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Bosch
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KBR16
Operating Instructions
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Bosch KBR16 Operating Instructions

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Residential Gas Condensing Boiler
6720810590-00.2Wo
Greenstar FS/Combi FS
KBR16/21/28/35/42-3A... | KWB 28/35/42-3A...
Operating Instructions
6720810589 (2015/05) CA/US
2 | Contents

Contents

1 Key to symbols and safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Information about the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Overview of boiler types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Preparing the appliance for operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Checking the system water pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Topping up the heating system water . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Overview of controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2 Switching the appliance ON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.3 Turning the space heating ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.4 Programming the heating control unit . . . . . . . . . . . . . . . . . . . . . . . . 13
4.5 KBR..-3A appliances with DHW tank: Setting the DHW temperature 13
4.6 KWB..-3A appliances (combi): Setting the DHW temperature . . . . 15
4.7 Setting manual summer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.8 Setting frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.9 Activating the key pad lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.10 Display codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5 Thermal disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6 Energy saving tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
8 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9 Environmental responsibility/disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
10 Quick reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Key to symbols and safety instructions | 3

1 Key to symbols and safety instructions

1.1 Key to symbols

Warnings

Warnings in this document are identified by a warning triangle printed against a grey background. Keywords at the start of a warning indicate the type and seriousness of the ensuing risk if measures to prevent the risk are not taken.
Keywords at the start of a warning indicate the type and seriousness of the ensuing risk if measures to prevent the risk are not taken. The following keywor ds are defined and can be used in this document:
• DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
• WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
• CAUTION indicates a hazardous situation which, if not avoided, could result in minor to moderate injury.
NOTICE: Contains no warning triangle and indicates a situation that could result in damage to property or equipment, but no personal injury.

Important information

This symbol indicates important information where there is no risk to people or property. Important information for the proper use of the boiler is also provided in this manual. You will find the information with a symbol shown on the left and bordered by horizontal lines above and below the text.
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4 | Key to symbols and safety instructions

Additional symbols

Symbol Explanation
▶ Sequence of steps Cross-reference to other points in this document or to other documents
• Listing/list entry – Listing/list entry (2nd level)
Table 1

1.2 Safety instructions

General information
This manual is available in English and French.
▶ Keep this manual for future use. ▶ Observe the safety instructions of this manual before putting the heating
appliance into operation.
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.
▶ Do not store or use gasoline or other flammable vapors and liquids in the vicinity
of this or any other appliance.
▶ What 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.
▶ Installation and service must be performed by a trained and certified heating
contractor, service agency or the gas supplier.
Key to symbols and safety instructions | 5
If you smell gas
▶ Turn off the gas cock ( page 11). ▶ Open windows and doors. ▶ Do not operate any electrical switches. ▶ Extinguish all open flames. ▶ From outside the building, call gas utility company and a trained and certified
heating contractor.
If you smell flue gas
▶ Switch OFF the appliance ( page 12). ▶ Open windows and doors. ▶ Inform a trained and certified heating contractor.
For appliances operating on room air: Danger of flue gas poisoning if supply of combustion air is insufficient
▶ Safeguard the supply of the combustion air. ▶ Do not cover or reduce the size of ventilation openings in doors, windows and
walls.
▶ Ensure that a sufficient supply of combustion air is also available for appliances
installed at a later date, e.g. kitchen exhaust fans, clothes dryers, and air conditioning units with a vent to the outside.
▶ Never operate the appliance if the supply of combustion air is insufficient.
Danger of explosion of flammable gases.
▶ Only employ a trained and certified contractor to carry out work on the gas train.
Risk of scalding
▶ If running at DHW temperatures above 104 °F (40 °C) ask a trained and certified
heating contractor to install a tempering valve to prevent scalding.
▶When 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.
▶ Ensure that children never play with or operate this appliance unsupervised. ▶ Ensure that only people who know how to operate this appliance correctly have
access to it.
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6 | Key to symbols and safety instructions
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 block the outlet of safety valves. Water may be expelled from any safety valve during heat-up.
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 from corrosive substances (e.g. halogenated hydrocarbons that contain chlorine or fluorine compounds).
Overheating of the appliance
Should overheating occur or the gas supply fails 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.
Information about the appliance | 7

2 Information about the appliance

2.1 Certifications

This product has been tested and certified for the US and the Canadian market and complies with all applicable standards required for the US and the Canadian market.

