Ideal Heating IMAX XTRA 2 User manual

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 Heating.
For the very latest copy of literature for specification and maintenance practices visit our website idealheating.com
where you can download the relevant information in PDF format.
CONVERSION KIT
PROPANE TO
NATURAL GAS
IMAX XTRA 2
80 120 160 200 240
HEATING
October 2021
UIN 230329 A01

2
Conversion Kit
INTRODUCTION
The kits can be applied to the boilers as per the table below.
NOTE: Screen displays shown in this manual are correct at date of issue. Software updates
installed after the date of issue may result in minor changes to screen displays.
Current Gas Safety (Installation & Use) Regulations or rules in force MUST be adhered to. It is law that
all gas appliances are installed and serviced by a Gas Safe Registered Installer or in IE a competent person,
in accordance with the regulations. Failure to install appliances correctly could lead to prosecution. It is in
your own interest, and that of safety, to ensure the law is complied with.
kW (NG) Product No.
Imax Xtra 2 80 225464
Imax Xtra 2 120 225465
Imax Xtra 2 160 225466
Imax Xtra 2 200 225467
Imax Xtra 2 240 225468
WARNING
ALWAYS TURN OFF THE GAS SUPPLY AT THE GAS SERVICE
COCK, AND SWITCH OFF AND DISCONNECT THE ELECTRICITY
SUPPLY TO THE APPLIANCE AND ANY EXTERNAL CONTROLS
BEFORE SERVICING OR REPLACING COMPONENTS.
NOTE: Boilers that have CAT. II included on the boiler data badge can be converted from
natural gas to propane and vice versa using a model specic conversion kit.
Boilers that show CAT. I on the data badge cannot be converted.
2H3P

3
Conversion Kit
KIT CONTENTS
LEGEND
A. 4 o󰀨 - M5 x12 mm bolts
B. Self adhesive Natural Gas data plate
C. O-ring
A CB
SAFETY
EXAMPLE: VR 22546400000001
FOR NATURAL GAS ONLY
PO BOX 103, NATIONAL AVENUE, HULL,
EAST YORKSHIRE, HU5 4JN
MAX. FLOW TEMPERATURE 90`C
kW (Btu/h)
I.P.20
NOX CLASS 6
24.0(81,900)
23.3(79,500)
kW (Btu/h)
BOILER TYPE:C 53 C 63 B 23
78.6(268,200)
MAX.
25.8(88,000)
NON-COND'G
WITH A GOVERNED METER
MADE IN THE UK BY IDEAL BOILERS LTD.
kW (Btu/h)
26.6(90,750)
HEAT OUTPUT "P" =
MIN.
HEAT INPUT "Q" =
COUNTRIES OF DESTINATION: GB, IE
NET
OPERATING WATER PRESSURE
PMS = 6.0 bar MAX, 0.3 bar MIN
2797
CAT. I 2H NATURAL GAS
230V 50HZ FUSED AT 13A
2H-G20-20mbar
MIN.
82.2(280,450)
POWER CONSUMPTION 110W
88.8(303,000)
MAX.
kW (Btu/h)
GROSS
80.0(272,950)
CONDENSING
80kW IMAX XTRA 2 80kW IMAX XTRA 2
CE 682118
80kW IMAX XTRA 2
RECORD THE ORIGINAL BOILER DETAILS
BOILER TO BE INSTALLED
GAS SUPPLY PRESSURE 20mbar
IMPORTANT
After completing the servicing or replacement of components always:
• Test for gas soundness.
• Check the water system is correctly lled and free of air. Air in the boiler
could cause damage to the heat exchanger.
•With the system hot examine all water connections for soundness.
• Check the gas rate and measure the combustion CO/CO2content. The
CO/CO2 ratio of the ue gas should not be greater than 0.004 ratio & the
CO should not exceed 350ppm.
• Carry out functional checks as appropriate.
It is the law that any service work must be
carried out by a Suitably qualied Gas Safe
Registered Engineer. In IE service work
must be carried out by a competent person.
WARNING
ALWAYS TURN OFF THE GAS SUPPLY
AT THE GAS SERVICE COCK, AND
SWITCH OFF AND DISCONNECT
THE ELECTRICITY SUPPLY TO THE
APPLIANCE AND ANY EXTERNAL
CONTROLS BEFORE SERVICING OR
REPLACING COMPONENTS.

4
Conversion Kit
CASING REMOVAL AND ACCESS
Side Panels
4. On the side panel, undo the two screws at the rear and
two at the front.
Lift from the frame and remove.
Top Panel
1. Remove the two bolts at the rear of the top panel. Lift up
from side panel retention studs and remove.
Front Panel
3. Remove the 3 bolts along the top of the front panel. The
bolts are visible when the control pod is removed. Pull
the panel forwards at the top, lift out of bottom slot and
remove.
Control Pod
2. Remove the bolt at the rear of the control pod.
Disconnect the electrical harnesses from the rear.
Lift the pod up and remove.
CONTROL POD
REMOVAL
DETAIL C
SCALE 1:5
CONTROL POD
REMOVAL (SCREW)
DETAIL
B
SCALE
1:5
SECTION 3.7
REMOVAL AND ACCESS
SECTION 3.8
FAN REMOVAL

5
Conversion Kit
1. Whilst supporting the gas valve, remove the four bolts
securing the gas valve to the venturi.
2. Remove the gasket and orice plate as shown in the
exploded view below. Replace the existing O-ring on
the gas valve side with the new O-ring supplied in the
conversion kit and ensure it is secure.
3. Replace the four bolts that have been removed with the
four new M5 x 12mm bolts supplied in the conversion kit.
Ensure an even tightening sequence of the bolts.
REMOVING THE ORIFICE PLATE
Gasket
Orice plate
Gas valve
Venturi
O-ring Bolts
FLUE ADAPTOR (200 kW BOILER ONLY)
NOTE: The ue adaptor that was installed on a 200kW boiler only, as part of the LPG conversion kit, can remain in place.
The adaptor has no negative e󰀨ect on performance when running the boiler on natural gas.

