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INSTALLATION AND
SERVICING
LOGIC COMBI ESP1
24 30 35
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.
February 2018
UIN 215120 A05
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Table of Contents
Related Manuals for IDEAL LOGIC COMBI ESP1 24
Summary of Contents for IDEAL LOGIC COMBI ESP1 24
- Page 1 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.
- Page 2 ERP DATA MODEL SYMBOL UNITS Condensing Boiler Low Temperature Boiler B1 Boiler Cogeneration Space Heater Equipped with a Supplementary Heater Combination Heater Nominal Heat Output for Space Heating Full Load 24.3 24.3 24.3 Part Load Auxiliary Electricity Consumption Full Load 0.042 0.032 0.029...
- Page 3 PRODUCT FICHE LOGIC ESP1 COMBINATION BOILER Ideal Boilers ERP DATA SYMBOL UNITS MODEL Condensing boiler Seasonal Space heating efficiency class Rated heat output ƞ Seasonal space heating energy efficiency Annual energy consumption Sound power level, indoors Water heating energy efficiency class...
- Page 4 Installation and Servicing...
- Page 5 DOCUMENT AMENDMENTS Relevant Installation changes implemented in this book from Mod Level ..A04 (Sep 17) to A05 (Feb 18) Queens Award removed from outer covers Ideal Boilers reserve the right to vary specification without notice Installation and Servicing...
- Page 6 Installation and Servicing...
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Page 7: Table Of Contents
CONTENTS GENERAL ..............10 SERVICING ............... 39 Introduction ..............10 Servicing Schedule ............ 39 Operation ..............10 Boiler Front Panel Removal / Replacement ....40 Safe Handling ............. 10 Fan And Venturi Assembly Removal And Cleaning ..40 Optional Extra Kits ............. 11 Burner Removal &... -
Page 8: General
SECTION 1 - GENERAL Table 1 - General Data Gas supply 2H - G20 - 20mbar Gas Supply Connection 15mm copper compression Injector Size 4.15 4.65 Inlet Connection Domestic Hot Water 15mm copper compression Outlet Connection Domestic Hot Water 15mm copper compression Flow Connection Central Heating 22mm copper compression... - Page 9 SECTION 1 - GENERAL LOGIC COMBI ESP1 Natural Gas only Boiler size G.C. Appliance No. PI No. (Benchmark No.) 47-349-21 86CR16 47-349-22 86CR16 47-349-23 86CR16 Destination Country: GB, IE For GB, to comply with Building Regulations Part L1 (Part 6 in Scotland) the boiler should be fitted in accordance with the manufacturer’s instructions.
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Page 10: Introduction
SECTION 1 - GENERAL 1.1 INTRODUCTION 1.2 OPERATION The Logic Combi ESP1 range of boilers are wall mounted, full With no demand for CH, the boiler fires only when DHW is sequence, automatic spark ignition, low water content, fanned drawn off, When there is a demand for CH, the heating system flue, high efficiency, condensing, combination gas boilers. -
Page 11: Optional Extra Kits
Installation and Servicing Instructions or as otherwise conform to the following: recommended by Ideal Boilers in writing. If in doubt please • BS.6798 (No cupboard ventilation is required - see ‘Air Supply’... -
Page 12: Gas Supply
SECTION 1 - GENERAL 1.8 GAS SUPPLY 2. It is important that the position of the terminal allows the free passage of air across it at all times. The local gas supplier should be consulted, at the installation 3. Minimum acceptable spacing from the terminal to obstructions planning stage, in order to establish the availability of an adequate and ventilation openings are specified in supply of gas. -
Page 13: Terminal
SECTION 1 - GENERAL 1.10 TERMINAL The terminal assembly can be adapted to accommodate various wall thicknesses. Refer to Section 2.9. 1.11 AIR SUPPLY It is NOT necessary to have a purpose-provided air vent in the room or internal space in which the boiler is installed. Neither is it necessary to ventilate a cupboard or compartment in which the boiler is installed, due to the low surface temperatures of the boiler casing during operation;... -
Page 14: Boiler Dimensions, Services & Clearances
SECTION 1 - GENERAL 1.16 BOILER DIMENSIONS, SERVICES & CLEARANCES The boiler connections are made on the boiler connection tails. drill, the flue can be installed from inside the building where Refer to Section 2.16. wall thicknesses do not exceed 600mm. Where the space into which the boiler is going to be installed is less than the length The following minimum clearances must be maintained for of flue required the flue must be fitted from the outside. - Page 15 SECTION 1 - GENERAL 1.17 SYSTEM REQUIREMENTS - Central Heating Safety valve setting Notes Vessel charge pressure 0.5 to 0.75 a. The method of filling, refilling, topping up or flushing sealed primary hot water circuits from the mains via a temporary hose System pre-charge pressure bar None connection is only allowed if acceptable to the local water...
