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Installation and Servicing

Section 1 - General

24 kW

30 kW

35 kW

Gas Supply

2H - G20 - 20 mbar

Gas Supply Connection

15 mm copper compression

Injector Size

4.15

4.65

4.9

Inlet Connection

Cold Water

15 mm copper compression

Outlet Connection

Cold Hot Water

15 mm copper compression

Flow Connection

Central Heating

22 mm copper compression

Return Connection

Central Heating

22 mm copper compression

Flue Terminal Diameter

100

Average Flue Temp-Mass Flow Rate

DHW

63ºC - 11g/s

68ºC - 13g/s

73ºC - 15g/s

Content (± 0.7)

Max. DHW

9.2%

9.3%

9.7%

Min. CH

8.5%

8.8%

Maximum Working Pressure (Sealed Systems)

bar (psi)

2.5 (36.3)

Maximum Domestic Hot Water Inlet Pressure

bar (psi) [kPa]

10.0 (145) [1000]

Minimum Domestic Hot Water Inlet Pressure*

bar (psi) [kPa]

0.8(11.6)(80)

1.3(18.9) (130) 1.3(18.9)**(130)

Minimum DHW Inlet Pressure to Operate at 0.6 bar System Pressure

All Model Sizes 0.5 bar

Electrical Supply

230 V ~ 50 Hz

Power Consumption

110

Fuse Rating

External : 3 A Internal : T4A HRC L250 V

Water Content

Central Heating litre (gal)

1.2 (0.26)

Domestic Hot Water litre (gal)

1.0 (0.22)

Packaged Weight

32.8

Lift Weight

28.5

28.6

Boiler Casing Size

Height mm

700

Width mm

395

Depth mm

278

Maximum DHW Input:

24 kW

30 kW

35 kW

Nett CV

24.3

30.4

35.4

Gross CV

33.7

39.3

Gas Consumption

2.512

3.135

3.657

111

129

Maximum DHW Output

24.2

30.3

35.3

DHW Flow Rate

l/min

9.9

12.4

14.5

At 35ºC Temp. Rise

gpm

2.2

2.8

3.2

DHW Specific Rate

l/min

11.5

14.5

16.9

gpm

2.5

3.2

3.7

oiler

Page

Make and model ......................................................... 9

Appliance serial no. on data badge ................. Front Cover

SEDBUK No. % .......................................................... 8

Controls

Time and temperature control to heating ................. 29

Time and temperature control to hot water ............. 29

Heating zone valves

................................................ n/a

TRV’s........................................................................ 12
Auto bypass .................................................................... 12

Boiler interlock .......................................................... 12

For all boilers

Flushing to BS.7593 ................................................. 15

Inhibitor ........................................................................... 15

Central heating mode

Heat input ...................................................to be calculated

For assistance call Technical Helpline

01482 498663

Page

Burner operating pressure ...................................... n/a

Central heating flow temp.

...........measure and record

Central heating return temp. ........measure and record

For combination boilers only

Scale reducer ........................................................... 15

Hot water mode

Heat input ............................................to be calculated

Max. operating burner pressure .............................. n/a

Max. operating water pressure ........ measure & record

Cold water inlet temp ...................... measure & record

Hot water outlet temp. ..................... measure & record

Water flow rate at max. setting

........ measure & record

For condensing boilers only

Condensate drain ................................................25-26

For all boilers:

Complete, sign & hand over to customer

For UK, to comply with Building Regulations Part L1 (Part 6 in Scotland) the boiler should be fitted in accordance with the

manufacturer’s instructions. Self-certification that the boiler has been installed to comply with Building Regulations can be

demonstrated by completing and signing the Benchmark Commissioning Checklist.

Before installing this boiler, read the Code of Practice sheet at the rear of this book.

BENCHMARK COMMISSIONING CHECKLIST DETAILS

NOTE TO THE INSTALLER: COMPLETE THE BENCHMARK

COMMISSIONING CHECKLIST AND LEAVE THESE

INSTRUCTIONS WITH APPLIANCE

Natural Gas Only

Destination Country:

LOGIC COMBI

BOILER SIZE

G.C. Applicance No

(Benchmark No.)

