United Kingdom
en
Installation and Service Manual
Gas Fired Wall Mounted Powered Flue Condensing Boiler
MainEco Heat
15 - 18 - 24
These instructions include the Benchmark Commissioning Checklist
and should be left with the user for safe keeping.
They must be read in conjunction with the Flue Installation Guide.
1
Introduction
Model Range
Building Regulations and the Benchmark Commissioning
Checklist
Baxi MainEco Heat 15
G.C.No 41-470-15
Baxi MainEco Heat 18
G.C.No 41-470-16
Baxi MainEco Heat 24
G.C.No 41-470-17
Building Regulations (England & Wales) require notification of the
installation of a heating appliance to the relevant Local Authority
Building Control Department. This can be achieved via a
Competent Persons Self Certification Scheme as an option to
notifying the Local Authority directly.
The Health & Safety Executive operates the ‘Gas Safe Register’, a selfcertification scheme for gas heating appliances.
This company is a member of the Benchmark initiative and fully
supports the aims of the programme. Its aim is 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.
Building Regulations require that installations should comply with
manufacturer's instructions. It is therefore important that the
commissioning checklist is completed by the installer. The relevant
section of Building Regulations only relates to dwellings. Therefore the
checklist only applies if the appliance is being installed in a dwelling or
some related structure.
The flowchart opposite gives guidance for installers on the process
necessary to ensure compliance with Building Regulations.
0086
The Benchmark Scheme
Benchmark places responsibilities on both manufacturers and installers.
The purpose is to ensure that customers are provided with the correct
equipment for their needs, that it is installed, commissioned and
serviced in accordance with the manufacturer’s instructions by
competent persons and that it meets the requirements of the
appropriate Building Regulations. The Benchmark Checklist can be
used to demonstrate compliance with Building Regulations and should
be provided to the customer for future reference.
ISO 9001
FM 00866
Installers are required to carry out installation, commissioning and
servicing work in accordance with the Benchmark Code of Practice
which is available from the Heating and Hotwater Industry Council who
manage and promote the Scheme. Visit www.centralheating.co.uk for
more information.
You have just purchased one of our appliances and we thank you for the trust you have placed in our products. Please note that
the product will provide good service for a longer period of time if it is regularly checked and maintained. Our customer support
network is at your disposal at all times.
2
MainEco Heat
7215845 - 01 (08/14)
Installer Notification Guidelines
1
Installer Notification Guidelines
Choose Building
Regulations Notification
Route
Competent Person's
Self Certification Scheme
Building Control
Install and Commission this
appliance to manufacturer's
instructions
Contact your relevant Local
Authority Building Control
(LABC) who will arrange
an inspection or contact
a government approved
inspector
Complete the
Benchmark Checklist
If you notify via the ‘Gas Safe
Register’, the register will issue
the Building Regulations
certificate on members’ behalf
Install and Commission this
appliance to manufacturer's
instructions
Scheme Members only
Call ‘Gas Safe Register’ on:
0800 408 5577
or log onto:
www.gassaferegister.co.uk
within 10 days
Complete the
Benchmark Checklist
You must ensure that the
certificate number issued by
the ‘Gas Safe Register’ is written
onto the Benchmark Checklist
‘Gas Safe Register’ will issue a
Building Regulations Compliance
Certificate to the property owner
and inform the relevant LABC
7215845 - 01 (08/14)
LABC will record the data
and will issue a
certificate of compliance
MainEco Heat
3
Contents
Contents
1
Introduction
1.1
1.2
1.3
1.4
1.5
1.6
2
Safety
2.1
2.2
2.3
3
4
7
8
8
8
9
9
10
10
10
10
11
12
General Safety Instructions
Recommendations
Specific Safety Instructions
2.3.1
Handling
12
12
13
13
14
3.1
3.2
3.3
14
15
