Bosch W2 range user manual
Contents
1. H 135 mm est 1 Y 80 mm 80 mm 80 125 mm ao ERR 11 MN 80 mm Li 080mm mie Fig 40 6 4 3 Exhaustion type C45 80 125 mm Fig 41 Therm 8000 S 6720680 174 2012 09 26 Admission exhaustion accessories accessory Y 80 125 mm 6 4 4 Exhaustion type C33 a 980 125mm 7 28 80 28 mmi A d Y Ha Z 2 100 Y gt 7 A 2 Z7 F 7 A 2100 Ges Z 2 A Fig 42 6 4 5 Exhaustion type C43 Fig 43 6720680 174 2012 09 Therm 8000 S Electrical connection 27 6 4 6 Exhaustion type C55 J 135 mm est 80 125 mm WA Y 80 mm 4 D 80mm Fig 44 7 1 Connection The electrical connection should be DANGER Risk of electric shock according to current regulations regarding domestic electrical installations Always disconnect the power supply to h ionis absolut l the appliance atthe mains before carrying An earth connection is absolutely es out any work on the electrical sys tems sential and components 7 Electrical connection Connect the feed cable to an earthed power point All regulation verification and2. Description 980 80mm 980 125mm 30 elbow 0 4m 0 7m 45 elbow 0 5m 1 5m 90 elbow im 2m exhaust pipe per meter 1m im Horizontal vent kit 1 5m Table 16 8 6 1 Total equivalent vent length calculation 980 mm How to calculate the total lenght of the exhaust conduct Determine the total length of all straight sections of vent pipe and enter in table 17 line 1 Countthe number of 90 elbows used multiply by 1m and enter that value in table 17 line 2 Do not count non concentric terminals and first elbow used on intake and exhaust Countthe number of 45 elbows used multiply by 0 5m and enter that value in table 17 line 3 Countthe number of 30 elbows used multiply by 0 4m and enter that value in table 17 line 4 Do not count non concentric terminals and first elbow used on intake and exhaust D Repeat the previous procedure to calculate the total length of the admission of air conduct Insert values in table 18 gt Sum the total of the table 17 with the total of the table 18 and to put the result in the line 6 of the table 18 This is the total equivalent vent length 1 Straight section length x1 2 90 elbows qty _xl EN 3 45 elbows qty 5052 4 30 elbows qty 04 Ti 5 Sub total NET Table 17 Straight section length 90 elbows qty 45 elbows qty 30 elbows qty Sub total Total equivalent vent length Table 18 Als e ok x
3. Fig 62 Filling the condensate trap after installation Loosenthe three screws of the control unit Fig 56 Putthe control unit in service position by engaging its tabs with the holes in the bottom horizontal sheet metal see Fig 63 Fig 63 After filling reassemble all parts in reverse order 9 4 Startup after maintenance Check all water and gas joints Read chapter 4 Operating instructions and or chapter 8 Installation instructions Check gas pressure burner pressure Make sure combustion cover is securely fastened Ensure the exhaust vent adaptor is properly sealed Check for gas leakage Check for water leakage vow Nw NN 6720680 174 2012 09 Therm 8000 S Problem solving 41 10 Problem solving 10 1 Problem Cause Solution To remove error code from the display press the reset button Display Cause Solution Fault in the flue gas limiter 1 Check continuity of the flue gas limiter normaly closed Temperature above 110 C 2 Check for flue gas leakage around the top and bottom seals of heat m inside the cabinet exchanger use mirror to check around the rear as well as the viewing Gm i window gt 3 Check venting specifications are met Long vent lengths venting with i more than three elbows blocked vent or combination venting may ume cause this failure 4 Check that flue gas limiter connector and spade connection
4. 4 8 Program button Program button can be used programed in the appliance and in the remote control Programing Program function D Each remote control program button can be programed with different temperature values according with the user needs A temperature value can be programmed in the remote control and another value inthe appliance 6720608920 321AL Operating instructions 13 The appliance does not have a designated default priority Priority is attributed when the first user selects a temperature see chapter 4 4 The following symbol appears for other users v The priority user may change the initial selection at any time Non priority users cannot change the selection made by the priority user The system resets priority function 5 minutes after last water demand returning to the initial state To select priority Any user may select temperature selection priority in the following manner gt Press one of the selection keys CO or U for 5 seconds D 4 10 Purge the appliance If there is a risk of freezing proceed as follows Priority cannot be selected when the appliance is working Close the cold water valve of the water heater Open hot water taps to drain the water heater Remove all the water contained inside of the appliance CAUTION The non accomplishment of the purgative of the appliance whenever the freezing risk exists it can damag
5. 00 Press ON OFF button Fig 4 pos 1 to disconnect the appliance Remote control is now deactivated Press the ON OFF button to turn ON the remote control and it s ready to work D 4 7 Remote control operation accessory n 7 709 003 756 This appliance fulfills European directive requirements 1999 5 CEE R amp TTE and corresponds to the specifications described in the corresponding CE certificate of proof Press buttons y and 7 in order to reach requested temperature 8720608740 10 115 Fig 16 Remote control temperature selection H A Batteries replacement Remove the 2 screw from the remote control back gt Open the cover Remove the old batteries and correctly place the new ones Close the remote control assuring that both screws are tighten screwed N Precautions when using the batteries Donotdispose of batteries as domestic waste Take them to appropriate collecting places for recycling Donotinsertflat batteries Only use the type of batteries indicated NOTE up to 6 remote controls can be programmed for one single water heater each with a range distance of 30m CAUTION remote control is not a toy do not allow children to play with the remote control unit CAUTION remote control can be used under the shower 43 however it s immersion must not be forced 6720680 174 2012 09 Therm 8000 S
6. Therm 8000 S 6720680 174 2012 09 36 Installation instructions Fan speed for separate tubes 080 80 mm Mode Conduct length 1 Fan speed P2 From 1 m until 6 m 12 from 6 1 m until 14m 13 from 14 1m until 16 m 14 Table 23 1 Total conducts lengths of table 18 Do not count with the first elbow and the accessory of wind rain protection Fan speed for concentric conducts 080 125 mm Mode Conduct length Fan speed P2 From 1 m until 3 m 12 from 3 1 m until 7 m ilg from 7 1m until 8m 14 Table 24 1 Total conducts lengths of table 21 Do not count with the first elbow and the accessory of wind rain protection i Do not set P2 to greater then 14 6720680 174 2012 09 Therm 8000 S Maintenance 37 9 Maintenance To ensure that gas consumption and the environmental load pollution etc remain as negligible as possible over a longer period of time we recommend that you assure to have the appliance maintained on an annual basis inspection or if necessary maintenance Your appliance must only be serviced by a qualified technician D DANGER Electrical discharge Always disconnect the electrical current fuse safety power switch before working on the electrical installation A Your appliance must only be serviced by a Bosch Technical Assistance delegate Use only genuine accessories Order accessories according to the list of accessorie
7. highly recommend that the installation is done by a certified gas installer Therm 8000 S 6720680 174 2012 09 Chefs Pride cc a division of The GAS Company 25 Jakaranda Street Hennopspark Centurion South Africa Tel 27 12 653 3295 6720680174
