Ideal Heating LOGIC+ SYSTEM S18 Installation & Servicing Download

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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 Hunt Heating.

December 2020
UIN 225326 A03

INSTALLATION

& SERVICING

LOGIC+ SYSTEM

S18 S30

H E A T I N G

Summary of Contents for LOGIC+ SYSTEM S18

Page 1: ...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 Hunt Heating December 2020 UIN 2...

Page 2: ...2 Installation and Servicing...

Page 3: ...ING THE HUNT HEATING INSTALLER HELPLINE 1300 00 1800 NOTE BOILER RESTART PROCEDURE To restart the boiler press the RESTART button The boiler will repeat the ignition sequence if a heat demand is prese...

Page 4: ...Testing 32 2 25 Initial Lighting 33 2 26 General Checks 34 2 27 Restart Procedure 34 2 28 Accessing The Installer Mode 35 2 29 Handing Over 35 3 SERVICING 36 3 1 Servicing Schedule 36 3 2 Boiler Front...

Page 5: ...t Q Net CV kW Gross CV kW 4 9 18 1 6 1 30 4 5 4 20 1 6 7 33 7 Boiler output non condensing Mean 70 C kW 4 8 18 0 6 1 30 3 Boiler output condensing Mean 40 C kW 5 1 19 1 6 4 31 0 Gas Consumption MJ h 1...

Page 6: ...Helpline on the back Page 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 14...

Page 7: ...ation pipework Pipework from the boiler is routed downwards Data Plate The boiler model and serial number can be located on the bottom of the boiler casing shown in Sections 1 16 1 17 Water Gas Connec...

Page 8: ...iler must be installed on a flat and vertical wall capable of adequately supporting the weight of the boiler and any ancillary equipment The boiler bracket supplied with the unit must be used as stand...

Page 9: ...ty meter or fuse box P see Note 3 500 500 f From a drain pipe or soil pipe 150 75 g Horizontally from any building structure or obstruction facing a terminal 500 500 h From any other flue terminal cow...

Page 10: ...e a flow of water should all valves be in the closed position 1 14 ELECTRICAL SUPPLY WARNING Electrical safety of the appliance is reached only when it is correctly connected to an efficient earthing...

Page 11: ...Refer to Section 2 19 The following minimum clearances must be maintained for operation and servicing Additional space will be required for installation depending upon site conditions Front clearance...

Page 12: ...Gas Connection W A L L EXTERNAL ENCLOSURE 1 17 BOILER DIMENSIONS SERVICES CLEARANCES EXTERNAL all dimensions in mm The boiler connections are made on the boiler connection tails Refer to Section 2 19...

Page 13: ...llation of an Autofill valve and required backflow prevention the system may be filled by the following method i Thoroughly flush out the whole system with cold water ii Fill and vent the system until...

Page 14: ...n the remaining radiators to give around 20o C temperature drop at each radiator 3 Adjust the room thermostat and programmer to NORMAL settings 1 19 SYSTEM BALANCING CENTRAL HEATING The Logic System r...

Page 15: ...223 FLUE MANIFOLD 224 FLUE MANIFOLD TOP 227 CLAMP RETAINING FLUE TURRET 228 HOSE CONDENSATE INTERNAL 229 SIPHON TRAP 231 CONDENSATE OUTLET CONNECTION 302 PCB 304 CONTROL THERMISTOR RETURN 306 ELECTROD...

Page 16: ...SEMBLY Exploded View 239 Flue Turret 240 Flue Terminal 241 Flue Terminal Seal 242 External Flue Terminal Aperture Seal 501 Internal Boiler Accessory Pack 501 External Boiler Accessory Pack 520 Wall Mo...

Page 17: ...ry Pack C Compression Coupler D Wall Mounting Plate E Installation User Instructions F Wall Mounting Template located on internal protective packaging A B C D E Unpack and check the contents Pack Cont...

Page 18: ...ing its squareness by hanging a plumbline as shown 2 If fitting a side flue extend the flue centreline onto the side by 155mm on a standard wall fix 3 Mark the following on to the wall a The selected...

Page 19: ...rovided for the wall mounting plate 3 Locate 2 No 14 x 50mm screws in the wall mounting plate one at each side in any of the 3 holes provided at each side and screw home Ensure mounting bracket is lev...

Page 20: ...required for the masonry plugs used 3 Insert all 6 masonry plugs ensuring a flush fit to the wall and insert the top two mounting screws leaving screws approximately 10mm proud 4 Carefully lift the m...