6
Conversion Kit
RE-LOADING THE NATURAL GAS PARAMETERS
MENU
Switched Live Control
Burner Stabilisation
HeatingHot Water
ACTUALTARGET
75°75°
ACTUALTARGET
75°75°
Demand OnNo Demand
100%8°
NEXT
No Yes
Boiler Conversion
Gas Type
NEXTNEXTNEXT
Natural Gas ANZ
LPG
Natural Gas
Menu
Status Settings
Configuration
Service
Access Level
View Config Flow Temperature
Boiler Conversion Factory Reset
Configuration
NEXT
No Yes
Restore Current Configuration
PROCEEDCANCEL
Performing this action will reconfigure
using current configuration settings.
Are you sure?
NEXT
Boiler Power
80kW
Gas Type
Boiler Power
Set
NG
80kW
11
Gas Type
NEXTNEXTCONFIRM
Yes Yes
Config
User Menu
Select the boiler type then press NEXT
Boiler Conversion
Select the boiler size from the list using
the up/down arrows then press SELECT
Proceed
MENU
CONFIRM
1. Refer to safety section.
2. Enter service mode using access code 529. Please refer to
the Installation & Servicing manual for further information
on this.
3. Follow the steps below to upload the parameters for Natural
Gas.
Steps to follow for boiler that has been previously congured as an LPG boiler

7
Conversion Kit
GAS VALVE ADJUSTMENT
Maximum rate adjustment
1. Switch the boiler on and set the boiler into service mode
maximum which will last for 10 mins but can be exited
earlier.
2. To ensure the boiler operates at maximum rate without
modulating, set the fan speed to maximum following the
steps in the gas valve adjustment diagram on the next page.
3. Using the maximum rate adjustment screw adjust the valve
until the CO2 valve measures 9.7% (Note:- clockwise
reduces the CO2).
Minimum rate adjustment
4. To ensure the boiler operates at minimum rate without
modulating, set the fan speed to minimum following the
steps in the gas valve adjustment diagram on the next page.
5. Using the minimum rate adjustment screw adjust the valve
until the CO2 valve measures 9.5% (Note:- Anticlockwise
reduces the CO2).
6. Reset the boiler back to maximum rate and measure the
CO2.
If this does not measure 9.7% ± 0.2% repeat steps 3 to 5 above. Press the Home button to return to the Home screen. Seal the
adjustment screw with tamper proof paint and replace caps where applicable.
MODELS: 160 kW, 200 kW & 240 kW
Maximum rate adjustment screw
Minimum rate adjustment screw
(Remove cap for access)
Maximum rate adjustment screw
(Remove cap for access)
MODELS: 80 kW & 120 kW
Minimum rate adjustment screw
(Remove cap for access)

8
Conversion Kit
ACCESSING SERVICE MODE FOR GAS VALVE ADJUSTMENT
MENU
Switched Live Control
Burner Stabilisation
HeatingHot Water
ACTUALTARGET
75°75°
ACTUALTARGET
75°75°
Demand OnNo Demand
100%8°
Menu
Status Settings
Configuration
Service
Access Level
Maximum Rate
Target Fan Speed
Actual Fan Speed
Time Remaining
Flow Temperature
Return Temperature
Flame Current
6800 rpm
6800 rpm
10 Minutes
75°c
60°c
5.7µA
MIN RATE
Minimum Rate
Target Fan Speed
Actual Fan Speed
Time Remaining
Flow Temperature
Return Temperature
Flame Current
6800 rpm
6800 rpm
10 Minutes
75°c
60°c
5.7µA
MAX RATE
To set the boiler to run at
Maximum Rate for 10 Minutes
press Maximum Rate
The boiler will run at Maximum Rate for
10 minutes unless the system load is
insufficent
The boiler will automatically move back
to normal operation after 10 minutes
To move directly to Minimum Rate
press MIN RATE
The boiler will run at Minimum Rate for
10 minutes unless the system load is
insufficent
The boiler will automatically move back
to normal operation after 10 minutes
To move directly to Maximum Rate
press MAX RATE
To set the boiler to run at
Minimum Rate for 10 Minutes
press Minimum Rate
Press MENU
Press Service

9
Conversion Kit
PROPANE DATA LABEL AND OVERLAY
1. Ensure that the boiler has had the orice plate removed and
the parameters have been updated for Natural Gas.
2. The boiler front panel will need to have been removed to
expose the location where the labels are to be a󰀩xed.
3. Record the original boiler serial number (located on the
overlay Label) onto the Natural Gas data label and the two
tear o󰀨 strips.
4. Once all details have been recorded, adhere one of the two
tear o󰀨 strips over the existing label at the rear of the boiler
and the other one over the existing label on the cover of the
installation manual.
5. Adhere the Natural Gas label over the existing overlay data
label located at the front of the boiler as shown below.
Natural Gas data plate
label to be a󰀩xed here on
top of the Overlay label
Propane data plate
label to be removed
from the boiler Existing Master
Barcode label
Typical view looking at the front of all boilers (front panel removed)

Conversion Kit
10
NOTES