Related Manuals for Worcester GREENSPRING CWi47
Summary of Contents for Worcester GREENSPRING CWi47
- Page 1 INSTALLATION AND OPERATING INSTRUCTIONS WALL HUNG RSF GAS CONDENSING INSTANTANEOUS WATER HEATER GREENSPRING CWi47 FOR MAINS FED DOMESTIC HOT WATER 6720646322-00.1V...
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Page 2: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS KEY TO SYMBOLS AND SAFETY INSTRUCTIONS 3 FLUE OPTIONS ......31 Explanation of symbols . -
Page 3: Key To Symbols And Safety Instructions
KEY TO SYMBOLS AND SAFETY INSTRUCTIONS KEY TO SYMBOLS AND SAFETY INSTRUCTIONS EXPLANATION OF SYMBOLS SAFETY INFORMATION WARNING SYMBOLS PLEASE READ THESE INSTRUCTIONS CAREFULLY Safety instructions in this document are BEFORE STARTING INSTALLATION. framed and identified by a warning triangle THESE INSTRUCTIONS ARE APPLICABLE TO THE which is printed on a grey background. - Page 4 KEY TO SYMBOLS AND SAFETY INSTRUCTIONS HEALTH AND SAFETY FITTING AND MODIFICATIONS The appliance contains no asbestos and no substances Fitting the appliance and any controls to the appliance have been used in the construction process that may only be carried out by a competent engineer in contravene the COSHH Regulations (Control of accordance with the current Gas Safety (Installation and Substances Hazardous to Health Regulations 1988).
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Page 5: Standards
STANDARDS STANDARDS BRITISH STANDARDS: IRISH STANDARDS Where no specific instruction is given, reference should The relevant Irish standards should be followed, be made to the relevant British Standard codes of including: Practice. • ECTI National rules for electrical installations BS7074:1 Code of practice for domestic and hot water •... -
Page 6: Appliance Information
APPLIANCE INFORMATION APPLIANCE INFORMATION INTENDED USE • Modulating fan with constant gas:air ratio control • LCD panel with back light The device should only be used to produce hot water for domestic or commercial uses. • Real time fault diagnostics •... -
Page 7: Dimensions
APPLIANCE INFORMATION DIMENSIONS 166 52 285,8 6720608917-01.2Av Fig. 1 Front cover Controller Cold water inlet: Ø 3/4" (supplied loose with 22mm copper pipe with 3/4" connection nut and a 22mm isolation valve incorporating filter) Gas connection: Ø 3/4 “ (isolating valve supplied loose) Hot water outlet: Ø... -
Page 8: Layout
APPLIANCE INFORMATION LAYOUT 6720646322-04.1V Fig. 2 Condensing heat exchanger Ionization sensor Heat exchanger Secondary fan Primary fan Pressure test point gas valve Hot water temperature sensor Gas valve Control unit Water valve with flow sensor and cold water temperature Flue gas overheat sensor sensor Flue gas temperature sensor Controller with LCD display... -
Page 9: Circuit Diagram
APPLIANCE INFORMATION CIRCUIT DIAGRAM T=90°C T=104°C T=110°C 6720608917-02.1AL Fig. 3 Electrical scheme Intlet water temperature sensor Outlet water temperature sensor Flue gas recirculation temperature sensor Cascade kit output connection Cascade kit input connection Ionization sensor Water flow sensor Flue gas overheat sensor Heat exchanger overheat thermostat (104°C) Gas valve Flue gas temperature sensor... -
Page 10: Technical Data
APPLIANCE INFORMATION 3.10 TECHNICAL DATA Technical characteristics Symbol Units CWi47 Power and flow Nominal output 50.3 Minimum output Pmin Output (adjustment range) 6 - 50.3 Nominal input 48.4 Minimum input Qmin Gas data Supply pressure Natural gas mbar LPG (propane) mbar Gas consumption Natural gas (Hi = 9,5 kWh/m3) -
Page 11: Operational Instructions
APPLIANCE INFORMATION 3.11 OPERATIONAL INSTRUCTIONS HOT WATER Open the gas and water valves and ensure that all joints are tight. Place the on-off switch (Fig. 8, pos. 1) in the operating position (chapter 5.3), so that the appliance is ready for use. -
Page 12: Installations Examples