16
Technical Data
Dimensions and Connections
Electrical Diagram
Description of the Product
17
4.1
4.2
4.3
4.4
17
18
19
20
20
21
21
21
General Description
Operating Principle
Main Components
Control Panel Description
4.4.1
User Interaction Controller
Standard Delivery
Accessories & Options
4.6.1
Optional Extras
Before Installation
22
5.1
5.2
22
22
22
23
23
23
23
23
24
24
25
26
26
26
26
26
27
29
30
32
5.3
4
7
Technical Specifications
4.5
4.6
5
General
Additional Documentation
Symbols Used
Abbreviations
Extent of Liabilities
1.5.1
Manufacturer’s Liability
1.5.2
Installer’s Liability
Homologations
1.6.1
Certifications
1.6.2
Directives
1.6.3
Standards
Installation Regulations
Installation Requirements
5.2.1
Gas Supply
5.2.2
Electrical Supply
5.2.3
Hard Water Areas
5.2.4
Bypass
5.2.5
System Control
5.2.6
Treatment of Water Circulating Systems
5.2.7
System Details - General
5.2.8
Low Head Installation / Open
5.2.9
Sealed Systems Details
Choice of the Location
5.3.1
Location of the Appliance
5.3.2
Data Plate
5.3.3
Bath & Shower Rooms
5.3.4
Ventilation
5.3.5
Condensate Drain
5.3.6
Clearances - Access in Service
5.3.7
Flue / Chimney Location
5.3.8
Horizontal Flue / Chimney Systems
MainEco Heat
Contents
5.4
6
Installation
36
6.1
36
36
38
38
38
39
39
39
6.2
6.3
6.4
7
40
7.1
7.2
40
40
40
40
40
41
41
42
43
43
44
7.5
7.6
9
Air Supply / Flue Gas Connections
6.1.1
Connecting the Top Flue
Electrical Connections
6.2.1
Electrical Connections of the Appliance
6.2.2
Connecting External Devices
Filling the System
Completing the Installation
6.4.1
Completion
Commissioning
7.3
7.4
8
33
33
33
33
34
34
34
35
35
35
35
5.3.9
Flue/Chimney Trim
5.3.10 Terminal Guard
5.3.11
Flue/Chimney Deflector
5.3.12 Flue/Chimney Accessories
Unpacking & Initial Preparation
5.4.1
Unpacking
5.4.2
Initial Preparation
5.4.3
Making the Water Connection
5.4.4
Filling the Condensate Trap
5.4.5
Connecting the Condensate Drain
5.4.6
Connecting the Gas Supply
General
Checklist before Commissioning
7.2.1
Preliminary Electrical Checks
7.2.2
Checks
Commissioning Procedure
Gas Settings
7.4.1
‘Chimney Sweep’ Mode
7.4.2
‘Chimney Sweep’ Mode - Combustion Check
Configuring the System
7.5.1
Check the Operational (Working) Gas Inlet Pressure & Gas Rate
Final Instructions
Operation
45
8.1
8.2
8.3
8.4
8.5
45
45
45
46
46
General
Start-Up
Shutdown
Use of the Control Panel
Frost Protection
Settings
47
9.1
47
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Parameters
MainEco Heat
5
Contents
10
11
12
13
14
6
Maintenance
48
10.1
10.2
10.3
48
49
50
50
50
50
51
51
52
52
52
52
53
54
54
55
General
Standard Inspection & Maintenance Operation
Specific Maintenance Operation
10.3.1 Spark Ignition Electrode
10.3.2 Automatic Air Vent
10.3.3 Condensate Trap
10.3.4 Removal of Ducts
10.3.5 Pressure Switch (21 & 24 only)
10.3.6 Flow Temperature Sensor
10.3.7 Overheat Sensor
10.3.8 Return Temperature Sensor
10.3.9 Parameter Unit
10.3.10 Gas Valve
10.3.11 Control & Fan Assembly
10.3.12 User Interaction Controller
10.3.13 Setting the Gas Valve (CO2 Check)
Troubleshooting
56
11.1
11.2
56
57
Error Codes - Auto Reset
Lockout Condition
Decommissioning Procedure
58
12.1
58
Decommissioning Procedure
Spare Parts
59
13.1
13.2
59
59
General
Spare Parts List
Notes
60
Benchmark Commissioning Checklist
62
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Introduction
1
Introduction
1.1
General
1
WARNING
Installation, repair and maintenance must only be
carried out only by a competent person. This
document is intended for use by competent persons,
All Gas Safe registered engineers carry an ID card with their
licence number and a photograph. You can check your engineer
is registered by telephoning 0800 408 5500 or online at
www.gassaferegister.co.uk
This appliance must be installed in accordance with the
manufacturer’s instructions and the regulations in force. If the
appliance is sold or transferred, or if the owner moves leaving
the appliance behind you should ensure that the manual is kept
with the appliance for consultation by the new owner and their
installer. Read the instructions fully before installing or using the
appliance.
