Bosch ZBR16-3A User manual

Operating Instructions

Gas Condensing Boiler

Greenstar

6 720 613 303-00.1O

ZBR16/28/35/42-3A... | ZWB28/42-3A...

6 720 644 013 (2011/02) CA/US

2| General information

6 720 644 013 (2011/02)

General information

This manual is available in English and French.

Keep this manual for future use.

CAUTION:

BObserve the safety instructions of this manual

before putting the heating appliance into

operation.

General information | 3

6 720 644 013 (2011/02)

WARNING: If the information in this manual is not

followed exactly, a fire or explosion may result

causing property damage, personal injury or loss of

life.

BDo not store or use gasoline or other flammable

vapors and liquids in the vicinity of this or any

other appliance.

BWhat to do if you smell gas

–Do not try to light any appliance.

–Do not touch any electrical switch; do not use

any phone in your building.

–Immediately call your gas supplier from a

neighbor’s phone. Follow the gas supplier’s

instructions.

–If you cannot reach your gas supplier, call the

fire department.

BInstallation and service must be performed by a

trained and certified heating contractor, service

agency or the gas supplier.

4| Contents

6 720 644 013 (2011/02)

Contents

1 Guideline to symbols and safety instructions . . . . . . . . . 6

1.1 Guideline to symbols . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2 Information about the appliance . . . . . . . . . . . . . . . . . . . 11

2.1 Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.2 Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.3 Overview of boiler types . . . . . . . . . . . . . . . . . . . . . 12

3 Preparing the appliance for operation . . . . . . . . . . . . . . 13

3.1 Opening the control panel cover . . . . . . . . . . . . . . 13

3.2 Checking the boiler water pressure . . . . . . . . . . . . 14

3.3 Topping up the heating system water . . . . . . . . . . . 15

4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.1 Overview of controls . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2 Switching the appliance ON/OFF . . . . . . . . . . . . . . 20

4.3 Turning the space heating ON . . . . . . . . . . . . . . . . 21

4.4 Programming the heating control unit . . . . . . . . . . 23

4.5 ZBR..-3A appliances with DHW tank:

Setting the DHW temperature . . . . . . . . . . . . . . . . . 24

4.6 ZWB..-3A appliances (combi boilers):

Setting the DHW temperature . . . . . . . . . . . . . . . . . 27

4.7 Setting manual summer mode . . . . . . . . . . . . . . . . 29

4.8 Setting frost protection . . . . . . . . . . . . . . . . . . . . . 30

4.9 Activating the key pad lock . . . . . . . . . . . . . . . . . . . 32

4.10 Display codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Contents | 5

6 720 644 013 (2011/02)

5 Thermal disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6 Energy saving tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

9 Environmental responsibility/disposal . . . . . . . . . . . . . . 41

10 Quick reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

6| Guideline to symbols and safety instructions

6 720 644 013 (2011/02)

1 Guideline to symbols and safety

instructions

1.1 Guideline to symbols

Warnings

Signal words at the beginning of a warning are used to indicate the

type and seriousness of the ensuing risk if measures for

minimizing damage are not taken.

•NOTE indicates that damage to property may occur.

•CAUTION indicates possible minor to medium personal injury.

•WARNING indicates possible severe personal injury.

•DANGER indicates a potential for loss of life.

Warnings are indicated in the text by a warning

triangle and a gray background.

In case of danger from electric shock, the

exclamation point on the warning triangle is

replaced with a flash.

Guideline to symbols and safety instructions | 7

6 720 644 013 (2011/02)

Important Information

Additional symbols

Important information neither indicating personal

injury nor damage to property are marked with this

symbol. They are separated by lines above and

below the text.

Symbol Explanation

BSequence of steps

ÆCross-reference to other points in this docu-

ment or to other documents

•Listing/list entry

–Listing/list entry (2nd level)

Tab. 1

8| Guideline to symbols and safety instructions

6 720 644 013 (2011/02)

1.2 Safety instructions

If you smell gas

BTurn off the gas cock (Æpage 18).

BOpen windows and doors.

BDo not operate any electrical switches.

BExtinguish all open flames.

BFrom outside the building, call gas utility company and a

trained and certified heating contractor.

If you smell flue gas

BSwitch OFF the appliance (Æpage 20).

BOpen windows and doors.

BInform a trained and certified heating contractor.

For appliances operating on room air: Danger of flue gas

poisoning if supply of combustion air is insufficient

BSafeguard supply of combustion air.

BDo not cover or reduce the size of ventilation openings in

doors, windows and walls.

BSafeguard sufficient supply of combustion air also for

appliances installed at a later date, e.g. kitchen exhaust fans,

clothes dryers, and air conditioning units with vent to the

outside.

BNever operate the appliance if the supply of combustion air is

insufficient.

Guideline to symbols and safety instructions | 9

6 720 644 013 (2011/02)

Danger of explosion of flammable gases.

BOnly employ a trained and certified contractor to carry out

work on the gas train.

Risk of scalding

BIf running at DHW temperatures above 104 °F (40 °C) ask a

trained and certified heating contractor to install a tempering

valve to prevent scalding.

BWhen the thermal disinfection function is enabled, DHW

temperatures above 140 °F (60 °C) can occur.

Risk of damage due to operator error

Operator errors can result in personal injury and damage to

property.

BEnsure that children never operate this appliance unsupervised

or play with it.

BEnsure that only people who know to operate this appliance

correctly have access to it.

Installation, conversion

Only have the appliance installed or modified by a trained and

certified heating contractor.

Never modify any parts that carry flue gas.

Never close the outlet of safety valves. Water may be expelled

from any safety valve during heat-up.

10 | Guideline to symbols and safety instructions

6 720 644 013 (2011/02)

Inspection and maintenance

The operator is responsible for safety and environmental

compliance of the heating system.

Sign a maintenance and inspection contract with a trained and

certified contractor, covering an annual inspection and demand-

dependent maintenance. This guarantees high efficiency and

environmentally sound combustion.

Explosive and easily combustible materials

Never use or store easily combustible materials (paper, thinners,

paints, etc.) near the appliance.

Combustion air / room air

To prevent corrosion, keep the supply of combustion air /

room air free of corrosive substances (e.g. halogenated

hydrocarbons that contain chlorine or fluorine compounds).

Overheating of the appliance

Should overheating occur or the gas supply fail to shut off, do not

turn off or disconnect the electrical supply to the pump. Instead,

shut off the gas supply at a location outside of the appliance.

In case of water damage

Do not use this boiler if any part has been under water.

Immediately call a trained and certified service technician to

inspect the boiler and to replace any part of the control system

and any gas control which has been under water.

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