IDEAL C24 Logic Max Combi2 Instruction manual
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Ideal C24 is an advanced boiler system engineered to deliver exceptional comfort and efficiency. Its condensing technology minimizes energy consumption and reduces carbon footprint. With its wide range of capabilities, Ideal C24 is the perfect choice for homeowners seeking reliable and efficient heating and hot water solutions.
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INSTALLATION
& SERVICING
LOGIC MAX COMBI
2
C24 C30 C35
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.
July 2022
UIN 228290 A05
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
Part Load
Auxiliary Electricity Consumption
Full Load
Part Load
Standby
Seasonal Space Heating Energy Efficiency
Full Load
Part Load
Standby Loss
Ignition
Emissions NOx (Gross)
Annual Energy Consumption
Sound Power Level, Indoors
Domestic Hot Water
Domestic Hot Water
Water heating energy efficiency (Eco) Tapping Profile L
Daily fuel consumption 24hr (GCV) Actual measured
Annual electricity consumption
Annual fuel consumption
ERP DATA
SYMBOL n/a n/a n/a n/a n/a n/a
P4
P1 elmax elmin
PSB ƞ4 ƞ1
Pstby
Pign
%
% kW kW
NOx, pond Hs mg/kWh
QHE
LWA
GJ dB
Qelec ƞWH
Qfuel
AEC
AFC kWh
% kWh kWh
GJ kW kW kW kW kW
UNITS n/a n/a n/a n/a n/a n/a
90
98.6
0.05
0
28
75
50
0.136
82
14.7
29
11
24.3
8
0.044
0.013
0.002
24 kW yes no no no no yes
90
98.6
0.05
0
30
75
46
0.137
79
15.14
29
11
24.3
8
0.028
0.026
0.002
35 kW yes no no no no yes
90
98.6
0.05
0
25
75
46
0.133
81
14.83
28
11
MODEL
30 kW yes no no no no yes
24.3
8
0.028
0.009
0.003
2
WEEE DIRECTIVE 2012/19/EU
Waste Electrical and Electronic Equipment Directive
• At the end of the product life, dispose of the packaging
and product in a corresponding recycle centre.
• Do not dispose of the unit with the usual domestic refuse.
• Do not burn the product.
• Remove the batteries.
• Dispose of the batteries according to the local statutory
requirements and not with the usual domestic refuse.
The code of practice for the installation, commissioning & servicing of central heating systems
Installation and Servicing
PRODUCT FICHE
LOGIC MAX COMBI 2 C BOILER
Ideal Heating ERP DATA
SYMBOL
Condensing boiler
Seasonal space heating efficiency class
Rated heat output
Seasonal space heating energy efficiency
Annual energy consumption
Sound power level, indoors
Water heating energy efficiency class ƞ s
Q
HE
L
WA
Seasonal Space Heating Energy Efficiency of the Boiler
UNITS kW
%
GJ dB
Temperature control (from fiche of temperature control)
Class I Class II Class III Class IV
1% 2% 1.5% 2%
Class V
3%
Class VI
4%
Class VII
3.5%
24 kW
50
Class VIII
5%
MODEL
30 kW
Yes
A
24
94*
75
46
A
35 kW
46
94%
*% A
% B
Solar Contribution (from fiche of solar device)
Collector Size
(in m 2 )
Tank Volume
(in m 3 )
Collector
Efficiency
(in %)
Tank rating
A* = 0.95
A = 0.91
B = 0.86
C = 0.83
D-G = 0.81
= (‘ III ’x + ‘ IV ’ x ) x 0.9 x ( / 100 x ) =
%
C
%
Seasonal Space Heating Energy Efficiency of Package TOTAL: A+B+C=
Seasonal Space Heating Energy Efficiency Class of Package
< 30%
F
≥ 30%
E
≥ 34%
D
≥ 36%
C
≥ 75%
B
≥ 82%
A
≥ 90%
A+
≥ 98%
A++
≥ 125%
A+++
≥ 150%
The energy efficiency of the package of products provided for in this document may not correspond to its actual energy efficiency once installed in a building, as the efficiency is influenced by further factors such as heat loss in the products in relation to the building size and its characteristics.
Installation and Servicing 3
NOTES FOR THE INSTALLER
For any technical queries please ring the Ideal installer helpline : 01482 498663
BOILER RESTART PROCEDURE -
Press the RESTART button. The boiler will repeat the ignition sequence if a heat demand is present.
DEFINITIONS
WARNING:
Risk of injury or death
CAUTION:
Risk of damage to objects
IMPORTANT:
Important information
Table of Acronyms
CH - Central Heating
DHW - Domestic Hot Water
TRV - Thermostatic Radiator Valve
PRV - Pressure Relief Valve
IE - Ireland
ETCI - Electro-Technical Council of Ireland
BS - British Standard
WRAS - Water Regulations Advisory Scheme
SAP - Standard Assessment Procedure
IEE - Institution of Electrical Engineers
UKCA - UK Conformity Assessed
RHS - Right Hand Side
LHS - Left Hand Side
PCB - Printed Circuit Board
4
Ideal Heating reserve the right to vary specification without notice
Installation and Servicing
CONTENTS
Section 1 - General ..................................................................................... 6
1.1 Introduction ................................................................................... 8
1.2 Operation ...................................................................................... 8
1.3 Safe Handling ............................................................................... 8
1.4 Optional Accessories .................................................................... 8
1.5 Safety............................................................................................ 9
1.6 Safe Handling of Substances ....................................................... 9
1.7 Location of Boiler ......................................................................... 9
1.8 Air Supply ................................................................................... 10
1.9 Gas Supply ................................................................................. 10
1.10 Water Circulation System ........................................................... 10
1.11 Boiler Controls ............................................................................ 10
1.12 Electrical Supply ......................................................................... 10
1.13 Condensate Drain ....................................................................... 10
1.14 Boiler Dimensions, Services & Clearances .................................11
1.15 System Requirements - Central Heating .................................... 12
1.16 System Requirements - DHW ..................................................... 13
1.17 System Balancing ....................................................................... 13
1.18 Water Treatment ......................................................................... 13
Section 2 - Installation .............................................................................. 14
2.1 Boiler Assembly - Exploded View ............................................... 14
2.2 Unpacking ................................................................................... 15
2.3 Wall Mounting Template.............................................................. 16
2.4 Preparing the Wall ...................................................................... 16
2.5 Fitting the Wall Mounting Plate ................................................... 16
2.6 Mounting the Boiler ..................................................................... 16
2.7 Flues and Locations.................................................................... 17
2.8 Flues and Locations - Continued ................................................ 18
2.9 Horizontal Flue Positions ........................................................... 19
2.10 Vertical Flue Positions ............................................................... 19
2.11 Flue System Dimensions ........................................................... 20
2.12 Fitting the Turret.......................................................................... 20
2.13 Cutting the Flue .......................................................................... 21
2.14 Assembling the Vertical Flue ...................................................... 22
2.15 Condensate Drain ....................................................................... 23
2.16 Condensate Drain - Cont. ........................................................... 24
2.17 Connections & Filling .................................................................. 25
2.18 Connections & Filling Cont. ........................................................ 26
2.19 Electrical Connections ................................................................ 27
2.20 Installer Wiring ............................................................................ 27
2.21 External Wiring ........................................................................... 28
2.22 Wiring Diagram ........................................................................... 29
2.23 Replacing Pre-Fitted Mains Cable .............................................. 30
2.24 Commissioning and Testing ........................................................ 30
2.25 Initial Lighting .............................................................................. 31
2.26 User Interface Commissioning .................................................... 32
2.27 Changing Boiler Operating Mode .............................................. 32
2.28 Preheat Function ....................................................................... 32
2.29 Intelligent Preheat Function ....................................................... 32
2.30 Menu Operation .......................................................................... 33
2.31 Setting Maximum and Minimum Rates ....................................... 33
2.32 General Checks .......................................................................... 34
2.33 Restart Procedure ....................................................................... 35
2.34 Handing Over.............................................................................. 35
Section 3 - Servicing ................................................................................. 36
3.1 Servicing Schedule ..................................................................... 36
3.2 Removal / Replacement of Components .................................... 37
3.3
3.4
3.5
3.6
Draining the Boiler ...................................................................... 37
Boiler Front Panel Removal / Replacement ................................ 38
Flue Manifold Removal/Replacement ......................................... 38
Fan and Venturi Assembly Removal and Cleaning ..................... 39
3.7
3.8
Burner Removal and Cleaning .................................................... 40
Cleaning the Heat Exchanger ..................................................... 40
3.9 Ignition / Detection Electrode Replacement / Inspection ............ 41
3.10 Cleaning the Condensate Trap ................................................... 41
3.11 Burner Injector Replacement ...................................................... 42
3.12 DHW Filter & DHW Flow Regulator Cleaning/Replacement ....... 42
3.13 External System Filter Cleaning Guide ....................................... 42
3.14 Burner Replacement ................................................................... 43
3.15 Return Thermistor Replacement ................................................. 43
3.16 Spark Generator Replacement ................................................... 43
3.17 Gas Control Valve Replacement ................................................. 44
3.18 Diverter Valve Actuator Replacement ......................................... 44
3.19 Condensate Trap Replacement / Cleaning ................................. 44
3.20 Primary PCB Replacement ......................................................... 45
3.21 DHW Flow Turbine Sensor Replacement ................................... 46
3.22 Pressure Gauge Replacement ................................................... 46
3.23 PRV Replacement ...................................................................... 47
3.24 Pump Automatic Air Vent Replacement ..................................... 47
3.25 Replacement of DHW Thermistor ............................................... 48
3.26 DHW Plate Heat Exchanger Replacement ................................. 48
3.27 Diverter Valve Body Assembly Replacement .............................. 49
3.28 Pump Head Replacement ........................................................... 50
3.29 CH Water Pressure Switch Replacement ................................... 50
3.30 Flow Thermistor Replacement .................................................... 51
3.31 Heat Engine Replacement .......................................................... 52
3.32 Expansion Vessel Recharging & Replacement .......................... 53
Section 4 - Fault Finding ........................................................................... 54
4.1
4.2
4.3
4.4
Main Menu, Fault Help ................................................................ 54
Overheat Lockout ....................................................................... 54
Ignition Lockout........................................................................... 55
Flame On Before Gas Valve On ................................................. 55
4.5
4.6
4.7
4.8
Low Water Pressure ................................................................... 55
Flame Loss ................................................................................. 56
Fan Fault..................................................................................... 56
Flow Thermistor Fault ................................................................ 57
4.9 Return Thermistor Fault ............................................................. 57
4.10 Outside Sensor Fault .................................................................. 58
4.11 No CH Operation but DHW works OK ........................................ 58
4.12 No DHW but CH Works OK ........................................................ 59
4.13 No Display .................................................................................. 60
4.14 DHW Thermistor Fault ................................................................ 60
Section 5 - Spare Parts ............................................................................ 61
Section 6 - Benchmark to Commissioning ................................................ 62
Installation and Servicing 5
Section 1 - General
Table 1 General Data
Gas Supply
Gas Supply Connection
Injector Size
Inlet Connection
Outlet Connection
Flow Connection
Return Connection
Flue Terminal Diameter
Average Flue Temp-Mass Flow Rate
CO2 Content (± 0.7) mm
Cold Water
Cold Hot Water
Central Heating
Central Heating mm
DHW
Max. DHW
Min. CH bar (psi) bar (psi) [kPa] bar (psi) [kPa]
Maximum Working Pressure (Sealed Systems)
Maximum Domestic Hot Water Inlet Pressure
Minimum Domestic Hot Water Inlet Pressure*
Minimum DHW Inlet Pressure to Operate at 0.6 bar System Pressure
Electrical Supply
Power Consumption
Fuse Rating
Water Content
Packaged Weight
Lift Weight
Boiler Casing Size
W
Central Heating litre (gal)
Domestic Hot Water litre (gal) kg kg
Height mm
Width mm
Depth mm
24 kW
4.15
30 kW
2H - G20 - 20 mbar
15 mm copper compression
4.65
15 mm copper compression
35 kW
4.9
63ºC - 11g/s
9.2%
8.5%
15 mm copper compression
22 mm copper compression
22 mm copper compression
100
68ºC - 13g/s
9.3%
8.5%
2.5 (36.3)
73ºC - 15g/s
9.7%
8.8%
0.8(11.6)[80]
34.8
28.5
10.0 (145) [1000]
1.3(18.9) [130] 1.3(18.9)**[130]
All Model Sizes 0.5 bar
94
230 V ~ 50 Hz
93 110
External : 3 A Internal : T4A HRC L250 V
1.2 (0.26)
1.0 (0.22)
35
28.6
700
395
278
35
28.6
6
*Required for maximum flow rate. Boiler operates down to 2 L/min DHW delivery
** In areas of low water pressure the DHW restrictor can be removed
Table 2 Performance Data - Central Heating
Boiler Input: Max
Boiler ‘Q’ Net CV
Gross CV
Gas Consumption kW kW
24.3
27 m 3 /h 2.512
(ft 3 /h) (89)
Boiler Output :
Non Condensing
70ºC Mean Water Temp.
kW 24.2
Condensing
40ºC Mean Water Temp.
kW 25.6
Seasonal Efficiency* SEDBUK 2005
Seasonal Efficiency* SEDBUK 2009/2012
NOx Classification
Min
24 kW 30 kW 35 kW
4.9
6.1
7.1
5.4
0.5
(17.8)
6.7
0.627
(22)
7.9
0.734
(25.9)
4.8
5.1
6.1
6.4
7.1
7.5
91.10% 91.10% 91.10%
89.60% 89.60% 89.60%
CLASS 6
Note. Gas consumption is calculated using a calorific value of
38.7 MJ/m 3 (1038 Btu/ft 3 ) gross or 34.9 MJ/m 3 (935 Btu/ft 3 ) nett
To obtain the gas consumption at a different calorific value: a. For l/s - divide the gross heat input (kW) by the gross C.V. of the gas (MJ/m 3 ) b. For Btu/h - multiply the gross heat input (kW) by 26.8
c. For ft 3 /h - divide the gross heat input (Btu/h) by the gross C.V. of the gas (Btu/ft 3 ) d. For m 3 /h - multiply l/s by 3.6
Table 3 Performance Data - Domestic Hot Water
Maximum DHW Input:
Boiler ‘Q’ Net CV
Gross CV
Gas Consumption
Maximum DHW Output
DHW Flow Rate
At 35ºC Temp. Rise
DHW Specific Rate kW kW m 3 /h ft 3 /h kW l/min gpm l/min gpm
24 kW 30 kW 35 kW
24.3
30.4
35.4
27 33.7
39.3
2.512
89
24.2
3.135
111
30.3
3.657
129
35.3
9.9
2.2
11.5
2.5
12.4
2.8
14.5
3.2
14.5
3.2
16.9
3.7
* The value is used in the UK Government’s Standard Assessment
Procedure (SAP) for energy rating of dwellings. The test data from which it has been calculated, has been certified by a notified body.
C13 C33 C53 = A room sealed appliance designed for connection via ducts to a horizontal or vertical terminal, which admits fresh air to the burner and discharges the products of combustion to the outside through orifices which, in this case, are concentric. The fan is up stream of the combustion chamber.
I
2H
= An appliance designed for use on 2nd family gas, Group H only.
II
2H/3P
= An appliance designed for use on 2nd or 3rd family gases,
Group H or P.
Installation and Servicing
LOGIC MAX COMBI
2
C
Natural Gas Only
BOILER SIZE kW
24
30
35
G.C. Applicance No
(Benchmark No.)
47-349-99
47-387-01
47-387-02
Destination Country: GB
Section 1 - General
For UK, to comply with Building Regulations Part L1 (Part 6 in Scotland) the boiler should be fitted in accordance with the manufacturer’s instructions. Self-certification that the boiler has been installed to comply with Building Regulations can be demonstrated by completing and signing the Benchmark Commissioning Checklist.
Before installing this boiler, read the Code of Practice sheet at the rear of this book.
BENCHMARK COMMISSIONING CHECKLIST DETAILS
B
oiler ........................................................................
Page
Make and model ...................................................... Above
Appliance serial no. on data badge ................Front Cover
SEDBUK No. % ................................................................6
Controls
Time and temperature control to heating ........................28
Heating zone valves .......................................................13
TRVs ...............................................................................10
Auto bypass ....................................................................13
Boiler interlock ................................................................10
For all boilers
Flushing to BS.7593 .......................................................13
Inhibitor ...........................................................................13
Central heating mode
Heat input ................................................. to be calculated
B
oiler ........................................................................
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 .................................................................13
Hot water mode
Heat input ................................................. to be calculated
Max. operating burner pressure ....................................n/a
Max. operating water pressure ..............measure & record
Cold water inlet temp .............................measure & record
Hot water outlet temp. ...........................measure & record
Water flow rate at max. setting ..............measure & record
For condensing boilers only
Condensate drain ..................................................... 23-24
For all boilers: Complete, sign & hand over to customer
NOTE TO THE INSTALLER: COMPLETE THE BENCHMARK COMMISSIONING
CHECKLIST AND LEAVE THESE INSTRUCTIONS WITH APPLIANCE
For assistance call
Technical Helpline
01482 498663
Installation and Servicing 7
8
Section 1 - General
1.1 INTRODUCTION
The Logic Max Combi 2 C range of boilers are wall mounted, condensing, combination gas boilers.
Features:
• High efficiency
• Full sequence
• Automatic spark ignition
• Low water content
• Fanned flue
The boiler is supplied fully assembled with a DHW plate heat exchanger, diverter valve, circulating pump, pressure gauge,
PRV and CH expansion vessel.
Variable CH and DHW temperature controls are fitted on the user control and the boiler features a DHW preheat facility.
The boiler includes as standard:
-
-
-
Automatic bypass
Boiler frost protection
Daily pump and diverter valve exercise.
The boiler casing is of white painted mild steel with a white polymer front panel.
The boiler temperature controls are visibly located in the control panel on the front of the boiler.
The heat exchanger is manufactured from cast aluminium.
The boiler is suitable for connection to fully pumped, sealed heating systems ONLY. Adequate arrangements for completely draining the system by provision of drain cocks
MUST be provided in the installation pipework.
Pipework from the boiler is routed downwards.
A PRV grommet is fitted to the boiler which requires the correct fitting and securing of a clip (supplied) to ensure safe discharge of the PRV should this occur.
The Ideal System filter is supplied with this boiler. Installation instructions for this are located within the system filter box.
Be sure to follow Ideal System filter installation and maintenance guide for correct method of installation. Failure to install the system filter correctly will affect boiler warranty.
Data Plate
The boiler model and serial number are shown on the data label which can be located on the bottom of the boiler casing, shown in - Water & Gas Connection Diagram.
Refer to Section
1.14
When there is a demand for CH, the heating system is supplied at the selected temperature of between 30 o C and
80 o C, until DHW is drawn off. The full output from the boiler is then directed via the diverter valve to the plate heat exchanger to supply a nominal DHW draw-off of:
24 kW 9.9 l/min at 35ºC temperature rise.
30 kW 12.4 l/min at 35ºC temperature rise.
35 kW 14.5 l/min at 35ºC temperature rise.
The DHW draw off rate specified above is the nominal that the boiler flow regulator will give. Due to system variations and seasonal temperature fluctuations DHW flow rates/temperature rise will vary, requiring adjustment at the draw off tap.
At low DHW draw-off rates the maximum temperature may exceed 65ºC.
The boiler features a comprehensive diagnostic system which gives detailed information on the boiler status when operating, and performance of key components to aid commissioning and fault finding.
