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Description

Unit

SGS 28

SGS 30

SGS 50

SGS 60

Supply voltage
(-15%, +10% VAC)

volts

230

Mains frequency (

1Hz)

IP class

IP 20

Description

Unit

Value

Maximum mains pressure of
cold water supply (vented)

kPa (bar)

800 (8)

Maximum mains pressure of
cold water supply (unvented)

kPa (bar)

550 (5.5)

Maximum mains pressure of
the protected cold supply
setup

kPa (bar)

500 (5)

T&P overflow pressure

kPa (bar)

700 (7)

T&P overflow temperature

°C

Description

Unit

SGS 28

SGS 30

SGS 50

SGS 60

Load profile

XXL

Energy Efficiency Class
(Energy Label)

Energy Efficiency

Daily Electricity Consumption

kWh

0.251

0.254

0.255

0.256

Daily Fuel Consumption

kWh GCV

26.501

26.552

26.562

26.632

Mixed Water 40°C (V40)

ltr.

1255

∞

Additional Load Profile

3XL

Energy Efficiency

Daily Electricity Consumption

kWh

0.295

0.296

Daily Fuel Consumption

kWh GCV

52.051

52.162

Mixed Water 40°C (V40)

ltr.

559

601

106

Installation, Maintenance and Service part

Содержание BFC-120

Страница 1: ...0311753 Innovation has a name Installation User and Service Manual Condensing High Efficiency Gas Solar Water Heater SGS 28 30 50 60 80 100 120 SGS 3017 Changes Reserved...

Страница 2: ...A O Smith UK Unit B8 Amstrong Mall Southwood Business Park Farnborough Hampshire GU14 0NR www aosmith co uk A O Smith Water Heaters is a trading name of Advance Services Sales Ltd Reg your installer...

Страница 3: ...manual use other than in accordance with the General Conditions registered at the Chamber of Commerce For more information refer to the General Conditions These are available on request free of charg...

Страница 4: ...boilers of rated inputs between 70 kW net and 1 8 MW net 2nd and 3rd family gases BS 6700 Design installation testing and maintenance of services supplying water for domestic use within buildings and...

Страница 5: ...70 5500 AB Veldhoven The Netherlands Telephone 0870 AOSMITH free 0870 267 64 84 General 31 40 294 25 00 Fax 31 40 294 25 39 E mail info aosmith nl Website www aosmith co uk In the event of problems w...

Страница 6: ...6...

Страница 7: ...ibes the correct installation and maintenance procedures Target group The information in this manual applies to three target groups users installation engineers service and maintenance engineers The U...

Страница 8: ...ed special attention Note A note gives more information on a topic Caution Obey the caution instructions to prevent damage of the water heater Warning Obey the warning instructions to prevent danger o...

Страница 9: ...User part 13 1 Introduction 15 2 Safety 17 3 Interface 19 3 1 Operator interface 19 3 2 Explanation of icons 19 3 3 Control switch 20 3 4 Buttons 20 3 5 PC connection 21 3 6 Status of the water heater...

Страница 10: ...am 30 4 3 7 Adding times to a week program 33 4 3 8 Deleting times from a week program 34 4 3 9 Extra period 35 4 3 10 Settings 37 Installation Maintenance and Service part 41 5 Introduction 43 5 1 Ab...

Страница 11: ...Preparation 66 7 8 2 Mains power 66 7 8 3 Optional electrical connections 67 7 8 4 Electrical connection of the solar heating system 68 7 9 Commissioning 70 7 9 1 Filling 70 7 9 2 Procedure for check...

Страница 12: ...93 10 3 Gas side maintenance 93 10 3 1 Clean the burner 93 10 3 2 Clean the heat exchanger 93 10 4 Solar collector maintenance 94 10 5 Finalization 94 11 Troubleshooting 95 11 1 Errors and warnings 95...

Страница 13: ...User part 0311753_SGS_28 120_II_UKUK_V2 0 2017 05 03 13...

Страница 14: ...14...

Страница 15: ...rough the water inlet 1 The heated water leaves the tank at the top through the hot water outlet 2 To operate the water heater the operator interface 3 and control switch 4 are used Fig SGS water heat...

