Biasi RIVA COMPACT HE MK2 M96A.24SR/C User manual

Wall hung, fan flue, room sealed, high efficiency gas boiler

User manual and

Installation instructions

RIVA COMPACT HE MK2

Models

M96A.24SR/C System boiler

M96A.28SR/C System boiler

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

Congratulations on your choice.

RIVA COMPACT HE MK2 are condensing high efficiency sealed chamber fan flue gas

boilers.

They are fully electronically controlled and have electronic ignition.

Thematerialstheyaremadeofandthecontrolsystemstheyareequippedwithgiveyousafety,

a high level of comfort and energy savings to allow you to get the greatest benefit out of

independent heating.

RIVA COMPACT HE MK2 allow a higher efficiency by reducing the flue 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.

Remember that...

nThe manual

--- must be read thoroughly, so that you will

be able to use the boiler in a safe and sen-

sible way;

--- must be carefully kept. It may be necess-

ary for reference in the future.

nFirst lighting up must be carried out by

competent and responsible engineer.

nThe manufacturer

--- disclaim all liability for any translations of

the present manual from which incorrect in-

terpretation may occur

--- cannot be held responsible for non---ob-

servance of instructions contained in this

manual or for the consequences of any pro-

cedure not specifically described.

Using the boiler...

nBefore lighting the boiler you are ad-

vised to have a professionally qualified per-

son check that the installation of the gas

supply

--- is gas---tight;

--- is of the correct gauge for the flow to the

boiler;

--- is fitted with all the safety and control de-

vices required by the current Regulations.

nEnsure that

--- the installer has connected the pressure

relief valve outlet to a drain pipe. The manu-

facturers are not responsible for damage

caused by opening of the pressure relief

valve and consequent escape of water, if not

connected correctly to the drain.

--- the installer has connected the conden-

sate outlet to a suitable drain pipe.

nOn 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 qualified person.

nDo not touch the appliance with parts of

thebodythatarewetordampand/orbare

feet.

nDo not block or modify the condensate

outlet and pipework

nIn case of structural work or mainten-

ance near the exhaust duct and/or fume ex-

haust devices or their attachments, turn off

the appliance. On completion of the work,

have a professionally qualified person check

their efficiency.

nRepairs (under guarantee) must be car-

ried out only by an approved engineer, using

genuine spare parts. Thus do no more than

switching off the boiler yourself (see the in-

structions).

nYour boiler allows heating up of water to

a temperature less than boiling point;

--- must be connected to a central heating

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

system and/or a hot water supply system,

compatible 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 condi-

tions.

nDuring the operation it is quite normal

that the boiler produces a white plume of

condensation vapour from the flue terminal.

This is due to the high efficiency of the ap-

pliance and may be particularly evident with

low outdoor temperatures.

Safe handling of

appliance

When handling or lifting always use safe tech-

niques

--- keep your back straight, bend your knees, don’t

twist

--- move your feet, avoid bending forwards and

sideways and keep the load as close to your body

as possible.

Wherepossibletransporttheboilerusingasack

truck or other suitable trolley.

Always grip the boiler firmly, and before lifting feel

where the weight is concentrated to establish the

centre of gravity, repositioning yourself as necess-

ary.

Safe handling of

substances

These products are manufactured in accordance

with ISO 9000 and do not, and will not, contain any

hazardous materials or substances such as as-

bestos, mercury or C.F.C.’s.

The appliance packaging does not contain any

substances, which may be considered a hazard to

health.

Combustion chamber panels

Material: mineral fibres

Known hazards --- Some people can suffer red-

dening 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 le-

vels are only likely to arise following harsh ab-

rasion. In general, normal handling and use will

not present high risk, follow good hygiene prac-

tices, wash hands before, touching eyes, consum-

ing food, drinking or using the toilet.

Firstaid --- Medicalattentionmustbesoughtfol-

lowing eye contact or prolonged reddening of the

skin.

