iNSTALLATioN AND SERViciNg
INSTALLATION
AND SERVICING
Logic+ SYSTEM
15 18 24 30
For Users Guide see reverse of book
For details of document amendments, refer to page 3
When replacing any part on this appliance, use only spare parts that you can be
assured conform to the safety and performance specification that we require.
Do not use reconditioned or copy parts that have not been clearly authorised by Ideal.
For the very latest copy of literature for specification and maintenance practices visit our
website www.idealboilers.com where you can download the relevant information in PDF format.
May 2014
UIN 206025 A06
2
Ideal Logic + System - Installation and Servicing
Notes for the installer
For any technical queries please ring the
ideal installer helpline : 01482 498704
NOTE. BOILER RESET PROCEDURE To reset boiler, turn mode knob to reset position and immediately turn knob back to required setting.
The boiler will repeat the ignition sequence if a heat demand is present.
DOCUMENT amendments
Relevant Installation changes implemented in this book from Mod Level........ A05 (Jan 14) to A06 (May 14)
Cover Pages
Re-brand outer covers
Page 11
Paragraph 4b updated.
Ideal Stelrad Group reserve the right to vary specification without notice
Ideal Logic + System - Installation and Servicing
3
general
Table 1 - General Data
Ideal Logic + System
151824 30
Gas supply
2H - G20 - 20mbar
Gas Supply Connection
15mm copper compression
Injector Size
(mm)
4.15
4.15
4.15
4.65
Flow Connection
Central Heating
22mm copper compression
Return Connection
Central Heating
22mm copper compression
Flue Terminal Diameter
mm (in)
100 (4)
Average Flue Temp-Mass Flow Rate
56oC - 6g/s
58ºC - 8 g/s 63oC - 10g/s 69oC - 13g/s
Maximum Working Pressure (Sealed Systems)
bar (lb/in2)
2.5 (36.3)
Electrical Supply
230 V ~ 50 Hz.
Power Consumption
W
126
131
146
152
Fuse RatingExternal : 3A Internal : T4H HRC L250 V
Water content
litre (gal)
1.2 (0.26)
Packaged Weight
kg (lb)
34.5 (76)
34.5 (76)
34.5 (76)
34.5 (76)
Maximum Installation Weight
kg (lb)
28 (61.7)
28 (61.7)
28 (61.7)
28 (61.7)
Boiler Casing Size
Height
mm (in)
700 (27.5)
Width
mm (in)
395 (15.5)
Depth
mm (in)
278 (11)
Table 2 - Performance Data - Central Heating
1518
MIN
24
30
MAX MIN
MAX
MIN MAX
MIN
MAX
15.1
18.1
4.9
6.1
30.4
Boiler Input :
Boiler Input ‘Q’
Nett CV
kW
Gross CV
4.9
4.9
24.3
(Btu/h) (16,600) (51,520)(16,600) (61,800) (16,600) (82,900) (20,700) (103.600)
kW
5.4
16.6
5.4
20.1
5.4
27.0
6.7
33.7
(Btu/h) (18,400) (56,800)(18,400) (68,600) (18,400) (92,000) (23,000) (115,000)
m3/h0.500
Gas Consumption
1.537 0.500 1.872 0.500 2.512
(ft3/h)(17.8)
(54.7) (17.8) (66.1) (17.8) (89)
0.622 3.135
(22)
(111)
6.1
30.3
Boiler Output :
Non Condensing kW
70oC Mean Water temp.
(Btu/h)
Condensing
40oC Mean Water temp.
4.8
15.0
(16,500)
kW5.1
(Btu/h)
(17,500)
4.8
(51,300) (16,500)
18.0
4.8
24.2
(61,600)
(16,500)
(82,600)
15.9 5.1
(54,250) (17,500)
19.1
(65,100)
5.1 25.6
(17,500)
(87,400)
(20,700) (103,300)
6.4
Seasonal efficiency* SEDBUK 2005
91.1%
91%
91%
91.1%
Seasonal efficiency* SEDBUK 2009
89.3%
89.2%
89.5%
89.6%
NOx Classification
31.0
(21,800) (105,800)
CLASS 5
* 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 have been certified by a notified body.
Note. Gas consumption is calculated using a
calorific value of 38.7 MJ/m3 (1038 Btu/ft3) gross
or 34.9 MJ/m3 (935 Btu/ft3) 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/m3)
b. For ft3/h - divide the gross heat input (Btu/h)
by the gross C.V. of the gas (Btu/ft3)
c. For m3/h - multiply l/s by 3.6.
4
Key to symbols
GB = United Kingdom
IE = Ireland
(Countries of destination)
PMS=Maximum operating pressure of water
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.
I2H
=An appliance designed for use on 2nd Family gas, Group H only.
Ideal Logic + System - Installation and Servicing
general
IDEAL LOGIC + SYSTEM
Natural Gas only
Boiler sizeG.C. Appliance No.PI No.
(Benchmark No.)
15
18
24
30
41-750-29
41-750-30
41-750-31
41-750-32
Destination Country:
86 CL 08
86 CL 08
86 CL 08
86 CL 08
GB, IE
Contents
Air Supply ....................................................................... 9
Benchmark Commissioning Checklist ...................... 56
Boiler Clearances ........................................................ 10
Boiler Exploded Diagram ............................................ 13
Condensate Drain ................................................... 24,25
Commissioning & Testing .......................................... 30
Electrical Connections ................................................ 27
Electrical Supply ........................................................... 9
Fault Finding ........................................................... 48-52
Flue Fitting ................................................................... 17
Flue Installation ............................................................. 8
Gas Safety Regulations ................................................ 7
Gas Supply ..................................................................... 8
Initial Lighting ............................................................. 31
Installation .. ............................................................ 13-32
Pump ............................................................................ 46
Safe Handling .. ............................................................... 6
Servicing ................................................................. 33-48
Spare Parts Info ........................................................... 53
Thermostatic Radiator Valves ...................................... 9
Water and Systems ............................................ 9,11-12
Water Connections ................................................. 10,26
Water Treatment ......................................................... 12
Wiring Diagram ............................................................ 29
For GB, to comply with Building Regulations Part L1 (Part 6 in Scotland) the boiler should be fitted in accordance with the
manufacturer’s instructions. 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
Boiler
Page
Make and model.......................................................... 5
Appliance serial no. on data badge ........... Front Cover
SEDBUK No. %........................................................... 4
Controls
Time and temperature control to heating.................. 27
Time and temperature control to hot water ............ N/A
Heating zone valves.................................................. 27
TRV’s.......................................................................... 9
Auto bypass................................................................ 9
Boiler interlock............................................................. 9
For ..................................................................... all boilers
Flushing to BS.7593.................................................. 12
Inhibitor..................................................................... 12
Central heating mode
Heat input....................................................to be calculated
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............................................................ 12
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................................................. 24,25
For all boilers: complete, sign & hand over to customer
For assistance see Technical Helpline on the back page
NOTE TO THE INSTALLER: COMPLETE
THE BENCHMARK COMMISSIONING
CHECKLIST AND LEAVE THESE
INSTRUCTIONS WITH APPLIANCE
Ideal Logic + System - Installation and Servicing
5
general
INTRODUCTION
The Logic + System range of boilers are wall mounted, full
sequence, automatic spark ignition, low water content, fanned
flue, high efficiency, condensing, system gas boilers.
During all manoeuvres and handling actions, every attempt should
be made to ensure the following unless unavoidable and/or the
weight is light.
Note. Due to the high efficiency of the boiler a plume of water
vapour will form at the terminal during operation.
•
•
•
•
•
•
•
Central heating (CH) output is fully modulating with a range of:
15
4.8 to 15kW (16,500 to 51,300 Btu/h)
18
4.8 to 18kW (16,500 to 61,600 Btu/h)
24
4.8 to 24.2kW (16,500 to 82,600 Btu/h)
30
6.1 to 30.3kW (20,700 to 103,300 Btu/h)
The boiler is supplied fully assembled with circulating pump,
pressure gauge, safety valve and CH expansion vessel.
A variable CH temperature control is fitted on the user control.
The boiler includes as standard:
-
Boiler frost protection
-
Daily pump exercise.
Note. The appliance must be wired with a permanent live supply,
or the boiler frost protection will not operate. The boiler warranty
will be invalid if this requirement is not complied with.
The boiler casing is of white painted mild steel.
The boiler temperature control is 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.
operation
When there is a demand for CH, the heating system is supplied at
the selected temperature of between 30oC and 80oC.
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.
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.
6
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.
Optional extra kits
•
•
•
•
Horizontal Flue Terminal (600mm long)
Horizontal Flue Terminal (1000mm long)
Horizontal Flue Telescopic
Flue Extension Ducts(1000mm long)
15-up to 9m
18-up to 9m
24-up to 9m
30-up to 8m
• 90o Elbow Kit (maximum per installation).
15-up to 6 elbows
18-up to 6 elbows
24-up to 6 elbows
30-up to 6 elbows
• 45o Elbow Kit (maximum per installation).
15-up to 6 elbows
18-up to 6 elbows
24-up to 6 elbows
30-up to 6 elbows
• Roof Flue Kit (to a maximum of 7.5m)
• Powered Vertical Flue Kit (5m primary and 17m secondary
is a typical maximum length. For alternative details refer to
Powered Vertical Instructions)
• Flue Finishing Kit
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
High Level Flue Outlet Kit
Flue Deflector Kit
Adjustable Flue Support Bracket
Balcony Flue Kit
Raised Horizontal Flue Outlet Kit
Concentric Flue Screw Retaining Kit
Weather Collar (Universal)
Weather Collar (Flat Roof)
Stand-Off Kit
Stand-Off Kit (inc. pipes)
Pre-Piping Frame Kit
Condensate Pump Kit
Weather Compensation Kit
Security Bracket Kit
PRV Wall Outlet Kit
Pressure Gauge Extension Kit
Ideal Logic + System - Installation and Servicing
general
Safety
Location of boiler
Current Gas Safety (installation and use) regulations or rules
in force:
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 appliance is suitable only for installation in GB and IE and
should be installed in accordance with the rules in force.
In GB, the installation 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
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.
For electrical safety reasons there must be no access available
from the back of the boiler.
• The appropriate Building Regulations either The Building
Regulations, The Building Regulations (Scotland), Building
Regulations (Northern Ireland).
The boiler must not be fitted outside.
• The Water Fittings Regulations or Water byelaws in Scotland.
If the boiler is to be fitted in a timber framed building it should be
fitted in accordance with the Institute of Gas Engineering document
IGE/UP/7:2006 - Edition 2.
• The Current I.E.E. Wiring Regulations.
Where no specific instructions are given, reference should be
made to the relevant British Standard Code of Practice.
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.
Detailed recommendations are contained in the following British
Standard Codes of Practice:
BS. 5440:1 Flues (for gas appliances of rated input not exceeding 70 kW).
BS. 5440:2 Ventilation (for gas appliances of rated input not
exceeding 70 kW).
BSEN. 12828:2003 Heating Systems in buildings: Design for
water based heating systems.
Timber Framed Buildings
Bathroom Installations
This appliance is rated IP20.
The boiler may be installed in any room or internal space, although
particular attention is drawn to the requirements of the current
IEE (BS.7671) Wiring Regulations and the electrical provisions
of the building regulations applicable in Scotland, with respect to
the installation of the boiler in a room or internal space containing
a bath or shower. For IE reference should be made to the current
ETCI rules for electrical installations and I.S. 813:2002.
If the appliance is to be installed in a room containing a bath or
shower then, providing water jets are not going to be used for
cleaning purposes (as in communal baths/showers), the appliance
must be installed beyond Zone 2, as detailed in BS.7671.
Ceiling
BSEN 12831:2003 Heating Systems in buildings: Method for
calculation of the design heat load.
BSEN 14336:2004
Heating Systems in buildings: Installation
and commissioning of water based heating
systems.
BS. 5546
Installation of gas hot water supplies for domestic
purposes (2nd Family Gases)
BS. 6798
Installation of gas fired hot water boilers of rated
input not exceeding 70 kW.
BS. 6891
Low pressure installation pipes.
Recessed
window
Zone 2
2.25m
Zone 1
0.6m
Health & Safety Document No. 635.
The Electricity at Work Regulations, 1989.
Zone 0
The manufacturer’s notes must NOT be taken, in any way, as
overriding statutory obligations.
IMPORTANT. These appliances are CE certificated for safety
and performance. It is, therefore, important that no external
control devices, e.g. flue dampers, economisers etc., are
directly connected to these appliances unless covered by
these Installation and Servicing Instructions or as otherwise
recommended by Ideal Stelrad Group in writing. If in doubt
please enquire.
Any direct connection of a control device not approved by
Ideal Stelrad Group could invalidate the certification and the
normal appliance warranty. It could also infringe the Gas Safety
Regulations and the above regulations.
SAFE HANDLING OF SUBSTANCES
No asbestos, mercury or CFCs are included in any part of the
boiler or its manufacture.
Ideal Logic + System - Installation and Servicing
3G8913a
Compartment Installations
A compartment used to enclose the boiler should be designed and
constructed specially for this purpose.
An existing cupboard or compartment may be used, provided that
it is modified for the purpose.
In both cases, details of essential features of cupboard /
compartment design, including airing cupboard installation, are to
conform to the following:
• BS 6798 (No cupboard ventilation is required - see ‘Air Supply’
for details).
• The position selected for installation MUST allow adequate
space for servicing in front of the boiler.
• For the minimum clearances required for safety and
subsequent service, see the wall mounting template and
Frame 1. In addition, sufficient space may be required to
allow lifting access to the wall mounting plate.
7
general
GAS SUPPLY
The local gas supplier should be consulted, at the installation
planning stage, in order to establish the availability of an adequate
supply of gas. An existing service pipe must NOT be used without
prior consultation with the local gas supplier.
The boiler MUST be installed on a gas supply with a governed
meter only.
A gas meter can only be connected by the local gas supplier or
by a Gas Safe Registered Engineer. In IE by a Registered Gas
Installer (RGII).
An existing meter should be checked, preferably by the gas
supplier, to ensure that the meter is adequate to deal with the rate
of gas supply required.
It is the responsibility of the Gas Installer to size the gas
installation pipework in accordance with BS6891:2005. Whilst
the principle of the 1:1 gas valve ensures the Logic range is
able to deliver it’s full output at inlet pressures as low as 14mb,
other gas appliances in the property may not be as tolerant.
When operating pressures are found to be below the minimum
meter outlet of 19mb 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 BS 6400-1 Clause 6.2 Pressure
Absorption).
4. Where the lowest part of the terminal is fitted less than 2m
(6’6”) above a balcony, above ground or above a flat roof
to which people have access then the terminal MUST be
protected by a purpose designed guard.
Terminal guards are available from boiler suppliers. (Ask for
TFC flue guard model no. K6 - round, plastic coated). In case
of difficulty contact:
TFC Group Ltd.
Tel. + 44 (0) 01732 351 680
Tower House, Vale Rise
Fax. + 44 (0) 01732 354 445
Tonbridge. Kent TN9 1TB
www.tfc-group.co.uk
Ensure that the guard is fitted centrally.