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Page 16: System Requirements
IMPORTANT. softened water, however, is not permitted. The application of any other treatment to this product Ideal Boilers recommend the use of Fernox Quantomat, Sentinel may render the guarantee of Ideal Boilers Invalid. Combiguard,Calmag CalPhos I scale reducing devices or... -
Page 17: Installation
SECTION 2 - INSTALLATION 2.1 BOILER ASSEMBLY - Exploded View Note that item numbers are linked to the spares list CH Return Valve Return Group Manifold Burner Thermistor Flow CH Flow Valve Flow Group Manifold Gasket - Burner Ignition Lead DHW Inlet &... -
Page 18: Unpacking
SECTION 2 - INSTALLATION 2.2 UNPACKING The boiler is supplied fully assembled in Pack A. A telescopic or non-telescopic flue assembly for rear or side flue outlet in Pack B is supplied as a separate order. Unpack and check the contents. Pack A Contents Boiler Hardware Pack Box... -
Page 19: Unpacking Cont'd
SECTION 2 - INSTALLATION 2.3 UNPACKING CONT’D Note. This flue system incorporates a removable flue outlet nose that utilises a push fit location system. This enables the installation of deflector, high level or balcony outlet flue kits without the removal of the whole ‘B’ pack terminal. The appliance must not be operated without the desired outlet nose correctly fitted in place. -
Page 20: Wall Mounting Template
SECTION 2 - INSTALLATION 2.5 WALL MOUNTING TEMPLATE Extended centre line 1 5 5 (2 0 0 ) The wall mounting template is located on the internal protective “A” - See Diagram in Section 1.16 packaging. The template shows the position of the fixing and rear flue centre holes for a standard installation Care MUST be taken to ensure the correct holes are drilled. -
Page 21: Determining The Flue Length & Flue Packs Req'd
(1000mm long) B Pack cut 75mm * If wall thickness is <126 and >102.5, contact Ideal Boilers. For Flue lengths between 658 & 708 use a Horizontal Flue Terminal (1000mm long) B Pack, cut 75mm off the end of the terminal section of the telescopic flue only. - Page 22 SECTION 2 - INSTALLATION ..DETERMINING THE FLUE LENGTH AND FLUE PACKS REQUIRED, CONT’D FIGURE 1 Edge of turret Edge of turret Edge of turret to outside face of wall plus to outside face of wall plus to outside face of wall plus 44mm = ue length 44mm = ue length 44mm = ue length...