1.3 SAFE HANDLING
This boiler may require 2 or more operatives to move it to its installation site, remove it from its packaging base and during movement into its installation location. Manoeuvring the boiler may include the use of a sack truck and involve lifting, pushing and pulling.
Caution should be exercised during these operations.
Operatives should be knowledgeable in handling techniques when performing these tasks and the following precautions should be considered:
• Grip the boiler at the base.
• Be physically capable.
• Use personal protective equipment as appropriate, e.g. gloves, safety footwear.
During all manoeuvres and handling actions, every attempt should be made to ensure the following unless unavoidable and/or the weight is light.
• Keep back straight.
• Avoid twisting at the waist.
• Avoid upper body/top heavy bending.
• Always grip with the palm of the hand.
• Use designated hand holds.
• Keep load as close to the body as possible.
• Always use assistance if required.
1.2 OPERATION
With no demand for CH, the boiler fires only when DHW is drawn off, or periodically for a few seconds without any DHW draw-off, in order to maintain the DHW plate heat exchanger in a heated condition. This only occurs if the “PREHEAT” button is pressed and the display reads “PREHEAT ON or
PREHEAT TIMED”.
1.4 OPTIONAL ACCESSORIES
Please visit idealheating.com to access the optional accessories for this boiler.
SCAN for link
Installation and Servicing
Section 1 - General
1.5 SAFETY
Current Gas Safety (installation and use) regulations or rules in force:
The appliance is suitable only for installation in the UK and should be installed in accordance with the rules in force.
In the UK, installations must be carried out by a Gas Safe
Registered Engineer. It must be carried out in accordance with the relevant requirements of the:
• Gas Safety (Installation and Use) Regulations
• Appropriate Building Regulations, either The Building
Regulations, The Building Regulations (Scotland), Building
Regulations (Northern Ireland).
• Water Fittings Regulations or Water byelaws in Scotland.
• Current I.E.E. Wiring Regulations.
Where no specific instructions are given, reference should be made to the relevant British Standard Code of Practice.
1.6 SAFE HANDLING OF SUBSTANCES
No asbestos, mercury or CFCs are included in any part of the boiler or its manufacture.
1.7 LOCATION OF BOILER
The boiler must be installed on a flat and vertical internal wall, capable of adequately supporting the weight of the boiler and any ancillary equipment.
The boiler may be fitted on a combustible wall and insulation between the wall and the boiler is not necessary, unless required by the local authority.
The Boiler has been tested and certified to:
BSEN 15502-1, BSEN 15502-2, BSEN 15502-2-1,
BSEN 60335-1, BSEN 60335-2-102, BSEN 55014-1 and
BSEN 55014-2 for use with Natural Gas & Propane.
Detailed recommendations are contained in the following
British Standard Codes of Practice:
BS5440:1
BS5440:2
Flues (for gas appliances of rated input not exceeding 70 kW).
Ventilation (for gas appliances of rated input not exceeding 70 kW).
BSEN12828 Heating Systems in buildings: Design for water based heating systems.
BSEN12831 Heating Systems in buildings: Method for calculation of the design heat load.
BSEN14336 Heating Systems in buildings: Installation and commissioning of water based heating
systems.
BS5546
BS6798
Installation of gas hot water supplies for domestic purposes (2nd Family Gases)
Installation of gas fired hot water boilers of rated input not exceeding 70 kW.
BS6891 Installation and maintenance of low pressure gas installation pipework.
BS 7593:2019 Code of practice for the preparation, commissioning and maintenance of domestic central heating and cooling water systems.
WARNING:
Rear access to the boiler is not permitted.
CAUTION:
Do not fit the boiler outside.
Timber Framed Buildings
Boilers installed in a timber-framed building must comply with
IGE/UP7 +A 2008.
Bathroom Installations
CAUTION: This appliance is IP20 rated, do not clean with jets of water.
You may install the boiler in any internal space. The installation must comply with the current IEE (BS 7671) Wiring Regulations and the electrical regulations applicable in Scotland.
If the appliance is to be installed in a room containing a bath or shower then the appliance must be installed beyond Zone 2, as detailed in BS7671.
600 m m
2
2*
1 1
600 mm
2
600 mm
2
1
600 mm
2
Health & Safety Document No.635.
The Electricity at Work Regulations, 1989.
The manufacturer’s notes must NOT be taken, in any way, as overriding statutory obligations.
IMPORTANT:
This appliance is UKCA/CE certificated for safety and performance. Do not connect external control devices directly to this appliance unless recommended in this manual or by Ideal Heating in writing. If in doubt, please enquire.
Unapproved control devices could invalidate the warranty of this appliance and infringe the Gas Safety Regulations.
A
A
Bathroom Installations
[0] Zone 0
[1] Zone 1
[2] Zone 2
[2*] Without the end wall, zone 2 must extend 600 mm from the bath
[A] 600 mm radius from the bath or shower
A
0010017086-002
Installation and Servicing 9
10
Section 1 - General
Compartment Installations
A boiler installed in a compartment does not require ventilation.
However, A boiler installed in a compartment must provide adequate clearances for servicing. The compartment should also be fitted with a suitable label in accordance with current standards.
Refer to Section
1.14
Installation pipes must be fitted in accordance with BS6891.
The complete installation MUST be tested for gas tightness and purged as described, for the majority of installations the appropriate standard is IGEM/UP/1B [23], but alternatively
IGEM/UP/1 [21] or IGEM/UP/1A [22], as appropriate, can be utilized.
1.8 AIR SUPPLY
It is not necessary to have an air vent in the room or internal space where the boiler is installed.
1.10 WATER CIRCULATION SYSTEM
IMPORTANT:
A minimum length of 1 metre of copper pipe MUST be fitted to both flow and return connections from the boiler before connection to any plastic piping.
The central heating system should be in accordance with
BS6798 and, in addition, for smallbore and microbore systems,
BS5449.
Water treatment is covered later in these instructions.
Refer to Section
1.18
1.9 GAS SUPPLY
Consult the local gas supplier to establish an adequate supply of gas. Do not use existing service pipes without consulting the local gas supplier.
The gas supply must be governed with a meter.
A gas meter can only be connected by the local gas supplier or by a Gas Safe Registered Engineer.
An existing meter should be checked, preferably by the gas supplier, to ensure that the meter is adequate to deal with the required gas supply rate.
It is the responsibility of the Gas Installer to size the gas installation pipework in accordance with BS6891.
Whilst the principle of the 1:1 gas valve ensures the Logic range is able to deliver it is full output at inlet pressures as low as 14 mb, other gas appliances in the property may not be as tolerant. When operating pressures are found to be below the minimum meter outlet of 19 mb these should be checked to ensure this is adequate for correct and safe operation.
Allowing for the acceptable pressure loss of 1mb across the installation pipework, it can be assumed that a minimum permitted operating pressure of 18mb will be delivered to the inlet of the appliance.
(Reference BS6400-1 Clause 6.2 Pressure Absorption).
The external gas cock could further reduce the operating pressure when measured at its test point. The pressure drop is relative to the heat input to the boiler (kW), refer to graph below.
Gas Cock Pressure Drop
1.4
1.2
1
0.4
0.2
0.8
0.6
0
0 5 10 15 20 25 30 35 40
Heat Input to Boiler (kW)
IMPORTANT:
Ensure all gas valve connections are gas tight with a gas soundness check up to the gas control valve.
1.11 BOILER CONTROLS
Install CH controls to ensure that the boiler has no demand when there is no requirement from the system.
Heating systems with TRVs in individual rooms must include a thermostat to control the temperature in rooms without TRVs.
At least 10% of the minimum boiler heat output should be achieved using a room thermostat. A bypass circuit with an automatic bypass valve must be fitted to systems with TRVs or two-port valves on all the radiators to ensure water flow.
1.12 ELECTRICAL SUPPLY
WARNING: This appliance must be earthed
Wiring external to the appliance MUST be in accordance with the current I.E.E. (BS7671) Wiring Regulations and any local regulations which apply.
The mains supply to the boiler and system wiring centre shall be through one common fused double pole isolator and for new heating systems, and where practical replacement installations, the isolator shall be situated adjacent to the appliance.
1.13 CONDENSATE DRAIN
The condensate drain provided must be connected to the drainage point on site. All condensate drainage pipework and fittings must be made of plastic.
IMPORTANT:
The condensate drain pipework should be installed in accordance with BS6798.
The drain outlet on the boiler is sized for standard 21.5 mm overflow pipe. It is a universal fitting to allow use of different brands of pipework.
Refer to Section
2.15
Installation and Servicing
Section 1 - General
1.14 BOILER DIMENSIONS, SERVICES & CLEARANCES
The boiler connections are made on the boiler connection tails.
The following minimum clearances must be maintained for operation and servicing.
Additional space will be required for installation, depending upon site conditions.
Refer to Section
2.17
Side and Rear Flue a. Provided that the flue hole is cut accurately, e.g. with a core drill, the flue can be installed from inside the building where wall thicknesses do not exceed 600 mm.
2.5 mm 2.5 mm from case
395 mm
278 mm
Flue terminal
200 mm
98 mm
152mm
700 mm
100 mm*
Water and Gas Connections Underside View
PRV
Grommet
Cond.
Drain
43.5
43.5
32 33 21 36 61
32
43.5
CH
Flow
21 36 DHW
Outlet
61 Gas
Inlet
75
Inlet
75
75
94 CH 94
Return
94
Data
Plate
PRV
Grommet
Cond.
Drain
Measurements in mm
Front Clearance
The minimum front clearance when built in to a cupboard is
5 mm from the cupboard door but 450 mm overall clearance is still required, with the cupboard door open, to allow for servicing.
*
Bottom Clearance
Bottom clearance after installation can be reduced to 15 mm.
This must be obtained with an easily removable panel to provide the 100 mm clearance required for servicing.
For easy access to the pressure gauge a bottom clearance of 15 mm is required for a partial open door.
CH
Flow
PRV Grommet
Refer to Section
2.17
DHW
Outlet
Gas DHW
Inlet
CH
Return
CH Circuit
Drain
IMPORTANT:
Please ensure there is sufficient clearance either side and below the boiler, particularly from door hinges and the base of a cupboard, to allow the door to be opened to allow the pressure gauge to be checked.
Also ensure there is sufficient access to the system filter for draining, cleaning and dosing. For guidance please see Ideal
System Filter Installation Manual.
Installation and Servicing 11
12
Section 1 - General
1.15 SYSTEM REQUIREMENTS - CENTRAL HEATING
Table 4 Vessel Sizing a. The method of filling, refilling, topping up or flushing sealed primary hot water circuits from the mains via a temporary hose connection is only allowed if acceptable to the local water authority.
b. Antifreeze fluid, corrosion and scale inhibitor fluids suitable for use with boilers having aluminium heat exchangers may be used in the central heating system.
General
1. The installation must comply with national and local regulations.
2.
Design the system for flow temperatures up to 80 o C.
3. The system components must be suitable for an operating pressure of 3 bar and a maximum temperature of 110°C.
The following components are incorporated within the appliance: a.
Circulating pump.
b.
PRV, with a non-adjustable preset lift pressure of 3 bar.
c. Pressure gauge, covering a range of 0 to 4 bar.
d. An 8 litre expansion vessel, with an initial charge pressure of 0.75 bar.
PRV setting bar 3.0
Vessel charge pressure bar 0.5 to 0.75
System pre-charge pressure bar None 1.0
System volume
(litres)
25
50
75
100
125
150
175
190
200
250
300
For other system volumes multiply by the factor across
Expansion vessel volume (litres)
1.6 1.8
3.1 3.7
4.7 5.5
6.3 7.4
7.8 9.2
9.4 11.0
10.9 12.9
11.9 14.0
12.5 14.7
15.6 18.4
18.8 22.1
0.063 0.074
4.
Makeup Water.
One of the following provisions must be made for replacing system water loss: a.
Manually filled vessel
The vessel must:
• Have a visible water level
• Be mounted at least 150 mm above the system’s
highest point
• Connect through a non-return valve to the system
• Be at least 150 mm below the makeup vessel on the
return side of the radiators b.
System prepressurisation.
The efficiency of the expansion vessel will be reduced in a pressurised system; a larger vessel or smaller system volume may be necessary. If the vessel’s capacity is not sufficient, an additional vessel must be installed on the return to the boiler.
If the system is not pressurised, the cold water capacity must not exceed 143 litres.
Guidance on vessel sizing is given in Table 4.
5. Filling
The system may be filled by the following method:
Where the mains pressure is excessive a pressure reducing valve must be used to facilitate filling.
a.
Thoroughly flush out the whole system with cold water.
b. Fill and vent the system until the pressure gauge registers 1 bar and examine for leaks.
Refer to Section
2.17
c.
Check that a 15 mm diameter pipe is correctly located and secured (using the clip supplied)
d. Check the operation of the PRV by raising the water pressure until the valve lifts. This should occur within
0.3 bar of the preset lift pressure.
e.
Check no escape of water occurs except at the discharge point
f.
Release water from the system until the minimum system design pressure is reached;
1.0 bar if the system is to be pre-pressurised.
Water Flow Rate and Pressure Loss
Max CH Output
Water Flow Rate kW 24.2
l/min 17.3
(gal/min) (3.8)
Temperature Differential
Head available for System
With Ideal System Filter
Fitted & Valves o C 20 m.w.g. 3.4
(ft.w.g.) (11.1) m.w.g
(ft.w.g)
3.1
10.2
Installation and Servicing
Section 1 - General
1.16 SYSTEM REQUIREMENTS - DHW
Domestic Hot Water
1.
The DHW service must be in accordance with BS.5546 &
BS6700.
2.
Refer to Table 1 for minimum and maximum working pressures. In areas of low mains water pressures the domestic hot water regulator may be removed from the
DHW flow turbine cartridge. The boiler will require the flow rate to be set to obtain a temperature rise of 35 o tap furthest from the boiler.
C at the
Refer to Section
1.2
3.
The boilers are suitable for connection to most types of washing machine and dishwasher appliances.
4.
If the shower/mixer valve does not incorporate non-return valves the following must be followed: a.
The cold inlet to the boiler is fitted with an approved
anti-vacuum or syphon non-return valve.
b.
Hot and cold water supplies to the shower are of
equal pressure.
5. Hard Water Areas
Where the water hardness exceeds 200 mg/litre (200 ppm), it is recommended that a proprietary scale reducing device is fitted into the boiler cold supply within the requirements of the local water company.
IMPORTANT: Provision must be made to accommodate the expansion of DHW contained within the appliance. If the DHW inlet contains a back flow prevention device or non-return valve, e.g. a water meter, then a mini expansion vessel should be fitted between the device and the boiler in the cold inlet pipe.
Cold water, rising main and pipework in exposed areas need to be suitably lagged to prevent freezing.
Note DHW Expansion Vessel kit available from Ideal.
1.17 SYSTEM BALANCING
The boiler does not normally need a bypass but at least some radiators on the heating circuit, of load of at least 10% of the minimum boiler output, must be provided with twin lockshield valves so that this minimum heating load is always available.
Note.
Systems incorporating zone valves which could completely cut off the flow through the system must also include a bypass.
Balancing
1.
Set the programmer to ON.
2.
Close the manual or thermostatic valves on all radiators, leaving the twin lockshield valves (on the radiators referred to above) in the OPEN position.
Refer to Section
1.11
3.
Turn up the room thermostat and adjust the lockshield valve to give an uninterrupted flow through the radiator.
These valves should now be left as set.
4. Open all manual or thermostatic radiator valves and adjust the lockshield valves on the remaining radiators, to give around 20 o C temperature drop at each radiator.
5.
Adjust the room thermostat and programmer to
NORMAL settings.
Note. Systems incorporating zone valves which could completely cut off the flow through the system must also include a bypass.
1.18 WATER TREATMENT
CAUTION: Do not fill the heating system with softened water. Softened water could enhance corrosion.
Central Heating
The Logic range of boilers have an ALUMINIUM alloy heat exchanger.
IMPORTANT
The application of any other treatment to this product may render the guarantee of Ideal Heating invalid.
The Ideal System Filter will aid against the build up of iron oxide debris, however the below water treatment is also recommended by Ideal Heating.
Ideal Heating recommend Water Treatment in accordance with the Benchmark Guidance Notes on Water Treatment in
Central Heating Systems.
If water treatment is used, Ideal Heating recommend only the use of SCALEMASTER SM-1 PRO, FERNOX MBI, ADEY
MC1, SENTINEL X100 or CALMAG CM100 inhibitors and associated water treatment products, which must be used in accordance with the manufacturers’ instructions.
Installation and Servicing
1. It is most important that the correct concentration of the water treatment products is maintained in accordance with the manufacturers’ instructions.
2. If the boiler is installed in an existing system any unsuitable additives MUST be removed by thorough cleansing. BS7593:2019 details the steps necessary to clean a domestic heating system.
3. In hard water areas, treatment to prevent lime scale may be necessary - however the use of artificially softened water is NOT permitted.
4. Under no circumstances should the boiler be fired before the system has been thoroughly flushed.
For further information contact:
Fernox www.fernox.com Tel: +44 (0) 3301 007750
Sentinel Performance Solutions www.sentinelprotects.com Tel: +44 (0) 1928 704330
Scalemaster Water Treatment Products www.scalemaster.co.uk Tel: +44 (0) 1785 811636
Calmag Ltd . www.calmag Ltd.com Tel: +44 (0) 1535 210320
Adey www.adey.com Tel: +44 (0) 1242 546700
13
Section 2 - Installation
2.1 BOILER ASSEMBLY - EXPLODED VIEW
104 CH Return Valve
105 CH Flow Valve
106 DHW Inlet & Outlet
107 Filling Loop Pipe
108 Pump Head
110 Auto Air Vent
111 Diverter Valve Motor
112 Diverter Valve Body & Paddle
113 Pressure Relief Valve
114 Pipe - PRV Outlet
115 Pipe - Flow
116 Pipe - Return
117 Pipe - Expansion Vessel
118 Expansion Vessel
119 Return Group Manifold
120 Flow Group Manifold
121 Plate Heat Exchanger
124 Flow Regulator
127 Flow Sensor/Turbine
131 Water Pressure Switch
135 Pressure Gauge
203 Gas Cock
205 Gas Valve
206 Pipe - Gas Injector
211 Injector Assy
214 Venturi
215 Fan
217 Burner
218 Gasket - Burner
219 Sump Clean Out Cover
223 Flue Manifold
224 Flue Manifold Top
227 Clamp Retaining Flue Turret
228 Hose Condensate Internal
229 Condensate Trap
231 Condensate Outlet Connection
239 Condensate Drain Tube
302 PCB
306 Ignition/Detection Electrode
308 Ignitor Unit
309 Thermistor
313 Ignition Lead
324 Control Box Lid
325 Control Box Front
326 Blank Insert
401 Heat Engine
503 Wall Mounting Bracket
504 Front Panel
505 Fascia
506 Bracket - Spark Generator
507 Bracket - Expansion Vessel
Note that item numbers are linked to the spares list
504
224
227
505
503
14
326
223
135
1
2
3
0 4 bar
324
215
325
217
218
306 313
214
211
206
302
205
308
401
105
506
228
219
309
115 116
229
106
239 120
203
106
131 127
124
507
113
107
104 108
118
114
231
110 111
112
121
309
119
117
Installation and Servicing
2.2 UNPACKING
The boiler is supplied fully assembled in Pack A.
Section 2 - Installation
Unpack and check the contents
Pack A Contents
1.
Boiler
2.
Hardware Pack Box
3.
Wall Mounting Plate
4.
These Installation/Users Instructions
5.
Boiler Warranty
6.
Wall Mounting Template
7.
PRV Pipe
8.