8. Backflow temperature sensor Cascading output connection Cascading input connection lonization sensor Water flow sensor Room sealed box temperature sensor Heat exchanger overheat sensor 104 C 10 Gas valve 11 Exhaust temperature sensor 12 Water valve 13 Primary fan 14 ON OFF switch 15 Secondary fan 16 AC plug 17 Main connection 19 Ground post 20 Antifreeze kit connection 21 Fuse 22 Fuse MN e eL SUE Therm 8000 S 6720680 174 2012 09 8 Technical Characteristics and Dimensions 2 9 Technical data Technical characteristics Symbol Units GWHC 27 CTDE Power and flow Nominal useful power Pn kW Btu h 47 160 370 Minimum useful power Pmin kW Btu h 6 20 475 Useful power adjustment range kW 6 47 Nominal thermal flow Qn kW Btu h 48 4 165 295 Minimum thermal flow Qmin kW Btu h 6 20475 Gas data Supply pressure LPG Butane G30 kPa 3 0 Natural gas G20 kPa 2 0 Consumption LPG Butane G30 kg h 3 8 Natural gas G20 m3 h 5 1 Water data Maximum permissible pressure pw bar 12 Minimum operating pressure pwmin bar 0 3 Minimum activation flow l min 1 9 Maximum water flow with temperature rise of 25 C l min 27 Combustion products contents DIN 4705 Exhaust gas flow LPG Butane kg h 79 3 Temperature of gases at extractor grill Exhaust temperature at maximum power C 65 Exhau
9. Fitting Diagrams Lightly grease seal on flue side with solvent free grease e g Vaseline Fig 35 Push flue kit fully home in this case 50 mm insertion depth Fig 36 N Drill two 3 mm diameter holes in the combus tion air pipe Maximum drilling depth 8 mm It is essential that flue pipe is not damaged Fig 37 N Secure joint with the screws supplied Fig 38 Y A 50 x 3mm X SH ES 360 6 720 604 873 17 10 Fig 35 Fig 37 Fig 38 6 720 604 873 18 10 6 720 604 873 21 10 6 720 604 873 22 10 Therm 8000 S 6 720 680 174 2012 09 24 Admission exhaustion accessories accessory 80 125 mm 6 4 Approved flue systems 6 4 1 Exhaustion type Az Outdoor installation with accessory n 7 709 003 732 6720608835 01 1 AL Fig 39 Ref Description Minimum distance A Installation next to window Installation next to door Installation near of any open for air gt 1 250m B recirculation C D Clearance to side wall gt 1 250m E Clearance to roof or gutter gt 1m F Clearance to the ground gt 1 200m G Clearance to gas meter or regulator gt 1 500 m Table 7 Installation clearances 6720680 174 2012 09 Therm 8000 S Admission exhaustion accessories accessory Y 80 125 mm 25 6 4 2 Exhaustion type B23 Ld ES
10. control panel until the display reads P4 You are now in the diagnostic mode of the control board When the display reads P4 press and release the D button once again and the display should read E Usethe ond button on the control board to cycle through different diagnostic modes available Once in the sele diagnostic mode of your choice press and release the a button to display the diagnostic information Example to read the flow rate in liters per minute while the unit is flowing water cycle to the 3d mode and press the button A reading of 25 on the display would indicate the heater is reading a flow rate of 2 5 liters minute Once the information is obtained Pressthe D button again to return to the diagnostic mode menu Press or buttons until the letter E appears on the disptay to leave the diagnostic menu Press y button and in the display appear P4 Press ON OFF button to turn off the appliance Press ON OFF button to turn ON the appliance Heater is ready for normal operation 3F 3rd most recent error 4F 4th most recent error 5F 5th most recent error 6F 6th most recent error TF Tth most recent error 8F 8th most recent error 9F 9th most recent error 10F 10th most recent error HO Numbers of hours mode O Hi Numbers of hours mode 1 H2 Numbers of hours mode 2 Table 14 1 Only availabl
11. d safety M lt devices NO D e Post purge of fan for 7 sec Stay blocked till RESET dose one gas r valve f NO M Awaitin ah time of YES Y CS 1s passed close second ANater flow ame on A EES d Calculus Post un e of we Min pm Men anto m o Set point inlet Zz NO SS ema 0 5 GPM lt WF lt 1 6 GPM 2 Vmin lt WF 6 l min WF 1 6 GPM WF gt 6 l min YES Burner shutdown EA shutdown SCH Set point 9 F 5 C Set point 14 F 8 C WF lt 0 45 gpm 0 05 gpm WF 0 45 gpm 0 05 gpm Kee REEL Water flow procedure Fig 64 Therm 8000 S 6 720 680 174 2012 09 46 Environmental protection 12 Environmental protection Environmental protection is a basic strategy of our company The quality of our products profitability and environmental protection are equal ranking goals for us Laws and regulations concerning environmental protection are strictly observed We use the best possible technology and materials under economic considerations to protect the environment Packaging We participate in the recycling program of the respective country to ensure optimal recycling All of our packaging materials are environmental friendly and can be recycled Old appliances Old appliances contain valuable materials that should be recycled The
12. detergents containing halogenic hydro carbons or any product that might provoke corrosion must not be stored near the air admission grill Where these conditions are impossible to fulfill an alternative site for gas admission and exhaust must be selected Surface Temperature The maximum surface temperature of the appliance is below 85 C Special protection measures are not required for inflammable building materials or housings 5 3 Minimum distances Determine the installation site with the following limitations in mind Maximum seclusion of all salient parts such as hoses and pipes etc Ensure adequate access for maintenance work respecting the minimum distances indicated in Fig 21 Therm 8000 S 6 720 680 174 2012 09 16 Installation instructions A 2 n Q ojo e te 6720608913 04 1AL 5 5 Installation CAUTION Possibility of damage caused by foreign bodies Purge all tubes to eliminate possible foreign bodies A Fig 21 Minimum distances A Front gt 2 cm Side gt 1 cm 5 4 Installation of fixing bracket Before installing the fixing bracket ensure that the water gas exhaust connections are guaranteed D Fix the fixing bracket to the installation point selected Mark the position of the holes for the fixing bracket make sure that the fixing bra
13. in fan or defective control unit call the Technical Assistance E Flashing Water flow signal over 1 Disconnect power supply cord and check wire connections on water mp mp Specified maximum value valve and the two connectors on the control board Water flow gt 37 l min 2 Excessive water pressure and flow Ensure water pressure is less E than 10 bar and flow rate is below 37 Litros per minute Software hardware failure 1 Disconnect power supply cord and check the two wire and ground ap D connections on control board as well as ground connection on heater i i chassis 3 2 Pressing the wrong combination of buttons on the control unit can create confusion among the microprocessors inside In this case the a am error code should not happen more than once or twice Turn off the water heater Turn water heater back on and try resetting error code Use the reset button to reset any error codes 3 Possible defective control unit call the Technical Assistance Table 25 By installer or service technician only 6720680 174 2012 09 Therm 8000 S Problem solving 43 Display Cause Solution Hot water temperature sensor 1 Check the correct position and fixation of the NTC sensor GH NTC at the exit of the 2 Check the electric connections and connectors of the hot water i appliance detect a high temperature sensor Clean terminals If the terminals are rusted ZTN temperature of the
14. resets when cooler overheat sensor and the two connectors on the control board see Fig temperatures are detected 2 pos 7 op am 104 e 2 Check white wire connections at the overheat sensor Clean terminals with an eraser If badly corroded replace sensor and wire harness um eg 3 Check that venting specifications are met Long vent lengths venting with more than three elbows blocked vent or combination venting may cause this failure 4 Clean the water filter any dirty in the faucets and also all the water filters of the installation 5 In areas where water has a high mineral content periodic descaling may necessary 6 Unplug power supply cord to the water heater Open a hot water tap for several minutes to allow cold water to pass through heat exchanger Close hot water tap and disconnect lead wires to overheat sensor Using a multimeter check continuity through overheat sensor contacts Replace sensor if open Table 25 By installer or service technician only Therm 8000 S 6720680 174 2012 09 44 Problem solving DENY Cause Solution No flame ionization detected 1 Verify that all manual gas shut off valves are open with water flow 2 Check gas type gt 6 6 3 Check gas pressure i 4 Reset error code and open a water tap to cycle the heater in an effort to purge air Cycling hot water tap on and off multiple times may be d necessary If heater still faults with EA error code have a l
