Biasi Riva Plus HE Combi ERP 24kw and 28kw User manual

Wall hung, fanflue, roomsealed, high efficiency gas boiler

User manual and

Installation instructions

Riva Plus HE ERP

Models G.C. Appl. No.

RIVA PLUS HE 24C ERP 47-583-41 COMBI BOILER

RIVA PLUS HE 28C ERP 47-583-42 COMBI BOILER

- 2 -

WARNING

Congratulations on your choice.

Riva Plus HE ERP 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 Plus HE ERP 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 are important informa-

tion that must be carefully read.

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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 and must be carefully kept. It may be necessary for reference in the

future.

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

The manufacturer

• disclaims all liability for any translations of the present manual from which incorrect

interpretation 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 Registered Gas

Safe Registered Engineer check that the installation of the gas supply is

• gas-tight;

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

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

Ensure that

• the installer 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 water, if this is not con-

nected and terminated;

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

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WARNING

On detecting the smell of gas:

• do not 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 ue and ue terminal turn off the

appliance. On completion of the work, have a professionally qualied person check there

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 therefore it

• 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 ways and 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.

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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.

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 Safe Registered Engineer who will

be responsible for observing the current Regulations and the completion of the Bench-

mark Gas Boiler System Commissioning Checklist, located at the back of this User man-

ual.

Internally installed mains water meters

Please ensure if the property has had a water meter installed inside the property, that it does

not include a non-return valve. Should you nd that it does include a non-return valve then

provision of a WRAS approved mini expansion vessel must be made.

Biasi optional WRAS approved easy t 15 mm mini shock arrestor kit BI9999 999 can

be obtained through your local Biasi stockist.

- 6 -

WARNING

Abbreviations used in the manual:

C.H. = Central heating

D.H.W. = Domestic hot water

D.C.W. = Domestic cold water

Installing the boiler...

You must ensure that you remove the transit caps and plugs from the boiler connections

which 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.

Remember to release the auto air purge valve on the pump assembly before lling the

boiler. See the instructions to identify the location of this device.

This boiler allows you 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 ush out the system both hot and cold in order to remove any

system and installation debris to the British Standard BS 7593 code of practice.

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 subse-

quent problem this method can eliminate the external controls from your fault analysis.

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

sistance.

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

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 Helpline on tel. 01922 714 600.

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TABLE OF CONTENTS

1 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 D.H.W. temperature ..................... 12