Page 21: ...turret Refer to Section 2 14 2 Ensure the plastic plugs are rmoved from both the CH and DHW connections before mounting the boiler Note Boiler may contain residual water 3 Lift the boiler onto the wal...

Page 22: ...xternal black flue seal ensuring the inside of the outer lip is in contact with the terminal lip 4 Apply water to the flue turret seals and place the flue through the orifice ensuring full insertion a...

Page 23: ...water as a lubricant during assembly The B pack terminal is classed as part of the maximum flue length It is IMPORTANT that all attachments are fitted in accordance to the installation instructions pr...

Page 24: ...DETERMINING THE FLUE LENGTH AND FLUE PACKS REQUIRED CONT D FIGURE 1 Note Maximum permissible flue length is measured from centre line of appliance flue outlet to outside wall face 2 14 CUTTING SETTING...

Page 25: ...4 Ensure the seam and the outlet terminal are at the top and fitted as shown FITTING THE TURRET Ensure the condense trap siphon is filled with water 1 Ensure the rubber seal is fitted correctly on th...

Page 26: ...ector 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 and push it horizontally backwards Locate both clamp...

Page 27: ...lled access to a suitable discharge point should be one of the main factors considered in determining boiler location b Plastic with push fit or solvent connections c Internal plastic pipe work a mini...

Page 28: ...TION IMPORTANT The gas service cock is sealed with a non metallic fibre washer which must not be overheated when making capillary connections Refer to Section 1 16 for details of the position of the g...

Page 29: ...le and plug This must be connected to a permanent live supply and NOT switched by thermostats programmers If the supply cord is damaged it must be replaced by the manufacturer service agent or similar...

Page 30: ...the cable from strain relief 5 Unscrew the L N E connections remove wires from connector 6 Remove the mains cable by pulling back through the grommet 7 Route the replacement cable through the grommet...

Page 31: ...IVE IGNITION LIVE PE X2 PUMP LIVE DHW LIVE X3 PUMP GND X9 X8 OWC OWC OPENTHERM OPENTHERM OPENTHERM 5V CHIP COM BUS TX CHIP COM BUS 24V CHIP COM BUS GND CHIP COM BUS 5V CHIP COM BUS RX MAINS LIVE MAINS...

Page 32: ...nd 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 installed in accordance with th...

Page 33: ...is closed and that the CH isolating valve are OPEN 4 Check that the electrical supply is OFF 5 Check that the boiler mode control knob B is OFF 6 Check that the gas service cock is OPEN 7 Slacken the...

Page 34: ...he system HOT examine all water connections for soundness The system pressure will increase with temperature rise but should not exceed 250kPa 3 With the system still hot turn off the gas water and el...

Page 35: ...Boiler restart procedure 10 After installation and commissioning please complete the Commissioning Checklist before handover to the customer IMPORTANT 11 A comprehensive service should be carried out...

Page 36: ...on circuit the following must be checked The integrity of the flue system and the flue seals The integrity of the boiler combustion circuit and the relevant seals The operational working gas inlet pre...

Page 37: ...2 bottom spring clips engage ensuring the 4 control knobs 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 3 1 2 5 3...

Page 38: ...he gas control valve outlet and ease the pipe upwards rotate and 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 sc...

Page 39: ...he 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 Brush off any deposits that may...

Page 40: ...ction gaps are correct Refer to Sections 3 14 3 15 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 t...

Page 41: ...ler Refer to Section 3 19 THE BOILER MUST NOT BE OPERATED WITHOUT THE FRONT PANEL FITTED 3 10 FAN REPLACEMENT 1 Refer to Section 3 8 2 Disconnect the electrical leads from the fan 3 Remove the clip fr...

Page 42: ...r ensuring that the new gas seal supplied is located correctly in the injector housing 10 Check operation of the boiler Refer to Sections 2 25 2 26 3 12 BURNER REPLACEMENT 5 5 6 1 See Section 3 9 2 Re...

Page 43: ...ns as shown 8 Reassemble in reverse order 9 Check the operation of the boiler Refer to Sections 2 25 2 26 3 14 IGNITOR ELECTRODE REPLACEMENT 1 Refer to Section 3 9 2 Unclip the return thermistor from...

Page 44: ...der ensuring that the the earth lead is replaced 6 Check operation of the boiler Refer to Sections 2 25 2 26 Flame Detection Electrode 12 5mm Straight edge 1 Refer to Section 3 9 2 Remove the burner R...

Page 45: ...ealing washer are in place and reconnect gas and electrical connections 7 Ensure all gas valve connections are gas tight with a gas soundness check up to the gas control valve 8 Check operation of the...