47-349-93

47-349-94

47-349-95

Содержание LOGIC COMBI2 C24

Страница 1: ...ire Do not use reconditioned or copy parts that have not been clearly authorised by Ideal Heating For the very latest copy of literature for specification and maintenance practices visit our website idealheating com where you can download the relevant information in PDF format October 2022 UIN 228296 A06 INSTALLATION SERVICING LOGIC COMBI2 C24 C30 C35 ...

Страница 2: ...no Equipped with a Supplementary Heater n a n a no no no Combination Heater n a n a yes yes yes Nominal Heat Output for Space Heating Full Load P4 kW 24 3 24 3 24 3 Part Load P1 kW 8 8 8 Auxiliary Electricity Consumption Full Load elmax kW 0 046 0 027 0 026 Part Load elmin kW 0 013 0 01 0 012 Standby PSB kW 0 002 0 003 0 002 Seasonal Space Heating Energy Efficiency Full Load ƞ4 90 90 90 Part Load ...

Страница 3: ...e products in relation to the building size and its characteristics Collector Size in m2 Tank Volume in m3 Collector Efficiency in Tank rating A 0 95 A 0 91 B 0 86 C 0 83 D G 0 81 Solar Contribution from fiche of solar device Seasonal Space Heating Energy Efficiency of Package TOTAL A B C Seasonal Space Heating Energy Efficiency Class of Package III x IV x x 0 9 x 100 x G G F E D C B A A A A 30 30...

Страница 4: ...S FOR THE INSTALLER WARNING Risk of injury or death CAUTION Risk of damage to objects Table of Acronyms CH Central Heating DHW Domestic Hot Water TRV Thermostatic Radiator Valve PRV Pressure Relief Valve IE Ireland ETCI Electro Technical Council of Ireland BS British Standard WRAS Water Regulations Advisory Scheme SAP Standard Assessment Procedure IEE Institution of Electrical Engineers UKCA UK Co...

Страница 5: ...ining the Boiler 36 3 4 Boiler Front Panel Removal Replacement 37 3 5 Flue Manifold Removal Replacement 37 3 6 Fan and Venturi Assembly Removal and Cleaning 38 3 7 Burner Removal and Cleaning 39 3 8 Cleaning the Heat Exchanger 39 3 9 Ignition Detection Electrode Replacement Inspection 40 3 10 Cleaning the Condensate Trap 40 3 11 DHW Filter DHW Flow Regulator Cleaning Replacement 41 3 12 Burner Inj...

Страница 6: ...d Water 15 mm copper compression Outlet Connection Cold Hot Water 15 mm copper compression Flow Connection Central Heating 22 mm copper compression Return Connection Central Heating 22 mm copper compression Flue Terminal Diameter mm 100 Average Flue Temp Mass Flow Rate DHW 63ºC 11g s 68ºC 13g s 73ºC 15g s CO2 Content 0 7 Max DHW 9 2 9 3 9 7 Min CH 8 5 8 5 8 8 Maximum Working Pressure Sealed System...

Страница 7: ...re record Cold water inlet temp measure record Hot water outlet temp measure record Water flow rate at max setting measure record For condensing boilers only Condensate drain 25 26 For all boilers Complete sign hand over to customer For UK to comply with Building Regulations Part L1 Part 6 in Scotland the boiler should be fitted in accordance with the manufacturer s instructions Self certification...

Страница 8: ... is a demand for CH the heating system is supplied at the selected temperature of between 30o C and 80o C until DHW is drawn off The full output from the boiler is then directed via the diverter valve to the plate heat exchanger to supply a nominal DHW draw off of 24 9 9 l min at 35ºC temperature rise 30 12 4 l min at 35ºC temperature rise 35 14 5 l min at 35ºC temperature rise The DHW draw off ra...

Страница 9: ...ework BS 7593 2019 Code of practice for the preparation commissioning and maintenance of domestic central heating and cooling water systems Health Safety Document No 635 The Electricity at Work Regulations 1989 The manufacturer s notes must NOT be taken in any way as overriding statutory obligations IMPORTANT This appliance is UKCA CE certificated for safety and performance Do not connect external...