2.2 Proper use

The appliance may only be installed in closed loop hot water central heating system s. Any other purpose is considered improper use. Any resulting damage is excluded from the manufacturer's warranty. The commercial and industrial use of the appliance for generating process heat is not permitted.
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8 | Preparing the appliance for operation

2.3 Overview of boiler types

Table 2 describes the meaning of the model number:
KBR16-3 Heat only appliance A23 KBR21-3 Heat only appliance A23 KBR28-3 Heat only appliance A23 KBR35-3 Heat only appliance A23 KBR42-3 Heat only appliance A23 KWB28-3 Combi appliance A23 KWB35-3 Combi appliance A23 KWB42-3 Combi appliance A23
Table 2 Appliance types
K Floor standing heating appliance WDHW heating BCondensing technology R Con stant temperature control (modulating pump) 42 16...42 reference to output in kW.
42kW output equals 143 310BTU/hr
-3 Version A Fan-supported appliance 23 Natural gas (NG)

3 Preparing the appliance for operation

▶ If existing, open the heating supply valve and the heating return valve. ▶ If existing, open the cold water valve and the DHW valve. ▶ When using KBR..-3A appliances with DHW tank, open a DHW tap until water runs
out. ▶ Open the gas cock. ▶ Open the con trol panel cover.
Preparing the appliance for operation | 9
6720810589-01.1Wo
1
0
2
3
4
bar
psi
15
30
45

3.1 Checking the system water pressure

The standard system water pressure is 14.5 - 21.75 psi (1 - 1.5 bar).
Should a higher system water pressure be required, refer to a trained and certified heating contractor.
Fig. 1 Pressure gauge

3.2 Topping up the heating system water

Topping up the heating system water is different on every system. Therefore, you should ask a trained and certified heating contractor to show you how it is done.
Maximum pressure of 30 psi (2.07 bar) at maximum heating water temperature must not be exceeded (safety valve will spill).
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10 | Operation

4Operation

These operating instructions apply only to the boiler. Depending on the heating control unit used, some functions may vary. The following options for controlling the heating system are available:
• Weather compensating control unit (page 14, Fig. 5) installed in the boiler
(page 11, [19])
• Weather compensating control unit mounted on the wall
• Room thermostat
• Weather compensating control with room influence (room thermostat)
• Third party system control unit
Therefore, please read the operating instructions for the heating control unit used.
Page 27 contains a quick reference.

4.1 Overview of controls

6720810589-03.1Wo
1
2
3
4 5
6
7
8
9
12
10
11
Fig. 2 Control panel
[1] Emission test button for contractors (see installation instructions) [2] Service button for contractors (see installation instructions) [3] Burner operation indicator lamp [4] ON/OFF switch [5] Key pad lock [6] ECO button [7] Reset button [8] Display [9] System water pressure gauge [10] DHW temperature control [11] Blank panel for optional programmer [12] Heating temperature control
Operation | 11
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12 | Operation
m
a
x
1
2
3
4
5
6

4.2 Switching the appliance ON/OFF

Startup
▶ Switch the appliance ON using the ON/OFF switch.
The display shows the supply temperature of the hot water in °F. If necessary,
convert to °C (à Service function 0.E: Metric or US customary units).
Fig. 3
If the display shows in alternation with the supply temperature, the trap filling function is active.
Shutdown
▶ Switch the appliance OFF using the ON/OFF switch.
The display goes out. ▶ If the appliance is taken out of service for a longer period : Observe frost
protection ( Section 4.8).