5. The flue assembly shall be so placed or shielded as to prevent
ignition or damage to any part of any building.
6. The air inlet/products outlet duct and the terminal of the boiler
MUST NOT be closer than 25mm (1”) to combustible material.
Detailed recommendations on the protection of combustible
material are given in BS. 5440-1:2008.
IMPORTANT. It is essential to ensure, in practice, that products
of combustion discharging from the terminal cannot re-enter the
building or buildings through any openings into the building such
as ventilators, windows, doors, or other sources of natural air
infiltration, such as forced ventilation openings etc.
If products of combustion re-entry is identified or suspected this
should be immediately investigated and corrected following the
guidance provided in the current Gas Industry Unsafe Situation
Procedure.
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.
Table 4 - Balanced Flue Terminal Position
Flue Terminal Positions
Important.
Installation pipes must be fitted in accordance with BS.6891. In IE
refer to IS.813:2002.
The complete installation MUST be tested for gas tightness and
purged as described in the above code.
Flue installation
Pluming will occur at the terminal so terminal positions where this
could cause a nuisance should be avoided.
The flue must be installed in accordance with the
recommendations of BS. 5440-1: 2008.
In IE refer to I.S. 813:2002.
The following notes are intended for general guidance:
1. The boiler MUST be installed so that the terminal is exposed
to external air.
2. It is important that the position of the terminal allows the free
passage of air across it at all times.
3. Minimum acceptable spacing from the terminal to obstructions
and ventilation openings are specified in Table 4.
8
Min. Spacing*
1. Directly below, above or alongside an opening
window, air vent or other ventilation opening.
300mm (12”)
2. Below guttering, drain pipes or soil pipes.
BS5440-1 2008
25mm ( 1”)*
75mm (3”)
3. Below eaves.
BS5440-1 2008
25mm (1”)*
200mm (8”)
4. Below balconies or a car port roof.
BS5440-1 2008
25mm (1”)*
200mm (8”)
5. From vertical drain pipes or soil pipes.
BS5440-1 2008
25mm (1”)*
150mm (6”)
6. From an internal or external corner or to a boundary along side the terminal. BS5440-1 2008
25mm (1”)*
300mm (12”)
7. Above adjacent ground, roof or balcony level.
300mm (12”)
8. From a surface or a boundary facing the terminal.600mm (24”)
9. From a terminal facing a terminal. 1,200mm (48”)
10. From an opening in a car port
(e.g. door or window) into dwelling. 1,200mm (48”)
11. Vertically from a terminal on the same wall. 1,500mm (60”)
12. Horizontally from a terminal on the wall.
300mm (12”)
Vertical Terminals
13. Above the roof pitch with roof slope of all angles.300mm (12”)
Above flat roof. 300mm (12”)
14. From a single wall face.
From corner walls.
300mm (12”)
300mm (12”)
15. Below velux window 2000mm (79”)
16. Above or side of velux window
600mm (24”)
* Only one reduction down to 25mm is allowable per installation
otherwise BS5440-1 2008 dimensions must be followed.
Ideal Logic + System - Installation and Servicing
general
Terminal
The terminal assembly can be adapted to accommodate various
wall thicknesses. Refer to Frame 8 .
Air supply
It is NOT necessary to have a purpose-provided air vent in the
room or internal space in which the boiler is installed. Neither
is it necessary to ventilate a cupboard or compartment in which
the boiler is installed, due to the low surface temperatures of the
boiler casing during operation; therefore the requirements of BS
6798, Clause 12, and BS 5440:2 may be disregarded.
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 BS.6798
and, in addition, for smallbore and microbore systems, BS.5449.
Water treatment - see Frame 4
Boiler Control Interlocks
Central heating systems controls should be installed to ensure
the boiler is switched off when there is no demand for heating, in
compliance with Building Regulations.
Heating systems utilising full thermostatic radiator valve control
of temperature in individual rooms should also be fitted with a
room thermostat controlling the temperature in a space served by
radiators not fitted with such a valve.
When thermostatic radiator valves are used, the space heating
temperature control over a living / dining area or hallway having
a heating requirement of at least 10% of the minimum boiler heat
output should be achieved using a room thermostat, whilst other
rooms are individually controlled by thermostatic radiator valves.
However, if the system employs thermostatic radiator valves on all
radiators, or two port valves, then a bypass circuit must be fitted
with an automatic bypass valve to ensure a flow of water should
all valves be in the closed position.
Electrical supply
Warning.
This appliance must be earthed.
Wiring external to the appliance MUST be in accordance with
the current I.E.E. (BS.7671) Wiring Regulations and any local
regulations which apply. For IE reference should be made to the
current ETCI rules for electrical installations.
The mains supply to the boiler and system wiring centre shall be
through one common fused double pole isolator. For new heating
systems, and where practicable replacement boiler installations,
the isolator shall be situated adjacent to the appliance.
Condensate drain
Refer to Frames 21, 22 & 39
A condensate drain is provided on the boiler. This drain must be
connected to a drainage point on site. All pipework and fittings in
the condensate drainage system MUST be made of plastic - no
other materials may be used.
Important.
Any external runs must be in accordance with BS 6798.
The drain outlet on the boiler is sized for standard 21.5mm (3/4”)
overflow pipe. It is a universal fitting to allow use of different
brands of pipework.
Ideal Logic + System - Installation and Servicing
9
general
1boiler dimensions, services & clearances
The boiler connections are made on the boiler connection tails.
Refer to Frame 23.
The following minimum clearances must be maintained for
operation and servicing.
Additional space will be required for installation, depending upon
site conditions.
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
2.5
from case
2.5
all dimensions in mm
wall thicknesses do not exceed 600mm (24”). Where the
space into which the boiler is going to be installed is less
than the length of flue required the flue must be fitted from
the outside.
Installation from inside ONLY
b. If a core boring tool is to be used inside the building the
space in which the boiler is to be installed must be at least
wide enough to accommodate the tool.
395
Side flue
dim. A
700
43
122
38
104
Front clearance
The minimum front clearance when built in to a cupboard is 5mm
from the cupboard door but 450mm overall clearance is still
required, with the cupboard door open, to allow for servicing.
* Bottom clearance
Gas Inlet
10
Bottom clearance after installation can be reduced to 5mm.
This must be obtained with an easily removable panel, to enable
the consumer to view the system pressure gauge, and to provide
the 100mm clearance required for servicing.
Ideal Logic + System - Installation and Servicing
general
2
system requirements - Central Heating
Notes
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.
Safety valve settingbar
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.
System pre-charge pressurebar
General
Vessel charge pressure
bar
3.0
0.5 to 0.75
System volume
(litres)
None
1.0
Expansion vessel
volume (litres)
25
1.61.8
50
3.13.7
2. The installation should be designed to work with flow
temperatures of up to 86 oC.
75
4.75.5
100
6.37.4
3. All components of the system must be suitable for a working
pressure of 3 bar and temperature of 110 oC. Extra care should
be taken in making all connections so that the risk of leakage is
minimised.
125
7.89.2
150
9.411.0
175
10.912.9
190
11.914.0
200
12.514.7
250
15.618.4
300
18.822.1
1. The installation must comply with all relevant national and local
regulations.
The following components are incorporated within the appliance:
a. Circulating pump.
b. Safety valve, 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.
For other system volumes
multiply by the factor across
0.0630.074
4. ‘Make-up’ Water. Provision must be made for replacing water
loss from the system, either :
a. From a manually filled ‘make-up’ vessel with a readily visible
water level. The vessel should be mounted at least 150mm
above the highest point of the system and be connected
through a non-return valve to the system, fitted at least
150mm below the ‘make-up’ vessel on the return side of
the radiators. or
b. Where access to a ‘make-up’ vessel would be difficult, by
pre-pressurisation of the system.
The maximum cold water capacity of the system should
not exceed 143 litres. This is the maximum system
volume for the boiler expansion vessel. If the capacity of
the vessel is not considered sufficient for this, or for any
other reason, an additional vessel must be installed on
the return to the boiler.
Guidance on vessel sizing is given in table opposite.
Model15
18
Water flow rate l/min 10.7
13
17.2
21.5
(gal/min)(2.4) (2.8) (3.8) (4.7)
o
C20
Temp differential
o
( F)(36)
Head available m.w.g.
5
for system
(ft.w.g.) (16.2)
20
(36)
4.5
(14.7)
20 20
(36 (36)
3.3
(10.8)
1.9
(6.2)
Mains
water supply
The system may be filled by the following method:
CH Return
Hose unions
This may involve the fitting of an additional WRAS approved
isolator valve to the mains supply.
Additional
stop valve
i. Thoroughly flush out the whole system with cold water.
ii. Fill and vent the system until the pressure gauge registers 1.5
bar, and examine for leaks.
iii. Check the operation of the safety valve by raising the water
pressure until the valve lifts. This should occur within 0.3 bar
of the preset lift pressure.
30
Max CH uutput
kW
15
18
24.2
30.3
(Btu/h) (51,300) (61,600) (82,600)(103,300)
5.Filling
Through a temporary hose connection from a ‘draw-off’ tap,
supplied from a service pipe under mains pressure. Where the
mains pressure is excessive, a pressure reducing valve must be
used to facilitate filling. When installing the filling device, it must
be connected as below to fully comply with the water regulations.
24
Temporary hose
(disconnect after filling)
Ecl 6053
Double check valve
assembly
(note direction of flow)
iv. Release water from the system until the minimum system
design pressure is reached; 1.0 bar if the system is to be prepressurised.
Ideal Logic + System - Installation and Servicing
11
general
3
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. See
note regarding thermostatic radiator valves on page 9.
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.
Close the manual or thermostatic valves on all radiators,
leaving the twin lockshield valves (on the radiators referred
to above) in the open position.
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.
2. Open all manual or thermostatic radiator valves and adjust
the lockshield valves on the remaining radiators, to give
around 20oC temperature drop at each radiator.
3. Adjust the room thermostat and programmer to normal
settings.
4water treatment
Central Heating
The Logic + System 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 Stelrad Group
Invalid.
Ideal Stelrad Group recommend Water Treatment in
accordance with the Benchmark Guidance Notes on Water
Treatment in Central Heating Systems.
If water treatment is used Ideal Stelrad Group
recommend only the use of Scalemaster Gold 100,
Fernox, MBI, ADEY MC1 or Sentinel X100 inhibitors and
associated water treatment products, which must be used
in accordance with the manufacturers’ instructions.
Notes.
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. BS 7593:2006 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.
For further information contact:
Fernox Cookson Electronics
Forsyth Road
Sheerwater
Woking
Surrey GU21 5RZ
+44 (0) 0870 601 5000
Sentinel Performance Solutions
The Heath Business & Technical Park
Runcorn
Cheshire WA7 4QX
Tel: 0800 389 4670
www.sentinel-solutions.net
Scalemaster Water Treatment Products
Emerald Way
Stone
Staffordshire ST15 0SR
Tel: +44 (0) 1785 811636
Calmag Ltd.
Unit 3-6, Crown Works
Bradford Road
Sandbeds, Keighley
West Yorkshire BD20 5LN
Tel: +44 (0) 1535 210 320
Adey Professional Heating Solutions
Gloucester Road,
Cheltenham GL51 8NR
Tel: +44 (0) 1242 546700
4. Under no circumstances should the boiler be fired
before the system has been thoroughly flushed.
12
Ideal Logic + System - Installation and Servicing
5 boiler assembly - exploded view
Note that item numbers are linked to the spares list
104
CH RETURN VALVE
105
CH FLOW VALVE
108
PUMP HEAD
110
Pump Auto Air Vent
113
PRESSURE RELIEF VALVE
114
PIPE - PRV OUTLET
115
PIPE - FLOW
116
PIPE - RETURN
117
PIPE - EXPANSION VESSEL
118
EXPANSION VESSEL
120
FLOW GROUP MANIFOLD
121 By-Pass Kit
131
WATER PRESSURE TRANSDUCER
135 PRESSURE GAUGE
136 Safety Valve Drain Pipe
203
GAS COCK
204
PIPE - GAS INLET
205
GAS VALVE
206
PIPE - GAS INJECTOR
211
INJECTOR ASSEMBLY
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
SIPHON TRAP
231
CONDENSATE OUTLET CONNECTION
301
CONTROLS BOX FIXINGS HINGE & SPRING
302
PRIMARY PCB*
303
CUI BOARD
504
304
CONTROL THERMISTOR (RETURN)
306
ELECTRODE IGNITION
307
ELECTRODE DETECTION
308
IGNITER UNIT
309
THERMISTOR CONTROL/NO FLOW
313
IGNITION LEAD
314
CONTROL BOX LENS
324
CONTROLS BOX LID
325
CONTROL BOX FRONT
401
HEAT ENGINE
503
WALL MOUNTING BRACKET 504
FRONT PANEL 505
FASCIA 506
BRACKET - GAS VALVE 507
BRACKET - EXPANSION VESSEL
* Note that production boiler PCBs are factory
pre-set to operate for boiler range and output,
but when ordering Primary PCB as a spare, an
additional Boiler Chip Card (BCC) MUST also
be purchased for your specific boiler range and
output.
227
224
503
505
313
218
217
507
309
215
306
211
118
401
308
304
214
307
136
506
206
113
116 301
115
131
228
205
219 304
120
110
229
204
231
114
303
117
121
105
223
108
135
203
104
324
314
BCC
325
Ideal Logic + System - Installation and Servicing
302
206025-10142
13
INSTALLATION
INSTALLATION
INSTALLATION
INSTALLATION
6
unpacking
The boiler is supplied fully assembled in Pack A. A telescopic or non-telescopic flue assembly for rear or side flue outlet in Pack B
is suppled as a separate order.
Unpack and check the contents.
Pack A Contents
ABoiler
B Hardware Pack Box
C Wall Mounting Plate
D These Installation/Users Instructions
E Wall Mounting Template
(located on internal protective packaging)
F Turret Clamp
G Safety Valve Drain Pipe
H Boiler Guarantee & Registration Pack
A
E
B
C
F
D
H
FLUE OUTLET
G
14
Boiler Guarantee
HARDWARE PACK CONTENTS
Gas Valve Pack
1. Pipe - Gas Inlet
2. Washer - Gas (blue)
3. Gas Cock
Return Valve Pack
1. Pipe CH Return
2. Washer CH
3. Valve Return
Accessory Pack
1. Screw (x2)
2. Wallplug (x2)
3. Turret Clamp Screw (x1)
Flow Valve Pack
1. Pipe CH Flow
2. Washer CH
3. Valve Flow (with gauge)
Gas Valve Pack
3
Accessory Pack
1
1
3
2
2
Return Valve Pack
3
Flow Valve Pack
3
1
1
2
2
Ideal Logic + System - Installation and Servicing
INSTALLATION
unpacking....Cont’d
INSTALLATION
7
Note. This flue system incorporates a removable flue outlet nose that utilises a push fit location system. This enables the
installation of deflector, high level or balcony outlet flue kits without the removal of the whole ‘B’ pack terminal. The appliance
must not be operated without the desired outlet nose correctly fitted in place.