Страница 16: ...16 User part...

Страница 17: ...er Some propellants bleaching agents and degreasing agents etc disperse of explosive vapors and or cause accelerated corrosion If the water heater is used in a room where such substances are stored or...

Страница 18: ...18 User part...

Страница 19: ...main menu see section 4 3 The service program This chapter is specifically intended for the service and maintenance engineer and installation engineer In this manual the display of the operator inter...

Страница 20: ...he water heater and the mains power supply 3 4 Buttons The use of these buttons is explained with the help of the figure showing the main menu see section 4 3 The buttons are Buttons for UP and DOWN E...

Страница 21: ...3 6 1 2 ON In this mode the water heater continually responds to the hot water demand The figure shows the display with the following information line one the text ON line two the time the day and T1...

Страница 22: ...ne three the next scheduled switch on time line four displays the text PERIOD ACTIVATED In all modes the temperature may at any moment drop below the desired temperature The water heater then enters a...

Страница 23: ...warning This message appears when the anode protection is no longer active If the message appears you must contact your service and maintenance engineer Note The water heater continues to function wh...

Страница 24: ...24 User part...

Страница 25: ...iance is now in ON mode If there is a heat demand the appliance will run through the heating cycle see section 4 1 1 If the heating cycle is not run there is no heat demand if this is the case Tset wi...

Страница 26: ...d are dimmed The icon is activated After a number of seconds pre glow the gas control valve is opened and ignition takes place The icon is activated The message IGNITION appears After ignition the fla...

Страница 27: ...ater heater will heat the water to 20 C Tset before dropping back to mode OFF Caution The anode protection remains active when the OFF mode is selected Note These values of 5 C and 20 C cannot be adju...

Страница 28: ...spond to demand only during pre programmed periods see section 4 3 4 Outside those periods only frost protection is active EXTRA PERIOD Select this option to overrule OFF mode or PROG mode i e Week pr...

Страница 29: ...crease the value Confirm with ENTER After confirming the appliance enters ON mode Note If the preset temperature is higher than the current water temperature then the appliance might not immediately s...

Страница 30: ...ing the appliance s standard week program see section 4 3 6 Adding times to a week program see section 4 3 7 Deleting times from a week program see section 4 3 8 4 3 5 Starting and stopping the week p...

Страница 31: ...the mode of the program controlled pump 4 3 6 1 Week program setting the switch on time Bring the cursor to SU Confirm with ENTER The day indicated by blinks Use and to set the desired day In the exam...

Страница 32: ...setting the program controlled pump If required a pump can be controlled during the period Use and to set PUMP ON The pump ensures a regular circulation of hot water in the hot water pipes You can sk...

Страница 33: ...program an extra period in which the switch on time is set to 18 00 and the corresponding switch off time to 22 00 The water temperature will be set to 75 C and the pump will run continuously Proceed...

Страница 34: ...AM OVERVIEW Confirm with ENTER Scroll with to PROGRAM OVERVIEW Confirm with ENTER The display shows the menu for the week program Scroll with to DELETE Confirm with ENTER To warn you that you are now...

Страница 35: ...the active week program or without taking the water heater out of OFF mode frost protection active If the water heater is running under an extra period then this is indicated in the display with the t...

Страница 36: ...its of the switch off period Setting the switch off time Use and to set the hours In the example this is 012 Confirm with ENTER The cursor moves to the minute digits which will blink Use and to set th...

Страница 37: ...and time Displayable water heater specifications this category is only relevant to the installation engineer and or service and maintenance engineer Regulation interval water temperature Ignition spee...

Страница 38: ...de Sunday Scroll with and to the desired day Confirm with ENTER The day has been set The display shows the submenu for adjusting the time The cursor moves to the hour digits which will blink Scroll wi...

Страница 39: ...ctrical data see section 12 1 Call up the menu to display the water heater specifications as follows SETTINGS Confirm with ENTER Scroll with to SPECIFICATIONS Confirm with ENTER The display shows the...

Страница 40: ...40 User part...

Страница 41: ...Installation Maintenance and Service part 0311753_SGS_28 120_II_UKUK_V2 0 2017 05 03 41...

Страница 42: ...42 User part...

