andrews ECOflo EC230/600 Installation And Service Manual Download Page 5

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Issue 2 14/07/16

Contents

6.6

Correx powered anodes

6.7

Flushing water heater

6.8

Draining water heater

6.9

Filling water heater

6.10

Sediment and limescale

6.10.1

To remove sediment and limescale

6.11

To replace a correx anode

6.12

Drain valve and tank access panel

6.13

Cleaning the storage vessel

6.14

Descaling

6.15

Restart

6.16

Combined temperature/pressure relief value

6.17

Combustion system inspection

6.18

Accessing service mode on the water heater display (service personnel only)

6.18.1

Sequence of modes available in ‘service mode’ by pressing the ‘select’ button

6.18.2

To change the maximum setpoint limit (max setpoint) for the temperature setpoint

6.18.3

Display of water temperature

6.18.4

To display flame sense current of the pilot flame sensor

6.18.5

To display and change temperature setpoint

6.18.6

To display and change temperature format (°F/°C)

6.19

How to reset the control from lockout conditions

6.19.1

Resetting error codes in soft lockout condition

6.19.2

Resetting error codes in hard lockout condition

6.19.3

Error codes and error history display

6.19.4

Error code history

6.19.5

To view previous error codes

6.20

Diagnostic error codes and troubleshooting procedures for Honeywell intergrated controls

(24 volt flue damper model series)

6.21

Procedure for checking thermostat sensors

7 Fault finding

7.1

Main power light is not on

7.2

Thermostat does not call for heat

7.3

Ignition module ‘power’ LED is not lit

7.4

Fan does not energise

7.5

Ignitor does not glow

7.6

Main valve does not turn on

7.7

Burner flame keeps going out

7.8

Thermostat does not satisfy

7.9

Fan did not post purge

8 Parts list and illustrations

8.1

EC230/600 to LEC380/1400 general assembly

8.2

EC380/1900 and LEC380/1900 general assembly

8.3

EC230/600 to LEC380/1400 combustion system assembly

8.4

EC380/1900 and LEC380/1900 combustion system assembly

8.5

EC230/600 to LEC380/1400 combustion surround

8.6

EC380/1900 and LEC380/1900 combustion surround

8.7

EC230/600 to LEC380/1400 ignition control system

8.8

EC380/1900 and LEC380/1900 ignition control assembly

8.9

Concentric flue component list (100/150mm dia.)

8.10

Unvented system kit B290 - parts list

9 Appendix

9.1

Dismantling, disposal and recycling

100

102

104

105

105

Summary of Contents for ECOflo EC230/600

Page 1: ...nstallation and leave this manual with the customer for future reference 7 V YHUNL 0PNO LM JPLUJ JVUKLUZPUN Z VYHNL H LY OLH LYZ MVY UH YHS NHZ HUK WYVWHUL 48 EC230 600 EC230 700 EC230 960 EC380 740 EC380 980 EC380 1220 EC380 1400 and EC380 1900 LEC230 600 LEC230 700 LEC230 960 LEC380 740 LEC380 980 LEC380 1220 LEC380 1400 and LEC380 1900 ...

Page 2: ... Water Heaters must be carried out by properly qualified personnel and therefore no liability can be accepted for any damage or malfunction caused as a result of intervention by unauthorised personnel Andrews Water Heaters policy is one of continuous product improvement and therefore the information in this manual whilst completely up to date at the time of publication may be subject to revision w...

Page 3: ...eat exchanger 3 8 Flue system 3 9 Water connections 3 10 Gas connections 3 11 Unpacking 3 12 Location 3 13 Remove crate 3 14 Location 3 15 Chemical vapour corrosion 3 16 Scalding 3 17 Typical propane bulk storage tank installation 3 18 Typical propane cylinder installation 3 19 Approximate time temperature scald chart 3 20 Gas meter size natural gas only 3 21 Gas pressure regulation 3 22 Gas suppl...

Page 4: ...r s safety guide 4 2 1 For your safety if you smell gas 4 2 2 For your safety 4 3 Air gas mixture adjustment 4 3 1 G20 natural gas mostly methane family 4 3 2 Propane gas models 4 4 CO2 percentage 5 Operating instructions 5 1 General instructions 5 1 1 To fill the water heater 5 1 2 Sequence of operation 5 2 Lighting instructions 5 2 1 For your safety read before lighting 5 2 2 Lighting instructio...

Page 5: ...Error code history 6 19 5 To view previous error codes 6 20 Diagnostic error codes and troubleshooting procedures for Honeywell intergrated controls 24 volt flue damper model series 6 21 Procedure for checking thermostat sensors 7 Fault finding 7 1 Main power light is not on 7 2 Thermostat does not call for heat 7 3 Ignition module power LED is not lit 7 4 Fan does not energise 7 5 Ignitor does no...

Page 6: ...quirements of the Gas Supplier Local Authority and recommendations of the British Standards and Codes of Practice detailed below BS 6700 Specification for design installation testing and maintenance of services supplying water for domestic use within buildings and their curtilages This standard supersedes the following British Standards and Codes of Practice CP99 CP310 CP324 202 CP342 Part 2 Centr...

Page 7: ...fications for installations inside buildings conveying water for human consumption BS EN 12897 Water supply Specification for indirectly heated unvented closed storage water heaters IGE UP 1A 1B Strength tightness testing and direct purging IGE UP 2 Installation pipework IGE UP 10 1 Edition 4 Installation of gas appliances in industrial and commercial premises ...

Page 8: ... a challenge of approximately 107 organisms per litre within one hour more than 99 999 of organisms had been killed After a subsequent stagnation period sampling did not reveal any residual contamination The design of the base of the water heater precludes legionella colonisation even after build up of debris The burner positioning ensures that the water at the bottom of the heater reaches the sam...

