Ideal Boilers LOGIC COMBI ESP1 24

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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 Boilers.

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.

April 2019

UIN 222353 A01

INSTALLATION

& SERVICING

LOGIC COMBI ESP1

24 30 35

Main Page

Table of Contents7
General8
Introduction10
Operation10
Safe Handling10
Optional Extra Kits11
Safety11
Safe Handling of Substances11
Location of Boiler11
Gas Supply12
Flue Installation12
Terminal13
Air Supply13
Water Circulation System13
Boiler Control Interlocks13
Electrical Supply13
Condensate Drain13
Boiler Dimensions, Services & Clearances14
System Requirements16
System Balancing16
Water Treatment16
Installation17
Boiler Assembly - Exploded View17
Unpacking18
Unpacking Cont'D19
Front Panel Removal19
Wall Mounting Template20
Preparing the Wall20
Fitting the Wall Mounting Plate20
Mounting the Boiler20
Determining the Flue Length & Flue Packs Req'D21
Cutting & Setting the Flue Length23
Installing the Flue24
Fitting the Optional Roof Flue Kit25
Flue Terminal Position26
Assembling the Roof Flue Kit27
Condensate Drain28
Connections & Filling30
Electrical Connections32
Installer Wiring32
External Wiring33
Replacing Pre-Fitted Mains Cable33
Wiring Diagram34
Commissioning and Testing35
Initial Lighting36
General Checks37
Restart Procedure38
Accessing the Installer Mode38
Handing over38
Servicing39
Servicing Schedule39
Boiler Front Panel Removal / Replacement40
Fan and Venturi Assembly Removal and Cleaning40
Burner Removal & Cleaning41
Cleaning the Condensate Trap/Siphon41
Cleaning the Heat Exchanger42
Reassembly42
Replacement of Components43
Fan Replacement43
Burner Injector Replacement44
Burner Replacement44
Return Thermistor Renewal45
Ignition Electrode Replacement45
Flame Detection Electrode Replacement46
Spark Generator Replacement46
Gas Control Valve Replacement46
Diverter Valve Actuator Replacement47
Condensate Trap/Siphon Replacement47
PCB Replacement48
DHW Flow Turbine Sensor Replacement48
Draining the Boiler49
Pressure Gauge Renewal49
Safety Relief Valve Renewal50
Pump Automatic Air Vent Replacement50
DHW Filter & Flow Reg Cleaning/Replacement50
Diverter Valve Body Assembly Replacement51
DHW Plate Heat Exch. Replacement51
Pump Head Replacement51
Water Pressure Switch Replacement52
Flow Thermistor Replacement52
Heat Engine Renewal53
Expansion Vessel Recharging & Replacement54
Fault Finding55
Fault Finding Chart Main Menu55
L1' - Flow Temp Overheat Lockout56
L2' - Ignition Lockout56
L6' - False Flame Lockout57
F1' - Low Water Pressure57
F2 or Fn or Ln' - Flame Loss57
F3' - Fan Fault58
F4 or L4' - Flow Thermistor Fault58
F5 or L5' - Return Thermistor Fault58
F6' - Outside Sensor Fault59
No CH Operation but HW Works OK59
No HW but CH on60
No Display60
Spare Parts61
Benchmark & Commissioning62

Boiler Type	Combi
Output	24 kW
Dimensions (H x W x D)	700 x 395 x 278 mm
Fuel Type	Natural Gas
Hot Water Flow Rate	9.8 l/min
Mounting	Wall-mounted
Warranty	7 years

Ideal Boilers LOGIC COMBI ESP1 24 - User Manual

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