Страница 10: ... is a universal fitting to allow use of different brands of pipework Refer to Section 2 15 Compartment Installations A boiler installed in a compartment does not require ventilation However A boiler installed in a compartment must provide adequate clearances for servicing The compartment should also be fitted with a suitable label in accordance with current standards Refer to Section 1 14 1 8 AIR ...

Страница 11: ...nce is still required with the cupboard door open to allow for servicing Bottom Clearance Bottom clearance after installation can be reduced to 5 mm This must be obtained with an easily removable panel to provide the 100 mm clearance required for servicing 395 75 61 36 21 33 32 43 5 94 Refer to Section 2 17 278 700 100 Flue terminal 2 5 2 5 from case Underside View Dimension to Wall CH Flow DHW Ou...

Страница 12: ...ve 1 15 SYSTEM REQUIREMENTS CENTRAL HEATING Water Flow Rate and Pressure Loss Max CH Output kW 24 2 Water Flow Rate l min 17 3 gal min 3 8 Temperature Differential o C 20 Head available for System m w g 3 4 ft w g 11 1 PRV setting bar 3 0 Vessel charge pressure bar 0 5 to 0 75 System pre charge pressure bar None 1 0 System volume Expansion vessel litres volume litres 25 1 6 1 8 50 3 1 3 7 75 4 7 5...

Страница 13: ...e with the manufacturers instructions 2 If the boiler is installed in an existing system any unsuitable additives MUST be removed by thorough cleansing BS7593 2019 details the steps necessary to clean a domestic heating system 1 16 SYSTEM REQUIREMENTS DHW 4 If the shower mixer valve does not incorporate non return valves the following must be followed a The cold inlet to the boiler is fitted with ...

Страница 14: ...s Cock 205 Gas Valve 206 Pipe Gas Injector 211 Injector Assy 214 Venturi 215 Fan 217 Burner 218 Gasket Burner 219 Sump Clean Out Cover 223 Flue Manifold 224 Flue Manifold Top 227 Clamp Retaining Flue Turret 228 Hose Condensate Internal 229 Condensate Trap 231 Condensate Outlet Connection 239 Condensate Drain Tube 302 PCB 306 Ignition Detection Electrode 308 Ignitor Unit 309 Thermistor 313 Ignition...

Страница 15: ...10 1x Pipe Filling Loop 11 1x Valve DHW Inlet 12 2x Pipe CH Flow Return 13 1x Valve Filling Loop 14 1x Valve CH G3 4 x 22 mm Filling Loop 15 1x Cap Female 16 1x Valve CH G3 4 x 22 mm 17 1x Pipe DHW Inlet 18 1x Nut G1 216 Brass Flat 19 1x Gas Cock 20 1x PRV Clip Accessory Bag Contents 21 9x Washers 22 2x Wall Plugs 23 2x Screws 24 1x Flue Clamp Screw 22 23 21 1 2 3 4 6 5 Unpack and check the conten...

Страница 16: ...all Side flue only 127 mm diameter hole Rear flue only 127 mm diameter hole Refer to Section 2 8 1 Check all of the hole positions before drilling 2 Cut the flue hole with a 127 mm core boring tool ensure the hole is square to the wall 3 Drill the 2 mounting holes with a 7 5 mm 8 mm masonry drill and insert the plastic plugs provided 4 Locate 2 No 14 x 50 mm screws in the wall mounting plate one a...

Страница 17: ...ector Weather collar Ideal part no 152258 Ideal part no 0 5 m 211037 1 m 203129 2 m 211038 Balcony flue kit Ideal part no 208177 Soffit kit Ideal part no 211302 Raised horizontal flue kit Ideal part no 208290 pitched roof 0 6 m 208171 0 8 m 217442 Ideal part no WARNING It is critical that products of combustion cannot re enter the building The flue terminal must always have a free passage of air C...