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Page 23: Cutting & Setting The Flue Length
SECTION 2 - INSTALLATION 2.10 CUTTING & SETTING THE FLUE LENGTH TELESCOPIC FLUES TELESCOPIC FLUE B PACK SHOULD ONLY BE ADJUSTED FOR USE WITHIN ITS SPECIFIED RANGE AND MUST NOT BE CUT HORIZONTAL FLUE TERMINAL (1000MM LONG) B PACK (TELESCOPIC) MUST ONLY BE CUT IF REQUIRED FLUE LENGTHS ARE BETWEEN 602 &... -
Page 24: Installing The Flue
SECTION 2 - INSTALLATION 2.11 INSTALLING THE FLUE FITTING FLUE THROUGH THE WALL 1. Measure wall thickness and add 14mm. 2. Measure from the outer terminal lip towards the end of outer flue, place a small location mark at the dimension acquired at point 1. 3. -
Page 25: Fitting The Optional Roof Flue Kit
SECTION 2 - INSTALLATION 2.12 FITTING THE OPTIONAL ROOF FLUE KIT (FLAT OR PITCHED) Note. A flat or pitched roof flashing plate (not supplied) is required before proceeding with the installation of this kit. This kit is suitable for both flat and pitched roof terminations, using a concentric flue to run vertically from the top of the boiler and terminating above roof level. -
Page 26: Flue Terminal Position
SECTION 2 - INSTALLATION 2.13 FLUE TERMINAL POSITION The terminal should be positioned so that products of combustion can safely disperse at all times. Pluming may occur at the termination so, where possible, terminal positions where this could cause a nuisance should be avoided. -
Page 27: Assembling The Roof Flue Kit
SECTION 2 - INSTALLATION 2.14 ASSEMBLING THE ROOF FLUE KIT Determine the correct height that the flue should terminate above the roof. If after calculating or measuring the overall flue height from the top of the boiler, it is necessary to cut both pipes of assembly A, then ensure they are cut equally leaving the inner flue tube longer than the outer air tube as supplied. -
Page 28: Condensate Drain
SECTION 2 - INSTALLATION 2.15 CONDENSATE DRAIN Condensate Pump Where gravity discharge to an internal termination is not physically possible or where very long internal pipe runs would be required to reach a suitable discharge point, a condensate pump of a specification recommended by the boiler or pump manufacturer Condensate should be used terminating into a suitable internal foul water... - Page 29 SECTION 2 - INSTALLATION ..CONDENSATE DRAIN - CONT’D Figure 3 - Connection of a Condensate Pump Typical Figure 4 - Connection of condensate Drainage Pipe to Method (see manufacturer’s detailed instructions) External Soil & Vent Stack Boiler Water/weather Visible air break with 75mm proof insulation Boiler...
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Page 30: Connections & Filling
SECTION 2 - INSTALLATION 2.16 CONNECTIONS & FILLING NOTES. Note. The domestic hot water flow rate is Ensure all boss blanking plugs are removed before connecting hardware. Each automatically regulated to a maximum: valve must be fitted to the correct boss as shown in the picture. 24 = 9.9 (2.2 gpm) Ensure each union is fitted with fibre seals provided. - Page 31 SECTION 2 - INSTALLATION ..CONNECTIONS & FILLING CONT FILLING IMPORTANT - when filling: When filling there may be a slight water leak from the air vent therefore electrical connections should be protected. Filling Top Up Ensure filling loop is connected and all washers in place. Ensure filling loop is connected and all washers in place.