Ideal System Filter
4
2
3
5
1 6
7
Hardware Pack
Box Contents
9. 1x HP Box Dividers - 289 x 111 x 57.5 mm
10. 1x Plug Male and Clip
11.
1x Pipe DHW Outlet
12.
1x Pipe Filling Loop
13.
1x Valve DHW Inlet
14.
2x Pipe CH Flow/Return
15.
1x Valve Filling Loop
16.
1x Valve CH G 3 /
4
x 22 mm Filling Loop
17.
1x Cap Female
18.
1x Valve CH G 3 /
4
x 22 mm
19. 1x Pipe DHW Inlet
20.
1x Nut G 1 /
2 x 16 Brass (Flat)
21.
1x Gas Cock
22.
1x PRV Clip
Accessory Bag Contents
23.
9x Washers*
24.
2x Wall Plugs
25.
2x Screws
26.
1x Flue Clamp Screw
23
9
18
22
14
21`
15 12 10
20
8
17
19
13
11
16
IMPORTANT
This clip needs to be fitted to ensure correct operation of the boiler.
Refer to Section
2.17
24 25
26
*Refer to Valve Washer Template inside box lid.
Installation and Servicing 15
Section 2 - Installation
2.3 WALL MOUNTING TEMPLATE
IMPORTANT: Ensure the wall where the boiler will be is flat.
The wall mounting template is located on the internal protective packaging. The template shows the position of the fixing and rear flue centre holes for a standard installation.
1. Secure the template into the required position. Ensure it is square by hanging a plumbline.
2. If fitting a side flue, extend the flue centreline onto the side by 155 mm on a standard wall fix or 200 mm if using a stand-off bracket.
3. Mark the following on to the wall:
a The selected group of wall mounting screw holes.
b. The centre position of the flue duct. Marking both the centre and the circumference of the flue duct.
4. Remove the template plate from the wall.
2.4 PREPARING THE WALL
WARNING: Ensure that, during the cutting operation, masonry falling outside of the building does not cause damage or personal injury.
1. Check all of the hole positions before drilling.
2. Cut the flue hole with a 127 mm core boring tool, ensure the hole is square to the wall.
3. Drill the 2 mounting holes with a 7.5 mm / 8 mm masonry drill and insert the plastic plugs provided.
4. Locate 2 No.14 x 50 mm 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 level.
X
Section through wall
Extended centre line
155
(200)
“A”
Refer to Section
2.8
Rear flue only
127 mm diameter hole
Side flue only
127 mm diameter hole
2.5 FITTING THE WALL MOUNTING PLATE
1. Screw the wall mounting plate to the wall using 2 wall plugs fitted previously with the 2 screws provided.
2. Choose one of the 2 sets of slots in left and right bank.
Ensure that at least one of the screws is fitted into a top slot and the mounting bracket is level.
Example of fixing
2.6 MOUNTING THE BOILER
1. Lift the boiler onto the wall mounting plate and locate it over the 2 tabs.
16
esp9496
Installation and Servicing
Section 2 - Flue Installation
2.7 FLUES AND LOCATIONS
This installation & servicing manual must be read in conjunction with flue kit and fitting guide.
Telescopic horizontal flue
0.5 or 0.7 m
Horizontal flue
0.6 or 0.8 m
Flue extension
0.5 m, 1 m or 2 m
Flue deflector
Vertical flue terminal and connector
Ideal part no.
0.5 m 208169
0.7 m 208174
Flue elbow 90°
Ideal part no.
0.6 m 208171
0.8 m 217442
Flue elbow 45°
Ideal part no.
0.5 m 211037
1 m 203129
2 m 211038
Weather collar pitched roof
Ideal part no.
208176
Weather collar flat roof
Ideal part no.
211039
Ideal part no.
203130
Balcony flue kit
Ideal part no.
203131
Ideal part no.
152258
Ideal part no.
152259
Soffit kit
Raised horizontal flue kit
Ideal part no. 208177
WARNING:
• It is critical that products of combustion cannot re-enter the building
• The flue terminal must always have a free passage of air.
CAUTION:
• White sections of the flue must not be visible outside .
• Install a flue terminal guard where the flue terminal is less than 2 metres above a platform where persons can walk or come into contact with the terminal.
• Water is the only permitted lubricant for flue assembly.
Ideal part no. 211302 Ideal part no. 208290
Rubber
Terminal
Wall Seal
Terminal
MUST be fitted as shown
Installation and Servicing 17
Section 2 - Flue Installation
2.8 FLUES AND LOCATIONS - CONTINUED
L
B
1 m
2 m
3 m
4 m
18
B = Top Clearance
Top Clearance is measure from the top of the turret to the top of the hole where the flue terminates.
L = Effective flue length.
The effective length of the flue is measured from the edge of the turret to the flue terminal lip.
IMPORTANT INFORMATION
Install the flue in accordance to BS 5440:1 2008
Position the terminal, so the products of combustion do not cause a nuisance.
The terminal outlet duct must not be closer than 25 mm to combustible material.
The flue is secured in the wall using either sand and cement or heatproof silicone.
The flue must be supported by a bracket every metre of flue length and at every change of direction. Concealed flues must have inspection hatches no more than 1.5 metres from joints.
Where possible inspection hatches should be located at change of directions. Where this is not possible then bends must be viewable from both sides.
Inspection hatches must be at least 300 mm 2 .
Horizontal
24 kW
Maximum Effective Flue Length
9.0 metres
30 kW
35 kW
Vertical
24/30/35 kW equivalence. The following table is an example.
Part
45 o elbow
90 o elbow
8.0 metres
6.0 metres
7.5 metres
Elbows increase resistance and have an effective flue length x
2
2
Resistance
1.2 metres
2.0 metres
Effective flue length 3.2 metres
Flue systems that require extension kits must be installed with a 1.5° decline from the flue terminal back to the boiler.
A 1.5° decline can be achieved by designing the flue with a
26 mm rise per meter length of flue.
Table 5 - Flue Terminal Position
Flue Terminal Positions Min. Spacing*
1.
Directly below, above or alongside an opening.
2. Below guttering, drain pipes or soil pipes.
300 mm
75 mm
25 mm*
3.
Below eaves. 200 mm
25 mm*
4. Below balconies or a car port roof. 200 mm
25 mm*
5.
From vertical drain pipes or soil pipes.
6.
From an internal or external corner or a boundary alongside the terminal.
7.
Above adjacent ground, roof or balcony level.
8.
From a surface or a boundary facing the terminal.
9.
From a terminal facing a terminal.
10.
From an opening in a car port into dwelling.
150 mm
25 mm*
300 mm
25 mm*
300 mm
600 mm
1200 mm
1200 mm
11.
12.
13.
14.
15.
16.
Vertically from a terminal on the same wall.
Horizontally from a terminal wall.
Horizontally from an adjacent window
Facing an opening into an adjacent building
At an angle to the boundary
Parallel to a boundary
17. Below ground level – open light well
90°
45°
1500 mm
300 mm
600 mm
2000 mm
300 mm
600 mm
300 mm a) Below ground b) Above floor level c) From side
<1,000 mm
300 mm
300 mm d) From facing surface 600 mm
*Only one reduction down to 25mm is allowed per installation.
Installation and Servicing
Section 2 - Flue Installation
2.9 HORIZONTAL FLUE POSITIONS
8 Facing the boundary
1
3
2
4
5
7
3 2
3
Boundary
8
16
Parallel to the boundary
1
2
16 6
Boundary
300
1
4
1
1
10
5
15
3
600
7
300 c.
a. < 1000
300
600 d.
300 b.
17
15 At an angle to the boundary
1
600
2
13
6
6
All measurements : mm
11
12
9
3
14 Opening in adjacent building
2
1
14
Refer to Table 5
2.10 VERTICAL FLUE POSITIONS
Height Difference ‘A’
Less than 300
Greater than 300
B = 300
B = 1500
690
Fixed
Separation
Distance
‘B’
300
2000
600 600
600
Boundary
2000
600
200
300
Boundary
All measurements : mm
Refer to Table 5
Installation and Servicing 19
20
30
Section 2 - Flue Installation
2.11 FLUE SYSTEM DIMENSIONS
Flue Design
IMPORTANT:
1. Flue lengths may vary, always measure flue lengths before cutting.
2. Effective flue length and actual flue length are different measurements.
3. Effective flue length is made up of the flue length equivalence and the flue sections between the turret, elbows and terminal.
4. Actual flue length is the amount of flue needed to achieve the effective flue length, this includes insertions.
2.12 FITTING THE TURRET
1. Ensure the condensate trap in filled with water
2. Ensure the rubber seal is not damaged and fitted correctly on the appliance manifold.
3. Firmly hold the flue and push the turret on until it has travelled 30 mm ensuring the flue has not rotated or moved forward.
4. Push the turret into the manifold ensuring the upper plastic lip is flush with the top of the manifold.
5. Fully engage the clamp location section into the manifold location hole and rotate down onto the flange.
6. Use the securing screws to secure the clamp to the appliance.
7. Ensure all sample points are accessible and all sample plugs and caps are fitted.
30
Turret insertion (mm) Elbow insertion (mm)
D
Flue Outlet
A - Duct Assembly
B - Flue Turret
C - Turret Clamp
D - Seal
Flue Outlet
B
A
C
Retaining screw
Sample points Clamp Lugs
Part
1 m flue length
1 m flue length
0.6 m flue terminal
Total
Actual
Length
1 m
1 m
0.6 m
2.6 m
Insertion Effective
Length
30 mm 970 mm
30 mm
30 mm
90 mm
970 mm
570 mm
2510 mm
100mm
Edge of turret to outside face of wall plus
44mm = flue length
A
Installation and Servicing
Flue length measured from outer terminal lip to end of outer flue
10 mm A + 44 mm
10 mm
Mark Cut Length = “A” + 44 mm from terminal lip
A + 44 mm
10 mm
Adjust to Length =
“A” + 44 mm from terminal lip
Drill Hole
Mark 2 Flush with the inner wall seal
Mark 1 Flush with inter wall
Adhere sealing tape
125 mm Cored drilled hole
Section 2 - Flue Installation
2.13 CUTTING THE FLUE
“A” + 44 mm from terminal lip
CUTTING HORIZONTAL FLUE TERMINAL
(non-telescopic)
1. Measure the required cut flue length (A + 44 mm)
2. Measure from the outer terminal lip to the end of outer tube. Mark the required cut length (A + 44 mm) around the circumference of the outer tube and cut following the mark to ensure it is cut square.
10 mm to end of outer flue
A + 44 mm
3. Mark and cut the inner tube 10 mm longer than the outer tube ensure the cut is square.
+14 mm
+14 mm
Mark 2
Wall Thickness
Mark 1
4. Remove all burrs on the inner and outer tube and place a light chamfer on the inner tube to aid with assembly.
10 mm
Mark Cut Length = “A” + 44 mm from terminal lip
A + 44 mm
Mark 1 Flush with inter wall
125 mm Cored drilled hole
7. Place the terminal end of the flue into the 127 mm core drilled centrally and slowly apply slight pressure and move the flue up or down or side to side. This will cause the external wall seal to fold in and allow the flue to pass through the wall.
Correctly sealed wall seal
8. When the inner wall seal is flush against the wall pull back the flue until Mark 1 is flush with the inner wall surface.
SETTING TELESCOPIC FLUE
9. Hold the flue steady and push the inner wall seal towards the wall until Mark 2 is just visible.
Flue length measured from outer terminal lip to end of outer flue
FITTING THE FLUE THROUGH THE WALL
(External Installation)
A + 44 mm
1. Follow steps 1 - 5 from above.
2. Pull flue apart until the desired length is achieved ensuring the stop mark is not visible.
3. Ensure both flue seams are at the top and the flue outlet terminal is uppermost.
4. Drill a 3.5 mm hole through the small and large outer tube using the pilot hole on the large outer tube.
5. Secure large and small outer tube using the screws provided.
Mark 2 Mark 1
6. Seal the joint on the out tube with the tape provided.
7. Fit the internal and external wall seals.
Correctly sealed wall seal
10 mm
Adjust to Length =
“A” + 44 mm from terminal lip
2. Push the flue through the 127 mm core drilled hole from the outside
3. Return inside the property and fit the inner wall seal to the flue.
4. Pull the flue internally until Mark 1 is flush with the inner wall surface.
5. Holding the flue in this position push the inner wall seal towards the wall until Mark 2 is just visible.
If Mark 1 is not flush with the inner wall surface and can be seen prior to the wall surface, then the external wall seal will have been dislodged and will require to be re-fitted. If this situation occurs, then please start the process from the beginning.
On completion the flue will be correctly installed as below.
+14 mm Wall Thickness
Drill Hole Adhere sealing tape
Mark 2 Flush with the inner wall seal
Flue length measured from outer terminal lip to end of outer flue
10 mm A + 44 mm
10 mm
Mark Cut Length = “A” + 44 mm from terminal lip
A + 44 mm
+14 mm
+14 mm
Mark 2
Wall Thickness
Mark 1
FITTING THE FLUE THROUGH THE WALL
(Internal Installation)
1. Measure the thickness of the wall.
2. To this measurement add 14 mm.
3. Make a mark on the flue shown as mark 1 (top right).
4. Make another mark on the flue a further 14 mm in shown as Mark 2 above right.
5. Fit the external wall seal (black) to the flue terminal ensuring it is fitted on the terminal outer lip seal.
Correctly sealed wall seal
6. Fit the inner wall seal approximately 65 mm prior to Mark 2.
Mark 2
Mark 1 Flush with inter wall
Mark 1
125 mm Cored drilled hole
Correctly sealed wall seal
IMPORTANT: Ensure no White flue is visible between the flue terminal and the wall.
Installation and Servicing 21
A video showing how to correctly measure and fit a flue can be found by scanning the QR Code.
Section 2 - Flue Installation
SCAN for Flue Fitting
Video’s
For the full range of
FLUE AND ACCESSORIES please visit idealheating.com/flues
SCAN for Flues and
Accessories Guide
22
2.14 ASSEMBLING THE VERTICAL FLUE
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.
Ensure the cut pipe ends are free from any burrs.
1. Position the roof flashing plate (supplied separately) over the hole cut in the roof and insert flue terminal from the roof end.
2. Fit the vertical connector (supplied in kit) in accordance with the instructions provided.
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 lugs into the flue manifold and secure to the flue manifold with the M5 retaining screw.
1
Flue Terminal
MAX LENGTH:
7.5m
BOILER
Note.
Check the position of the inner flue duct relative to the outer duct on the assembled extension duct(s) and ensure the terminal flue duct is cut longer than the air duct to ensure engagement in the final flue duct seal.
7. Finally ensure the roof flashing plate is correctly sealed to the roof.
weather collar flat roof weather collar pitched roof
'X'
6
5
Extension
Duct
5. Push extension duct (if required (supplied separately)) into vertical connector.
Note. Ensure turret sample points are servicable and all caps and plugs are fitted. Fill the condense trap/siphon with water.
6. If the last extension duct requires cutting, measure ‘X’, the distance between the duct (outer) and the terminal, and add 100 mm to this dimension. This gives the length of the last extension duct.
4
Vertical connector
2
Installation and Servicing
2.15 CONDENSATE DRAIN
Section 2 - Installation
38
Condensate
Drain
129.5
44
This appliance is fitted with a siphonic 75 mm condensate trap system that requires filling before operating the appliance for the 1st time or after maintenance.
All condensate pipework should conform to the following: a. Where a new or replacement boiler is being installed, access to an internal ‘gravity discharge’ termination 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 minimum of 19 mm ID
(typically 22 mm OD).
d. External plastic pipe must be a minimum of 30 mm
ID (typically 32 mm OD) before it passes through the sleeved wall.
e. All horizontal pipe runs must fall a minimum of 52 mm per metre away from the Boiler.
f. External & unheated pipework should be kept to a minimum and insulated with Class “O” waterproof pipe insulation through freezing or otherwise.
g. All installations must be carried out in accordance to the relevant connection methods as shown in the
“Condensate installation diagrams” & BS6798.
h. Pipework must be installed so that it does not allow spillage into the dwelling in the event of a blockage
(through freezing) i. All internal burrs should be removed from the pipe work and any fittings.
In order to minimise the risk of freezing, terminate the condensate drainage pipe using one of the following methods:
Internal Drain Connections
Route the condensate pipe by gravity to an internal, foul water discharge point.
Refer to Fig.
1 & 2
Condensate Pump
When it is not practical to terminate the condensate pipe to an internal foul water discharge point using gravity, use a suitable pump recommended by the boiler or pump manufacturer.
Refer to Fig.
3
External Drain Connections
The use of an externally run condensate drainage pipe should only be considered after exhausting all internal termination options as described previously. An external system must terminate at a suitable foul water discharge point or purpose designed soakaway. If an external system is chosen then the following measures must be adopted:
The external pipe run should be kept to a minimum using the most direct and “most vertical” route possible to the discharge point, with no horizontal sections in which condensate might collect.
- For connections to an external soil/vent stack.Insulation measures as described should be used.
Refer to Fig.
4
- When a rainwater downpipe is used, an air break must be installed between the condensate drainage pipe and the downpipe to avoid reverse flow of rainwater into the boiler should the downpipe become flooded or frozen.
Refer to Fig.
5
- Where the condensate drain pipe terminates in a purpose designed soakaway (see BS 6798) any above ground condensate drain pipe sections should be run and insulated as described above.
Refer to Fig.
6
- Where the condensate drain pipe terminates over an open foul drain or gully, the pipe should terminate below the grating level, but above water level, to minimise
“wind chill” at the open end. The use of a drain cover (as used to prevent blockage by leaves) may offer further prevention from wind chill.
Unheated Internal Areas
Internal condensate drain pipes run in unheated areas, e.g. lofts basements and garages, should be treated as external pipe.
Ensure the customer is aware of the effects created by a frozen condensate and is shown where this information can be found in the user manual.
Note. Please check current HHIC condensate discharge guidance available via the Gas Safe Registered Technical
Bulletins List. Not irish continued . . . . .
Installation and Servicing 23
Section 2 - Installation
2.16 CONDENSATE DRAIN - CONT.
Figure 1 - Connection of Condensate Drainage Pipe to
Internal Soil & Vent Stack
Boiler with 75 mm sealed condensate trap
Min Ø 19 mm
Internal pipe
Figure 2 - Connection of a Condensate Drainage Pipe
Downstream of a Sink, Basin, Bath or Shower Water Trap to
Internal Soil Vent Stack
Boiler with 75 mm sealed condensate trap
Min Ø 19 mm
Internal pipe
Minimum connection height up to 3 storeys
Sink/basin/ bath or shower
Figure 3 - Connection of a Condensate Pump Typical
Method (see manufacturer’s detailed instructions)
Visible air break
Boiler with 75 mm sealed condensate trap
Min Ø 19 mm
Internal pipe
Condensate pump
(Install in accordance with manufacturers instructions)
Figure 4 - Connection of Condensate Drainage Pipe to
External Soil & Vent Stack
Boiler with 75 mm sealed condensate trap
Min Ø 19 mm
Internal pipe
Water/weather proof insulation
Min Ø 30 mm
Internal pipe
Minimum connection height up to 3 storeys
24
Figure 5 - Connection of a Condensate Drainage Pipe to an
External Rainwater Downpipe (only combined foul/rainwater drain)
Boiler with 75 mm sealed condensate trap
Min Ø 19 mm
Internal pipe
Min Ø 30 mm
Internal pipe
Terminated and cut at 45º
43 mm 90º male/ female bend
Water/ weather proof insulation Combined foul/ rain water drain
External air break
Air gap
68 mm Ø PVCU
Strap on fitting
Figure 6 - Connection of a Condensate Drainage Pipe to an
External Purpose Made Soakaway.