Страница 43: ...s the bottom of the tank through the cold water inlet 14 Once the water heater and the storage reservoir are completely filled with water they are both constantly under mains water pressure When hot w...

Страница 44: ...24 23 22 3 58 19 29 10 8 14 16 18 20 30 21 17 18 20 17 21 30 59 16 Fig Water heater SGS 80 100 120 1 2 5 7 4 6 28 9 11 13 12 15 24 23 22 3 58 19 29 10 8 14 16 18 20 30 21 17 1 Cover 2 Hot water outle...

Страница 45: ...eating the water but only if the temperature of the heating fluid S1 is greater than the temperature measured at the appliance sensor S2 by a given adjustable amount When T1 Tset Tsolar limit heating...

Страница 46: ...Note T1 can rise above Tset However this is only possible if Tsolar limit is increased via the service menu n 46 Installation Maintenance and Service part...

Страница 47: ...nd the flue gas discharge components Make sure that the venting system does not exceed the maximum number of 45 and 90 bends and the maximum pipe length Caution Make sure that the diameter and length...

Страница 48: ...ter The water heater has some safety instructions on its cover The text Read the installation instructions before installing the appliance The text Read the user instructions before putting the applia...

Страница 49: ...nk that are related to safety Safety Description Anti frost S2 S3 5 C The frost protection cuts in The water is heated to 20 C Against overheating of water S2 S3 85 C The high limit safeguard serves t...

Страница 50: ...m flowing backwards from the tank into the cold water supply system The pressure reducing valve protects the water heater against excess mains water pressure refer to the general and electric specific...

Страница 51: ...ystem enters error mode The error is also visible on the display of the water heater 6 3 4 Safety of the solar heating system 6 3 4 1 Expansion vessel The solar heating system must be equipped with an...

Страница 52: ...be recycled When you discard devices at the end of their service life you must obey local legislation related to waste disposal Never discard your old device together with regular waste Put the device...

Страница 53: ...lly to prevent damage to the water heater 7 2 Conditions The water heater is suitable for room sealed and for open combustion For room sealed combustion the air inlet does not depend on the installati...

Страница 54: ...4 Working clearances For access to the water heater it is recommended that the following clearances are observed see figure AA around the water heater s control column and cleaning openings 100 cm BB...

Страница 55: ...the storage tank space for anode replacement 100 cm Note When installing the storage tank be aware that any leakage can cause damage to the immediate environment or floors below the level of the boil...

Страница 56: ...t exchanger 3 T P valve 12 Temperature gauge recommended 37 Combined Q T sensor optional G Heat exchanger return 4 Stop valve recommended H Overflow protection 5 Non return valve mandatory 13 Condensa...

Страница 57: ...bar Because the pressure in the water pipe at times can exceed 8 bar you must fit an approved pressure reducing valve 1 Fit a non return valve 5 and an expansion vessel 16 Fit an expansion valve 15 an...

Страница 58: ...emperature of the tap water Fit a stop valve 4 in the hot water outlet pipe for servicing If a circulation pipe is required continue by installing the circulation pipe see section 7 4 1 3 7 4 2 3 Circ...

Страница 59: ...t the lead to the solar heating system controller and sensor S2 see electrical diagram and connections table see section 7 8 4 1 Connect the communication cable between the solar heating system contro...

Страница 60: ...ocal regulations The water heater is intended to be connected to a separately approved and marketed venting system This manual does not discus installation type B23 When you need a B23 system contact...

Страница 61: ...130 mm Diameter air inlet 150 mm 200 mm Description parts A O Smith Part number A O Smith Part number Wall terminal set A wall terminal 1 a 500 mm concentric pipe and a 90 bend 0302504 0311465 Wall t...

Страница 62: ...stated in the table must be fulfilled Even if you use less than the stated maximum number of bends the maximum pipe length still may not be exceeded Even if you use less than the stated maximum pipe l...

Страница 63: ...l venting systems Description Unit SGS 26 60 1 SGS 80 120 2 Default Diameter flue discharge air inlet mm 2x100 2x130 Maximum length air inlet m 55 65 Maximum length flue gas outlet m 55 65 Lequivalent...

