from the boiler connections these are

tted to every boiler.

Keep the boiler clear of dust during installation and in particular do not allow any dust or

debris to enter the top of the boiler where the ue connection is made. It is recommended

that you put a dust sheet over the top of the boiler until you are ready to make the ue

connection.

Because every boiler is red and tested live at the factory, a small amount of water re-

mains within the boiler. It is possible for this water to initially cause the pump to seize. It is

therefore recommended that the pump rotor be manually turned to free its rotation before

turning the boiler on.

Remember to release the auto air purge before lling the boiler. See the instructions to

identify the location of this device.

This boiler allows to control the ow temperature of the central heating system at very

low levels. In case of underoor heating system a temperature limiting device (e.g. a

safety thermostat) is recommended to stop the boiler in case that the water temperature

exceeds the design temperature.

You are strongly advised to the British Standard BS 7593-2006 Code of practice, ush out

the system both cold and hot in order to remove system and installation debris.

It is also sensible to initially re and commission the boiler before connecting any external

controls such as a room thermostat. By following this procedure if you have a subsequent

problem this method if you have a subsequent problem following the addition of an exter-

nal control you can eliminate the boiler from your fault analysis.

If the boiler is tted with a digital programmer, when setting the times for automatic opera-

tion, remember that for every “ON” time there must be an “OFF” time to follow and that

on every occasion you enter a time you must also indicate which days that you want the

boiler to follow the timed settings.

Some products incorporate an anti cycling time delay. It is normal when rst switching the

boiler on for the boiler to operate on heating for a few seconds then switch off. After 3 - 4

minutes has elapsed the boiler will then re ignite and operate perfectly normally. The igni-

tion delay cycle does not prevent normal operation of the boiler to provide d.h.w.

If you are in any doubts as to the installation or operation of the boiler please read the

instruction manuals thoroughly and then if necessary contact Biasi UK for advice and as-

sistance.

Guarantee conditions. The guarantee registration form must be returned within 30 of

purchase, failure to comply will invalidate the guarantee.

Please remember that if you are in any doubt about the installation of this product you can

contact our Technical Help line on tel. 01922 714 600.