In GB, this must be carried out by a competent person as stated
in the Gas Safety (Installation & Use) Regulations (as may be
amended from time to time).
Definition of competence: A person who works for a Gas Safe
registered company and holding current certificates in the
relevant ACS modules, is deemed competent.
In IE, this must be carried out by a competent person as stated
in I.S. 813 “Domestic Gas Installations”.
The addition of anything that may interfere with the normal
operation of the appliance without express written permission
from the manufacturer or his agent could invalidate the
appliance warranty. In GB this could also infringe the Gas Safety
(Installation and Use) Regulations.
The appliance is designed as a boiler for use in residential
domestic environments on a governed meter supply only. The
selection of this boiler is entirely at the owner’s risk. If the
appliance is used for purposes other than or in excess of these
specifications, the manufacturer will not accept any liability for
resulting loss, damage or injury.
The manufacturer will not accept any liability whatsoever
for loss, damage or injury arising as a result of failure to
observe the instructions for use, maintenance and
installation of the appliance.
WARNING
Check the information on the data plate is
compatible with local supply conditions.
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MainEco Heat
7
1
Introduction
1.2
Additional Documentation
These Installation & Service Instructions must be read in
conjunction with the Flue Accessories & Fitting Guide supplied in
the Literature Pack.
Various timers, external controls, flue accessories, etc. are
available as optional extras. Full details are contained in the
relevant sales literature.
1.3
Symbols Used
In these instructions, various levels are employed to draw the
user's attention to particular information. In so doing, we wish to
safeguard the user's safety, prevent hazards and guarantee
correct operation of the appliance. Each level is accompanied by
a warning triangle
DANGER
Risk of a dangerous situation causing serious
physical injury.
WARNING
Risk of a dangerous situation causing slight physical
injury.
CAUTION
Risk of material damage.
Signals important information .
Signals a referral to other instructions or other pages
in the instructions.
1.4
Abbreviations
DHW: Domestic hot water
CH: Central heating
GB: Great Britain
IE: Ireland
BS: British standard
HHIC: Heating and Hotwater Industry Council
CSM: Chimney Sweep Mode
PU: Parameter Unit
PCB: Printed Circuit Board
8
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7215845 - 01 (08/14)
Introduction
1.5
1
Extent of Liabilities
1.5.1
Manufacturer's Liability
Our products are manufactured in compliance with the
requirements of the various european applicable Directives.
They are therefore delivered with
marking and all relevant
documentation. In the interest of customers, we are
continuously endeavouring to make improvements in product
quality. All the specifications stated in this document are
therefore subject to change without notice.
The manufacturer will not accept any liability for loss, damage or
injury arising as a result of:Failure to abide by the instructions on using the appliance.
Failure to regularly maintain the appliance, or faulty or
inadequate maintenance of the appliance.
Failure to abide by the instructions on installing the
appliance.
This company declares that no substances harmful to
health are contained in the appliance or used during
appliance manufacture.
The appliance is suitable only for installation in GB and IE and
should be installed in accordance with the rules in force, and
only used in a suitably ventilated location.
In GB, the installation must be carried out by a Gas Safe
Registered Installer. It must be carried out in accordance with
the current and relevant requirements of legislation and
guidance including the:• Gas Safety (Installation & Use) Regulations.
• The appropriate Building Regulations either The
Building Regulations, The Building Regulations
(Scotland), Building Regulations (Northern Ireland).
• The Water Fittings Regulations or Water Byelaws in
Scotland.
• 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 competent Person
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.
Prior to commissioning all systems must be thoroughly
flushed and treated after installation with inhibitor (see
section 5.2.6). Failure to do so will invalidate the appliance
warranty.
Incorrect installation could invalidate the warranty and may lead
to prosecution.
7215845 - 01 (08/14)
MainEco Heat
9
1
Introduction
1.5.2
Installer's Responsibility
The installer is responsible for the installation and initial start up
of the appliance. The installer must adhere to the following:
Read and follow the instructions given in the manuals
provided with the appliance.
Carry out installation in compliance with the prevailing
legislation and standards.
Ensure the system is flushed and inhibitor added.
Install the flue/chimney system correctly ensuring it is
operational and complies with prevailing legislation and
standards, regardless of location of the boiler’s installation.
Only the installer should perform the initial start up and carry
out any checks necessary.
Explain the installation to the user.
Complete the Benchmark Commissioning Checklist - this is a
condition of the warranty !
