6720810590-00.2Wo Residential Gas Condensing Boiler Greenstar FS/Combi FS KBR16/21/28/35/42-3A... | KWB 28/35/42-3A...
| 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
| 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.
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.
| 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.
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 systems. Any other purpose is considered improper use. Any resulting damage is excluded from the manufacturer's warranty.
| Preparing the appliance for operation 2.
Preparing the appliance for operation | 9 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. 2 1 30 15 3 45 0 psi 4 bar 6720810589-01.1Wo Fig. 1 Pressure gauge 3.2 Topping up the heating system water Topping up the heating system water is different on every system.
| Operation 4 Operation 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.
Operation | 11 4.1 Overview of controls 1 2 3 12 Fig. 2 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] 4 5 11 10 6 7 8 9 6720810589-03.
| Operation 4.2 Switching the appliance ON/OFF Startup 3 2 1 4 5 6 max 6 720 613 896-05.1O ▶ 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.
Operation | 13 ▶ 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 : reset eco 3 3 4 2 1 2 5 4 e 6 1 6 max min max 6 720 641 933-53.1O Fig. 4 The burner ON indicator lamp lights up if the burner is operating.
| Operation 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 9 12 h 15 18 6 3 24 h 21 6 720 612 660-07.2O Fig. 5 4.5 KBR..
Operation | 15 ▶ Set the DHW temperature on the DHW thermostat . The set DHW temperature flashes on the display for 30 seconds. reset eco 3 2 1 4 3 2 5 6 max 1 4 e 6 max 6 720 641 933-54.1O 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.
| 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..
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.
| Operation ▶ Turn the heating temperature control counterclockwise to . reset eco 4 3 3 5 2 1 e 2 6 1 6 max min max 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 least to position 1.
Operation | 19 Frost protection of the DHW tank: ▶ Turn the DHW thermostat counterclockwise to min (59 °F (15 °C)). reset eco 3 4 3 2 5 1 e 2 6 max 1 6 min 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 alternating on the display.
| 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.
Thermal disinfection | 21 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.
| 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.
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 for 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.
| Troubleshooting 7 Troubleshooting 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. flashing. ) and the reset button may also be 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.
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: .......................................
| 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.
Quick reference | 27 10 Quick reference Startup Start up DHW temperature 6 720 613 896-05.1O 3 4 5 2 1 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 6 max Turning space heating ON reset reset eco eco 3 2 3 4 e 2 5 4 3 4 2 6 1 6 max min max 1 4 3 e 2 5 1 1 6 6 max max 6 720 641 933-53.1O 6 720 641 933-55.
| 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 . . . . . . . . . . . .
Index | 29 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 . .
| Notes Greenstar FS 6 720 810 589 (2015/05)
| 31 Notes 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.
