REMEHA Avanta Plus 28c Manuel utilisateur

User guide

Remeha Avanta Plus

Remeha Avanta Plus 28c

Remeha Avanta Plus 39c

Remeha Avanta Plus 24s

Remeha Avanta Plus

INTRODUCTION

1 SAFETY 4

1.1 General safety 4

2 BOILER 5

2.1 Operation and components 5

2.2 Controls 6

2.2.1 Advanced boiler control (‘abc®’ -control) 6

3 OPERATING THE BOILER 6

3.1 Normal start-up procedure 7

3.2 Reading operating codes and settings 7

3.3 Changing settings 8

4 PROBLEMS WITH BOILER AND/OR CENTRAL HEATING SYSTEM 12

4.1 Error codes – errors which can be resolved by the user 12

4.2 Error codes – errors which have to be remedied by theinstaller 12

4.3 Other problems 13

5 TOPPING UP, BLEEDING AND DRAINING SYSTEM 14

5.1 Topping up the central heating system 14

5.2 Bleeding the central heating system 17

5.3 Draining the central heating system 19

6 DISABLING THE BOILER 21

7 ENABLING THE BOILER 22

8 TIPS FOR MAINTAINING THE BOILER AND CENTRAL HEATING SYSTEM 23

9 ENERGY SAVINGS AND ENVIRONMENTAL PROTECTION 25

9.1 Tips on saving energy 25

9.2 Room thermostats and settings 25

10 EXPANDING THE CENTRAL HEATING SYSTEM 26

11 TECHNICAL DATA 26

12 APPENDICES 27

12.1 Remeha factory test 27

12.2 EC regulations 27

INTRODUCTION

The Remeha Avanta Plus range are a series of fully condens-

ing high-efficiency central heating boilers, available in the fol-

lowing types:

• Remeha Avanta Plus 28c and 39c

- with integrated domestic hot water system (combi-type)

• Remeha Avanta Plus 24s

- without integrated domestic hot water system

(system-type)

The Avanta Plus series ensures optimum domestic hot water

heating and space heating in your home.

Apart from instructions on operation / maintenance and tips

on how to achieve lower energy consumption, this User Guide

contains information on options for operating the boiler with

various types of controls, for use with conventional or under

floor heating and in conjunction with solar panels.

LT.AL.W7H.000.021

This User Guide represents the documentation for the end

user.

• Apart from the documents for the end user, the following

are provided for the installer:

• Installation and Service Manual.



• Keep this User Guide with the boiler.

• Broag Ltd. will not be liable for any damage resulting from

the instructions in this User Guide not being followed.

• Broag provides a 2-year warranty on parts for the

Remeha Avanta Plus and a 10-year warranty on the heat

exchanger. Please ensure that your installer hands over

the completed Boiler Log Book and that the warranty card

returned to Broag to register the boiler. Also ensure that

the relevant sections are completed at each service visit.

The Log Book will be required in event of any warranty

work, therefore keep it in a safe place.

We continually seek to improve our products. The data pub-

lished in this User guide is based on the most recent informa-

tion and is issued subject to later modifications. We reserve

the right to modify the construction and/or finish of our prod-

ucts at any given time without any obligation to adapt earlier

supplies accordingly.

Please do not hesitate to contact us if you have any sugges-

tions to improve this documentation.

Broag Ltd, Head Office, Molly Millars Lane, Wokingham,

Berkshire RG41 2QP, telephone: 0118 9783434, Email:

[email protected]

Remeha Avanta Plus

1 SAFETY

This User Guide uses specific terms and pictograms to draw

particular attention to instructions. Broag does this to enhance

the user’s safety, to prevent problems and ensure the technical

reliability of the boiler.

1.1 General safety

The following pictograms are used in this Installation and User

manual to specifically draw certain points to your attention:

Tip  Useful tip or practical advice.

Indication  Important instruction in carrying out

a particular operation.

Warning  Possible danger of personal injury

or material damage to the regulator,

building or environment.

Danger  Serious personal injury can occur

because of risk of electric shocks.

 Can you smell gas? What to do:

• Do not smoke and do not create any flame or sparks.

• Do not use any electric switches.

• Turn off the main gas stop cock.

• Open windows and doors.

