Ideal Boilers i-mini 24 - User Manual

August 2014
UIN 210919 A01
INSTALLATION
AND SERVICING
24, 30
For users guide see reverse of book
For details of document amendments, refer to page 3
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.

Summary

NOTES FOR THE INSTALLER

SAFETY

LOCATION OF BOILER

GAS SUPPLY

FLUE INSTALLATION

CONDENSATE DRAIN

BOILER DIMENSIONS, SERVICES & CLEARANCES

SYSTEM REQUIREMENTS - Central Heating

INSTALLATION

DETERMINING THE FLUE LENGTH AND FLUE PACKS REQUIRED

Guidance on selecting the correct flue kit and calculating lengths based on boiler output.

CUTTING & SETTING THE FLUE LENGTH

Detailed instructions for cutting and setting flue lengths according to specifications.

INSTALLING THE FLUE

FITTING THE OPTIONAL ROOF FLUE KIT (Flat or Pitched)

ASSEMBLING THE ROOF FLUE KIT

FLUE TERMINAL POSITION

CONDENSATE DRAIN

CONNECTIONS & FILLING

Details on making water, gas, and safety valve connections and filling the system.

ELECTRICAL CONNECTIONS

Information on wiring requirements for the boiler and external controls.

WIRING DIAGRAM

COMMISSIONING AND TESTING

Procedures for electrical and gas installation checks and final commissioning.

INITIAL LIGHTING

Step-by-step guide for starting the boiler for the first time.

GENERAL CHECKS

INTERNAL WIRING

SERVICING

SERVICING SCHEDULE

Recommendations for regular servicing and maintenance of the boiler.

GAS CONTROL VALVE REPLACEMENT

MAIN PCB REPLACEMENT

USER CONTROL PCB REPLACEMENT

DRAINING THE BOILER

DHW PLATE HEAT EXCHANGER REPLACEMENT

HEAT ENGINE RENEWAL

FAULT FINDING

ALTERNATING L AND 1 - FLOW TEMPERATURE OVERHEAT LOCKOUT

Troubleshooting steps for overheat lockout due to flow temperature or water issues.

ALTERNATING L AND 2 - IGNITION LOCKOUT

Troubleshooting for ignition lockout where the boiler ignites briefly then extinguishes.

ALTERNATING F AND 2 - FLAME LOSS

Troubleshooting for flame loss faults, including ignition and detection issues.

ALTERNATING F AND 5 - RETURN THERMISTOR FAULT

Troubleshooting for faults indicated by the return thermistor.

ALTERNATING F AND 9 - PCB FAULT

Troubleshooting for faults related to the main Printed Circuit Board (PCB).

NO CH OPERATION BUT HW WORKS OK

Diagnostic steps when central heating fails but hot water functions correctly.

NO HW BUT CH ON

Troubleshooting for hot water failure when central heating is operational.

Benchmark Commissioning and Servicing Section

GAS BOILER SYSTEM COMMISSIONING CHECKLIST

SERVICE RECORD

FLOWCHART FOR CO LEVEL AND COMBUSTION RATIO CHECK ON COMMISSIONING A CONDENSING BOILER

USERS GUIDE

SAFETY

Crucial safety information regarding gas and electrical installations.

2. BOILER OPERATION

3. SYSTEM WATER PRESSURE

4. CONDENSATE DRAIN

5. GENERAL INFORMATION

ESCAPE OF GAS

Emergency procedures to follow in case of a suspected gas leak.

7. NORMAL OPERATION DISPLAY CODES

8. FAULT CODES

Ideal Boilers i-mini 24 Specifications

General

Output	24 kW
Fuel Type	Natural Gas
Mounting	Wall Mounted
ERP Rating	A
CH Output (kW)	24 kW
DHW Output (kW)	24 kW
Flow Rate (l/min)	9.8 l/min
Type	Combination Boiler
Efficiency	A Rated