Buderus Logano plus GB312 Manual de usuario

Please read thoroughly before use

6304 3563 – 06/2005 GB For the user

Operating instructions

Gas fired condensing boiler

Logano plus GB312

Contents

2Operating instructions Logano plus GB312 gas-fired condensing boiler • Issue 06/2005

We reserve the right to make any changes due to technical modifications.

1 For your safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Notes regarding these instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Correct use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4 Please observe these notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4.1 If you smell gas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4.2 Tips on the boiler room. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1 Components on the Logano plus GB312 boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2 BC10 controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3 Operation of the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.1 Switching on the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.1.1 Starting the heating system via the control panel and programming unit . . . . . . . . . . . . 6

3.2 Switching off the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.3 Emergency measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.4 Checking the operating pressure, topping up with heating water and bleeding the system . . . 7

3.4.1 When should you check the operating pressure? . . . . . . . . . . . . . . . . . . . . . . . . 7

3.4.2 Checking the operating pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.4.3 Filling the heating system and checking for leaks . . . . . . . . . . . . . . . . . . . . . . . . 8

3.5 Why is regular maintenance important? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.1 Recognising and resetting faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Operating pressure

Use the following fuel only:

__________________________________

Design operating pressure

(optimum value): ______________ bar

Maximum heating system

operating pressure:

(standard = 3 bar) ______________ bar

Company stamp/date/signature

For your safety 1

We reserve the right to make any changes due to technical modifications.

Operating instructions Logano plus GB312 gas-fired condensing boiler • Issue 06/2005

1 For your safety

1.1 Notes regarding these instructions

These installation and maintenance instructions contain

important information for the safe and correct

installation, initial start-up and maintenance of this

boiler.

In the following, the Logano plus GB312 gas-fired

condensing boiler will generally be referred to as the

boiler.

1.2 Correct use

The boiler is designed for generating heating water and

DHW, for example, in homes or apartment buildings.

1.3 Key to symbols

The following symbols are used in this manual:

ÎCross-references

Cross-references to a specific point or another

document are identified by an arrow Î.

1.4 Please observe these notes

You will learn how to use your heating system by

–letting your installer instruct you when the system is

handed over and

–reading these operating instructions carefully.

Do not carry out any work on the boiler that is not

described in these operating instructions.

1.4.1 If you smell gas

WARNING!

RISK TO LIFE

Identifies possible risks, which may lead to

serious injury or death if appropriate care is

not taken.

CAUTION!

RISK OF INJURY/

SYSTEM DAMAGE

Identifies hazardous situations, which

could lead to medium or slight injuries or to

material losses.

USER NOTE

Tip for the optimum utilisation and setting

of the control(s) plus other useful

information.

WARNING!

RISK TO LIFE

by employing unqualified personnel.

zInstallation, commissioning and

maintenance must only be carried out

by a specialist installer. Work on

electrical and fuel-bearing components

in particular must only be carried out by

suitably qualified personnel.

WARNING!

RISK TO LIFE

through the explosion of volatile gases.

If you can smell gas, there is a risk of

explosion.

zExtinguish all naked flames. Do not

smoke. Do not use lighters.

zPrevent sparks.

Do not operate electrical switches,

including telephones, plugs or door-

bells.

zClose the main gas shut-off valve.

zOpen windows and doors.

zWarn all occupants, but do not use

doorbells or mobiles or other electrical

devices.

zLeave the building.

zCall your gas supplier and your installer

from outside the building.

zIf necessary, notify police or fire

services.

zIf you hear gas escaping, evacuate the

affected area immediately.

For your safety1

4Operating instructions Logano plus GB312 gas-fired condensing boiler • Issue 06/2005

We reserve the right to make any changes due to technical modifications.

1.4.2 Tips on the boiler room

WARNING!

RISK TO LIFE

from poisoning.

In open-flue operation, insufficient

ventilation can lead to dangerous flue gas

leaks.

zNever block off or obstruct air ducts and

vents or reduce their size.

zKeep the boiler room doors closed.

zProtect the boiler room and particularly

the combustion air inlet against ingress

of small animals, e.g. by the use of

grilles.

zIf an obstruction cannot be removed

immediately, the boiler must not be

operated.

WARNING!

RISK OF FIRE

from flammable materials or liquids.

zNever store flammable materials or

liquids in the boiler room.

Product description 2

We reserve the right to make any changes due to technical modifications.