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Page 32: Electrical Connections
SECTION 2 - INSTALLATION 2.17 ELECTRICAL CONNECTIONS Wiring should be 3 core PVC insulated cable, not less than WARNING. This appliance MUST be earthed. 0.75mm (24 x 0.2mm), and to BS 6500 Table 16. For IE reference should be made to the current ETCI rules for A mains supply of 230Vac ~ 50 Hz is required. -
Page 33: External Wiring
SECTION 2 - INSTALLATION 2.19 EXTERNAL WIRING External Controls – 230V 50Hz External Controls – Extra Low Voltage Frost Protection If parts of the pipework run outside the Wiring a 230V 50Hz Room Thermostat, Wiring OpenTherm Room Control house or if the boiler will be left off for more Diagram A (with optional timer, Diagram or other OpenTherm Master Device, DIAGRAM A:... -
Page 34: Wiring Diagram
SECTION 2 - INSTALLATION 2.21 WIRING DIAGRAM Installation and Servicing... -
Page 35: Commissioning And Testing
SECTION 2 - INSTALLATION 2.22 COMMISSIONING AND TESTING A. Electrical Installation B. Gas Installation 1. Checks to ensure electrical safety should be carried out by 1. The whole of the gas installation, including the meter, a competent person. should be inspected and tested for tightness and purged in accordance with the recommendations of BS.6891. -
Page 36: Initial Lighting
SECTION 2 - INSTALLATION 2.23 INITIAL LIGHTING Legend BOILER A. Domestic Hot Water Temperature Knob ºC B. Central Heating Temperature Knob C. Mode Knob D. Boiler Status Display MODE E. Burner ‘on’ Indicator RESTART Central Heating Economy Setting G. CH Flow Isolating Valve H. -
Page 37: General Checks
SECTION 2 - INSTALLATION 2.24 GENERAL CHECKS Make the following checks for correct operation in: WATER CIRCULATION SYSTEM 1. With the system COLD, check that the initial pressure is 1. Fully open all DHW taps in turn and ensure that water flows correct to the system design requirements. -
Page 38: Restart Procedure
SECTION 2 - INSTALLATION 2.25 RESTART PROCEDURE To restart the boiler, press the RESTART button (F). Legend A. Domestic Hot Water Temperature Knob BOILER B. Central Heating Temperature Knob ºC C. Mode Knob D. Boiler status Display E. Burner ‘on’ Indicator F. -
Page 39: Servicing
SECTION 3 - SERVICING 3.1 SERVICING SCHEDULE For the very latest copy of literature for specification & maintenance practices, visit our website www.idealboilers.com, where you will be able to download the relevant information. WARNING. Always turn OFF the gas supply at the gas service cock, and switch OFF and disconnect the electricity supply to the appliance before servicing. -
Page 40: Boiler Front Panel Removal / Replacement
SECTION 3 - SERVICING 3.2 BOILER FRONT PANEL REMOVAL / REPLACEMENT REMOVAL REPLACEMENT 1. Loosen the two screws retaining the front panel. 3. Hook the panel onto the top retaining clips. 2. Pull the two clips down to disengage and pull panel forward 4. -
Page 41: Burner Removal & Cleaning
SECTION 3 - SERVICING 3.4 BURNER REMOVAL AND CLEANING 1. Ensure the sump is fully drained 2. Undo the two screws and remove the sump cover retaining the lower flue manifold. 3. Lift the manifold to clear the bottom sealing gasket and remove manifold. -
Page 42: Cleaning The Heat Exchanger
SECTION 3 - SERVICING 3.6 CLEANING THE HEAT EXCHANGER Note: Ensure the condensate trap/siphon is fully drained before cleaning. Refer to Ignition Electrode Flame Detection Section 3.18. 1. Remove ignition and flame detection electrodes. Refer to Section 3.13 & 3.14. 2. -
Page 43: Replacement Of Components
SECTION 3 - SERVICING 3.8 REPLACEMENT OF COMPONENTS GENERAL IMPORTANT. When work is complete, the front panel must be correctly When replacing ANY component refitted - ensuring that a good seal is made. 1. Isolate the electricity supply. Notes. 1. In order to assist fault finding, the control panel has 2. -
