Bosch CONDENS 5000W Bedienungsanleitung

USER MANUAL

HYDRONIC GAS SYSTEM BOILER 18kW

CONDENS 5000 W

6720643356-00.1Wo

ZSB18 - 2A.

6 720 646 196 (2013/08)

6 720 646 196 (2013/08)Condens 5000 W

Contents | 2

Contents

1 Symbols and safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1 Operating the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.1.1 Switching off the central heating . . . . . . . . . . . . . . . . . . . 6

3.1.2 Boiler frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.1.3 Setting the hot water temperature . . . . . . . . . . . . . . . . . 7

3.1.4 Boiler reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4 System pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.1 Sealed heating systems . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.2 External filling loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5 Service clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

6 Maintaining the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

7 Fault finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

8 Fault or breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

9 Tips on energy saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

10 Environment / disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

11 Your guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

12 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6 720 646 196 (2013/08)Condens 5000 W

Preface | 3

Preface

Please read these instructions carefully

These instructions are applicable to the Bosch boiler model

stated on the front cover only.

These instructions apply in AU/NZ only and must be followed

except for any statutory obligation.

After installation please leave this user manual, the installation

instructions and completed installation checklist with the

customer.

Dedicated to heating comfort

Thank you for purchasing a Condens 5000 hydronic system

boiler manufactured by Bosch. The company prides itself on

manufacturing boilers to the strictest quality control standards

throughout every stage of production.

Bosch has led the field in innovative boiler design and

performance for almost 50 years. This heritage means all our

products are of exceptional quality and proven reliability.

The Condens 5000 in particular is extremely energy efficient,

offering you economical running costs and value for money.

reassurance of a two years parts and labour guarantee.

6 720 646 196 (2013/08) Condens 5000 W

4 | Symbols and safety precautions

1 Symbols and safety precautions

1.1 Explanation of symbols

Warning symbols

Signal words indicate the seriousness of the hazard in terms of

the consequences of not following the safety instructions.

•NOTICE indicates possible damage to property or

equipment, but where there is no risk of personal injury.

•CAUTION indicates possible personal injury.

•WARNING indicates possible severe personal injury.

•DANGER indicates possible risk to life.

Important information

Additional symbols

1.2 Safety precautions

If you smell gas:

▶LPG boilers call the suppliers number on the side of the

LPG tank/cylinder

▶Turn off the ECV (emergency control valve) at the meter

▶Do not turn any electrical switches on or off

▶Do not strike matches or smoke

▶Putoutnakedflames

▶ Open doors and windows

▶ Keep people away from the affected area

Boiler operation:

This boiler must only be operated by a responsible adult who

has been instructed in, understands and is aware of the boiler's

operating conditions and effects.

Combustible and corrosive materials:

Chemically aggressive substances can corrode the boiler and

invalidate any warranty.

▶ Do not store or use any combustible materials (paper,

thinners, paints etc.) inside or within the vicinity of the

boiler.

Fittings and modifications:

Only an authorised person can remove the outer case and carry

out any work.

▶ Do not remove the outer casing.

Any misuse or unauthorised modifications to the boiler, flue or

associated components and system will invalidate the

warranty.

▶ Do not modify the boiler or flue system in any way.

Bosch accepts no liability arising from any such actions. This

does not affect your statutory rights.

Safety instructions in this document are

framed and identified by a

warning triangle which is printed on a grey

background.

Electrical hazards are identified by a

lightning symbol surrounded by a warning

triangle.

Notes contain important information in

cases where there is no risk of

personal injury or material losses and are

identified by the symbol shown on the left.

They are bordered by horizontal lines above

and below the text.

Symbol Meaning

▶ a step in an action sequence

a reference to a related part in the

document or to other related documents

• a list entry

– a list entry (second level)

Table 1 Symbols

6 720 646 196 (2013/08)Condens 5000 W

General information | 5

2 General information

Servicing

▶ The boiler must be serviced annually by an authorised person.

▶ Always use original spares, to help maintain the economy, safety and reliability of the boiler and have the service record

completed in the service checklist.

The completed service checklist will be required in the event of any warranty work.

3Controls

▶ To gain access to the boiler controls open the flap and release.