Boiler with 75 mm sealed condensate trap
Min Ø 19 mm
Internal pipe
Min Ø 30 mm
Internal pipe
Water/Weather proof insulation
Max 3 m external pipework
Terminated and cut at 45º
Limestone chippings
≥ 500
2 rows of three Ø12 mm holes
25 mm centres, 50 mm from the bottom of the tube, facing away from the house
Installation and Servicing
Section 2 - Installation
2.17 CONNECTIONS & FILLING
CAUTION: Heating the isolation valves may damage the fibre seals
Fit each union with the fibre seals provided.
WATER CONNECTIONS CH
1. Connect the CH flow service valve (black handle) and copper tail provided in the hardware pack to the threaded boss connection provided at the lower rear of the boiler.
2. Connect the CH return valve (black handle) and copper tail.
IMPORTANT Install the Ideal system filter according to system filter installation and maintenance guide. Failure to install the system filter correctly will affect boiler warranty.
WATER CONNECTIONS DHW
1. Fit the DHW inlet service valve (blue handle) and copper tail to the threaded boss connection ensuring the seal provided is correctly located.
2. Fit the DHW outlet pipe tail to DHW outlet connection, ensuring the seal provided is correctly located.
3. Fit the filling loop provided between the DHW inlet valve and the CH return valve.
GAS CONNECTION
CAUTION: The gas service cock is sealed with a non-metallic blue fibre washer, which must not be overheated when making capillary connections.
PRV DRAIN
The PRV connection, located at the bottom left-hand side of the boiler, comprises an open ended grommet.
IMPORTANT
The grommet is designed for 15 mm Ø copper pipe.
If possible, preassemble and solder the pipework before
Installing.
If this is not possible the soldering must be more than
100 mm away from the grommet. Make sure the grommet is not damaged by the heat.
Install the condensate pipe as follows:
1. Make sure that the 15 mm Ø copper pipe is cut perpendicular to the pipe.
2. Make sure that the pipe is not damaged, and clean and free from burs.
3. Using pliers put the clip over the grommet. Continue to hold the clip open.
SCAN for video
Note.
Do not release the clip until step 5 (see below).
4. Push the copper pipe into the grommet (minimum of
15 mm). Make sure that the pipe is parallel with the grommet.
5. Below the stop mark on the grommet open the pliers to release the clip.
6. Make sure that the clip and pipe are attached correctly.
7. Make sure that the PRV discharge pipe is correctly attached. Make sure that the angle of the pipe run is sufficient to remove discharged water.
For details of the position of the gas connection:
Refer to Section
1.14
Refer to Gas Supply
1.9
WARNING:
Make sure that the water or steam (from the boiler) is discharged safely. Hot water or steam is dangerous and can cause serious injury, and damage to electrical systems.
Clip
Stop point
15 mm
CH Flow
DHW
Outlet
Gas
Supply
DHW
Inlet
CH
Return
A purpose made PRV drain pipe is provided with the boiler to allow safe discharge through a wall to the outside of the building. This is particularly relevant to ‘high rise’ installations but can be used for all installations.
Filling
Loop
The domestic hot water flow rate is automatically regulated to a maximum: kW
24
30
35
L/m
9.9
12.4
14.5
gpm
2.2
2.8
3.2
PRV
Drain Connection
15 mm Fitting
(not supplied) PRV
Drain Pipe (supplied)
Installation and Servicing 25
26
Section 2 - Installation
2.18 CONNECTIONS & FILLING CONT.
FILLING
WARNING: Protect electrical connections from water
1. Connect the filling loop, ensuring the washers are in place.
2. Loosen the auto air vent dust cap.
Refer to Section
3.24
3. Check the following isolation handles on water connections are in the horizontal filling position (blue handle on DHW inlet and black handle on CH return C ).
4. Position the CH flow isolation valve handle in the vertical position to enable filling.
5. Slowly turn the filling loop handle (green B ) to the horizontal open position until the pressure gauge reads between 1 to 1.5 bar.
6. Turn the filling loop handle (green closed (vertical) position.
B ) back to the
7. Turn the CH Return handle (black C ) and the DHW
Inlet handle (blue ) to the open (vertical) position.
8. Disconnect the filling loop from the DHW Inlet valve and fit the grey cap to the open end.
9. Fit the Plug to the free end of the filling loop.
Top Up
1. Connect the filling loop, ensuring the washers are in place.
2. Loosen the auto air vent dust cap.
Refer to Section
3.24
3. Turn the DHW Inlet handle (blue ) to the horizontal position.
4. Slowly turn the filling loop handle (green B ) to the horizontal open position until the pressure gauge reads between 1 to 1.5 bar.
5. Turn the handle (green B ) on the filling loop back to the closed (vertical) position.
6. Turn the DHW Inlet handle (blue ) to the open
(vertical) position.
7. Disconnect the filling loop from the DHW Inlet valve and fit the grey cap to the open end.
8. Fit the Plug to the free end of the filling loop.
SCAN for video
Filling
Loop
Filling System Positions shown
Plug
Cap
B
A
DHW Inlet
(Blue)
Filling
Loop
Top Up Pressure Positions shown
Plug
Cap
B
A DHW Inlet
(Blue)
Filling Loop
(Green)
C
CH Return
(Black)
Filling Loop
(Green)
C
CH Return
(Black)
Installation and Servicing
Section 2 - Installation
2.19 ELECTRICAL CONNECTIONS
WARNING: This appliance must be earthed
A mains supply of 230 V ~ 50 Hz is required.
3 A fuse required. All external controls and wiring must be suitable for mains voltage.
Wiring external to the boiler must follow current I.E.E
(BS7671) wiring regulations and local regulations.
Wiring should be 3 core PVC insulated cable, not less than
0.75 mm 2 (24 x 0.2 mm), and to BS6500 Table 16.
Connection must be made in a way that allows complete isolation of the electrical supply. The means of isolation must be accessible to the user after installation.
2.20 INSTALLER WIRING
WARNING: Ensure the supply cord is not damaged
The boiler must be connected to a permanent live power supply.
Accessing the installer wiring
1. Isolate the mains supply from the boiler.
2. Remove the front panel.
Refer to Section
3.2
3. Swing down the control box into the service position, unclip and swing back the installer wiring cover and latch into the retaining clips.
4. Carefully pierce the grommet, release the cable clamp via the screws and pull wiring through.
5. Connect external wiring to the appropriate connections securely and then refit the cable clamp.
Once any wiring is completed, to secure the boiler, reverse the order above.
The link wire on the 230 V installer room stat/timer connection gives a demand in conjunction with the timer option plug inside the timer option cover. This is located on the front of the control box.
Installer Connections (LHS) Installer Connections (RHS)
Installation and Servicing
FROST STAT
OPTIONAL
ROOM
STAT/
MAINS IN
TIMER L N
IN
SL2
L
IN
SL1
L
MAINS IN
L N
FROST STAT
OPTIONAL
STAT/ MAINS IN
TIMER L N
IN
SL2
L
IN
SL1
L
MAINS IN
L N
OPEN THERM./
WEATHER COMP.
B
27
28
Section 2 - Installation
2.21 EXTERNAL WIRING
External Controls – 230 V 50 Hz
Wiring a 230 V Programmable Room Stat (Diagrams A & C) or 230 V Timer & Room Stat (Diagram B).
1. Remove the link wire from the room stat/timer connection.
2. Connect the external cable from the room stat/timer across this connection. If a general live connection is used for the room stat or timer then connect this to the fused spur, on the load side (see Diagram C).
3. If the room thermostat has compensation and requires a neutral connection, make this connection to the fused spur, on the load side.
Frost Protection
If parts of the pipework run outside the house or if the boiler will be left off for more than a day or so then a frost thermostat should be wired into the system.
This is usually done at the programmer, in which case the programmer selector switches are set to OFF and all the other controls MUST be left in the running position.
The frost thermostat should be sited in a cold place, but where it can sense heat from the system.
Wiring a system frost thermostat, see diagrams E. Wire the frost thermostat across the two connections as shown.
If the boiler is installed in a garage it may be necessary to fit a pipe thermostat, preferably on the return pipework.
Optional External Controls – Extra Low Voltage
Wiring OpenTherm Programmable Room Stat (Diagram D).
1. Remove the timer link plug inside the timer option cover, located on the front of the control box.
2. Unclip the timer link socket from the aperture on the rear of the control box, locate the plug on the same harness branch and connect these together.
3. Using the rubber bung located adjacent to these connections, insert it into the open aperture.
4. Connect the external cable from the OpenTherm
Programmable Room Stat on the RHS of the boiler installer connections, labelled OpenTherm.
Diagram A: 230 V
Programmable Room Stat
Programmable
Room Stat
Diagram B: 230 V
Timer & Room Stat
Room
Stat Timer
Diagram C: 230 V
Programmable Room Stat
Use of Live from Isolator
Room
Stat
Mains In
Diagram D: OpenTherm
Programmable Room Stat
OpenTherm
Programmable
Room Stat
Diagram E: 230 V
Op � onal Frost Stat
Op � onal
Frost Stat
Room
Stat/
Timer
L N Room
Stat/
Timer
L N Room
Stat/
Timer
L N Open
Therm
Outside
Sensor
Frost
Stat
Installation and Servicing
2.22 WIRING DIAGRAM
Section 2 - Installation
Flame Sensor r o w v r r er re h r r
2 3 4 h
1 2 3
3 2 1
1 2 3
Installation and Servicing 29
Section 2 - Installation
2.23 REPLACING PRE-FITTED MAINS CABLE
If it is necessary to use an alternative mains cable to the one pre-fitted then use the following guide.
Replacement wiring should comply with notes and be carried out by a qualified person.
Refer to Section
2.21
1. Isolate the mains supply to the boiler.
2. Remove the front panel.
3. Swing the control box down into the service position, unclip and swing back the installer wiring cover to latch into the retaining clips.
4. Unscrew the L N & E connections & remove wires from connector.
5. Remove the mains cable by pulling back through the grommet.
6. Route the replacement through the grommet and re-fit.
7. Close the installer wiring cover ensuring that it is located correctly and that the cable is retained into the strain relief as shown.
Strain
Relief
5
8. Swing the control box back up into the operating position and re-fit the front panel ensuring a good seal is made.
The earth connection should be longer than the current carrying connections. If the cord anchorage slips, the current carrying wires become taut before the earth.
30
2.24 COMMISSIONING AND TESTING
A. Electrical Installation
WARNING: Electrical safety checks should be carried out by a qualified person.
Complete preliminary electrical system checks.
General
The combustion for this appliance has been checked, adjusted and preset at the factory for operation on the gas type defined on the appliance data plate.
Do not adjust the air / gas ratio valve.
Check the following:
1. The boiler has been installed in accordance with these instructions.
2. The integrity of the flue system and the flue seals, as described in the Flue Installation Section.
Proceed to put the boiler into operation as follows:
1. Check the operational gas inlet pressure.
2. Set up the boiler to operate at maximum rate by opening hot tap to maximum flow.
3. With the boiler operating in the maximum rate condition, check that the operational gas pressure at the inlet gas pressure test point complies with the requirements.
4. Ensure that this inlet pressure can be obtained with all other gas appliances in the property working.
Refer to Gas Supply page 10
B. Gas Installation
WARNING: Open windows, doors and extinguish flames before starting the next steps. Do not smoke.
1. The whole of the gas installation, including the meter, should be inspected and tested for tightness and purged in accordance with the recommendations of BS.6891.
2. Purge air from the gas installation by the approved methods only.
Gas
Supply
Gas Pressure
Test Point
IMPORTANT: A condition of the manufacturer’s warranty is that Benchmark commissioning process is
completed. The flow chart is provided on
page 67.
Installation and Servicing
Section 2 - Installation
2.25 INITIAL LIGHTING
Legend
A. Domestic Hot Water
Temperature Knob
B. Central Heating
Temperature Knob
C. Hot Keys
D. Boiler Status Display
E. Burner On indicator
G. CH Flow Isolating
Valve
H. Gas Inlet Pressure
Test Point
I. Gas Service Cock
J. DHW Inlet Valve
K. CH Return Isolating
Valve
L. DHW Outlet
M. Filling Loop Valve
N. Pressure Gauge
1 bar
Min
A
2 bar
2
1
0 bar
4
3
E D
On at 60°C
Target 60°C
Ready
Radiator Target 60°C
Room Thermostat or
Timer Off
On
Preheat Menu Mode
C
CAUTION: Do not operate the appliance before it has been fully vented of air. If it is necessary to operate the pump, do so with the gas service cock turned off.
The boiler incorporates a fan overrun cycle which must not be interrupted by isolation of electricity supply.
1. Check that the system has been filled and that the boiler is not airlocked.
2. Ensure the automatic air vent cap is open.
3. Refit the boiler front panel.
Refer to Section
3.2
4. Check that the drain cock is closed and that the CH and
DHW isolating valves (G,K & J) are OPEN.
5. Press the Mode button until a cross is shown going through both tap and radiator icons (boiler off).
6. Switch the electrical supply OFF.
7. Check that the gas service cock (I) is OPEN.
8. Slacken the screw in the inlet pressure test point (H) and connect a gas pressure gauge via a flexible tube.
9. Switch the electricity supply ON and check all external controls are calling for heat.
CH Flow
DHW
Outlet
Gas
Supply
J
DHW
Inlet
CH
Return
G L
I
H
Max
Filling
Loop
M
K
B
Pressure Gauge
N
1
2
3
0 bar
4
On at 60°C
Target 60°C Radiator
Target 60°C
Preheat
On
Menu
Mode
1
2
3
0 bar
4
CENTRAL HEATING
10. Press the Mode Button (C) until there is no longer a cross through the Radiator icon. Turn the Central Heating
Temperature Knob clockwise until a target of 80°C is shown. The boiler control will now go through its ignition sequence until the burner is established.
11. If the boiler does not light then after 5 attempts the boiler will lock out and display “Ignition Lockout”. Press the
Restart Button. The boiler will repeat its ignition sequence.
If Restart occurs 5 times within 15 minutes then “Too Many
Restarts” will be shown.
When the burner is established the flame symbol (E) will be shown on the display and the current flow temperature will be shown in the large digits underneath the radiator symbol.
DOMESTIC HOT WATER
12. With the boiler firing, rotate the DHW Temp Knob (A) clockwise until a target of 65°C is shown and fully open a DHW tap. The boiler should continue to run and the current DHW temperature will be shown in the large digits underneath the tap symbol.
13. Ensure that with the boiler operating, the dynamic gas pressure is able to obtain maximum output.
Refer to
Table 2
IMPORTANT The gas input to the burner is regulated by the gas valve according to the air flow produced by the fan. It is NOT user-adjustable. Any interference to sealed settings on the gas valve will adversely affect operation and render our warranty void.
Refer to Gas Supply page 10
14. Turn off the DHW tap.
15. Remove gas pressure gauge, tighten inlet pressure test point and check for gas tightness.
Installation and Servicing 31
Section 2 - Installation
2.26 USER INTERFACE COMMISSIONING
When the boiler is powered up for the first time, you will have the options to set the contact details for boiler servicing and to vent the system.
Vent the system?
Set your contact details for boiler service?
(defaults to Ideal Heating contact information otherwise)
No Yes No Yes
2.27 CHANGING BOILER OPERATING MODE
The boiler mode is displayed by default, to change the mode, simply press mode and select the desired mode.
Off
To Switch On
Press Mode Button & then On
Off
To Switch On
Press Mode Button & then On
Off
Mode
Summer
Mode
Winter
Mode
Off On On
Off Off On
Menu Mode
32
2.28 PREHEAT FUNCTION
Preheating will occur when the flow Temperature drops
15°C below the DHW target.
It will run until the flow temperature reaches 5°C below the
DHW target or until 3 minutes has passed.
The preheat function will only run for a maximum of once in 30 minutes.
2.29 INTELLIGENT PREHEAT FUNCTION
If Preheat is switched to Timed then preheating will only occur when required, rather than all the time. The boiler learns the usage patten for DHW over a week and then times the DHW preheat to only operate during the usage periods from the previous week.
This improves the speed of response for DHW whilst also reducing the use of gas.
Ready
Target 60°C
Ready
Radiator Target 60°C
Room Thermostat or
Timer Off
On
Preheat Menu
Press
Mode
Ready
Target 60°C
Ready
Radiator Target 60°C
Room Thermostat or
Timer Off
Timed
Preheat Menu
Press
Mode
Installation and Servicing
Section 2 - Installation
2.30 MENU OPERATION
The menu option contains a list of attributes that show the operating state of the boiler. The installer should scroll down the menu and press enter to select the desired option.
Menu
Exit
Service Contact Name
Service Phone Number
Change Service Time
Down Enter
Press
Note. For Diverter Valve Mid Position, press down until mid position highlighted.
2.31 SETTING MAXIMUM AND MINIMUM RATES
Maximum DHW and Minimum Rate can be accessed through the menu option.
Maximum DHW Rate
Target Fan Speed: 6800rpm
Actual Fan Speed: 6800rpm
Time remaining: 10 mins
Exit
Press
The boiler will run at Maximum DHW Rate for
10mins as long as there is sufficient cooling load
Minimum Rate
Target Fan Speed: 1400rpm
Actual Fan Speed: 1400rpm
Time remaining: 10 mins
Exit
Press
The boiler will run at Minimum Rate for 10mins
If the return temperature is under 40°C then the fan will run for 30s at maximum rate before ramping down over 60s to minimum rate.
If the return temperature is above 40°C then the fan will ramp down over 60s to minimum rate.
Installation and Servicing 33
34
On at 65°C
Boiler Target 65°C
Ready
Radiator Target
60°C
Room Thermostat or
Timer Off
Section 2 - Installation
2.32 GENERAL CHECKS
Make the following checks for correct operation in:
1.
Fully open all DHW taps in turn and ensure that water flows freely from them.
The display should show:
Ready
Target 60°C
Ready
Radiator Target
60°C
Room Thermostat or
Timer Off
Off
Preheat Menu Mode
5. Check the correct operation of the timer (if fitted) and all other system controls. Operate each control separately and check that the main burner responds.
Menu Mode
2. Close all taps except the furthest one from the boiler and check that the boiler is firing at maximum rate. This is factory set to give a DHW temperature rise of approximately
35 o C at the flow rate stated on page 10 under “operation”.
3. Reduce the DHW draw-off rate to about 3 l/min (0.7 gpm) and check that the boiler modulates to deliver DHW at approximately
65 o C.
4. Close the DHW tap and check that the main burner extinguishes. The pump should overrun for 60 seconds.
When the pump stops the display should show:
Ready
Target 60°C
Ready
To Switch On
Press Mode Button & then On
On
Preheat Menu Mode
Note. On systems in excess of 2 bar inlet pressure a water pressure governor may be required to prevent water noise.
CH & DHW MODES
1. Ensure that the CH external controls are calling for heat.
2. Fully open a DHW tap and check that hot water is delivered.
The display should show:
On at 65°C
Target 65°C
Ready
Radiator Target 60°C
Hot Water Priority
WATER CIRCULATION SYSTEM
1. With the system cold, check that the initial pressure is correct to the system design requirements.
For pre-pressurised systems, this should be 1.0 bar.
2. With the system hot, examine all water connections for soundness. The system pressure will increase with temperature rise but should not exceed 2.5 bar.
3. With the system still hot, turn off the gas, water and electricity supplies to the boiler and drain down to complete the flushing process.
Note.