15. the condensate water drain to the appliance The condensate must be disposed of in i accordance with local codes 5 8 Gas connection property damage personal injury or loss of DANGER If local regulations are not follow N exactly afire or explosion may result causing life Only use accessories recommended in this manual The gas connection must fulfill local regulations 6720680174 041Av Fig 26 1 Condensate trap cover 2 Condensate water drain When the installation is effected with non metallic flexible tubes for use with bottled Butane the following should be observed Use materials approved by the authority D having jurisdiction thetubes should be as short as possible and no longer than 1 5m the tube should be to IPQ ET 1038 standard and fulfill all applicable regulations itshould be accessible for inspection along its entire length e itshould not be located near heat sources bends and other obstructions should be avoided the ends should be secured with adequate accessories and clamps Tubes must be replaced every four years or whenever it becomes dry or brittle Ensure that the inlet tube is clean Use the tube support accessory provided and an appropriate clamp to make the gas inlet connections to the appliance Install a gas shut off tap as near to the appliance as possible When the gas inlet is connected to the main metallic tu
16. 0 5 x04 a A O MO re Example Exhaust e 5units of 1m straight sections e unit of 1m straight sections Total length 6 meters 2 90 elbows Intake e Aunits of 1m straight sections Total length 5 meters 2 90 elbows Example table 1 Straight section length 6x1 6 D 90 elbows qty 1x1 1 3 45 elbows qty 0 x0 5 0 4 30 elbows qty 0x04 0 5 Sub total T Table 19 6720680 174 2012 09 Therm 8000 S Installation instructions 35 al Straight section length 4 x1 4 2 90 elbows qty 1x1 1 3 45 elbows qty 0x05 0 4 30 elbows qty 0x04 0 5 Sub total 5 6 Total equivalent vent length 12 Table 20 Note Do not count terminals and first elbow used on intake and exhaust Total maximum length for separate tubes exhaust admission must not exceed 16 meters D 8 6 2 Calculation of the concentric conducts length 080 125 mm How to calculate the total lenght of the concentric conducts Determine the total length of the concentric conducts and enter in table 21 line 1 gt Count the number of 90 elbows used multiply by 2m and enter that value in table 21 line 2 Count the number of 45 elbows used multiply by 1 5m and enter that value in table 21 line 3 Count the number of 30 elbows used multiply by 0 4m and enter that value in table 21 line 4 i Do not count terminals an
17. 20608948 14 2Av 1 Front cover 2 Key pad 3 Cold water inlet 3 4 4 Gas connection 3 4 5 Hot water outlet 3 4 6 Support bracket Therm 8000 S 6 720 680 174 2012 09 6 Technical Characteristics and Dimensions 2 7 Appliance overview 6720608948 06 1AL Fig 2 1 Ar admission adaptor not included 10 Over heat prevention temperature limiter 2 Condensing Heat Exchanger 11 Observation window 3 Heat exchanger 2 Ignition electrodes 4 Primary fan Mixer 13 Backflow temperature sensor 5 Control unit 14 lonization sensor 6 Flue Gas Adaptor not included 15 Secondary air fan 7 Room sealed box temperature sensor 16 Pressure point gas valve 8 CO Co measuring point 17 Gas valve 9 Exhaust temperature sensor 18 Key pad 6 720 680 174 2012 09 Therm 8000 S Technical Characteristics and Dimensions 7 2 8 Electrical diagram Ns a5 a3 a2 T 90 C ur xod ls SC ao iu di M i Q2 S ls N N o o LAT I 6720608917 02 1AL Fig 3 Electrical scheme 1 Intlet water temperature sensor Outlet water temperature sensor
18. 6720680 174 2012 09 ZA Condensing Gas Water Heater Therm 8000 S BOSCH Installation and operating instructions e A e Read installation manual prior to installation of this unit Read user manual before putting this unit in operation Observe the warnings in the manuals The installation room must fulfill the ventilation requirements Installation by an authorised person only Index 5 9 Installation of the exhaustion accessory and 1 Safety information and symbology admission of air 19 1 1 Key to symbols 5 10 Filling the condensate trap 20 1 2 Safety information 6 Admission exhaustion accessories 2 Technical Characteristics and Dimensions 4 accessory 80 125 mm o ooooooo 22 2 1 Declaration of conformity with relevant EEC 6 1 Admission exhaustion accessories regulations 4 diameter in mm 22 2 2 Explanation of Model Code A 6 2 Fitting instructions 23 2 3 Package contents 4 6 3 Explanation of Symbols on 2 4 Description ofthe heater 4 Fitting Diagrams ooooccccccccccoo 23 2 5 Optional accessories 4 6 4 Approved flue systems 24 2 6 Dimensions wD 2 7 Appliance overview 6 2 8 Electrical diagram 7 7 Electrical connection 27 2
19. 9 Technical data 8 7 1 Connection 27 2 10 Operational instructions 9 7 2 Power cable 52 suas 27 7 3 Position of the fuses in control unit 28 2 Regulation sissano Arte rene 9 8 Installation instructions 28 8 1 Factory regulations 28 4 Operating instructions eee 8 2 Measuring gas pressure 29 4 1 Description LCD Display 8 3 Adjusting CO2 carbon dioxide 29 4 2 Before operating the appliance 8 4 Program values 000000eeees 32 4 3 Connect and disconnect the appliance 11 8 5 Control board diagnostics 33 4 4 Water temperature setting 11 8 6 Fan speed adjustment 33 4 5 Operation sce ot Adan eere 11 4 6 Registration of remote control accessory n 7 709003756 11 9 Maintenance 37 4 7 Remote control operation 9 1 Periodic maintenance tasks 37 accessory n 7 709003756 12 9 2 Verify the fuses in the control board 38 4 8 Program button 9 3 Condensing heat exchanger unit 38 4 9 Priority function 9 4 Startup after maintenance 40 4 10 Purge the appliance 4 11 Reset button ve cei 4 12 Locked condition 10 Problemsolving oooo oooomoo 41 10 1 Problem Cause Solution 41 5 Installation instructions 5 1 Important remarks 11
20. Functionalscheme 45 5 2 Selection of location for installation 15 5 3 Minimum distances 15 5 4 Installation of fixing bracket 16 12 Environmental protection 46 5 5 Installation 5 6 Water connection 5 7 Connecting the condensate water 13 Warranty Terms eere 47 drain to the appliance 18 5 8 Gas connection 18 6 720 680 174 2012 09 Therm 8000 S Safety information and symbology 3 1 Safety information and symbology 1 1 Key to symbols Warnings A A Keywords indicate the seriousness of the hazard in terms of the consequences of not following the safety instructions NOTICE indicates that material damage may occur Warnings in this document are framed and identified by a warning triangle which is printed on a grey background Electrical hazards are identified by a lightning symbol surrounded by a warning triangle CAUTION indicates that minor to medium injury may occur WARNING indicates that serious injury may occur DANGER indicates possible risk to life Important information Important information in cases where there is no risk of personal injury or material losses is identified by the symbol shown on the left It is bordered by horizontal lines above and below the text Additional symbols Symbol Meaning gt astep in an action sequenc
21. The control unit detects the heating temperature via a NTC resistor located in the hot water exit tube and the temperature limiter located in the heat exchanger If it detects an excessive temperature it provokes a security cut off Restarting after security cut off To restart the appliance following a security cut off Pressthe reset key Fig 19 3 Regulation Any local by laws and regulations pertaining to installation and use of gas heated appliances must be observed Please refer to the laws that should be attended in your country D The installation may only be carried out by registered installers and shall comply with the requirements of SANS 10087 1 4 Operating instructions 6720608158 201AL Fig 4 1 Main switch ON OFF Reset key Program key LCD panel Temperature increase key programming key 6 Temperature decrease key programming key 7 LED herm 8000 S 6720680 174 2012 09 10 Operating instructions 4 1 Description LCD Display N CAUTION Do not use any cleaning agressive or corrosive agents to clean the window Fig 9 Flame indicator Fig 10 Solar mode indicator f i AAN N n UL YA Te 72060815879 1AL Fig 5 Power bar indicator input Fig 6 Temperature indicator Fig 7 Error indicator Fig 11 Remote control indicator 4 2 Before opera