Fig. 1 Control panel fascia

Ensure that the service engineer completes the service checklist after each service. The service checklist and

service interval record can be found at the rear of the installation instructions.

12345678

6720643356-13.1Wo

Boiler

Controls

1Central heating temperature control 6 ECO button (non functional)

2Burner indicator (green) 7 Reset button

3Service button 8 Hot water temperature control*

4Cover or optional programmer 9 System pressure gauge

5Power ON and fault indicator (blue) * Requires optional integral diverter kit to be

functional

Table 2

6 720 646 196 (2013/08) Condens 5000 W

6 | Controls

3.1 Operating the boiler

Setting the central heating temperature

1. Turn the central heating temperature control knob to the desired level.

1. The Burner indicator (green) will illuminate to show that the boiler is running.

Fig. 2 Central heating temperature control

3.1.1 Switching off the central heating

1. Turn the temperature control knob to the snowflake symbol to switch off the central heating.

Fig. 3 Switch off central heating

The temperatures quoted in the figure below are only approximate.

Min

Max

---

40 °C

47 °C

53 °C

61 °C

68 °C

74 °C

80 °C

82 °C

max

6720643356-05.1Wo

max

reset

eco

maxmin

6720643356-06.1Wo

6 720 646 196 (2013/08)Condens 5000 W

Controls | 7

3.1.2 Boiler frost protection

If the temperature within the boiler falls below 8°C the pump will run to circulate water and prevent the system freezing.If the

temperature within the boiler falls below 5°C the boiler will fire periodically, bringing the boiler temperature up to 12°C to avoid the

possibility of the system freezing.This process will be repeated until such time that the boiler temperature does not drop below 5°C.

3.1.3 Setting the hot water temperature

1. Turn the hot water temperature control knob to the desired level.

2. The ECO button is non operational with this type of boiler.

Fig. 4 Hot water temperature

Optional integral diverter valve kit with cylinder temperature sensor is required to be able to set the hot water

temperature.

Otherwise the temperature is factory set to approximately 55°C.

max

reset

eco

maxmin

6720644864-01.1Wo

6 720 646 196 (2013/08) Condens 5000 W

8 | Controls

3.1.4 Boiler reset

In the event of a fault, the reset button will flash once per second and the blue mains indicator light will flash.

1. To reset the boiler press the reset button for approximately five seconds.

When the boiler resets the reset button will no longer be illuminated.

2. The mains indicator will no longer be flashing.

Fig. 5 Reset button and mains light

If the fault remains and cannot be cleared by pressing the reset button, contact Robert Bosch for assistance on:

1300 30 70 37

max

reset

eco

maxmin

6720643356-09.1Wo

6 720 646 196 (2013/08)Condens 5000 W

System pressure | 9

4 System pressure

4.1 Sealed heating systems

This boiler is fitted to a sealed heating system which is pre-pressurised. The optimum pressure is indicated on the pressure gauge

shown in figure 6.

▶ Check regularly that the pressure is maintained.

Fig. 6 Optimum pressure when cold (area A)

▶ Contact your installer or authorised person if a permanent significant decrease in pressure is indicated on the pressure gauge.

The filling method on this boiler will be an external filling loop, with fitted valves and a flexible hose. The filling loop should ideally be

located close enough to the boiler so that the pressure gauge can be monitored during filling.

6720643356-11.1Wo

bar

Min

1 bar

1.5 bar

Max

6 720 646 196 (2013/08) Condens 5000 W

10 | System pressure

4.2 External filling loop

Once the external filling loop has been located, follow the instructions for re-pressurising the system.

1. Unscrew blanking cap.

2. Attach the hose to the valves, screw on hand-tight.

3. Turn the handle/screwdriver slot through 90° to open the valves.

4. The handle/screwdriver slot will be in-line with the valves

Fig. 7 External filling loop

5. When the pressure reaches between the 1 and 1.5 bar marks (zone A), turn the handle/screwdriver slot back, through 90°, to

close the valve.

6. The handle/screwdriver slot will be at 90° to the valves

7. Remove the hose and replace the blanking caps.

External filling loop valve must be installed according to local authorities regulations to protect the potable water

supply.

6720643356-12.2Wo

1. 2.

3. 3.

4.4.

6.6.

bar

Min

1 bar

1.5 bar

Max

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