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TABLE OF CONTENTS

APPLIANCE DESCRIPTION .............8

1.1 Overview............................... 8

1.2 Control panel ........................... 8

1.3 Isolation valves .......................... 8

1.4 Technical data........................... 8

1.5 Operation lights ......................... 9

2 INSTRUCTIONS FOR USE . . . . . . . . . . . . 10

2.1 Warnings.............................. 10

2.2 Relling procedure ...................... 10

2.3 Ignition ................................11

2.4 C.h. circuit temperature ...................11

2.5 Extinguishing .......................... 12

3 USEFUL ADVICE.................... 13

3.1 Central Heating......................... 13

3.2 Frost protection......................... 13

3.3 Condensate drain ....................... 13

3.4 Periodic maintenance .................... 13

3.5 External cleaning ....................... 13

3.6 Operational faults ....................... 14

4 TECHNICAL INFORMATION........... 15

4.1 Overview.............................. 15

4.2 Main diagram .......................... 16

4.3 Technical data mod. M110B.24SM/... ........ 18

4.4 Hydraulic specications .................. 20

4.5 Expansion vessel ....................... 20

5 GENERAL REQUIREMENTS .......... 21

5.1 Related documents...................... 21

5.2 Location of appliance .................... 21

5.3 Flue system ........................... 22

5.4 Gas supply ............................ 23

5.5 Air supply ............................. 23

5.6 Ventilation ............................. 23

5.7 Condensate drain ....................... 23

5.8 Water circulation (c.h.) ................... 24

5.9 Water treatment ........................ 25

5.10 Electrical supply ........................ 25

6 INSTALLATION ..................... 27

6.1 Warnings.............................. 27

6.2 Precautions for installation ................ 27

6.3 Installing the bracket..................... 28

6.4 Overall dimensions ...................... 28

6.5 Joints ................................ 29

6.6 Mounting the boiler ...................... 29

6.7 Fitting the ue system.................... 29

6.8 Choice of ue .......................... 30

6.9 Electrical connections.................... 32

6.10 External frost protection .................. 34

6.11 Connecting a system boiler to a cylinder ..... 34

7 COMMISSIONING . . . . . . . . . . . . . . . . . . . 37

7.1 Warnings.............................. 37

7.2 Electrical installation ..................... 37

7.3 Gas supply installation ................... 37

7.4 Initial lling of the system ................. 37

7.5 Condensate pipe and traps ............... 38

7.6 Lighting the boiler ....................... 39

7.7 Checking the gas supply pressure .......... 39

7.8 Maximum output in c.h. mode ............. 41

7.9 External temperature probe setting (optional) . 41

7.10 Checking the ignition device............... 42

7.11 Checking the ue system ................. 42

7.12 Checking the condensate drain pipe ........ 43

7.13 Instructing the user ...................... 43

8 GAS CONVERSION ................. 44

8.1 Warnings.............................. 44

8.2 Procedures ............................ 44

9 MAINTENANCE..................... 47

9.1 Warnings.............................. 47

9.2 Dismantling the external panels ............ 47

9.3 Emptying the c.h. system ................. 47

9.4 Combustion analysis check ............... 48

9.5 Cleaning the condensing heat exchanger and

burner ................................ 48

9.6 Checking the pressurisation in the expansion

vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

9.7 Cleaning the burner ..................... 49

9.8 Checking the ue ....................... 49

9.9 Drain pipe inspection .................... 49

9.10 Visual inspection of appliance ............. 49

9.11 Gas pressures and soundness............. 49

9.12 Water inhibitor concentration .............. 49

GAS BOILER SYSTEM COMMISSIONING

CHECKLIST........................ 50

SERVICE RECORD .................. 51

Abbreviations used in the manual:

C.h. = Central heating

D.h.w. = Domestic hot water

D.c.w. = Domestic cold wate

Appliance category: II2H3P (Gas G20 20 mbar, G31 37 mbar)

Country of destination: United Kingdom (GB) Ireland (IE)

This appliance conforms with the following EEC directive:

Gas Directive 2009/142/CE

Boiler Efciency Directive 92/42/CEE

Electromagnetic Compatibility Directive 2004/108/CE

Low Voltage Directive 2006/95/CE

The manufacturer, in the continuous process to improve his products, reserves the right to modify the data expressed in

the present documentation at any time and without prior notice.

The present documentation is an informative support and it can not be considered as a contract to-wards third parties.

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USE

APPLIANCE DESCRIPTION

1 APPLIANCE DESCRIPTION

1.1 Overview

The model and serial number of the boiler

are printed on bottom right side.

Fig. 1.1

1 Case front panel

2 Control panel

3 Control panel cover

1.2 Control panel

4 C.h. circuit temperature and pressure

gauge

5 Lock-out signal lamp

6 Lockout reset button

7 Function selector and c.h. temp. control

knob

8 D.h.w. temperature control knob

9 Appliance operation lights

1.3 Isolation valves

Provide for the installation

of a stop valve on the D.c.w.

inlet pipe.

Fig. 1.2

10 C.h. return pipe

11 Gas inlet valve

12 Condensate drain pipe

13 C.h. ow pipe

1.4 Technical data

For detailed technical data see

sections

"Technical Data" on page 18

9 8 7 6 5 4

Fig. 1.3

- 9 -

USE

APPLIANCE DESCRIPTION

1.5 Operation lights

Three lights (9 in Fig. 1.3) give detailed indi-

cation regarding the operation of the boiler.

The following table gives the relationship

between each of the possible light combina-

tions and their meaning.

A short pulse every 4 sec-

onds: stand-by condition.

Function selector in

position.

Anti-freeze system active

1 second pulse every 2

seconds: normally oper-

ating boiler. Function se-

lector in

position

C.h. operation

Frost protect operation

D.h.w. operation

Excessive temperature

on primary circuit

If the lights combination observed is not

included in the above table a fault may be

indicated.

Reference should be made to the following

table.

In this case switch off the boiler, as de-

scribed in section "Extinguishing" to page

12 and call a competent and responsible

Service Engineer.