Page 9: ... mins Concentric flue size b 100 150mm 100 150mm 100 150mm 100 150mm 100 150mm 100 150mm 100 150mm 100 150mm Maximum flue run concentric b 16 metres 16 metres 16 metres 16 metres 16 metres 16 metres 16 metres 16 metres Cold Inlet water connection 1 BSP 1 BSP 1 BSP 1 BSP 1 BSP 1 BSP 1 BSP 1 BSP Hot outlet water connection 1 BSP 1 BSP 1 BSP 1 BSP 1 BSP 1 BSP 1 BSP 1 BSP Drain port connection BSP BSP...

Page 10: ...ob 450mm service clearance 1899 1857 1588 1524 330 Flue exhaust condense outlet Cleanout access Right side of plinth must not protrude past edge of heater outer casing 330 150 1972 T P Valve connection 3 4 BSP Gas connection Combustion air inlet 1 1 2 BSP Hot water outlet 1 1 2 BSP Cold water outlet Drain secondary return connection 718 dia ON OFF Switch Thermostat knob NB Unit must be installed o...

Page 11: ...uel consumption Qfuel week smart kWh with smart controls Weekly electricity consumption Qelec week smart kWh with smart controls Weekly fuel consumption Qfuel week kWh without smart controls Weekly electricity consumption Qelec week kWh without smart controls Storage volume V I 230 230 230 380 380 380 380 380 Mixed water at 40 C V40 I 500 Harmonised standards applied EN 13203 2 Specific precaution...

Page 12: ...not be installed in any location which contains a bed bath or shower There must be easy access to the plant room and water heater at all times The water heater must be located in an area where leakage from the tank water connections or the combination temperature and safety valve will not result in damage to the area adjacent to the water heater When such locations cannot be avoided a suitable dra...

Page 13: ... balanced flue appliances using concentric flue components supplied by Andrews offering the ultimate in siting and installation flexibility All models incorporate Correx Powered maintenance free Anodes as standard which substantially reduce service time and costs The factory fitted Hydrojet sediment reduction system on the cold inlet connection helps to prevent sediment build up at the base of the...

Page 14: ...ell of the single bulb controller also contains the high limit energy cut off sensor The high limit switch interrupts the main burner gas flow should the water temperature reach approximately 93 C Should the high limit switch activate it must be manually reset This can be accomplished by depressing the red button on the control panel once the water temperature of the tank has dropped below 71 C Pl...

Page 15: ...l and therefore do not require any maintenance or replacement For this reason the service clearance required above the water heater can be reduced quite significantly Correx anodes require a permanent power supply this is all pre wired and the anode system can be located at the top of the heater beneath the top cover 3 3 8 Service Panel The service panel is located behind the service panel access ...

Page 16: ... condition Zero Inch Clearance The ECOflo external jacket is cool to the touch and is approved for zero inches to combustibles for unsurpassed installation flexibility Vitraglas lined tank Andrews Water Heater tanks are protected from the corrosive effects of hot water by an exclusive ceramic porcelain like coating Our high silica Vitraglas lining provides a tough interior surface Electrically pow...

Page 17: ... hot surface mini igniter Honeywell VK8115 gas valve negative pressure regulator with matched venturi sizes for mixing gas with combustion air EBM RG130 36 6 and 43 9 kW hr input sizes and RG148 58 3 through 85 0 kW hr inputs pre mix combustion blowers 230 volts 50 60 Hz Burner Acotech Bekaert Combustion Technology Premix burner with stainless steel mesh outside knit Blocked Vent Pressure Switch H...

Page 18: ...ottom of the tank in a stainless steel flue collector where the exhaust gases and condensate exit out through a short Stainless Steel pipe extending outside the jacket that connects to the coaxial concentric flue system A condensate tee with a silicone seal is connected to the plastic exhaust pipe and interfaces with the flue system The tee connection has a 32mm condensate drainpipe connection to ...

Page 19: ...r the condensate waste to run to a suitable drain 4 Minimum clearance to combustible material is 0 for the Top Sides and Rear of this water heater However it is recommended that at least 450mm from the Top 600mm from the Front 100mm from the Left Side and Rear and 500mm from the Right Side edge of the water heater be provided for servicing and ease of installation 1 Remove all banding and pry off ...

Page 20: ...r heater Spray can propellants cleaning solvents refrigerator and air conditioning refrigerants swimming pool chemicals calcium and sodium chloride waxes and process chemicals are corrosive Products of this sort should not be stored near the water heater or outside by the air intake if applicable This water heater can deliver scalding temperature water at any outlet in the system Be careful whenev...

Page 21: ...or normally fitted at tank BULK SUPPLY TANK Pigtail assembly Automatic change over device Nipple Propane cylinders must be outside the building Cylinder regulator set to give 37 mbar 14 86 Wg propane Gas emergencey control at entry 1 heavy steel sleeved pipe through wall Steel liner sealed to pipe at inside end Gas cock Fig 3 Fig 4 Important These drawings show a schematic representation only and ...

Page 22: ...h regard to scald injury This may be used as a guide in determining the safest water temperature for the installation 3 19 Approximate time temperature scald chart 3 20 Gas meter size natural gas only APPROXIMATE TIME TEMPERATURE RELATIONSHIPS IN SCALDS 48 8 C More than 5 minutes 51 6 C 1 to 2 minutes 54 4 C About 30 seconds 57 2 C About 10 seconds 60 0 C Less than 5 seconds 62 8 C Less than 3 sec...

Page 23: ...re or explosion If overpressure has occurred such as improper testing of gas lines or emergency malfunction of the supply system the gas valve must be checked for safe operation Where the water heater s is are installed in a water heater house or purpose built compartment a manually operated valve for the water heater house must be fitted in accordance with the Gas Safety Installation and Use Regu...