A flushing solution should be used during the flushing procedure. Flushing solutions: Fernox Superfloc, Sentinel
X300 (new systems) or X400 (existing systems).
Refer to Section
1.18
4. Refill and vent the system, add inhibitor, clear all air locks and again check for water soundness.
5.
Reset the system initial pressure to the design requirement.
6.
Balance the system.
Refer to Section
1.17
7. Check the condensate drain for leaks and check that it is discharging correctly.
8.
Finally, set the controls to the User’s requirements.
The pump will operate briefly as a self-check once every 24 hours in the absence of any system demand.
Off
Preheat Menu Mode
Gas Rate
1. Check the boiler gas rate when the boiler is at full DHW output.
2. Check at the gas meter, with no other appliance in use.
Refer to Tables 2 & 3 for gas rates.
3. Close the DHW tap.
4. Set the central heating external controls to OFF. The burner should go off and the pump continue to run for two minutes.
The display should show:
WATER TEMPERATURES
Temperatures can be selected using the CH and DHW thermostats.
Temperature Knob
Setting
Max
Min
CH Flow Temp DHW Outlet o C
80
30 o C
65
40
Due to system variations and seasonal temperature fluctuations DHW flow rates/temperature rise will vary, requiring adjustment at the draw off tap : the lower the rate the higher the temperature, and vice versa.
Installation and Servicing
2.33 RESTART PROCEDURE
Section 2 - Installation
To restart the boiler, press the Restart button.
Ignition Lockout
1 Check other gas appliances work.
2 Restart boiler.
3 If fault persists, contact installer.
Ignition Lockout
1 Check other gas appliances work.
2 Restart boiler.
3 If fault persists, contact installer.
Restart
Press
Menu
Restart Button
2.34 HANDING OVER
After commissioning the system, hand it over to the householder by the following actions:
1. Hand the Instructions to the householder and explain their responsibilities under the relevant national regulations.
2. Explain and demonstrate the lighting and shutting down procedures.
3. Explain how to operate the boiler and system controls.
4. Ensure the greatest possible fuel economy consistent with the household requirements of both heating and hot water consumption.
5. Explain the precautions necessary to prevent damage to the system and to the building, in the event of the system remaining inoperative during frosty conditions.
6. Explain the function and the use of the boiler heating and domestic hot water controls.
7. Explain that due to system variations and seasonal temperature fluctuations DHW flow rates/temperature rise will vary, requiring adjustment at the draw off tap.
It is therefore necessary to draw the user’s attention to the section in the Users Instructions titled “Control of
Water Temperature” and the following statement:
“Additionally, the temperature can be controlled by the user via the draw-off tap: the lower the rate the higher the temperature, and vice versa” .
8. Explain the function of the boiler fault mode.
9. Explain and demonstrate the function of timers and temperature controls, radiator valves etc., for the economic use of the system.
10. If a timer is fitted draw attention to the timer Users
Instructions and hand them to the householder.
11. Explain that the gauge behind the drop down door, indicates the central heating system pressure and that if the normal COLD pressure of the system is seen to decrease over a period of time then a water leak is indicated. Explain the re-pressurising procedure and if unable to re-pressurise or if the pressure continues to drop a registered local heating installer should be consulted.
Refer to Section
2.17
12. Explain boiler restart procedure.
Refer to Section
2.33
13. After installation and commissioning please complete the Commissioning Checklist before handover to the customer.
Refer to
Page 62
IMPORTANT
14. A comprehensive service should be carried out annually.
Stress the importance of regular servicing by a Gas Safe
Registered Engineer.
15. Inform the householder of the boiler warranty and the requirement to register it to receive the full benefit.
1
2
3
0 bar
4
Installation and Servicing 35
36
Section 3 - Servicing
3.1 SERVICING SCHEDULE
WARNING: Servicing can only be carried out by Gas Safe Registered Engineers
Always turn OFF the gas supply at the gas service cock, and switch OFF and disconnect the electricity supply to the appliance before servicing
Combustion testing must be carried out by a competent person using a combustion analyser conforming to
BS EN 50379-3:2012.
To ensure the continued safe and efficient operation of the appliance, it is recommended that it is checked at regular intervals and serviced as necessary. The frequency of servicing will depend upon the installation condition and usage but should be carried out at least annually.
For the latest copy of literature, visit our website idealheating.com.
PRELIMINARY INSPECTION
1. Light the boiler and carry out a pre-service check, refer to the fault finding chart.
2. Check the flue terminal (and terminal guard if fitted) for damage and obstruction.
3. Check combustion by connecting the flue gas analyser to the flue gas sampling point as shown in the diagram and measure CO and CO
2
at maximum rate. Set the boiler to
Maximum and Minimum heat inputs.
Refer to Section
2.31
If the CO / CO
2
ratio is greater than 0.004 please proceed to “Cleaning Procedure”.
If the CO / CO
2
ratio is less than 0.004 please proceed to
“Check Procedure”.
CHECK PROCEDURE
1. Check all water and gas joints for signs of leakage.
Remake any suspect joints ensuring a gas tightness check is carried out if applicable and the water system is correctly refilled, vented and re-pressurised.
2. Proceed to “IMPORTANT”.
CLEANING PROCEDURE
1. Remove the casing.
2. Visually check the appliance for signs of leakage.
3. Remove the flue manifold.
4. Remove the fan.
5. Remove the burner.
6. Refit the sump outlet cover.
7. Clean the heat exchanger by pouring warm water across the whole heat engine to flush deposits taking care to avoid pouring water over the electrode.
8. Check the electrode for damage and clean using an abrasive cloth. Check and adjust the spark gap. Replace the electrode if damaged.
9. Clean out the sump outlet to ensure any debris is removed.
10. Remove and clean the condensate trap and re- prime the trap before re-installing.
11. Check the DHW filter for blockage.
12. Re-assemble the components in reverse order.
13. Clean the Ideal system filter. Refer to the system filter installation and maintenance guide for the correct method of servicing.
14. Carry out post service checks on the combustion circuit.
See General below.
15. Check the system water quality in accordance with
BS7593:2019.
16. Complete the service record in the Benchmark section.
IMPORTANT
1. If, for any reason, the condensate trap has been removed, ensure the trap is refilled with water before re-assembling.
2. After completing the servicing or exchange of components, always ensure all gas valve connections are gas tight with a gas soundness check up to the gas control valve.
3. When work is complete the front panel MUST be correctly refitted, ensuring that a good seal is made.
4. Clean the Ideal system filter, refer to system filter installation and maintenance guide for correct method of servicing.
5. Complete the service section in the Benchmark
Commissioning Checklist.
GENERAL
During Servicing, and after any maintenance or change of part of the combustion 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 pressure at maximum rate.
- The gas rate.
- The combustion performance.
Do not operate the boiler if the front panel is not fitted .
Flue
Sampling
Point
Air Sample
Point
Ensure all caps and seals are re-fitted after use
Installation and Servicing
Section 3 - Servicing
3.2 REMOVAL / REPLACEMENT OF COMPONENTS
WARNING: Do not operate the boiler without a front panel fitted
When replacing any component.
1. Isolate the electricity supply.
2. Turn off the gas supply.
3. Remove the boiler front panel.
Refer to Section
3.4
4. Swing the control box down into its servicing position.
After removing / replacing any component.
5. Ensure all gas valve connections are gas tight with a gas
soundness check up to the gas control valve.
6. Ensure all water connections are tight.
7. Test the appliance for correct and safe operation.
Refer to Section
3.1 (General)
Notes.
1. In order to assist fault finding, the control panel has an
LCD diagnostic display. The key to boiler fault conditions is shown in Section 4.
2. In order to replace components in Sections 3.12, 3.15 and 3.21-3.32, it is necessary to drain the boiler.
Refer to Section
3.3
3.3 DRAINING THE BOILER
Refer to Section
3.2
CENTRAL HEATING CIRCUIT
1. Close all the CH water isolating valves on both the flow and return.
2. To drain the primary heat exchanger circuit: Open the drain valve and attach a length of hose to the CH drain point.
43.5
3. After replacing any component on the boiler, remove the hose, close the drain valve and open all system isolating valves.
32 33 36 94
4. Repressurise by reconnecting the filling loop, check for leaks before proceeding to check operation of the boiler.
5. Disconnect filling loop.
Refer to Section
2.17
DOMESTIC HOT WATER CIRCUIT
1. Close all the DHW water isolating valves on the boiler inlet.
2. To drain the domestic hot water circuit: As there is no direct drain for the domestic hot water circuit, depending on the location of the boiler, opening the lowest hot water tap may drain this circuit. However it must be noted that some residual water will be released during replacement of components.
.
3. After replacing any component on the boiler, open isolating valve.
PRV
Grommet
CH
Flow
DHW
Outlet
Gas
DHW
Inlet
CH
Return Circuit
Drain
Installation and Servicing
37
38
Section 3 - Servicing
3.4 BOILER FRONT PANEL REMOVAL / REPLACEMENT
REMOVAL
1. Loosen the two screws retaining the front panel.
2. Pull the two clips down to disengage and pull panel forward and upward and remove.
REPLACEMENT
4. Hook the panel onto the top retaining clips.
5. Push the panel until the 2 bottom spring clips engage ensuring the 2 knobs and 4 buttons line up with the holes in the front panel.
6. Re-tighten the two retaining screws.
2
1
3
View from bottom of boiler
3.5 FLUE MANIFOLD REMOVAL/REPLACEMENT
1. Remove the two sump cover retaining screws.
2. Remove the sump cover.
3. Lift the manifold upwards to clear the sump.
4. Move the manifold to the left and pull down to remove.
View from top of boiler
Installation and Servicing
Section 3 - Servicing
3.6 FAN AND VENTURI ASSEMBLY REMOVAL AND CLEANING
1. Disconnect the electrical leads from the fan.
2. Remove the clip from the 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 screws and release the nozzle assembly.
6. Inspect the injector for blockage or damage.
7. Clean the outside of the injector and use a small flue brush to clean the injector hole. Do not use anything abrasive such as a file.
8.
Remove the screw and twist venturi anti-clockwise to remove venturi assembly, noting the orientation of the venturi in relation to the fan body.
9. Inspect fan outlet sealing gasket and replace if necessary.
10. Ensure the venturi is free from dust/debris.
11. Check the ‘O’-rings are fitted correctly to the gas outlet pipe replacing if any damage is witnessed.
1
3
8
Injector
Nozzle
5
2
Installation and Servicing
39
Section 3 - Servicing
3.7 BURNER REMOVAL AND CLEANING
Refer to Section
3.6
1. Remove the 2 burner front fixing screws and the
2 rear extended nuts.
2. Lift and pull forward the burner from the combustion chamber by holding the burner with two finger in the air inlet duct and your thumb on the top of the burner.
3. Tilt the burner towards yourself so that it raises to the vertical position.
4. Pull the burner out from the left hand side of the boiler once it is in the vertical position.
SCAN for video
1 1
Place thumb here
Insert two fingers 5. Carefully brush the ceramic burner with a soft non metallic bristle brush.
1 Lift the burner approximately 5 to 10 mm from the heat engine and then pull forward by the same amount.
3.8 CLEANING THE HEAT EXCHANGER
1. Replace the sump cover prior to the water flush process.
2. Thoroughly flush the heat exchanger by pouring water into the top of the combustion chamber ensuring the full surface of the heat exchanger is cleaned. Avoid pouring water over the electrode.
3. Remove the sump cover and clean loose deposits from the sump.
4. Inspect the ignition/detection electrode. Ensure that it is clean and in good condition - replace if necessary.
5. Check that the ignition gap is correct.
Refer to Section
3.9
2
40
Combined Ignition Detection Electrode
Installation and Servicing
Section 3 - Servicing
3.9 IGNITION / DETECTION ELECTRODE REPLACEMENT / INSPECTION
Refer to Section
3.2
Ignition /Detection
Electrode
Straight edge
1. Remove the fan.
Refer to Section
3.6
2. Remove the flue manifold.
3. Remove the burner.
Refer to Section
3.14
4. When servicing the boiler inspect the condition of the electrode and check the dimensions shown. If there is damage to the electrode continue to follow steps below for replacment.
5. Unplug the ignition lead from the electrode.
6. Remove the earth lead from the electrode.
7. Remove the 2 screws holding the electrode to the combustion chamber.
Spark Gap
3.5 mm 8. Remove the electrode.
9. Fit the new electrode, using the new gasket supplied. Check dimensions as shown.
Refer to Section
2.32 & 2.33
3 mm
3.10 CLEANING THE CONDENSATE TRAP
CAUTION: Keep trap upright when removing
1. Pull off the rubber pipe at the sump drain.
2. Turn the trap clockwise to disengage and lift to remove.
3. Clean and fill trap with water.
1
Condensate
Drain
SCAN for video
PRV
Grommet
Installation and Servicing
Gas
CH
Circuit
Drain
41
Section 3 - Servicing
3.11 BURNER INJECTOR REPLACEMENT
Refer to Section
3.6
3.12 DHW FILTER & DHW FLOW REGULATOR CLEANING/REPLACEMENT
Refer to Section
3.2
1. Isolate the DHW system.
Refer to Section
3.3
2. Turn the housing anti clockwise and pull forward to remove the cartridge. Be prepared for some water release.
3. Using a pair of pliers, pull out the plastic filter/flow regulator.
4. Clean or replace filter as necessary.
2
42
3.13 EXTERNAL SYSTEM FILTER CLEANING GUIDE
1. Switch off the boiler (isolate electrical supply).
2. Close the inlet/outlet valves. Remove magnet and vent.
3. Remove drain valve cap, open drain valve and vent.
4. Open inlet valve slowly and flush out filter until water runs clear.
5. Close the inlet valve. Close the drain valve.
6. Reinsert the magnet and replace the drain valve cap.
7. Open inlet/outlet valves, refill system and vent.
8. Restart the boiler.
3
Vent
2
2
5
1
Close
1
Close
CAUTION: Ensure that the magnet pocket is kept dry.
1
Close
IMPORTANT: Repressurise the system after cleaning the filter, as loss of pressure will occur.
2
Close
3
3
Vent
6
2
2
Open
1
1
4
7
2
Vent
1
Open
1
Open
1
Open
Installation and Servicing
3.14 BURNER REPLACEMENT
Section 3 - Servicing
Refer to Section
3.2 & 3.7
3.15 RETURN THERMISTOR REPLACEMENT
1. Isolate and drain down the boiler.
2. Remove the clip from the pump housing and remove the thermistor.
3. Disconnect the electrical lead from the thermistor.
4. Reconnect the electrical lead to the new thermistor and reassemble, ensuring that the thermistor is fully engaged and the clip is correctly located.
SCAN for video
2
Refer to Section
3.2
2
3.16 SPARK GENERATOR REPLACEMENT
1. Disconnect the leads from the spark generator.
2. Gently push up the generator to release the bottom clip from the gas valve mounting bracket.
3. Lift the spark generator up and out of the bottom retaining location point.
Refer to Section
3.2
4. Fit the new spark generator and reassemble, ensuring that the the earth lead is replaced.
Installation and Servicing
43
Section 3 - Servicing
3.17 GAS CONTROL VALVE REPLACEMENT
Refer to Section
3.2
1. Disconnect and remove the condensate trap and rubber connector.
Refer to Section
3.19
2. Unplug the electrical lead connection from the gas control valve.
3. Remove the outlet gas valve clip and slide the pipe upwards.
4. Undo the gas inlet pipe union at the inlet to the gas valve.
5. Undo the two screws fixing the gas valve to the chassis base and lift the gas valve upwards.
6. Fit the new gas control valve ensuring that the ‘O’ ring and sealing washer are in place and reconnect gas and electrical connections.
7. Refit the trap.
8. Ensure all gas valve connections are gas tight with a gas soundness check up to the gas control valve.
3
5
3.18 DIVERTER VALVE ACTUATOR REPLACEMENT
Refer to Section
3.2
To remove the motor:
1. Remove the condensate trap.
Refer to Section
3.10
2. Press Down on the hot keys until the diverter valve mid position is highlighted. Ensure that the diverter valve is in mid position.
Refer to Section
2.30
3. Place a flat bladed screwdriver in the actuator slot provided and ease out the actuator.
4. Disconnect the electrical plug from the motor.
5. Fit the new motor ensuring the arm is correctly engaged in the metal fork and reassemble ensuring the condensate trap is refilled with water. Reconnect the electrical plug to the motor.
44
Note. All spares will be delivered in mid-position.
3.19 CONDENSATE TRAP REPLACEMENT / CLEANING
Refer to Section
3.2
Installation and Servicing
Section 3 - Servicing
3.20 PRIMARY PCB REPLACEMENT
Press Select to confirm & the following screen is shown:
WARNING: It is critical that the correct boiler size and fuel type is entered in to the boiler.
CAUTION: Fit the earth strap provided with the PCB to your wrist and secure to a suitable earth on the boiler chassis.
Program this model?
1/6
Combi 24 kW
Natural Gas
Back Yes
Refer to Section
3.2
1. Carefully release the four retaining clips and remove control box cover.
2. Unplug all lead connections to the PCB.
3. Spring out the four side retaining clips and pull the PCB upwards to clear the corner retaining posts.
4. Fit the new PCB.
5. Re-connect all plug connections.
6. Reassemble.
7. Turn power on, display shows:
Installer
Initialise spare PCB?
Yes
Press Yes and the following screen is shown:
Select Boiler Brand
Option 1 of 5
Logic Max
Press Next until [Logic Max] is shown. Press Select.
Select Boiler Brand
Option 1 of 4
Combi
Back Next Select
Press Next until correct Boiler type is shown:
Combi, Heat, System UK or System IE
Press Select to confirm & the following screen is shown:
Select Boiler Model
Option 1 of 6
Combi
24 kW
Natural Gas
Back Next Select
Press Next until correct Boiler model shown
1/6, Combi 24 kW, Natural Gas
2/6, Combi 24 kW, Propane
3/6, Combi 30 kW, Natural Gas
4/6, Combi, 30 kW, Propane
5/6, Combi, 35 kW, Natural Gas
6/6, Combi, 35 kW, Propane
Press Yes to finish
FROST STAT
OPTIONAL
STAT/ MAINS IN
TIMER L N
IN
SL2
L
IN
SL1
L
MAINS IN
L N
1
3
1
Installation and Servicing
45
Section 3 - Servicing
3.21 DHW FLOW TURBINE SENSOR REPLACEMENT
Refer to Section
3.2
1. Drain the DHW system.
Refer to Section
3.3
2. Pull off the electrical connection.
Refer to Section
3.21
3. Using a suitable tool, lift and remove the retaining clip.
4. Use the clip to ease the turbine sensor from its housing.
5. Reassemble with new sensor.
4
2
3
46
3.22 PRESSURE GAUGE REPLACEMENT
Refer to Section
3.2
1. Drain the boiler.
Refer to Section
3.3
2. Remove the boiler front (see section 3.4), lower the control panel and remove the control box cover.
3. Ensuring there is no pressure in the system unclip the
C clip from the flow pipe port and remove the capillary connection together with ‘O’ ring.
4. Releasing the two retaining clips on the pressure gauge ease the pressure gauge through the front of the control panel.
5. Fit the new pressure gauge from the front of the lower control panel ensuring correct orientation. Locate push fit connection into flow pipe ensuring ‘O’ ring in place and secure with the ‘C’ clip.
6. Refill the boiler.
Refer to Section
2.17
3
5
Installation and Servicing
Section 3 - Servicing
3.23 PRV REPLACEMENT
Refer to Section
3.2
1. Drain the boiler.
Refer to Section
3.3
2. Remove the trap and rubber pipe.
3. Pull out and remove the clip retaining the PRV.
4. Lift out the PRV/pipe assembly.
5. Remove the pipe and transfer to the new PRV.
6. Reassemble ensuring the retaining clip is correctly fitted.
SCAN for video
7. Check the operation of the PRV by raising the water pressure until the valve lifts. This should occur within 0.3 bar of the preset lift pressure.