2.6 Switching off ........................... 13

2.7 Built in time switch A ..................... 13

2.8 Built in time switch B..................... 15

2.9 Built in time switch C..................... 17

2.10 Built in time switch D..................... 19

3 USEFUL ADVICE.................... 22

3.1 Central Heating......................... 22

3.2 Frost protection......................... 22

3.3 Condensate drain ....................... 22

3.4 Periodic maintenance .................... 22

3.5 External cleaning ....................... 22

3.6 Operational faults ....................... 23

4 TECHNICAL INFORMATION........... 25

4.1 Overview.............................. 25

4.2 Main diagram .......................... 26

4.3 Technical data mod. Riva Plus HE 24C ERP . . 28

4.4 Technical data mod. Riva Plus HE 28C ERP . . 32

4.5 Hydraulic specications .................. 36

4.6 Expansion vessel ....................... 36

5 GENERAL REQUIREMENTS .......... 37

5.1 Related documents...................... 37

5.2 Location of appliance .................... 37

5.3 Flue system ........................... 38

5.4 Gas supply ............................ 39

5.5 Air supply ............................. 40

5.6 Ventilation ............................. 40

5.7 Condensate drain ....................... 40

5.8 Water circulation (C.H.) .................. 41

5.9 Domestic water......................... 42

5.10 Water treatment ........................ 42

5.11 Electrical supply ........................ 43

6 INSTALLATION ..................... 44

6.1 Warnings.............................. 44

6.2 Precautions for installation ................ 44

6.3 Installing the bracket..................... 45

6.4 Overall dimensions ...................... 45

6.5 Joints ................................ 45

6.6 Mounting the boiler ...................... 46

6.7 Fitting the ue system.................... 46

6.8 Choice of ue .......................... 46

6.9 Electrical connections.................... 49

6.10 External frost protection .................. 51

7 COMMISSIONING . . . . . . . . . . . . . . . . . . . 52

7.1 Warnings.............................. 52

7.2 Electrical installation ..................... 52

7.3 Gas supply installation ................... 52

7.4 Filling the D.H.W. system . . . . . . . . . . . . . . . . . 52

7.5 Initial lling of the system ................. 52

7.6 Condensate pipe and traps ............... 54

7.7 Lighting the boiler ....................... 54

7.8 Checking the gas pressure at the burner ..... 55

7.9 Checking the burner ignition............... 56

7.10 Checking the ignition device ............... 56

7.11 Checking the ue system ................. 56

7.12 Check pump operation/pump release........ 57

7.13 Checking the condensate drain pipe ........ 57

7.14 Instructing the user ...................... 57

8 GAS CONVERSION ................. 58

8.1 Warnings.............................. 58

8.2 Procedures ............................ 58

9 MAINTENANCE..................... 60

9.1 Warnings.............................. 60

9.2 Dismantling the external panels ............ 60

9.3 Emptying the D.H.W. system .............. 60

9.4 Emptying the C.H. system ................ 60

9.5 Combustion analysis check ............... 61

9.6 Cleaning the primary heat exchanger........ 61

9.7 Checking the pressurisation in the expansion

vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

9.8 Cleaning the burner ..................... 61

9.9 Checking the ue system ................. 61

9.10 Drain pipe inspection .................... 61

9.11 Visual inspection of appliance ............. 61

9.12 Gas pressures and tightness .............. 61

9.13 Water inhibitor concentration .............. 61

10 BENCHMARK COMMISSIONING AND

SERVICING SECTION................ 63

Gas boiler system commissioning checklist ... 64

Service record.......................... 65

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:

Gas Directive Gas 2009/142/EC

Efciency Directive 92/42/EEC

Electromagnetic Compatibility Directive 2014/30/EU

Low Voltage Directive 2014/35/EU

Ecodesign Requirements Directive 2009/125/EC

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

2

3

1 Case front panel

2 Control panel

3 Control panel cover

1.2 Control panel

4 C.H. circuit temperature and pressure

gauge

5 Time switch (C.H. control)

6 Lock-out signal lamp

7 Lockout reset button

8 Function selector and C.H. temp. con-

trol knob

9 D.H.W. temperature control knob

10 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

16

15

14

13

12

11

11 Condensate drain pipe

12 C.H. return valve

13 D.C.W. inlet valve

14 Gas inlet valve

15 D.H.W. outlet pipe

16 C.H. ow valve

1.4 Technical data

For detailed technical data see sections

"Technical Data" on pag. 28 or pag. 32.

10 9 8 7 6 5 4

Fig. 1.3

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USE

APPLIANCE DESCRIPTION

1.5 Operation lights

Three lights (10 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 combina-

tions and their meaning.

A short pulse every

4 seconds: stand-by

condition

position.

Anti-freeze system ac-

tive

1 second pulse every

2 seconds: normally

operating boiler. Func-

tion selector in

or

position

C.H. operation

D.H.W. 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 "Switching off" to page 13

and call a competent and responsible Ser-

vice Engineer.

Faulty C.H. tempera-

ture probe NTC

Faulty D.H.W. tempera-

ture probe NTC

Faulty ue temperature

probe NTC

Faulty primary circuit

(no water or low C.H.

pressure)

Faulty primary circuit

(absence of ow)

Faulty air pressure

sensor

Lack of burner ignition

(no ignition signal from

the full sequence igni-

tion 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:

Lamp OFF

Lamp ON

Flashing lamp, alone or simulta-

neously with an other lamp

Flashing lamp, alternate with an-

other lamp

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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 in

-

dicated 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 "Switching off" to page 13.