Page 24: ...preferably by use of a fused double pole switch or fused spur box serving only the heater The disconnection of the supply shall have a contact separation of 3mm on all poles The double pole switch for the water heater electrical supply must be located where it can be easily reached under all circumstances The point of connection to the mains electrical supply should be readily accessible through a...

Page 25: ...valve R R Toggle switch light N O Igniter Blower relay coil GN Y BK Y BL BK W W W GN Y W W BK GN Y BL Y BK Y BK BL BL Y BK BL BL Y GN Y W BK 1 3 2 230V T B G N N T B Correx powered anode control Igniter 230V Flame sensor Blower relay Blocked exhaust P S Collector limit T Stat High limit Gas valve Igniter relay Ground T B Transformer Combustion blower M 230V 24V 24V 24V L N 1 2 Powered anodes ON OF...

Page 26: ...00mm 12in above ground Consideration should be given to the location of the flue terminal The flue terminal should be located where the discharge of flue products does not cause a nuisance Consideration should also be given with regard to noise that may be emitted by this flue system In all cases the flue termination must meet the requirements of BS6644 A suitable terminal guard must be fitted if ...

Page 27: ...nstallation 2 Determine if additional flue components are required for installation Refer to the flue component information on pages 21 and 55 for available optional flue components 3 Ensure that the flue terminal location complies with requirements described within this manual and the Local Codes of Practice 4 Measure the vertical and horizontal distance from the water heater flue connection to d...

Page 28: ...litre models AWH part no B344 supplied components Part Description Part Number Exhaust Outlet Tee c w Condense Outlet 82500 E860 100mm to Concentric Exhaust Pipe 75412 E861 Air intake Tee Piece Connector 82501 E862 Condense Syphon 87436 E863 Vertical Flue Terminal 100 150mm 87969 E866 3 27 4 Horizontal flue kit fittings pack 380 litre models AWH part no B343 supplied components Part Description Pa...

Page 29: ...00mm 20in Flue pipe with clamp 5136160 1 90 Elbow 5136162 1 45 Elbow 5136161 1 Flat roof flashing for vertical flue terminal with adjustable cap E207 1 Roof flashing for pitched roof to suit 150mm 6in dia flue size E208 1 Locking clamp 150mm 6in dia 5136165 1 Condense Syphon E863 1 Condensate trap pipe kit to syphon 5136164 1 Wall Bracket 5136163 1 80mm Seal 5136166 Model EC230 600 EC230 700 EC230...

Page 30: ...nals must be installed in accordance with the Clean Air Act to ensure the results of combustion are properly dispersed The drawing on page 25 shows some minimum clearances for the flue terminal In addition the flue terminal should be positioned where it will not cause a nuisance from noise or from the combustion waste accumulating Please contact Andrews Technical Support Department if advice is ne...

Page 31: ...nd ensure that the open end is at the top of the tee piece 3 Fit item E861 or E865 depending on the model to both previously fitted E860 and E862 Ensure that both connectors are located correctly Secure the 100mm dia vertical section of item E861 or E865 to heater outer casing with brackets supplied Ensure that internal cable is not damaged during installation 4 Fit item E863 condense syphon to 32...

Page 32: ...Total height to centre line of bend 500mm 10mm Total height to centre line of bend including EC230 heater 1948mm 10mm Note Total height to top of bend 573mm 10mm Total height to top of bend including EC230 heater 2021mm 10mm Total height to centre line of bend including EC380 heater 2472mm 10mm Total height to top of bend including EC380 heater 2525mm 10mm Heights are given from bottom of heater a...

Page 33: ...w a gutter or sanitary pipework 75 E Below the eaves 200 F Below a balcony or carport roof 200 G Above ground roof or balcony level 300 H From vertical drain soil pipework 150 J From an internal or external corner 300 K From a surface or boundary facing the terminal 600 L Vertically from a terminal on the same wall 1500 M Horizontally from a terminal on the same wall up to 70kW 300 above 70kW 600 ...

Page 34: ... to the wall with four screws Depending on the wall construction wall anchors may be required to reinforce the screws d Install inside wall plate on the inside wall and secure with four screws Depending on wall construction wall anchors may be required to reinforce the screws Flue terminal Outer wall mount plate 4 Fixing screws supplied Hole through wall 4 Wall anchors Air intake openings must fac...

Page 35: ...lashing to the roof g Install the gasketed clamp around the joint between the flue terminal and flue pipe 3 29 10 Installing flue piping sections for both applications a The coaxial flue pipe sections are designed to fit tightly together and seal with the integral flue pipe seal and supplied pipe clamps No silicone caulk or special tools are required b All flue sections and fittings come complete ...

Page 36: ...h Make sure the inside tube is not cut Cut the inside flue pipe about 50mm 2in more than the outside pipe so that the flue pipe protrudes slightly beyond the outside pipe Connect the flue pipe and clamp at each end h Use the clamp supplied in the flue kit with the stepped gasket to seal the elbow or condensate trap to the concentric flue connector i Condensate disposal Connect syphon part no E211 ...

Page 37: ...housing the heater s The grilles should have a total minimum free area for the water heater s in addition to any other requirements as follows Low level inlet 540cm plus 5cm per kilowatt in excess of 54kW total net input High level outlet 270cm plus 2 5cm per kilowatt in excess of 54kW total net input 3 29 2 Air vents areas 3 29 Air supply and ventilation Position of Air Vents Air from Room for In...

Page 38: ...ness reaches 100 150ppm 7 10 degrees Clark and above This problem can be minimised by reducing the water temperature in the heater and by fitting suitable water pre treatment equipment When installing Andrews Water Heaters in hard water areas we would recommend that a water treatment specialist is consulted Each Andrews ECOflo Water Heater includes two factory fitted Correx Powered Anodes as stand...

