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Alpha CD90S/115S - Wiring Diagram

WIRING DIAGRAM

Optional controls - Note: maximum 24 volt only. Do not connect 230/240 volts

Gas valve

Pump

Display

Return

temperature sensor

Heating flow

temperature sensor

Overheat

thermostat

Flue overheat

thermostat

System pressure

switch

Fan

External

probe

Diverter

valve

motor

Cascade

regulator

DHW

temperature

sensor

Room

thermostat

Summer

switch

External pump

Max 1 A

Ignition electrodes

Supply

230/240 V ~ 50 HZ Fused at 2 A

Selector

Fuse

F 2 A

Transformer

Flame sensing

electrode

NOTE: to apply an external

room thermostat, connect it

to the terminals F & E

removing the link.

Brown

Black

Blue

Red

Orange

G/Y

Green/Yellow

White

Grey

Purple

W/Bl

White/Blue

W/Br

White/Brown

X85

X84

X86

Flue

temperature sensor

Содержание 115S

Страница 1: ...igh Efficiency Condensing System Boilers For use with Natural Gas or Propane Gas LPG Leave these instructions with the User 0051 Nepicar House London Road Wrotham Heath Sevenoaks Kent TN15 7RS For Tec...

Страница 2: ...nvironment i e Approved Document L1 Building Standards Scotland Consolidation Regulations issued by the Scottish Development Department UK Water Regulations Byelaws Scotland Health Safety Document No...

Страница 3: ...7 771 109 0 371 908 120 5 411 200 109 2 372 590 5 700 4 2 14 0 MIN 29 4 100 313 28 8 98 256 32 6 111 200 29 0 98 948 1 750 1 1 36 7 Central Heating Heat Input Hs kW Gross Btu h Heat Input Hi kW Net Bt...

Страница 4: ...rk Gap Electrical Enclosure Degree of Moisture Protection 230 240 V 50 Hz 3 A 370 W 390 W F2A T2A T4A 3 to 4 mm IPX5D Alpha CD90S 115S Technical Data 2 8 PERFORMANCE DATA CO2 content 0 2 Natural Gas M...

Страница 5: ...al Diverter valve motor Optional Summer switch Optional Analog input 0 10 Volt Optional P Q N L 6 2 3 LINK Room thermostat Optional 230 240 V 50 Hz only Maximum 24 V connection only Note Do not connec...

Страница 6: ...eat exchanger 12 Flue hood 13 Air inlet sampling point 14 Flue sampling point Fig 3 15 Automatic air vent 16 Primary flow temperature sensor 17 Primary return temperature sensor 18 Overheat thermostat...

Страница 7: ...fitted with a supply cable however if it is necessary to fit a cable use PVC insulated cable not less than 0 75 mm 24 x 0 2 mm to BS 6500 Table 16 The boiler should be connected to a fused three pin...

Страница 8: ...2 Failure to use the correct Alpha flue components with the boiler will invalidate the boilers CE approval guarantee and may be unsafe Seals for flue elements If lubrication of components already perf...

Страница 9: ...nt to 2 1 m of flue length 45 bend is equivalent to 1 3 m of flue length Concentric flue 80 125 mm dia Lmax 10 m CD90S 7 m CD115S 90 bend is equivalent to 1 9 m of flue length 45 bend is equivalent to...

Страница 10: ...ve ground roof or balcony level H From a surface or boundary facing the terminal I From a terminal facing the terminal J Above an opening air brick window etc K Vertically from a terminal on the same...

Страница 11: ...ansion vessel must be fitted in the position shown in Fig 8 To check correct operation of the expansion vessel the system pressure should not be more than 3 5 bar when the system is at maximum operati...

Страница 12: ...9 9521133 or Sentinel Tel 0151 4209563 The system should be flushed in accordance with BS 7593 The following procedures are recommended 1 Installing onto a new system a Fill the system vent at high po...

Страница 13: ...of 3 m Termination should be into an external gulley or soakaway as shown in Figs 10 and 11 Note All pipework must have a continuous fall see Figs 10 and 11 from the boiler and must be of an acid res...