Страница 18: ...12 Horizontally from a terminal wall 300 mm 13 Horizontally from an adjacent window 600 mm 14 Facing an opening into an adjacent building 2000 mm 15 At an angle to the boundary 90 300 mm 45 600 mm 16 Parallel to a boundary 300 mm 17 Below ground level open light well a Below ground 1 000 mm b Above floor level 300 mm c From side 300 mm d From facing surface 600 mm Only one reduction down to 25mm i...

Страница 19: ... 1000 3 2 1 600 3 4 5 1 2 2000 Opening in adjacent building 14 3 1 2 300 At an angle to the boundary 15 2 Parallel to the boundary 16 Facing the boundary 8 6 0 0 1 300 3 All measurements mm Boundary Boundary 600 Height Difference A Less than 300 B 300 Greater than 300 B 1500 300 625 fixed 2000 600 2000 690 Fixed Separation Distance B Height Difference A 300 600 600 2000 All measurements mm Refer t...

Страница 20: ...ure the rubber seal is not damaged and fitted correctly on the appliance manifold 3 Firmly hold the flue and push the turret on until it has travelled 30 mm ensuring the flue has not rotated or moved forward 4 Push the turret into the manifold ensuring the upper plastic lip is flush with the top of the manifold 5 Fully engage the clamp location section into the manifold location hole and rotate do...

Страница 21: ...pull back the flue until Mark 1 is flush with the inner wall surface 9 Hold the flue steady and push the inner wall seal towards the wall until Mark 2 is just visible FITTING THE FLUE THROUGH THE WALL External Installation 1 Follow steps 1 5 from above 2 Push the flue through the 127 mm core drilled hole from the outside 3 Return inside the property and fit the inner wall seal to the flue 4 Pull t...

Страница 22: ...lamp on the top face of the flue manifold and push it horizontally backwards Locate both clamp lugs into the flue manifold and secure to the flue manifold with the M5 retaining screw nm8739 min 25 o max 45 o MAX LENGTH 7 5m BOILER Flue Terminal weather collar pitched roof weather collar flat roof X 5 Push extension duct if required supplied separately into vertical connector Note Ensure turret sam...

Страница 23: ...e pump recommended by the boiler or pump manufacturer External Drain Connections The use of an externally run condensate drainage pipe should only be considered after exhausting all internal termination options as described previously An external system must terminate at a suitable foul water discharge point or purpose designed soakaway If an external system is chosen then the following measures m...

Страница 24: ...erminated and cut at 45º 43 mm 90º male female bend Water weather proof insulation 68 mm Ø PVCU Strap on fitting Boiler with 75 mm sealed condensate trap Boiler with 75 mm sealed condensate trap Min Ø 19 mm Internal pipe Min Ø 30 mm Internal pipe Water Weather proof insulation Max 3 m external pipework Limestone chippings 500 300 25 2 rows of three Ø12 mm holes 25 mm centres 50 mm from the bottom ...

Страница 25: ...y the heat Install the condensate pipe as follows 1 Make sure that the 15 mm Ø copper pipe is cut perpendicular to the pipe 2 Make sure that the pipe is not damaged and clean and free from burs 3 Using pliers put the clip over the grommet Continue to hold the clip open Note Do not release the clip until step 5 see below 4 Push the copper pipe into the grommet minimum of 15 mm Make sure that the pi...

Страница 26: ...etween 1 to 1 5 bar 6 Turn the filling loop handle green B back to the closed vertical position 7 Turn the CH Return handle black C and the DHW Inlet handle blue to the open vertical position 8 Disconnect the filling loop from the DHW Inlet valve and fit the grey cap to the open end 9 Fit the Plug to the free end of the filling loop Top Up 1 Connect the filling loop ensuring the washers are in pla...

Страница 27: ...Wiring external to the boiler must follow current I E E BS7671 wiring regulations and local regulations The boiler must be connected to a permanent live power supply Accessing the installer wiring 1 Isolate the mains supply from the boiler 2 Remove the front panel Refer to Section 3 4 3 Swing down the control box into the service position unclip and swing back the installer wiring cover and latch ...