Page 39: ...d be sized with reference to Technical Data BS 6644 Clauses 9 and 10 and CP 342 Local Regulations and Bye Laws must be observed when installing the system Front Cold inlet Front Hot outlet water connections Assemble onto the 1 hot water outlet front the required fitting using a suitable jointing compound Assemble onto the BSP thread the BSP coupler socket and drain cock using a suitable jointing c...

Page 40: ... discharge pipe from items C3 and C5 must be connected into tundish C6 When assembling items C1 and C2 ensure that the flow arrows marked on the components are pointing in the direction of flow i e towards the water heater The cold water for services may be drawn from the 22mm compression port on item C2 a The water pressure at this point will be similar to that available at the hot water outlet o...

Page 41: ...nstallation 3 Typical water service layout for unvented system is shown in Fig 19 Fig 19 Hot Water Service Secondary Return Pipe Bronze Pump Check Valve To Drain Cold Water Inlet Valve Balanced Cold Water Take Off Optional ...

Page 42: ...ammable vapours or liquids in the vicinity of this or any other gas appliance 4 1 Filling the heater with water 4 2 User s safety guide Caution DO NOT OPERATE THE WATER HEATER UNTIL THE STORAGE VESSEL IS COMPLETELY FILLED WITH WATER WITH WATER RUNNING FROM ALL HOT TAPS Open the main gas supply cock after all connections to the gas control are completed Test all connections using propriety leak det...

Page 43: ...n analyser to monitor the adjustments can result in dangerous levels of carbon monoxide 4 3 1 G20 Natural gas mostly methane family The venturi screw depth when measured with a set of callipers see fig 20 should be approximately 13 0 13 5mm The CO range should be set as detailed in Table 1 The CO content should be less than 50ppm If the CO content is above the correct percentage turn the venturi s...

Page 44: ... 50 55 EC380 1220 73 2 10 6 15 ppm 75 50 60 EC380 1400 85 11 0 15 ppm 86 55 60 EC380 1900 118 7 11 0 15 ppm 117 55 60 CO Percentage LPG Model Reference Input rating Combustion Flue Gas Volume Flue Temperature kW hr CO2 CO Cubic metres hr C EC230 600 36 6 11 2 11 5 ppm 40 50 60 EC230 700 43 9 10 5 21 ppm 49 50 60 EC230 960 58 6 9 9 11 5 ppm 63 55 60 EC380 740 43 9 10 5 16 5 ppm 49 45 50 EC380 980 5...

Page 45: ...d Plumbing air supply flueing gas supply and electrical work are required Light the unit in accordance with the operating instructions label attached to the water heater Under no circumstances should the input rate exceed the input rate shown on the water heater rating plate Over firing could result in damage or sooting of the water heater If the unit is exposed to the following do not operate wat...

Page 46: ...er ON 7 Flame signal confirmed 8 Thermostat satisfied 9 Main burner OFF 10 Blower post purge 5 2 1 For your safety read before lighting I This appliance does not have a pilot It is equipped with an ignition device which automatically lights the burner Do not try to light the burner by hand II BEFORE OPERATING smell all around the appliance for gas Be sure to smell near to the floor because some ga...

Page 47: ...ason or any cold period you may desire a higher temperature setting to adjust for the cold incoming water This adjustment however may cause additional condensation to form on the colder tank surface This does not mean the tank is leaking During summer months the warmer incoming water temperatures will benefit the performance of your water heater and reduce the amount of condensation developed Cond...

Page 48: ...with high water temperature the ECO is probably operational and the cause of overheating should be investigated When small amounts of hot water are drawn repeatedly the thermostat responds to each feed of cold water and activates the main burners Each time this occurs more heat may be put back in the tank than was drawn off As this continues water in the upper level of the tank gets hotter than th...

Page 49: ...ion with the water heater If this is the case a numeric code will be displayed Refer to the label next to the display for the definition of the error code and call your plumbing professional or service agent to service the water heater Do not try to reset the water heater without having a qualified service person to diagnose and correct the problem If the display is blank or does not show an error...

Page 50: ...ediately Setpoint will stop flashing If the SET button is not pressed the new temperature setting will take effect in approximately 10 seconds Fig 27 Temperature Setpoint in Degrees F or Degrees C Range 70 Max F Range 21 Max C Shown flashing in display only when temp is adjusted Temperature up button Temperature down button Set button Sequence of operation indicator reads Idle or Heating Select bu...

Page 51: ...ator begins flashing in the display after pressing Temperature Down button Fig 29 3 Press SET button for new setting to take effect immediately Setpoint will stop flashing If the SET button is not pressed the new temperature setting will take effect in approximately 10 seconds Fig 30 Fig 28 Setpoint flashes Fig 29 Setpoint flashes for 10 seconds Press SET button for setting to take effect immediat...

Page 52: ...displayed Fig 31 2 Press SET button to change temperature format Symbol F C will flash Fig 32 3a Press Temperature Up button to change temperature format to C Fig 33 3b Press Temperature Down button to change temperature format to F Fig 34 F C F C Fig 31 F C flashes Fig 32 F C C Changes to C Fig 33 F C flashes F C F Changes to F Fig 34 F C flashes ...

Page 53: ...ended that all service work be performed by a qualified service agency If the water heater is to remain idle for 30 days or more or is subjected to freezing temperatures while shut off the water heater and piping should be fully drained See To Drain the Water Heater and the drain valve should be left fully open F C F Fig 35 Symbol F C stops flashing F Fig 36 Setpoint shown in F Warning Hydrogen ga...

Page 54: ...ly by children with the water heater and vent system UNDER NO CIRCUMSTANCES SHALL FLAMMABLE MATERIALS SUCH AS GASOLINE OR PAINT THINNER BE USED OR STORED IN THE VICINITY OF THIS WATER HEATER VENT SYSTEM OR IN ANY LOCATION FROM WHICH FUMES COULD REACH THE WATER HEATER OR VENT SYSTEM HOT SURFACE IGNITION HSI SYSTEM COMPONENTS EC380 1900 MODEL ONLY Fenwal 35 655305 121 Hot Surface Ignition Control CE...