Thermostat / Temperature gauge

Description --- Sealed phial and capillary contain-

ing liquid.

Known hazards --- irritating to skin, eyes and

throat. Vapour is harmful. Inflammable --- do not

extinguish with water.

Precautions --- Do not incinerate. Avoid contact

with broken/leaking phials. Do not purposely

puncture.

Firstaidmedicalattentionmustbesoughtfollow-

ing eyes/skin contact, wash with clean water.

Appliance category II2H3+ Gas G20 20 mbar, G30 29 mbar, G31 37 mbar

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

This appliance conforms with the following EEC directive:

DGas appliance Directive 90/396/CEE

DBoiler Efficiency Directive 92/42/CEE

DElectromagnetic Compatibility Directive 89/336/CEE

DLow voltage Directive 73/23/CEE

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 cannot be considered as a contract to-

wards third parties.

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

Boiler installation and commissioning tips

nThe installation must be carried out by

a qualified person who will be responsible for

observing the current Regulations.

Installing the boiler...

nDonotforgettoremovethetransitcaps

and plugs from the boiler connections these

are fitted to every boiler.

nKeep the boiler clear of dust during in-

stallation and in particular do not allow any

dust or debris to enter the top of the boiler

where the flue connection is made. It is rec-

ommended that you put a dust sheet over the

top of the boiler until you are ready to make

the flue connection.

nBecause every boiler is fired 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.

nRemember to release the auto air purge

before filling the boiler. See the instructions to

identify the location of this device.

nDo not remove the cap of the pressure

test points of the air switch (top left side of the

boiler).

nYou are strongly advised to flush out the

system both cold and hot in order to remove

system and installation debris.

nIt is also sensible to initially fire and com-

mission the boiler before connecting any ex-

ternal controls such as a room thermostat. By

this method if you have a subsequent prob-

lem following the addition of an external con-

trol you can eliminate the boiler from your

fault analysis.

nDonotforgettorangeratetheboilerto

suit the system requirements. This pro-

cedure is covered in the commissioning sec-

tion of the installation manual.

nIf the boiler is fitted with a digital pro-

grammer, when setting the times for auto-

matic operation, remember that for every

“ON” time there must be an “OFF” time to fol-

low and that on every occasion you enter a

time you must also indicate which days that

you want the boiler to follow the timed set-

tings.

nSome products incorporate an anti cycl-

ing time delay. It is normal when first switch-

ing 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 ignition delay cycle does not prevent

normal operation of the boiler to provide

d.h.w.

nIf you are in any doubts as to the installa-

tion or operation of the boiler please read the

instruction manuals thoroughly and then if

necessary contact Biasi UK for advice and

assistance.

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

Technical Helpline on tel. 0121 506 1350

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

TABLE OF CONTENTS

1 Appliance description 2..........

1.1 Overview 2......................

1.2 Control panel 2..................

1.3 Isolation valves 2.................

1.4 Technical data 2.................

1.5 Operation lights 3................

2 Instructions for use 4............

2.1 Warnings 4......................

2.2 Refilling procedure 4..............

2.3 Ignition 5........................

2.4 C.h. circuit temperature 5..........

2.5 Extinguishing 5..................

3Usefuladvice 7.................

