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When replacing any part on this appliance, use only spare parts that you can be
assured conform to the safety and performance specification that we require.  
Do not use reconditioned or copy parts that have not been clearly authorised by Ideal.

For the very latest copy of literature for specification and maintenance practices visit our 

website www.idealboilers.com where you can download the relevant information in PDF format.

November 2014
UIN 210935 A01

Logic 

HEAT 

12 15 18 24 30

iNSTALLATioN

AND SERViciNg

For Users Guide see reverse of book

For details of document amendments, refer to page 3

Summary of Contents for Logic HEAT 12

Page 1: ...t have not been clearly authorised by Ideal For the very latest copy of literature for specification and maintenance practices visit our website www idealboilers com where you can download the relevan...

Page 2: ...2 Ideal Logic Heat Installation and Servicing...

Page 3: ...p reserve the right to vary specification without notice For any technical queries please ring the ideal installer helpline 01482 498704 NOTE BOILER RESTART PROCEDURE To restart boiler turn mode knob...

Page 4: ...Kingdom IE Ireland Countries of destination PMS Maximum operating pressure of water C13 C33 C53 A room sealed appliance designed for connection via ducts to a horizontal or vertical terminal which ad...

Page 5: ...ushing to BS 7593 14 Inhibitor 14 Central heating mode Heat input to be calculated For assistance see Technical Helpline on the back page Page Burner operating pressure n a Central heating flow temp m...

Page 6: ...which gives detailed information on the boiler status when operating and performance of key components to aid commissioning and fault finding Safe Handling This boiler may require 2 or more operatives...

Page 7: ...ire Any direct connection of a control device not approved by Ideal Stelrad Group could invalidate the certification and the normal appliance warranty It could also infringe the Gas Safety Regulations...

Page 8: ...d ventilation openings are specified in Table 3 Only one reduction down to 25mm is allowable per installation otherwise BS5440 1 2008 dimensions must be followed Flue Terminal Positions Min Spacing 1...

Page 9: ...A condensate drain is provided on the boiler This drain must be connected to a drainage point on site All pipework and fittings in the condensate drainage system MUST be made of plastic no other mate...

Page 10: ...th a core drill the flue can be installed from inside the building where wall thicknesses do not exceed 600mm 24 Where the space into which the boiler is going to be installed is less than the length...

Page 11: ...ential temperature of 25o C across the boiler is not exceeded 4 Adjust room and cylinder thermostats and programmer to NORMAL settings The system should be vented directly off the boiler flow pipe as...

Page 12: ...harge pipe should be positioned so that the discharge of water or steam cannot create a hazard to the occupants of the premises or cause damage to electrical components and wiring 3 Pressure Gauge A p...

Page 13: ...the inlet side of the pump the connecting pipe being not less than 15 mm 1 2 nominal size and not incorporating valves of any sort b The vessel capacity must be adequate to accept the expansion of the...

Page 14: ...range of boilers have an aluminium alloy heat exchanger Important The application of any other treatment to this product may render the guarantee of Ideal Stelrad Group Invalid Ideal Stelrad Group rec...

Page 15: ...NIFOLD TOP SEALING CAP 226 FLUE MANIFOLD REAR SEALING CAP 227 CLAMP RETAINING FLUE TURRET 228 HOSE CONDENSATE INTERNAL 229 SIPHON TRAP 231 CONDENSATE OUTLET CONNECTION 233 FLUE SENSING NIPPLE 301 CONT...

Page 16: ...order Unpack and check the contents Pack A Contents A Boiler B Hardware Pack C Wall Mounting Plate D These Installation Users Instructions E Wall Mounting Template located on internal protective pack...

Page 17: ...B Flue turret C Wall Seal white D Cutting Aid E Wall Seal black A B C E D Pack B Contents Rear Flue Outlet Kit 55 80 A Plastic Connector B Flue Terminal C Rubber terminal wall seal D 2 x Self Tapping...

Page 18: ...the correct holes are drilled 1 Tape template into the required position ensuring its squareness by hanging a plumbline as shown 2 If fitting a side flue extend the flue centreline onto the side by 15...

Page 19: ...side location dimples are in line with the mounting face allowing the correct sealing of the components It is IMPORTANT that all attachments are fitted in accordance to the installation instructions...

Page 20: ...rret to outside face of wall plus 44mm flue length SIDE Fit towall A WALL Minimum clearance 5mm 20 DETERMINING THE FLUE LENGTH and flue packs required cont d Shows the flue required when measured from...

Page 21: ...tlet terminal is upper most 4 Drill a 3 5mm hole through one of the 2 outer side holes in the outer flue section into the inserted outer flue as shown Take care not to pierce the inner plastic flue Fi...