Page 55: ...ure switch Contacts open in the event of a severe blockage of the flue outlet 5 10 Direct spark THERMOSTAT AND HIGH LIMIT CONTROLS EC380 1900 MODEL ONLY Honeywell L6189A 2043B aquastat Temperature adjustment range Below 40 C to maximum of 82 C dial stop to limit maximum temperature Differential set to 4 C Capillary bulb inserts into well in top of tank Thermostat dial adjustable on top front secti...

Page 56: ...5 Annually remove the main burner rack assembly to clean orifices and related parts of any dirt or other foreign material Inspect the burner ports for obstructions or debris and clean with a wire brush vacuum or use a mild detergent solution to clean as needed 6 At least once a year check the combination temperature and pressure relief valve to insure that the valve has not become encrusted with l...

Page 57: ...oftened or phosphate treated water However the new models have Correx anodes that do not require inspection or replacement 10 The venting system must be inspected at least once a year to ensure against leakage of exhaust products Servicing must be carried out by a properly qualified person Whilst giving these instructions for the care of the ECOflo it is recommended that checks are carried out by ...

Page 58: ...on A periodic inspection of the flue installation system should be made Following are the instructions for performing some of the recommended maintenance Unit inspection and adjustment should be performed by a competent qualified engineer As Correx Powered Anodes are fitted as standard to this appliance no maintenance is necessary 1 Turn OFF the water heater electrical disconnect switch 2 Open the...

Page 59: ...k for water leaks at the water heater drain valve combination temperature and pressure relief valve and the hot and cold water connections Waterborne impurities consist of the particles of soil and sand which settle out and form a layer of sediment on the bottom of the tank The amount of calcium carbonate scale released from water is in direct proportion to water temperature and usage The higher t...

Page 60: ... to replace the anodes 1 Drain the heater Refer to DRAINING THE WATER HEATER instructions in this section 2 Flush the heater Refer to FLUSHING THE WATER HEATER instructions in this section 3 Remove the combustion surround top by unlatching 4 Locate the hexagonal head of the anode s beneath the tank insulation 5 Remove the anode using a socket of the appropriate size Do not use an impact wrench 6 R...

Page 61: ...d isolate gas supply 2 Close water inlet valve and drain heater tank 3 Remove magnesium anode s It is recommended that new anode s is are fitted 4 Add suitable hydrochloric acid based descale fluid The requirement is normally 10 litres or more dependent on the amount of limescale present 5 After a minimum of one hour restore gas supply and turn on main gas burner for 2 minute maximum 6 Isolate gas...

Page 62: ... water supply system or due to a faulty relief valve Thermal expansion is the normal response of water when it is heated In a closed system thermal expansion will cause the system pressure to build until the relief valve actuation pressure is equalled The relief valve will then open allowing some water to escape slightly lowering the pressure Inspect the operation of the combustion system monthly ...

Page 63: ...ig 38 2 Pressing Select button will change display to next mode Fig 39 6 18 Accessing service mode on the water heater display Service personnel only Max Setpoint next to Temperature Setpoint value Fig 38 F Fig 39 Note 30 Seconds after the last button press the display will automatically return to the User Mode Simultaneously pressing the Select and Temperature Up buttons will switch the display i...

Page 64: ...he User Mode Fig 40 1 Max Setpoint Display Change Fig 41 2 Water Temperature Average Displays average if there are two sensors sensor temperature displayed if single sensor is used Fig 42 2b Water Temperature Upper Sensor Displays if there is an upper sensor some models Fig 43 Fig 40 idle Fig 41 idle Fig 42 Error code shown in water heater display Max Setpoint value water heater display idle Fig 4...

Page 65: ...ensor Displays if there are two sensors Fig 44 3 Flame Current of Pilot Flame Sensor Displays only in the Heating Cycle Fig 45 4 Setpoint Display Change Fig 46 5 F C Display Change Fig 47 idle Fig 44 Flame Current µA Fig 45 idle setpoint Fig 46 idle F C F Fig 47 ...

Page 66: ...rmostat Fig 48 7 Software Version Display only Fig 49 8 Error Code History Displays if there are present error codes or up to 10 previous error codes Water Heater Display will show if there are no error codes Fig 50 F Differential idle Fig 48 idle Soft Fig 49 idle Fig 50 No current error codes ...

Page 67: ...mode Fig 54 idle F Max Setpoint idle F Max Setpoint Fig 52 idle F Max Setpoint Fig 53 Max Setpoint flashes Max Setpoint continues to flash while making adjustments idle F Max Setpoint Fig 54 Max Setpoint stops flashing Fig 51 Warning Setting the water temperature to the maximum set point can result in scalding hot water delivered to the taps It is highly recommended that the maximum setpoint be ad...

Page 68: ...eaters using two temperature sensors in the tank this will be the average reading between the two sensors For water heaters using a single sensor this is the reading for the sensor Fig 56 2 For water heaters using two temperature sensors pressing the Select button again displays the Upper Sensor temperature reading Upper Sensor will be displayed in the lower right side of the status window of the ...

Page 69: ...ect button until Setpoint is shown in the water heater display Fig 60 2 Press the Set button to enter the setting mode Setpoint will flash in the water heater display Fig 61 3 To raise the temperature setpoint press the Temperature Up button until the desired temperature is shown on the water heater display Fig 62 Flame Current Heating µA Fig 59 F idle setpoint Fig 60 F idle setpoint Fig 61 Setpoi...

Page 70: ...he new setpoint Setpoint stops flashing in the water heater display Fig 64 6 18 6 To display and change temperature format F C 1 While in Service Mode press Select button until F C is shown in the upper right portion of the water heater display Fig 65 2 Press Set button to change temperature format F C symbol will flash in the water heater display Fig 66 F idle setpoint Fig 63 Setpoint flashes F i...