INSTALLATIONS EXAMPLES INSTALLATIONS EXAMPLES SINGLE UNIT WITHOUT SECONDARY RETURN 6720646322-16.1V Fig. 4 Gas supply Gas isolation valve (supplied with appliance) Cold mains inlet DHW outlets Water isolation valve (supplied with appliance) Non return valve DHW flow SINGLE UNIT WITH SECONDARY RETURN 6720646322-17.1V Fig. -
Page 13: Multiple Units Without Secondary Return
INSTALLATIONS EXAMPLES MULTIPLE UNITS WITHOUT SECONDARY RETURN 6720646322-18.1V Fig. 6 Gas supply Gas isolation valve (supplied with appliance) Cold mains inlet DHW outlets Water isolation valve (supplied with appliance) Non return valve DHW flow Cascading kit (part number 7 736 500 272) MULTIPLE UNITS WITH SECONDARY RETURN 6720646322-19.1V Fig. -
Page 14: Operating Instructions
OPERATING INSTRUCTIONS OPERATING INSTRUCTIONS 6720608920-10. 1 AL Fig. 8 Main ON/OFF button Reset button Program button LCD display Temperature increase key/ programming button Temperature decrease key / programming button LCD DISPLAY Fig. 12 Locked condition indicator (only with remote Do not use any aggressive cleaning agents to control) clean the display. -
Page 15: Before Operating The Appliance
OPERATING INSTRUCTIONS BEFORE OPERATING THE APPLIANCE WATER TEMPERATURE SETTING The temperature value indicated on the LCD CAUTION: panel corresponds to the temperature B The initial startup of the water heater taken as the water leaves the appliance. must be carried out by a qualified and registered gas installer, who will provide Factory default temperature set point: 42 °C. -
Page 16: Draining Down The Appliance
The internal frost protection is designed to If the fault remains and cannot be cleared by pressing provide protection for the water heater the reset button, contact Worcester, Bosch Group for down to approximately -10 °C for short term assistance. -
Page 17: Installation Instructions
INSTALLATION INSTRUCTIONS INSTALLATION INSTRUCTIONS APPLIANCE LOCATION AND DANGER: CLEARANCES B ISOLATE THE MAINS GAS SUPPLY BEFORE STARTING ANY WORK AND CONSIDERATIONS RELEVANT TO LOCATION OBSERVE ALL RELEVANT SAFETY B This appliance must be installed at a suitable location PRECAUTIONS. onto a fixed, rigid vertical surface at least the same size as the appliance and capable of supporting the CAUTION: appliance weight. -
Page 18: Minimum Clearances
If water quality exceeds one or more of the values specified below, Bosch recommends installing a water conditioner or softener. If the water heater is operating in applications where the outlet temperature exceeds 60°C, a water softening system is strongly... - Page 19 INSTALLATION INSTRUCTIONS B Lift front cover panel upward and remove. Description Max. Levels 6.5 - 8.5 TDS (total mg/l or ppm Dissolved Solids) Total hardness mg/l or ppm Aluminum mg/l or ppm Chlorides mg/l or ppm Copper mg/l or ppm Iron mg/l or ppm Manganese...
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Page 20: Water Connection
INSTALLATION INSTRUCTIONS WATER CONNECTION CONDENSATE PIPE WORK CAUTION: B Isolate the mains supplies before starting any work and observe all relevant safety precautions. B Mark the hot and cold water pipes in order to avoid confusion. B Join the hot and cold pipework onto the connections provided. - Page 21 INSTALLATION INSTRUCTIONS internal foul water discharge point such as an internal soil and vent stack. A suitable permanent connection to the foul waste pipe should be used. 32mm 6720646322-11.1V 32mm Fig. 30 Condensate pump disposal 6.7.2 EXTERNAL CONNECTIONS Fig. 28 Disposal to soil vent stack NOTICE: Freezing conditions Alternatively if the first option is not possible an internal B Pipe work length should be kept to a...
- Page 22 INSTALLATION INSTRUCTIONS B The external run be kept as short as possible and not Pipe drainage will be improved if the end is cut at 45° as exceed three metres. opposed to a straight cut. B The pipe should be run internally as far as possible before going externally and the pipe diameter should be at least 32mm before it passes through the wall to the exterior.
