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                                           MAXXfl o EVO  

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Содержание CWH 30/201

Страница 1: ...efore commencing installation and leave this manual with the customer for future reference M8673 MAXXflo EVO High efficiency condensing stainless steel storage water heater CWH 30 201 CWH 30 301 CWH 60 201 CWH 60 301 CWH 90 302 CWH120 302 CONTROLS OPERATING INSTRUCTION MANUAL ...

Страница 2: ...2 MAXXflo EVO Blank Page ...

Страница 3: ...W operating mode 14 2 6 Temporary DHW operation function 15 2 7 Information pages 16 2 8 Error messages 17 2 9 Maintenance messages 18 2 10 Error codes 19 2 11 Regional settings 23 3 0 Commissioning operation 3 1 Logging into Commissioning mode 24 3 2 Input Output test 25 3 3 Communication 26 3 4 Source 27 3 5 Consumer 28 3 6 Versions 29 3 7 Complete parameter list 30 3 8 Commissioning wizard 30 4...

Страница 4: ...OPER USE This Andrews Water Heaters product has been designed and manufactured to comply with current European stand ards of safety However following an improper use dangers could arise concerning the safety and life of the user or of other people or damage could be caused to the heater or other objects This heater is designed to be used in a pumped domestic hot water system and is intended exclus...

Страница 5: ...ed and the condensate trap on the side of the heater is emptied and cleaned The trap can be examined by unscrewing by hand the bowl at the bottom of the trap See illustration below HEATER FAILURE In the event of failure and or suspected faulty functioning of this heater Switch off the heater and contact suitable qualified technicians Do not attempt to make any repairs unless you are suitably qualif...

Страница 6: ...n your own interest and that of safety to ensure that the law is complied with The installation of the Heater MUST also be in accordance with the current Wiring Regulations the Local Building Regulations Building Standards the Bye Laws of the Local Water Undertaking any relevant requirements of the Local Authority A detailed guide to the Installation and maintenance of this heater is supplied sepa...

Страница 7: ...n then push ing the control knob to select the item When selected the item will be displayed as inverse and can then be changed by rotating the control knob and the change is confirmed by pushing the control knob If the item was selected by mistake take your hand off the control knob do not push the control knob wait for 5 seconds and the item will de select and revert to its previous value In order...

Страница 8: ...erating object is selected and is displayed inverted The lower level is displayed if the operating object consists of multiple levels e g Time program Turn control knob Set value Press control knob Confirm the set value The set operating object is once again preselected Continue navigation To other pages for selected and inverted displayed page titles Back Back goes a level higher within the work a...

Страница 9: ...repair pages Adapt parameters in Complete parameter list Symbol Alarm indicates a system error Symbol Maintenance Special operations indicates the presence of a maintenance message or special operation feedback Symbol Event indicates an event message from the system Hand symbol The Hand symbol is displayed if the heater operation mode is being held off due to the operation switch being in standby p...

Страница 10: ...select the time field value and press the control knob 3 Rotate the control knob and enter a new hour value by pressing the control knob 4 Rotate the control knob and enter a new minute value by pressing the control knob To set the date 5 Rotate the control knob to select the date field and press the control knob 6 Rotate the control knob and enter a new date month and year value by pressing the con...

Страница 11: ...HW tab selected rotate the control knob to highlight the time program field Press the control knob to enter the time clock setting page Once the field is selected rotate the control knob to reach the time programming screen OPERATION SWITCH Domestic Hot Water Operating mode On Temporary Nominal set point 28o C Time program 00 12 24 Domestic hot water Operating mode On Temporary Nominal set point 28o...

Страница 12: ...art and end times of the band to be the same then press the control knob The time settings of any day can be copied and applied to other days in the weekly schedule After setting up the times of the day required to be copied rotate the control knob and select copy in order to move to the copy to screen Domestic hot water Monday Tuesday Wednesday Thursday Friday Saturday Sunday 00 12 24 Back Monday...