Note. Location dimples must be aligned with terminal mounting frame.
Pack B Contents Non-Telescopic
A
Flue terminal
B
Flue turret
C
Rubber terminal wall seal
D
Cutting Aid
E
Wall Seal (white)
D
E
A
B
C
Pack B Contents Telescopic
A
Telescopic flue terminal
B
Flue turret
C
Rubber terminal wall seal
DScrew
E
Sealing Tape
F
Wall Seal (white)
B
F
A
D
C
E
8front panel removal
1
1. Loosen the 2 screws retaining the front panel.
2
2. Pull the two spring clips downwards to disengage.
3. Pull the front panel forward and upwards to remove.
Ideal Logic + System - Installation and Servicing
15
INSTALLATION
9
wall mounting template
Extended centre line
155
(200)
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
“A” - See Diagram in
Frame 1
Care MUST be taken to ensure the correct holes are drilled.
1. Tape template into the required position, ensuring its squareness
by hanging a plumbline as shown.
2. If fitting a side flue, extend the flue centreline onto the side by
155mm on a standard wall fix or 200mm 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.
0139
52-1
2055
10 preparing the wall
Important.
Ensure that, during the cutting operation, masonry falling
outside of the building does not cause damage or personal
injury.
FLUE OUTLET
2. Drill 2 mounting holes (marked from template) with a 7.5mm
/ 8mm masonry drill and insert the plastic plugs, provided,
for the wall mounting plate.
Rear flue only
5" diameter hole
Side flue only
5" diameter hole
X
Section
through wall
3. Locate 2 No.14 x 50mm 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.
Note. Check all of the hole
positions before drilling.
11 Fitting the Wall Mounting Plate
12 Mounting the Boiler
3G9495
1. Cut the flue hole (preferably with a 5” core boring tool),
ensuring that the hole is square to the wall.
Both wall faces immediately around the cut hole should be
flat.
Screw the wall mounting plate to the wall using 2 wall
plugs (previously fitted) with the 2 screws provided.
1. Ensure the plastic plug is removed from the CH
connections before mounting the boiler.
Choose one of the 2 sets of slots in left and right bank.
Ensuring that at least one of the screws is fitted into a top
slot.
2. Lift the boiler onto the wall mounting plate (refer to the
Introduction section for safe handling advice), locating it
over the two tabs.
16
Example of fixing
3G9948
Ideal Logic + System - Installation and Servicing
INSTALLATION
13 DETERMINING THE FLUE LENGTH and flue packs required
IMPORTANT. The boiler must be installed in a vertical position in accordance to the installation instructions.
Flue Kits
Telescopic Flue‘B’ Pack - contains: Flue turret, telescopic flue incorporating a terminal and rubber wall seals.
Horizontal Flue Terminal (600mm long) ‘B’ Pack - contains: Flue turret, non telescopic single piece flue incorporating a terminal
and rubber wall seals.
Horizontal Flue Terminal (1000mm long) ‘B’ Pack - Flue turret, telescopic flue incorporating a terminal, rubber wall seals and instructions.
Note. If ‘B’ packs are used on their own (either 1 piece or telescopic), then they can be fitted horizontally as the flue inside is
designed to slope 1.5 degrees.
‘D’ Pack - contains: 1 metre length of flue pipe (Functional length 950mm), 1 support bracket and instructions.
When extension ‘D’ Packs are used the flue duct must incline 1.5 degrees away from the appliance, to allow the condensate to drain
back to the boiler and out of the condensate drain. It is recommended that a support bracket is fitted on every 1 metre of pipe work
used and the bracket is located as close to the collar as possible. The bracketing must ensure a 1.5 degree fall back to the appliance.
Optional Flue Finishing Kit - UIN 155988 & Concentric Flue Screw Retaining Kit (Optional Kit of mechanical fixing of flue joints)
Only use water as a lubricant during assembly.
The ‘B’ pack terminal is classed as part of the maximum flue length.
These flue systems incorporates a removable flue outlet nose that utilises a push fit location system. This enables the installation
of deflector, high level or balcony flue kits without the removal of the whole ‘B’ pack terminal. The appliance must not be operated
without the desired outlet nose correctly fitted in place, ensuring the side location dimples are in line with the mounting face
allowing the correct sealing of the components.
It is IMPORTANT that all attachments are fitted in accordance to the installation instructions provided with them.
The TURRET supplied in the ‘B’ Pack has an upper combustion sample point with a screw cap seal and a lower air sample point
with an air stopper seal. Ensure all caps & seals are in place.
Additional Termination Kits available for use with these ‘B’ packs.
Flue Deflector Kit
High Level Flue Outlet Kit
Balcony Flue Outlet Kit
The resistance is the equivalent of 1 metre of flue pipe and therefore must be deducted from
any maximum flue length
The maximum permissible concentric flue length when using a standard (500mm) kit is 4.5 metres
The maximum permissible concentric flue length when using this kit is dependant on the length
of the balcony flue outlet run which combined with the concentric run must not exceed the
maximum flue length requirement of the appliance it is to be fitted to
Total Maximum Permissible Horizontal Concentric Flue Length combining both ‘B’ Packs and ‘D’ Packs
(Measured from centreline of the turret to the outside of the wall terminal)
Total Maximum: 9 metres - minus any flue kit options or bends
Total Maximum: 8 metres - minus any flue kit options or bends
FLUE OUTLET
15, 18 & 24 kW appliances
30 kW Appliances
Total Maximum Permissible Vertical Flue Length combining both Roof Terminal and ‘D’ Packs
15, 18, 24 & 30kW Appliances
Total Maximum: 7.5 Metres - minus any bends
Powered Vertical Flue
15, 18, 24 & 30kW Appliances
Total Maximum: 5 Metres - Concentric Flue and 17m flue pipe only. For additional details
refer to the powered Vertical Instructions
90º Elbow Kit 60/100 - (Equivalent flue length resistance = 1M)
45º Elbow Kit 60/100 - (Equivalent flue length resistance = 0.6M)
Minimum Horizontal Flue Lengths (Centre line of turret to outside of wall terminal)
Telescopic Flue ‘B’ Pack = 400mm
Horizontal Flue terminal (600mm long) ‘B’ Pack = 285mm
Wall Thickness
‘B’ Pack Flue Type 60/100
Horizontal Flue Terminal
(600mm long) B Pack
Telescopic Flue B Pack
Horizontal Flue Terminal
(1000mm long) B Pack
Horizontal Flue Terminal
(1000mm long) B Pack cut 75mm
Std Metric Brick 102.5mm wide
Minimum permissible Wall Thickness
Maximum permissible Wall Thickness
Rear Flue Rear Flue + Std-Off Side Flue Rear Flue Rear Flue + Std-Off Side Flue
116
102.5
102.5
501
456
456
231
546
186
501
186
501
429
761
384
716
384
716
471
426
426
686
641
641
For Flue lengths between 658 & 708 use a Horizontal Flue Terminal (1000mm long) B Pack, cut 75mm off the end of the
terminal section of the telescopic flue only.
Ideal Logic + System - Installation and Servicing
17
INSTALLATION
14 DETERMINING THE FLUE LENGTH and flue packs required, cont’d
100mm
Edge of turret
to outside face of wall plus
44mm = flue length
A
REAR
Fit
to wall
inc. Stand
off Frame
WALL
REAR
Fit
to wall
Edge of turret
to outside face of wall plus
44mm = flue length
A
SIDE
Fit
to wall
WALL
Note. Maximum permissible
flue length is measured from
centre line of appliance flue
outlet to outside wall face.
Edge of turret
to outside face of wall plus
44mm = flue length
A
WALL
figure 1
Minimum clearance 5mm
NOTES
Centre of turret to edge of turret = 100mm
Turret has a flue insertion of 30mm
The compressed outer wall seal has protruding wall to seal mounting lip - 14mm
From centreline of turret to wall. Rear mount 155mm, side (including clearance) 200mm
Flue length measured from outer terminal lip
to end of outer flue
A + 44mm
figure 2
Shows the flue required when measured from outside edge of turret to the outside face of the wall (to obtain cut length add 44mm)
B Pack (Standard)
Plus 1 (1m D pack)
Plus 2 (1m D pack)
Plus 3 (1m D pack)
Plus 4 (1m D pack)
Plus 5 (1m D pack)
Plus 6 (1m D pack)
Plus 7 (1m D pack)
Plus 8 (1m D pack)
Plus 9 (1m D pack)
171
1121
2071
3021
3971
4921
5871
6821
7771
8721
556
1506
2456
3406
4356
5306
6256
7206
8186
9000
286
1236
2186
3136
4086
5036
5986
6936
7886
8836
484
1434
2384
3334
4284
5234
6184
7134
8084
9000
601
1551
2501
3451
4401
5351
6301
7251
8201
9000
816
1766
2716
3666
4616
5566
6516
7466
8416
9000
526
1476
2426
3376
4326
5276
6226
7176
8126
9000
741
1691
2641
3591
4541
5491
6441
7391
8341
9000
Max output 30 kW
Max output 15, 18 & 24 kW
FLUE OUTLET
Minimum & Maximum finished flue lengths obtainable (dimension ‘A’ +44mm)
Horizontal Flue Terminal Telescopic Flue B Pack
Horizontal Flue
Horizontal Flue Terminal
(600mm long) B Pack
Terminal (1000mm long)
(1000mm long) B Pack
B Pack (Telescopic)
(Telescopic) Cut 75mm
Minimum
Maximum
Minimum
Maximum
Minimum
Maximum
Minimum
Maximum
Note; Telescopic flue B Pack or attached “D” pack extensions do not need to be cut between minimum and maximum values
shown above (except where specified). Horizontal Flue Terminal (600mm long) B Pack flue will require cutting on values
below maximum values shown in the table above.
18
Ideal Logic + System - Installation and Servicing
INSTALLATION
15 Cutting & Setting the Flue Length
Telescopic Flues
Telescopic Flue B Pack should only be adjusted for use within its specified range and must NOT
BE CUT
Horizontal Flue Terminal (1000mm long) B Pack (telescopic) must ONLY BE CUT IF REQUIRED FLUE
LENGTHS ARE BETWEEN 602 & 652MM. THIS WILL REQUIRE 75MM TO BE CUT OFF THE TERMINAL END OF THE
1000MM TELESCOPIC FLUE.
ALL OTHER LENGTHS OBTAINED USING “D” PACK EXTENSIONS IN FLUE LENGTH TABLE 1, COLUMN “HORIZONTAL
FLUE TERMINAL (1000MM LONG) B PACK CUT 75MM” (telescopic) SHOULD HAVE THE 75MM CUT OFF THE “D”
PACK EXTENSION AND NOT TELESCOPIC FLUE
Cut 75mm off horizontal flue terminal 1000mm long b pack (telescopic)
1. Measure cut flue length (A+44mm). (If required telescopic length is not between
658 and 708 then proceed to “Setting Telescopic Flue B Pack”).
2. Remove telescopic end piece from the flue body and set aside.
3. Mark the circumference 75mm from the open end of the outer flue.
4. Cut along the 75mm mark cutting only the outer flue ensuring the cut is square.
5. Dress the cut end to make sure all burr is removed and the cut edge is in its
original shape.
6. Measure 20mm from the newly cut edge of the outer flue, place a mark at the top of the flue approximately 20mm wide &
write stop the terminal side of the line.
7. Mark the inner tube 10mm longer than the outer tube around its circumference and cut following the mark to ensure its cut
square
8. Remove all burrs and place a chamfer on the outer edge to aid assembly.
9. Re-assemble telescopic section.
Setting Telescopic Flue B Pack
1. Measure the required flue length (A+44mm).
FLUE OUTLET
2. Measure from the outer terminal lip to end of outer flue. Pull apart flue until
desired length is achieved. ENSURE THE STOP MARK IS NOT VISIBLE,
IF IT IS, THE FLUE IS TOO SHORT AND SHOULD NOT BE USED.
3. Check that both flue seams are at the top and the outlet terminal is upper
most.
4. Drill a 3.5mm hole through one of the 2 outer side holes in the outer flue
section into the inserted outer flue (as shown). Take care not to pierce the
inner plastic flue. Fit screw provided.
5. Seal the joint on the outer air duct with the tape provided.
6. Fit internal and external wall seals (see installing flue)
Cutting HORIZONTAL FLUE TERMINAL (600MM LONG) B PACK
1. Measure the required cut flue length (A+44mm). If inside the dimensions
shown in Figure 2 “1 Piece 600mm” proceed.
2. Measure from the outer terminal lip to end of outer flue. Mark the
required cut length (A+44) around the circumference of the outer flue and
cut following the mark to ensure its cut square.
3. Dress the cut end to make sure all burr’s are removed and the cut edge
is in its original shape.
4. Mark the inner tube 10mm longer than the outer tube around its
circumference and cut following the mark to ensure its cut square.
5. Remove all burrs and place a light chamfer on the outer edge to aid
assembly.
Ideal Logic + System - Installation and Servicing
19
INSTALLATION
16 Installing the Flue
Fitting Flue Through the Wall
1. Measure wall thickness and add 14mm.
2. Measure from the outer terminal lip towards the end of outer flue, place a
small location mark at the dimension acquired at point 1.
3. Add a further 14mm to the dimension, obtain at item 1 (point 1) and place
an additional small location mark.
4. Fit external black wall seal ensuring the inside of the outer lip is in contact
with the terminal lip you have been measuring from (see fig 1)
5. Fit the internal wall seal approximately 65mm before the outer of
the 2 location marks.
6. For an internal fit place flue terminal in the centre of the 5” drilled
hole in the wall. Apply pressure and lightly move the flue left to
right or up and down. This will cause the outer flange to fold in
and allow the flue to pass through the wall.
7. Push through a further 65mm or until the inner flange is press
against the inner wall. This will allow the outer flange to return to
its original shape.
8. Pull back the flue until the first of the 2 location marks is level with
the internal face of the wall.
Note. If the 2 location marks are not visible then the flue is not
pulled back far enough to obtain the correct seal. If the 1st location mark has passed the face of the wall the flue has been
pulled to far back and the outer wall seal will have been dislodged from its mounting and will need to be refitted.
9. When 1st mark is in line with the wall, whilst holding the flue firmly, push the white wall sealing flange to the wall until the 2nd
of the two marks is just visible. If the last location mark is clearly passed the white inner wall seal then the outer wall seal will
have been dislodged from its mounting and will need to be re-fitted.
10.Ensure the seam and the outlet terminal are at the top and fitted as shown.
Note. If less than 50% of the length of the flue is internal the flue should be fitted from outside.
Terminal
MUST be
fitted as
shown
Wall Seal Lip
Fig 1
FLUE OUTLET
Terminal Lip
20
Rubber
Terminal
Wall Seal
Location
mark 1
Location
mark 2
Ensure lip of wall seal is positioned
over step on plastic nose of flue terminal
(note, seal is cut away for clarity)
Fitting the Turret
1. Ensure the rubber seal is fitted correctly on the appliance manifold and that all flue seals are undamaged.
2. Hold the flue firmly and push the turret on until it has travelled 30mm on to the flue pipe and is fully engaged. Make sure the
flue has not rotated or moved forward during fitting and the flue seam is upper most.