22. and surrounding air gt Toavoid corrosion the combustion air and surrounding air must be free from harmful substances e g halogenated hydrocarbons which contain chlorine and fluorine compounds Information to the client Inform the client about how to operate and handle the heater This appliance is not intended for use by persons including children with lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Children should be supervised to ensure they do not play with the appliance Caution clients against performing modifications or repairs themselves Therm 8000 S 6 720 680 174 2012 09 4 Technical Characteristics and Dimensions 2 Technical Characteristics and Dimensions 2 1 Declaration of conformity with relevant EEC regulations This appliance fulfills European directive requirements 90 396 EEC 92 42 EEC 73 23 EEC 89 336 EEC and corresponds to the specifications described in the corresponding EEC certificate of proof Model GWHC 27 CTDE Category lz Type C Table 2 2 2 Explanation of Model Code GWHC27 C T D E 23 30 Table 3 GWH Gas water heater C Condensing 27 Capacity Liter per minute C Room sealed box T Thermostatic D LCD E Electric ignition 23 Appliance adjusted for Natural Gas 30 Appliance adjusted for LPG 2 3 Package conten
23. aracteristics panel have been checked D Liquid gas Butane heaters G30 are factory sealed for delivery after the values on the characteristics panel have been checked Heaters should not be ignited when the connections pressure is less than 1 5 kPa more than 2 5 kPa 6720680 174 2012 09 Therm 8000 S Installation instructions 29 DANGER Thefollowing operations must be carried out by a qualified technician A 8 2 Measuring gas pressure Confirm gas pressure after installation Connecting manometer Shutoff gas supply Remove the front cover ver Fig 23 gt Loosen screw inside left test point fitting do not remove and connect manometer tube to test point d m J EHS oL A a cel Fig 48 Gas pressure test port left tapping Static Pressure Test Turn gas supply back on Record static gas pressure reading in table 8 Static Gas Pressure Reading Pressure Date Operating Gas Pressure Reading Pressure Date Table 8 Operating Pressure Test Press ON OFF button to turn off the appliance Press and hold Program button and press ON OFF button to turn appliance ON Fig 49 6720608158 161AL Fig 49 Gas tunning mode Assoon as 188 is displayed release Program button and the display reads P2 Press E o Py until P1 appears D For inlet gas p
24. assemblies can be easily detached and synthetic materials are marked accordingly The assemblies can therefore be sorted out and passed on for recycling or disposal 6720680 174 2012 09 Therm 8000 S Warranty Terms 47 13 Warranty Terms Imported by Chefs Pride cc a division of The GAS Company 25 Jakaranda Street Hennopspark Centurion South Africa Tel 27 12 653 3295 Bosch Gas Water Heaters have been thoroughly tested at the factory and fulfills all standards valid in the country Chefs Pride provides warranty for this model and its components for the period of 24 months from the date of the invoice for any factory or material fault with the following exceptions When the installation of the product was done by unauthorized people When the appliance or parts present changes or malfunctions due to misuse of unauthorized people When the operation and use of the appliance is done under conditions which are not allowed in the installation or user s manual When there are changes to the warranty terms and breakage of seals When damages are caused by transportation or accidents When damages are caused by inadequate gas or water pressure When damages are caused by lack of maintenance or by installing non original parts Chefs Pride does not take over any responsibility for personal damage property damage or product damage caused by installations done by unauthorized persons Therefore we
25. be in the center of the flue pipe approx 40mm inserted Avoid air gaps between probe and measuring port as they can alter readings While holding the Program P button press the ON OFF button to turn ON the heater see Fig 51 6720608158 381AL Fig 51 While holdingthe Program D button press the ON OFF button to turn ON the heater As soon as 1188 flashes on the display release the Program button The display should now read P2 Press or y button until P1 appears on display Measuring CO Combustion cover Installed gt Open all hot water taps to achieve a flow rate of at least 15 m 1 tub and 2 sinks should be sufficient If heater display reverts back to P2 open more hot water fixtures to allow sufficient flow Press EA until P1 reappears on the display Record the CO reading in P1 in the table 10 below Analyzer reading may take several minutes to stabilize Press button until P2 appears Unit will ramp down to low fire and the water flow should decrease Program CO values P1 P2 Table 10 Adjusting CO Note P1 adjustment will change the P2 reading Confirm the P1 value BEFORE adjusting the P2 level D IfP1 CO level is out of range Loosen yellow painted philips screw Fig 52 pos 1 and cover should rotate down Fig 52 pos 2 revealing a recessed brass slotted screw Fig 52 pos 3 Turning the slotted screw counter clock
26. bes must be used according to the applicable regulations Geen The accessory provided must be used to connect the Leave min 10mm air gap gt heater to the gas main Tighten the threaded head on the gas inlet Fig 28 pos 1 1 2 x 3 4 PVC Reduce 1 and use the copper Fig 28 pos 2 extremity to solder the pipe to the main Fig 28 pos 3 Trap require Fig 27 Appliance drain installation 6720680 174 2012 09 Therm 8000 S Installation instructions 19 6720608948 041AL Fig 28 1 Gas piping 5 9 Installation of the exhaustion accessory and admission of air D For the installation of the accessory they should be following the manufacturer s instructions Itis mandatory the installation of the accessories for the exhaustion admission of air cod 7 709 003 733 system of admission exhaustion 280 80 mm 5 9 1 Installation of the accessory of admission of air To install the accessory of admission of air proceed as follow gt Putthe gasket between the appliance and the accessory gt Fig 29 1 Tighten the 4 screws of the accessory of admission of air Fig 29 2 6720608920 24 1AL Fig 29 5 9 2 Installation of the exhaustion accessory 80mm To install the accessory of the exhaustion accessory proceed as follow Put the gasket between the appliance and the accessory gt Fig 30 1 Ther
27. c pipe with 2000mm 280 125 7719002765 AZB607 1 Elbow 90 880 125 7719 002 766 AZB608 1 Elbow45 080 12b o 77190767 AZB832 1 Elbow30 080 12b 771900768 AZB 919 Concentric vertical terminal 080 125 with 1393 mm adapter with measuring point 7719002849 AZB 371 Adapter for flat roof 7716050046 AZB 921 Adapter with measuring point 7719002851 AZB 922 Converter from 080 125 to 080 80 with measuring points 7719 002 852 AZB 931 Vertical adapter with measuring point 7716 780 184 Table 5 Flue accessories 080 125 Type Descriptiom TINO Accessories for the exhaustion admission of air 80 80 7 709 003 733 AZ 381 Elbow 90 080 7716 050 056 AZ 382 Elbow 45 080 7716050057 AZ 383 Pipe 280 of 500mm 7716050058 AZ 384 Pipe 280 of 1 000mm 7716050059 AZ 385 Pipe 280 of 2 000mm 7716050060 AZ387 Terminal 280 7716050062 AZ378 Vertical terminal 7716050053 Table 6 Flue accessories 980 080 6720680 174 2012 09 Therm 8000 S Admission exhaustion accessories accessory Y 80 125 mm 23 6 2 Fitting instructions Thepermissible maximum flue air pipe length Lmax for the various possible flue configurations is speci fied in the tables starting on chapter 8 6 Ifthe concentric flue air pipe enters a chimney below ground level the appliance may register a fault and shut down in cold weather due to ice formation For that reason such flue configurations should be avoided 6 3 Explanation of Symbols on