8. Check no escape of water occurs except at the discharge point
Refer to Section
2.17
9. Release water from the system until the minimum system design pressure is reached;
1.0 bar if the system is to be pre-pressurised.
3
3
3.24 PUMP AUTOMATIC AIR VENT REPLACEMENT
Refer to Section
3.2
1. Drain the boiler.
Refer to Section
3.3
2. Remove the expansion vessel.
Refer to Section
3.32
3. Firstly, increase access area by disconnecting the
22 mm pipe connection at top of pump manifold and bottom of heat exchanger and remove pipe.
4. The automatic air vent head is retained in the pump body with a bayonet connection.
The air vent head and float assembly is removed by turning the head anti-clockwise (viewed from above) and pulling upwards.
5. Reassemble. Ensure the air vent head ‘O’ ring seal is fitted.
6. Ensure the air vent cap is loose.
7. Refill the boiler. Check for leaks around the new air vent joint.
Refer to Section
2.17
Dust Cap
Installation and Servicing
47
Section 3 - Servicing
3.25 REPLACEMENT OF DHW THERMISTOR
Refer to Section
3.2
4. Fit the replacement thermistor and reassemble.
5. Re-establish the DHW supply, turn on a hotwater tap checking for leaks.
1. Isolate the DHW system.
2. Remove the retaining clip and extract the thermistor.
Be prepared for some water release.
3. Disconnect the wiring harness.
DHW
Thermistor position
2
48
3.26 DHW PLATE HEAT EXCHANGER REPLACEMENT
1. Drain the boiler.
Refer to Section
3.3
2. Remove condensate trap.
Refer to Section
3.10
3. Remove the 2 hex screws securing the plate heat exchanger to the composite housings.
4. Manoeuvre the plate heat exchanger out of the top LH or centre of the controls area. Be aware of any water spillage.
Refer to Section
3.2
5. Fit the new plate heat exchanger, using the new
‘O’-rings supplied.
Ensure that the depressions are on the bottom prior to fitting.
6. Reassemble.
7. Refill the boiler.
Refer to Section
2.17
8. Check that the boiler operates in both DHW & CH modes.
3
SCAN for video
Installation and Servicing
Section 3 - Servicing
3.27 DIVERTER VALVE BODY ASSEMBLY REPLACEMENT
Refer to Section
3.2
T o remove the valve body assembly:
1. Drain the boiler.
Refer to Section
3.3
2. Remove the condensate trap.
Refer to Section
3.10
3. Remove the electrical plug from the divertor valve.
4. Place a flat bladed screwdriver in the diverter valve motor
body slot provided and ease out the motor.
Refer to Section
3.18
5. Remove the return thermistor electrical connection.
Refer to Section
3.15
6. Remove the pump electrical connections.
Refer to Section
3.28
7. Remove DHW Turbine electrical connection.
Refer to Section
3.3
8. Remove the DHW plate heat exchanger (note orientation).
Refer to Section
3.26
9. Loosen the nut above pump and rotate the pipe.
10. If required remove expansion vessel connection hose.
Refer to Section
3.32
11. Remove the DHW inlet and CH return connection situated beneath the boiler.
12. Remove the four torx head screws fixing the return manifold to the boiler sheet steel base.
13. Lift the manifold assembly and remove from boiler.
14. Twist and remove the DHW manifold.
15. Remove the two diverter valve body fixing screws and withdraw the diverter valve body assembly.
16. Fit the new diverter valve body assembly and replace the two fixing screws.
17. Refit the DHW manifold, fit the assembly back to the boiler and reassemble.
18. Refill the boiler and check for leaks. Check that the boiler operates in both DHW & CH modes.
11
16 17
10
Installation and Servicing
13 15 12
49
50
Section 3 - Servicing
3.28 PUMP HEAD REPLACEMENT
Refer to Section
3.2
1. Drain the boiler.
Refer to Section
3.3
2. Disconnect the two electrical leads from the pump.
3. Remove the 4 hex screws retaining the pump head.
4. Remove the pump head.
Be aware of water spillage.
5. Fit the new pump head.
6. Reassemble.
7. Refill the boiler.
Refer to Section
2.17
3
3
3.29 CH WATER PRESSURE SWITCH REPLACEMENT
Refer to Section
3.2
1. Drain the boiler.
Refer to Section
3.3
2. Pull off the two electrical connections.
3. Using a suitable tool, pull out the metal retaining clip.
4. Carefully withdraw the pressure switch.
5. Fit the new pressure switch and reassemble. Ensure the
‘O’ ring is fitted and replace clip.
6. Refill the boiler.
Refer to Section
2.17
3
4
2
2
Installation and Servicing
Section 3 - Servicing
3.30 FLOW THERMISTOR REPLACEMENT
1. Drain down the boiler.
Refer to Section
3.3
5. Reassemble.
6. Refill the boiler.
Refer to Section
2.17
2. Unplug the electrical lead.
3. Remove the clip from the flow pipe and remove the thermistor.
4. Fit the new thermistor, ensure ‘O’ ring is fitted and replace clip.
Refer to Section
3.2
7. Check that the boiler operates in both DHW & CH modes.
3
2
Shown rotated 90º
Installation and Servicing
51
52
Section 3 - Servicing
3.31 HEAT ENGINE REPLACEMENT
Refer to Section
2.1
CAUTION: Protect the gas and electrical controls with a waterproof sheet.
Refer to Section
3.2
1. Drain the boiler (CH Circuit Drain).
Refer to Section
3.3
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.
4. Remove the fan / venturi assembly and place on one side.
Refer to Section
3.6
5. Remove the burner and place on one side.
Refer to Section
3.7
6. Remove the ignition/detection electrode.
Refer to Section
3.9
7. Remove the spark generator.
Refer to Section
3.16
8. Remove the gas valve.
Refer to Section
3.17
9. Remove the expansion vessel.
Refer to Section
3.32
10. Remove the 2 M5 screws retaining the spark generator, mounting bracket and transfer bracket to the new heat exchanger.
11. Undo the pump union nut, remove clip and remove pipe from expansion vessel.
12. Remove the two retaining pipe clips and remove pipes.
13. Remove the condensate rubber pipe.
Refer to Section
3.19 No.2
14. Remove the two heat exchanger fixing screws.
15. Remove the heat exchanger, slide out of location bracket.
16. If replacement sump required: Rotate heat exchanger assembly 180º. Place new sump onto heat exchanger, ensuring correct orientation and seal is in place.
Then gently apply pressure to the base of the sump at each tab fixing point and engage tabs onto the heat exchanger.
4
6
2
7
10
12
12
18
17. Reassemble, ensuring the heat exchanger is located correctly in the LHS retaining bracket. Replace any new
‘O’ rings supplied with new heat exchanger and replace gaskets or seals if any sign of damage is evident. When replacing the spring clips located on the return pipe connection, ensure clip is oriented to correctly match connecting pipe diametres.
18. Ensure the trap is filled with water.
Refer to Section
3.19
19. Refill the boiler and check for leaks.
Refer to Section
2.15
20. Ensure all gas valve connections are gas tight with a gas soundness check up to the gas control valve.
8
9
14
14
11
11
13
1
Installation and Servicing
Section 3 - Servicing
3.32 EXPANSION VESSEL RECHARGING & REPLACEMENT
Refer to Section
3.2
RECHARGING
1. Remove the charge point cap.
2. Recharge the tank pressure to 0.75 bar.
3. Reassemble.
7
REPLACEMENT
4. Drain the boiler CH circuit.
Refer to Section
3.3
5. Remove the retaining clip on the vessel water connection pipe and remove the pipe.
6. Support the expansion vessel and unscrew the 2 screws from the securing bracket, located on the top of the boiler, and remove.
Note the position of the bracket on the vessel.
7. Remove the expansion vessel.
8. Fit the new expansion vessel.
9. Reassemble ensuring the ‘O’ ring seal is in place and refit the retaining clip.
10. Refill the boiler and check for leaks.
Refer to Section
2.18
Recharge
Point
6
Installation and Servicing
53
Section 4 - Fault Finding
4.1 MAIN MENU, FAULT HELP
Fault finding help can be accessed through the menu.
Fault finding help lists all the common faults with the necessary checks. More detailed fault checks and actions are described in the following pages.
Menu
Exit
Change Service Time
Fault History
Fault Help
Vent System
Sensor Readings
Down Up Enter
Press
Fault Help
[Ideal] Technical Help Line:
[01482 498663]
[Spares: 01482 498665]
Exit Next
Fault Help
Exit
Low Water Pressure
Ignition Lockout
Overheat Lockout
Down Up
Press
Enter
Press
Fault Help
Only carry out the following tests if you are gas safe qualified
Exit Next
Press
54
4.2 OVERHEAT LOCKOUT
Is the Boiler and CH System filled with water and all isolation, system filter and radiator valves open?
YES
Is the Flow/Return Differential across the Boiler in excess of 30°C?
NO
Check the Flow and Return Thermistors
Refer to Section
3.15
& 3.30
Check resistance using a suitable multimeter connected across the thermistor’s terminal pins
Temperature Resistance kΩ
25 o C
60 o C
85 o C
9.7 – 10.3
2.4 – 2.6
1.0 – 1.1
NO
YES
Fill and vent the system and open all isolation valves, then restart boiler
Check that the Pump is rotating freely.
Is the Differential now below 20°C?
NO YES
Replace the Pump, then restart boiler
OK, now restart boiler
Installation and Servicing
Section 4 - Fault Finding
4.3 IGNITION LOCKOUT
If the boiler is restarted does the boiler ignite for a short time and then extinguish?
YES
Check the detection electrode and associated harness for: continuity, visual condition and position
Refer to Section
3.9
Check if the condensate pipe is blocked
Replace as necessary
Check trap and condensate drain pipe work for blockage and rectify if necessary. Boiler now working
OK?
NO
Replace Gas Valve
NO
YES
Is the Gas Pressure available at the Boiler Inlet (>18 mbar)?
YES
Is approx 24 Vdc supply available at the Gas Valve?
YES
Unplug gas valve. Is resistance between outside pins between
4 k Ω (± 2)?
YES
Check spark generator and associated harness for: continuity and visual condition
Refer to Section
3.16
Are these functioning correctly?
YES
Check ignition electrode and associated harness for: continuity, visual condition and position
Refer to Section
3.9
NO
NO
NO
NO
NO
Are these functioning correctly?
Check gas supply and rectify fault
Check wiring connection from gas valve to
PCB for continuity. If the wiring is OK then replace the PCB
Replace Gas Valve
Replace Spark
Generator and harness as necessary
Replace Ignition
Electrode and associated harness as necessary
4.4 FLAME ON BEFORE GAS VALVE ON
Restart the boiler, does Boiler Work OK?
NO
YES
Check routing and integrity of internal boiler wiring is OK
Check condition of Electrode and replace if deteriorated
Replace Electrode
4.5 LOW WATER PRESSURE
Are the Boiler and CH System filled with water and all isolation and radiator valves open (check pressure gauge is between 1 to 1.5 bar)?
YES
Are connections on water pressure switch secure?
NO
NO
YES
Installation and Servicing
Fill and vent the system and open all isolation valves
Re-fit connections
Replace water pressure switch
continued.......
55
56
Section 4 - Fault Finding
4.6 FLAME LOSS
Does the boiler ignite for a short time and then extinguish?
YES
Check the Ignition/ detection electrode and associated harness for: continuity, visual condition and position
Refer to Section
3.9
Check if condensate pipe is blocked. Check if flue is blocked.
Replace as necessary
NO Is the Gas Pressure available at the Boiler Inlet (>18 mbar)?
YES
Is 24V DC supply available at the
Gas Valve while the flame is on?
NO
NO
YES
Check spark generator and associated harness for: continuity and visual condition
Refer to Section
3.16
Are these functioning correctly?
YES
Check ignition electrode and associated harness for: continuity, visual condition and position
Refer to Section
3.9
Are these functioning correctly?
YES
NO
NO
Check trap and condensate drain pipe work for blockage and rectify if necessary. Boiler now working
OK?
NO
Check gas supply and rectify fault
Check wiring from gas valve to PCB for continuity. If the wiring is OK then replace the
PCB
Replace Spark
Generator and Harness as necessary
Replace Ignition
Electrode and associated harness as necessary
Replace Gas Valve
4.7 FAN FAULT
Does the wiring from the Fan to the PCB have secure connections at both ends and has not deteriorated? Does the wiring have continuity?
YES
Is there 230 VAC at the Blue and Brown connections to the 3 way connection on the Fan?
NO
Rectify Wiring & connections
NO
YES
Replace PCB
Replace Fan
Installation and Servicing
Section 4 - Fault Finding
4.8 FLOW THERMISTOR FAULT
NO
Is the wiring securely connected to the Flow Thermistor located in the Flow Pipe lower LHS of Boiler?
YES
Disconnect the wiring from the Flow Thermistor
Check the resistance using a suitable multimeter connected across the Thermistor’s terminal pins
Temperature Resistance kΩ
25 o C
60 o C
85 o C
9.7 – 10.3
2.4 – 2.6
1.0 – 1.1
Is the Thermistor value correct?
YES
Is the wiring securely connected to the 8 way connector X7?
NO
NO
YES
Securely connect the wiring to the Flow
Thermistor
Fit a new Thermistor
Securely connect the wiring to the PCB
Replace PCB
4.9 RETURN THERMISTOR FAULT
Pump Housing
Check the resistance using a suitable multimeter connected across the thermistor’s terminal pins
Temperature Resistance kΩ
25 o C
60 o C
85 o C
9.7 – 10.3
2.4 – 2.6
1.0 – 1.1
Is the Thermistor value correct?
YES
Is there continuity between the PCB and the Thermistor?
NO
NO
YES
Replace PCB
Fit a new Thermistor
Check and replace wiring as necessary
Installation and Servicing continued.......
57
Section 4 - Fault Finding
4.10 OUTSIDE SENSOR FAULT
Is the wiring securely connected at both the boiler and
Outside Sensor?
NO Securely connect the wiring at both the boiler and Outside Sensor
YES
Disconnect the wires to the outside sensor.
Check the resistance using a suitable multimeter connected across the Outside Sensor’s terminal pins
Temperature Resistance kΩ
0 o C
15 o C
30 o C
31.0 – 35.0
15.0 – 16.5
7.7 – 8.5
Is the Outside Sensor value correct?
YES
Is the wiring securely connected between the incoming terminal block boiler connection of the
Outside Sensor and the PCB?
YES
Replace PCB
NO
NO
Fit a new Outside Sensor
Securely connect the wiring at the
Terminal Block and the PCB
58
4.11 NO CH OPERATION BUT DHW WORKS OK
YES
Is “Off” shown underneath the rad on the display?
Press Mode button (B) until “Off” not shown
NO
Are CH Timer and Room Thermostat switched on?
YES
Are the Radiator Valves Open?
YES
NO
NO
Is there 230 V AC (SL1)?
YES
If an OpenTherm Room Stat is not connected, is there a link wire across the OpenTherm connections
(B)?
YES
Replace the Divertor Valve
NO
NO
Switch CH Timer and Room Thermostat On
Open the Radiator Valves
No voltage from Timer/Room Stat
This is not a boiler fault
Ensure voltage is supplied to boiler by rectifying external wiring
Connect a link wire across the OpenTherm connections
OPEN THERM./
WEATHER COMP.
B
Installation and Servicing
Section 4 - Fault Finding
4.12 NO DHW BUT CH WORKS OK
Does tap symbol change from blue to orange when a tap is turned on?
NO
Are hot & cold pipe work crossed?
NO
YES
Correct pipe work
YES
Is wiring connected between PCB
& DHW turbine?
NO Re-connect wiring
YES
Remove turbine & check for debris in turbine & filter. Replace turbine if necessary
NO Replace DHW turbine
Are the flow rates correct?
Refer to Section
1.2
NO
Adjust flow rates to achieve 35°C temp rise and check filter fitted in turbine is not blocked with debris
YES
Is the wiring between the PCB and the diverter valve motor connected?
NO
YES
Reconnect wiring or replace wiring harness if no continuity
Is diverter head fully engaged and clip secured onto water set?
YES
NO
NO
Is diverter valve stuck in CH position?
YES
Re-engage diverter head and secure clip to water set
Replace PCB
Check and re-fit diverter valve actuator head.
Is boiler DHW OK?
NO
Change diverter valve motor
FROST STAT
OPTIONAL
ROOM
STAT/ MAINS IN
TIMER L N
IN
SL2
L
IN
SL1
L
OPEN THERM./
WEATHER COMP.
MAINS IN
L N
B
Installation and Servicing continued.......
59
60
Section 4 - Fault Finding
4.13 NO DISPLAY
Is there 230 V AC to the boiler at L and N?
YES
Is the wiring from the terminal block to the PCB connected securely?
YES
Replace the PCB
NO
NO
Supply power to the boiler
Connect the wiring from the terminal block to the
PCB securely
L
N
4.14 DHW THERMISTOR FAULT
Disconnect the DHW thermistor electrical connection
Check the resistance using a suitable multi-meter connected across the thermistor’s terminal pins
Temperature Resistance kΩ
25 o C 9.7 – 10.3
60 o C 2.4 – 2.6
Is the thermistor value correct?
YES
Is there continuity between the PCB and the
Thermistor?
YES
Replace the PCB
NO
NO
Fit a new thermistor
Check and replace wiring as necessary
Installation and Servicing
Section 5 - 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 Heating.
Failure to do so could affect safety or performance of this appliance.
Comprehensive spares parts information and details of approved Ideal Parts Distributors are available on idealparts.com
-
-
-
Our Parts team are also available to help with your Ideal Spare Parts enquiries on 01482 498665.
When calling, and to ensure we can provide you with the most accurate parts information, please ensure you have the following to hand;
Boiler Model
Appliance GC Number
Boiler Serial Number
LINK to spares
Installation and Servicing 61
Section 6 - Benchmark to Commissioning
62 Installation and Servicing
Section 6 - Benchmark to Commissioning
Benchmark Commissioning &
Warranty Validation Service Record
It is a requirement that the boiler is installed and commissioned to the manufacturers’ instructions and the data fields on the commissioning checklist completed in full.
To instigate the boiler warranty the boiler needs to be registered with the manufacturer within one month of the installation. The warranty rests with the end-user (consumer), and they should be made aware it is ultimately their responsibility to register with the manufacturer, within the allotted time period.
It is essential that the boiler is serviced in line with the manufacturers’ recommendations, at least annually. This must be carried out by a competent Gas
Safe registered engineer. The service details should be recorded on the Benchmark
Service and Interim Boiler Work Record and left with the householder. Failure to comply with the manufacturers’ servicing instructions and requirements will invalidate the warranty.
www.hhic.co.uk
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.
Failure to install and commission according to the manufacturers’ instructions and complete this Benchmark Commissioning Checklist will invalidate the warranty. This does not affect the customer’s statutory rights.
* All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a
Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer.