3. Push the turret into the manifold ensuring the upper plastic lip is flush with the top of the manifold.
4. Fully engage the clamp location section into the manifold location holes. Rotate down on to turret flange.
5. Secure clamp to appliance using securing screw.
6. Ensure all sample points are accessible and all sample plugs and caps are fitted.
Retaining
screw
D
Clamp Lugs
A
B
Flue Outlet
A - Duct Assembly
B - Flue Turret
C - Turret Clamp
D - Seal
Sample points
Flue Outlet
C
Ideal Logic + System - Installation and Servicing
INSTALLATION
INSTALLATION
17 Fitting the Optional Roof Flue Kit (Flat or Pitched)
Note.
A flat or pitched roof flashing plate (not supplied) is required before proceeding
with the installation of this kit.
This kit is suitable for both flat and pitched roof terminations, using a concentric
flue to run vertically from the top of the boiler and terminating above roof level.
Connection to the top of the boiler is made using a separately supplied vertical
connector.
Weather Proofing
Where the flue passes through the roof line an adequate seal
must be made. This is achieved by using either:
- Flat roof weather collar
or
- Universal weather collar.
Accessories
Flue Duct Extension Kits are available for flue
lengths extending beyond 1m. These packs
contain 1m extension ducts and may be cut
to the desired length.
If the offset vertical option is used an elbow
Kit is required. For a full accessories list
refer to page 6, Optional Extras.
nm8736
18 Roof Flue Kit Contents / Options
Flue Terminal
UIN 203132
Flue Seal Collar - Flat Roof
UIN 152259
Vertical connector
UIN 208175
90o elbow
UIN 203130
45o elbow
UIN 203131
Flue
duct
support
Flue Seal Collar - Tile Roof
UIN 152258
Roof Flue Extension Duct
UIN 203129
Flue
duct
support
Ideal Logic + System - Installation and Servicing
21
INSTALLATION
19 Flue Terminal Position
The terminal should be positioned so that products of
combustion can safely disperse at all times.
Pluming may occur at the termination so, where possible,
terminal positions where this could cause a nuisance
should be avoided.
rf8392
Minimum dimensions are shown below
m
0m
30
in
m
300mm
min
rf8393-1
625mm
Fixed
300mm
min
Flat roof - with structure
rf8394-1
A
A
B
07
22
A
98
RF
FLUE OUTLET
690mm
Fixed
A = 600mm
B = 2000mm
The flue terminal shall not penetrate the shaded area of the roof
Terminal Position
Minimum Dimension
Directly below an opening,
air brick, windows, etc.
300 mm
Below plastic / painted gutters
300 mm
Painted surface
300 mm
Below eaves or balcony
500 mm
Below velux windows
2000mm
Above or side of velux windows
600mm
Note.
The equivalent flue length resistance of the
elbow kits are:
90o elbow kit = 1m
45o elbow kit = 0.6m
Ideal Logic + System - Installation and Servicing
INSTALLATION
20Assembling the Roof Flue Kit
Determine the correct height that the flue should terminate above
the roof. If after calculating or measuring the overall flue height
from the top of the boiler, it is necessary to cut both pipes of
assembly A, then ensure they are cut equally leaving the inner
flue tube longer than the outer air tube as supplied.
MAX LENGTH:
7.5m
o
1. Position the roof flashing plate (supplied separately) over the
hole cut in the roof and insert flue terminal from the roof end.
max 41
min 16
o
Ensure the cut pipe ends are free from any burrs.
BOILER
2. Fit the vertical connector (supplied separately) in accordance
with the in the instructions provided with the vertical connector
kit.
Flue Terminal
aSSEMBLY a
nm8739
1
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.
Flat roof tile
weather collar
5. “Push” fit extension duct (if required (supplied separately)) into
vertical connector.
Pitched roof tile
weather collar
Note. Ensure turret sample points are servicable and all caps and
plugs are fitted.
5
4
FLUE OUTLET
nm8740
Extension
Duct
Vertical
connector
3G9557b
2
6. If the last extension duct requires cutting, measure ‘X’, the distance
(outer ducts), between the duct and the terminal and add 100 mm to this
dimension. This gives the length of the last extension duct.
6
'X'
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.
Ideal Logic + System - Installation and Servicing
23
21condensate drain
Condensate Pump
Where gravity discharge to an internal termination is not physically
possible or where very long internal pipe runs would be required
to reach a suitable discharge point, a condensate pump of a
specification recommended by the boiler or pump manufacturer
should be used terminating into a suitable internal foul water
discharge point such as an internal soil and vent stack or internal
kitchen or bathroom waste pipe etc. (fig 3).
149
Condensate
Drain
This appliance is fitted with a siphonic 75mm 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 19mm ID (typically
22mm OD)
d. External plastic pipe must be a minimum of 30mm ID (typically
32 OD) before it passes through the sleeved wall.
e. All horizontal pipe runs, must fall a minimum of 45mm per metre
away from the Boiler.
f. External & unheated pipe work should be kept to a minimum
and insulated with Class “O” waterproof pipe insulation.
g. All installations must be carried out in accordance to the
relevant connection methods as shown in the “Condensate
installation diagrams” & BS6798:2009
h. Pipe work 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 during prolonged very cold
spells, one of the following methods of terminating condensate
drainage pipe should be adopted.
Internal Drain Connections
Wherever possible, the condensate drainage pipe should be routed
to drain by gravity to a suitable internal foul water discharge point
such as an internal soil and vent stack or kitchen or bathroom
waste pipe etc. See Figs 1 and 2.
Figure 1 - Connection of Condensate Drainage Pipe to
Internal Soil & Vent Stack
≥ 450
Boilers without 75mm sealed
condensate trap must be fitted with
a 75mm trap and visible air break
-
-
-
-
For connections to an external soil/vent stack see Fig 4.
Insulation measures as described should be used.
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, see Fig 5.
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. See Fig 6.
Where the condensate drain pipe terminates in a purpose
designed soak away (see BS 6798) any above ground
condensate drain pipe sections should be run and insulated as
described above. See Fig 7
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.
Figure 2 - Connection of a Condensate Drainage Pipe
Downstream of a Sink, Basin, Bath or Shower Water Trap to
Internal Soil Vent Stack
Minimum
connection
height up to 3
storeys
Sink/basin/
bath or
shower
Min Ø 19mm
Internal pipe
75
≥ 100
Min Ø 19mm
Internal pipe
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.
Boiler
with 75mm
sealed
condensate
trap
Soil & vent stack
Boiler
with 75mm
sealed
condensate
trap
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 soak away.
If an external system is chosen then the following measures must
be adopted:
≥ 100
203
Internal soil & vent stack
47
75
INSTALLATION
INSTALLATION
Boilers without 75mm sealed
condensate trap must be fitted with
a 75mm trap and visible air break
continued . . . . .
24
Ideal Logic + System - Installation and Servicing
INSTALLATION
Boiler
with 75mm
sealed
condensate
trap
Min Ø 30mm
Internal pipe
Boiler
with 75mm
sealed
condensate
trap
Water/
weather proof
insulation
Min Ø 19mm
Internal pipe
Min Ø 30mm
Internal pipe
Boiler
with 75mm
sealed
condensate
trap
combined foul/
rain water drain
External air
break
Air gap
Terminated
and cut at 45º
43mm 90º male/
female bend
68mm Ø PVCU
Strap on fitting
Minimum
connection
height up to 3
storeys
Figure 6 - Connection of Condensate Drainage Pipe
Upstream of a Sink, Basin, Bath or Shower Waste Trap to
External Drain, Gulley or Ranwater Hopper
Visible air break
at plug hole
Min Ø 19mm
Internal pipe
Sink, basin, bath or
shower with integral
overflow and 75mm trap
75
Figure 5 - Connection of a Condensate Drainage Pipe to an
External Rainwater Downpipe (only combined foul/rainwater
drain)
Boilers without 75mm sealed
condensate trap must be fitted with
a 75mm trap and visible air break
≥ 100
Condensate pump
(Install in accordance with manufacturers instructions)
≥ 450
Min Ø 19mm
Internal pipe
Water/
weather proof
insulation
Minimum 30mm
internal pipe
45º pipe
termination
≥ 25 Below grate
75
Min Ø 19mm
Internal pipe
Water/weather
proof insulation
75
Visible air break
Boiler
with 75mm
sealed
condensate
trap
Figure 4 - Connection of condensate Drainage Pipe to
External Soil & Vent Stack
Soil & vent stack
Figure 3 - Connection of a Condensate Pump Typical
Method (see manufacturers detailed instructions)
INSTALLATION
22 Condensate drain - Cont’d.......
Figure 7 - Connection of a Condensate Drainage Pipe to an
External Purpose Made Soak Away.
Boiler
with 75mm
sealed
condensate
trap
Max 3m external
pipework
Boilers without 75mm sealed
condensate trap must be fitted with
a 75mm trap and visible air break
≥ 300
≥ 25
Min Ø 19mm
Internal pipe
Water/Weather
proof insulation
75
Min Ø 30mm
Internal pipe
≥ 500
Limestone
chippings
2 rows of three Ø12mm holes
25mm centres, 50mm from
the bottom of the tube, facing
away from the house
Ideal Logic + System - Installation and Servicing
25
23connections & Filling
NOTES.
Ensure all boss blanking plugs are removed before connecting hardware. Each valve must be fitted to the correct boss as shown
in the picture.
Ensure each union is fitted with fibre seals provided. Do not subject any of the isolating valves to heat as the seals may
be damaged.
WATER CONNECTIONS CH
1. Connect the CH flow service valve provided in the hardware
pack to the threaded boss connection provided at the lower
rear of the boiler.
2. Connect the CH return valve.
3. For boiler outputs of 18, 24 & 30:
If connecting the boiler to heating loads in excess of
60,000 Btu/h, connecting flow and return heating systems
pipework must be sized in 28mm diameter at the point of
pipe connection to the boiler tails. Use 22mm x 28mm pipe
adaptors as appropriate.
GAS CONNECTION
IMPORTANT.
The gas service cock is sealed with a non-metallic
blue fibre washer, which must not be overheated when making
capillary connections. Refer to Frame 1 for details of the position of
the gas connection.
For additional gas supply information refer to “Gas Supply” on page 8.
FILLING
Important - when filling:
A. Ensure the dust cap on air vent
located at the rear of the pump
chamber is slightly unscrewed.
B. When filling, there may be a slight
water leak from the air vent therefore
electrical connections should be
Dust Cap
protected.
1. Ensure that the CH isolating
handles are open.
2. Fill and vent the system. Refer
to Frame 2 for filling and setting
pressure procedure.
3. Check for water
soundness.
safety valve Drain
The safety valve connection, located at the bottom right-hand side of the boiler,
comprises a 15mm diameter stub pipe.
The Installer to provide a comprssion joint on the end of the stub pipe. This assists
with pipe removal when servicing.
The discharge pipe should be positioned so that the discharge of water or steam
cannot create a hazard to the occupants of the premises or damage the electrical
components and wiring.
3G9705
INSTALLATION
INSTALLATION
Safety Valve
Drain Connection
15mm elbow
or fittings
(not supplied)
Safety Valve
Drain Pipe
Note that all isolation handles are
shown in the open position.
Black
Handle
CH Flow
205552-10119
Yellow
Handle
Gas
Supply
Safety
Drain
Valve
Black
Handle
CH Return
26
Ideal Logic + System - Installation and Servicing
INSTALLATION
Warning. This appliance must be earthed.
A mains supply of 230Vac ~ 50 Hz is required.
The fuse rating should be 3A. All external controls and wiring
must be suitable for mains voltage.
Wiring external to the boiler MUST be in accordance with the
current I.E.E. (BS.7671) Wiring Regulations and any local
regulations.
INSTALLATION
24electrical connections
Wiring should be 3 core PVC insulated cable, not less than
0.75mm2 (24 x 0.2mm), and to BS 6500 Table 16. For IE
reference should be made to the current ETCI rules for
electrical installations.
Connection must be made in a way that allows complete
isolation of the electrical supply such as a double pole switch
having a 3mm (1/8”) contact separation in both poles. The
means of isolation must be accessible to the user after
installation.
25 internal wiring
The Logic + System boiler comes pre-fitted with 1.8m of mains cable. This must be
connected to a permanent live supply and NOT switched by thermostats/programmers.
For installers wishing to change this cable refer to Frame 27.
The terminal block cover carries two spare fuses for the main PCB.
Connecting the Switched Live to the Boiler
1.
2.
3.
4.
5.
Consult the Y Plan and S Plan diagrams below.
Isolate the mains supply to the boiler
Remove the front panel. Refer to Frame 7.
Swing the control box down into the servicing position.
Route incoming cable through a grommet in the bottom panel (note that the
grommets are “blind” and will require puncturing) and secure using the clamp and
screws provided in the hardware pack.
6. Connect the switched live to the terminal block as shown.
Spare PCB fuses
Frost thermostat - Wiring
If parts of the system are
vulnerable to freezing or the
programmer is likely to be left off
during cold weather, a frost stat
should be fitted in conjunction with
a pipe thermostat.
LOGIC + SYSTEM BOILER WITH Y PLAN SYSTEM
L
N
E
b
g/y
FUSED
SPUR
g
R/S
Y PLAN
VALVE
w
C/S
o
BOILER
L
L
L
TIMER
N
N
E
N
E
sL
CH R/S HW HW C/S
ON ON ON OFF ON
CH ON
HW ON
HW OFF
3G10022
See overleaf for S Plan System..................
Ideal Logic + System - Installation and Servicing
27
INSTALLATION
INSTALLATION
26 internal wiring Cont’d.......
LOGIC + SYSTEM BOILER WITH S PLAN SYSTEM
g
HW
S PLAN
VALVE
b
L
N
g/y
E
g
CH
S PLAN
VALVE
b
g/y
FUSED
SPUR
br
R/S
C/S
br
o
o
L
L
TIMER
N
N
E
BOILER
L
CH R/S HW HW C/S
ON ON ON OFF ON
N
E
sL
CH ON
HW ON
3G10023
27rEPLACING 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 in Frame 24.
1. Isolate the mains supply to the boiler.
2. Remove the front panel. Refer to Frame 36.
3. Swing the control box down into the service position. Refer to frame
42.
4. Remove the live, neutral and earth wires from the terminal block.
5. Loosen the cable clamp and withdraw the mains cable.
6. Route replacement cable back through the cable clamp and grommet
and re-tighten to provide cord anchorage.
7. Connect the live, neutral and earth wires to the terminal strip. When
making the mains electrical connections to the boiler it is important
that the wires are prepared in such a way that the earth conductor
is longer than the current carrying conductors, such that if the cord
anchorage should slip, the current carrying conductors become taut
before the earthing conductor.
8. Swing the control box back up into the operating position and re-fit the
front panel ensuring a good seal is made.
5
28external electrical controls
Wiring External to the Boiler
The fuse rating should be 3A.
