Residential Gas Condensing Boiler Greenstar combi 100 p / 151 p ZWB28-3A... | ZWB42-3A...
| Contents Contents 1 Explanation of symbols and safety instructions . . . . . . . . . . . . . . . . . . . . . . . 4 1.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Information about the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.1 Certifications . . . . . . . . . . . . . . . . . . . . . .
Contents | 3 8 Environmental protection and disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 9 Quick reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
| Explanation of symbols and safety instructions 1 Explanation of symbols and safety instructions 1.1 Explanation of symbols Warnings In 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 danger are not taken. The following keywords are defined and can be used in this document: DANGER: DANGER indicates a hazardous situation which, if not avoided, could result in death or serious injury.
Explanation of symbols and safety instructions | 5 Important Information The info symbol indicates important information where there is no risk to people or property. Additional symbols Symbol Explanation ▶ Sequence of steps Cross-reference to another part of the document • Listing/list entry – Listing/list entry (2nd level) Table 1 1.2 Safety instructions HGeneral information This manual is available in English and French. ▶ Keep this manual for future use.
| Explanation of symbols and safety instructions ▶ 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.
Explanation of symbols and safety instructions | 7 ▶ From outside the building, call the gas supply company and a trained and certified installer or service company. HIf you smell flue gas ▶ Switch OFF the appliance ( page 16). ▶ Open windows and doors. ▶ Inform a trained and certified heating contractor. HFor appliances operating on room air: Danger of flue gas poisoning if supply of combustion air is insufficient ▶ Safeguard supply of combustion air.
| Explanation of symbols and safety instructions HRisk 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. HRisk of damage due to operator error Operator errors can result in personal injury and damage to property. ▶ Ensure that children never operate this appliance unsupervised or play with it.
Explanation of symbols and safety instructions | 9 HInspection 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. HExplosive and easily combustible materials Never use or store easily combustible materials (paper, thinners, paints, etc.
| Information about the appliance HIn 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. 2 Information about the appliance 2.
Preparing the appliance for operation | 11 2.
| Operation 2 1 30 15 3 45 0 psi 4 bar 6 720 641 934-04.2O Fig. 1 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). 4 Operation These operating instructions apply only to the boiler.
Operation | 13 Therefore, please read the operating instructions for the heating control unit used. Page 27 contains a quick reference. You can fold this outward and keep these operating instructions in the control panel cover. 3 2 1 4 5 6 max 6 720 614 235-04.1O Fig.
| Operation 4.1 1 Overview of controls 2 3 4 5 6 7 8 9 reset 10 eco 11 18 17 16 15 14 13 12 6 720 641 934-01.3O Fig.
Operation | 15 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] Emission test button for contractors (see installation instructions) Service button for contractors (see installation instructions) Burner ON indicator lamp ON/OFF switch Key pad lock ECO button Reset button Display Boiler water pressure gauge DHW thermostat Safety relief valve discharge hose Condensate drain hose Heating return pipe Cold water pipe Gas pipe DHW pipe Supply pipe Boiler high limit dial 672087236
| 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. Fig. 4 If the display shows in alternation with the supply temperature, the appliance operates at its lowest output for 15 minutes per the initial startup sequence. Shutdown ▶ Switch the appliance OFF using the ON/OFF switch. The display goes out.
Operation | 17 ▶ Adjusting the supply temperature with the boiler high limit dial : – 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. 5 The burner ON indicator lamp lights up if the burner is operating.
| Operation 4.4 Programming the heating control unit 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 ▶ How to adjust the room temperature ▶ How to heat economically and save energy 4.5 Setting the DHW temperature ▶ 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 6 720 641 933-55.
Operation | 19 ECO button Pressing and holding the ECO button until it lights up switches between Comfort mode and 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 boiler high limit dial 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. 7 For further information, see the operating instructions for the heating control unit included in the scope of delivery. 4.7 Setting frost protection Frost protection of the heating system: ▶ Leave the appliance switched ON; turn the boiler high limit dial position 1.
Operation | 21 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. 4.8 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.
| Energy saving tips 4.9 Display codes Display Description Fault-Code ( chapter 6) Inspection due Pump anti-seize function active Key pad lock active Condensate trap filling function active Bleeding 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.
Energy saving tips | 23 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. Heating control unit Use a heating control unit with room temperature influence or an outdoor reset control unit and thermostatic valves.
| Troubleshooting 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). 6 Troubleshooting The Heatronic boiler control monitors all safety and control components. If a fault arises during operation, an audible warning tone sounds. NOTICE: Risk of system damage from freezing! The heating system can freeze up in cold weather if it has been disabled by a fault shutdown.
Troubleshooting | 25 An overview of the display codes can be found on page 22. 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. ZWB28-3 A ...): .................................................................................................................... Serial number: .........................................................................................
| Maintenance 7 Maintenance 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.
Quick reference | 27 9 Quick reference Startup DHW temperature WARNING: 6 720 613 896-05.1O Danger of scalding! 4 3 5 2 1 6 max ▶ In normal operation, it is recommended to limit the DHW temperature to 122 °F (50 °C) to limit the risk of scalding. Turning space heating ON reset reset eco eco 3 3 3 4 2 2 5 4 4 2 e 1 6 4 3 e 2 5 1 1 1 6 6 6 max max min max max 6 720 641 933-53.1O 6 720 641 933-55.
| List of keywords List of keywords C Certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 D Details about the appliance proper use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of keywords | 29 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Overview of boiler types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 P Packaging method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Proper use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
United States and Canada Bosch Thermotechnology Corp. 50 Wentworth Avenue Londonderry, NH 03053 Tel. 603-552-1100 Fax 603-965-7581 www.bosch-climate.us U.S.A. Products manufactured by Bosch Thermotechnik GmbH Junkersstrasse 20-24 D-73249 Wernau www.bosch-thermotechnology.com Bosch Thermotechnology Corp. reserves the right to make changes without notice due to continuing engineering and technological advances.