© Heating and Hotwater Industry Council (HHIC) www.centralheating.co.uk
Installation and Servicing 63
64
Section 6 - Benchmark to Commissioning
GAS BOILER SYSTEM COMMISSIONING CHECKLIST & WARRANTY VALIDATION RECORD
Address:
Boiler make and model:
Boiler serial number:
Commissioned by (PRINT NAME):
Company name:
Company email:
Gas Safe registration number:
Telephone number:
Company address:
Commissioning date:
Heating and hot water system complies with the appropriate Building Regulations? Yes
Optional: Building Regulations Notification Number (if applicable):
Time, temperature control and boiler interlock provided for central heating and hot water
Boiler Plus requirements (tick the appropriate box(s))
Yes
Boiler Plus option chosen for combination boiler in ENGLAND
Weather compensation
Load compensation
Smart thermostat with automisation and optimisation
Flue Gas Heat Recovery
Time and temperature control to hot water Cylinder thermostat and programmer/timer Combination boiler
Zone valves
Thermostatic radiator valves
Automatic bypass to system
Underfloor heating pre-existing pre-existing pre-existing pre-existing
Fitted
Fitted
Fitted
Fitted
Water quality
The system has been flushed, cleaned and a suitable inhibitor applied upon final fill, in accordance with BS7593 and boiler manufacturers’ instructions
What system cleaner was used?
What inhibitor was used?
Primary water system filter pre-existing
CENTRAL HEATING MODE measure and record (as appropriate)
Gas rate (for combination boilers complete DHW mode gas rate)
Brand:
Brand:
Fitted m 3/ hr or
Product:
Product:
Not required
Not required
Not required
Not required
Yes
Not required ft 3 /hr
Central heating output left at factory settings?
If no, what is the maximum central heating output selected?
Dynamic gas inlet pressure
Central heating flow temperature
Central heating return temperature
System correctly balanced/rebalanced?
COMBINATION BOILERS ONLY
Is the installation in a hard water area (above 200ppm)?
Water scale reducer/softener
What type of scale reducer/softener has been fitted?
Water meter fitted?
If yes- DHW expansion vessel
Pressure reducing valve
DOMESTIC HOT WATER MODE Measure and record pre-existing pre-existing pre-existing
Brand:
Gas rate
Dynamic gas inlet pressure at maximum rate
Cold water inlet temperature
Hot water has been checked at all outlets
CONDENSATE DISPOSAL m 3/ hr
Yes
The condensate drain has been installed in accordance with the manufacturers’ instructions and/or BS5546/BS6798
Point of termination Internal
Method of disposal
ALL INSTALLATIONS
Gravity
Yes
Yes
Fitted
Yes
Fitted
Fitted
Product: or
No
Yes
No
Not required
No
Not required
Not required ft 3 /hr mbar
°C
Temperature °C
External (only where internal termination impractical)
Pumped kW mbar
°C
°C
Yes
Record the following
At max rate:
At min rate (where possible)
CO ppm CO
2
% CO/CO
2
Ratio
CO ppm CO
2
% CO/CO
2
Ratio
Where possible, has a flue integrity check been undertaken in accordance with manufacturers’ instructions, and readings are correct?
Yes
The operation of the boiler and system controls have been demonstrated to and understood by the customer
The manufacturers’ literature, including Benchmark Checklist and Service Record, has been explained and left with the customer
Yes
Yes
Commissioning Engineer’s signature
Customer’s signature
(To confirm satisfactory demonstration and receipt of manufacturers’ literature)
* All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a
Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer.
© Heating and Hotwater Industry Council (HHIC) www.centralheating.co.uk
Installation and Servicing
Section 6 - Benchmark to Commissioning
SERVICE & INTERIM BOILER WORK RECORD
It is recommended that your boiler and heating system are regularly serviced and maintained, in line with manufacturers’ instructions, and that the appropriate service / interim work record is completed.
Service provider
When completing a service record (as below), please ensure you have carried out the service as described in the manufacturers’ instructions. Always use the manufacturers’ specified spare parts.
SERVICE/INTERIM WORK ON BOILER delete as appropriate
Date:
Engineer name:
Telephone N o :
Company name:
Gas Safe registration N o :
Max rate CO ppm CO
Min rate CO ppm CO
² %
² %
Where possible, has a flue integrity check been undertaken in accordance with manufacturers’ instructions, and readings are correct?”
CO/CO
²
CO/CO
² yes
Gas rate: m 3 /h OR
Were parts fitted?
delete as appropriate Yes
Parts fitted:
System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and boiler manufacturers’ instructions. *
Comments: ft 3 /h
No yes n/a
SERVICE/INTERIM WORK ON BOILER delete as appropriate
Date:
Engineer name:
Telephone N o :
Company name:
Gas Safe registration N o :
Max rate CO ppm CO
Min rate CO ppm CO
² %
² %
Where possible, has a flue integrity check been undertaken in accordance with manufacturers’ instructions, and readings are correct?”
CO/CO
²
CO/CO
² yes
Gas rate: m 3 /h OR
Were parts fitted?
delete as appropriate Yes
Parts fitted:
System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and boiler manufacturers’ instructions. *
Comments: ft 3 /h
No yes n/a
Signature:
*A System inhibitor efficacy test is required on every annual service in accordance with the manufacturers’ instructions and BS 7593. It is only acceptable to not have undertaken this if the service engineers attendance visit was in between annual services to attend a non-water facing component.
Signature:
*A System inhibitor efficacy test is required on every annual service in accordance with the manufacturers’ instructions and BS 7593. It is only acceptable to not have undertaken 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:
Telephone N o :
Company name:
Gas Safe registration N
Max rate CO ppm CO
² %
Min rate CO ppm CO
² %
Where possible, has a flue integrity check been undertaken in accordance with manufacturers’ instructions, and readings are correct?” o :
CO/CO
CO/CO
²
² yes
Gas rate: m 3 /h OR
Were parts fitted?
delete as appropriate
Yes
Parts fitted: ft 3 /h
No
System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and boiler manufacturers’ instructions. *
Comments: yes n/a
SERVICE/INTERIM WORK ON BOILER delete as appropriate
Date:
Engineer name:
Telephone N o :
Company name:
Gas Safe registration N
Max rate CO ppm CO
² %
Min rate CO ppm CO
² %
Where possible, has a flue integrity check been undertaken in accordance with manufacturers’ instructions, and readings are correct?” o :
CO/CO
CO/CO
²
² yes
Gas rate: m 3 /h OR
Were parts fitted?
delete as appropriate
Yes
Parts fitted:
System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and boiler manufacturers’ instructions. *
Comments: ft 3 /h
No yes n/a
Signature:
*A System inhibitor efficacy test is required on every annual service in accordance with the manufacturers’ instructions and BS 7593. It is only acceptable to not have undertaken this if the service engineers attendance visit was in between annual services to attend a non-water facing component.
Signature:
*A System inhibitor efficacy test is required on every annual service in accordance with the manufacturers’ instructions and BS 7593. It is only acceptable to not have undertaken 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:
Telephone N o :
Company name:
Gas Safe registration N o
Max rate CO ppm CO
² %
Min rate CO ppm CO
² %
Where possible, has a flue integrity check been undertaken in accordance with manufacturers’ instructions, and readings are correct?”
:
CO/CO
CO/CO
²
² yes
Gas rate: m 3 /h OR
Were parts fitted?
delete as appropriate
Yes
Parts fitted:
System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and boiler manufacturers’ instructions. *
Comments: ft 3 /h
No yes n/a
SERVICE/INTERIM WORK ON BOILER delete as appropriate
Date:
Engineer name:
Telephone N o :
Company name:
Gas Safe registration N o
Max rate CO ppm CO
² %
Min rate CO ppm CO
² %
Where possible, has a flue integrity check been undertaken in accordance with manufacturers’ instructions, and readings are correct?”
:
CO/CO
CO/CO
²
² yes
Gas rate: m 3 /h OR
Were parts fitted?
delete as appropriate
Yes
Parts fitted:
System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and boiler manufacturers’ instructions. *
Comments: ft 3 /h
No yes n/a
Signature: Signature:
*A System inhibitor efficacy test is required on every annual service in accordance with the manufacturers’ instructions and BS 7593. It is only acceptable to not have undertaken this if the service engineers attendance visit was in between annual services to attend a non-water facing component.
*A System inhibitor efficacy test is required on every annual service in accordance with the manufacturers’ instructions and BS 7593. It is only acceptable to not have undertaken this if the service engineers attendance visit was in between annual services to attend a non-water facing component.
* All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a
Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer.
© Heating and Hotwater Industry Council (HHIC) www.centralheating.co.uk
Installation and Servicing 65
66
Section 6 - Benchmark to Commissioning
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.
PRIOR TO CO LEVEL AND COMBUSTION RATIO CHECK
The installation instructions must have been followed, gas type verified and gas supply pressure / gas rate checked as required prior to commissioning.
As part of the installation process, ESPECIALLY WHERE A FLUE HAS BEEN FITTED BY PERSONS OTHER THAN
THE BOILER INSTALLER, visually check the integrity of the whole flue system to confirm that all components are correctly assembled, fixed and supported. Check that maximum flue lengths have not been exceeded and all guidance has been followed (e.g. Gas Safe Register Technical Bulletin (TB) 008 where chimney/flues are in voids).
The ECGA should be of the correct type, as specified by BS EN 50379-3:2012.
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 the analyser.
Check and zero the analyser IN FRESH AIR in accordance with the analyser manufacturer’s instructions.
KEY:
CO = carbon monoxide
CO
2
= carbon dioxide
O
2
= oxygen
Combustion Ratio = The CO reading measured in ppm divided by the CO
2
reading first converted to ppm ppm = parts per million
GS(I&U)R = Gas Safety (Installation and Use) Regulations
Installation and Servicing
Start
Section 6 - Benchmark to Commissioning
Set Boiler to Maximum Gas Rate.
In accordance with boiler instructions, set boiler to operate at maximum rate (full load condition). Allow sufficient time for combustion to stabilise.
Refer to Section
2.31 on page 33
Note . Do not insert analyser probe during this period to avoid possible flooding of sensor.
Verify Flue Integrity.
Analyser readings indicate that combustion products and inlet air must be mixing. Further investigation of the flue is therefore required.
Check that flue components are assembled, fixed and supported as per instructions. Check that flue and flue terminal are not obstructed.
Is
O 2 more than or equal to 20.6% or CO 2 less than or equal to 0.2%?
Yes
No
Turn off appliance and call Ideal Technical Helpline for advice.
The appliance must not be commissioned until problems are identified and resolved. If commissioning cannot be fully completed, the appliance must be disconnected from the gas supply in accordance with GSIUR.
Check that no seals, e.g. Those on flue extensions, have been displaced during installation. Rectify if necessary.
Is
CO level less than 350ppm and CO/CO
2 ratio less than 0.0040?
Yes
No
Turn off Appliance and Call Ideal Technical Helpline.
The appliance must not be commissioned until problems are identified and resolved. If commissioning cannot be fully completed, the appliance must be disconnected from the gas supply in accordance with GS(I&U)R.
Note. Check and record CO level and combustion ratio at both max. and min. rate before contacting Ideal.
Carry Out Flue Integrity Check Using Analyser.
Insert analyser probe into air inlet test point (where available) and allow readings to stabilise.
Note . Where no air inlet test point is provided then a flue integrity check with the analyser is not possible.
The installer should verify that flue integrity has been visually checked in accordance with the “ Prior to CO level and combustion ratio check ” (see opposite page) before proceeding to the “ check CO level and combustion ratio at maximum rate ” stage below.
No
Is
O 2 more than or equal to 20.6% OR CO 2 less than or equal to 0.2%?
Yes
Check CO level and Combustion Ratio at Maximum Gas
Rate.
With boiler still set at maximum gas rate, insert analyser probe into flue gas sampling point. Allow readings to stabilise before recording.
No
Is
CO level less than 350ppm AND CO/CO 2 ratio less than 0.0040?
Yes
Set Boiler to Minimum Gas Rate.
In accordance with boiler instructions, set boiler to operate at minimum rate (to minimum load condition). Allow sufficient time for combustion to stabilise.
Refer to Section
2.31 on page 33
Check CO and Combustion Ratio at Minimum Gas Rate.
With boiler set at minimum rate, insert analyser probe into flue gas sampling point. Allow readings to stabilise before recording.
No
Is
CO level less than 350ppm AND CO/CO 2 ratio less than 0.0040?
Yes
Boiler is Operating Satisfactorily.
No further actions required.
Ensure test points are capped, boiler case is correctly replaced and all other commissioning procedures are completed. Complete Benchmark Checklist, recording CO and combustion ratio readings as required.
Installation and Servicing 67
At Ideal Heating we take our environmental impact seriously, therefore when installing any Ideal Heating product please make sure to dispose of any previous appliance in an environmentally conscious manner. Households can contact their local authority to find out how.
See https://www.gov.uk/managing-your-waste-an-overview for guidance on how to efficiently recycle your business waste.
Technical Training
Our Expert Academy offer a range of training options designed and delivered by our experts in heating.
For details please contact: expert-academy.co.uk
Ideal Boilers Ltd., pursues a policy of continuing improvement in the design and performance of its products.
The right is therefore reserved to vary specification without notice.
Ideal is a trademark of Ideal Boilers.
Registered Office
Ideal Boilers Ltd., National Avenue, Hull, East Yorkshire, HU5 4JB
Tel 01482 492251 Fax 01482 448858
Registration No. London 322 137
EU Authorised Representative:
Atlantic SFDT
44 Boulevard des Etats-Unis, 85 000 La Roche-Sur-Yon, France
+33 (0)2 51 44 34 34
Ideal Technical Helpline: 01482 498663
Ideal Consumer Helpline: 01482 498660
Ideal Parts: 01482 498665 idealheating.com
USER GUIDE
LOGIC MAX COMBI
2
C24 C30 C35
Ideal Technical Helpline: 01482 498663
Ideal Consumer Helpline: 01482 498660
Ideal Parts: 01482 498665 idealheating.com
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.
July 2022
UIN 228290 A05
WEEE DIRECTIVE 2012/19/EU
Waste Electrical and Electronic Equipment Directive
• At the end of the product life, dispose of the packaging
and product in a corresponding recycle centre.
• Do not dispose of the unit with the usual domestic refuse.
• Do not burn the product.
• Remove the batteries.
• Dispose of the batteries according to the local statutory
requirements and not with the usual domestic refuse.
2
All Gas Safe Register installers carry a Gas Safe Register ID card, and have a registration number. Both should be recorded in the
Benchmark Commissioning Checklist. You can check your installer by calling Gas Safe Register direct on 0800 4085500.
Ideal Heating is a member of the Benchmark scheme and fully supports the aims of the programme. Benchmark has been introduced to improve the standards of installation and commissioning of central heating systems in the UK and to encourage the regular servicing of all central heating systems to ensure safety and efficiency.
THE BENCHMARK SERVICE INTERVAL RECORD MUST BE COMPLETED AFTER EACH SERVICE
User Guide
CONTENTS
1.2. Boiler Operation .......................................................................4-5
1.3 System Water Pressure ..............................................................6
1.4 Points for the boiler user .............................................................6
1.5 Frozen Condensate Drain ...........................................................7
1.6 General Information.....................................................................7
1.7 Troubleshooting ...........................................................................8
1.8 Display Functions - Normal Operation Mode ..............................9
1.9 Display Functions - Fault messages .........................................10
1.1 INTRODUCTION
The Logic MAX Combi 2 is a combination boiler providing both central heating and instantaneous domestic hot water.
Featuring full sequence automatic ignition and fan assisted combustion.
Due to the high efficiency of the boiler, condensate is produced from the flue gases and this is drained to a suitable disposal point through a plastic waste pipe at the base of the boiler. A condensate ‘plume’ will also be visible at the flue terminal.
Safety
Current Gas Safety (Installation & Use) Regulations or rules in force.
It is the law that this appliance installation and any work carried out on the appliance is carried out by a Gas Safe Registered engineer in accordance with the above Regulations.
It is essential that the instructions in this booklet are strictly followed, for safe and economical operation of the boiler.
Electricity Supply
This appliance must be earthed.
Supply: 230 V ~ 50 Hz. The fusing should be 3 A.
Important Notes
• This appliance must not be operated without the casing correctly 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 boiler then it MUST NOT BE USED until the fault has been corrected by a Gas Safe Registered Engineer.
• Under NO circumstances should any of the sealed components on this appliance be used incorrectly or tampered with.
• T
his appliance can be used by children 8 years and above.
A
lso persons with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, provided they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance.
C
leaning and user maintenance shall not be made by children without supervision.
User Guide 3
4
1.2 BOILER OPERATION
E D
On at 60°C
Target 60°C
Ready
Radiator Target 60°C
Room Thermostat or
Timer Off
On
Preheat Menu Mode
A C F B
Legend
A. Domestic Hot Water
Temperature Knob
B. Central Heating Temperature Knob
C. Hot Keys
D. Boiler Status Display
E. Burner On Indicator
F. Mode Button
TO START THE BOILER
Start the boiler as follows:
1.
Ensure that all hot water taps are turned off.
2.
Switch on electricity to the boiler and check that all external controls, e.g. programmer and room thermostat, are on.
3.
Press the Mode Button until Ready or On is shown underneath both the Tap and Radiator symbols.
4. Turn the Domestic Hot water temperature knob (A) clockwise until a 65°C target temperature is shown. Turn the Central Heating temperature Knob (B) clockwise until an 80°C target temperature is shown.
The boiler will commence ignition sequence, supplying heat to the central heating, if required.
Note. In normal operation the boiler status display (D) will display messages.
Refer to Section
1.8
Boiler frost protection - boiler will fire if temperature is below
5ºC.
During normal operation the burner on symbol (E) will remain illuminated when the burner is lit.
If the boiler fails to light after five attempts the following fault messages will be displayed:
Ignition Lockout
1 Check other gas appliances work.
2 Restart boiler.
3 If fault persists, contact installer.
Restart Menu
To restart the boiler, press ‘Restart’. The boiler will repeat the ignition sequence. If the boiler still fails to light consult a
Registered Gas Installer.
OPERATION MODES
Winter Conditions - (Central Heating and Domestic Hot Water required)
Press the Mode Button until either Ready or On is shown under both the Tap and Radiator symbols [ ].
The boiler will fire and supply heat to the radiators.
The domestic hot water preheat will operate with the preheat button set to ‘Preheat On’ .
Summer Conditions - (Domestic Hot Water only required)
Press the Mode button until Ready or On is shown under the
Tap symbol [ ] and Off is shown under the Radiator symbol
[ ].
OR
Set the central heating demand on the external controls to
OFF.
0 bar
4
3
The domestic hot water preheat will operate with the preheat button set to ‘ Hot Water On ’.
Boiler Off
Set the mode button (C) to ‘ BOILER OFF ’. The boiler mains power supply must be left on to enable frost protection (see
Frost Protection).
PREHEAT - DOMESTIC HOT WATER
The domestic hot water heat exchanger within the boiler can be kept preheated to provide faster delivery of hot water at the tap. This is achieved by pressing the preheat button to
‘Preheat On’ or ‘Preheat Timed’ .
The boiler will operate periodically for a few seconds to maintain the domestic hot water heat exchanger in a preheated condition. The average time period between operation is 90 minutes. This may vary considerably due to the surrounding ambient temperature of the boiler. The boiler will operate whenever there is a demand for domestic hot water.
If standard hot water delivery is satisfactory set the preheat to
‘ Preheat Off ’.
If Preheat is switched to Timed then preheating will only occur when required rather than all the time. The boiler learns the usage patten for DHW over week and then times the the DHW preheat to only operate during the usage periods from the previous week.
This improves the speed of response for DHW whilst also reducing the use of gas.
CONTROL OF WATER TEMPERATURE
Domestic Hot Water
The domestic hot water temperature is limited by the boiler controls to a maximum temperature of 65 º C, adjustable via the domestic hot water temperature knob (A). At low DHW draw off rates the maximum temperature may exceed 65ºC.