Operating instructions Logano plus GB312 gas-fired condensing boiler • Issue 06/2005

2 Product description

2.1 Components on the Logano plus GB312 boiler

The boiler is a gas-fired condensing boiler with an

aluminium heat exchanger.

The boiler comprises:

–Control panel

–Frame and casing

–Boiler block with insulation

–Gas burner

The control panel monitors and controls all electrical

boiler components.

The boiler block transfers the heat generated by the

burner to the heating water. The insulation prevents

energy losses.

2.2 BC10 controls

Fig. 1 Logano plus GB312 boiler

1Control panel

2Gas burner

3Boiler front panel

4Siphon

5Boiler block with insulation

6Burner control unit

7Gas train

8Boiler casing

This product meets all the essential

requirements of the relevant

standards and directives.

USER NOTE

zFurther information about the controls

can be found in the ÎBC10 base

controller documentation.

Fig. 2 Controls on the BC10 base controller

Item 1: ON/OFF switch

Item 2: Dial for setting DHW temperature

Item 3: "DHW heating" LED

Item 4: Status display

Item 5: Dial for maximum boiler temperature when in heating

mode

Item 6: "DHW demand" LED

Item 7: Base plate with slot for a programming unit,

e.g. RC30 (behind fascia)

Item 8: "Burner" (ON/OFF) LED

Item 9: Diagnostic plug

Item 10: "Status display" button

Item 11: "Chimney sweep" button for flue gas test and

manual mode

Item 12: "Reset" button

12 1011

3 6

6Operating instructions Logano plus GB312 gas-fired condensing boiler • Issue 06/2005

We reserve the right to make any changes due to technical modifications.

Operation of the heating system3

3 Operation of the heating system

3.1 Switching on the heating system

Before switching the system on, check

–that the operating pressure is high enough,

–that the fuel supply at the main shut-off valve is open

and

–that the heating system emergency stop switch is

switched on.

3.1.1 Starting the heating system via the control

panel and programming unit

zSet both dials on the control panel to "AUT"

(automatic mode). In this setting, the programming

unit takes over control.

zSwitch the ON/OFF switch ON (position "1"). The

control panel checks the current system status and

the burner starts if required.

If the boiler detects a heat demand, the start program

commences and approx. 30 seconds later the burner

fires up. A heat demand is triggered if the heating or

DHW temperature falls below its set value. The LED

below the relevant dial illuminates.

zCheck and make sure the following settings on the

programming unit are set:

–Automatic operating mode

–Required room temperature

–Required DHW temperature

–Required heating program

Fig. 3 Setting the control panel

Fig. 4 Switching on the heating system

Fig. 5 Programming unit (e.g. RC30, with open flap)

USER NOTE

zOperating instructions, for example

how to set temperatures, can be found

in the Îprogramming unit

documentation.

Operation of the heating system 3

We reserve the right to make any changes due to technical modifications.

Operating instructions Logano plus GB312 gas-fired condensing boiler • Issue 06/2005

3.2 Switching off the heating system

zSwitch the ON/OFF switch on the control panel OFF

(position "0"). This switches the boiler and all its

components OFF (for example the burner).

zClose the main fuel shut-off valve.

3.3 Emergency measures

In the event of an emergency, e.g. a fire, proceed as

follows:

zClose the main fuel shut-off valve.

zIsolate the heating system from the mains power

supply using the heating system emergency stop

switch or the corresponding domestic fuse.

3.4 Checking the operating pressure, topping up with heating water and bleeding the

system

3.4.1 When should you check the operating

pressure?

Recently topped-up heating water loses much of its

volume in the first few days because it releases gases.

This causes air pockets, and the heating system will

start to rumble.

zAfter installing a new heating system, check the

operating pressure daily for the first few days. If

necessary top up with heating water and bleed the

radiators.

zAfter a while the operating pressure will only need to

be checked monthly. If necessary top up with heating

water and bleed the radiators.

CAUTION!

SYSTEM DAMAGE

through frost.

The heating system can freeze up in cold

weather if it has been switched off.

zLeave the heating system switched ON

for as long as possible.

zProtect your heating system against

freezing by draining the heating system

and DHW pipework at the lowest

possible point.

8Operating instructions Logano plus GB312 gas-fired condensing boiler • Issue 06/2005

We reserve the right to make any changes due to technical modifications.

Operation of the heating system3

3.4.2 Checking the operating pressure

The heating contractor will have set the red needle on

the pressure gauge to the required operating pressure

(at least 1 bar overpressure).

