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Installation and Servicing

Instructions

E-Tec Plus 28 and 33

Wall Mounted, Fan Assisted, Room Sealed,

Gas Fired, High Efficiency Condensing Combination Boiler

Nepicar House, London Road,

Wrotham Heath, Sevenoaks,

Kent  TN15 7RS

For Technical help or for Service call ...

ALPHA HELPLINE Tel: 0344 871 8764

website: www.alpha-innovation.co.uk

Set for use with Natural Gas

Leave these instructions with the User

These instructions have been carefully prepared but we reserve the right 
to alter the specification at any time in the interest of product improvement.
© Alpha Therm Limited 2018.

Part No. 1.042373 rev. ST.003780/000

0918/D387

Alpha E-Tec Plus 28 

G.C. No. 47 532 77

Alpha E-Tec Plus 33 

G.C. No. 47 532 78

Summary of Contents for E-Tec Plus 28

Page 1: ...Service call ALPHA HELPLINE Tel 0344 871 8764 website www alpha innovation co uk Set for use with Natural Gas Leave these instructions with the User These instructions have been carefully prepared bu...

Page 2: ...ults and concerns to the manufacturer in a timely manner Customer Service Show the customer any identity card that is relevant to the work being carried out prior to commencement or on request Give a...

Page 3: ...on for Installation gas fired boilers up to 70 kW BS 6891 2005 A2 2008 Installation of low pressure Gas Pipework IGEM UP 2 Installation of pipework IGEM UP 4 Commissioning of gas fired plant IGE UP 10...

Page 4: ...nal connection point READ AND UNDERSTAND THE INSTRUCTIONS Read and understand the appliance s instructions before performing any operation carefully following the indications provided RECOVERABLE OR R...

Page 5: ...ency 2005 SAP SEDBUK seasonality efficiency 2009 ErP DHW efficiency ErP Seasonal space heating efficiency Max primary system pressure bar MPa Min primary system pressure bar MPa Recommended system pre...

Page 6: ...in the boiler parameter menu Fixed The pump runs at a constant speed by setting the same minimum and maximum speeds See parameters A1 and A2 in Section 6 13 Constant The pump speed is controlled to gi...

Page 7: ...pass closed dotted area A B Head available with by pass closed B Head available with by pass open C D Power consumed by the pump with by pass open dotted area D Power consumed by the pump with by pas...

Page 8: ...pressure PMW Maximum DHW pressure D Specific flow rate TM Maximum operating temperature NOx Class NOx Class CONDENSING Condensing boiler NOTE Technical data is provided on the boiler data label and i...

Page 9: ...t pressure point 18 Air test point pressure point 19 Burner 20 Primary return sensor 21 Fan 22 Automatic air vent 23 Boiler pump 24 Primary pressure switch 25 DHW heat exchanger 26 Diverter valve 27 B...

Page 10: ...uilding Regulations 4 4 FLUE SYSTEM Figs 4 1 4 2 The flue system must be installed in accordance with BS 5440 1 When using a horizontal flue kit ensure that the flue outer duct is installed horizontal...

Page 11: ...al Boiler Information L A B 90 bend 1 3 metre L A 2 x 45 bends 1 8 metre Fig 4 2 VERTICAL FLUE OPTIONS Hmax 14 m Hmax 12 2 m 14 m 1 8 m 12 m B A A B A HORIZONTAL FLUE OPTIONS Lmax 12 metres Not less t...

Page 12: ...must allow the free passage of air across it at all times 8 The flue terminal must be positioned where products of combustion will freely disperse and not cause a nuisance 9 Where a terminal is sited...

Page 13: ...e material without the use of a special thermal insulation barrier If the boiler is to be fitted in a timber framed building it should be fitted in accordance with the Institute of Gas Engineers Guide...

Page 14: ...ates an automatic by pass therefore an automatic by pass is not required for the system unless separate zone valves have been installed 4 8 FILLING THE CENTRAL HEATING SYSTEM Fig 4 6 The system design...

Page 15: ...ration 4 10 DISPOSAL OF CONDENSATE Provision must be made for the safe disposal of condensate produced by the flue gases of the Alpha boilers and reference should be made to BS 6798 for the requiremen...

Page 16: ...e made to treat the feed water to the hot water circuit of combination boilers to reduce the rate of accumulation of limescale To ensure economic use the pipe runs between the boiler and taps should b...

Page 17: ...racket 5 INSTALLATION Fig 5 1 Alpha E Tec Plus 28 and 33 Installation 5 1 UNPACKING 1 The boiler carton also contains the following Connection kit union bends washers and valves Mounting bracket plus...

Page 18: ...W outlet elbow 15 mm C Cold water mains inlet 15 mm D Heating return 22 mm E Heating flow 22 mm A B C D E 65 70 45 70 95 95 30 Hot water outlet Condensate discharge pipe Heating drain point Gas servic...