Wiring external to the boiler MUST be in accordance with the current I.E.E. (BS.7671) Wiring Regulations and any local
regulations.
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.
The frost thermostat should be sited in a cold place but where it can sense heat from the system.
Note. If the boiler is installed in a garage it may be necessary to fit a pipe thermostat, preferably on the return pipework.
28
Ideal Logic + System - Installation and Servicing
Ideal Logic + System - Installation and Servicing
Water
Pressure
Sensor
r
or
bk
X8
X6
X5
y
bk
p
Fan
y/g
b br
bk
Control
No Flow
Thermistor
p
Return
Thermistor
r
bk
1
X7A
2
Service
Connector
b
bk
1
X7B
11 10 9 8 7 6 5 4 3 2 1 6 5 4 3 2 1 4 3 2 1 2
KEY
b - blue
bk - black
br - brown
r
- red
p - pink
y - yellow
w - white
y/g - yellow/green
g - grey
or - orange
v - violet
2
X3
1
5
bk
Spark
Electrode
Flame
Sensor
Electrode
3
PCB
y/g
4
y/g
3
X2B
b
2
4
bk
2
b
Gas
Valve
y/g
bk
X2A
3
Spark
Generator
br
1
y/g
4
2
X1D
3
Chassis
Earth
1
1
3
b
1
3
2
L
br
X1B
1
b
N
E
206025-9950c
sL
y/g bk
1
X1A
2
29wiring diagram
INSTALLATION
Pump
y/g br
2
X1C
Fused
at 4AT
INSTALLATION
29
INSTALLATION
INSTALLATION
30 Commissioning and Testing
B.Gas Installation
A. Electrical Installation
1. Checks to ensure electrical safety should be carried out by a
competent person.
2. Always carry out the preliminary electrical system checks,
i.e. earth continuity, polarity, resistance to earth and short
circuit, using a suitable test meter.
3. After wiring the boiler, all grommets in the bottom panel
MUST be in place to ensure that the boiler case sealing is
maintained.
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.
In IE refer to IS.813:2002.
2. Purge air from the gas installation by the approved methods
only.
WARNING. Whilst effecting the required gas tightness test and purging air from the gas installation,
open all windows and doors, extinguish naked lights and do not smoke.
General
Please Note: 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.
Having checked:
- That the boiler has been installed in accordance
with these instructions.
- 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:
Check the operational (working) gas
inlet pressure
Set up the boiler to operate at maximum rate.
With the boiler operating in the maximum rate
condition check that the
operational (working) gas
pressure at the inlet gas pressure
test point complies with the
requirements - refer to “Gas
Supply” on page 8.
Gas
Supply
Ensure that this inlet pressure
can be obtained with all other
gas appliances in the property
working.
205552-10118
Gas Pressure
Test Point
As part of the commissioning process, the combustion of this appliance must be checked
and the Benchmark Checklist completed. A flow chart to assist is provided on page 59.
ATTENTION !
IT IS A CONDITION OF THE MANUFACTURERS WARRANTY THAT THE
BENCHMARK COMMISSIONING CHECKLIST IS FULLY COMPLETED
AND LEFT WITH THE APPLIANCE
30
Ideal Logic + System - Installation and Servicing
INSTALLATION
INSTALLATION
31initial lighting
Legend
A. CH temperature control
B. Mode Control Knob
C. Boiler Status
D. Burner ‘on’ indicator
E. CH Flow Isolating Valve
F. Pressure Gauge
G. Gas Inlet Pressure Test Point
H. Gas Service Cock
J. CH Return Isolating Valve
K. Drain Valve
A
C
D
B
K
F
E
Drain
Valve
CH Flow
10121
Note. Valves shown are in the open position.
Safety
Drain
Valve
Gas Supply
H
G
J
CH Return
1. Check that the system has been filled and that the boiler is not Important
airlocked. Ensure the automatic air vent cap is open. Refer to The gas input to the burner is regulated by the gas
Frame 28.
valve according to the air flow produced by the fan.
It is not user-adjustable. Any interference to sealed
Note.
settings on the gas valve will adversely affect operation
It is important the burner is not operated before the system is fully
and render our warranty void.
vented of air. If it is necessary to operate the appliance pump to
assist venting of the air this must be done with the gas service cock For additional gas supply information refer to “Gas Supply”
turned off.
on page 8.
2. Refit the boiler front panel. Refer to Frame 36.
3. Check that the drain valve (K) is closed and that the CH isolating
valve (E and J) are OPEN.
4. Check that the electrical supply is OFF.
5. Check that the boiler mode control knob (B) is off.
6. Check that the gas service cock (H) is OPEN.
7. Slacken the screw in the inlet pressure test point (G) and connect
a gas pressure gauge via a flexible tube.
8. Switch the electricity supply ON and check all external controls
are calling for heat.
Central Heating
9. Set the CH temp control (A) to max and turn the mode control knob
(B) to ON. The boiler control should now go through its ignition
sequence until the burner is established.
10.If the boiler does not light after 5 attempts the boiler will lock out
constantly. Reset the boiler (Refer to
and display fault code
Frame 33). The boiler will repeat its ignition sequence. If reset
will be shown. If power
occurs 5 times within 15 minutes then
is removed this will be reset.
When the burner is established the BLUE ‘Burner On’ neon (D)
will be illuminated, the LED display (C) will show status .
11.Ensure that with the boiler operating the dynamic gas pressure
is able to obtain maximum output. Refer to Table 2.
Ideal Logic + System - Installation and Servicing
THE DISPLAY
The user control has one neon and one display to inform
the user about the status. The display will show the status
of the boiler. The neon will show the status of the flame.
If no flame is detected the neon is off. When the flame is
detected the neon will be lit permanently.
Below is a list with display function in normal operation.
Standby, no demand for heat present.
Boiler is active for central heating or hot water.
Boiler is active for boiler frost protection.
Boiler is in lockout for a specific error. Display will be
blinking, alternating with a number or letter to show
which error is detected.
Boiler has a fault for a specific error. Display will be
blinking, alternating with a number or letter to show
which error is detected.
Note: Boiler frost protection - boiler fires if temperature is
below 5 degrees C.
Note. The boiler incorporates a fan overrun cycle which
MUST NOT be prematurely interrupted by isolation of the
mains electricity supply.
31
INSTALLATION
INSTALLATION
32 general checks
Make the following checks for correct operation:
Central Heating (CH) mode
1. Ensure that the CH external controls are
calling for heat.
The display should read:
2. Check the boiler gas rate when the boiler is
at full output.
Check at the gas meter, with no other
appliance in use. Refer to Table 2 for gas
rate.
3. Set the central heating external controls
to OFF. The burner should go off and the
pump continue to run for 4 minutes
The display should read:
4. Check the correct operation of the timer
and all other system controls. Operate
each control separately and check that the
main burner responds.
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 Frame 4.
4. Refill and vent the system, add inhibitor (see Frame 4), 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 Frame 3.
7. Check the condensate drain for leaks and check that it is discharging correctly.
8. Finally, set the controls to the User’s requirements.
Note: The pump will operate briefly as a self-check once every 24 hours in the
absence of any system demand.
Water temperatures
Temperatures can be selected using the
CH temperature control (A)
33 RESET PROCEDURE
Legend
Knob Setting
CH Flow Temp ºC (ºF)
Max
80 (176)
Min
30 (86)
To reset boiler, turn the mode control knob (B) to reset position and immediately turn
knob back to required setting. The boiler will repeat the ignition sequence if a heat
demand is present.
A. CH temperature control
B. Mode Control Knob
C. Boiler Status
D. Burner ‘on’ indicator
A
C
D
B
34HANDING OVER
After completing installation and commissioning of the system the installer should hand over to the householder by the following actions:
1. Hand the User Instructions to the householder and explain his/
her responsibilities under the relevant national regulations.
2. Explain and demonstrate lighting and shut down procedures.
3. The operation of the boiler and the use and adjustment of all
system controls should be fully explained to the householder,
to ensure the greatest possible fuel economy consistent with
the household requirements of both heating and hot water
consumption.
Advise the User of the precautions necessary to prevent damage
to the system and the building, in the event of the system
remaining inoperative during frosty conditions.
4. Explain the function and the use of the boiler heating controls.
5. Explain the function of the boiler fault mode.
Emphasise that if a fault is indicated refer to “Fault Codes” in the
User Guide.
6. Explain and demonstrate the function of time and temperature
controls, radiator valves etc., for economic use of the system.
7. If a timer is fitted draw attention to the timer Users Instructions
and hand them to the householder.
32
8. Loss of system water pressure
Explain that the dial underneath the boiler 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.
9. Explain Boiler reset procedure.
10.After installation and commissioning please complete the
Benchmark Commissioning Checklist before handover to the
customer. For IE, its is necessary to complete a “Declaration of
Conformity” to indicate compliance to I.S. 813:2002.
Important
11.A comprehensive service should be carried out ANNUALLY.
Stress the importance of regular servicing by a Gas Safe
Registered Engineer. In IE servicing work must be carried out by
a Registered Gas Installer (RGII).
12.Inform the householder of the guarantee/registration found within
the envelope pack and the requirement to register it to receive
the full benefit of the warranty.
Ideal Logic + System - Installation and Servicing
SERVICING
35 servicing schedule
For the very latest copy of literature for specification & maintenance practices, visit our website www.idealboilers.com, where you
will be able to download the relevant information. N.B. Technical Bulletins are also available on www.idealboilers.com.
Warning. Always turn off the gas supply at the gas service cock, and switch OFF and disconnect the electricity
supply to the appliance before servicing.
Combustion testing must be carried out by a competent person using a combustion analyser conforming to BS7927.
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.
It is the law that any service work must be carried out by a Gas Safe Registered Engineer. In IE service work must be carried out
by a Registered Gas Installer (RGII).
1. Light the boiler and carry out a pre-service check, noting
any operational faults.
2. Check the flue terminal (and terminal guard if fitted) is
undamaged and clear of any obstruction.
3. 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.
CLEANING PROCEDURE
Note. In order to carry out either servicing or replacement of
components the boiler front panel must be removed.
Refer to Frame 36.
1. Clean the main burner. Refer to Frame 38.
2. Clean the heat exchanger & condensate trap/siphon.
Refer to Frames 39 & 40.
3. Check the main injector for blockage or damage. Refer to
Frame 37.
4. Check that the flue terminal is unobstructed and that the
flue system is sealed correctly.
The cleaning procedures are covered more fully in Frames
37-40 and must be carried out in sequence.
Important.
6. After completing the servicing or exchange of components
always test for gas tightness.
General
Please Note: During routine 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.
Competence to carry out the check of
combustion performance
Please Note:
BS 6798:2009 Specification for installation and
maintenance of gas-fired boilers of rated input not exceeding
70kW net advises that:
- The person carrying out a combustion measurement should
have been assessed as competent in the use of a flue gas
analyser and the interpretation of the results.
- The flue gas analyser used should be one meeting the
requirements of BS7927 or BS-EN50379-3 and be calibrated
in accordance with the analyser manufacturers requirements,
and
- Competence can be demonstrated by satisfactory completion
of the CPA1 ACS assessment, which covers the use of
electronic portable combustion gas analysers in accordance
with BS7967, Parts 1 to 4.
7. When work is complete the front panel MUST be correctly
refitted, ensuring that a good seal is made.
Do not operate the boiler if the front panel
is not fitted.
8. If, for any reason, the condensate trap/siphon has been
removed ensure the trap is refilled with water before
reassembling.
Flue Sampling Point
Air Sample
Point
9. Check the gas consumption.
10.Check combustion by connecting the flue gas analayser
to the flue gas sampling point as shown in the diagram
and measure CO & CO2.
If the CO/CO2 ratio is greater than 0.004 AND the integrity
of the complete flue system and combustion circuit seals
have been verified and the inlet gas pressure (and gas
rate) have been verified, then contact Ideal.
Ensure all caps and seals
are re-fitted after use
11.Complete the service section in the Benchmark
Commissioning Checklist.
Ideal Logic + System - Installation and Servicing
33
servicing
INSPECTION
SERVICING
36boiler front panel removal / Replacement
1
REMOVAL
1. Loosen the two screws retaining the front panel.
2
2. Pull the two spring clips down to disengage and pull panel
forward and upward and remove.
REPLACEMENT
3. Hook the panel onto the top retaining clips.
4. Push the panel until the 2 bottom spring clips engage
ensuring the 4 control knobs line up with the holes in the
front panel.
5. Re-tighten the two retaining screws.
Servicing
3
view from bottom of boiler
view from top of boiler
37fan and venturi assembly removal and cleaning
1. Disconnect the electrical leads from the fan.
2. Undo the gas pipe union connection to the
injector housing.
1
3
3. Remove the extended nut on the fan
mounting bracket.
4. Lift off fan and venturi assembly.
5. Inspect the injector for blockage or damage.
6. Inspect fan outlet sealing gasket and
replace if necessary.
5
Injector
2
34
Ideal Logic + System - Installation and Servicing
SERVICING
38burner removal and cleaning
1. Ensure the sump is fully drained
3
2. Undo the two screws and remove the sump cover retaining the lower
flue manifold.
2
2
3. Lift the manifold to clear the bottom sealing gasket and remove
manifold.
4. Remove the 2 burner front fixing screws and loosen the 2 rear
extended nuts by at least ten turns.
5. Lift off the burner from the combustion chamber. To facilitate the
removal angle the burner as shown.
Important
The burner head is a ceramic plaque construction. Care must be
taken to ensure that the burner is not placed down upon
its face as this may cause damage to the ceramic.
4
6. Brush off any deposits that may be on the ceramic with a
SOFT brush.
servicing
7. Inspect the sealing gasket around the burner for any
signs of damage. Replace as necessary.
5
4
39 cleaning the condensate Trap/Siphon
1. Pull off the rubber pipe noting the position and flush out any deposits with
clean water.
2. Replace the cleaning plug and refill the siphon with water.
3. Replace the rubber pipe connector with the twin wall seal fitted to the
condensate siphon.
1
3
Ideal Logic + System - Installation and Servicing
35
SERVICING
40 cleaning the heat exchanger
Note: Ensure the condensate trap/siphon
is fully drained before cleaning. Refer to
Frame 51.
1
Ignition Electrode
Flame Detection
1. Remove ignition and flame detection
electrodes. Refer to Frames 47 & 48.
2. It is advisable to replace the sump cover
prior to the water flush process.
3. Thoroughly flush the heat exchanger
by pouring water into the top of the
combustion chamber ensuring the full top
area is covered.
4. Remove the sump cover and clean loose
deposits from the sump.
3
Servicing
5. Inspect the ignition and detection
electrodes. Ensure that they are clean
and in good condition - replace if
necessary.
6. Re-fit the ignition and flame detection
electrodes, ensuring that both earth tabs
are fitted to ignition electrode.
7. Check that the ignition and detection gaps
are correct. Refer to Frames 47 & 48.
41 reassembly
Reassemble the boiler in the following order:
1. Ensure that the condensate trap/siphon is full of water.
2. Refit the burner ensuring the sealing gasket is correctly
positioned and free from damage (tighten the 4 fixing screws
in the sequence shown below).