28. cket is level only then open the holes Fix the fixing bracket to the wall using the screws and plugs provided 6720608913 05 1AL Fig 22 Fixthe fixing bracket Remove appliance from packaging Ensure that all indicated parts are included Removethe plastic caps from the gas and water connections Loosenthe two Philips head screws located on bottom rear of cover Fig 23 Fig 23 Loosen the two screws 6720680 174 2012 09 Therm 8000 S Installation instructions 17 Lift front cover panel upward and remove 5 6 Water connection Mark the hot and cold water pipes in order to avoid confusion Fig 24 Fix the appliance in a vertical position CAUTION Fig 25 y Neverrestthe heater onthe gas or water 1 Hotwater connections 2 Cold water Makethe hot and cold water connection Foreassorinstllatienitisrecammended Inorderto prevent problems caused by sudden inlet that the water be connected followed by the pressure changes the inclusion of an anti return valve is raskorthe connections advised when installing the appliance Make sure that connections doesn t obstruct the condensate trap cover Fig 26 pos 1 removal Therm 8000 S 6 720 680 174 2012 09 18 Installation instructions 5 7 Connecting
29. d first elbow Concentric conducts 1 Straight section length __x1 EE 2 90 elbows qty _x2 BEEN 3 45 elbows qty MA A 30 elbows qty x07 _ 4 Total equivalent vent length ree Table 21 Example Concentric conduct e Aunits of 1m straight sections e unit of 1m straight section Total length 5 meters 2 90 elbows Example table Concentric conduts 1 Straight section length 5x1 5 2 90 elbow qty 11 x2 2 3 45 elbow qty 0x15 0 4 30 elbow qty 0x05 0 5 Sub total 7 Table 22 Note Do not count terminal and first elbow D 8 6 3 Adjusting fan speed After obtaining the total sum of the conducts proceed as follow Press ON OFF button into OFF Pressand hold Program button and press ON OFF button to turn appliance ON see Fig 54 Total maximum length for concentric conduts must not exceed 8 meters 6720608158 36 1 AL Fig 54 Assoon as 188 is displayed release Program button and the display should read P2 Press onetime a to access the program P2 In the LCD display is visible the attributed value factory value 12 Press E or g to choose the fan speed suitable with your installation see tab 23 for separate tubes admission exhaust Y 80 80mm or table 24 for concentric conducts 80 125 mm Press and hold 5 sec Program button D until the display flashes selected value is memorized
30. e gt areference to a related part in the document or to other related documents alistentry alist entry second level Table 1 1 2 Safety information If you smell gas Close the gas valve gt Open the windows gt Donot operate any electrical appliances or switches on off Extinguish any fire Gotoa different location and call the gas supplier or an authorised technician If you smell combustion gases Turn off the heater p gina 11 Open doors and windows Notify a gas fitter Installation modifications The installation may only be carried out by registered installers and shall comply with the requirements of SANS 10087 1 Theappliance must be installed along with alow pressure gas regulator Theassembly and modifications during the installation of the heater can only be performed by an authorised installer Donotmodify the pipes which conduct combustion gases Donotclose or reduce air circulation vents Maintenance Wereccomend to have the system regularly serviced in order to ensure that it functions reliably and safely The installer is responsible for the safety and environmental compatibility of the installation Theheater must be serviced annually Only original spare parts must be used Explosive and highly inflammable material Donotstore or use inflammable material paper solvents paints etc near the heater Combustion air
31. e components of the appliance A Fig 17 Program key gt Pressbuttons and IV to select temperature to be memorized Press Program button for 3 seconds to save temperature Thetemperature is saved on Program when the LCD panel stops blinking Using Program function In order to select memorized temperature Press Program key LCD shows pre memorized temperature which is now the selected hot water temperature 4 9 Priority function PRIORITY is a function to prevents the user from accidentally altering the water temperature selected by another user D If the appliance is installed in places where freezing risk exists the accessory anti freezing should be used cod 7 709 003 709 4 11 Reset button D If the LCD shows the error symbol A do not shut off power or unplug the heater Follow instructions below to reset error first Record the error code on LCD and consult chapter 10 to identify the error This appliance has a error codes system The visualization of these codes is made through the LCD display Fig 4 pos 4 Therm 8000 S 6720680 174 2012 09 14 Installation instructions 6720608158 31 1AL Fig 18 Error code After following instructions indicated in Troubleshooting section press reset button firmly in order to return heater to normal operation 6720608158 32 1AL Fig 19 Reset butto
32. e condensing models 8 5 1 Working hours To see how many hours the appliance has worked please enter the Diagnostic menu Select the sub mode HO Write the number that shows in the display Select the sub mode H1 Write the number that shows in the display Select the sub mode H2 Write the number that shows in the display After checking the sub modes HO H1 and H2 introduce the values in the table below Working hours Number in HO E Entry Exit into sub modes Od Set point temperature C NumberinHi ____ X 100 EE 1d Inlet water temperature 0C Mio X10 000 R 2d Outlet water temperature 9C 3d Water flow gallons min l min HO H1 H2 Total of hours 4d Gas type LP or NG Table 15 5d Fan speed Hz 6d Burner power 8 6 Fan speed adjustment 7 Maxi kW d aximum power kW 3 After installing the appliance the minimum 8d Back flow temperature d D power fan speed must be adjusted to 9d Exhaust temperature 9C 1 compensate for variation in vent pipe length 1F Most recent error failure 2F 2nd most recent error Before adjusting the fan speed it is necessary to verify the Table 14 admission exhaustion system calculating the total lenght of the exhaust pipes and quantity of elbows Therm 8000 S 6720680 174 2012 09 34 Installation instructions Pressure drop equivalence of the conducts and exhaustion accessories Equivalence in meters
33. hot water replace the sensor and cables Check resistance see Fig 3 pos 2 Temperature gt 85 C 3 Clean the water filter any dirty in the faucets and also all the water GD filters of the installation 4 In areas where water has a high mineral content periodic descaling may necessary Cold water temperature sensor 1 Check connector on wires coming from top of watervalve for a secure em lt a Tout connection 6 2 Sensor may trip if water temperature drops below 2 C Protect lt gt heater from freezing conditions as any damage due to freezing conditions is not covered under warranty a a 3 Check sensor Exhaust temperature sensor 1 Clean and check heat exchanger d ap the appliance will close the 2 Clean and check condensing heat exchanger burner and lock if it gets over 3 Reduce maximum power R 90 C only applied for 4 Reduce water temperature condensing unit gt CD Backflow temperature sensor 1 Check inlet outlet vent pipes over 130 C 2 Check if secondary fan connections are disconnected 6 The appliance will close the 3 Check if venting specifications are met Long vent lengths venting lt gt burner and lock non volatile with more than three elbows blocked vent or combination venting may cause this failure IN 4 Call the Technical Assistance Overheat sensor ECO open 1 Disconnect power supply cord and check wire connections on the m m Circuit
34. hould be carefully cleaned and tested for leaks To avoid damage from excess pressure in the valve gas regulator this should be carried out with the gas valve shut Ensurethatthe appliance installed is suitable for the type of gas provided Ensurethattheflow and pressures for the regulator installed are those indicated for the consumption of the appliance see technical data in table 4 Alow pressure gas regulator must be installed with the appliance in accordance with SANS 1237 2007 5 2 Selection of location for installation Considerations relevant to location Fulfil requirements specific to each country Theheater must not installed above a source of heat Respectthe minimum installation measurements indicated in Fig 21 Theappliance must not be installed in sites where the ambient temperature is susceptible to drop below 0 C Where there is a risk of freezing disconnect and empty the appliance chapter 4 10 D Assurethat exists a socket for the electric connection at the place were the appliance will be installed Assure that exists at the place of the installation a sewer point for the condensed waters If the above conditions are not possible it s mandatory to use the kit anti freeze n 7 709 003 709 Combustion air The air admission grill must be located in a well ventilated area Toavoid corrosion products such as solvents inks inflammable gases glue or domestic