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

4

• Close the valves and remove the lling loop.

If you experience any difculty with the op-

eration of the boiler, switch off the boiler

immediately at the fused spur isolation

switch

and

contact your Installer or an ap-

- 11 -

USE

INSTRUCTIONS FOR USE

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 10 (Fig. 2.4)

will ash every 4 seconds (stand-by condi

-

tion).

•

If the boiler is to be used for C.H. and

D.H.W., position the function selector 8 as

in Fig. 2.4. The appliance operation light 10

will ash every 2 seconds (operating boiler).

Fig. 2.4

10

8

• If D.H.W. supply only is required, position

the function selector 8 as in Fig. 2.5. The

appliance operation light 10 will ash every

2 seconds (operating boiler).

Fig. 2.5

10

8

2.4 C.H. circuit temperature

The output temperature of C.H. water is ad-

justable from a minimum of about 40°C to a

maximum of

about 85°C (Fig. 2.6), by turning

the function selector (8).

Adjustment of C.H. output on the boiler is au

-

tomatic.

The greatest

output pre-set in the factory can,

however, be reduced in level according to ac-

tual system requirements; this does not affect

the maximum output in

D.H.W

. operation.

Such adjustments must be carried out by a

qualied person; therefore we advise you to

contact your installer or Service Agent.

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.

Fig. 2.6

Minimum

Maximum

- 12 -

USE

INSTRUCTIONS FOR USE

Adjustment

In order to achieve optimal settings for econo-

my and comfort, we recommend adjusting the

operating temperature

of the C.H. water ac-

cording to the outside temperature, position-

ing the knob as follows:

Fig. 2.7

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.

2.5 D.H.W. temperature

The temperature of the D.H.W. leaving the

boiler can be varied from a minimum of about

35°C to a maximum of about 55°C (Fig. 2.8),

by turning the temperature control knob 9.

Fig. 2.8

Minimum

Maximum

Adjustment of the D.H.W. temperature is com-

pletely separate from that of the C.H. circuit.

The adjustment

system integrated within the

boiler automatically controls the ow of gas to

the burner in order to keep the temperature of

D.H.W. delivered constant, between the limits

of maximum and minimum output.

Where the demand is at a low level or with the

temperature set to the minimum, it is normal to

see a cycle of lighting and extinguishing of the

burner when running.

Adjustment

It is advisable to adjust the D.H.W. tempera

-

ture to a level commensurate with the de-

mand, minimising the need to mix with cold

water.

In this way, the automatic control facili-

ties will be fully exploited.

Moreover,

where the amount of limescale pre-

sent in the water may be particularly great,

not exceeding

the position in Fig. 2.9 of the

D.H.W. temperature control knob 9 corre-

sponding to about 50°C (Fig. 2.9),minimises

annoying

incidences

of scale deposits and

clogging.

Fig. 2.9

In these cases, however, it is advisable to

install a small water treatment device or sof-

tener. With such a device you should avoid

periodic descaling.

Consequently,

the D.H.W. heat exchanger will

keep its performance consistent for a longer

period of time with resulting gas savings.

If the demand for D.H.W. is so great as to

prevent reaching a high enough temperature,

have the appropriate output limiting valve in

-

stalled by your installer or an Authorised Ser-

vice Engineer.

- 13 -

USE

INSTRUCTIONS FOR USE

2.6 Switching off

To turn the boiler off set the function selector 8

to the position shown in Fig. 2.10.

The appliance operation light 10 will ash eve-

ry 4 seconds.

Fig. 2.10

10

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 14 and the

valves for the water circuits tted under the

boiler (Fig. 2.11).

• Empty the water circuits, if necessary, as

shown in section General access and emp

-

tying hydraulic circuits in the service manual.