4.3 Turning the space heating ON

The maximum supply temperature can be s et fr om 9 5 °F (35 ° C) u p to a ppr oxim ate ly 194 °F (90 °C). The current supply temperature is shown on the display.
With radiant floor heating, limit the maximum permissible supply temperature as recommended by the manufacturer.
Operation | 13
eco
reset
6 720 641 933-53.1O
max
1
2
3
4
5
6
max
1
2
3
4
e
6
min
▶ Adjusting the supply temperature with the heating temperature control :
– Radiant floor heating: e.g. setting 3 (approx. 122 °F (50 °C)) – Panel or cast iron radiator heating: setting 6 (approx. 167 °F (75 °C)) – Heating with supply temperatures up to 194 °F (90 °C): setting max
Fig. 4
The burner ON indicator lamp lights up if the burner is operating.
Boiler temperature control
Typical supply temperatures
Sample application
1approx. 95°F (35°C)Frost protection 2 approx. 109 °F (43 °C) 3 approx. 122 °F (50 °C) Radiant floor heating system 4 approx. 140 °F (60 °C) 5 approx. 153 °F (67 °C) 6 approx. 167 °F (75 °C) Radiator heating system max approx. 194 °F (90 °C) Convector heating
Table 3 Typical supply temperatures
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14 | Operation
9
12
h
15
18
21
24
h
3
6
6 720 612 660-07.2O
4.4 Programming the FW200 heating control unit (optional
accessory)
Observe the operating instructions for the heating control unit included in the scope of delivery. There you can read how to: ▶ set the operating mode and the heating curve for weather
compensating controls ▶ adjust the room temperature ▶ heat economically and save energy
Fig. 5

4.5 KBR..-3A appliances with DHW tank: Setting the DHW temperature

DANGER: Risk of scalding!
▶ In normal operation, it is recommended to limit the DHW
temperature to 122 °F (50 °C) to limit the risk of scalding.
▶ Only set temperatures up to 158 °F (70 °C) for thermal
disinfection ( page 20).
▶ Set the DH W temperature on the DHW thermostat .
6 720 641 933-54.1O
max
1
2
34
5
6
reset
eco
max
1
2
3
4
e
6
The set DHW temperature flashes on the display for 30 seconds.
Fig. 6
If there is reason for concern for contamination from bacteria such as Legionella, consider setting the DHW thermostat to at least “e” (131 °F (55 °C)). This setting ensures an economical and comfortable DHW generation. Consult your local water department or municipality for further information.
DHW thermostat Typical DHW temperatures
min approx. 59 °F (15 °C) e approx. 131 °F (55 °C) max approx. 158 °F (70 °C)
Table 4
Operation | 15
Always set the DHW temperature as low as possible. A lower setting on the thermostat means a higher rate of energy savings. Furthermore, higher DHW temperatures result in inc reased limescale deposits and thereby may impair the function of the appliance (e.g. longer times for heating up or lower output).
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16 | Operation
ECO button
Pressing and holding the ECO button until it lights up switches from Comfort mode to Economy mode.
• Comfort mode, ECO button is not lit (default setting)
In Comfort mode, the DHW tank has priority. The DHW tank is heated to the set temperature first. Then the appliance switches to central heating mode.
• Economy mode, ECO button lit
In Economy mode, the appliance alternates between central heating mode and DHW mode.

4.6 KWB..-3A appliances (combi boilers): Setting the DHW temperature

▶ Set the DHW temperature on the DHW temperature control .
The set DHW temperature flashes on the display for 30 seconds.
reset
eco
2
1
34
5
6
max
4
3
2
e
1
6
max
6 720 641 933-55.1O
Fig. 7
DHW temperature control Typical DHW temperatures
min approx. 104°F (40°C) e approx. 122°F (50°C) max approx. 140°F (60°C)
Table 5
Operation | 17
ECO button
When the ECO button is unlit, the appliance is in Comfort mode. Pressing and holding the ECO button until it lights up switches from Comfort mode to Economy mode.
• Comfort mode (default setting) The appliance is continually maintained at the set temperature. Consequently, DHW draws are immediate, however the appliance may run even if no DHW is being drawn.
• Economy mode, ECO button lights up – DHW is only generated when DHW is drawn. – On demand: Quickly open and close a DHW tap to signal the appliance to heat
to the selected temperature. After a short wait DHW will be available.
The DHW on demand signal allows maximum gas and water savings.