Faulty c.h. temperature

probe NTC

Faulty primary circuit (no

water or absence of ow)

Lack of burner ignition

Safety thermostat lock

out

Faulty fan control system

Flue temperature probe

NTC lock out

Open ue temperature

probe NTC

Faulty external temp.

probe (if tted)

Flame detection error

Other faults

Lack of power supply or

fauly electr. control p.c.b.

Meaning of symbols:

Lamp OFF

Lamp ON

Flashing lamp, alone or simultane-

ously with an other lamp

Flashing lamp, alternate with another

lamp

- 10 -

USE

INSTRUCTIONS FOR USE

2 INSTRUCTIONS FOR USE

2.1 Warnings

Biasi UK Ltd support the Benchmark initia-

tive. The Benchmark Checklist is located

at the back of this manual and should be

completed by the Installing/Commission-

ing Engineer and handed over to the User

for future reference by other visiting Engi-

neers. Also included is the Service Interval

Record card that should be completed by

the Service Engineer following the annual

service maintenance of the boiler and sys-

tem.

All Gas Safe Registered Installers carry a

Gas Safe ID card, and have a registration

number. Both should be recorded in your

Benchmark Checklist. You can check your

Installer is registered by calling Gas Safe

direct on 0800 408 5500, or go on line at

www.GasSafeRegister.co.uk.

In order to guarantee safety and correct op-

eration, it is essential that all the tests are

carried out by a competent and responsible

service engineer before lighting up the boiler.

The tests are described in the installation in-

structions in section 7 commissioning.

Ensure that the c.h. circuit is regularly lled

with water (even if the boiler is only used for

d.h.w. supply) checking that the pressure indi-

cated on pressure gauge 4 is not lower than

that shown in Fig. 2.2.

If the pressure reading on the pressure gauge

is below that shown in Fig. 2.2, then the sys-

tem will require topping up. A lling loop is

normally provided by the Installer for this pur-

pose.

If you are in any doubt regarding this pro-

cedure you are advised to contact your In-

staller or an Approved Engineer.

This appliance is provided with a built in anti-

freeze system that operates the boiler when

the temperature is below 5 °C.

Therefore, when the boiler is not lit or used

in cold weather, with consequent risk of freez-

ing do not switch off the boiler at the fused

spur isolation switch or close the gas inlet

cock.

When you do not expect to use the boiler for

a long period and the boiler is not to be used

for frost protection then follow the instructions

given in section "Extinguishing" to page 12.

2.2 Relling procedure

• Isolate the boiler from the electrical supply

at the fused spur. Reconnect the lling loop

as demonstrated in Fig. 2.1.

Fig. 2.1

Control

valve

Double

check valve

Temporary

connection

Supply pipe

(cold water

inlet)

Control valve

C.h. return pipe

• Open the valves of the lling loop and watch

the gauge until it reaches normal lling pres-

sure as shown in Fig. 2.2.

Fig. 2.2

Normal

lling

pressure

• Close the valves and remove the lling loop.

If you experience any difculty with the op-

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USE

INSTRUCTIONS FOR USE

eration of the boiler, switch off the boiler

immediately at the fused spur isolation

switch and contact your Installer or an ap-

proved Service Engineer.

Air introduced into the boiler during this lling

process will vent through the automatic air

purger tted to the boiler. You may also nd

it necessary to vent air from your radiator cir-

cuit using your radiator key, however be aware

that excessive venting will cause the pressure

in the system to drop.

Always ensure that the pressure gauge is set

at the required pressure.

2.3 Ignition

• Check that the valves located in the lower

part of the boiler are open Fig. 2.3.

Fig. 2.3

Open

position

• Turn on the electricity supply to the boiler

switching on the fused spur isolation switch.

The appliance operation light 9 (Fig. 2.4) will

ash every 4 seconds (stand-by condition).

• To operate the boiler, position the function

selector 7 as in Fig. 2.4. The appliance op-

eration light 9 will ash every 2 seconds (op-

erating boiler).

Fig. 2.4

2.4 C.h. circuit temperature

The output temperature of c.h. water is ad-

justable from a minimum of about 25°C to a

maximum of about 85°C (Fig. 2.5), by turning

the knob 7.

Adjustment of the boiler temperature alters

the gas ow at the burner according to the

thermal demand in the system. So it is usual

to see the burner lit at the minimum level for

more or less long periods.