Page 46: ...plug all lead connections to the PCB 5 Remove the 2 screws if applicable 6 Spring out the four side retaining clips and pull the PCB upwards to clear the corner retaining posts 7 Take the new PCB 8 Re...

Page 47: ...and secure with the C clip 7 Refill the boiler 8 Check the operation of the boiler Refer to Sections 2 25 2 26 3 21 PRESSURE GAUGE REPLACEMENT 5 4 3 22 SAFETY RELIEF VALVE REPLACEMENT 1 Refer to Sect...

Page 48: ...s the reverse of the above Ensure the air vent head o ring seal is in place when refitting and the new o ring is fitted to the return pipe top connection 7 Ensure the air vent cap is loose 8 Refill th...

Page 49: ...in reverse order 7 Refill the boiler 8 Check operation of the boiler Refer to Sections 2 25 2 26 1 Refer to Section 3 9 2 Drain down the boiler Refer to Section 3 20 3 Unplug the electrical lead 4 Un...

Page 50: ...to correctly match connecting pipe diameters 18 Ensure the trap siphon is filled with water Refer to Secion 3 19 19 Refill the boiler Refer to Section 2 19 20 Ensure all gas valve connections are gas...

Page 51: ...circuit Refer to Section 3 20 7 Remove the retaining clip on the vessel water connection pipe 8 Support the expansion vessel and unscrew the 2 screws from the securing clamp located on the top of the...

Page 52: ...tion 4 4 FALSE FLAME LOCKOUT GO TO Section 4 5 LOW WATER PRESSURE GO TO Section 4 6 FLAME LOSS GO TO Section 4 7 FAN FAULT GO TO Section 4 8 CONTROL NO FLOW THERMISTOR FAULT GO TO Section 4 9 RETURN T...

Page 53: ...to Section 3 15 Check if the condensate pipe is blocked Check flue is installed correctly Replace as necessary NO Check gas supply and rectify fault NO YES Is 24Vdc supply available at the Gas Valve...

Page 54: ...locked Check if flue is blocked Replace 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 associa...

Page 55: ...hms Is the Thermistor value correct YES YES NO NO Replace PCB Replace PCB Fit a new Thermistor Fit a new Thermistor Is there continuity between the PCB and Thermistor Is there continuity between the P...

Page 56: ...he Timer Room Stat This is not boiler fault Ensure Voltage is supplied to boiler by rectifying external wiring 4 12 NO DISPLAY Is there 230Vac to the boiler at L and N see Section 4 11 NO Supply power...

Page 57: ...s parts information and details of approved parts distributors are available from Hunt Heating Our Parts team are also available to help with your spare parts enquiries on 1300 00 1800 When calling an...

Page 58: ...Not required What type of scale reducer softener has been fitted Brand Product Water meter fitted Yes No If yes DHW expansion vessel pre existing Fitted Not required Pressure reducing valve pre existi...

Page 59: ...en 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...

Page 60: ...en 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...

Page 61: ...61 Installation and Servicing...

Page 62: ...ed and all guidance has been followed Prior to its use the ECGA should have been maintained and calibrated as specified by the manufacturer The installer must have the relevant competence for use of t...

Page 63: ...xed 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...

Page 64: ...veways Boulevarde Keysborough Victoria 3195 Tel 1300 00 1800 or 61 0 3 9798 5111 Fax 61 0 3 9798 5133 Email enquiries huntheat com au Website www huntheat com au Hunt Heating Technical Helpline 1300 0...

Page 65: ...s 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 Hunt Heating December 2020...

Page 66: ...ctly fitted and forming an adequate seal If the boiler is installed in a compartment then the compartment MUST NOT be used for storage purposes If it is known or suspected that a fault exists on the b...

Page 67: ...iently To operate your boiler efficiently using less gas turn the central heating temperature knob A to the position or lower In winter periods it may be necessary to turn the knob towards the MAX pos...

Page 68: ...eer Preventative solutions During cold weather set the central heating temperature knob A to maximum Must return to original setting once cold spell is over Place the heating on continuous and turn th...

Page 69: ...rammer are as you require and adjust if necessary Check the programmer external to the boiler is in an ON position and the hot water cylinder thermostat is turned up NO See boiler Operation Modes and...

Page 70: ...central heating but the appliance has reached the desired temperature set on the boiler The boiler is operating in central heating hot water mode The boiler is operating in frost protection 7 NORMAL...

Page 71: ...the meter and or pre payment meter has credit If the boiler fails to operate then please contact Hunt Heating if under warranty or alternatively a Licensed Registered Engineer if outside of the warra...

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