Page 71: ...emperature format to F Fig 68 4 Press Set button to confirm F or C format F C will stop flashing Fig 69 5 Pressing Select button will return display to setpoint in format selected F or C immediately Fig 70 F C C Fig 67 F C F Fig 68 F C F Fig 69 Changes to C F C Flashes Changes to C F C Flashes F C symbol stops flashing F Fig 70 Setpoint shown in F ...

Page 72: ...des will put the water heater into a Hard Lockout condition in which the water heater will not operate and cannot be reset in the User Mode To reset a hard lockout first enter the Service Mode described earlier by pressing both the Temperature Up and Select Buttons at the same time for 3 seconds Then press the lower right button under Lockout Reset in the water heater display and hold for 3 second...

Page 73: ...is not a current error code The Water Heater Display will provide up to 10 previous error codes The oldest error code will be stored in code index 1 and the most recent in code index 10 if there are 10 error codes 6 19 5 To view previous error codes 1 In Service Mode press the Select button until the next display after the Software Version If there are no current error codes the display will show ...

Page 74: ... for that index number Continue on to index 1 the oldest error code index The water heater display will store up to 10 error codes with the oldest code starting in code index 1 with the most recent code in code index 10 7 10 seconds after the last button press the Water Heater Display will revert back to the current error code display To exit Service Mode either wait 30 seconds or press Temperatur...

Page 75: ...he control board replace control Replace wire harness if voltage does not pass to the pin terminals from the control If there is 24 volts at flue damper connection replace flue damper If damper is closed disconnect harness and check continuity between pins from black and yellow wires on flue damper If there is continuity the end switch is stuck open Replace flue damper Check to make sure gas valve...

Page 76: ...valve wires on the control board pins If during the ignition trial period there is no voltage present at the control board pin terminal for the red and yellow wires leading to the gas valve then replace the control board Replace pilot if wires are damaged or electrode is damaged Pilot flame is lost during run cycle then reestablished on ignition cycle Check inlet gas pressure Is gas pressure dropp...

Page 77: ...78 8862 8653 8449 8250 8057 7869 7685 7507 90 7333 7165 7000 6839 6683 6531 6383 6238 6098 5961 100 5827 5697 5570 5446 5326 5208 5094 4982 4873 4767 110 4663 4562 4464 4368 4274 4183 4094 4006 3922 3839 120 3758 3679 3602 3527 3453 3382 3312 3244 3177 3112 130 3048 2986 2925 2866 2808 2752 3697 3643 2590 2538 140 2488 2439 2391 2344 2298 2253 2209 2166 2124 2083 150 2043 2004 1966 1928 1891 1856 ...

Page 78: ...replace the Thermostat Sensor Probe If the Sensor Probe is replaced and the unit still does not operate check Potentiometer for the proper resistance If the readings are correct replace the Thermostat PC Board Otherwise replace the Potentiometer Check for 230 VAC at the ignition module on 230 VAC IN If there is voltage check the secondary 24 volt terminals voltage across the transformer as previou...

Page 79: ...y pressure to the water heater Measure the mircoAmps through the flame sensor using a multimeter Is there at least 4 microAmps If not replace the Flame Sensor or flame sensor wire Is the tank temperature above the temperature set point Does the T P relief valve leak If yes replace Thermostat PC Board Check Pressure Switch exhaust pressure switch as previously mentioned Check Collector Limit Switch...

Page 80: ... 8 10 9 9 13 14 15 16 12 11 18 4 19 21 24 17 23 23 20 21 22 8 1 EC230 960 LEC230 960 EC230 600 LEC230 600 EC230 700 LEC230 700 EC380 740 LEC380 740 EC380 980 LEC380 980 EC380 1220 LEC380 1220 EC380 1400 LEC380 1400 General assembly 8 Parts list and illustrations Fig 81 ...

Page 81: ...nd Pass 1 4 Z277 Screw Second Pass Collector Cover 15 5 E881 Baffle 4 2 6 Z590 Anode Rod Magnesium 1 6 Z278 Anode Rod Magnesium 1 6A Z591 Anode Rod Titanium 2 7 Z592 Baffle 2 8 7 Z593 Baffle 2 8 8 Z594 Ht outlet Nipple Front 1 9 Z595 Nipple 1 NPT 1 10 Z596 Pipe Plug 1 11 Z597 Nipple 3 4 NPT 1 12 Z598 Inlet Tube Hydrojet Front connect 1 13 Z599 Clean out Gasket 1 14 Z600 Clean out Cover 1 15 Z601 S...

Page 82: ...cond Pass 1 4 Z277 Screw Second Pass Collector Cover 15 5 E881 Baffle 4 2 6 Z590 Anode Rod Magnesium 1 6 Z278 Anode Rod Magnesium 1 6A Z591 Anode Rod Titanium 2 7 Z592 Baffle 2 8 7 Z593 Baffle 2 8 8 Z594 Ht outlet Nipple Front 1 9 Z595 Nipple 1 NPT 1 10 Z596 Pipe Plug 1 11 Z597 Nipple 3 4 NPT 1 12 Z598 Inlet Tube Hydrojet Front connect 1 13 Z599 Clean out Gasket 1 14 Z600 Clean out Cover 1 15 Z601...

Page 83: ...ss 1 4 Z277 Screw Second Pass Collector Cover 15 5 E881 Baffle 4 2 6 Z590 Anode Rod Magnesium 1 6 Z278 Anode Rod Magnesium 1 6A Z591 Anode Rod Titanium 2 7 Z592 Baffle 2 8 7 Z593 Baffle 2 8 8 Z594 Ht outlet Nipple Front 1 9 Z595 Nipple 1 NPT 1 10 Z596 Pipe Plug 1 11 Z597 Nipple 3 4 NPT 1 12 Z598 Inlet Tube Hydrojet Front connect 1 13 Z599 Clean out Gasket 1 14 Z600 Clean out Cover 1 15 Z601 Screws...