Страница 28: ...erture 4 Connect the external cable from the OpenTherm Programmable Room Stat on the RHS of the boiler installer connections labelled OpenTherm Frost Protection If parts of the pipework run outside the house or if the boiler will be left off for more than a day or so then a frost thermostat should be wired into the system This is usually done at the programmer in which case the programmer selector...

Страница 29: ...Spark Generator 1 2 3 Fan 2 3 4 Pump 1 2 3 3 2 1 2 Gas Valve 1 Diverter Valve 2 3 4 5 1 3 2 1 X7 1 2 3 4 5 6 7 8 X1 X2 X3 X4 X5 X6 X8 X9 1 2 3 1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 1 2 3 4 5 5 4 3 2 1 X10 br b r bk r br bk b bk b r r b Chassis Earth bk b b y 4 bk p r p y bk p y bk b bk r or bk bk v bk y b r bk v bk bk g y g y g y g y Return Thermistor Flow Thmr DHW Thmr b...

Страница 30: ...cess is completed The flow chart is provided on page 67 A Electrical Installation Complete preliminary electrical system checks B Gas Installation 1 The whole of the gas installation including the meter should be inspected and tested for tightness and purged in accordance with the recommendations of BS 6891 2 Purge air from the gas installation by the approved methods only General The combustion f...

Страница 31: ...When the burner is established the flame symbol E will be shown on the display and the current flow temperature will be shown in the large digits underneath the radiator symbol DOMESTIC HOT WATER 11 With the boiler firing rotate the DHW Temp Knob A clockwise until a target of 65 C is shown and fully open a DHW tap The boiler should continue to run and the current DHW temperature will be shown in t...

Страница 32: ... Close all taps except the furthest one from the boiler and check that the boiler is firing at maximum rate This is factory set to give a DHW temperature rise of approximately 35 C at the flow rate stated on page 10 under operation 3 Reduce the DHW draw off rate to about 3 l min 0 7gpm and check that the boiler modulates to deliver DHW at approximately 65 C 4 Close the DHW tap and check that the m...

Страница 33: ... to the design requirement 6 Balance the system 7 Check the condensate drain for leaks and check that it is discharging correctly 8 Finally set the controls to the User s requirements Note The pump will operate briefly as a self check once every 24 hours in the absence of any system demand WATER TEMPERATURES Temperatures can be selected using the CH and DHW thermostats Temperature Knob CH Flow Tem...

Страница 34: ... fault is indicated refer to Fault Codes in the User Guide 6 Explain and demonstrate the function of timers and temperature controls radiator valves etc for the economic use of the system After completing the installation and commissioning of the system the installer should hand over to the householder by the following actions 2 30 ACCESSING THE INSTALLER MODE Refer to Page 62 Refer to Section 2 1...

Страница 35: ...Check all water and gas joints for signs of leakage Remake any suspect joints ensuring a gas tightness check is carried out if applicable and the water system is correctly refilled vented and re pressurised 2 Proceed to IMPORTANT IMPORTANT 1 If for any reason the condensate trap has been removed ensure the trap is refilled with water before re assembling 2 After completing the servicing or exchang...

Страница 36: ... boiler 3 3 DRAINING THE BOILER DOMESTIC HOT WATER CIRCUIT 1 Close all the DHW water isolating valves on the boiler inlet 2 To drain the domestic hot water circuit As there is no direct drain for the domestic hot water circuit depending on the location of the boiler opening the lowest hot water tap may drain this circuit However it must be noted that some residual water will be released during rep...

Страница 37: ...anel onto the top retaining clips 4 Push the panel until the 2 bottom spring clips engage ensuring the 2 knobs and 2 buttons line up with the holes in the front panel 5 Re tighten the two retaining screws View from bottom of boiler View from top of boiler 1 2 3 1 Remove the two sump cover retaining screws 2 Remove the sump cover 3 Lift the manifold upwards to clear the sump 4 Move the manifold to ...