Страница 13: ...t DHW tab and rotate the control knob to highlight the Nominal set point field and push the knob to select Once the field is selected rotate the control knob to change the Domestic Hot Water set point Confirm the selection by pressing the control knob within 3 seconds Domestic hot water Operating mode On Temporary Nominal set point 60o C Time program 00 12 24 Copy Monday to Monday Tuesday Wednesday T...

Страница 14: ...perating mode should be ON see example below NB If the operating mode is not ON when the operation switch is set to I ON change the operating mode to ON using the control knob and push to select Test that the operating mode changes when the position of the operation switch changes from ON to STANDBY and back to ON Domestic Hot Water Operating mode On Temporary Nominal set point 28o C Time program ...

Страница 15: ...to cancel the function With the icon highlighted press the control knob to select the Domestic hot water page Using the control knob move the indicator over the Temporary field and press the control knob to highlight the field Rotate the control knob to change the Temporary field from to Recharging and press the control knob to select the value The heater operation in now active and will recharge the...

Страница 16: ... for the info page required See example On a 90kW or 120kW model the Cascade screen will display the combined flow temperature of both operating heat engines and this represents the temperature of the water being charged into the tank On a 30kW or 60kW model Boiler temp represents the temperature of the water being charged into the tank Domestic hot water Charging active DHW temp 1 58 6o C Boiler I...

Страница 17: ...e the error detail see section 2 10 in this manual for possible error codes Press the RESET button located to the left of the GUI display and provided the error condition has been corrected the heater will run through the ignition sequence again A Lockout condition should not be repeatedly reset If the condition persists then a qualified repair engineer should be consulted Example In this example ...

Страница 18: ...maintenance issue The heater will continue to operate as normal but it may in future stop if the maintenance message is ignored and an error develops as a result Example In this example 105 Maintenance message is used to notify the user the heater has been in operation for more than 12 months and requires a service inspection When servicing has been completed the service counter should be reset us...

Страница 19: ...ess of all control PCBs via parameter 6600 83 BSB short circuit Any No BSB communication or wires shorted Check operation of GUI or OZW672 if fitted 84 BSB address collision Any Two appliances connected through BSB e g OZW672 have the same allocation address Change one of the appliances address via parameter 6600 98 Extension module 1 error Any AGU2 5 configuration error Check parameters 99 Extensio...

Страница 20: ...exchanger temperatures have been exceeded Investi gate flow rates and controls to determine causes of temporary fault code 125 Maximum boiler temperature exceeded Any Flow temperatures have been exceeded Appliance will continue once temperatures have dropped below maximum allowed limits 126 DHW charging temperature not reached Any Charging temperature never achieved Check operation and heat up time...

Страница 21: ...the reset for more than 10 seconds will also produce this lockout 848 849 Parameter update finished Press reset to apply changes 160 Fan speed threshold not reached Any Fan does not reach required speed setpoint via PWM control Check wiring and operation of fan Replace fan if necessary 377 Fan speed not reached Home run stage 378 Fan speed not reached Standby stage 379 Fan speed not reached Ignitio...

Страница 22: ... 5 extension module 353 Cascade flow sensor B10 missing Any Check connections and configuration of common flow tempera ture sensor B10 which is located at the feed into the tank on the front left mid section of the appliance 384 Extraneous light Any Ionisation current detected before ignition Check ionisation current Diagnostics producer parameter 8329 If there is a current present whilst the burner ...

Страница 23: ...ed and rotate the control knob to select the required field Default dates mark the start and end of summertime clock adjustment This can be changed if actual dates of adjust ment are known see below If required the display language can be changed Caution is advised before changing the language as you may experi ence difficulty finding the menu to be able to change it back again Regional settings 1 3 T...

Страница 24: ...the Graphical User Interface GUI screen move the control knob to select Setup page on the navigation bar and press the control knob In the work area use the control knob to select Expert field and press the control knob to select Select Commissioning using the control knob and press the control knob to select it Press control knob to continue into commissioning mode Expert Select user level Commiss...

Страница 25: ...the control knob Using the control knob select field 7700 Relay test and press control knob Rotate the control knob to select output to test Press the control knob to activate the desired relay see example above Once the testing has been completed change field 7700 Relay test back to No test and the heater will revert back to normal control of the outputs Input output test 7700 Relay test Relay outp...