35. icensed gas technician properly purge air out of the gas line leading to the water heater 5 Check three wire connections on the lower front of the heat exchanger are secure 6 Check venting specifications are met Improper venting may cause premature failure of the flame sensor rod T Check that the minimum power fan speed has been adjusted to the proper value See chapter 8 6 8 Observe inside the viewing window of the heat exchanger when a hot water tap is opened Sparking should be followed by a steady blue flame If flame is unstable yellow with proper gas pressure confirm CO2 readings lonization failure during 1 Check gas type m e Operation 2 Check gas pressure 6 3 Check three wire connections to ignition group on the lower front of lt gt the heat exchanger are secure 4 Verify that venting specifications are met Improper venting may am aD cause premature failure of the flame sensor rod 5 Check that the minimum power fan speed has been adjusted to the proper value See chapter 8 6 6 Check and adjust CO2 readings lonization error at standby 1 Loose connection to the flame ionization rod Verify that the thinner a gt ap wire leading from the control unit is securely connected to the set of 6 electrodes located on the lower front of the heat exchanger lt D 2 Flame ionization rod or control unit may be damaged Call the Technical Assistance Gas leakage error gas val
36. in Max Comment P1 Maximum Power N Gas 45 21 N Gas 45 See chapter 8 2 LPG 39 LPG 39 Note reducing P1 values below maximum will reduce maximum power of the appliance P2 Minimum Power 12 12 20 See chapter 8 2 P3 Remote 0 0 6 See chapter 4 6 Controls installed P4 Access to E Od 10f See chapter 8 5 Diagnostic Mode P5 Cascade Mode nO nO CC To activate the cascade mode it s necessary to install the kit cascade cod 7 136 500272 P6 Temperature Unit C oF e See chapter 8 5 P7 Appliance Type Cd Cd nC Condensing Non condensing Condensing Condensing note incorrect setting will cause errors P8 Back light dE dE On dE turns back light off after 60 seconds from last button pushed ON turns backlight on permanently P9 Fan Purge Runs secondary fan and primary fan when P9 is selected by depressing the P button PH Cascading type IC IC SC This menu is only available when cascade mode is selected CC PC Master Slave mode CS CS CM Table 13 6720680 174 2012 09 Therm 8000 S Installation instructions 33 8 5 Control board diagnostics To acess the diagnostic menu proceed as follow Press ON OFF button to turn off the appliance Pressand hold Program button and press ON OFF button to turn appliance ON gt Releasethe button when 188 appears onthe display The display should read P2 when the program button is released If not repeat process Press and release the button on the
37. ing water temperatures When a hot water tap is opened main burner ignites and LCD displays indication 6720608920 35 1AL Fig 14 D 4 6 Registration of remote control accessory n 7 709 003 756 Only a qualified technician is allowed to install the aditional PCB that is supplied with the remote Only after installation of PCB the registration can be made The registration of the remote control must be done near the appliance LCD flashes until selected temperature is reached Hot water tap closed Turn OFF the appliance Fig 4 pos 1 Press and hold the programming key Fig 4 pos 3 press ON OFF button Fig 4 pos 1 to connect the appliance Release programming key only when LCD displays 188 The LCD displays the signal P2 Press key until it displays the signal P3 Press programming key again for about 1 second LCD panel displays one number and one rotating digit The number represents the remote control which is to be registered the first remote control will be registered with number 0 the second with number 1 and so on Therm 8000 S 6720680 174 2012 09 12 Operating instructions Test the remote control in front of the electronic box by simultaneously pressing the y and U control keys B2OSOSTA0A5 2S Fig 15 Activate new control Press both keys until the LCD panel stops flashing and shows the indication
38. m 8000 S 6720680 174 2012 09 20 Installation instructions gt Tighten the 3 screws of the exhaustion accessory gt Fig 30 2 6720608920 25 1AL Tighten the 3 screws of the concentric accessory Fig 31 Concentric accessory 1 Concentric accessory 2 Accessory 8 705 507 042 5 10 Filling the condensate trap Fig 30 5 9 3 Installation of the concentric accessory 080 125 mm To install the concentric accessory proceed as follow Putthe blue gasket provided with the appliance between the appliance and the accessory DANGER N Before the first start up of the appliance after along period of inactivity or whenever it proceeds to the cleaning of the condensate trap Fill the condensate trap with water to prevent that the exhaustion gases enter inthe division where the appliance is installed The condensate trap can be filled before or after connecting the vent pipe 6720680 174 2012 09 Therm 8000 S Installation instructions 21 5 10 1Filling the condensate trap before vent pipe Remove the clip and disconnect the drain tube see Fig 33 installation Fill the condensate trap by pouring approx 14 oz 400ml j of water into the exhaust accessory on the top of the i appliance see Fig 32 el WS X 6720608948 05 1AL Fig 33 Fill the condensate trap b
39. n If the problem persists contact your installer 4 12 Locked condition This condition is only valid for appliances with one or more remote controls installed 6720608920 33 1AL Fig 20 Locked condition Whenever LCD shows e the temperature setting cannot be adjusted because the appliance is in use by a user which already selected a different temperature Appliance will be automatically unlock 5 minutes after closing hot water tap 5 Installation instructions DANGER Explosion Always close the gas valve before doing any work in gas components The installation the electric connection the gas installation the installation of the exhaustion admission conducts as well as the start up must be carried out by a qualified technician The appliance can only be used in the countries mencioned in the type plate CAUTION gt Do not install the appliance where the inlet water temperature is superior to 60 C Insuch cases we recommended the installation of a mixer s valve in the entrance of the appliance as prevention measure LN H H A 6720680 174 2012 09 Therm 8000 S Installation instructions 15 5 1 Important remarks Before installation consult the gas company and current legislation regarding gas appliance and site ventilation Install a gas shut off tap as close to the appliance as possible After connection to the gas main the appliance s
40. or not 1 Check that the sensor is firmly attached to the vertical section of the sensing expected output hot water pipe aie E Status message 2 Ensure that hot water sensor is not placed on any bends in the hot notan error water pipe or misreading may occur 3 Check gas pressure Low gas pressure may prevent the heater from reaching desired output temperature 4 Check supply voltage 5 Possible defective control unit call the Technical Assistance Primary fan rotation too low in 1 Disconnect power supply cord and check wire connections on back m 4p operation side of fan and the two connectors on the control board 2 Check supply voltage lt 3 Check venting specifications are met Long vent lengths venting with more than three elbows blocked vent or combination venting may a m cause this failure 4 Ensure intake and exhaust terminations maintain the required clearances stated in the manual Cross contamination between intake and exhaust may cause the fan to alter its rotational speed 5 Check gas pressure Low gas pressure may cause the fan to change its speed to meet desired temperature 6 Possible defective control unit call the Technical Assistance No rotational speed sensor 1 Disconnect power supply cord and check wire connections on back m em signal from primary fan side of fan and the two connectors on the control board 2 Check supply voltage 3 Possible defective component