Page 84: ...84 Issue 2 14 07 16 8 Parts List and Illustrations 1 2 4 3 8 6 5 26 7 10 11 12 9 11 15 16 17 18 14 13 20 4 21 23 25 19 22 23 24 8 2 EC380 1900 and LEC380 1900 General assembly Fig 83 ...

Page 85: ...nium 1 8 E880 Baffle 2 8 9 Z279 Wire Harness Service Panel 1 10 E875 Hot Outlet Nipple Front 1 11 E902 Pipe Plug 2 12 E874 Nipple 1 NPT 1 13 C247AWH Nipple 3 4 NPT 1 14 E876 Inlet Tube Hydrojet Front 1 15 C694 Clean out Gasket 1 16 C300 Clean out Cover 1 17 E483 Screws 5 16 18 x 1 2 6 18 C301AWH Clean out Access Cover 1 19 E899 Outer Door EF Series 1 20 E909 Exhaust Pressure Switch 1 21 Z280 Silic...

Page 86: ...230 960 LEC230 960 EC230 600 LEC230 600 EC230 700 LEC230 700 EC380 740 LEC380 740 EC380 980 LEC380 980 EC380 1220 LEC380 1220 EC380 1400 LEC380 1400 Combustion system assembly 42 34 45 56 55 53 54 53 52 51 46 50 49 46 47 48 37 35 36 38 39 40 41 43 2 44 Fig 84 ...

Page 87: ...36 Z280 Hose Tubing 3 16 ID 1 37 Z291 Screw 10 32 x 3 4 SHCS 1 38 Z637 Gas Valve Assy 1 38 Z638 Gas Valve Assy 1 38 Z639 Gas Valve Assy 1 38 Z640 Gas Valve Assy 1 38 Z641 Gas Valve Assy 1 38 Z642 Gas Valve Assy 1 38 Z643 Gas Valve Assy 1 38 Z644 Gas Valve Assy 1 39 Z645 Nipple 1 40 Z646 Reducer 1 41 Z647 Nipple 1 42 Z648 Flex Reducer 1 43 Z649 Inlet Pipe PVC 1 44 Z650 Gasket Blower Transition 1 45...

Page 88: ...er EBM only 1 35 Z635 Blower EBM only 1 35 Z636 Blower EBM only 1 36 Z280 Hose Tubing 3 16 ID 1 37 Z291 Screw 10 32 x 3 4 SHCS 1 38 Z637 Gas Valve Assy 1 38 Z638 Gas Valve Assy 1 38 Z639 Gas Valve Assy 1 38 Z640 Gas Valve Assy 1 38 Z641 Gas Valve Assy 1 38 Z642 Gas Valve Assy 1 38 Z643 Gas Valve Assy 1 38 Z644 Gas Valve Assy 1 39 Z645 Nipple 1 40 Z646 Reducer 1 41 Z647 Nipple 1 42 Z648 Flex Reduce...

Page 89: ...only 1 35 Z635 Blower EBM only 1 35 Z636 Blower EBM only 1 36 Z280 Hose Tubing 3 16 ID 1 37 Z291 Screw 10 32 x 3 4 SHCS 1 38 Z637 Gas Valve Assy 1 38 Z638 Gas Valve Assy 1 38 Z639 Gas Valve Assy 1 38 Z640 Gas Valve Assy 1 38 Z641 Gas Valve Assy 1 38 Z642 Gas Valve Assy 1 38 Z643 Gas Valve Assy 1 38 Z644 Gas Valve Assy 1 39 Z645 Nipple 1 40 Z646 Reducer 1 41 Z647 Nipple 1 42 Z648 Flex Reducer 1 43 ...

Page 90: ...90 Issue 2 14 07 16 8 Parts List and Illustrations 44 59 47 58 57 55 56 55 54 53 48 52 51 48 49 50 38 36 37 39 40 41 42 43 45 2 46 8 4 EC380 1900 and LEC380 1900 Combustion system assembly Fig 86 ...

Page 91: ...1 46 Z082 Gasket Blower Transition 1 47 Z298 Burner Assy 1 48 Z299 Screw 8 32 x 1 4 RHCR 4 49 E891 Gasket Sensor 1 50 E890 Flame Sensor 1 50 Z691 Flame Sensor c w Gasket Black Top 1 50 Z692 Flame Sensor Lead Black Top 1 51 Z300 Weldment Blower Transition 1 52 Z301 Nut Hex Washer 4 53 E877 Hot Surface Ignitor 1 53 Z690 Hot Surface Ignitor Lead Black Top 1 54 Z302 Gasket Hot Surface Ignitor 1 55 E88...

Page 92: ...t and Illustrations 8 5 EC230 960 LEC230 960 EC230 600 LEC230 600 EC230 700 LEC230 700 EC380 740 LEC380 740 EC380 980 LEC380 980 EC380 1220 LEC380 1220 EC380 1400 LEC380 1400 Combustion surround 26 27 32 33 25 26 28 29 30 31 1 Fig 87 ...

Page 93: ...LEC230 EC380 LEC380 EC380 LEC380 Number 700 1220 1220 1400 1400 25 Z609 Surround Head 1 26 Z610 Screw 8 18 x 14 4 27 Z611 Ignition Control Assy 1 28 Z612 Surround Ring 1 29 Z613 Main Power Switch 1 30 Z614 Display 1 31 Z615 Screw 8 18 x 3 4 4 32 Z616 Water Tight Fitting 1 33 Z617 Surround Base 1 Item Part Number Description Qty EC380 LEC380 EC380 LEC380 Number 740 740 980 980 25 Z609 Surround Head...