4.7 Setting manual summer mode

In summer mode or warm weather shut down (WWSD), the heating zone pump and consequently central heating are switched off. DHW generation remains active following the DHW program.
NOTICE: Heating system at risk of freezing. In manual summer mode, only the appliance is protected from freezing.
▶ Observe frost protection measures where there is a risk of
freezing (page 18).
▶ Make a note of the setting of the Heating temperature control .
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18 | Operation
▶ Turn the heating temperature control counterclockwise to .
reset
eco
4
3
5
2
1
6
max
3
e
2
6
1
maxmin
6 720 641 933-82.1O
Fig. 8
For further information, see the operating instructions for the heating control unit included in the scope of delivery.

4.8 Setting frost protection

Frost protection of the heating system:
▶ Leave the appliance switched ON; turn the heating temperature control at
least to position 1.
reset
eco
4
3
5
2
1
6
max
Fig. 9
For further information, see the operating instructions for the heating control unit included in the scope of delivery.
Alternatively if you prefer switching the appliance OFF: ▶ Ask a trained and certified heating contractor to mix anti-freeze (see installation
instructions) into the heating water. All DHW pipes and DHW tank must be completely drained.
3
e
2
6
1
max
min
6 720 641 933-68.1O
Operation | 19
max
1
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34
5
6
max
1
2
3
4
e
6
eco
reset
6 720 641 933-83.1O
min
Frost protection of the DHW tank:
▶ Turn the DHW thermostat counterclockwise to min (59 °F (15 °C)).
reset
eco
2
1
34
5
6
max
3
e
2
1
min
6
max
6 720 641 933-69.1O
Fig. 10

4.9 Activating the key pad lock

The key pad lock affects the supply temperature dial, the DHW thermostat, the service button and the ECO button.
Activating the key pad lock:
▶ Press the key pad lock button until and the heating supply temperature are
alternating on the display.
Fig. 11
Unlocking the key pad:
▶ Press the key pad lock button until the display shows only the supply
temperature.
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20 | Thermal disinfection

4.10 Display codes

Display Description
Fault-Code ( chapter 7)
Inspection due
Pump anti-seize function active
Key pad lock active
Condensate trap filling function active
Venting function active
Excessively rapid increase in supply temperature (temp. gradient monitoring). Heating mode is disabled for two minutes. If this message appears repeatedly, inform a trained and certified heating contractor.
Drying function. If the slab drying function is activated on the weather compensating control unit, refer to the operating instructions for the heating control unit included in the scope of delivery.
Table 6

5Thermal disinfection

When using KBR..-3A appliances with DHW tank it may be necessary to disinfect the DHW tank and DHW system after long idle periods to prevent bacterial contamination, for example from Legionella bacteria. This step is typically not necessary if the potable water is chlorinated or ozonated.
Thermal disinfection | 21
6 720 614 156-16.1O
max
1
2
34
5
6
reset
eco
max
1
2
3
4
e
6
Thermal disinfection can also be carried out automatically and on a regular basis; see operating instructions for the heating control unit included in the scope of delivery.
Thermal disinfection covers the DHW system including the taps. For solar DHW tanks, the solar portion of the tank is not covered.
DANGER: Risk of scalding! Hot water can result in severe scalding.
▶ Carry out thermal disinfection only outside the normal hours of use. ▶ The water in the tank will take a while to cool down to the set DHW
temperature as a result of heat loss. Be aware that, after thermal disinfection, the DHW may be hotter than the set temperature.
▶ If the thermal disinfection feature is activated have a DHW blending
valve installed.