- Page 23 INSTALLATION INSTRUCTIONS 6720646322-14.1V Fig. 33 Soak away 6720646322-15.1V Fig. 34 Condensate pump to external disposal 6 720 646 322 (2012/05)
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Page 24: Gas Connection
INSTALLATION INSTRUCTIONS GAS CONNECTION DANGER: B TURN OFF THE GAS SUPPLY AND ISOLATE THE MAINS SUPPLIES BEFORE STARTING ANY WORK AND OBSERVE ALL RELEVANT SAFETY PRECAUTIONS. Only use accessories recommended in this manual. The gas connection must comply with current building requirements. -
Page 25: Flue Options
INSTALLATION INSTRUCTIONS FLUE OPTIONS 6.9.1 FLUE TERMINAL POSITIONS All measurements in millimetres Dormer Window 1,500 Velux Window Drainpipe 1,200 1,500 Boundary Window 6720643895-13.2Wo Fig. 36 Flue terminal positions NOTICE: B All measurements are the minimum clearances required. B Terminals must be positioned so to avoid combustion products entering the building. B Support the flue at approximately one metre intervals and at a change of direction, use suitable brackets and fittings (Flue bracket 125mm part number :7 716 191 174). - Page 26 INSTALLATION INSTRUCTIONS EXAMPLE TABLE: CAUTION: Concentric conduts B Where a flue system is not going to be accessible, provision must be made for Straight section length 5 x 1 = service and inspection. 90° elbow (qty) _1_ x 2 = B Voids containing concealed flues must have at least one inspection hatch no less 45°...
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Page 27: Flue Installation
INSTALLATION INSTRUCTIONS 6.10 FLUE INSTALLATION HORIZONTAL FLUE (80/125mm diameter) For 80/125 mm vertical flues and 80/125mm horizontal flues, please refer to separate instructions supplied with the flue kit. To ease assembly of flue components, apply silicone lubricant to sealing surfaces. 6.10.1 MEASURING THE FLUE (STANDARD FLUE): 6720643895-31.1Wo B Measure from the outside of the wall to the centre line... - Page 28 INSTALLATION INSTRUCTIONS 6.10.3 INSTALLING THE TELESCOPIC FLUE: Refer to figure 41. 6.10.4 FLUE TERMINAL PLUME RE-DIRECTION 1. Set the flue length to the distance required, secure The flue discharge can be re-directed allowing some with screws provided. plume redirection control, alternatively, a complete plume management system can be fitted to the flue 2.
- Page 29 INSTALLATION INSTRUCTIONS NOTICE: Outlet position B The flue terminal outlet position must follow those stated in the relevant appliance instruction manual. When redirecting the flue discharge the outlet terminal must be at least 1500mm from any opening in the direction of the discharge to prevent combustion products from entering the building.
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Page 30: Filling The Condensate Trap
INSTALLATION INSTRUCTIONS 6.11 FILLING THE CONDENSATE TRAP B Remove the clip and disconnect the drain pipe ( Fig. 46). CAUTION: Before the first start up of the appliance, after a long period of inactivity or whenever it follows the cleaning of the condensate trap;... -
Page 31: Flue Options
FLUE OPTIONS FLUE OPTIONS FLUE ACCESSORIES (DIAMETER IN DANGER: Make sure that all flue connections are properly sealed. B Failure to follow this requirement may cause dangerous exhaust gases to enter living space which may result causing personal injury or loss of life. 7.1.1 CONCENTRIC PIPE ADMISSION / EXHAUSTION Ø80/125 MM Description... -
Page 32: Electrical Connection
ELECTRICAL CONNECTION ELECTRICAL CONNECTION CONNECTION DANGER: RISK OF ELECTRIC SHOCK! B ISOLATE THE MAINS ELECTRIC SUPPLY The mains supply to the appliance must be BEFORE STARTING ANY WORK AND either: OBSERVE ALL RELEVANT SAFETY B The mains electrical supply to the water PRECAUTIONS. -
Page 33: Position Of The Fuses In Control Unit
ELECTRICAL CONNECTION POSITION OF THE FUSES IN CONTROL UNIT To check fuses, proceed as follows; B Remove the front cover ( Fig. 24). B Remove the three screws from the control unit ( Fig. 49 and Fig. 50, pos. 1). 6720608920-09.1AL Fig. -
Page 34: Installation Of Intelligent Cascading Kit
ELECTRICAL CONNECTION INSTALLATION OF INTELLIGENT B Feed the cascading cable to the left from the primary appliance through the hole at the bottom of the CASCADING KIT adjacent secondary appliance. Each appliance comes equipped with two connectors B Connect to the 'cascading input' connector of the inside for the installation of the intelligent cascading kit. -
Page 35: Functional Requirements For Cascade Systems
ELECTRICAL CONNECTION FUNCTIONAL REQUIREMENTS FOR Operating hours CASCADE SYSTEMS Number in H0 ________+ 8.7.1 HOT WATER REQUESTS Number in H1 ______ (X100) ________+ When a water heater reaches 80% of its capacity, it Number in H2 ______ (X10000) ________+ passes on hot water requests to the next secondary water heater in the system. -