Fig. 2.11

14

Closed position

2.7 Built in time switch A

The boilers are equipped with a built in elec-

tronic time switch (5, Fig. 1.3

on page 8) which

controls the C.H. operation.

Fig. 2.12

G

F E D C B

A

H

Display and control panel:

A Mode selector switch

B Reset button

C Enter button

D Increase “+” setting button

E Decrease “-” setting button

F On-off button

G Time display

H ON-OFF display

Setting the current time

Note: with a new unit or when the reset button

B has been pressed and the selector switch

A is to the

position, the time display G is

ashing.

Set the mode selector switch A to the

posi-

tion and press the buttons D or

E until the cur-

rent time appears in the display G.

The clock

starts by moving the switch A to the

AUTO position.

Setting example shown in Fig. 2.13:

Current time 16.30.

Fig. 2.13

A

Setting the switching time

20 memory locations are available, corre-

sponding to 10 on-off sequences.

- 14 -

USE

INSTRUCTIONS FOR USE

Set the mode selector switch A to the C1 posi-

tion.

The symbols

shown in Fig. 2.14 appears in

the display.

Fig. 2.14

A

Press the buttons D or E to set the desired

ON time. Press the “enter” button C to conrm

the setting and to continue programming the

OFF time.

Set the OFF time as explained above for the

ON setting and conrm by pressing the “enter”

button C. Proceed in the same way for other

settings.

Setting example shown in Fig. 2.15:

I ON time 7.45.

J OFF time 10.30.

Fig. 2.15

I J

Activating the timed settings

Set the mode selector switch A to the AUTO

position shown in Fig. 2.16.

The current time appears in the display. The

ON-OFF display H indicates the current state

of operation (according to the settings).

Fig. 2.16

A

Note: when the mode selector switch A is in

the AUTO position and the boiler is switched

off at the fused spur isolation switch, the dis-

play H

indicates only the OFF state. The other

indications are blanked.

Reading the timed settings

Set

the mode selector switch A to the C1 posi

-

tion. The symbols shown in Fig. 2.14

appears

in the display.

Press the “enter” button C. Each time the but-

ton is pressed the display shows the details of

the next setting.

Changing or deleting the timed settings

Set

the

mode selector switch A to the C1 posi

-

tion. The symbols shown in Fig. 2.14

appears

in the display.

Press the “enter” button C until the display

shows the setting to be modied or deleted.

The time setting can be modied now by

pressing button D or E and the operation can

be switched on or off by pressing the button F.

To delete a time set press the button D or E

until the symbols shown in Fig. 2.14 appears

in the time display G.

The new settings are memorized by moving

the switch A to a different position.

Manual operation

The operation of the time switch can be forced

on or off constantly or for a timed period.

To force constantly on or off the timer opera

-

tion set the mode selector switch A to

the TIM-

ER position. The symbols shown in Fig. 2.17

appears on the display.

Fig. 2.17

The operation can be switched permanently

on or off by pressing the button F and leaving

the switch A in the TIMER position. To force a

timed delay on or off operation, set the mode

selector switch A in the TIMER position.

Set the time delay by pressing the button D or

E and the operation can be forced on or off by

pressing the button F.

The time delay can be set within the following

ranges:

- 15 -

USE

INSTRUCTIONS FOR USE

1 to 23 hours with steps of 1 hour

1 to 27 days with steps of 1 day.

The time delay setting is activated by moving

the switch A to the AUTO position.

The ON-OFF display H ashes indicating that

the current state of operation has been forced.

To delete the timed delay setting, set the mode

selector switch A in the TIMER position, press

the button D or E until the symbols shown in

Fig. 2.17 appears in the display and then set

the mode selector switch A to the AUTO posi

-

tion.

Setting example shown in Fig. 2.18:

forced ON state for 4 hours.

Fig. 2.18

Resetting

To completely reset the timer, press the reset

button with a pointed object (pencil).

CAUTION: pushing the reset button will com

-

pletely erase the settings as well as all the

data, including the current time.