• Warn those present and leave the building together.

• Call your gas suppliers / installer once you are outside the

building, TRANSCO tel. 0800 111 999.

 Can you smell smoke or flue gases? What to do:

• Switch off the boiler.

• Open windows and doors.

• Warn those present and leave the building together.

• Call your installer once you are outside the building.

 Installation location for the boiler!

• Do not store or use any flammable materials, aggressive

substance and/or aerosols near the boiler.

• The installation area must be frost-free.

• The switched spur unit for the boiler must always be

accessible.

 Water and pipe temperatures!

• The factory setting for the tap water temperature is 55°C;

this temperature can be set to 65°C.

• The maximum water temperature in the Avanta Plus can

reach 90°C. This means that pipes and/or radiators can

reach this temperature.

• If the boiler is running, the flue duct can reach a high

temperature.

LTALW7H000202b

Service once a year

The boiler must be inspected once a year by a qualified engi-

neer to ensure optimum, safe operation.

 Repairs

Repairs to the Avanta Plus must only be carried out by a quali-

fied engineer and in accordance with the applicable regula-

tions and (safety) requirements.

2 BOILER

2.1 Operation and components

The Avanta Plus is a high-efficiency system or combi boiler for

domestic space heating and hot water production.

The combi boiler provides space heating and contains a plate

heat exchanger, three way diverting valve and additional com-

ponents to supply instant DHW direct from the boiler on a pri-

ority basis without the need for storage

The system boiler provides space heating and can be used in

conjunction with a cylinder/calorifier and other external controls

to provide DHW indirectly

Both models have helical stainless steel heat exchanger’s c/w

a premix burner ensuring high heat transfer efficiency with

flue gases being discharged via the concentric flue system.

Condensation which forms during the combustion process is

discharged via the siphon on the underside of the boiler.

An intelligent advanced boiler control unit (‘abc®’) provides all

the necessary safety and operational safeguards using internal

and external sensors etc to ensure that the boiler operates

reliably with maximum efficiency

LT.AL.W7H.000.202

1. Automatic air vent

2. Flue/ Air inlet connection

3. Flue gas measuring point

4. Heat exchanger

5. Front plate heat exchanger

6. Air inlet tube

7. Gas combination block

8. Two channel time clock (optional)

9. Control panel

10. Pressure gauge

11. Circulation pump

12. Expansion vessel

13. Ignition/ionization electrode

14. Stand off frame (optional)

Remeha Avanta Plus

LTALW7H000222a

2345

LTALW7H000203a

2.2 Controls

LT.AL.W7H.000.222

The Remeha Avanta Plus is a fully modulating boiler and can

be controlled using one or more of the following methods;

1. Open Therm – 2 wire interface compatible with

the Remeha Celcia 15 room compensator and the

Remeha Celcia 20 outside weather compensator or

with any other OpenTherm control.

2. Open Therm thermostat in combination with 230 V

time clock.

3. On/Off room thermostat – volt free (Celcia 10)

4. On/Off room thermostat – 230 V

5. 230 V Switching time clock - Internal 230 V Broag

option or any other external two channel 230 V

switching clock.

2.2.1 Advanced boiler control (‘abc®’ -control)

An intelligent advanced boiler control (‘abc®’) continuously

monitors the boiler conditions and ensures a very reliable sup-

ply of heat. In the event of problems with water and air flow,

the boiler will temporarily switch off (depending on the nature

of the circumstances), and then after a short while simply try

again.

3 OPERATING THE BOILER

The control panel of the Avanta Plus has 4 function keys and a

display. The function keys are used to read or change settings

and temperatures (see par.3.3; ‘Changing settings’).

LT.AL.W7H.000.203

1 Display

2 ‘Reset’-key

3 [-] key

4 [+] key

5 ‘Enter’ key

The display has two positions and displays information on the

current operating status of the boiler and any errors.

Numbers, dots and/or letters can appear in the display. The

symbols above the function keys indicate what the function of

that particular key then is. If no key is pressed for longer than

three minutes with the “boiler in stand-by mode”, only one

dot is lit. With the “boiler operating”, two dots are displayed.

• Press any key and the current boiler status and operation

code will appear in the display.

