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Benchmark Alpha InTec 24X, Installation And Servicing Instructions

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Benchmark Alpha InTec 24X Installation And Servicing Instructions Download Page 37

37

8.1  ILLUSTRATED WIRING DIAGRAM

8  WIRING DIAGRAMS

Gas

Valve

Br

Gy

Bk

W

W

Or

Or

Gy

Gy

R

W

Bl

Or

Bk

G

R G

Br

Bl

G/Y

R

R

Bk

W

W

G

G

R

Gy

Bl

Spark

Generator

Flame

Sensing

Electrode

Ignition

Electrodes

R

5

4

3

2

1

R

Alpha controls (optional)

Remove link

to connect

Alpha controls

Flue

Sensor

Flow

Sensor

DHW

Sensor

Heat

Exchanger

Thermal

Fuse

Overheat

Thermostat

Low voltage electrical connections

230 V  electrical connections

DHW

Flow

Switch

System

Pressure

Switch

Br

Bl

Bl

Br

W

G

Or

Bk

Br

Bl

W

G

Or

Bl

Bl

Gy

Bk

Gy

W

W

G

Gy

Br

R

Bk

Br

R

R

Gy

R

Bk

Or

G

Gy

Bl

R

Br

R

Br

Bk

R

Br

Bl

Br

R

Bl

Bl

G/Y

Bl

Gy

2

1

Colour Code

Br Brown

Bk Black

Bl Blue

R

Red

Or Orange

G

Green

G/Y Green/Yellow

W White

Gy Grey

Remove the link between terminal

block connections 1 and 2 if the

optional Alpha Climatic control or

230 V room thermostat is used.

X21

X26

50 51 52 53 54 55 56 57 58

Relay Board

(optional)

X20

X16

X4

2

4

4

2

5

1

1

5

3

3

X12

4

2

3

6 5

1

7

X18

4

2

3

6 5

1

7

8

X14

4

2

3

6
5

1

7

8

9

10

11

X7

4

2

3

6 5

1

X17

3

5

4

1 2

6

X19

2 1

X3

L N 3 4

X10

X9

X11

X15

1

1

2

2

3

3

Fuse

3.15 AF

Transformer

DHW SET

+

CH SET

+

B A

X5

12 34 5 6

X8

1

X6

R2

Alpha

Climatic Control

(optional)

+

-

Fan

8 9 10 11 12 13

1 2

L N

Room

thermostat

(optional)

Link

Supply

230 V

~ 50 Hz

Br

Bl

Boiler

Pump

Diverter

Valve

Br

DHW

CH

Bl

Bk

-UB

PW

M

GND

HS

+UB

External

Sensor

(optional)

DHW

Inlet sensor

(optional)

Alpha InTec C and X - Wiring Diagrams

Summary of Contents for Alpha InTec 24X

Page 1: ...0844 871 8764 website www alpha innovation co uk For use with Natural Gas or Propane Gas AS SUPPLIED Leave these instructions with the User Alpha InTec 24X NG G C No 47 532 45 Alpha InTec 28X NG G C...

Page 2: ...ort product faults 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 r...

Page 3: ...ed heating systems Reference should be made to DEFRA document Guide to condensing boiler installation assessment procedures for dwellings If installation is in a timber framed building refer to the In...

Page 4: ...Max primary system pressure bar Min primary system pressure bar Recommended system pressure Cold bar System pressure relief valve setting bar Expansion vessel size litres Expansion vessel charge press...

Page 5: ...8 23 6 4 8 28 0 30 6 4 3 37 82 4 8 0 18 2 85 3 99 12 3 14 3 14 10 6 10 6 9 7 0 003 29 7 20 6 26 8 18 6 20 0 18 0 3 2 26 3 28 4 4 1 37 82 3 8 0 2 4 95 9 12 11 6 13 6 13 10 5 10 5 9 7 0 003 InTec 24X I...