Page 94: ...94 Issue 2 14 07 16 8 Parts List and Illustrations 8 6 EC380 1900 and LEC380 1900 Combustion surround 35 27 29 28 31 33 32 30 27 29 28 34 Fig 88 ...

Page 95: ...ion Qty EC380 LEC380 Number 1900 1900 27 Z284 Rivet 8 32 x 49 4 28 Z285 Keeper Latch Catch 2 29 Z286 Screw 8 32 x 1 2 RHCR 4 30 Z287 Surround Ring 1 31 E885 Control Assy 1 32 E883 Aquastat 1 33 E884 Main Power Switch 1 34 Z288 Combustion Surround Base 1 35 Z289 Surround Head 1 ...

Page 96: ... 960 EC230 600 LEC230 600 EC230 700 LEC230 700 EC380 740 LEC380 740 EC380 980 LEC380 980 EC380 1220 LEC380 1220 EC380 1400 LEC380 1400 Ignition control assembly 73 27 72 71 74 66 60 65 60 64 62 63 62 61 60 59 71 58 57 60 67 68 69 75 76 77 78 79 80 81 82 83 84 85 70 Fig 89 ...

Page 97: ...2 Noise Suppressor 1 66 Z663 Alarm Module 1 67 Z664 Terminal Strip 1 68 Z308 Revet 4 69 Z665 Terminal 2 70 Z666 Control Module 1 71 Z667 Screws 8 32 x 1 2 2 72 Z668 Control Panel 1 73 Z669 Control Mounting Bracket 1 74 Z312 Power Anode Control Harness 1 75 Z670 Powered Anode Control Harness 1 76 Z671 Control Display Harness 1 77 Z672 Blower Harness 1 78 Z673 Power Swich Harness 1 79 Z674 Primary H...

Page 98: ...662 Noise Suppressor 1 66 Z663 Alarm Module 1 67 Z664 Terminal Strip 1 68 Z308 Revet 4 69 Z665 Terminal 2 70 Z666 Control Module 1 71 Z667 Screws 8 32 x 1 2 2 72 Z668 Control Panel 1 73 Z669 Control Mounting Bracket 1 74 Z312 Power Anode Control Harness 1 75 Z670 Powered Anode Control Harness 1 76 Z671 Control Display Harness 1 77 Z672 Blower Harness 1 78 Z673 Power Swich Harness 1 79 Z674 Primary...

Page 99: ...se Suppressor 1 66 Z663 Alarm Module 1 67 Z664 Terminal Strip 1 68 Z308 Revet 4 69 Z665 Terminal 2 70 Z666 Control Module 1 71 Z667 Screws 8 32 x 1 2 2 72 Z668 Control Panel 1 73 Z669 Control Mounting Bracket 1 74 Z312 Power Anode Control Harness 1 75 Z670 Powered Anode Control Harness 1 76 Z671 Control Display Harness 1 77 Z672 Blower Harness 1 78 Z673 Power Swich Harness 1 79 Z674 Primary Harnes...

Page 100: ...100 Issue 2 14 07 16 8 Parts List and Illustrations 8 8 EC380 1900 and LEC380 1900 Ignition control assembly 31 75 76 77 78 79 80 81 82 83 84 73 72 71 70 69 68 67 66 65 64 63 62 61 60 85 74 Fig 91 ...

Page 101: ...und Lug 10 68 Z309 Relay Control 1 69 Z266 Screw 8 18 x 3 4 4 70 E887 Fenwal Module 1 71 Z310 Keeps Nut 4 40 2 72 E889 Power Anode Control 1 73 Z311 Screw 4 40 x 3 8 2 74 E886 Hi Limit Module 1 75 Z268 Power Anode Control Harness 1 76 Z312 Power Anode Harness 1 77 Z313 Blower Harness 1 78 Z314 Gas Valve Harness 1 79 Z315 T Stat ECO Power Switch Harness 1 80 Z316 230 v Neutal Harness 1 81 Z317 Grou...

Page 102: ...102 Issue 2 14 07 16 8 Parts List and Illustrations 8 9 Concentric flue component list 100 150mm dia Fig 92 ...

Page 103: ...Flue Terminal B342 B343 3 Wall Bracket not shown 5136163 4 1000mm Cuttable Flue with Clamp 5136159 5 500mm Flue with Clamp 5136160 6 Condensate Trap Tee c w Syphon 5136164 7 Flat Roof Plate E207 8 Angled Roof Plate E208 9 Horizontal Flue Outlet Terminal Guard E105 10 45 Elbow with Clamp 5136161 11 Locking Clamp not shown 5136165 ...

Page 104: ... Parts list Part Ref Description Part Number C1 Combined Pressure Reducing Valve Strainer C784 C2 Check Valve Assembly C785 C3 Expansion Valve C786 C4 Expansion Vessel 25 Litre C782 C5 Temperature Pressure Relief Valve C380 C6 Tundish from Expansion Valve and T P Valve C384 C7 Hose Assembly C788 Fig 93 ...

Page 105: ...ling please ensure you safely remove the power supply and isolated the appliance from the water and gas connections Dispose of the appliance correctly according to the laws and regulations in force The appliance and accessories cannot be discarded along with normal household waste and should be recycled where appropriate More than 90 of the materials that make up the appliance are recyclable ...

Page 106: ...106 Issue 2 14 07 16 ...

Page 107: ...chnological information contained in these technical instructions as well as any drawings and technical descriptions supplied remain our property and shall not be multiplied without our prior consent in writing Subject to alterations ...

Page 108: ...e sure w to activate o Register n ve the right to make changes and impr r we rese lu ll l descriptions and i il l ll descriptions and i A Conditions of Sale which are available on request our warranty to be monitored y ou attach proof of purchase for andrewswaterheaters co uk registe w ww our warranty y vements in our products which may a o make changes and impr ro vided in this document have been...

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