The following instructions indicate how to set

the output temperature of the c.h. water de-

pending on the outside temperature.

Fig. 2.5

Minimum

Maximum

Adjustment of temperature WITHOUT the

external temperature probe (optional) t-

ted

In order to achieve optimal settings for econo-

my and comfort, we recommend adjusting the

operating temperature of the c.h. water ac-

- 12 -

USE

INSTRUCTIONS FOR USE

cording to the outside temperature, position-

ing the knob as follows:

Fig. 2.6

From 5 to 15 °C

Between

- 5 and +5 °C

Lower

than - 5 °C

Your qualied installer will be able to recom-

mend the most suitable adjustment for your

system.

The temperature and pressure gauge (4, Fig.

1.3 on page 8) will allow you to check that the

set temperature is obtained.

Adjustment of temperature WITH the exter-

nal temperature probe (optional)

When the boiler is connected to the external

temperature probe (optional), the temperature

of the c.h. ow is automatically adjusted with

reference to the external temperature.

In this case the boiler must be properly set by

the Installer (section "External temperature

probe setting (optional)" to page 40) and the

c.h. ow temperature control knob 7 must be

positioned as illustrated in Fig. 2.7.

Fig. 2.7

+15

--- 15

2.5 Extinguishing

To turn the boiler off set the function selector 7

to the position shown in Fig. 2.8.

The appliance operation light 9 will ash every

4 seconds.

Fig. 2.8

When you do not expect to use the boiler for

a long period:

• Switch off the electricity supply to the boiler,

by means of the fused spur isolation switch;

• Shut off the gas supply cock 13 and the

valves for the water circuits tted under the

boiler (Fig. 2.9).

• Empty the water circuits, if necessary, as

shown in the installation instructions in the

section maintenance.

Fig. 2.9

Closed

position

- 13 -

USE

USEFUL ADVICE

3 USEFUL ADVICE

3.1 Central Heating

For reasonably economical service install a

room thermostat. Never shut off the radia-

tor in the area where the room thermostat

is installed.

If a radiator (or a convector) does not heat

up, check that no air is present in it and that

its valve is open. If the ambient temperature

is too high, do not alter the radiator valves.

Reduce the central heating temperature in-

stead by means of the room thermostat and

the function selector (7 in Fig. 3.1).

Fig. 3.1

3.2 Frost protection

This appliance is provided with a built in

anti-freeze system that operates the boiler

when the temperature is below 5 °C

Therefore, when the boiler is not lit and

used in cold weather, with consequent risk

of freezing do not switch off the boiler at

the fused spur isolation switch or close

the gas inlet cock.

3.3 Condensate drain

The condensate drain must not be modi-

ed or blocked. Blockage of the condensate

drain, caused by debris or freezing, can

cause automatic shutdown of the boiler.

If freezing is suspected and the pipe run is

accessible an attempt may be made to free

the obstruction by pouring hot water over

the exposed pipe an cleaning any blockage

from the end of the pipe.

If this fails to remedy the problem the assist-

ance of a Gas Safe registered installer or in

IE a competent person should be sought.

3.4 Periodic maintenance

For efcient and continuous operation of

the boiler, it is advisable to arrange mainte-

nance and cleaning by an Authorised Serv-

ice Centre Engineer, at least once a year.

During the service, the most important com-

ponents of the boiler will be inspected and

cleaned. This service can be part of a main-

tenance contract.

In particular, you are advised to have the

following checks carried out:

• condensing heat exchanger;

• burner;

• exhaust fume duct and ue;

• pressurisation of the expansion tank;

• lling up of the central heating circuit;

• bleeding of air from the central heating

system;

• general check of the appliance’s operation.

3.5 External cleaning

Before carrying out any clean-

ing, disconnect the appliance

from the electrical mains, using

the fused spur isolation switch

tted adjacent to the appliance.

To clean the external panels, use a cloth

soaked in soapy water. Do not use solvents,

abrasive powders or sponges.

Do not carry out cleaning of the appliance and/

or its parts with readily ammable substances

(for example petrol, alcohols, naphtha, etc.).