Страница 38: ...crews and release the nozzle assembly 6 Inspect the injector for blockage or damage 7 Clean the outside of the injector and use a small flue brush to clean the injector hole Do not use anything abrasive such as a file 8 Remove the screw and twist venturi anti clockwise to remove venturi assembly noting the orientation of the venturi in relation to the fan body Injector Nozzle 9 Inspect fan outlet ...

Страница 39: ...he left hand side of the boiler once it is in the vertical position 5 Carefully brush the ceramic burner with a soft non metallic bristle brush 1 1 Place thumb here Insert two fingers 1 SCAN for video 3 8 CLEANING THE HEAT EXCHANGER 1 Replace the sump cover prior to the water flush process 2 Thoroughly flush the heat exchanger by pouring water into the top of the combustion chamber ensuring the fu...

Страница 40: ...burner Refer to Section 3 13 4 When servicing the boiler inspect the condition of the electrode and check the dimensions shown If there is damage to the electrode continue to follow steps below for replacment 5 Unplug the ignition lead from the electrode 6 Remove the earth lead from the electrode 7 Remove the 2 screws holding the electrode to the combustion chamber 8 Remove the electrode 9 Fit the...

Страница 41: ...d to remove the cartridge Be prepared for some water release 3 Using a pair of pliers pull out the plastic filter flow regulator 4 Clean or replace filter as necessary 5 Reassemble 6 Reestablish the Cold mains supply to the boiler Refer to Section 3 3 Refer to Section 3 4 3 Refer to Section 3 6 3 12 BURNER INJECTOR REPLACEMENT SCAN for video 3 13 BURNER REPLACEMENT Refer to Section 3 2 3 7 ...

Страница 42: ...w thermistor and reassemble ensuring that the thermistor is fully engaged and the clip is correctly located Refer to Section 3 2 2 3 15 SPARK GENERATOR REPLACEMENT 1 Disconnect the leads from the spark generator 2 Gently push down the generator to release the top clip from the gas valve mounting bracket 3 Lift the spark generator up and out of the bottom retaining location point Refer to Section 3...

Страница 43: ...l 8 Ensure all gas valve connections are gas tight with a gas soundness check up to the gas control valve Refer to Section 3 2 Refer to Section 3 19 3 5 3 17 DIVERTER VALVE ACTUATOR REPLACEMENT Refer to Section 3 2 Note All spares will be delivered in mid position Refer to Section 3 10 To remove the motor 1 Remove the condensate trap 2 Press Down on the hot keys until the diverter valve mid positi...

Страница 44: ...s shown 12 Press Restart 13 Rotate the CH Temperature Knob until F9 n is shown 14 Press Restart 15 Rotate the Temperature Knob until the appropriate boiler output is shown 24 kW 30 kW or 35 kW Press Restart 16 The boiler type C gas type n output 24 30 35 and parameter set number will be shown in rotation If this is OK press Restart to complete the configuration otherwise switch mains power off to ...

Страница 45: ...nt see section 2 3 lower the control panel and remove the control box cover 3 Ensuring there is no pressure in the system unclip the C clip from the flow pipe port and remove the capillary connection together with O ring 4 Releasing the two retaining clips on the pressure gauge ease the pressure gauge through the front of the control panel 5 Fit the new pressure gauge from the front of the lower c...

Страница 46: ... new air vent joint Air Vent Cap Refer to Section 3 31 Refer to Section 3 2 Refer to Section 3 3 1 Drain the boiler 2 Remove the trap and rubber pipe 3 Pull out and remove the clip retaining the PRV 4 Lift out the PRV pipe assembly 5 Remove the pipe and transfer to the new PRV 6 Reassemble ensuring the retaining clip is correctly fitted 7 Check the operation of the PRV by raising the water pressur...

Страница 47: ...twater tap checking for leaks 1 Drain the boiler 2 Remove condensate trap 3 Remove the 2 hex screws securing the plate heat exchanger to the composite housings 4 Manoeuvre the plate heat exchanger out of the top LH or centre of the controls area Be aware of any water spillage 3 25 DHW PLATE HEAT EXCHANGER REPLACEMENT 5 Fit the new plate heat exchanger using the new o rings supplied Note Ensure tha...