2.8 Built in time switch B

The combiboilers are equipped with a built in

electronic time switch which controls the C.H.

operation.

Fig. 2.19

G

F E D C B

A

H

Display and control panel

A Mode selector switch

B Reset button

C OK button

D Increase “+” setting button

E Decrease "-” setting button

F On-off button

G Time display

H ON-OFF display

Setting the current time

Press repeatedly the button A until the display

shows the symbol

.

Press the buttons D or E until the current time

appears in the display G.

The clock starts by pressing the button A to

show the symbol AUTO.

Setting example shown in Fig. 2.20:

Current time 16.30, day Thursday.

Fig. 2.20

A

Setting the switching time

28 memory locations are available, corre-

sponding to 14 on-off sequences.

Press repeatedly

the button A until the display

shows the symbol C1.

The symbols shown in Fig. 2.21 appears in

the display.

Fig. 2.21

A

Press the buttons D or E to set the desired

ON time. Press the “OK” button C to conrm

the setting and to continue programming the

OFF time.

Set the OFF time as explained above for the

ON setting and conrm by pressing the “OK”

button C. Proceed in the same way for other

settings.

- 16 -

USE

INSTRUCTIONS FOR USE

Setting example shown in Fig. 2.22:

K ON time 7.45.

L OFF time 10.30.

Fig. 2.22

K L

Activating the timed settings

The current time appears in the display. The

ON-OFF display H indicates the current state

of operation (according to the settings).

Fig. 2.23

A

Note: when the display shows the symbol

AUTO and the boiler is switched off at the

fused spur isolation switch, the display H in-

dicates only the OFF state. The other indica-

tions are blanked.

Reading the timed settings

Press

repeatedly

the button A until the display

shows the symbol C1 (Fig. 2.21).

The symbols shown in Fig. 2.21 appears in

the display.

Press the “OK” button C. Each time the button

is pressed the display shows the details of the

next setting.

Changing or deleting the timed settings

Press repeatedly the button A until the display

shows the symbol C1 (Fig. 2.21).

The symbols shown in Fig. 2.21 appears in

the display.

Press the “OK” button C until the display

shows the setting to be modied or deleted.

The time setting can be modied now by

pressing button D or E and the operation can

be switched on or off by pressing the button F.

To delete a time set press the button D or E

until the symbols shown in Fig. 2.21 appears

in the time display G.

The new settings are memorised by pressing

the button A.

Manual operation

The operation of the time switch can be forced

on or off constantly or for a timed period.

To force constantly on or off the timer opera

-

tion press repeatedly the button A until the dis-

play shows the symbol TIMER.

The symbols

shown in Fig. 2.24 appears on the display.

Fig. 2.24

A

The operation can be switched permanently

on or off by pressing the button F and leaving

the display shows the symbol TIMER.

To force a timed delay on or off operation,

press repeatedly the button A until the display

shows the symbol TIMER.

Set the time delay by pressing the button D or

E and the operation can be forced on or off by

pressing the button F.

The time delay can be set within the following

ranges:

1 to 23 hours with steps of 1 hour

1 to 27 days with steps of 1 day.

Press the button A until the display shows the

symbol AUTO.

The ON-OFF display H ashes indicating that

the current state of operation has been forced.

To delete the timed delay setting, press re

-

peatedly the button A until

the display shows

the symbol TIMER, press the button D or E

until the symbols shown in Fig. 2.25 appears

in the display and then press the button A until

the display shows the symbol AUTO.

Setting example shown in Fig. 2.25:

forced ON state for 4 hours.

- 17 -

USE

INSTRUCTIONS FOR USE

Fig. 2.25

A

Note: If during manual operation, power sup-

ply turns off, timer must be set again following

previous steps.

Resetting

To

completely reset the timer, press the reset

button with a pointed object (pencil).

CAUTION: pushing the reset button will com

-

pletely erase the settings as well as all the

data, including the current time.