Approximate temperatures for domestic hot water:
Knob Setting
Minimum
Maximum
Hot Water Temperature (approx.)
40ºC
65ºC
Due to system variations and seasonal temperature fluctuations, domestic hot water flow rates/temperature rise will vary, requiring adjustment at the tap : the lower the flow rate the higher the temperature, and vice versa.
User Guide
CENTRAL HEATING
The boiler controls the central heating radiator temperature to a maximum of 80 o C, adjustable via the central heating temperature knob (B).
Approximate temperatures for central heating:
Knob Setting
Minimum
Maximum
Central Heating Radiator Temperature (approx.)
30ºC
80ºC
For economy setting [ ] refer to Efficient Heating System
Operation.
EFFICIENT HEATING SYSTEM OPERATION
The boiler is a high efficiency, condensing appliance which will automatically adjust its output to match the demand for heat.
Therefore gas consumption is reduced as the heat demand is reduced.
The boiler condenses water from the flue gases when operating most efficiently. To operate your boiler efficiently
(using less gas) turn the central heating knob (B) until the leaf symbol is shown [ ]. In winter periods it may be necessary to turn the knob clockwise towards a higher temperature e.g.
80, to meet your heating requirements. This will depend on the house and radiators used.
Reducing the room thermostat setting by 1ºC can reduce gas consumption by up to 10%.
WEATHER COMPENSATION
When the Weather Compensation option is fitted to the system then the central heating temperature knob (B) becomes a method of controlling room temperature. Turn the knob clockwise to increase room temperature and anti-clockwise to decrease room temperature. Once the desired setting has been achieved, leave the knob in this position and the system will automatically achieve the desired room temperature for all outside weather conditions.
BOILER FROST PROTECTION
The boiler is fitted with frost protection that operates in all modes, provided the power supply to the boiler is always turned on. If the water in the boiler falls below 5ºC, the frost protection will activate and run the boiler to avoid freezing.
The process does not guarantee that all other parts of the system will be protected.
If a system frost thermostat has been installed, the boiler must be set in winter mode, [ ], for the system frost protection to run.
If no system frost protection is provided and frost is likely during a short absence from home it is recommended to leave the system heating controls or built in programmer (if fitted) switched on and running at a reduced temperature setting. For longer periods, the entire system should be drained.
BOILER RESTART
To restart the boiler, when directed in the listed fault messages press the “Restart” button. The boiler will repeat its ignition sequence. If the boiler still fails to start consult a Gas Safe
Registered Engineer.
MAINS POWER OFF
To remove all power to the boiler the mains power switch must be turned off.
User Guide 5
1.3 SYSTEM WATER PRESSURE
The system pressure gauge which can be viewed by lowering the drop down door, indicates the central heating system pressure. If the pressure is seen to fall below the original installation pressure of 1-2 bar over a period of time and continue to fall then a water leak may be indicated.
In this event re-pressurise the system as shown below. If unable to do so or if the pressure continues to drop a Gas Safe Registered Engineer should be contacted.
THE BOILER WILL NOT OPERATE IF THE PRESSURE HAS REDUCED TO LESS THAN
0.3 BAR UNDER THIS CONDITION.
1 bar
Min
To Top up the system :-
1. Ensure both & handles (blue & green) are in closed position (as shown below)
2. Remove the plug and cap and retain.
3. Connect the filling loop to the Domestic Hot Water (DHW) inlet and tighten. Also ensure that the other end of filling loop is hand tight.
4. Turn the Domestic Hot Water (DHW) Inlet blue handle to the horizontal position.
5. Ensuring no leaks are seen, gradually turn the filling loop handle (green) B to the horizontal position.
2 bar
2
1
0 bar
4
3
Max
6. Wait for the pressure gauge to reach 1 to 1.5 bar.
7. Once pressure is reached turn valves & closed position.
B back to the
8. Disconnect the filling loop, replace cap and plug. There can be some water spillage at this point.
SCAN for video
Filling Positions shown
Filling
Loop
Plug
DHW Inlet
Valve
Filling
Loop
Top Up Positions shown
Cap DHW Inlet
Valve
Cap
B
Plug
B
A
(Blue)
A
(Blue)
6
Filling Loop
Handle
(Green)
C
(Black)
CH Return
Filling Loop
Handle
(Green)
C
CH Return
(Black)
1.4 POINTS FOR THE BOILER USER
In line with our current warranty policy we would ask that you check through the following guide to identify any problems external to the boiler prior to requesting a service engineers visit. Should the problem be found to be other than with the appliance we reserve the right to levy a charge for the visit, or for any pre-arranged visit where access is not gained by the engineer.
FOR ANY QUERIES PLEASE RING THE IDEAL CONSUMER HELPLINE : 01482 498660
BOILER RESTART PROCEDURE - To restart boiler press the restart button
User Guide
1.5 FROZEN CONDENSATE DRAIN
This appliance is fitted with a siphonic condensate trap system that reduces the risk of the appliance condensate from freezing. However should the condensate pipe to this appliance freeze, please follow these instructions: a. If you do not feel competent to carry out the defrosting instructions below please call your local Gas Safe
Registered installer for assistance.
b. If you do feel competent to carry out the following instructions please do so with care when handling hot utensils. DO NOT attempt to thaw pipework above ground level.
If this appliance develops a blockage in its condensate pipe, its condensate will build up to a point where it will make a gurgling noise prior to locking out displaying “Ignition Lockout” on the display. If the appliance is restarted it will make a gurgling noise prior to it locking out displaying “Ignition Lockout” on the display.
To unblock a frozen condensate pipe;
1. Follow the routing of the plastic pipe from its exit point on the appliance, through its route to its termination point.
Locate the frozen blockage. It is likely that the pipe is frozen at the most exposed point external to the building or where there is some obstruction to flow. This could be at the open end of the pipe, at a bend or elbow, or where there is a dip in the pipe in which condensate can collect.
The location of the blockage should be identified as closely as possible before taking further action.
1.6 GENERAL INFORMATION
BOILER PUMP
The boiler pump will operate briefly as a self-check once every
24 hours, regardless of system demand.
MINIMUM CLEARANCES
Clearance of 165 mm above, 100 mm below, 2.5 mm at the sides and 450 mm at the front of the boiler casing must be allowed for servicing.
BOTTOM CLEARANCE
Bottom clearance after installation can be reduced to 5 mm.
This must be obtained with an easily removable panel, to enable the system pressure gauge to be visible and to provide the 100 mm clearance required for servicing.
SERVICE REQUEST FUNCTION
When the boiler has been installed for more than 1 year the following message will appear on screen:
Service Due
2. Apply a hot water bottle, microwaveable heat pack or a warm damp cloth to the frozen blockage area. Several applications may have to be made before it fully defrosts.
Warm water can also be poured onto the pipe from a watering can or similar. DO NOT use boiling water.
3. Caution when using warm water as this may freeze and cause other localised hazards.
4. Once the blockage is removed and the condensate can flow freely, restart the appliance. (Refer to “To Start the boiler”)
5. If the appliance fails to ignite, call your Gas Safe Registered engineer.
Preventative Solutions
During cold weather, set the central heating temperature knob
(B) to “ MAX ”, (Remember to return to original setting once cold spell is over).
Place the heating on continuous and turn the room thermostat down to 15ºC overnight or when unoccupied. (Return to normal after cold spell).
SCAN for video
ESCAPE OF GAS
Should a gas leak or fault be suspected contact the
National Gas Emergency Service without delay.
Telephone 0800 111 999 .
Ensure that;
- All naked flames are extinguished.
- Do not operate electrical switches.
- Open all windows and doors.
CLEANING
For normal cleaning simply dust with a dry cloth. To remove stubborn marks and stains, wipe with a damp cloth and finish off with a dry cloth. DO NOT use abrasive cleaning materials.
MAINTENANCE
The frequency of servicing will depend upon the installation condition and usage but should be carried out at least annually by a Gas Safe Registered Engineer.
[ Telephone Number ]
Restart Menu Mode
Press “Restart” to clear this message.
User Guide 7
8
1.7 TROUBLESHOOTING
NO HOT WATER
Check the mains power is turned on and that the tap symbol is either blue or orange
Is water coming out of the hot water tap when turned on?
YES
NO
See boiler “Display Functions” section. If “Boiler off” is displayed then contact Ideal Customer
Services Helpline if your appliance is under warranty or a
Gas Safe Registered Engineer, if out of warranty
NO CENTRAL HEATING
Check the mains power is turned on and that the radiator symbol is either blue or orange
Check the programmer (internal or external to the boiler) is in an “ON” position and the room thermostat is turned up
Does the boiler operate and provide central heating?
YES
Check the time settings on the programmer are as you require and adjust if necessary
NO
NO HOT WATER OR CENTRAL
HEATING
Check the mains power is turned on and that the tap and radiator symbols are either blue or orange
Does the boiler have a display showing on the front control panel?
YES
See boiler “Display Functions” section
Contact a Gas Safe Registered
Engineer
NO
Contact a Gas Safe Registered
Engineer
Contact a Gas Safe Registered
Engineer
User Guide
1.8 DISPLAY FUNCTIONS - NORMAL OPERATION MODE
Off Mode
Normal Operation Screens
Winter Mode, DHW Demand
How to adjust Boiler
Temperatures
CH Knob Rotated
(without outside sensor connected)
Off
To Switch On
Press Mode Button & then On
Off
To Switch On
Press Mode Button & then On
Menu Mode
Summer Mode, No Heat Demand
Ready
Target 60°C
On
Preheat
Off
To Switch On
Press Mode Button & then On
Menu Mode
Summer Mode, DHW Demand
On at 60°C
Target 60°C
Ready
Radiator Target 60°C
Room Thermostat or
Timer Off
On
Preheat Menu Mode
Winter Mode, DHW & CH Demands
On at 60°C
Target 60°C
Ready
Radiator Target 60°C
Hot Water Priority
Off
Preheat Menu Mode
Winter Mode, CH Demand
Ready
Target 60°C
On at 60°C
Radiator Target 60°C
Set by Room Stat
On
Preheat Menu Mode
Winter Mode, Pre-heat Demand
Radiator Target
60°C
Back Menu
DHW Knob Rotated
Target
60°C
Back Menu
CH Knob Rotated
(outside sensor connected)
On at 60°C
Target 60°C
On
Preheat
Off
To Switch On
Press Mode Button & then On
Menu Mode
Winter Mode, No Heat Demand
On
Back
Room Temperature Target
20°C
Menu
Ready
Target 60°C
Off
Preheat
Ready
Radiator Target
60°C
Room Thermostat or
Timer Off
Menu Mode
Preheat Active
Switch Off at 60°C
Ready
Radiator Target 60°C
Room Thermostat or
Timer Off
On
Preheat Menu Mode
Boiler Frost Protection Service Required
Service Due
Boiler Frost Protection Active
Phone 01482 498660
Switch Off Temperature 19°C
Menu Mode Restart Menu Mode
The display scrolls through a maximum of 3 messages under any operational condition, as shown above
Note. The temperatures shown below are for illustration purposes only. The measured temperatures will be shown on the boiler.
User Guide 9
10
1.9 DISPLAY FUNCTIONS - FAULT MESSAGES
Overheat Lockout
1 With boiler off & system cold, fill system to 1.0 bar.
2 Bleed radiators, refill system to 1.0 bar.
3 Check radiator valves & boiler valves are
open.
4 Restart boiler.
5 If fault persists contact installer.
Restart Menu
Outside Sensor Fault
Contact Installer
Menu
Ignition Lockout
1 Check other gas appliances work.
2 Restart boiler.
3 If fault persists, contact installer.
Return Thermistor Fault
Contact Installer
Restart Menu Restart Menu
Flame Loss
Contact Installer
Fan Fault
Contact Installer
Menu
Too Many Restarts
Contact Installer
Menu
Flame On Before Gas On
Contact Installer
Menu
PCB Fault
Contact Installer
Menu
Low Mains Voltage
Contact electricity provider
Restart Menu
Flow Thermistor Fault
Contact Installer
Restart Menu
Menu
Low Water Pressure
1 With boiler off & system cold,
fill system to 1.0 bar.
2 Bleed radiators, refill system to 1.0 bar.
3 If fault persists, contact installer.
Menu
Room Thermostat Fault
Check room thermostat batteries
Menu
Spare PCB Not Set
Contact Installer
Menu
No Water Flow
1 With boiler off & system cold,
fill system to 1.0 bar.
2 Bleed radiators, refill system to 1.0 bar.
3 If fault persists, contact installer.
Menu
Pump Rotor Blocked
Contact Installer
Menu
Pump Dry Run
1 With boiler off & system cold,
fill system to 1.0 bar.
2 Bleed radiators, refill system to 1.0 bar.
3 If fault persists, contact installer.
Menu
Pump Fault
Contact Installer
Menu
User Guide
DHW Thermistor Fault
Contact Installer
Restart Menu
Gas Valve Fault
Contact electricity provider
Restart Menu
Blocked Flue/Condensate
1 Check if condensate pipe
blocked/frozen
2 Check if flue blocked
3 If fault persists, contact installer
Restart Menu
User Guide 11
In IE, the installation must be carried out by a Registered Gas
Installer (RGII) and installed in accordance with the current edition of I.S. 813 “Domestic Gas Installations”, the current Building
Regulations and reference should be made to the current ETCI rules for electrical installation.
or in IE a Registered Gas Installer (RGII).
, or in IE a Registered Gas Installer (RGII).
At Ideal Heating we take our environmental impact seriously, therefore when installing any Ideal Heating product please make sure to dispose of any previous appliance in an environmentally conscious manner. Households can contact their local authority to find out how.
See https://www.gov.uk/managing-your-waste-an-overview for guidance on how to efficiently recycle your business waste.
Technical Training
Our Expert Academy offer a range of training options designed and delivered by our experts in heating.
For details please contact: expert-academy.co.uk
Ideal Boilers Ltd., pursues a policy of continuing improvement in the design and performance of its products.
The right is therefore reserved to vary specification without notice.
Ideal is a trademark of Ideal Boilers.
Registered Office
Ideal Boilers Ltd., National Avenue, Hull, East Yorkshire, HU5 4JB
Tel 01482 492251 Fax 01482 448858
Registration No. London 322 137
EU Authorised Representative:
Atlantic SFDT
44 Boulevard des Etats-Unis, 85 000 La Roche-Sur-Yon, France
+33 (0)2 51 44 34 34
Ideal Technical Helpline: 01482 498663
Ideal Consumer Helpline: 01482 498660
Ideal Parts: 01482 498665 idealheating.com
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Key Features
- Condensate drain for efficient water removal
- Safe handling features ensure user protection
- Optional accessories enhance functionality and convenience
Related manuals
Frequently Answers and Questions
What is the rated heat output of Ideal C24?
What is the minimum flow rate required for the boiler?
What is the maximum operating pressure for the boiler?
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Table of contents
- 6 Section 1 - General
- 8 1.1 Introduction
- 8 1.2 Operation
- 8 Safe Handling
- 8 Optional Accessories
- 9 1.5 Safety
- 9 Safe Handling of Substances
- 9 Location of Boiler
- 10 Air Supply
- 10 Gas Supply
- 10 1.10 Water Circulation System
- 10 Boiler Controls
- 10 1.12 Electrical Supply
- 10 1.13 Condensate Drain
- 11 1.14 Boiler Dimensions, Services & Clearances
- 12 1.15 System Requirements - Central Heating
- 13 1.16 System Requirements - DHW
- 13 1.17 System Balancing
- 13 1.18 Water Treatment
- 14 Section 2 - Installation
- 14 Boiler Assembly - Exploded View
- 15 2.2 Unpacking
- 16 Wall Mounting Template
- 16 Preparing the Wall
- 16 Fitting the Wall Mounting Plate
- 16 Mounting the Boiler
- 17 Flues and Locations
- 18 Flues and Locations - Continued
- 19 Horizontal Flue Positions
- 19 2.10 Vertical Flue Positions
- 20 Flue System Dimensions
- 20 2.12 Fitting the Turret
- 21 2.13 Cutting the Flue
- 22 2.14 Assembling the Vertical Flue
- 23 2.15 Condensate Drain
- 24 2.16 Condensate Drain - Cont
- 25 2.17 Connections & Filling
- 26 2.18 Connections & Filling Cont
- 27 2.19 Electrical Connections
- 27 2.20 Installer Wiring
- 28 2.21 External Wiring
- 29 2.22 Wiring Diagram
- 30 2.23 Replacing Pre-Fitted Mains Cable
- 30 2.24 Commissioning and Testing
- 31 2.25 Initial Lighting
- 32 2.26 User Interface Commissioning
- 32 2.27 Changing Boiler Operating Mode
- 32 2.28 Preheat Function
- 32 2.29 Intelligent Preheat Function
- 33 2.30 Menu Operation
- 33 2.31 Setting Maximum and Minimum Rates
- 34 2.32 General Checks
- 35 2.33 Restart Procedure
- 35 2.34 Handing Over
- 36 Section 3 - Servicing
- 36 Servicing Schedule
- 37 Removal / Replacement of Components
- 37 Draining the Boiler
- 38 Boiler Front Panel Removal / Replacement
- 38 Flue Manifold Removal/Replacement
- 39 Fan and Venturi Assembly Removal and Cleaning
- 40 Burner Removal and Cleaning
- 40 Cleaning the Heat Exchanger
- 41 Ignition / Detection Electrode Replacement / Inspection
- 41 3.10 Cleaning the Condensate Trap
- 42 Burner Injector Replacement
- 42 3.12 DHW Filter & DHW Flow Regulator Cleaning/Replacement
- 42 3.13 External System Filter Cleaning Guide
- 43 3.14 Burner Replacement
- 43 3.15 Return Thermistor Replacement
- 43 3.16 Spark Generator Replacement
- 44 3.17 Gas Control Valve Replacement
- 44 3.18 Diverter Valve Actuator Replacement
- 44 3.19 Condensate Trap Replacement / Cleaning
- 45 3.20 Primary PCB Replacement
- 46 3.21 DHW Flow Turbine Sensor Replacement
- 46 3.22 Pressure Gauge Replacement
- 47 3.23 PRV Replacement
- 47 Pump Automatic Air Vent Replacement
- 48 3.25 Replacement of DHW Thermistor
- 48 3.26 DHW Plate Heat Exchanger Replacement
- 49 3.27 Diverter Valve Body Assembly Replacement
- 50 3.28 Pump Head Replacement
- 50 3.29 CH Water Pressure Switch Replacement
- 51 3.30 Flow Thermistor Replacement
- 52 3.31 Heat Engine Replacement
- 53 3.32 Expansion Vessel Recharging & Replacement
- 54 Section 4 - Fault Finding
- 54 Main Menu, Fault Help
- 54 Overheat Lockout
- 55 Ignition Lockout
- 55 Flame On Before Gas Valve On
- 55 Low Water Pressure
- 56 Flame Loss
- 56 Fan Fault
- 57 Flow Thermistor Fault
- 57 Return Thermistor Fault
- 58 4.10 Outside Sensor Fault
- 58 No CH Operation but DHW works OK
- 59 4.12 No DHW but CH Works OK
- 60 4.13 No Display
- 60 4.14 DHW Thermistor Fault
- 61 Section 5 - Spare Parts
- 62 Section 6 - Benchmark to Commissioning
- 72 1.2. Boiler Operation
- 74 1.3 System Water Pressure
- 74 1.4 Points for the boiler user
- 75 1.5 Frozen Condensate Drain
- 75 1.6 General Information
- 76 1.7 Troubleshooting
- 77 1.8 Display Functions - Normal Operation Mode
- 78 1.9 Display Functions - Fault messages