3. Refit the fan / venturi assembly ensuring the retaining tabs
are correctly positioned and the sealing gasket is correctly
positioned and free from damage.
7. Refit the boiler front panel.
Important. Ensure that the boiler front panel is
correctly fitted and that a good seal is made.
8. Swing the control box back into its working position and
secure.
9. Turn on the gas supply at the gas service cock.
4. Reconnect the fan electrical leads.
10.Reconnect the electrical supply.
5. Remove the sump cover and refit the lower flue manifold as
shown.
11.Check the operation of the boiler. refer to Frame 31 &
32.
6. Refit the sump cover.
4
2
.
5
1
36
3
Ideal Logic + System - Installation and Servicing
SERVICING
42replacement of components
General
After replacing ANY component check operation of the
boiler, including gas soundness, gas rate and combustion
test.
When replacing ANY component
1. Isolate the electricity supply.
Important.
When work is complete, the front panel must be correctly
refitted - ensuring that a good seal is made.
2. Turn off the gas supply.
3. Remove the boiler front panel. Refer to 36.
Notes.
1. In order to assist fault finding, the control panel has
an LED diagnostic display. The key to boiler fault
conditions is shown in Frame 64.
4. Release the retaining clip and swing the control box down
into its servicing position.
servicing
2. In order to replace components in Frames 55-62 it is
necessary to drain the boiler. Refer to Frame 54.
4
THE BOILER MUST NOT BE OPERATED without THE FRONT PANEL FITTED
43fan replacement
8
Retaining Tabs
2
1. Refer to Frame 42.
2. Disconnect the electrical leads from the fan.
3. Undo the gas pipe union connection to the
injector housing.
4. Remove the extended nut retaining the fan
mounting bracket.
4
5. Lift and remove the fan and venturi assembly.
6. Remove the screw and twist venturi anticlockwise to remove venturi assembly, noting
the orientation of the venturi in relation to the
fan body.
6
7. Transfer the venturi assembly to the new fan,
replacing the ‘o’ ring if evidence of damage or
deterioration is visible.
8. Fit the new fan / venturi assembly ensuring the
retaining tabs are correctly positioned and the
fan outlet sealing gasket is correctly positioned
and free from damage. Refit the extended nut.
9. Reassemble the boiler in reverse order, taking
care not to overtighten the screw on the fan
mounting bracket.
3
10.Check the operation of the boiler. Refer to
Frames 31 & 32.
Ideal Logic + System - Installation and Servicing
37
SERVICING
44 Burner injector replacement
1. Refer to Frame 42.
2
4
2. Disconnect the electrical leads from the fan.
3. Undo the gas pipe union connection to the
injector housing.
4. Loosen the screw retaining the fan mounting
bracket.
5. Lift and remove the fan and venturi assembly.
6. Remove the 2 injector housing screws.
7. Withdraw the injector housing.
6
8. Fit the new injector housing complete with
injector.
Servicing
9. Reassemble in reverse order, ensuring that the
new gas seal supplied is located correctly in the
injector housing.
10.Check operation of the boiler. Refer to Frames 31
& 32.
3
45burner REPLACEMENT
1. See Frame 38.
2. Refer to Frame 42.
3. Undo the two screws and remove the sump cover.
4
3
3
4. Lift the manifold to clear the bottom sealing gasket and remove
manifold.
5. Remove the 2 front fixing screws and loosen the 2 rear extended
nuts.
6. Lift off the burner from the combustion chamber. To facilitate the
removal angle the burner as shown.
7. Fit the new burner, replacing any damaged or deteriorating sealing
gasket.
8. Reassemble in reverse order. Refer to Frame 41.
9. Check the operation of the boiler. Refer to Frames 31 & 32.
5
6
5
38
Ideal Logic + System - Installation and Servicing
SERVICING
46return thermistor reNEWAL
1. Refer to Frame 42.
2. Unclip the return thermistor from the return pipe and withdraw it from the
boiler.
3. Disconnect the electrical leads from the thermistor.
4. Reconnect the electrical lead to the new thermistor and reassemble in
reverse order, ensuring that the thermistor is securely fitted to the pipe on the
thermistor locator tab as shown.
6. Check the operation of the boiler. Refer to Frames 31 & 32.
4
Thermistor Locator Tab
(with thermistor fitted)
servicing
2
47ignition electrode replacement
1. Refer to Frame 42.
2. Remove the burner. Refer to Frame 45.
3. Unplug the ignition lead from the electrode.
Ignition Electrode
4. Remove the earth lead from the ignition
electrode.
5. Remove the 2 screws holding the ignition
electrode to the combustion chamber.
6. Remove the electrode.
7. Fit the new ignition electrode, using the
new gasket supplied. Check dimensions as
shown.
8. Reassemble in reverse order.
9. Check the operation of the boiler. Refer to
Frames 31 & 32.
e
dg
te
h
aig
Str
Spark Gap
3.5mm
m
3m
Ideal Logic + System - Installation and Servicing
39
SERVICING
48flame detection electrode replacement
1. Refer to Frame 42.
2. Remove the burner. Refer to Frame 45.
3. Unplug the flame detection lead from the
electrode.
Flame Detection Electrode
4. Remove the 2 screws retaining the detection
electrode.
5. Remove the electrode.
6. Fit the new flame detection electrode, using the
new gasket supplied.
7. Reassemble in reverse order.
8. Check the operation of the boiler. Refer to
Frames 31 & 32.
e
dg
te
h
aig
Str
mm
Servicing
.5
12
49Spark generator replacement
1. Refer to Frame 42.
2. Disconnect the leads from the spark
generator.
3. Remove the M5 screws securing the
spark generator to the boiler chassis.
4. Fit the new spark generator and reassemble in reverse order ensuring
the two earth leads are correctly
replaced.
5. Check operation of the boiler. Refer
to Frames 31 & 32.
Spark Generator
4
3
2
2
3
40
Ideal Logic + System - Installation and Servicing
SERVICING
50 gas control valve replacement
1. Refer to Frame 42.
3
2. Unplug the electrical lead connection from the
gas control valve and disconnect the earth wire.
3. Undo the union nut on the outlet of the gas
control valve.
4. Undo the gas inlet pipe union at the inlet to the
gas control valve.
5. Loosen the back nut retaining the valve to the
bracket and withdraw the valve forwards.
6. Fit the new gas control valve ensuring the two
sealing washers are in place and reconnect gas
and electrical connections.
servicing
7. Check operation of the boiler. Refer to Frames
31 & 32.
5
2
4
51 condensate trap/Siphon replacement
1. Refer to Frame 42.
Note: Ensure condensate trap is fully drained before removal.
3
2. Pull off the rubber pipe at the sump drain.
3. Disconnect the condensate drain pipe.
4. Turn the siphon clockwise to disengage and lift to remove.
5. Reassemble in reverse order.
6. When reassembling ensure the trap is full of water.
7. Check operation of the boiler. Refer to Frames 31 & 32.
2
4
Ideal Logic + System - Installation and Servicing
Siphon
41
SERVICING
52 mAIN pcb rEPLACEMENT
Note that production boiler PCBs are factory pre-set to operate for boiler range and output, but when ordering Primary PCB as
a spare, an additional Boiler Chip Card (BCC) MUST also be purchased for your specific boiler range and output.
Note. Fit the earth strap provided with the
PCB to your wrist and secure to a suitable
earth on the boiler chassis.
1. Refer to Frame 42.
2. Note the control knob positions.
3. Remove the 2 screws retaining the
control box cover.
Servicing
4. Carefully lift the 4 retaining clips and
remove control box cover.
5. Unplug all lead connections to the PCB
including the ribbon cable (to facilitate
ribbon cable removal, ease side clips
apart and pull upwards), also where
applicable, push the small plastic clip
with an electrical screwdriver to facilitate
plug removal.
3
4
6. Spring out the two side retaining clips
and pull the PCB upwards to clear the 4
corner retaining posts.
7. Take the new Primary PCB and attach
the appropriate Boiler Chip Card (BCC)
to it (this should correspond to the
output of the boiler: 15kW, 18kW, 24kW
or 30kW).
Note. Ensure the correct
orientation of BCC by placing “TOP” side
up as shown.
8. Re-connect all plug connections.
9. Reassemble in reverse order.
10. a. Turn power on
b.
Displays “8” blue light on/off, “first
digit input”, “second digit input”, “1st
letter appliance type”, i.e. “2”, “4”, “s”
c. Move knob to required setting
(standby, summer, winter)
Note. If no BCC fitted on non
programmed board items a & b will be
displayed then “Boiler Type Card Fault
- Contact Installer” The correct BCC for
this appliance will need to be fitted.
11.Check operation of the boiler. Refer to
Frames 31 & 32.
5
6
5
Plastic
Clip
Ribbon Cable Connection
7
42
Ideal Logic + System - Installation and Servicing
SERVICING
53 User control PCB replacement
Note. Fit the earth strap provided with the PCB
to your wrist and a suitable earth on the boiler
chassis.
1. Refer to Frame 42.
2. Remove the main PCB, refer to Frame 52.
3. Unclip the PCB and lift to clear the mounting
posts.
4. Fit the new PCB ensuring the 4 potentiometer
spindles line up with the control knobs which
must be in a vertical position.
5. Reassemble in reverse order.
6. Check operation of the boiler. Refer to Frames
31 & 32.
3
4
servicing
Potentiometer spindle
PCB
Control Knobs (to be in vertical position)
3G9954
54draining the boiler
CENTRAL HEATING CIRCUIT
1. Refer to Frame 42.
2. Close all the CH water isolating valves on the
boiler inlet.
3. To drain the primary heat exchanger circuit:
Open the drain valve and attach a length of hose
to the CH drain point.
4. After replacing any component on the boiler,
remove the hose, close the drain valve and
open all system isolating valves (re-pressurise
as appropriate) before proceeding to check
operation of the boiler.
5. Check operation of the boiler. Refer to Frames
31 & 32.
Ideal Logic + System - Installation and Servicing
CH
Flow
Gas
CH
Circuit
Drain
CH
Retrun
43
SERVICING
55Pressure Gauge Renewal
1. Refer to Frame 42.
2. Drain the heating system. Refer to
Frame 54.
3. Unscrew the pressure gauge and
discard.
4. Fit new pressure gauge, using suitable
jointing compound.
5. Refill the boiler. Refer to Frame 23.
6. Check operation of the boiler. Refer to
Frames 31 & 32.
56 safety relief VALVE reNEWAL
1. Refer to Frame 42.
Servicing
2. Drain the boiler. Refer to Frame 54.
9
3. Remove the condensate trap/siphon. Refer to
Frame 51.
4. Remove expansion vessel. Refer to Frame 62.
5. Disconnect the electrical connection from the
return thermistor.
6. Disconnect the 22mm pipe connection at the rear
of the pump outlet.
7
7. Pull off the clip retaining the pipe to the heat
exchanger swing the pipe to clear the pump and
remove pipe.
5
8. Undo the safety valve union connection.
9. Withdraw the clip securing the safety valve.
10.Lift safety valve from boiler.
11.Fit the new safety valve and reassemble in
reverse order ensuring the new ‘o’ ring is fitted to
the top of the return pipe.
8
10
12.Refill boiler. Refer to Frame 23. Check operation
of boiler. Refer to Frames 31 & 32.
6
57Pump automatic air vent replacement
Dust Cap
1. Refer to Frame 42.
5
2. Drain the boiler. Refer to Frame 54.
3. Remove the expansion vessel. Refer to Frame 62.
4. Firstly, increase access area by disconnecting the 22mm pipe connection
at top of pump chamber and bottom of heat exchanger and remove pipe
Refer to Frame 56 (no’s 5,6 & 7).
5. 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.
6. Reassembly is the reverse of the above. Ensure the air vent head ‘o’ ring
seal is in place when refitting and the new ‘o’ ring is fitted to the return pipe
top connection.
7. Ensure the air vent cap is loose.
8. Refill the boiler. Refer to Frame 23. Check for leaks around the new air
vent joint.
9. Check the operation of the boiler. Refer to Frames 31 & 32.
44
Ideal Logic + System - Installation and Servicing
SERVICING
58Pump Head Replacement
3
1. Refer to Frame 42.
2. Drain the boiler. Refer to Frame 54.
4
3. Disconnect the electrical lead from the pump.
4. Remove the 4 Allen screws retaining the pump
head.
5. Remove the pump head.
6. Fit the new pump head.
7. Reassemble in reverse order.
8. Refill the boiler. Refer to Frame 23.
9. Check operation of the boiler. Refer to Frames 31
& 32.
59 CH Water Pressure sensor Replacement
1. Refer to Frame 42.
3. Remove condensate trap/siphon. Refer
to Frame 51.
6
4. Using a suitable tool pull out the
retaining clip.
5. Pull the pressure sensor upwards to
remove.
6. Unplug the electrical connection and
transfer to the new pressure sensor.
7. Push the new pressure sensor onto the
rear pump housing and fit retaining clip.
8. Reassemble in reverse order.
4
5
9. Refill the boiler. Refer to Frame 23.
servicing
2. Drain the boiler. Refer to Frame 54.
10.Check Operation of the boiler. Refer to
Frames 31 & 32.
60 CONTROL / NO FLOW Thermistor Replacement
1. Refer to Frame 42.
2. Drain down the boiler. Refer to Frame 54.
3. Unplug the electrical lead.
4. Unscrew the thermistor (to facilitate removal a
13mm socket spanner should be used).
5. Fit the new thermistor using the sealing washer
provided.
6. Reassemble in the reverse order.
3
4
7. Refill the boiler. Refer to Frame 23.
8. Check the operation of the boiler. Refer to Frames
31 & 32.
Ideal Logic + System - Installation and Servicing
45
SERVICING
61 heat engine reNEWAL
Refer also to Frame 5 - ‘Boiler Exploded View’
IMPORTANT
Before starting the removal procedure, protect the gas and electrical controls with a waterproof sheet or plastic bag.
1. Refer to Frame 42.
12.Undo the flow pipe union nut and remove pipe.
2. Drain the boiler. Refer to Frame 54.
13.Remove the condensate rubber pipe. Refer to Frame 51, no.
2.
3. Remove the fan / venturi assembly and place on one side.
Refer to Frame 43.
14.Remove the two heat exchanger fixing screws.
4. Remove the burner and place on one side. Refer to Frame 15.Remove the Heat exchanger.
45.
16.Reassemble in reverse order, ensuring the heat exchanger
LH retaining bracket is correctly positioned. Replace any
5. Remove the ignition and detection electrodes. Refer to
new ‘o’ rings supplied with new heat exchanger and replacing
Frames 47 & 48.
gaskets or seals if any sign of damage is evident. When
6. Remove the spark generator. Refer to Frame 49.
replacing the spring clips located on both the flow and return
7. Remove the gas valve. Refer to Frame 50.
pipe connections, ensure clip is oriented to correctly match
8. Remove the expansion vessel. Refer to Frame 62.
connecting pipe diameters.