2.9 Built in time switch C

The combi boilers are equipped with a built in

electronic time switch (5, Fig. 1.3 on page 8)

which controls the C.H. operation.

Fig. 2.26

I

H

G

F E D C B

A

J

Display and control panel:

A Mode selector switch

B Reset button

C Enter button

D Increase “+” setting button

E Decrease “-” setting button

F On-off button

G Day selection buttons

H Day display

I Time display

J ON-OFF display

Setting the current time and weekday

Note: with a new unit or when the reset button

B has been pressed, the rst day indicator H

on the left and the time display I is ashing.

Set the mode selector switch A to the

posi-

tion and press the buttons D or

E until the cur-

rent time appears in the display I.

Press the

day selection button correspond-

ing to the current day, considering that button

1=Monday, button 2=T

uesday and so on.

The clock starts by moving the switch A to the

AUTO position.

Setting example shown in Fig. 2.27:

Current time 16.30, day Thursday.

Fig. 2.27

A

Setting the switching time and day (or

days)

20 memory locations are available, corre-

sponding to 10 on-off sequences.

Set

the

mode selector switch A to the C1 posi-

tion.

The symbols

shown in Fig. 2.28 appears in

the display.

Fig. 2.28

A

Press the buttons D or E to set the desired

ON time.

Press the buttons G to set the desired day or

days of operation.

- 18 -

USE

INSTRUCTIONS FOR USE

Press the “enter” button C to conrm the set-

ting and to continue programming the OFF

time.

Set the

OFF time as explained above for the

ON setting and conrm by pressing the “enter”

button C. Proceed in the same way for other

settings.

Setting example shown in Fig. 2.29:

K ON time 7.45, day Monday to Friday.

L OFF time 10.30, day Monday to Friday.

Fig. 2.29

K L

Activating the timed settings

Set the mode selector switch A to the AUTO

position shown in Fig. 2.16.

The current time and day appears in the dis

-

play. The ON-OFF display J indicates the cur-

rent state of operation (according to the set-

tings).

Fig. 2.30

A

Note: when the mode selector switch A is in

the AUTO position and the boiler is switched

off at the fused spur isolation switch, the dis-

play J indicates only the OFF state. The other

indications are blanked.

Reading the timed settings

Set

the

mode selector switch A to the C1 posi

-

tion. The symbols shown in Fig. 2.28 appears

in the display.

Press

the “enter” button C. Each time the but-

ton is pressed the display shows the details of

the next setting.

Changing or deleting the timed settings

Set

the

mode selector switch A to the C1 posi

-

tion. The symbols shown in Fig. 2.28 appears

in the display.

Press

the “enter” button C until the display

shows the setting to be modied or deleted.

The day display H gives a ashing indication

of the active day or group of days.

Press the button (or the buttons) G corre

-

sponding to the day (or days) for which it is

intended

to

apply the modication. The cor-

responding day display stops ashing and a

new switching time can be set or deleted.

The time

setting can be modied now by

pressing button D or E and the operation can

be switched on or off by pressing the button F.

To delete a time set press the button D or E

until the symbols shown in Fig. 2.28 appears

in the time display I.

The new settings are memorized by moving

the switch A to a different position.

Manual operation

The operation of the time switch can be forced

on or off constantly or for a timed period.

To force constantly on or off the timer opera

-

tion set the mode selector switch A to

the TIM-

ER position. The symbols shown in Fig. 2.31

appears on the display.

Fig. 2.31

The operation can be switched permanently

on or off by pressing the button F and leaving

the switch A in the TIMER position. To force a

timed delay on or off operation, set the mode

selector switch A in the TIMER position.

Set the time delay by pressing the button D or

E and the operation can be forced on or off by

pressing the button F.

- 19 -

USE

INSTRUCTIONS FOR USE

The time delay can be set within the following

ranges:

1 to 23 hours with steps of 1 hour

1 to 27 days with steps of 1 day

The time delay setting is activated by moving

the switch A to the AUTO position.