Страница 48: ...pe 10 If required remove expansion vessel connection hose Refer to Section 3 31 11 Remove the DHW inlet and CH return connection situated beneath the boiler 12 Remove the four torx head screws fixing the return manifold to the boiler sheet steel base 13 Lift the manifold assembly and remove from boiler 14 Twist and remove the DHW manifold 15 Remove the two diverter valve body fixing screws and wit...

Страница 49: ... Be aware of water spillage 5 Fit the new pump head 6 Refill the boiler Refer to Section 2 17 3 3 28 CH WATER PRESSURE SWITCH REPLACEMENT 1 Drain the boiler 2 Pull off the two electrical connections 3 Using a suitable tool pull out the metal retaining clip 4 Carefully withdraw the pressure switch 5 Fit the new pressure switch and reassemble Ensuring that the O ring is fitted replace clip 6 Refill ...

Страница 50: ...oiler 2 Unplug the electrical lead 3 Remove the clip from the flow pipe and remove the thermistor 4 Fit the new thermistor ensure O ring is fitted and replace clip 3 29 FLOW THERMISTOR REPLACEMENT Refer to Section 3 2 Refer to Section 3 3 Refer to Section 2 17 5 Reassemble 6 Refill the boiler 2 3 ...

Страница 51: ...Remove the condensate rubber pipe Refer to Section 3 10 No 2 14 Remove the two heat exchanger fixing screws 15 Remove the heat exchanger slide out of location bracket 16 If replacement sump required Rotate heat exchanger assembly 180º Place new sump onto heat exchanger ensuring correct orientation and seal is in place Then gently apply pressure to the base of the sump at each tab fixing point and ...

Страница 52: ...essel water connection pipe and remove the pipe 7 Support the expansion vessel and unscrew the 2 screws from the securing bracket located on the top of the boiler and remove Note the position of the bracket on the vessel 8 Remove the expansion vessel 9 Fit the new expansion vessel 10 Reassemble in reverse order ensuring the clip and the seal is in place 11 Refill the boiler and check for leaks Ref...

Страница 53: ...ns Voltage Contact Electricity Provider F 09 PCB Fault Replace PCB L 0d Go to Section 4 3 Ignition Lockout Blocked Flue Condensate dU Diverter Valve in midposition for service press Restart to end No CH but HW OK Go to Section 4 11 No HW but CH OK Go to Section 4 12 No Display Go to Section 4 13 F 0C DHW Thermistor Fault Go to Section 4 15 F 14 High Mains Voltage Contact electricity provider F 0t ...

Страница 54: ...ES Is the Gas Pressure available at the Boiler Inlet 18 mbar Check the electrode and associated harness for continuity visual condition and position Check if the condensate pipe is blocked Replace as necessary NO Check gas supply and rectify fault NO YES Is approx 24 V DC supply available at the Gas Valve YES Check spark generator and associated harness for continuity and visual condition Are thes...

Страница 55: ... as necessary NO Check gas supply and rectify fault NO YES Is 24Vdc supply available at the Gas Valve while the flame is on YES Check spark generator and associated harness for continuity and visual condition Are these functioning correctly YES Check electrode and associated harness for continuity visual condition and position Are these functioning correctly YES Check trap and condensate drain pip...

Страница 56: ... FAULT Disconnect the wiring from the Flow Thermistor Check the resistance using a suitable multimeter connected across the Thermistor s terminal pins Is the Thermistor value correct YES Is the wiring securely connected to the low voltage 6 way connector at the front left hand side of the PCB YES Replace PCB Fit a new Thermistor NO Securely connect the wiring to the PCB Is the wiring securely conn...

Страница 57: ...or Check the resistance using a suitable multimeter connected across the Outside Sensor s terminal pins Temperature Resistance kΩ 0 o C 31 0 35 0 15 o C 15 0 16 5 30 o C 7 7 8 5 Is the Outside Sensor value correct YES YES Is the wiring securely connected between the incoming terminal block boiler connection of the Outside Sensor and the PCB Replace PCB Fit a new Outside Sensor NO Securely connect ...