- 14 -

USE

USEFUL ADVICE

3.6 Operational faults

If the lock-out signal lamp (5 in Fig. 3.2)

comes on

This indicates that the safety lock-out has

stopped the boiler.

To re-start the boiler, it is necessary to press

the boiler reset button 6 (Fig. 3.2).

Fig. 3.2

6 5

For the rst lighting up and following main-

tenance procedures for the gas supply, it

may be necessary to repeat the resetting

operation several times so as to remove the

air present in the pipe work.

After ve consecutive resetting attempts the

reset button is inhibited. To restore its func-

tion it is necessary to switch the boiler off

and on from the electrical mains, using the

fused spur isolation switch tted adjacent to

the appliance.

Safety lock-out may occur even in case of a

blockage of the condensate drainage (e.g.

plugged drain pipe).

It is advisable to check the condensate

drainage pipe and traps for cleanness.

In this case and in case of persist-

ent lock-out call a competent and

responsible Service Engineer.

If noises due to air bubbles are heard

during operation...

You should check that the pressure on the

temperature and pressure gauge (Fig. 2.2

on page 10) is not below the correct setting.

If required, top up the system correctly, as

described in the section "Relling proce-

dure" to page 10. Bleed any air present in

the radiators, if necessary.

If the pressure on the temperature and

pressure gauge (4on page 8) has gone

down...

It is necessary to top up the appliance with

water again, so as to raise the pressure to

an adequate level as described in the sec-

tion "Relling procedure" to page 10. If top-

ping up with water has to be done very fre-

quently, have the system checked for leaks.

If water comes out of the pressure relief

valve

Check on the temperature and pressure

gauge (4on page 8) that the pressure in the

central heating circuit is not close to 3 bars.

In this case, temperature rise in the circuit

can cause the pressure relief valve to open.

So that this does not happen and to de-

crease the pressure to a normal value, it is

advisable to vent some of the water in the

appliance through the bleed valves present

in the radiators.

If water should occasionally leak from

the boiler...

Shut off the valves positioned under the

boiler (Fig. 2.9 on page 12) and call an Au-

thorised Service Centre Engineer.

In this case or in case of prob-

lems other than those men-

tioned here, switch off the boil-

er, as described in section

"Extinguishing" to page 12 and

call a competent and responsi-

ble Service Engineer.

- 15 -

INSTALLATION

TECHNICAL INFORMATION

4 TECHNICAL INFORMATION

4.1 Overview

Fig. 4.1

- 16 -

INSTALLATION

TECHNICAL INFORMATION

4.2 Main diagram

Fig. 4.2

10 C.h. return pipe

11 Gas inlet valve

12 Condensate drain pipe

13 C.h. ow pipe

14 Condensing heat exchanger

15 C.h. temperature probe NTC

16 Condensing heat exchanger

17 Safety thermostat

18 Flame-detecting electrode

19 Transformer

20 Air manifold

21 C.h. pressure relief valve

22 Automatic air purger valve

23 Main circuit drain valve

11 10 12 13

- 17 -

INSTALLATION

TECHNICAL INFORMATION

24 Pump

25 Pump vent plug

26 Gas valve

27 Primary circuit ow switch

28 Condensate trap

29 Fan

30 Spark generator

31 Ignition electrode

32 Burner

33 Flue temperature probe NTC

34 Safety thermal fuse

35 Gas valve inlet pressure test point

36 Gas valve outlet pressure test point

37 C.h. expansion tank

38 By-pass valve

39 Flue outlet pipe

40 Air intake pipe

41 Flue exhaust sampling point

42 Air sampling point

- 18 -

INSTALLATION

TECHNICAL INFORMATION

4.3 Technical data mod.

M110B.24SM/...