Страница 26: ...the optional web server is fitted this setting will need to change to Slave with local setting as the web server will act as the time clock master and will provide all of connected heaters with a common time taken from the internet No adjustment for summer and winter times will be necessary if the web server is installed as time adjustments will be carried out automatically LPB system 6640 Clock mo...

Страница 27: ...he heater and it s sensors Example screen Useful parameters viewable in commissioning mode PARAMETER DESCRIPTION NOTES 8005 State boiler Current state of boiler 8009 State burner Current state of burner Boiler 1 1 8005 State boiler Off 8009 State burner Standby Back Input output test Communication Source Consumer Versions ...

Страница 28: ...d water entering the DHW tank 8950 Segment flow temp actual Temperature of the heated water entering the DHW tank 8951 Segment flow temp setpoint Setpoint of heated water entering the DHW tank 9009 Water pressure H3 Current primary system pressure 9016 Special temp 1 DHW tank Temperature of the first optional BUFFER SS300 10 9017 Special temp 2 DHW tank temperature of the second optional BUFFER SS300...

Страница 29: ...ext versions used by the heater screen Details are shown for the software and text versions being used by the GUI this may be useful to establish the level of updates applied to the heater Input output test Communication Source Consumer Versions Operator unit Software version 4 4 Text version 7 1 Back ...

Страница 30: ...issioning mode 3 8 COMMISSIONING WIZARD The commissioning wizard is not required to setup of the heater parameters during the commissioning process but can be used if preferred The wizard is arranged in stages sections and the wizard will only give access to parameters that are relevant to the level of access being used If commissioning mode is selected accidently to exit the wizard you must conti...

Страница 31: ...ol knob to select Setup page on the navigation bar and press the control knob In the work area use the control knob to select Expert field and press the control knob to select Select Engineer using the control knob and press the control knob to select it Press control knob to continue into commissioning mode Enter password 10001 by rotating the control knob and then pressing the control knob to inp...

Страница 32: ...ng mode 4 2 ERROR HISTORY This function displays information about the last 20 errors or maintenance messages recorded by the controls Each of the 20 recorded entries contains the time and date that the incident was logged soft ware diagnostic code and burner control phase Expert Login successful Accessible for Engineer Continue Input output test Communication Source Consumer Error History Version...

Страница 33: ...des See section 2 10 for error codes See following page for explanation of control phases Error history 2 40 6805 SW diagnostic code 1 393 6806 Burner control phase 1 4 Back Error history 1 40 6800 History 1 13 52 10 08 2016 6803 Error code 1 133 Safety time exceeded ...

Страница 34: ...Second part of safety time with spark off and gas valve open 15 TI Operation Interval Stabilisation of flame 5 seconds 16 MOD Operation Control mode Burner is modulating normally Main phase of operation 17 THL2 Shutdown Post purging Post purging at last operating fan speed Demand has been turned off gas valve will be closed 18 THL2A Shutdown Post purging Post purging at pre purge fan speed Demand has...

Страница 35: ...ss level Using the control knob select the adjustment page tab and press the control knob Select Complete parameter list and press the control knob You now have access to all available parameters for viewing and adjustment starting from Time of day and date screen Select or deselect the section heading to move through the sections and select or deselect the pages to scroll through the pages of eac...

Страница 36: ...3 Has no effect on DHW operation 48 Warmer cooler device 1 Has no effect on DHW operation 70 Software version Current firmware version for this Graphical User Interface GUI Time program 4 water heater Set time program Optimised for BS EN 13302 1 Used to set the time program for DHW heating can also be set on the DHW water heater menu of the user screen Follow section 2 3 for instruction on how to set...

Страница 37: ...is set the legionella function is completed the moment the setpoint is met 1647 Legionella function circula tion pump Off When the function is activated the circulating pump is switched on while the Legionella function is performed as soon as the tank temperature acquired by the sensor lies above the Legionella function setpoint minus 1 K The pump runs during he dwelling time set If the tank temper...