9. Remove the control/no flow thermistor. Refer to Frame 60. 17.Ensure the trap/siphon is filled with water. Refer to Frame 51.
Servicing
10.Remove the 2 M5 screws retaining the gas valve mounting
bracket and transfer bracket to the new heat exchanger.
11.Undo the inlet pipe union nut and remove the retaining
spring clip and remove pipe.
18.Refill the boiler. Refer to Frame 23.
19.Check operation of the boiler. Refer to Frames 31 & 32.
14
10
11
12
46
Ideal Logic + System - Installation and Servicing
SERVICING
62expansion vessel Recharging & replacement
RECHARGING
1. Remove the charge point cover.
Recharge
Point
2. Recharge the tank pressure to 0.75 bar.
3. Re-assemble in reverse order
4. Check operation of the boiler. Refer to Frames
31 & 32.
7
REPLACEMENT
5. Refer to Frame 42.
6. Drain the boiler CH circuit. Refer to Frame 54.
7. Unscrew the union nut on the vessel water
connection pipe.
8. Support the expansion vessel and unscrew
the 2 screws from the securing clamp, located
on the top of the boiler, and remove. (Note the
position of the bracket on the vessel)
8
9. Remove the expansion vessel.
10.Fit the new expansion vessel.
11.Reassemble in reverse order.
servicing
12.Refill the boiler. Refer to Frame 23.
13.Check operation of the boiler. Refer to Frames
31 & 32.
63 Boiler sealing panel seal replacement
1. Refer to Frame 42.
2. Remove the old seal from the casing and
thoroughly clean the casing surfaces.
3. Fit the new seal, ensuring the bottom joint
provides an air tight seal.
5. Reassemble in reverse order.
6. Check operation of the boiler. Refer to
Frames 31 & 32.
Note. Ensure that the boiler front panel is
correctly sealed, compressing the seal
to make an airtight joint.
Ideal Logic + System - Installation and Servicing
47
Fault finding
FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING
64fault finding chart MAIN MENU
In order to assist fault finding the boiler has a 7 segment display. The key to the display codes is as follows:
ALTERNATING ‘L’ and ‘1’
GO TO FRAME 65 FLOW TEMPERATURE OVERHEAT LOCKOUT
or NO WATER FLOW LOCKOUT
ALTERNATING ‘L’ and ‘2’
GO TO FRAME 66 IGNITION LOCKOUT
ALTERNATING ‘L’ and ‘5’
5 RESETS WITHIN 15 MINS TURN POWER OFF AND ON
ALTERNATING ‘L’ and ‘6’
GO TO FRAME 67 FALSE FLAME LOCKOUT
ALTERNATING ‘F’ and ‘0’
BCC (BOILER CHIP CARD) NOT FITTED
SEE FRAME 52
ALTERNATING ‘F’ and ‘1’
GO TO FRAME 68 LOW WATER PRESSURE
ALTERNATING ‘F’ and ‘2’
GO TO FRAME 69 FLAME LOSS
ALTERNATING ‘F’ and ‘3’
GO TO FRAME 70 FAN FAULT
ALTERNATING ‘F’ and ‘4’
GO TO FRAME 71 CONTROL/NO FLOW THERMISTOR FAULT
ALTERNATING ‘F’ and ‘5’
GO TO FRAME 72 RETURN THERMISTOR FAULT
ALTERNATING ‘F’ and ‘6’
GO TO FRAME 73 OUTSIDE SENSOR FAULT
ALTERNATING ‘F’ and ‘7’
LOW MAINS VOLTAGE CONTACT ELECTRICITY PROVIDER
ALTERNATING ‘F’ and ‘9’
PCB FAULT **REPLACE PCB
ALTERNATING ‘c’ and ‘2’
GO TO FRAME 74 BCC FAULT (BOILER CHIP CARD)
ALTERNATING ‘c’ and ‘0’
RESET BOILER
No CH
GO TO FRAME 75
No hw
GO TO FRAME 77
No Display
GO TO FRAME 76
Note that production boiler PCBs are factory pre-set to operate for boiler range and output, but when ordering Primary PCB as a
spare, an additional Boiler Chip Card (BCC) MUST also be purchased for your specific boiler range and output.
**If PCB replaced as a spare ensure that the BCC (boiler chip card - small plastic part) is fitted to the PCB otherwise replace PCB.
RESET PROCEDURE - To reset boiler, turn mode knob to reset position and immediately turn knob back to required setting.
48
Ideal Logic + System - Installation and Servicing
Fault finding
Is the Boiler and CH System filled with water and all
isolation and radiator valves open?
no
Fill and vent the system and open all
isolation valves, then reset boiler
yes
Check that the Pump is rotating freely. Is
the Differential now below 20°C?
FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING
65 aLTERNATING ‘L’ AND ‘1’ - FLOW TEMPERATURE OVERHEAT LOCKOUT OR nO
wATER fLOW LOCKOUT
yes
If the PCB has been replaced check a BCC has been
fitted then reset the boiler.
Is the Flow/Return Differential across the Boiler in
excess of 30°C?
no
NO
Check the Control/No Water Flow and Return
Thermistors (Refer to Frame 46 & 60)
yes
Replace the Pump,
then reset boiler
OK, now
reset boiler
RESET PROCEDURE - To reset boiler, turn mode knob to reset position and immediately turn knob back to required setting.
66 aLTERNATING ‘L’ AND ‘2’ - Ignition lockout
If the boiler is reset does the boiler
ignite for a short time and then
extinguish?
no
Is the Gas Pressure available at
the Boiler Inlet (>18 mbar)?
no
Check gas supply and
rectify fault
yes
yes
Is 215Vdc supply available at the
Gas Valve? (* See note)
Check the detection electrode
and associated harness for:
continuity, visual condition and
position (Refer to Frame 48).
Check if the condensate pipe is
blocked.
Check flue is installed correctly.
Replace as necessary
no
yes
Unplug gas valve. Is resistance
between outside pins 4KΩ (±2)?
no
Check wiring connection
from gas valve to PCB for
continuity. If the wiring is
OK then replace the PCB
Replace Gas Valve
yes
Check spark generator and
associated harness for: continuity
and visual condition. (Refer to
Frame 49) Are these functioning
correctly?
no
Replace Spark
Generator and harness
as necessary
yes
Check siphon and condensate
drain pipe work for blockage and
rectify if necessary. Boiler now
working OK?
NO
YES
Check ignition electrode and
associated harness for: continuity,
visual condition and position.
(Refer to Frame 47) Are these
functioning correctly?
no
Replace Ignition
Electrode and
associated harness as
necessary
Replace Gas Valve
* Note: due to the wave form of the rectified voltage, the reading will vary depending on the type of meter used to measure the
value. In general terms a reading greater than 150V indicates that the correct voltage is supplied to the gas valve.
RESET PROCEDURE - To reset boiler, turn mode knob to reset position and immediately turn knob back to required setting.
Ideal Logic + System - Installation and Servicing
49
Fault finding
FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING
67 aLTERNATING ‘L’ AND ‘6’ - False Flame Lockout
Check routing and integrity of internal boiler
wiring is OK. Check condition of Flame Sense
Electrode and replace if deteriorated.
YES
Reset the boiler, does Boiler Work OK?
NO
Separate the flame detection electrode in-line
connector. Is there continuity between the terminals
pins connected to the electrode?
yes
Replace Flame Detection Electrode
no
Check routing and integrity of internal boiler wiring.
RESET PROCEDURE - To reset boiler, turn mode knob to reset position and immediately turn knob back to required setting.
68 aLTERNATING ‘F’ AND ‘1’ - Low Water Pressure
Is 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 sensor secure?
NO
Fill and vent the system and open all isolation valves
NO
Re-fit connections
yes
Replace water pressure sensor
69 aLTERNATING ‘F’ AND ‘2’ - Flame Loss
Does the boiler ignite for a short
time and then extinguish?
no
Is the Gas Pressure available at
the Boiler Inlet (18 mbar)?
no
yes
Is 215Vdc supply available at the Gas
Valve while the flame is on? (* See note)
yes
Check the detection electrode and
associated harness for: continuity,
visual condition and position (Refer
to Frame 48). Check if condensate
pipe is blocked. Check if flue is
blocked.
Replace as necessary
* Note: due to the wave form of
the rectified voltage, the reading
will vary depending on the type of
meter used to measure the value.
In general terms a reading greater
than 150V indicates that the correct
voltage is supplied to the gas valve.
yes
Check spark generator and associated
harness for: continuity and visual
condition. (Refer to Frame 49) Are these
functioning correctly?
yes
Check ignition electrode and associated
harness for: continuity, visual condition
and position. (Refer to Frame 47) Are
these functioning correctly?
no
no
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
yes
Check siphon and condensate drain pipe
work for blockage and rectify if necessary.
Boiler now working OK?
no
Replace Gas Valve
70 aLTERNATING ‘F’ AND ‘3’ - 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 230Vac at the Blue and Brown connections
to the 3 way connection on the Fan?
50
NO
NO
YES
Rectify Wiring & connections
Replace PCB
Replace Fan
Ideal Logic + System - Installation and Servicing
Fault finding
Remove the Control/No Flow Thermistor from the
Heat Exchanger and disconnect the wires.
Check the resistance using a suitable multimeter
connected across the thermistors terminal pins.
At 25 oC expect
9,700 -10,300
At 60 oC expect
2,400- 2,600
Ohms
At 85 C expect
1,000- 1,100
Ohms
o
no
Fit a new Thermistor
yes
Is there continuity between the PCB and Thermistor?
Ohms
yes
Replace PCB
Is the Thermistor value correct?
no
Check and replace wiring as
necessary
72 aLTERNATING ‘F’ AND ‘5’ - Return Thermistor Fault
Remove the Return Thermistor from the CH Return
Pipe and disconnect the wires.
Check the resistance using a suitable multimeter
connected across the thermistors terminal pins.
At 25 C expect
9,700 -10,300
At 60 oC expect
2,400- 2,600
Ohms
At 85 C expect
1,000- 1,100
Ohms
o
o
no
Fit a new Thermistor
yes
Ohms
Is there continuity between the PCB and Thermistor?
yes
no
Check and replace wiring as
necessary
Replace PCB
Is the Thermistor value correct?
73 aLTERNATING ‘F’ AND ‘6’ - Outside sensor fault
Is the wiring securely connected at both the boiler and
Outside Sensor?
yes
no
no
Securely connect the wiring at both the
boiler and Outside Sensor
Fit a new Outside Sensor
Disconnect the wires to the outside sensor.
Check the resistance using a suitable multimeter
connected across the Outside Sensors terminal pins.
At 0 oC
expect
31,000 -35,000
At 15 oC expect
15,000 -16,500
Ohms
At 30 C expect
7,700- 8,500
Ohms
o
yes
Ohms
Is the wiring securely connected between the
incoming terminal block boiler connection of
the Outside Sensor and the PCB?
yes
no
Securely connect the wiring at
the Terminal Block and the PCB
Replace PCB
Is the Outside Sensor value correct?
74 aLTERNATING ‘c’ AND ‘2’ - BCC fault (Boiler CHIP card)
Is the correct BCC for the boiler securely inserted into the
slot at the front left of the PCB?
(identified by the label on the BCC)
no
Note. Ensure the correct orientation of BCC by
placing “TOP” side up.
yes
Replace the BCC with a new BCC (that is correct for the
boiler). After switching power on and ‘c0’ being shown,
press reset. Is ‘c2’ still shown?
Securely insert the correct BCC for the boiler
into the PCB and after switching power on and
‘c0’ being shown, reset boiler.
YES
Replace PCB
RESET PROCEDURE - To reset boiler, turn mode knob to reset position and immediately turn knob back to required setting.
Ideal Logic + System - Installation and Servicing
51
FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING
71ALTERNATING ‘F’ AND ‘4’ - CONTROL / NO Flow Thermistor Fault
Fault finding
FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING
75nO ch oPERATION
no
Move the mode knob to the ON position
Is the mode knob in the ON position?
yes
Are the Timer and the Room Thermostat or cylinder
thermostat switched on?
yes
no
Switch the Timer, Room Stat and Cylinder Stat On
no
Open the Radiator Valves
Are the Radiator Valves Open?
yes
Is there 230Vac at (A)?
yes
NO
Check wiring from
terminal strip to
PCB.
There is no Voltage from the
Timer/Room Stat. This is not
boiler fault. Ensure Voltage is
supplied to boiler by rectifying
external wiring.
A
L
N
76 No Display
no
Is there 230Vac to the boiler at L and N? see Frame 75
Supply power to the boiler
yes
Is the wiring from the terminal block to the Main PCB
connected securely?
no
Connect the wiring from the terminal block to the
Main PCB securely.
no
Connect the ribbon from the main PCB to the User
Interface PCB securely
yes
Is the ribbon cable from the main PCB to the User
Interface PCB connected securely?
yes
Is ribbon cable damaged?
no
yes
Replace the
User Interface
PCB
Replace ribbon cable
77 NO HW
Is the cylinder stat calling for heat?
yes
no
no
Is DHW timer on?
yes
no
Is boiler mode knob in the ON position?
yes
Is there 230V at (A)? Refer to Frame 75
no
Adjust cylinder stat
Switch timer on
Move the mode knob to the ON position
Check system controls and wiring
yes
Check wiring from terminal strip to PCB.
52
Ideal Logic + System - Installation and Servicing
SPARE parts
When replacing any part on this appliance use only spare parts that you can be assured conform to the safety and performance
specification that we require. Do not use reconditioned or copy parts that have not been clearly authorised by Ideal. Failure to do so
could affect safety or performance of this appliance.
Comprehensive spares parts information and details of approved Ideal Parts Distributors are available on www.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
Ideal Logic + System - Installation and Servicing
53
SPARE parts
54
Ideal Logic + System - Installation and Servicing
Benchmark Commissioning and
Servicing Section
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 guarantee the boiler needs to be registered with the
manufacturer within one month of the installation.
To maintain the boiler guarantee it is essential that the boiler is serviced annually
by a Gas Safe registered engineer who has been trained on the boiler installed.
The service details should be recorded on the Benchmark Service Interval
Record and left with the householder.
www.centralheating.co.uk
© Heating and Hotwater Industry Council (HHIC)
Ideal Logic + System - Installation and Servicing
55
GAS BOILER SYSTEM COMMISSIONING CHECKLIST
This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating
compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.
CONTROLS
Programmable room thermostat
Optimum start control
Combination Boiler
Fitted
Fitted
Fitted
Automatic bypass to system
Fitted
Boiler interlock
ALL SYSTEMS
Yes
Yes
CENTRAL HEATING MODE
OR
mbar
OR
mbar
Central heating return temperature
COMBINATION BOILERS ONLY
Yes
Yes
DOMESTIC HOT WATER MODE
OR
mbar OR
mbar
Cold water inlet temperature
Yes
Temperature
CONDENSING BOILERS ONLY
Yes
ALL INSTALLATIONS
AND
²
Ratio
AND
²
Ratio
Yes
Yes
Yes
Yes
* Allinstallations in England and Wales must be
to Local Authority Building Control (LABC) either directly or through a
Competent Persons Scheme. A Building Regulations Compliance
will then be issued to the customer.
www.centralheating.co.uk
SERVICE RECORD
It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed.