Страница 58: ... YES NO Open the Radiator Valves Is there 230Vac at Room Stat Timer YES NO No voltage from Timer Room Stat This is not a boiler fault Ensure voltage is supplied to boiler by rectifying external wiring Replace the Divertor Valve YES If an OpenTherm Room Stat is not connected is there a link wire across the OpenTherm connections NO Connect a link wire across the OpenTherm connections L N COMBI HEAT ...

Страница 59: ...nd re fit diverter valve actuator head Is boiler DHW OK NO Change diverter valve motor NO Are hot cold pipe work crossed NO Remove turbine check for debris in turbine filter Replace turbine if necessary NO Adjust flow rates to achieve 35 C temp rise and check filter fitted in turbine is not blocked with debris NO Reconnect wiring or replace wiring harness if no continuity Correct pipe work YES NO ...

Страница 60: ...pen YES NO Open isolation valves Are radiator valves open YES NO Check pump wiring if Ok replace pump Check for system blockages 4 15 F 0C DHW THERMISTOR FAULT Disconnect the DHW thermistor electrical connection Check the resistance using a suitable multi meter connected across the thermistor s terminal pins Temperature Resistance kΩ 25 o C 9 7 10 3 60 o C 2 4 2 6 Is the thermistor value correct Y...

Страница 61: ...eal Failure to do so could affect safety or performance of this appliance Comprehensive spares parts information and details of approved Ideal Parts Distributors are available on idealparts com Our Parts team are also available to help with your Ideal Spare Parts enquiries on 01482 498665 When calling and to ensure we can provide you with the most accurate parts information please ensure you have ...

Страница 62: ...62 Installation and Servicing Section 6 Benchmark to Commissioning ...

Страница 63: ...uld be made aware it is ultimately their responsibility to register with the manufacturer within the allotted time period It is essential that the boiler is serviced in line with the manufacturers recommendations at least annually This must be carried out by a competent Gas Safe registered engineer The service details should be recorded on the Benchmark Service and Interim Boiler Work Record and l...

Страница 64: ...ate Gas rate for combination boilers complete DHW mode gas rate m3 hr or ft3 hr Central heating output left at factory settings Yes No If no what is the maximum central heating output selected kW Dynamic gas inlet pressure mbar Central heating flow temperature C Central heating return temperature C System correctly balanced rebalanced Yes COMBINATION BOILERS ONLY Is the installation in a hard wate...

Страница 65: ...y test is required on every annual service in accordance with the manufacturers instructions and BS 7593 It is only acceptable to not have undertaken this if the service engineers attendance visit was in between annual services to attend a non water facing component SERVICE INTERIM WORK ON BOILER delete as appropriate Date Engineer name Company name Telephone No Gas Safe registration No Max rate C...

Страница 66: ... from natural gas to LPG separate guidance is provided with the conversion kit supplied and this must be followed PRIOR TO CO LEVEL AND COMBUSTION RATIO CHECK The installation instructions must have been followed gas type verified and gas supply pressure gas rate checked as required prior to commissioning As part of the installation process ESPECIALLY WHERE A FLUE HAS BEEN FITTED BY PERSONS OTHER ...

Страница 67: ... and supported as per instructions Check that flue and flue terminal are not obstructed Check that no seals e g Those on flue extensions have been displaced during installation Rectify if necessary Turn off appliance and call Ideal Technical Helpline for advice The appliance must not be commissioned until problems are identified and resolved If commissioning cannot be fully completed the appliance...

Страница 68: ...68 Notes Installation and Servicing ...

Страница 69: ...69 Notes Installation and Servicing ...

Страница 70: ...Ideal Technical Helpline 01482 498663 Ideal Consumer Helpline 01482 498660 Ideal Parts 01482 498665 idealheating com Ideal Boilers Ltd pursues a policy of continuing improvement in the design and performance of its products The right is therefore reserved to vary specification without notice At Ideal Heating we take our environmental impact seriously therefore when installing any Ideal Heating pro...

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Содержание LOGIC COMBI2 C24

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