Page 44: Burner Injector Replacement
SECTION 3 - SERVICING 3.10 BURNER INJECTOR REPLACEMENT 1. Refer to Section 3.8. 2. Disconnect the electrical leads from the fan. 3. Remove the clip from the gas valve to venturi pipe and ease the pipe upwards, rotate and ease down to remove. 4. -
Page 45: Return Thermistor Renewal
SECTION 3 - SERVICING 3.12 RETURN THERMISTOR REPLACEMENT 1. Refer to Section 3.8. 2. Unclip the return thermistor from the return pipe and withdraw it from the boiler. 3. Disconnect the electrical lead from the thermistor. 4. Reconnect the electrical lead to the new thermistor and reassemble in reverse order, ensuring that the thermistor is securely fitted to the pipe on the thermistor locator tab as shown. -
Page 46: Flame Detection Electrode Replacement
SECTION 3 - SERVICING 3.14 FLAME DETECTION ELECTRODE REPLACEMENT 1. Refer to Section 3.8. Flame Detection Electrode 2. Remove the burner. Refer to Section 3.4. 3. Unplug the flame detection lead from the electrode. 4. Remove the 2 screws retaining the detection electrode. -
Page 47: Diverter Valve Actuator Replacement
SECTION 3 - SERVICING 3.17 DIVERTER VALVE ACTUATOR REPLACEMENT Refer to Section 3.8. To remove the motor: 1. Remove the condensate trap/siphon. Refer to Section 3.5. 2. Place a flat bladed screwdriver in the actuator slot provided and ease out the actuator. 3. -
Page 48: Pcb Replacement
SECTION 3 - SERVICING 3.19 PCB REPLACEMENT Note. Fit the earth strap provided with the PCB to your wrist and secure to a suitable earth on the boiler chassis. 1. Refer to Section 3.8. 2. Ensure the control knobs are in the 12 o clock position. 3. -
Page 49: Draining The Boiler
SECTION 3 - SERVICING 3.21 DRAINING THE BOILER Filling Loop CENTRAL HEATING CIRCUIT 1. Refer to Section 3.8. 2. Close all the CH water isolating valves on the boiler inlet. 3. To drain the primary heat exchanger circuit: Open the drain valve and attach a length of hose to the CH drain point. -
Page 50: Safety Relief Valve Renewal
SECTION 3 - SERVICING 3.23 SAFETY RELIEF VALVE REPLACEMENT 1. Refer to Section 3.8. 2. Drain the boiler. Refer to Section 3.21. 3. Remove the clip on return thermistor. Refer to Section 3.12. 4. Pull out and remove the clip (positioned behind the safety valve) retaining the safety valve. -
Page 51: Diverter Valve Body Assembly Replacement
SECTION 3 - SERVICING 3.26 DIVERTER VALVE BODY ASSEMBLY REPLACEMENT To remove the valve body assembly: 16. Twist and remove the DHW manifold. 1. Refer to Section 3.8. 17. Remove the two diverter valve body fixing screws and withdraw the diverter valve body assembly. 2. -
Page 52: Water Pressure Switch Replacement
SECTION 3 - SERVICING 3.29 CH WATER PRESSURE SWITCH REPLACEMENT 1. Refer to Section 3.8. 2. Drain the boiler. Refer to Section 3.21. 3. Pull off the two electrical connections. 4. Using a suitable tool, pull out the metal retaining clip. -
Page 53: Heat Engine Renewal
SECTION 3 - SERVICING 3.31 HEAT ENGINE REPLACEMENT Refer also to Section 2.1 - ‘Boiler Exploded View’ IMPORTANT Before starting the removal procedure, protect the gas and electrical controls with a waterproof sheet or plastic bag. 1. Refer to Section 3.8. 3.18, no. -
Page 54: Expansion Vessel Recharging & Replacement
SECTION 3 - SERVICING 3.32 EXPANSION VESSEL RECHARGING & REPLACEMENT RECHARGING Recharge 1. Refer to Section 3.8. Point 2. Remove the charge point cover. 3. Recharge the tank pressure to 0.75 bar. 4. Re-assemble in reverse order. 5. Check that the boiler operates in both DHW & CH modes. -
Page 55: Fault Finding
SECTION 4 - FAULT FINDING 4.1 FAULT FINDING CHART MAIN MENU GO TO SECTION 4.2 - ‘L1’ FLOW TEMPERATURE OVERHEAT LOCKOUT GO TO SECTION 4.3 - ‘L2’ IGNITION LOCKOUT 5 RESETS WITHIN 15 MINS - ‘LC’ TURN POWER OFF AND ON GO TO SECTION 4.4 - ‘L6’... -
Page 56: L1' - Flow Temp Overheat Lockout