Page 22: ...d to be refitted 9 When 1st mark is in line with the wall whilst holding the flue firmly push the white wall sealing flange to the wall until the 2nd of the two marks is just visible If the last locat...

Page 23: ...stalled it is important that the rubber terminal wall seal is pressed against the outside wall to create an adequate seal between the flue and wall as shown in Figure 2 25 Setting the Rear Flue Length...

Page 24: ...etween the plastic connector and the terminal air duct with the tape provided 6 Push the terminal assembly through the prepared hole in the wall until the rubber seal clears the outside wall Rest the...

Page 25: ...as this movement engages the rear flue air and flue seal 3 Screw the boiler bottom retaining bracket to the wall with the screw provided 4 Remove the top flue blanking disk refer to Frame 26 Fill the...

Page 26: ...ng either Flat roof weather collar or Universal weather collar Accessories Flue Duct Extension Kits are available for flue lengths extending beyond 1m These packs contain 500mm 1000mm and 2000mm exten...

Page 27: ...al positions where this could cause a nuisance should be avoided Minimum dimensions are shown below rf8392 Terminal Position Minimum Dimension Directly below an opening air brick windows etc 300 mm Be...

Page 28: ...with the instructions provided with the vertical connector kit 3 Secure the vertical connector by applying downward pressure on the connector 4 Position the clamp on the top face of the flue manifold...

Page 29: ...xternal 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 m...

Page 30: ...nimum connection height up to 3 storeys Soil vent stack 450 Boiler with 75mm sealed condensate trap Min 19mm Internal pipe Min 30mm Internal pipe Water weather proof insulation 75 Boilers without 75mm...

Page 31: ...tion For additional gas supply information refer to Gas Supply on page 8 35 electrical connections Wiring should be 3 core PVC insulated cable not less than 0 75mm2 24 x 0 2mm and to BS 6500 Table 16...

Page 32: ...ox down into the servicing position 5 Route incoming cable through a grommet in the bottom panel note that the grommets are blind and will require puncturing and secure using the clamp and screws prov...

Page 33: ...output is provided and maybe if pump overrun is required be used for the system pump Care must be taken to ensure that the earth conductor is longer than the current carrying conductors 3G9503b L N CH...

Page 34: ...1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 Fan Return Thermistor Control Thermistor Flame Sensor Electrode Spark Electrode Spark Generator PCB Gas Valve Chassis Earth Service Connector Fused at 4AT Mains Swi...

Page 35: ...ce has been checked adjusted and preset at the factory for operation on the gas type defined on the appliance data plate Do not adjust the air gas ratio valve Having checked That the boiler has been i...

Page 36: ...t panel Refer to Frame 45 3 Check that the electrical supply is OFF 4 Check that the boiler mode knob B is off 5 Check that the gas service cock G is OPEN 6 Slacken the screw in the inlet pressure tes...

Page 37: ...rature Knob B Mode Knob C Boiler Status D Burner on Indicator E Central Heating Economy Setting 43 HANDING OVER 6 Explain and demonstrate the function of time and temperature controls radiator valves...

Page 38: ...are covered more fully in Frames 46 49 and must be carried out in sequence Important 6 After completing the servicing or exchange of components always test for gas tightness 7 When work is complete t...

Page 39: ...then ease down to remove 3 Remove the extended nut on the fan mounting bracket 4 Lift off fan and venturi assembly 5 Undo the two M4 screws and release the nozzle assembly 6 Inspect the injector for...

Page 40: ...burner as shown Important The burner head is a ceramic plaque construction Care must be taken to ensure that the burner is not placed down upon its face as this may cause damage to the ceramic 6 Brus...

Page 41: ...ection gaps are correct Refer to Frames 56 57 1 Ignition Electrode Flame Detection Reassemble the boiler in the following order 1 Ensure that the condensate trap siphon is full of water 2 Refit the bu...

Page 42: ...R MUST NOT BE OPERATED without THE FRONT PANEL FITTED 4 52 fan replacement 1 Refer to Frame 51 2 Disconnect the electrical leads from the fan 3 Remove the clip from the gas control valve outlet 4 Remo...

Page 43: ...der ensuring that the new gas seal supplied is located correctly in the injector housing 10 Check operation of the boiler Refer to Frames 40 41 54 burner REPLACEMENT 5 5 6 1 See Frame 47 2 Refer to Fr...

Page 44: ...der 9 Check the operation of the boiler Refer to Frames 40 41 55 control return thermistor rePLACEMENT 1 Refer to Frame 51 2 Disconnect the electrical leads from the thermistors 3 Unclip the flow ther...

Page 45: ...nerator and re assemble in reverse order ensuring that the the earth lead is replaced 6 Check operation of the boiler Refer to Frames 40 41 Flame Detection Electrode 12 5mm Straight edge 1 Refer to Fr...