Страница 64: ...length exceeds the maximum length as stated in the table 7 7 3 C43 C53 C63 systems The length of the air inlet and flue gas outlet is the same for C43 C53 and C63 systems as for C13 and C33 systems R...

Страница 65: ...Material flue gas outlet Thick walled aluminum Thick walled aluminum Material air inlet Diameter flue gas outlet 100 0 6 0 6 mm 130 0 6 0 6 mm Diameter air inlet Refer to C13 C33 parallel systems for...

Страница 66: ...rimary Secondary pump ON OFF link N L A N L1 A N L2 A X1 X2 A N L3 A X3 X4 X5 X6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 to 20 21 22 23 24 7 8 2 Mains power Note The water heater is supplied without a...

Страница 67: ...ntroller is 100W Connect neutral N live L and earth A to terminals 13 14 and 15 as indicated in the table see section 7 8 1 Fit the cable in the strain relief If you have no more connections to make F...

Страница 68: ...Preparation Remove the cover snap on type from the terminal block for the collector This has the following terminals 7 8 4 2 Connecting the mains power Note Just as with the water heater controller t...

Страница 69: ...relief Continue see section 7 8 4 7 7 8 4 6 Connecting top tank sensor Using the blade connectors connect the sensor S3 lead to the sensor Connect the other end to terminals 1 and 3 of J14 Fit the ca...

Страница 70: ...A Cold water flows into the water heater Fill the water heater until a full water jet flows from the nearest draw off point The water heater is completely full Open all draw off points to bleed the e...

Страница 71: ...ier of the appliance For any other system you should follow the procedure for that system Warning To avoid contaminating the glycol you should flush the solar heating system through with water before...

Страница 72: ...ose in an environment friendly manner and according to local regulations 7 9 2 Procedure for checking the supply pressure To check the supply pressure proceed as follows Isolate the appliance from the...

Страница 73: ...nite You must wait about 1 minute after the display shows the text RUNNING before reading the dynamic pressures the fan needs this time to get up to full speed so that you can get a reliable reading U...

Страница 74: ...supply Connect a pressure gauge to the test nipple Switch on the power to the appliance using the isolator on the appliance Switch the controller ON by setting the 0 I switch to position I The display...

Страница 75: ...the appliance until it is cold or by raising the value for Tset in the SERVICE menu Use for this Full load measurement From the service menu select SERVICE OPERATION FULL LOAD Confirm with ENTER The a...

Страница 76: ...start the appliance up Switch off the appliance Turn off the gas supply to the appliance Put the covers back on the appliance Contact the appliance s supplier Partial load measurement From the service...

Страница 77: ...e of the flue gas outlet pipe Shut off the gas supply Replace the covers 7 9 5 Switching pressure measurement To measure the switching pressure proceed as follows Isolate the appliance from the power...

Страница 78: ...rain the water heater 7 10 1 Turn off the water heater Refer to the procedure in the user part to Turn off the water heater see section 4 2 and isolate the water heater from the mains power supply 7 1...

Страница 79: ...y measures are required when working with the diluted glycol solution specified by the manufacturer For more information about the fluid please contact the manufacturer Activate the MENU with Position...

Страница 80: ...Remove the hose Note Dispose of the drained glycol in an environment friendly manner and according to local regulations 14 n 80 Installation Maintenance and Service part...

Страница 81: ...ou can order the conversion kit you need from the supplier of your water heater The conversion kit contains all the parts needed to do the conversion and a description of how to do the conversion The...

Страница 82: ...82 Installation Maintenance and Service part...

Страница 83: ...the service interval Service mode Setting legionella prevention Solar heating system configuration Setting the central heating configuration These sub menus are briefly described in the following para...

Страница 84: ...igure shows an example of Lock out errors In this case the text ERROR HISTORY is followed by L Note For an overview of all errors and the possible causes please refer to the relevant chapter see secti...

Страница 85: ...PERATION to display the SERVICE OPERATION menu and can be used to switch between PARTIAL LOAD and FULL LOAD If there is a heat demand the water heater will first run through a startup cycle then conti...

Страница 86: ...By default this period is set to Monday from 02 00 to 03 00 hours 9 2 7 1 Switching legionella prevention on and off To switch legionella prevention on or off select ANTI LEGIONELLA Select NO to switc...