3.1 Central heating 7.................

3.2 Frost protection 7................

3.3 Condensate drain 7..............

3.4 Periodic maintenance 7...........

3.5 External cleaning 7...............

3.6 Operational faults 7...............

4 Technical information 9..........

4.1 Overview 9......................

4.2 Main diagram 10..................

4.3 Hydraulic specifications 11.........

4.4 Expansion vessel 11...............

4.5 Technical data mod. M96A.24SR/... 12

4.6 Technical data mod. M96A.28SR/... 14

5 General requirements 16..........

5.1 Related documents 16.............

5.2 Location of appliance 16...........

5.3 Flue system 16....................

5.4 Gas supply 17....................

5.5 Air supply 17.....................

5.6 Ventilation 17.....................

5.7 Condensate drain 17..............

5.8 Water circulation (c.h.) 18...........

5.9 Water treatment 19................

5.10 Electrical supply 19................

6 Installation 20....................

6.1 Warnings 20......................

6.2 Precautions for installation 20.......

6.3 Installing the bracket 20............

6.4 Overall dimensions 21.............

6.5 Joints 21.........................

6.6 Mounting the boiler 21.............

6.7 Fitting the flue system 22...........

6.8 Choice of flue 22..................

6.9 Electrical connections 25...........

6.10 External frost protection 26.........

6.11 Connecting a system boiler

to a cylinder 27...................

7 Commissioning 30...............

7.1 Electrical installation 30............

7.2 Gas supply installation 30..........

7.3 Initial filling of the system 30........

7.4 Condensatepipeandtraps 31......

7.5 Lighting the boiler 31..............

7.6 Checking the gas pressure

at the burner 31...................

7.7 Checking the burner ignition 32.....

7.8 Checking the ignition device 33.....

7.9 Checking the flue system 33........

7.10 Checking the condensate drain pipe 33

7.11 Instructing the user 33.............

8 Gas conversion 34...............

8.1 Warnings 34......................

8.2 Procedures 34....................

9 Maintenance 36..................

9.1 Warnings 36......................

9.2 Dismantling the external panels 36...

9.3 Emptying the c.h. system 36........

9.4 Combustion analysis check 37......

9.5 Cleaning the primary heat exchanger 37

9.6 Checking the pressurisation

in the expansion vessel 37..........

9.7 Cleaning the burner 37.............

9.8 Checking the flue 37...............

9.9 Drain pipe inspection 37............

9.10 Visual inspection of appliance 37....

9.11 Gas pressures and tightness 37.....

Abbreviations used in the manual:

C.h. = Central heating

D.h.w. = Domestic hot water

D.c.w. = Domestic cold water

USE

INSTALLATIONMAINTENANCE

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

1APPLIANCE DESCRIPTION

1.1 Overview

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

8Serviceknob

9 Appliance operation lights

The service knob 8 is useless for the normal oper-

ation of the boiler.

It must be used only by a qualified person during

commissioning and servicing.

1.3 Isolation valves

Fig. 1.2 (bottom view of the boiler)

10 Condensate drain pipe

11 C.h. return valve

12 Gas inlet valve

13 C.h. flow valve

1.4 Technical data

For detailed technical data see section 4.5 or 4.6

of this manual.

78 6 54

Fig. 1.3

USE

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

Appliance description

1.5 Operation lights

Three lights (9 in Fig. 1.3) give detailed indication

regarding the operation of the boiler.

The following table gives the relationship between

each of the possible light combinations and their

meaning.

A short pulse every 4

seconds:

stand--- by condition

Function selector in

position.

Anti--- freeze system active

1 second pulse every 2

seconds: normally

operating boiler. Function

selector in position

C.h. operation

Frost protect operation

Faulty c.h. temperature

probe NTC

Faulty flue temperature

probe NTC

Faulty primary circuit

(no water or low c.h.

pressure)

Faulty primary circuit

(absence of flow)

Faulty air pressure sensor

Lack of burner ignition (no

ignition signal from the full

seqence ignition device)

Safety thermostat lock out

Flue temperature probe

NTC lock out

Flame detection error

Other faults

Lack of power supply or

fauly electr. control p.c.b.

Meaning of symbols

amp OFF

amp ON

Flashing lamp, alone or simultaneously

with an other lamp.

Flashing lamp, alternate with another

lamp.

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 described in

section 2.5 on page 5 and call a competent and re-

sponsible Service Engineer.

USE

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

2INSTRUCTIONS FOR USE

2.1 Warnings

Our Company supports the Benchmark in-

itiative. The Benchmark Log Book is lo-

cated at the back of this manual and should

be completed by the Installing/Commiss-

sioning Engineer and handed over to the

User for future reference by other visiting

Engineers. Also included is the Service In-

terval Record card that should be com-

pleted by the Service Engineer following

the annual service maintenance of the

boiler and system.