• In the event of a fault, the fault code is displayed instead

of the dots.

LTNLW6H000067A

LTNLW6H000066A

LTALW7H000046b

LT.NL.W6H.000.066

LT.NL.W6H.000.067

3.1 Normal start-up procedure

Activate the switch on the spur unit for mains supply; the boiler

will run the start-up program.

- A display test will briefly appear showing all segments

of the display.

f[ xx software version;

p[ xx parameter version;

- A venting cycle of 2 minutes now follows, the version

numbers will be displayed alternately;

- Next, the following will appear in the display;

[1 ; boiler is ventilating;

[2 ; boiler is igniting;

[4 ; boiler is operating for DHW;

[7 ; boiler pump is running after heating DHW;

[0 ; boiler is stand-by.

3.2 Reading operating codes and settings

Reading operating codes

The display can show the following operating codes if one of

the keys is pressed.

Operating status Display shows

consecutively

Hot water tap open (DHW demand) +1 +2 +4

Hot water tap closed (DHW satisfied) +1 +7 +0

Room thermostat set higher +1 +2 +3

Room thermostat set lower +4 +1 +7

(boiler already heating up)

Room thermostat set lower +1 +6 +0

(boiler not yet heating up)

Boiler checking water

temperature 8 (once water temperature has fallen

sufficiently, it auto matically starts

running again)

Boiler waiting time 5 (boiler will start again within 3 till

10 minutes)

Boiler temporarily

non-operational 9 (automatic restart attempt after 10

minutes)

Boiler stand-by 0 (boiler running normally)

Read out settings

The following settings can be read out in the ‘user menu’:

- t1 = flow temperature [°C];

- t2 = return temperature [°C];

- t3 = boiler temperature [°C];

- t4 = outside temperature [°C];

- fl = ionisation current [uA];

- ñf = fan speed [t/min] (rpm);

LT.AL.W7H.000.046

Proceed as follows to read the settings:

• Press the [+] key, until t1 appears and, for example,

68 (68°C), the current flow temperature;

• Press the [+] key again until t2 appears and, for exam

ple, 45 (45°C), the current return temperature;

• Press the [+] key again until t3 appears and, for exam-

ple, 50 (50°C), the current boiler temperature;

Remeha Avanta Plus

LTNLW6H000070A

• Press the [+] key again until t4 appears and, for exam-

ple, 18 (18°C), the current outside temperature;

• Press [+] key again until fl appears and e.g. ^0

(6uA), the present ionisation current;

• Press [+] key again until ñf appears and e.g. 30

(3000 rpm), the present fan speed;

• Press [+] key again and the read-out cycle will start again

with t1, etc.;

• Press ‘Reset’- key to return to the display with the cur

rent operating status.

3.3 Changing settings

The user can change the following settings:

p1 Maximum flow temperature (= water temperature that

leaves the boiler) [°C], adjustable between 20 and 85°C

(factory setting = 75°C)

p2 Maximum domestic hot water temperature [°C], adjust-

able between 40 and 65°C (factory setting = 55°C)

p3 Boiler regulation; central heating and domestic hot water

mode adjustable at four levels:

0 = central heating OFF and domestic hot water OFF

1 = central heating ON and domestic hot water ON

(= factory setting)

2 = central heating ON and domestic hot water OFF

3 = central heating OFF and domestic hot water ON

p4 Eco or comfort mode adjustable at 3 levels:

0 = comfort setting

1 = eco mode

2 = regulated by controller (= factory setting)

p5 Anticipated current for on/off thermostat (ask your ser-

vice engineer for further details)

0 = no anticipated current (= factory setting)

1 = anticipated current

p6 Display off automatically

0 = display stays off

1 = display stays on

2 = display switches off automatically after 3 minutes

(= factory setting)

Changing P1 setting: flow temperature of water in central

heating system

LT.NL.W6H.000.070

Reduce the flow temperature as follows:

• Press ‘Enter’- key until codes p [ and [ 1 are dis-

played alternately.

• Press ‘Enter’- key again; set value for maximum flow

temperature is displayed: 75°C (factory setting).

• Press [+] or [-] -key to change this value, for example to

70°C.

• Press ‘Enter’- key to confirm value; codes p [ and [

1 are displayed alternately.