Performing a manual disinfection of the DHW tank and system

▶ Close all DHW taps. ▶ Advise occupants of the risk of scalding if no tempering valve is installed. ▶ Set the time and DHW temperature accordingly on the heating control with DHW
program.
▶ Set any DHW recirculation pump to continuous operation. ▶ Turn DHW thermostat clockwise to max (approx. 158 °F (70 °C)).
Fig. 12
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22 | Energy saving tips
▶ Wait until the maximum temperature has been reached. ▶ Open all DHW taps, from the nearest to the one furthest away, and draw off hot
water until it reaches a minimum of 158 °F (70 °C) at all taps for at least 3 minutes.
▶ Reset the DHW thermostat, DHW recirculation pump, and heating control unit to
standard operation.
To cancel the thermal disinfection: ▶ Switch the appliance OFF and ON again.
The appliance starts up again and the current supply temperature is displayed.

6 Energy saving tips

Heating economically

The boiler is designed to provide a high level of comfort while keeping gas consumption and the resulting environmental impact as low as possible. The gas supply to the burner is controlled according to the heat demand. The boiler continues to operate on low fire if the demand for heat drops. The technical term for this process is modulating control, and it reduces temperature fluctuations and provides even distribution of heat throughout the home. This means that the boiler may stay on for relatively long periods but will use less gas than an appliance that continually cycles on and off.

Inspection/Maintenance

To ensure that gas consumption and environmental impact (pollution, etc.) remain as low as possible over an extended period of time, we recommend that you sign an inspection/maintenance contract with a trained and certified heating contractor covering scheduled annual service and maintenance.
Energy saving tips | 23

Heating control unit

Use a heating control unit with room temperature influence or a weather compensating control unit and thermostatic valves.
For further information, see the operating instructions fo r the heating control unit included in the scope of delivery.

Thermostatic valves

Fully open the thermostatic valves to ensure that the desired room temperature is reached in all cases. Allow several days for the system to stabilize after every adjustment and only change the setting for the heating curve or the room temperature on the control unit after the system had stabilized on the previous settings.

Radiant floor heating

Do not set the supply temperature higher than the maximum level recommended by the manufacturer.

Room venting

Do not keep windows cracked for ventilation purposes as it continuously cools down the room without significantly improving the air quality in the room. It is better to vent fully for a short time (with completely open windows).
Turn off the thermostats (if installed) in the room when venting.

Domestic hot water (DHW)

Always set the DHW temperature as low as possible. A lower setting on the thermostat means a higher rate of energy savings. Furthermore, higher DHW temperatures result in increased limescale deposits and thereby may impair the function of the appliance (e.g. longer heating-up times or lower output).

Recirculation pump

If there is a DHW recirculation pump installed, use a timer program to control its operation according to the specific requirements (e.g. morning, afternoon, evening).
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24 | Troubleshooting

7Troubleshooting

The Heatronic boiler control monitors all safety and control components.
If a fault arises during operation, an audible warning tone sounds.
Press a button to mute the warning sound.
The display indicates a fault code (e.g. ) and the reset button may also be flashing.
If the reset button is flashing:
▶ Press the reset button and hold it until appears on the display.
The appliance starts up again and the current supply temperature is displayed.
If the reset button is not flashing:
▶ Switch the appliance OFF and ON again.
The appliance starts up again and the current supply temperature is displayed.
If the fault persists: ▶ Contact a trained and certified heating contractor for assistance, providing
details of the fault code and the appliance type and serial number.
An overview of the display codes can be found on page 20 .
Maintenance | 25

Appliance details

If you need to call a trained and certified heating contractor, you may be asked for details on your appliance. Those details can be found on the rating plate.
Greenstar (e. g. KBR 28-3 A ...):
........................................................................................................
Serial number:
........................................................................................................
Date commissioned:
........................................................................................................
System installed by:
........................................................................................................

8Maintenance

Inspection and maintenance

The operator is responsible for the safety and environmental compatibility of the heating system (see local regulations).
It is therefore recommended to sign a maintenance and inspection contract with a trained and certified heating contractor that provides annual inspection and maintenance. This ensures high efficiency and environmentally compatible combustion.

Cleaning the outside of the boiler and the control unit

Wipe down with a damp cloth. Do not use any abrasive or corrosive cleaning agents.
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26 | Environmental responsibility/disposal

9 Environmental responsibility/disposal

Environmental responsibility is one of the fundamental company policies of the Bosch Group.
We regard quality of performance, economy and environmental responsibility as equal objectives.
We adhere strictly to environmental protection laws and regulations. We use the best possible technology and materials taking into account economic points of view, to protect the environment.