Page 19: ...ng any of the openings of the flue terminal Note Silicone grease or other lubricants must not be used on the flue joints or seals Where a flue terminates less than 150 mm below a gutter eaves or other...

Page 20: ...y pushing the inside flue sealing collar up to the wall The hole around the flue can be made good using the flue sealing collars supplied or using a suitable sealant cement if required Fig 5 8 Fitting...

Page 21: ...he number of Alpha CD 750 or 1000 mm flue extensions required 4 Assemble the flue extensions together by locating the inner duct into the seal joint and secure each extension together with the extensi...

Page 22: ...securing the terminal and remove the terminal by pulling it from the flue assembly Remove the screw 2 in Fig 5 12 securing the terminal end section and remove the end section from the terminal ii Loc...

Page 23: ...y Flue Ensure there is a slope of approximately 3 back towards the Easy Flue Fig 5 13 Note The equivalent horizontal flue assembly length the equivalent plume management length PM length must not exce...

Page 24: ...t and correct operation of the boiler Please note that using controls that are not supplied or recommended by Alpha may invalidate the boiler warranty and may not control the boiler correctly Alpha of...

Page 25: ...parameter P7 see Section 6 13 to select the correct parameter to allow the boiler to operate with alternative control type 1 External Sensor Weather compensation feature The E Tec Plus boilers have a...

Page 26: ...e see Fig 5 4 Turn on all hot water taps and allow water to flow until no air is present Turn off taps 8 Ensure that the condensate trap has been filled with water 6 2 BOILER CONTROLS Fig 6 1 Alpha E...

Page 27: ...d the RESET button remains active on the boiler control panel along with the standby button off mode only and the display where the functioning state is shown Note If the boiler is switched off the Cl...

Page 28: ...ot water by opening a hot tap etc is sensed by the flow switch the pump starts the fan will run and the burner lights increasing immediately to its maximum output Water in the boiler is then diverted...

Page 29: ...ll have a higher noise level this is normal 6 7 FINAL COMMISSIONING 1 Allow the heating system to heat up then balance the system to achieve the necessary temperature difference across the heating flo...

Page 30: ...et point temperature Domestic hot water set point temperature External weather compensation probe temperature value flashes if negative Mains inlet temperature or FlowSmart cylinder temperature CH ret...

Page 31: ...no DHW demand use the DHW down button to set the output to minimum 0 Insert the analyser probe into the flue test point Fig 6 3 and check that the CO2 value is as specified in Section 3 1 otherwise ad...

Page 32: ...r value Confirmation is given by the numbers 88 which appear for 2 seconds Toenterthefirstdigitofthepassworduse the DHW up and down buttons to enter the second digit use the CH up and down buttons To...

Page 33: ...ump active 7 Alpha Trace heating cable enabled 8 Not used 9 FlowSmart function enabled The boiler pump can function in two ways 0 Intermittent The pump is controlled according to the heating request o...

Page 34: ...ot water request the boiler will switch to central heating mode if there is a request It is possible to set a time delay in which the boiler waits before changing back to heating mode in order to quic...

Page 35: ...e analyser manufacturers requirements 3 Competence can be demonstrated by satisfactory completion of the CPA1ACS assessment which covers the use of electronic portable combustion gas analysers in acco...

Page 36: ...2 The expansion vessel pressure test point is accessible from on top at the top left side 5 Check that the condensate trap drain pipe is connected and all joints are sound 6 Record details of the ser...

Page 37: ...els Fig 7 4 8 Remove the screws H securing the side panel I Lift the side panel and pull it forwards unhooking it from the rear panel view A in Fig 7 4 Lower the panel out and away from the top cover...

Page 38: ...trodes If they are in good condition remove any oxide deposits using a fine abrasive paper If it is necessary to replace the electrode assembly ensure a new gasket is used 3 Check that the fan is clea...

Page 39: ...e trap 9 DHW flow switch 10 Gas injector 11 Gas valve 12 DHW heat exchanger 13 Boiler drain point 14 DHW temperature sensor 15 Test points air A flue F 16 Flue temperature sensor 17 Four fixing nuts f...

Page 40: ...e 6 Re fit the ignition lead to the electrode 7 Check all the connections are sound and re commission Sections 6 3 and 6 8 8 Raise the control panel and clip into place 9 Check that the insulation on...

Page 41: ...ts and care must be taken when removing them 8 3 IGNITION AND SENSING ELECTRODE Fig 7 6 Gain access as described in Section 8 1 1 Pull off the ignition lead from the electrode 2 Remove the cap screws...

Page 42: ...e PCB cover ensure no wires are trapped and all wiring is secured Secure cover with three screws do not over tighten 6 Set the correct parameters for the correct boiler model as described in Section 6...