The ON-OFF display J ashes indicating that

the current state of operation has been forced.

To delete the timed delay setting, set the mode

selector switch A in the TIMER position, press

the button D or E until the symbols shown in

Fig. 2.31 appears in the display and then set

the mode selector switch A to the AUTO posi

-

tion.

Setting example shown Fig. 2.32:

forced ON state for 4 hours.

Fig. 2.32

Resetting

To completely reset the timer, press the reset

button with a pointed object (pencil).

CAUTION: pushing the reset button will com

-

pletely erase the settings as well as all the

data, including the current time and day.

2.10 Built in time switch D

The combi boilers are equipped with a built in

electronic time switch (5 on pag. 8) which

controls the C.H. operation.

Fig. 2.33

I

F E D C B

A

J

H

G

Display and control panel

A Mode selector switch

B Reset button

C OK button

D Increase “+” setting button

E Decrease "-” setting button

F On-off button

G Day selection buttons

H Day display

I Time display

J ON-OFF display

Setting the current time and weekday

Note: with a new unit or when the reset button

B has been pressed, the rst day indicator H

on the left and the time display I are ashing.

Press repeatedly the button A until the display

shows the symbol

.

Press the buttons D or E until the current time

appears in the display I.

Press the day selection button G correspond

-

ing to the current day, considering that button

1=Monday, button 2=T

uesday and so on.

The clock starts by pressing the button A to

show the symbol AUTO.

Setting example shown in Fig. 2.34:

Current time 16.30, day Thursday.

- 20 -

USE

INSTRUCTIONS FOR USE

Fig. 2.34

A

Setting the switching time and day (or

days)

28 memory locations are available, corre-

sponding to 14 on-off sequences.

Press

repeatedly

the button A until the display

shows the symbol C1.

The symbols shown in Fig. 2.35 appears in

the display.

Fig. 2.35

A

Press the buttons D or E to set the desired

ON time.

Press the buttons G to set the desired day or

days of operation.

Press the “OK” button C to conrm the setting

and to continue programming the OFF time.

Set the OFF time as explained above for the

ON setting and conrm by pressing the “OK”

button C. Proceed in the same way for other

settings.

Setting example shown in Fig. 2.36:

M ON time 7.45, day Monday to Friday.

N OFF time 10.30, day Monday to Friday.

Fig. 2.36

M N

Activating the timed settings

The current time and day appears in the dis-

play. The ON-OFF display J indicates the cur-

rent state of operation (according to the set-

tings).

Fig. 2.37

A

Note: when the display shows the symbol

AUTO and the boiler is switched off at the

fused spur isolation switch, the display J in-

dicates only the OFF state. The other indica-

tions are blanked.

Reading the timed settings

Press

repeatedly

the button A until the display

shows the symbol C1 (Fig. 2.35).

The symbols shown in Fig. 2.35 appears in

the display.

Press the “OK” button C. Each time the button

is pressed the display shows the details of the

next setting.

The day display H gives a ashing indication

of the active day or group of days.

Changing or deleting the timed settings

Press repeatedly the button A until the display

shows the symbol C1 Fig. 2.35).

The symbols shown in Fig. 2.35 appears in

the display.

Press the “OK” button C until the display

shows the setting to be modied or deleted.

The day display H gives a ashing indication

of the active day or group of days.

Press the button (or the buttons) G corre

-

sponding to the day (or days) for which it is

intended to

apply the modication. The cor-

responding day display stops ashing and a

new switching time can be set or deleted.

The time

setting can be modied now by

pressing button D or E and the operation can

be switched on or off by pressing the button F.

To delete a time set press the button D or E

until the symbols shown in Fig. 2.35 appears

in the time display I.

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Biasi Riva Plus HE Combi ERP 24kw and 28kw User manual

Biasi Riva Plus HE Combi ERP 24kw and 28kw User manual

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