Page 6: ...tional Alpha Climatic control or 230 V room thermostat is used 2 5 AVAILABLE PUMP HEAD FOR CENTRAL HEATING Flow litres hr Head metres 200 600 1000 1400 800 1200 1600 400 0 0 0 5 1 0 1 5 2 0 2 5 3 0 3...

Page 7: ...odes 21 Flame sensing electrode 22 DHW temperature sensor 23 Flue sampling point 24 Gas service cock 25 Mains inlet on off valve 26 On off valve 2 off 27 Automatic by pass 28 Cyclone separator if appl...

Page 8: ...ady has a pre determined slope towards the boiler for condensate to run back towards the boiler When additional flue xtensions are used ensure the flue slopes d wnwards towards the boiler by a minimum...

Page 9: ...L B C 245 mm C B E C B E B F B C L B E F 245 mm 90 bend 1 3 metre add 45 mm to F if a jig is used L B C 245 mm 2 x 45 bends 1 8 metre Fig 3 VERTICAL FLUE OPTIONS 245 mm length includes terminal Hmax 1...

Page 10: ...be exposed to the external air and the position must allow the free passage of air across it at all times 8 A terminal must not be sited below 2 m where people have access to such as public footpaths...

Page 11: ...ble material without the need for a special thermal insulation barrier If the boiler is to be fitted in a timber f amed building it should be fitted in accordance with the Institute of Gas Engineers G...

Page 12: ...n automatic by pass is not required for the system Cyclone This is a device fitted in the heating retu n within the optional Premier Pack wall jig to remove any foreign or solid matter etc from the sy...

Page 13: ...r v Refill and chemically clean the system as inst ucted by the recommended cleaner manufacturer vi Ensure the system is flushed to rem ve any remains of the cleaner and check for leaks c As required...

Page 14: ...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 be in 15 mm copper pipe and be as short as...

Page 15: ...ing bracket plus screws and wall plugs Condensate discharge pipe Literature pack and Wall template Box 2 CD Easy Flue 500 mm or CD Easy Flue 1000 mm Both include 90 bend and horizontal flue terminal N...

Page 16: ...heating union bends supplied with the wall jig have been designed to enable the heating pipes to be routed from above and or below using the same fitting Note When soldering to the boiler union bends...

Page 17: ...ue immediately before the terminal grille onto the location provided Push the flue assembly through the 130 mm flue hole so that the collar completely passes through the wall Then pull the flue assemb...

Page 18: ...inal is positioned correctly see Fig 18 8 Make good the inside wall by pushing the inside flue sealing collar upto the all Fig 17 Fitting the flue f om inside 4 7 REDUCING THE FLUE Fig 19 When the flu...

Page 19: ...rporates the seal joint Ensure the inner duct end without the seal joint is cut so that it is 20 mm longer than the outer duct Ensure that all cuts are square and free from burrs Once assembled with t...

Page 20: ...to the terminal from outside i Remove the screws 1 in Fig 21 securing the terminal and remove the terminal by pulling it from the flue assem ly Remove the screw 2 in Fig 21 securing the terminal end...

Page 21: ...sy Flue Ensure there is a slope of approximately 3 back towards the Easy Flue Fig 22 Note The equivalent horizontal flue assem ly length the equivalent plume management length PM length must not excee...

Page 22: ...nsure that there is sufficient free cable to allow the control panel to be raised and lowered then tighten the cable clamp screws 6 Leave the control panel open until commissioning procedures have bee...

Page 23: ...between 0 75 and 1 25 bar Refer to Sections 3 8 and 3 9 Filling and Flushing the system 9 Open the cold water mains inlet valve see Fig 13 Turn on all hot water taps and allow water to fl w until no...

Page 24: ...de temperature Refer to external probe instructions for further information on this feature 6 From this moment the boiler functions automatically With no demand for heat central heating or domestic ho...

Page 25: ...ing thermostat set to maximum fully open a hot tap to check the maximum domestic hot water burner pressure In this mode the inlet gas supply pressure and CO CO2 ratio can be checked Refer to Technical...