Heat input

Nominal

net

(A)

kW 25,7

BTU/h 87 685

gross

(B)

kW 28,5

BTU/h 97 238

Minimum

net

(A)

kW 6,0

BTU/h 20 471

gross

(B)

kW 6,7

BTU/h 22 859

Useful output

Maximum

kW 25,1

BTU/h 85 638

Minimum

kW 5,8

BTU/h 19 789

Maximum condensing

kW 27,3

BTU/h 93 144

Minimum condensing

kW 6,3

BTU/h 21 495

Central heating

Maximum ow temp. °C 85

Minimum ow temp. °C 25

Maximum pressure

kPa 250

bar 2,5

Minimum pressure

kPa 30

bar 0,3

Available head (in 1000 l/h)

kPa 23

bar 0,23

Seasonal efciency

(C)

band A

% 90,2

Gas supply pressures

Gas Pa mbar

Natural G20

Nom 2000

Min 1700 17

Max 2500 25

Propane G31

Nom 3700 37

Min 2500 25

Max 4500 45

1 mbar approximately equals 10 mm H

Max. gas rate

Natural G20 m

/h 2,72

Propane G31 kg/h 2,00

Min gas rate

Natural G20 m

/h 0,63

Propane G31 kg/h 0,47

Restrictors references

Gas

(ø mm)

Air

(color)

Natural G20 5,65 Fuchsia

Propane G31 4,30 Fuchsia

Electrical Data

Voltage V 230

Frequency Hz 50

Power consumption W 108

Protection degree IPX4D

External fuse rating A 3

Internal fuse rating A

N°2-

3,15 AF

N°1-0,4 T

- 19 -

INSTALLATION

TECHNICAL INFORMATION

Flue design

Coaxial ue pipe diameter mm 60/100

Twin split pipes diameter mm 80/80

Roo ue pipe diameter mm 80/125

Nominal heat ow rate

(A) (E)

kW 25,7

Exhaust temperature

(E)

°C 85

Smoke production

(E)

kg/h 40

contents

content with gas G20

(range min-max)

% 9,0-9,8

content with gas G31

(range min-max)

10,0-11,0

At nominal heat input of 25,7 kW

(A)(E)

content with gas G20

(range min-max)

% 9,0-9,8

content with gas G31

(range min-max)

10,0-11,0

At minimum heat input of 6,0 kW

(A)(E)

Other ue gas gures

At nominal heat input - non condensing

content % 4,3-4,3

CO content ppm 200

Exhaust temperature

(D)

°C 85

Other specications

Height mm 803

Width mm 400

Depth mm 350

Weight (dry) kg 44,0

Water volume in the boiler

(up to 1 bar)

l (kg) 2

(A)

referred to the net caloric value at 15 °C and

1013,25 mbar:

G20 = 34,02 MJ/m

- G31 = 46,34 MJ/kg

(B)

referred to the gross caloric value at 15 °C and

1013,25 mbar:

G20 = 37,78 MJ/m

- G31 = 50,37 MJ/kg

(C)

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 calcu-

lated have been certied by a notied body.

(D)

Values subject to tolerance

- 20 -

INSTALLATION

TECHNICAL INFORMATION

4.4 Hydraulic specications

The hydraulic specications in Fig. 4.3 rep-

resent the pressure (available head for the

central heating system) as a function of the

ow rate.

The load loss due to the boiler has already

been subtracted.

Fig. 4.3

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0 200 400 600800 1000 1200 1400

kPabar

l/h

Operation of integral By-pass valve

The boiler is equipped with an automatic by-

pass valve (38on page 17), which protects

the condensing primary exchanger.

The integral automatic by-pass will ensure

a minimum ow through the primary heat

exchanger of the boiler in the event that

the ow around the central heating circuit is

restricted due to closure of thermostatic or

system control valves.

4.5 Expansion vessel

Note: this boiler is designed for operation

only in a sealed central heating system.

The height difference between the pressure

relief valve and the highest point in the sys-

tem may be 10m at most.

For greater differences, increase the pre-

load pressure in the expansion vessel and

the system, when cold, by 0.1 bar for each

additional 1m.

Fig. 4.4

Capacity l 7,0

Pre-load pressure

kPa 100

bar 1,0

Maximum volume of water in the

system *

l 109

* Where conditions are:

• Average maximum temperature of the sys-

tem is 85 °C

• Initial temperature when lling up the sys-

tem is 10 °C

For systems with volumes great-

er than 109l, an additional expan-

sion vessel must be provided.

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Biasi Riva Advance M110B.24SR/C User manual

Brand: Biasi

Model: Riva Advance M110B.24SR/C

Category: Water heaters & boilers

Type: User manual

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Biasi Riva Advance M110B.24SR/C User manual

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