Packaging

For packaging, we participate in the country-specific recycling systems, which guarantee optimal recycling. All packaging materials used are environmentally-friendly and recyclable.

Old appliances

Old appliances contain materials that should be recycled. The components are easy to separate and the plastics are marked. This allows the various components to be sorted for appropriate recycling or disposal.

10 Quick reference

eco
reset
6 720 641 933-53.1O
max
1
2
3
4
5
6
max
1
2
3
4
e
6
min
6 720 641 933-55.1O
max
1
2
34
5
6
reset
eco
max
1
2
3
4
e
6
max
1
2
34
5
6
max
1
2
3
4
e
6
eco
reset
6 720 641 933-83.1O
min
eco
reset
max
1
2
3
5
6
max
1
2
3
4
e
6
6 720 641 933-68.1O
min

Startup

Start up DHW temperature
DANGER: Risk of scalding!
▶ In normal operation, it is
recommended to limit the
4
3
5
2
1
6
m
a
x
Turning space heating ON
6 720 613 896-05.1O
DHW temperature to 122 °F (50 °C) to limit the risk of scalding
Quick reference | 27
Heating control
Set the weather compensating control unit to the relevant heating curve and operating mode or set room thermostat to the desired temperature.
Key pad lock Frost protection
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ECO button lit – Economy mode. ECO button not lit – Comfort mode.
Greenstar FS
28 | Index

Index

C
Certifications . . . . . . . . . . . . . . . 6
Cleaning the outer casing . . . . . . 24
Commissioning . . . . . . . . . . . . . . 7
D
Details about the appliance
proper use . . . . . . . . . . . . . .6
Type overview . . . . . . . . . . .7
DHW temperature . . . . . . . . . 13, 15
Disinfection . . . . . . . . . . . . . . . . . 19
Disposal . . . . . . . . . . . . . . . . . . . . 25
E
ECO button . . . . . . . . . . . . . . 15, 16
Energy saving tips . . . . . . . . . . . . 21
Environmental responsibility . . . 25
F
Fault codes . . . . . . . . . . . . . . . . . 23
Faults . . . . . . . . . . . . . . . . . . . . . . 23
Frost protection . . . . . . . . . . . . . 17
G
General information . . . . . . . . . . 4
H
Heating control . . . . . . . . . . . . . . 13
I
Information about the appliance 6
K
Key pad lock . . . . . . . . . . . . . . . . 18
M
Maintenance . . . . . . . . . . . . . . . . 24
O
Old appliances . . . . . . . . . . . . . . .25
Operation . . . . . . . . . . . . . . . . . . .9
Overview of controls . . . . . . . . . .10
P
Packaging . . . . . . . . . . . . . . . . . . .25
Proper use . . . . . . . . . . . . . . . . . . .6
R
Recycling . . . . . . . . . . . . . . . . . . . .25
S
Safety instructions . . . . . . . . . . . .4
Summer mode . . . . . . . . . . . . . . .16
Supply temperature . . . . . . . . . . .11
Switching the appliance OFF . . . .11
Switching the appliance ON . . . . .11
T
Thermal disinfection . . . . . . . 5, 19
Type of gas . . . . . . . . . . . . . . . . . .7
Type overview . . . . . . . . . . . . . . . .7
Index | 29
6 720 810 589 (2015/05)
Greenstar FS
30 |
Notes
Notes
| 31
6 720 810 589 (2015/05)
Greenstar FS
United States and Canada
Bosch Thermotechnology Corp. 50 Wentworth Avenue Londonderry, NH03053 Tel. 603-552-1100 Fax 603-965-7581 www.bosch-climate.us U.S.A.
Products manufactured by: Worcester, Bosch Group, Cotswold Way, Worcester WR4 9SW www.worcester-bosch.co.uk
Bosch Thermotechnology Corp. reserves the right to make changes without notice due to continuing engineering and technological advances
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