• Press ‘Reset’- key to switch boiler to operating mode.

 Summer holidays

In summer a reduced flow temperature setting may be ade

quate for your heat requirement. Reduce the flow temperature

and save energy.

LTNLW6H000071A

LTNLW6H000072A

Changing P2 setting: domestic hot water temperature

LT.NL.W6H.000.071

Increase the domestic hot water temperature as follows:

• Press ‘Enter’- key until codes p [ and [ 1 are dis-

played alternately.

• Press ‘[+]- key until codes p [ and [ 2 are displayed

alternately.

• Press ‘Enter’- key; set value for domestic hot water tem-

perature is displayed: 55°C (= factory setting).

• Press [+] or [-]- key to change this value, for example to

65°C.

• Press ‘Enter’- key to confirm value; codes p [ and [

2 are displayed alternately.

• Press ‘Reset’- key to switch boiler to operating mode.

Changing P3 setting: boiler regulation (domestic hot water

and central heating mode)

 DHW use only

If the Remeha Avanta Plus is, for example, only being used to

provide domestic hot water, switch the boiler regulation system

for the central heating system off.

0 = CH off / DHW off

1 = CH on / DHW on (factory setting)

2 = CH on / DHW off

3 = CH off / DHW on

Change the boiler regulation as follows:

LT.NL.W6H.000.072

• Press ‘Enter’- key until codes p [ and [ 1 are dis-

played alternately.

• Press [+]- key 2x until codes p [ and [ 3 are dis-

played alternately.

• Press ‘Enter’-key: central heating and domestic hot

water mode setting is displayed.

• Press [-] or [+]- key to change this mode, e.g. level 3 (=

central heating OFF and domestic hot water ON).

• Press ‘Enter’- key to confirm this mode; codes p [ and

[ 3 are displayed alternately.

• Press ‘Reset’- key to switch boiler to operating mode.

Changing P4 setting: Eco or comfort mode

Tip: Comfort mode offers DHW on the combi boiler to be

maintained at a min temperature (the boiler will top up

the plate heat exchanger even when there is no DHW

demand) to ensure faster response. The Eco mode

disables this option therefore uses less energy.

 No hot water

Beware; the system boiler in combination with an external cal-

orifier will not warm up the calorifier in the Eco-mode.

So, if the calorifier is empty, the tap water will be cold.

Remeha Avanta Plus

LTNLW6H000073A

LTNLW6H000074A

 In the comfort mode the boiler will be seen to run

occasionally even if time clocks are in the off position.

0 = Comfort mode

1 = Eco mode

2 = regulated by controller (= factory setting)

Change the mode as follows:

LT.NL.W6H.000.073

• Press ‘Enter’- key until codes p [ and [ 1 are dis-

played alternately.

• Press [+]- key 3x until codes p [ and [ 4 are dis-

played alternately.

• Press ‘Enter’- key; setting of ‘eco or heat retention’ mode

is displayed (mode 2 = heat retention and regulator-

dependent, factory setting).

• Press [-]- key to change this mode, for example mode 1

(=eco mode).

• Press ‘Enter’- key to confirm this mode; codes p [ and

[ 4 are displayed alternately.

• Press ‘Reset’- key to switch boiler to operating mode.

Changing P5 setting: (no) anticipated current



Boiler responds to temperature changes after a certain time,

input via on/off thermostat. Response time can be reduced by

enabling ‘Anticipated current’ option (only when the on/off ther-

mostat has an anticipation current setting device). When the

boiler is installed this setting has been already been adjusted.

Ask your service engineer for further details.

Change the anticipated current (if necessary) setting as fol-

lows:

LT.NL.W6H.000.074

• Press ‘Enter’- key for 1 second until codes p [ and [

1 are displayed alternately.

• Press [+]- key 4x until codes p [ and [ 5 are dis-

played alternately.

• Press ‘Enter’- key; (no) anticipated current setting is dis-

played (mode 0 = no anticipated current, factory setting).

• Press [-]- key to change this mode, for example mode 1

(=anticipated current).

• Press ‘Enter’- key to confirm this mode; codes p [ and

[ 5 are displayed alternately.

• Press ‘Reset’- key to switch boiler to operating mode.

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