Page 26: ...ed for 24 hours for heating or hot water the pump will automatically operate for 30 seconds 7 Explain to the User that an internal frost thermostat is fitted in the boile and that the electrical suppl...

Page 27: ...is used to measure the per ormance of the boiler refer to Fig 28 for the position of the flue sampling point If the CO CO2 ratio measured is greater than 0 003 or when other checks and comments from...

Page 28: ...metallic bristles as this might damage the injector 4 Remove any deposits from the heat exchanger coils This can be done by suction or water sprayed onto the coils Ensure all electrical components ar...

Page 29: ...on Sections 5 3 and 5 7 5 Place the front case panel in position and secure in position with the four screws previously removed see Fig 29 6 Raise the control panel and secure in position with the two...

Page 30: ...t overtighten 7 2 DRAINING THE BOILER Figs 2 13 Isolate the electricity supply and close the boiler gas service cock see Fig 13 Allow the boiler to cool 1 Heating circuit Close the central heating fl...

Page 31: ...7 7 IGNITION GENERATOR Fig 30 1 Gain access behind the front panel as described in Section 7 1 2 Remove the screw securing the air supply pipe see Fig 28 and remove the pipe 3 Disconnect all the wire...

Page 32: ...e as a replacement Note A spare fuse is supplied as shown in Fig 31 3 Re assemble in reverse order 7 12 PCB Fig 31 Note The replacement of the gas valve or PCB must be carried out by a Gas Safe regist...

Page 33: ...Carefully remove the insulation suction applied to the centre of the insulation will aid this Fit a new panel and re assemble in reverse order 7 17 CONDENSATE TRAP Figs 13 and 32 1 Gain access behind...

Page 34: ...and remove it from the boiler 7 Remove the heating fl w and return pipe retaining clips from the primary heat exchanger and pull the pipes downwards from the heat exchanger connections 8 Slide the hea...

Page 35: ...der When connecting the wiring to the new switch the polarity of the wires is not important 7 27 PRESSURE RELIEF VALVE Fig 34 1 Gain access behind the front casing and drain the boiler heating circuit...

Page 36: ...locked into position 6 Re assemble in reverse order 7 Refill and pressu ise the system Refer to Commissioning Section 5 1 7 31 EXPANSION VESSEL Fig 30 Note Check that the pressure of the new vessel is...

Page 37: ...l Gy 2 1 Colour Code Br Brown Bk Black Bl Blue R Red Or Orange G Green G Y Green Yellow W White Gy Grey Remove the link between terminal block connections 1 and 2 if the optional Alpha Climatic contro...

Page 38: ...anger Thermal Fuse X16 X4 2 4 4 2 5 1 1 5 3 3 X12 4 2 3 6 5 1 7 X18 4 2 3 6 5 1 7 8 X14 4 2 3 6 5 1 7 8 9 10 11 X7 4 2 3 6 5 1 X17 3 5 4 1 2 6 X19 2 1 X3 L N 3 4 X10 X9 X11 X15 1 1 2 2 3 3 Fuse 3 15 A...

Page 39: ...n replace primary heat exchanger Blocked or restricted primary fl w Heat exchanger air fl w blocked Flue restriction Flue sensor fault Gas valve lead connection fault Faulty gas valve Faulty PCB Flow...

Page 40: ...Heat exchanger air fl w blocked Flue restriction Flue sensor fault Pump fault Batteries require replacing Distance between boiler and climatic control too great Interference Object blocking signal met...

Page 41: ...0C 34C 28X Flue turret 26C 24X DHW fl w switch Ignition electrode Pump head Filling loop Flue turret foam seal 14L fl w regulator pink 28X Primary heat exchanger 26C 24X Primary heat exchanger 30C 28X...

Page 42: ...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 43: ...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 44: ...ons have been carefully prepared but we reserve the right to alter the specification at a y time in the interest of product improvement Alpha Therm Limited 2013 Alpha Therm Limited NepicarHouse London...

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