SECTION 4 - FAULT FINDING 4.2 ‘L1’ - FLOW TEMPERATURE OVERHEAT LOCKOUT Is the Boiler and CH System filled with water and all Fill and vent the system and open all isolation and radiator valves open? isolation valves, then restart boiler Is the Flow/Return Differential across the Boiler in Check that the Pump is rotating freely. -
Page 57: L6' - False Flame Lockout
SECTION 4 - FAULT FINDING 4.4 ‘L6’ - FALSE FLAME LOCKOUT Check routing and integrity of internal boiler wiring is OK. Check Restart the boiler, does Boiler Work OK? condition of Flame Sense Electrode and replace if deteriorated. Replace Flame Detection Electrode Separate the flame detection electrode in-line connector. -
Page 58: F3' - Fan Fault
SECTION 4 - FAULT FINDING 4.7 ‘F3’ - FAN FAULT Does the wiring from the Fan to the PCB have Rectify Wiring & secure connections at both ends and has not connections deteriorated? Does the wiring have continuity? Replace PCB Is there 230Vac at the Blue and Brown connections to the 3 way connection on the Fan? Replace Fan... -
Page 59: F6' - Outside Sensor Fault
SECTION 4 - FAULT FINDING 4.10 ‘F6’ - OUTSIDE SENSOR FAULT Securely connect the wiring at both the Is the wiring securely connected at both the boiler and boiler and Outside Sensor Outside Sensor? Disconnect the wires to the outside sensor. Check the resistance using a suitable multimeter connected across the Outside Sensor’s terminal pins. -
Page 60: No Hw But Ch On
SECTION 4 - FAULT FINDING 4.12 NO HW BUT CH ON Does the display shows a “Tap symbol” when Is hot and cold pipework crossed? a tap is on? Adjust flow rates to achieve 35ºC Are the flow rates correct as per Section 1.2. Is the wiring connected temp rise and check filter fitted in between PCB and DHW... -
Page 61: Spare Parts
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. Failure to do so could affect safety or performance of this appliance. -
Page 62: Benchmark & Commissioning
SECTION 6 - BENCHMARK & COMMISSIONING Installation and Servicing... - Page 63 SECTION 6 - BENCHMARK & COMMISSIONING Benchmark Commissioning and Servicing Section It is a requirement that the boiler is installed and commissioned to the manufacturer’s instructions and the 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.
- Page 64 GAS BOILER SYSTEM COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference. CONTROLS Programmable room thermostat Optimum start control...
- Page 65 SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service Provider SERVICE 01 SERVICE 02 ² % ² % ² % ² % (Where Possible) (Where Possible) Signature Signature SERVICE 03 SERVICE 04...
- Page 66 FLOWCHART FOR CO LEVEL AND COMBUSTION RATIO CHECK ON COMMISSIONING A CONDENSING BOILER Important Preliminary Information on Checks The air gas ratio valve is factory-set and must not be adjusted DURING COMMISSIONING. If the boiler requires conversion to operate with a different gas family (e.g. conversion from natural gas to LPG) separate guidance is provided with the conversion kit supplied and this must be followed.
- Page 67 0.2%? sampling point. Allow readings to stabilise before recording. Turn off appliance and call Ideal Technical Helpline for advice The appliance must not be commissioned until problems are identified CO level less and resolved. If commissioning cannot be fully completed, the appliance than 350ppm AND CO/CO must be disconnected from the gas supply in accordance with GSIUR.
- Page 68 NOTES Installation and Servicing...
- Page 69 NOTES Installation and Servicing...
- Page 70 NOTES Installation and Servicing...
- Page 71 NOTES Installation and Servicing...
- Page 72 & servicing of central heating systems registered quality management system Technical Training 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 please ring: ... 01482 498432 Ideal Boilers Ltd.
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