Страница 38: ...aches legionella setpoint Boiler 2300 Frost protection for plant boiler pump On When turned on the pump is activated when the temperature in the heat exchanger drops below 5O C DHW Storage tank 5012 DHW forced charging On The first charge activation of the day is calculated using a switching differential of 1O C regardless of the setting of pa rameter 5024 5020 DHW setpoint boost 0o C Used by the co...

Страница 39: ...ed if the boiler delivers a fault status message or has been shut down via boiler lock This means that in normal situations the DHW is always heated by the boiler Summer The electric immersion heater is used as soon as all connected heating circuits have switched to summer operation The DHW is again heated by the boiler as soon as at least 1 of the heating circuits has switched back to heating ope...

Страница 40: ...on 5581 Temp diff off dT contr 2 1 0o C If the temperature difference between the BUFFER SS300 10 tank and the MAXXflo EVO tank is less than this value K22 transfer pump output will be turned off 5582 On temp min dT contr 2 0o C Not used 5583 Sensor 1 dT contr 2 DHW sensor B3 Sensor used for delta T comparison for K22 transfer pump activation 5584 Sensor 2 dT contr 2 Special temper ature sensor 1 Senso...

Страница 41: ...sor that has been removed NB When sensors have been stored to remove a sensor fault It may be necessary for midnight to pass on the internal clock before a sensor missing fault code is cleared completely 6220 Device SW version Version of Software in use 6230 Info 1 OEM Year of software in use 6231 Info 2 OEM Code for software in use 6258 info 3 OEM Not currently used 6259 Info 4 OEM Not currently ...

Страница 42: ...ion useful when performing a flue gas analysis NB The maximum flow temperature per mitted is 78O C if the flow temperature exceeds this value the function will be turned off Open hot water outlets if necessary to ensure that the maximum flow temperature is not exceeded 7131 Chimney sweep function burner output High fire Sets burner output level in chimney sweep mode 7143 Controller stop function Off Func...

Страница 43: ...r defined sensor 7831 Sensor temperature BX22 module 1 User defined sensor 7845 Voltage signal H2 module 1 Measured voltage of user defined input 7846 Contact state H2 module 1 Contact state of user defined input 7854 Voltage signal H3 Voltage signal from pressure transducer 90 120 models only 7855 Contact state H3 Not used by pressure transducer 7862 Frequency H4 Not used 7860 Contact state H4 Not us...

Страница 44: ...urner starts performed by the heater 8390 Current phase number Current phase stage of burner operation Diagnostics consumers 8830 DHW temperature B3 Actual DHW tank temperature 8831 DHW temperature setpoint Current DHW temperature set point 8835 DHW circulating temperature Actual DHW circulating return temperature if fitted 8836 DHW charging temperature Current DHW charging temperature at heat engi...

Страница 45: ...90kW 1900rpm 120kW 1950rpm Minimum limitation of 9524 9529 Required speed High Fire 30kW 4650rpm 60kW 6650rpm 90kW 5950rpm 120kW 6650rpm Fan speed required at maximum burner modulation 9530 Required speed High Fire maximum 30kW 4650rpm 60kW 6650rpm 90kW 5950rpm 120kW 6650rpm Maximum limitation of 9529 9540 Postpurge time 15s Number of seconds that the fan will continue to operate after the gas val...

Страница 46: ...he Complete parameter list or commission ing wizard that impact the device pages The device checks at the start of each minute whether the configuration has changed that impact the device pages Wait for the device clock to advance to the next minute after exiting Complete parameter list before accessing further parameters ...

Страница 47: ...47 MAXXflo EVO Blank Page ...

Страница 48: ...rews Built to perform BAXI HEATING COMMERCIAL BRANDS ALL TOGETHER BETTER 5HJLVWHUHG RI FH DGGUHVV D L HDWLQJ 8 URRNV RXVH RYHQWU 5RDG DUZLFN 9 June 2019 Sales 0345 070 1055 Technical 0345 070 1057 Web andrewswaterheaters co uk ...

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