Страница 14: ...127 mm dia for concentric flue Use the centre line positions given on the flue template 5 Lift the boiler and locate it on the mounting hooks Note When handling or lifting always use safe techniques...

Страница 15: ...he female socket with lip seals of the previously installed component this will ensure a secure fit and seal of the joints Ensure all joints have the seal located correctly and the tape supplied is ap...

Страница 16: ...to the inside and outside of the wall To install extensions or other flue components proceed as follows fit the male end smooth of the concentric pipe or concentric elbow up to the stop on the female...

Страница 17: ...e mains supply cable through the cable clamp and connect as follows Brown to L Blue to N and Green Yellow to Ensure correct polarity Note Ensure that the length of the earth wire is such that if the s...

Страница 18: ...e system by manually operating the drain point see Fig 3 until the system design pressure is obtained The system design pressure cold should be between 0 75 and 1 25 bar Refer to Sections 3 9 and 3 10...

Страница 19: ...ed The first two figures indicate the parameter number the last two give the setting value To change the boiler settings proceed as follows 1 Press the MODE key once to enter parameter mode using the...

Страница 20: ...oiler adjustment parameters with factory settings To modify the parameters reserved for the Installer it is necessary to enter an access code which can be supplied on request To enter the code 1 Press...

Страница 21: ...ysteresis modulation with DHW OFF Hysteresis measurement with DHW ON Hysteresis measurement with DHW OFF Heating mode timer DHW timer DHW heating mode transition timer Max time with DHW prioritised Ca...

Страница 22: ...nly be carried out by Gas Safe registered personnel 4 Ensure that the boiler controls are set to the User s requirements 5 Tell the User about the sealed system pressure 6 Tell the User that if the el...

Страница 23: ...ble then all Sections 6 1 6 2 6 3 and 6 4 must be carried out 6 1 IMPORTANT NOTES PRIOR TO SERVICING 1 Check the flue terminal outside and ensure it is not blocked 2 Run the boiler and check the opera...

Страница 24: ...in Section 6 2 4 Disconnect the gas supply pipe union from the burner manifold 5 Remove the two screws securing the fan assembly to the combustion chamber front 6 Remove the pressure tube 7 Disconnec...

Страница 25: ...return NTC 10 Venturi housing 11 Venturi 12 Injector 13 Fan 14 Transformer 15 Condensate drain trap 16 Pressure switch 17 Safety valve 4 bar 18 PCB 19 Condensate drain pipe 20 Sample points A air F fl...

Страница 26: ...ing and height of the electrodes Refer to Fig 25 10 Unscrew the condensate trap drain cap to remove any deposits Note Before removing the cap ensure that the water released from the trap can be contai...

Страница 27: ...rnal probe Diverter valve motor Cascade regulator DHW temperature sensor Room thermostat Summer switch External pump Max 1 A Ignition electrodes Supply 230 240 V 50 HZ Fused at 2 A Selector Fuse F 2 A...

Страница 28: ...cal connections Check electrical connections Check PCB fuses Check primary flow thermostat Check flue thermostat Check water circulation Check for air in the system Check water circulation Check for a...

Страница 29: ...ture difference between system flow greater than 40 C DHW sensor anomaly short circuit DHW sensor anomaly open Fan start stand by insufficient air flow rate Ionisation current loss during burner ignit...

Страница 30: ...hanger to manifold CD90S Pipe heat exchanger to manifold CD115S Pipe gas valve to burner manifold CD90S Pipe gas valve to burner manifold CD115S LH side panel RH side panel Tundish Pipe tundish adapte...

Страница 31: ...reducer has been fitted FOR DOMESTIC HOT WATER MODE MEASURE AND RECORD THE FOLLOWING Gas rate m hr ft hr Maximum burner operating differential pressure if applicable N A mbar Cold water inlet tempera...

Страница 32: ...e Engineers Name Company Name Telephone No Gas Safe ID card serial No Comments Signature SERVICE 6 Date Engineers Name Company Name Telephone No Gas Safe ID card serial No Comments Signature SERVICE 7...

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