41. r s requirements Water filter Close the water inlet supply valve Therm 8000 S 6720680 174 2012 09 38 Maintenance Dismantle the cold water inlet pipe see Fig 55 6720608158 68 1AL Fig 55 1 Motorized water valve 2 Water filter Clean the water filter 9 2 Verify the fuses in the control board To check fuses proceed as follows Remove the front cover see Fig 23 Remove the three screws from the control unit Fig 56 e Fig 57 pos 2 6720608920 38 1Av Removethe six screws from the back cover of the control unit see Fig 57 pos 2 6720608158 78 1AL Fig 57 Fuses position After checking the fuses reinstall all parts in reverse order 9 3 Condensing heat exchanger unit Thecondensing heat exchanger unit must be D checked once a year by a qualified and trained technician If repairs are needed the repairs should be done by a certified technician 6720680 174 2012 09 Therm 8000 S Maintenance 39 6720608000 48 1AL It is mandatory to propely replace the gaskets and o rings D Assemble the condensate unit and all other parts in reverse order of disassembly 9 3 1 Cleaning the condensate trap WARNING Material damage Placea suitable container underneath the appliance before unscrew the condensate trap cover A Fig 58 Condensing heat exchange
42. r unit Condensing heat exchanger unit maintenance Shutoff power Disconnect power cord gt Dismantle all inlet outlet pipes and the condensate tube from the condensing heat exchanger unit Remove the condensing heat exchanger unit from the appliance by pulling it towards you Dismantle all parts for inspection and cleaning 6720608000 53 14L Fig 59 Condensing heat exchanger Check the condensing heat exchanger for any obstruction Flush the condensing heat exchanger unit with water Replace all gasket and o rings To clean the condensate trap proceed as follow Openthe condensate trap cover 6720680174 051 Av Fig 60 Checkand clean the condensate trap with clean water Screw the condensate trap cover 9 3 2 Filling the condensate trap after the maintenance works After the condensate trap maintenance it s necessary to fill it with water Proceed as follow Therm 8000 S 6720680 174 2012 09 40 Maintenance Removethe clip and disconnectthe drain tube see Fig 61 Check water level in the condensate trap see Fig 63 Fig 61 Fill the condensate trap by pouring approx 14 oz 400ml of water into the top of the drain tube To avoid damage to the appliance use a funnel in this operation see Fig 62 Tree
43. ressure adjustment see values in table 9 NOTE While in this mode the appliance will run constantly at maximum power and allow maximum water flow Gas type GN Butane kPa 2 0 3 0 Table 9 gt Turn on high volume of hot water flow at least 15 Um and burner will light If heater display reverts to P2 open more hot water fixtures to allow sufficient flow Press A until P1 reappears on the display gt Operate all other gas appliances on same gas piping system at maximum output Record lowest operating gas pressure reading in table 8 Gas pressures lower than 2 kPa for Natural Gas or 3 0 kPa for Butane will result in insufficient degree rise to the hot water being used reduced hot water volume possible error code faults and must be corrected Check gas pipes dimensions 8 3 Adjusting CO carbon dioxide D The CO2 can only be adjusted by a certified gas technician with a calibrated CO2 analyzer Therm 8000 S 6720680 174 2012 09 30 Installation instructions CAUTION One factor that may affect CO levels is improper gas pressure A When the gas pressure is correct Press ON OFF button to turn off the appliance Remove plastic screw on the exhaust collar as seen in Fig 50 Checkand adjust gas pressure see chapter 8 2 6720608920 181AL Fig 50 Measuring port Insert CO analyzer probe into the measuring port The tip of the probe should
44. s provided with the appliance Substitute dismantled joints and o rings with new ones Only the following lubricants must be used On hydraulic parts Unisilikon L 641 8 709 918 413 Threaded joints HFt 1 v 5 8 709 918 010 9 1 Periodic maintenance tasks Functional checks Ensurethatall safety regulatory and checking elements are in good working order Heat exchanger Inspect the heat exchanger gt Ifitis dirty Dismantle the chamber and remove the regulator Clean the chamber with a pressurized water jet gt Ifthe dirt resists soak soiled parts in hot water with detergent and clean carefully If necessary de scale the interior of the heat exchanger and connection tubes Reassemble the heat exchanger using new joints Remountthe regulator on its support Burner WARNING Burner damage The burner surface is very fragile N Donottouch the burner surface take extra caution during the maintenance operations Inspectthe burner annually and clean as necessary Checkthe burner trought the observation window if there are liquids or fissures Verify if the flame is stable and blue without signs of yellow flames D Verify CO levels ver chapter 8 3 and correct it if necessary Yellow burner flames are an indication of improper combustion Assure that the installation of the exhaustion conduct and of admission of air fullfill the manufacture
45. s are secure 5 Unplug heater and check the wiring harness connections on the control board Exhaust temperature sensor 1 Check exhaust temperature sensor connection see Fig 2 pos 9 m m happens if sensor is 2 Check sensor lt 100 ohm short circuit disconnected or in short circuit 3 Check P7 mode The correct selection is Cd mp or appliance selection on P7 mode is not correct Backflow temperature sensor 1 Check backflow temperature sensor connection see Fig 2 pos 13 defect happens if sensor is 2 Replace exhaust temperature sensor 0 disconnected or short circuit C Outlet temperature sensor fault 1 Check red wire connections at hot water temperature sensor Clean m m Temperature below 0 C or terminals with an eraser If badly corroded replace sensor and wire 6 above 98 C harness umm 2 Sensor may trip if water temperature drops below 0 C to protect heater from freezing conditions Any damage due to freezing conditions is not covered under warranty 3 Clean the water filter any dirty in the faucets and also all the water filters of the installation 4 In areas where water has a high mineral content periodic descaling may necessary 5 Check sensor Table 25 By installer or service technician only Therm 8000 S 6720680 174 2012 09 42 Problem solving Display Cause Solution SC Outlet temperature sens
46. safety mechanisms have been rigorously tested in the factory and are ready for use 7 2 Power cable The appliance is provided with a labeled power cord and CAUTION Fuse protection earthed mains plug A The appliance should have an independent connection to the electricity D If the power cable gets damaged it must be mains protected by a differential 30 mA replaced by a genuine spare part switch and be earthed In areas subject to frequent storms a storm protector should be installed Therm 8000 S 6720680 174 2012 09 28 Installation instructions 6720608913 09 1AL Fig 45 Power cable connections 7 3 Position of the fuses in control unit To check fuses proceed as follows Remove the front cover see Fig 23 Remove the three screws from the control unit Fig 46 e Fig 47 pos 1 Fig 46 Remove the six screws from the back cover of the control unit see Fig 47 pos 2 Check the fuses in the printed circuit board see Fig 47 pos 3 6720608158 78 1AL Fig 47 Fuses position After checking the fuses reinstall all parts in reverse order Fig 47 pos 3 8 Installation instructions 8 1 Factory regulations D Sealed parts must not be interfered with Natural gas Heaters designed for Natural gas H G 20 are factory sealed for delivery after the values on the ch