Page 46: ...ards 7 Fit the new gas control valve ensuring that the O ring and sealing washer are in place and reconnect gas and electrical connections 8 Check operation of the boiler Refer to Frames 40 41 1 Refer...

Page 47: ...new Primary PCB and attach the appropriate Boiler Chip Card BCC to it this should correspond to the output of the boiler 12kW 15kW 18kW 24kW or 30kW Note Ensure the correct orientation of BCC by placi...

Page 48: ...verse order 6 Check operation of the boiler Refer to Frames 40 41 62 User control PCB replacement 3 Potentiometer spindle Control Knobs to be in vertical position PCB 4 63 Water Flow switch head Repla...

Page 49: ...bly upwards to disengage from the heat exchanger return pipe elbow 11 Remove the screw retaining the flow pipe bracket and remove the bracket from its rear retention slot 12 Pull the flow pipe to the...

Page 50: ...seal from the casing and thoroughly clean the casing surfaces 3 Fit the new seal ensuring the bottom joint provides an air tight seal 5 Reassemble in reverse order 6 Check operation of the boiler Refe...

Page 51: ...51 SERVICING Ideal Logic Heat Installation and Servicing...

Page 52: ...N THERMISTOR FAULT GO TO FRAME 74 OUTSIDE SENSOR FAULT LOW MAINS VOLTAGE CONTACT ELECTRICITY PROVIDER PCB FAULT REPLACE PCB BCC NOT FITTED RESTART BOILER No CH NO dhw GO TO FRAME 78 GO TO FRAME 79 If...

Page 53: ...efer to Frame 56 Are these functioning correctly NO Check siphon and condensate drain pipe work for blockage and rectify if necessary Boiler now working OK Check wiring connection from gas valve to PC...

Page 54: ...g will vary depending on the type of meter used to measure the value In general terms a reading greater than 150V indicates that the correct voltage is supplied to the gas valve 71 aLTERNATING F AND 3...

Page 55: ...ct way yes no Reverse pump Check that the system pipework is correct 76 aLTERNATING F AND d No Water Flow Are the boiler and CH system filled with water and all isolation and radiator valves open yes...

Page 56: ...osition yes no Move the mode knob to the ON position Are the Timer and the Cylinder Thermostat switched on yes no Switch the Timer and Cylinder Thermostat On Is there 230Vac at A yes NO There is no Vo...

Page 57: ...ed by Ideal 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 www idealpart...

Page 58: ...58 SPARE parts Ideal Logic Heat Installation and Servicing...

Page 59: ...he data fields on the commissioning checklist completed in full To instigate the boiler guarantee the boiler needs to be registered with the manufacturer within one month of the installation To mainta...

Page 60: ...priate Building Regulations and then handed to the customer to keep for future reference GAS BOILER SYSTEM COMMISSIONING CHECKLIST CONTROLS Programmable room thermostat Optimum start control Combinati...

Page 61: ...larly and that the appropriate Service Interval Record is completed Service Provider SERVICE RECORD SERVICE 01 AND Where Possible AND Signature SERVICE 02 AND Where Possible AND Signature SERVICE 03 A...

Page 62: ...followed e g Gas Safe Register Technical Bulletin TB 008 where chimney flues are in voids The ECGA should be of the correct type as specified by BS 7967 Prior to its use the ECGA should have been main...

Page 63: ...are assembled fixed 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 Rect...

Page 64: ...64 Notes Ideal Logic Heat Installation and Servicing...

Page 65: ...65 Notes Ideal Logic Heat Installation and Servicing...

Page 66: ...The Ideal Technical Training Centre offers a series of first class training courses for domestic commercial and industrial heating installers engineers and system specifiers For details of courses pl...

Page 67: ...have not been clearly authorised by Ideal For the very latest copy of literature for specification and maintenance practices visit our website www idealboilers com where you can download the relevant...

Page 68: ...ent Building Regulations and reference should be made to the current ETCI rules for electrical installation It is essential that the instructions in this booklet are strictly followed for safe and eco...

Page 69: ...is reduced as the heat demand is reduced The boiler condenses water from the flue gases when operating most efficiently To operate your boiler efficiently using less gas turn the central heating temp...

Page 70: ...applications may have to be made before it fully defrosts Warm water can also be poured onto the pipe from a watering can or similar DO NOT use boiling water 3 Caution when using warm water as this m...

Page 71: ...require and adjust if necessary Check the Programmer external to the boiler is in an ON position and the room thermostat is turned up NO See boiler Operation Modes and Fault Codes section If 0 is disp...

Page 72: ...de of the warranty period In IE contact a Registered Gas Installer RGII Flame Loss See Action Fault Code L 2 Fan Fault Restart the appliance if the boiler fails to operate then please contact Ideal if...

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