Page 36: Commissioning
COMMISSIONING COMMISSIONING FACTORY REGULATIONS B Check the gas supply working pressures in the system conform to the readings shown in the table below: Sealed components must not be opened. Natural gas Allowed mbar pressure drop meter / across heater across DANGER: Serious personal injury! regulator pipework... -
Page 37: Measuring Gas Pressure
COMMISSIONING MEASURING GAS PRESSURE B Press and hold "Program" button and press ON/OFF button to turn appliance ON ( Fig. 55). Confirm gas pressure after installation. CONNECTING GAS PRESSURE GAUGE B Shut off gas supply. B Remove the front cover ( Fig. - Page 38 COMMISSIONING B Record the CO reading in P1 in the table 17. CAUTION: Insufficient gas pressure Analyzer reading may take several minutes to May affect CO levels. stabilize. B Press button until P2 appears. Unit will ramp B Check and adjust gas pressure down to low fire and the water flow should decrease.
- Page 39 COMMISSIONING B Turning the plastic #40 Torx screw clockwise. Program values measured Date P2 CO levels will increase. ______________ % Note: This screw adjustment is very ______________ % sensitive and should be made in small Tab. 19 increments. It may take several minutes for readings to stabilize.
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Page 40: Program Values
COMMISSIONING PROGRAM VALUES CAUTION: Misadjusted program values can This section describes details on programming the lead to appliance malfunction, errors, and appliance. For most applications the factory default service calls. values will provide robust and stable operation. Program Description Factory default Comment Maximum Power N. -
Page 41: Appliance Cascading Mode Setting
COMMISSIONING APPLIANCE CASCADING MODE SETTING Perform this procedure on all appliances in the cascading set up. All appliances in the installation must be adjusted to the same outlet water temperature. By selecting on any appliance all the others will update the set temperature accordingly. -
Page 42: Control Board Diagnostics
COMMISSIONING CONTROL BOARD DIAGNOSTICS Diagnostic menu To access the diagnostic menu, proceed as follows: Most recent error/failure B Press ON/OFF button to turn off the appliance. 2nd most recent error B Press and hold "Program" button and press ON/ 3rd most recent error OFF button to turn appliance ON. -
Page 43: Fan Speed Adjustment
COMMISSIONING FAN SPEED ADJUSTMENT Concentric flues The maximum flue length when using the condensfit 80/ Straight section length ___ x 1 = ________ 125 flue gas system is 8 metres. In all cases, the equivalent flue length calculation and fan 90°... -
Page 44: Registration Of Remote Control
COMMISSIONING B Press one time to access the program P2. In the NOTE: up to 6 remote controls can be LCD display is visible the attributed value (factory connected to a single water heater, each value: 12). with a range distance of 30m. B Press to choose the fan speed suitable with your installation, see tab. -
Page 45: Program Button
COMMISSIONING B Press "Program" button for 3 seconds to save CAUTION: temperature. This remote control must only be operated The temperature is saved on "Program" when the LCD by a responsible adult who has been panel stops blinking. instructed in, understands, and is aware of USING "PROGRAM"... -
Page 46: Service And Spares
SERVICE AND SPARES SERVICE AND SPARES To ensure the appliance correct functioning we – Dismantle the combustion chamber and remove recommend an annual inspection or if necessary the heat exchanger overheat thermostat ( Fig. 2 maintenance. [8]). – Clean the chamber with a pressurized water jet. Your appliance must only be serviced by a B If the dirt resists: soak soiled parts in hot water with qualified service engineer. -
Page 47: Check The Fuses In The Control Board
SERVICE AND SPARES 10.2 CHECK THE FUSES IN THE CONTROL WATER FILTER BOARD B Close the water inlet valve. B Dismantle the cold water inlet pipe ( Fig. 64). To check fuses, proceed as follows; B Remove the front cover ( Fig. -
Page 48: Condensing Heat Exchanger Unit
SERVICE AND SPARES 10.3 CONDENSING HEAT EXCHANGER B Flush, clean and inspect condensing heat exchanger. If deterioration is detected or dirt can not be UNIT removed, dismantle all parts of the heat exchanger for The condensing heat exchanger unit must detailed inspection and cleaning. - Page 49 SERVICE AND SPARES B Open the condensate trap cover. B Fill the condensate trap by pouring approx. 400ml of water into the top of the drain tube. To avoid damage to the appliance use a funnel in this operation ( Fig.