47. st temperature at minimum power C 28 General Data Voltage V 230 Frequency Hz 50 Maximum power consumption W 116 Type of protection IP X4D Ambient temperature permited C 0 50 Noise db A 59 Efficiency 96 100 Weight excluding packaging kg 34 Table 4 6 720 680 174 2012 09 Therm 8000 S Regulation 9 2 10 Operational instructions Hot water Open the gas and water valves and ensure that all joints are hermetic Place the principle switch Fig 4 pos 1 in the operating position chapter 4 3 so that the appliance is quickly ready for use When a hot tap is opened the water flow sensor should be in Fig 2 pos 2 send a signal to the control unit This signal initiates the following The fan starts working Simultaneously sparks are produced and the gas valve opens The burner lights The ionisation electrode controls the state of the flame The water temperature is controlled automatically by the sensors controllers according to the temperature selected Security cut off when safety period is surpassed If a flame is not achieved within the stipulated security period 35 sec a security cut off will occur see The presence of air in the gas inlet pipe when the appliance is used after long periods of inactivity for example may delay ignition In this case if the attempts to ignite go on too long the security mechanisms prevent operation Security cut off due to excessive water heating
48. ting the appliance CAUTION N Theinitial startup of the heater must be realized by a qualified technician who will provide the client with all the information necessary for its correct usage Confirm thatthe gas type of the heater matches the gas supply you will be connecting the heater Open gas valve Check for gas leaks at all joints Fig 8 Locked condition indicator only with remote control 6720680 174 2012 09 Therm 8000 S Open water valve D Check for water leaks at all joints 4 3 Connect and disconnect the appliance Connect Tostart the appliance press the On Off button 6720608158 211 AL Fig 12 Disconnect gt To shut down the appliance press the On Off button again 4 4 Water temperature setting D The temperature value indicated on the LCD panel corresponds to the water temperature at the appliance outlet To regulate the emitted water temperature Press the or y until the desired value is obtained 5720608158 221AL Fig 13 Operating instructions 11 Once the desired temperature is set open the hot water tap D 4 5 Operation Turn ON the main swicth and the appliance is ready to work These appliance has an electronically controlled gas valve that modulates the burner input in response to both varying hot water flow rates and or changes in any incoming and outgo
49. ts Gas heater Support elements Heater documentation 2 4 Description of the heater e Heater for wall mounting High power pre mix compact burner with low NOx emissions Modulating Gas Valve with constant gas air ratio control CD panel with back light Failure codes for easy diagnostics and repair Electronic ignition Modulating water valve Cold water temperature sensor Water flow sensor Hotwater temperature sensor Safety devices Flame failure device ionization flame rod sensor Back flow temperature sensor Inlet temperature sensor Outlet temperature sensor Room sealed box temperature sensor Over heat prevention temperature limiter Power supply 230 V 50 Hz P X4 protection against water drops 2 5 Optional accessories e Gas conversion kit NG Code n 8719 002 460 Freeze prevention kit Code n 7 709 003 709 Outdoor kit Code n 7 709 003 732 Cascading kit Coden 7 736 500272 Wireless remote control to operate with the appliance Code n 7 709 003 756 High temperature kit Code n 7 736 500 605 6720680 174 2012 09 Therm 8000 S Technical Characteristics and Dimensions 5 2 6 Dimensions V i i o li A d 166 52 131 452 406 GE 1 230 _ KN NAAR AOR TA RON 775 705 BAA NEA NA AA ANA AD AeA A NN AN 67
50. ured Natural gas Max input P1 from 7 896to 8 4 250 ppm Min input P2 from 2 0 to 2 4 lt 60 ppm Butane Max input P1 from 9 2 to 10 lt 250 ppm Min input P2 from 2 0 to 2 6 30 ppm Note Values above are for climate controlled conditions Inputs such as gas pressure heating value of the gas humidity and temperature of combustion air all impact CO and CO values Changes in these inputs can result in different CO and CO values on the same appliance Table 11 CO CO target numbers End of adjustments Record the final values in table 12 Program CO values measured Date P1 96 P2 96 Table 12 Reassemble all parts in reverse order Return slotted screw cover to original position and tighten the philips screw Fig 52 Reinstall Torx protection cover Fig 53 Remove CO analyzer probe and reinstall flathead screw with gasket in exhaust collar Press ON OFF button to turn OFF the heater Press ON OFF button to turn ON the heater Heater is ready for normal operation Therm 8000 S 6720680 174 2012 09 32 Installation instructions 8 4 Program values EE This section describes details on programming the appliance CAUTION Misadjusted program values For most applications the factory default values will provide Si lead to SE malfunction errors robust and stable operation ano Service Calls Program Description Factory default M
51. ve 1 Disconnect power supply cord and check wire connections on gas D lt p circuit not closing properly valve and the two connectors on the control board j 2 Flow water out of a hot water tap above the minimum activation point TD 1 9 1 m Measure voltage at the gas valve wire plug connection The i voltage should measure 24VDC between the left pair of wires and 24VDC between the right pair of wires when the unit is operating If voltage is not proper call the Technical Assistance 3 Gas valve may be defective call the Technical Assistance Table 25 By installer or service technician only 6 720 680 174 2012 09 Therm 8000 S 11 Functional scheme later flow gt 0 5 gpm gt 1 9 l min see WE calc we See error code table Fan speed correct lonization off Appliance Temp limiter closed J ready to SU No Temp sensors ok NO D Pb Waiting lt lt Fan speed MG time of 10s YES s OKT Z Over heat protection ok N passed s open the gas INPUTS feet veo No P NO D NO FANSPEED La P WATER TEMP Se 7 WATERFLOW 1si 2nd Bro E alza Safety time afety time of yes Safety time lt a gt a e passed d s passed OUTPUTS uc SE no FANSPEED WATERFLOW ae T3 Motwater L delivered at i Neelacted temp YES 28 N See error code table ET S e
52. wise will raise P1 CO levels Turning the slotted screw clockwise will lower P1 CO levels D After bringing the P1 CO2 readings in proper range press the button to enter the P2 mode Adjustments to the slotted screw P1 will also change P2 CO levels 6720680 174 2012 09 Therm 8000 S Installation instructions 31 Verify CO readings in P2 mode 6720608158 971 AL Fig 52 Adjusting P1 CO level If P2 CO level is out of range Remove yellow painted 40 Torx cover from the front of the gas valve Fig 52 A plastic 40 Torx screw will be revealed Turning the plastic 40 Torx screw counter clockwise will lower P2 CO levels Turning the plastic 40 Torx screw clockwise will raise P2 CO levels Vote This screw adjustment is very sensitive and should be made in small increments It may take several minutes for readings to stabilize D 6720608158 38 1AL Fig 53 Adjusting P2 CO level Verify both P1 and P2 CO readings are within the ranges specified in table 11 Repeat steps 1 and 2 as necesssary until CO values are within the specified ranges As soon as the levels of CO2 are correct verify the values of CO corresponds to the limits of the table 11 If the values exceed the limits it is necessary to verify the ventilation system and heat exchanger M x CO level CO2 range 96 meas
53. y pouring approx 14 oz 400ml of water into the top of the drain tube To avoid damage to the appliance use a funnel in this operation see Fig 34 Fig 32 Filling the condensate trap at start up 5 10 2Filling the condensate trap after vent pipe installation Please proceed as follows Remove front cover see Fig 24 Open the four clips and remove the combustion cover After appliance has been out of use for a long time or after cleaning the siphon refill the condensate trap with water Therm 8000 S 6720680 174 2012 09 22 Admission exhaustion accessories accessory 80 125 mm 6 Admission exhaustion accessories DANGER Make T that S n accessory 80 125 mm connections are tighten sealed Failure to follow this requirement may 6 1 Admission exhaustion accessories diameter cause dangerous exhaust gases to enter in mm living space which may result causing personal injury or loss of life Once is done the connection of the vent pipes it always necessary to verified and guaranteed that is sealed 6 1 1 Concentric pipe admission exhaustion 080 125 mm Type Description TINO AZB 918 Horizontal basic Kit with 1300mm 280 125 7719 002 848 AZB 604 1 Concentric pipe with 500mm 080 125 7 719 002 763 AZB 605 1 Concentric pipe with 1000mm 280 125 1719002764 AZB606 1 Concentri
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