Service Provider
SERVICE 01
SERVICE 02
AND
(Where Possible)
AND
AND
²%
²%
(Where Possible)
Signature
Signature
SERVICE 03
SERVICE 04
AND
(Where Possible)
AND
AND
²%
²%
(Where Possible)
Signature
Signature
SERVICE 05
SERVICE 06
AND
(Where Possible)
AND
(Where Possible)
Signature
SERVICE 07
SERVICE 08
AND
AND
(Where Possible)
Signature
SERVICE 09
SERVICE 10
AND
Signature
AND
AND
AND
²%
²%
Signature
(Where Possible)
AND
AND
²%
²%
Signature
(Where Possible)
AND
²%
²%
AND
AND
(Where Possible)
AND
²%
²%
²%
²%
²%
²%
²%
²%
²%
²%
Signature
* Allinstallations in England and Wales must be
to Local Authority Building Control (LABC) either directly or through a
Competent Persons Scheme. A Building Regulations Compliance
will then be issued to the customer.
© Heating and Hotwater Industry Council (HHIC)
www.centralheating.co.uk
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 7967.
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
CO2 = carbon dioxide
O2 = oxygen
Combustion Ratio = The CO reading measured in ppm divided by the CO2 reading first converted to ppm
ppm = parts per million
GS(I&U)R = Gas Safety (Installation and Use) Regulations
*Setting to Minimum Rate:
1. Turn the CH temperature control knob into the 10 O’clock position.
2. Create a heat demand by ensuring that the system controls are requesting heat and the boiler
Mode Knob is in the On Position.
3. Within an overall time of 3 seconds, turn the CH temperature control knob fully clockwise, back to
10 O’clock and then fully clockwise again.
4. “S” will be shown on the display and the boiler output will be reduced to minimum.
5. The boiler will remain at minimum rate for 5 minutes before reverting to normal operation.
58
Ideal Logic + System - Installation and Servicing
Start
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.
Note. Do not insert analyser probe
during this period to avoid possible
flooding of sensor.
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.
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
O2 more than or
equal to 20.6% OR CO2
less than or equal to
0.2%?
No
Yes
Is
O2 more than or
equal to 20.6% OR CO2
less than or equal to
0.2%?
Check CO level and Combustion Ratio
at Maximum Gas Rate
Yes
With boiler still set at maximum gas rate,
insert analyser probe into flue gas
sampling point. Allow readings to stabilise
before recording.
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.
No
Yes
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/CO2
ratio less than
0.0040?
Is
CO level less
than 350ppm AND CO/CO2
ratio less than
0.0040?
Set Boiler to Minimum Gas Rate
(*see opposite page)
In accordance with boiler instructions, set boiler to
operate at minimum rate (to minimum load condition).
Allow sufficient time for combustion to stabilise.
Yes
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
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
maximum AND minimum rate before contacting Ideal.
No
Is
CO level less
than 350ppm AND CO/CO2
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.
Ideal Logic + System - Installation and Servicing
59
For additional fault finding advice please visit Ideal’s website
www.idealboilers.com
Technical Training
The Ideal Technical Training Centre offers a series of
first class training courses for domestic, commercial and
industrial heating installers, engineers and system specifiers.
For details of courses please ring:................ 01482 498 432
Manufactured under an ISO 9001
registered quality management system
The code of practice for the installation,
commissioning & servicing of central heating systems
FM 59915
Ideal Boilers Ltd., P.O. Box 103, National Ave, Kingston upon
Hull, HU5 4JN. Telephone: 01482 492 251 Fax: 01482 448 858.
Registration No. London 322 137.
Ideal Stelrad Group 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 Installer Helpline: 01482 498 663
www.idealboilers.com
USER GUIDE
Logic+ SYSTEM
15 18 24 30
For Installation Guide see reverse of book
When replacing any part on this appliance, use only spare parts that you can be
assured conform to the safety and performance specification that we require.
Do not use reconditioned or copy parts that have not been clearly authorised by Ideal.
For the very latest copy of literature for specification and maintenance practices visit our
website www.idealboilers.com where you can download the relevant information in PDF format.
For any queries please ring the
ideal consumer helpline : 01482 498660
NOTE. BOILER RESET PROCEDURE To reset boiler, turn mode control knob to reset position and immediately turn knob back to required setting.
Introduction
Minimum Clearances
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.
Bottom clearance
Bottom clearance after installation can be reduced to 5mm.
The Logic + System is a wall mounted, room sealed, condensing
system boiler, featuring full sequence automatic spark ignition and fan
assisted combustion.
Safety
Current Gas Safety (Installation & Use)
Regulations or rules in force.
In your own interest, and that of safety, it is the law that this boiler
must be installed by a Gas Safe Registered Engineer, in accordance
with the above regulations.
Clearances of 165mm (6 1/2”) above, 100mm (4”) below,
2.5mm (1/8”) at the sides and 450mm (17 3/4”) at the front of
the boiler casing must be allowed for servicing.
This must be obtained with an easily removable panel, to
enable the consumer to view the system pressure gauge, and
to provide the 100mm clearance required for servicing.
To light the boiler. Refer to Frame 1
If a programmer is fitted refer to separate instructions for the
programmer before continuing.
1. Check that the electricity supply to boiler is
off.
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
2. Set the mode control knob (B) to ‘Off’.
“Domestic Gas Installations”, the current Building Regulations and
3. Set the Central Heating temperature control (A) to ‘max’.
reference should be made to the current ETCI rules for electrical
4. Switch ON electricity to the boiler and check that all
installation.
external controls, e.g. programmer and room thermostat,
It is essential that the instructions in this booklet are strictly followed,
are ON.
for safe and economical operation of the boiler.
5. Set the mode control knob to ON.
Electricity Supply
The boiler will commence the ignition sequence supplying heat
to the central heating, if required.
Supply: 230 V ~ 50 Hz. The fusing should be 3A.
Note. In normal operation the boiler status display (C) will
show codes:
This appliance must be earthed.
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 or in IE a Registered Gas Installer
(RGII).
 Under NO circumstances should any of the sealed components on
this appliance be used incorrectly or tampered with.
 This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have been given
supervision or instructions concerning use of the appliance by a
person responsible for their safety.
 Children should be supervised to ensure that they do not play with
the appliance.
Standby - no demand for heat.
Heat being supplied.
Boiler frost protection - boiler will fire if temperature is
below 5 degrees C.
During normal operation the burner on indicator (D) will remain
illuminated when the burner is lit.
Note: If the boiler fails to light after five attempts the fault code
will be displayed.
RESET PROCEDURE
To reset boiler, turn the mode control knob (B) to reset position
and immediately turn knob back to ON. The boiler will repeat
the ignition sequence. If the boiler still fails to light consult
a Gas Safe Registered Engineer or in IE a Registered Gas
Installer (RGII).
In cases of repeated or continuous shutdown a Gas Safe Registered
Engineer or in IE a Registered Gas Installer (RGII) should be called
to investigate and rectify the condition causing this and carry out an
operational test. Only the manufacturers original parts should be used
for replacement.
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 Stelrad Group 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
2
Ideal Logic + System - User’s
Frost Protection
Operation
Note. The pump will operate briefly as a self-check once every
24 hours, regardless of system demand.
Control of Water Temperature
The boiler controls the central heating radiator temperature to
a maximum of 80oC, adjustable via the CH temperature control
(A).
The Logic + System is a high efficiency condensing boiler
which is most efficient when operating in condensing mode.
If no system frost protection is provided and frost is likely during a
short absence from home, leave the heating controls (if fitted) at a
reduced temperature setting. For longer periods, the entire system
should be drained.
If the system includes a frost thermostat then, during cold weather,
the boiler should be turned OFF at the time switch (if fitted) ONLY.
The mains supply should be left switched ON, with the boiler
thermostat left in the normal running position.
Boiler Overheat Protection
The boiler will operate in this mode if the CH temperature
control (A) is set to the ‘e’ position (economy mode). This
control should be set to maximum for very cold periods.
The boiler controls will shut down the boiler in the event of
overheating. Should this occur, a fault code
will be displayed.
Refer to fault chart.
Weather Compensation
When the Weather Compensation option is fitted to the system
then the CH Temperature Control (A) 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.
To Shut Down the Boiler
Flame Failure
Should this occur a fault code
chart.
will be displayed. Refer to fault
Loss of System Water Pressure
The gauge (E) 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 then a water leak may be indicated. In
this event conduct the re-pressurising procedure as follows:
Re-pressurise via the filling loop to 1 bar (if unsure contact your
installer), turn off the tap on the filling loop and turn switch (B) to the
reset position and then back on again to reset the boiler.
Set the mode control knob to OFF.
To Relight the Boiler
If unable to do so or if the pressure continues to drop after filling a
Gas Safe Registered Engineer or in IE a Registered Gas Installer
(RGII) should be consulted.
Repeat the procedure detailed in ‘To light the boiler’.
Note. THE BOILER WILL not OPERATE if pressure has
reduced to LESS THAN 0.3 BAR UNDER THIS CONDITION.
1
BOILER controls
Legend
A. CH Temperature Control
D. Burner ‘on’ Indicator
B. Mode Control
E. Pressure Gauge
C. Boiler Status
F. Condensate Drain
A
E
Ideal Logic + System - User’s
G C
D
G. Economy Mode
B
F
3
Condensate Drain
Escape of gas
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:
Do NOT search for gas leaks with a naked flame.
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 an “L2” fault code. If the
appliance is reset it will make a gurgling noise prior to it
locking out on a failed ignition “L2” code.
Should a gas leak or fault be suspected contact the
National Gas Emergency Service without delay. Telephone
0800 111 999
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 appliance should be serviced at least once a year by
a Gas Safe Registered Engineer or in IE a Registered Gas
Installer (RGII).
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.
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, reset the appliance. (Refer to “To Light the
boiler”)
5. If the appliance fails to ignite, call your Gas Safe
Registered engineer.
Preventative solutions
During cold weather, set the boiler stat to maximum, (Must
return to original setting once cold spell is over)
Place the heating on continuous and turn the room stat down
to 15ºC overnight or when unoccupied. (Return to normal after
cold spell).
4
Ideal Logic + System - User’s
Points for the BOILER User
Note. 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.
Troubleshooting
NO CENTRAL HEATING
NO HOT WATER
Check the mains switch (fused
spur) is turned on and ensure
mode control knob (B) is in the
ON position
Check the mains switch (fused
spur) is turned on and ensure
mode control knob (B) is in the
ON position
Check the programmer is in
an “ON” position and the room
thermostat is turned up
Check the programmer is in an
“ON” position and the cylinder
thermostat is turned up
Does the boiler operate and
provide central heating?
YES
NO
Does the boiler operate and
provide hot water?
YES
Check the time settings on the
programmer are as you require
and adjust if necessary
Check the time settings on the
programmer are as you require
and adjust if necessary
See boiler “Operation Modes”
and “Fault Codes” section. If “0”
is displayed then contact a Gas
Safe Registered Engineer or in
IE a Registered Gas Installer
(RGII)
See boiler “Operation Modes”
and “Fault Codes” section. If “0”
is displayed then contact a Gas
Safe Registered Engineer or in
IE a Registered Gas Installer
(RGII)
Ideal Logic + System - User’s
NO
5
OPERATION MODES
DISPLAY CODE ON BOILER
DESCRIPTION
The boiler is in standby mode awaiting either a central heating call or hot water demand.
The boiler has a call for central heating / hot water but the appliance has reached the desired
temperature set on the boiler.
The boiler is operating for central heating / hot water.
The boiler is operating in frost mode.
continued . . . . . .
6
Ideal Logic + System - User’s
fault codes
DISPLAY CODE ON BOILER
DESCRIPTION
ACTION
Boiler Chip Card (BCC)
Not Fitted
Please contact Ideal (if under warranty) or alternatively a Gas Safe
Registered Engineer if outside of the warranty period. In IE contact a
Registered Gas Installer (RGII).
Outside Sensor Failure
Reset the appliance - if the boiler fails to operate then please contact
Ideal (if under warranty) or alternatively a Gas Safe Registered
Engineer if outside of the warranty period. In IE contact a Registered
Gas Installer (RGII).
Low Mains Voltage
Contact a qualified electrician or your electricity provider.
PCB Fault
PCB Fault. Please contact Ideal (if under warranty) or alternatively a
Gas Safe Registered Engineer if outside of the warranty period. In IE
contact a Registered Gas Installer (RGII).
5 Boiler Resets in 15 minutes
1.Turn power off and on at the fused spur.
2.If the boiler fails to operate please contact Ideal (if under warranty)
or alternatively a Gas Safe Registered Engineer if outside of the
warranty period. In IE contact a Registered Gas Installer (RGII).
False Flame Lockout
Reset the appliance - if the boiler fails to operate then please contact
Ideal (if under warranty) or alternatively a Gas Safe Registered
Engineer if outside of the warranty period. In IE contact a Registered
Gas Installer (RGII).
BCC Activation Fault
Reset the appliance - if the boiler fails to operate then please contact
Ideal (if under warranty) or alternatively a Gas Safe Registered
Engineer if outside of the warranty period. In IE contact a Registered
Gas Installer (RGII).
BCC Fault
Low Water Pressure
Check system pressure is between 1 & 1.5bar on the pressure gauge.
If the boiler fails to operate then please contact Ideal (if under warranty)
or alternatively a Gas Safe Registered Engineer if outside of the
warranty period. In IE contact a Registered Gas Installer (RGII).
Flow Temperature Overheat
Flame Loss
1.Check other gas appliances in the house are working to confirm a
supply is present in the property.
2.If other appliances do not work or there are no other appliances,
check the gas supply is on at the meter and/or pre payment meter
has credit. If the boiler fails to operate then please contact Ideal (if
under warranty) or alternatively a Gas Safe Registered Engineer
if outside of the warranty period. In IE contact a Registered Gas
Installer (RGII).
Ideal Logic + System - User’s
Fan Fault
Reset the appliance - if the boiler fails to operate then please contact
Ideal (if under warranty) or alternatively a Gas Safe Registered
Engineer if outside of the warranty period. In IE contact a Registered
Gas Installer (RGII).
Control / No Flow Thermistor
Reset the appliance - if the boiler fails to operate then please contact
Ideal (if under warranty) or alternatively a Gas Safe Registered
Engineer if outside of the warranty period. In IE contact a Registered
Gas Installer (RGII).
Return Thermistor
Reset the appliance - if the boiler fails to operate then please contact
Ideal (if under warranty) or alternatively a Gas Safe Registered
Engineer if outside of the warranty period. In IE contact a Registered
Gas Installer (RGII).
7
Ideal Consumer Helpline
Tel: 01482 498660
www.idealboilers.com
Ideal Stelrad Group 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, P.O. Box 103, National Ave, Kingston Upon Hull, HU5 4JN.
Tel. 01482 492251 Fax. 01482 448858. Registration No. London 322 137.
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