Страница 87: ...Call up this menu as follows SETTINGS SOLAR TEST SOLAR PUMP The following display appears When START is selected the pump will start to run for two minutes Once the 2 minutes have elapsed the pump st...

Страница 88: ...as follows SETTINGS SOLAR Q T SENSOR 9 2 8 6 Displaying contribution This option enables you to read out how much energy the solar heating system supplies For this data to be displayed the installatio...

Страница 89: ...ral heating configuration Use this menu to specify whether a central heating system is connected to the installation Note This function is not yet available SETTINGS HEATING n 0311753_SGS_28 120_II_UK...

Страница 90: ...90 Installation Maintenance and Service part...

Страница 91: ...pare parts look at the data plate for the full serial number the water heater model and the used gas category Use this information when you order the spare parts Do the following maintenance activitie...

Страница 92: ...from the discharge points of all valves and remove any scale deposits that may be present Drain the water heater see draining see section 7 10 2 10 2 Water side maintenance To do water side maintenanc...

Страница 93: ...Gas side maintenance Do gas side maintenance when the water heater does not operate correctly the air pressure differential is not correct and or the CO2 value is not correct To do gas side maintenan...

Страница 94: ...heck the switching pressure of the pressure switch see section 7 9 5 Erase the message SERVICE REQUIRED The displayed message can be reset in either of two ways Temporary reset To postpone the message...

Страница 95: ...resets automatically to resume operation The code is displayed continuously and the back light of the display blinks Errors are reported on the display as follows Line one an error code and a brief d...

Страница 96: ...on Tighten the threaded connection There is a condensate leakage Make sure that the condensation water discharge is working properly If necessary correct the water discharge There is a leakage from an...

Страница 97: ...r service and maintenance engineer if the error persists Code and description Cause Measure S01 blocking error Open circuit from temperature sensor T2 at the bottom of the tank Sensor is not correctly...

Страница 98: ...r sensor S13 blocking error Short circuit in sensor 2 of temperature sensor T1 at the top of the tank 1 Short circuit in sensor circuit Replace the cable and or sensor S14 blocking error Short circuit...

Страница 99: ...between the pressure switch and the controller If necessary replace the wiring Pressure switch not closing Check the speed of the fan see section 12 1 Check that the hoses on the pressure switch and t...

Страница 100: ...ct roof or wall flue terminal has been installed see section 7 7 If necessary install the correct roof or wall flue terminal Check that the roof or wall flue terminal discharges into a permitted area...

Страница 101: ...rror message from the controller EEPROM read error 50 Hz error Internal communication error Internal error message from the controller Gas valve relay error Safety relay error Ignition relay error RAM...

Страница 102: ...nty will void Anode protection is not working The cables between the potentiostat and anodes are loose or have been connected incorrectly The earth connection of the anodes is loose The water heater i...

Страница 103: ...nutes pumping the fluid in the solar system round If Tcol Tcollector max after this has elapsed the pump will stop running for 30 minutes After 30 minutes the pump will start running again and the con...

Страница 104: ...104 Installation Maintenance and Service part...

Страница 105: ...2 12 2 12 2 12 2 12 Hysteresis downwards default value C 5 4 4 4 Solar differential adjustment range C 0 8 0 8 0 8 0 8 Solar differential default value C 7 2 2 2 Solar limit adjustment range C 65 80...

Страница 106: ...T P overflow pressure kPa bar 700 7 T P overflow temperature C 97 Description Unit SGS 28 SGS 30 SGS 50 SGS 60 Load profile XXL XXL XXL XXL Energy Efficiency Class Energy Label A A A A Energy Efficie...

Страница 107: ...5 5 Solar limit adjustment range C 65 80 65 80 65 80 Solar limit default value C 65 65 65 Number of electrical anodes 2 2 2 Observed pressure differential across the pressure switch Pa 260 260 260 Pr...

Страница 108: ...Load profile 3XL 3XL 3XL Energy Efficiency Class Energy Label Energy Efficiency 93 93 92 Daily Electricity Consumption kWh 0 281 0 290 0 301 Daily Fuel Consumption kWh GCV 49 811 49 922 50 060 Mixed W...