All CORGI Registered Installers carry a

CORGI ID card, and have a registration

number. Both should be recorded in your

Benchmark Log Book. You can check your

installer is registered by calling CORGI di-

rect on 01256 372300.

In order to guarantee safety and correct oper-

ation, 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 filled

with water (even if the boiler is only used for

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

cated on the temperature and 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 system

will require topping up. A filling loop is normally

provided by the installer for this purpose.

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 freezing

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

giveninsection2.5onpage5.

2.2 Refilling procedure

1 Isolate the boiler from the electrical supply at

the fused spur. Reconnect the filling loop as

demonstrated in Fig. 2.1.

Te m p o r a r y

connection

Control valve

Double check valve

Supply pipe

(cold water inlet)

C.h. return pipe

Fig. 2.1

2 Open the valves of the filling loop and watch

the gauge until it reaches normal filling pres-

sure as shown in Fig. 2.2.

Normal filling

pressure

Fig. 2.2

3 Close the valves and remove the filling loop.

If you experience any difficulty with the oper-

ation of the boiler, switch off the boiler immedi-

ately at the fused spur isolation switch and

contactyourInstalleroranapprovedService

Engineer

Air introduced into the boiler during this filling pro-

cess will vent through the automatic air purger

fitted to the boiler. You may also find it necessary

to vent air from your radiator circuit 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.

USE

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

Instructions for use

2.3 Ignition

1 Check that the valves located in the lower part

of the boiler are open (Fig. 2.3).

Open position

Fig. 2.3

2 Turn on the electricity supply to the boiler,

switching on the fused spur isolation switch.

The appliance operation light 9 (Fig. 2.4) will

flash every 4 seconds (stand---by condition).

3 To operate the boiler, position the function se-

lector 7 as in Fig. 2.4.

The appliance operation light 9 will flash every

2 seconds (operating boiler).

Fig. 2.4

2.4 C.h. circuit temperature

The output temperature of c.h. water is adjustable

from a minimum of about 40°C to a maximum of

about 85°C (Fig. 2.5), by turning the function se-

lector (7).

Adjustment of c.h. output on the boiler is auto-

matic. The greatest output pre---set in the factory

can, however, be reduced in level according to

actual system requirements; this does not affect

the maximum output in d.h.w. operation.

Such adjustments must be carried out by a quali-

fied person; therefore we advise you to contact

yourinstallerorServiceAgent.

Adjustment of the boiler temperature alters the

gas flow at the burner according to the thermal de-

mand in the system. So it is usual to see the burner

lit at the minimum level for more or less long

periods.

Minimum

Maximum

Fig. 2.5

Adjustment

In order to achieve optimal settings for economy

and comfort, we recommend adjusting the oper-

ating temperature of the c.h. water according to

the outside temperature, positioning the knob as

follows:

Lower than

--- 5 ˚C

From 5 to 15 ˚C

Between

--- 5 a n d + 5 ˚C

Fig. 2.6

Your qualified installer will be able to recommend

the most suitable adjustment for your system.

The temperature and pressure gauge (4, Fig. 1.3

on page 2) will allow you to check that the set tem-

perature is obtained.

2.5 Extinguishing

To turn the boiler off set the function selector 7 to

the position shown in Fig. 2.7.

USE

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

Instructions for use

The appliance operation light 9 will flash every 4

seconds.

Fig. 2.7

When you do not expect to use the boiler for a long

period:

1 Switch off the electricity supply to the boiler, by

means of the fused spur isolation switch;

2 Shut off the gas supply cock 12 and the valves

for the water circuits fitted under the boiler

(Fig. 2.8).

3 Empty the water circuits, if necessary, as

showninsectionGeneral access and emptying

hydraulic circuits in the service manual.

Closed position

Fig. 2.8

USE

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

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