Page 43: ...e 6 Fit the new switch and re assemble in reverse order 7 Visually inspect for leakage after reconnecting the mains cold water supply 8 13 PRIMARY HEAT EXCHANGER Fig 7 6 Gain access and drain the boil...

Page 44: ...l and pressurise the system Refer to Commissioning Section 6 1 8 17 PUMP HEAD Fig 7 6 Gain access and drain the boiler heating circuit as described in Sections 8 1 and 8 2 1 Disconnect the two wiring...

Page 45: ...e locating lug at the top and push firmly into place Using the supplied tool and a suitable spanner turn the cartridge clockwise until the retaining lugs are locked into position 5 Pull the diverter p...

Page 46: ...M1 Y Br G Y Bk PWM GND FEED Bl Br L N B2 S4 G GY GY G Y1 Y R Br Br Bk Bl M E3 M30 Br Y Bk Br R Bl 6 1 9 1 W P Or R W Or P R W W P P Fuse 3 15 AF Vcc HS UB GND Vcc M20 Bl W R Bk Br Br R Bl W Bk 1 5 X4...

Page 47: ...n or sensor faulty Refer to fault history codes INFO menu d9 to reset by turning the boiler off and on If it will not clear replace PCB Check expansion vessel pressure 1 bar Leak in system Expansion r...

Page 48: ...air or a circuit restriction Possible wiring fault sensors incorrectly fitted system blocked Possible failure of one or both sensors Possible failure of one or both sensors Replace PCB Air in heat ex...

Page 49: ...eset the error Sr E97 1 Enter the parameter menu using the password 69 See Section 6 13 2 Parameter P6 will show 0 3 Set P6 to any value above zero save by pressing the mode button and wait for 88 to...

Page 50: ...sate connecting pipe Expansion vessel Fan Flue sampling point cap Complete boiler seal kit Hydraulic circuit seal kit Complete heat exchanger seal kit Gas pipe to fan manifold Gas pipe O ring Clip Flo...

Page 51: ...Low temperature means for condensing boilers 30 C for low temperature boilers 37 C and for other heaters 50 C return temperature Model s E Tec Plus 33 Condensing boiler YES Low temperature boiler NO...

Page 52: ...E WITH REGULATION 811 2013 Parameter value Yearly energy consumption for the hea ting function QHE 1 5 GJ Yearly electricity consumption for the domestic hot water function AEC 29 kWh Yearly fuel cons...

Page 53: ...distribution system and the dimensioning of the products in relation to building size and characteristics Seasonal space heating energy efficiency of package Seasonal space heating energy efficiency...

Page 54: ...II III I Auxiliary electricity 3 G F E D C B A A A A 27 27 27 28 27 27 27 28 30 30 30 32 33 34 35 36 36 37 38 40 39 50 55 60 65 75 80 85 100 115 123 131 130 150 160 170 163 188 200 213 M L XL XXL 3 2...

Page 55: ...efficiency is influenced by further factors such as heat loss in the distribution system and the dimensioning of the products in relation to building size and characteristics Seasonal space heating e...

Page 56: ...6 37 38 40 39 50 55 60 65 75 80 85 100 115 123 131 130 150 160 170 163 188 200 213 M L XL XXL 3 2 3 2 The energy efficiency of the package of products provided for in this fiche may not correspond to...

Page 57: ...Alpha E Tec Plus 28 and 33 Page intentionally Blank 57...

Page 58: ...re and record Gas rate m hr OR ft hr Burner operating pressure if applicable mbar OR Gas inlet pressure mbar Central heating fow temperature C Central heating return temperature C COMBINATION BOILERS...

Page 59: ...gister No Record At max rate CO ppm AND CO At min rate Where Possible CO ppm AND CO Comments Signature SERVICE 04 Date Engineer name Company name Telephone No Gas safe register No Record At max rate C...

Page 60: ...act the National Gas Emergency Service immediately on 0800 111 999 8 ELECTRICAL SUPPLY The boiler requires a 230 240 V 50 Hz supply fused at 3 A To connect a plug The colour of the wires in the mains...

Page 61: ...stem for external condensate drainage pipework incorporating an external frost thermostat should be considered 7 GAS SAFETY REGULATIONS Current Gas Safety Installation and Use Regulations It is the la...

Page 62: ...temperature is 10 C Note This is the temperature of the water supplied to the radiators and not the desired room temperature The time and temperature will still be maintained according to the setting...

Page 63: ...etween Summer or Winter settings by pressing the Mode button item 1 in Fig 1 Summer setting The boiler will only provide hot water when a tap is turned on and the central heating will not activate eve...

Page 64: ...evenoaks Kent TN15 7RS For Technical help or for Service call ALPHA HELPLINE Tel 0344 871 8764 website www alpha innovation co uk Set for use with Natural Gas Leave these instructions with the User Th...

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