You can check the design operating pressure for this

heating system on Îpage 2.

zCheck that the pressure gauge needle is within the

green field.

zTop up with heating water if the pressure gauge

needle is below the green field.

3.4.3 Filling the heating system and checking for

leaks

Before commissioning the heating system, check for

leaks to prevent problems during operation. Pressurise

the heating system to 1.3x bar permissible operating

pressure (observe the safety pressure of the safety

valve).

On sealed systems the pressure gauge needle (Fig. 6,

item 2) must be within the green range (Fig. 6, item 3).

Set the red needle (Fig. 6, item 1) on the pressure

gauge to the required system pressure.

zCheck the system water pressure

zShut off the pressure expansion vessel from the

system by closing the cap valve.

zCheck the connections and pipework for leaks.

zOpen the mixing and shut-off valves on the hot water

(primary) side.

zFill the system via an approved filling link.

Filling the heating system

Filling and refilling of the heating circuit must been

carried out by a method that has been approved by the

Water Regulation Advisory Scheme (WRAS), for the

type of heating appliances, i.e. Domestic (in-house)

Fluid Category 3. Non-Domestic (other than in-house)

Fluid Category 4. Depending on the Fluid Category the

approved method should comprise of the following:

Fig. 6 Pressure gauge for sealed systems

1Red needle

2Pressure gauge needle

3Green field

CAUTION!

SYSTEM DAMAGE

through over pressure during leak testing.

Pressure, control and safety equipment

may be damaged through excessive

pressure.

zWhen you carry out a leak test, make

sure that no pressure, control or safety

equipment is fitted which cannot be

isolated from the boiler water chamber.

Operation of the heating system 3

We reserve the right to make any changes due to technical modifications.

Operating instructions Logano plus GB312 gas-fired condensing boiler • Issue 06/2005

1. Requirements Fluid Category 3 systems (fig see

right)

zControl valve (stop valve) including a double check

valve on the mains cold water supply pipe

zTemporary connection to e removed after filling

(filling loop)

zControl valve (stop valve) on the heating system

pipework

2. Requirements Fluid Category 4 systems (fig see

right)

zControl valve (stop valve) on the mains cold water

supply pipe

zStrainer

zVerifiable Backflow Prevention Device with reduced

pressure Zone(RPZ valve assembly) incorporating a

Type BA air gap

zTundish

zControl valve (stop valve) on the heating system

pipework

zOpen the cap of the automatic air vent by one full turn

to allow air to escape.

zSlowly fill the heating system. Observe the pressure

gauge whilst filling.

zClose the water tap and the boiler drain valve once

the required operating pressure has been reached.

zBleed the system via the radiator bleed valves.

zTop up with water if the pressure drops as a result of

bleeding the system.

zTake the hose off the boiler drain valve.

Fig. 7 Requirements Fluid Category 3 systems

Fig. 8 Requirements Fluid Category 4 systems

CAUTION!

SYSTEM DAMAGE

through frequent topping up.

The heating system may be damaged,

depending on water quality, by corrosion

or scaling if you frequently need to top-up

the heating water.

zEnquire from your installer, whether

you can use your public water

untreated or whether you need to treat

it before filling your system.

zNotify your installer, if you need to

regularly add top-up water to your

system.

10 Operating instructions Logano plus GB312 gas-fired condensing boiler • Issue 06/2005

We reserve the right to make any changes due to technical modifications.

Operation of the heating system3

Correct fuel

This heating system requires fuel of the correct type and

grade to ensure its proper operation.

Follow the advice of your installer if you want to convert

your heating system to another type of fuel or use fuel

with a different specification.

Boiler room

CAUTION!

SYSTEM DAMAGE

through incorrect fuel.

zOnly use the fuel specified.

CAUTION!

BOILER DAMAGE

through contaminated combustion air.

zNever use chlorinated cleaning agents

or halogenated hydrocarbons (as, for

example, contained in spray cans,

solvents or cleaning agents, paints and

adhesives).

zAvoid very dusty atmospheres.

CAUTION!

SYSTEM DAMAGE

through water.

zIn case of an acute risk of flooding,

disconnect the boiler from its power

supply and shut off the fuel supply

before water enters the boiler room

(ÎChapter 3.2, page 7).

zAfter the flood has subsided, ask your

local installer to check the heating

system before starting it up again.

zAsk your installer to replace any valves

and control/regulating equipment that

have come into contact with water.

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