Страница 109: ...of hot water outlet mm 1485 2015 2015 2015 Ny y position of hot water outlet mm 205 205 205 205 P Height of cleaning opening mm 265 270 270 270 R Height of drain valve connection mm 180 170 170 170 S...

Страница 110: ...Fig Dimensions SGS 28 30 50 60 110 Installation Maintenance and Service part...

Страница 111: ...hot water outlet mm 2060 2060 2060 Ny y position of hot water outlet mm 205 205 205 P Height of cleaning opening mm 290 290 290 R Height of drain valve connection mm 225 225 225 S Height of T P valve...

Страница 112: ...Fig Dimensions SGS 80 100 120 112 Installation Maintenance and Service part...

Страница 113: ...temperature nominal load C 44 54 63 68 Gas category 3P G31 Diameter of the venturi restrictor mm 6 00 6 00 6 00 6 00 Nominal Load gross kW 31 5 32 6 51 1 62 0 Nominal output kW 31 0 32 7 50 3 60 4 Su...

Страница 114: ...41 9 172 9 211 1 Flue gas temperature nominal load C 52 55 60 Gas category 3P G31 Diameter of the venturi restrictor mm 6 60 6 60 6 60 Nominal Load gross kW 84 8 103 3 126 1 Nominal output kW 84 2 100...

Страница 115: ...ON C ON OFF OFF 3 ON C ON OFF OFF 4 ON C ON OFF OFF 5 ON C ON OFF OFF 6 ON C ON OFF OFF 7 ON C ON OFF OFF 8 ON C ON OFF OFF 9 ON C ON OFF OFF 10 ON C ON OFF OFF 11 ON C ON OFF OFF 12 ON C ON OFF OFF 1...

Страница 116: ...18 ON C ON OFF OFF 19 ON C ON OFF OFF 20 ON C ON OFF OFF 21 ON C ON OFF OFF Example Period Day Time Tset Pump 1 ON MO 14 30 70 C ON OFF OFF MO 16 15 116 Installation Maintenance and Service part...

Страница 117: ...6 12 11 16 15 14 13 19 18 17 20 24 21 22 23 J33 A R J38 J37 X X J34 J35 J39 J36 4 4 M X X 4 X 2 1 3 2 1 1 2 3 1 2 3 4 2 1 1 5 6 2 3 7 8 4 5 1 5 1 1 6 2 1 4 1 2 5 6 3 6 1 2 4 3 1 7 1 1 2 9 7 5 3 1 11 1...

Страница 118: ...sformer A Earth K Double pole isolator JP3 Temperature sensor T2 connection N Neutral L Controller O I switch L Live input of controller M Display JP4 Dummy connection L1 Live input of isolating trans...

Страница 119: ...sensor S2 tank J16 Connection of BUS link communication EE Combined Q T sensor incl temperature sensor S4 solar collector return Terminal strip connections J18 Connection of PWM signal solar heating s...

Страница 120: ...RVAL PROGRAM OVERVIEW SERVICE OPERATION EXTRA PERIOD FULL LOAD PARTIAL LOAD SETTINGS LANGUAGE ANTI LEGIONELLA DAY TIME SOLAR CONFIGURATION SPECIFICATIONS DRAIN BACK REGULATION INTERVAL TEST SOLAR PUMP...

Страница 121: ...12 8 Declaration of conformity 0311753_SGS_28 120_II_UKUK_V2 0 2017 05 03 121...

Страница 122: ...rnment and local authority installation and building codes rules and regulations in force at the time of installation The water heater remains installed at the original site of installation The water...

Страница 123: ...shall not be borne by A O Smith Article 7 Claims A claim on grounds of the specified warranty must be submitted to the dealer from whom the water heater was purchased or to another authorised dealer f...

Страница 124: ...124 Installation Maintenance and Service part...

Страница 125: ...Index A About this manual 7 Appendices 105 C Copyright 3 I Installation 53 P Preface 3 T Trademark 3 Troubleshooting 95 0311753_SGS_28 120_II_UKUK_V2 0 2017 05 03 125...

Страница 126: ...126 Installation Maintenance and Service part...

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