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Page 50: Startup After Maintenance
SERVICE AND SPARES B Check water level in the condensate trap ( Fig. 74). 6720646322-29.1V Fig. 74 B After filling reassemble all parts in reverse order. 10.4 STARTUP AFTER MAINTENANCE B Check all water and gas joints. B Read chapter 5 "Operating instructions" and/or chapter 9 "Installation instructions". -
Page 51: Fault Finding And Diagnosis
FAULT FINDING AND DIAGNOSIS FAULT FINDING AND DIAGNOSIS 11.1 FAULT FINDING To remove error code from the display, press the reset button. Display Cause Solution Fault in the flue temperature 1. Check continuity of the flue temperature sensor (normaly sensor. closed).* Temperature above 110 °C 2. - Page 52 FAULT FINDING AND DIAGNOSIS Display Cause Solution (Flashing) Hot water outlet temperature 1. Check that the sensor is firmly attached to the vertical sensor not sensing expected section of the hot water pipe.* output temperature. (Status 2. Clean the water filter, and any dirt in the taps and also the message, not a fault code).
- Page 53 FAULT FINDING AND DIAGNOSIS Display Cause Solution Hot water temperature sensor 1. Check the sensor is located and fixed correctly. (NTC) on the hot water outlet 2. Check the electrical connections and connectors of the hot of the appliance detect a high water temperature sensor.
- Page 54 FAULT FINDING AND DIAGNOSIS Display Cause Solution No flame ionization detected 1. Verify that all manual gas isolation valves are open. when water flowing. 2. Check gas type. 3. Check inlet gas pressure.* 4. Reset fault code and open a hot water tap to cycle the heater in an effort to release air from the hot water system.
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Page 55: Hot Water Function
HOT WATER FUNCTION HOT WATER FUNCTION IDLE Water flow water tap See error code table > 1.9 l/min open? (see WF calc.) Fan speed = correct Ionization = off Appliance Temp. limiter = closed ready to start? Temp. sensors = ok Over heat protection = ok waiting Fan speed... -
Page 56: Environmental Protection
ENVIRONMENTAL PROTECTION ENVIRONMENTAL PROTECTION Environmental protection is a fundamental corporate strategy of the Bosch Group. The quality of our products, their economy and environmental safety are all of equal importance to us and all environmental protection legislation and regulations are strictly observed. -
Page 57: Greenspring Water Heater Guarantee
• During the period of this guarantee any components of the Greenspring water heater which are proven to be faulty or defective in manufacture will be exchanged or repaired free of charge by Bosch Thermotechnology Ltd. • The user may be asked to prove the date of... -
Page 58: Service Record
Service Record It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service Provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. - Page 60 01905 752571 LITERATURE: 0844 892 9800 TRAINING: 01905 752526 SALES: 01905 752640 Worcester, Bosch Group Cotswold Way, Warndon, Worcester WR4 9SW. Tel. 0844 892 9900 Worcester, Bosch Group is a brand name of Bosch Thermotechnology Ltd. worcester-bosch.co.uk 6 720 646 322...