Warn the user of the obligation to check the appliance and
maintain it in good working order.
Give all the instruction manuals to the user.
1.6
Homologations
1.6.1
Certifications
EC - Declaration of Conformity
Baxi Heating Uk Limited being the manufacturer / distributor
within the European Economic Area of the following
Baxi MainEco Heat
declare that the above is in conformity with the provisions of the
Council Directive
2009/142 EC 92/42 EEC 2004/108 EC 2006/95 EC
and has been subject to the following conformity procedures laid
down in
Annex 2 - Article 3 of 2009/142 EC
under the supervision of the British Standards Institution, a
Notified Body authorized by the United Kingdom Competent
Authority, and carrying the Notified Body Number 0086.
1.6.2
Directives
The boiler meets the requirements of Statutory Instrument “ The
Boiler (Efficiency) Regulations 1993 No 3083” and is deemed to
meet the requirements of Directive 92/42/EEC on the energy
efficiency requirements for new hot water boilers fired with liquid
or gaseous fuels:Type test for purpose of Regulation 5 certified by:
Notified Body 0063.
Product/Production certified by:
Notified Body 0086.
For GB/IE only.
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Introduction
1.6.3
1
Standards
Codes of Practice - refer to the most recent version
In GB the following Codes of Practice apply:
Standard
Scope
BS 6891
Gas Installation.
BS 5546
Installation of hot water supplies for domestic
purposes.
BS EN 12828
Heating systems in buildings.
BS EN 12831
Heating systems in buildings - Calculation of
load.
BS EN 14336
Installation & commissioning of water based
heating systems.
BS 6798
Installation of gas fired hot water boilers.
BS 5440 Part 1 Flues.
BS 5440 Part 2 Ventilation.
BS 7074
Expansion vessels and ancillary equipment for
sealed water systems.
BS 7593
Treatment of water in domestic hot water
central heating systems.
In IE the following Codes of Practice apply:
Standard
Scope
I.S. 813
Domestic Gas Installations.
The following standards give valuable additional information;
BS 5546
Installation of hot water supplies for domestic
purposes.
BS EN 12828
Heating systems in buildings.
BS EN 12831
Heating systems in buildings - Calculation of
load.
BS EN 14336
Installation & commissioning of water based
heating systems.
BS 7074
Expansion vessels and ancillary equipment for
sealed water systems.
BS 7593
Treatment of water in domestic hot water
central heating systems.
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MainEco Heat
11
2
Safety
2
Safety
2.1
General Safety Instructions
DANGER
If you smell gas:
1. Turn off the gas supply at the meter
2. Open windows and doors in the hazardous area
3. Do not operate light switches
4. Do not operate any electrical equipment
5. Do not use a telephone in the hazardous area
6. Extinguish any naked flame and do not smoke
7. Warn any other occupants and vacate the
premises
8. Telephone the National Gas Emergency Service
on:- 0800 111 999
2.2
Recommendations
WARNING
Installation, repair and maintenance must be carried
out by a Gas Safe Registered Engineer
(in accordance with prevailing local and national
regulations).
When working on the boiler, always disconnect the
boiler from the mains and close the main gas inlet
valve.
After maintenance or repair work, check the
installation to ensure that there are no leaks.
CAUTION
The boiler should be protected from frost.
Only remove the casing for maintenance and repair
operations. Replace the casing after maintenance
and repair operations.
12
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7215845 - 01 (08/14)
Safety
2.3
2
Specific Safety Instructions
2.3.1
Handling
General
•
The following advice should be adhered to, from when first
handling the boiler to the final stages of installation, and
also during maintenance.
•
Most injuries as a result of inappropriate handling and lifting
are to the back, but all other parts of the body are
vulnerable, particularly shoulders, arms and hands. Health
& Safety is the responsibility of EVERYONE.
• Before lifting the boiler, the circumstances of the installation
must be assessed, please use appropriate manual handling
techniques and equipment.
•
Do not handle or lift unless you feel physically able.
•
Wear appropriate Personal Protection Equipment
e.g. protective gloves, safety footwear etc.
Preparation
•
Co-ordinate movements - know where, and when, you are
both going.
•
Minimise the number of times needed to move the boiler plan ahead.
•
Always ensure when handling or lifting the route is clear
and unobstructed. If possible avoid steps, wet or slippery
surfaces, unlit areas etc. and take special care on
ladders/into lofts.
Technique
•
When handling or lifting always use safe techniques - keep
your back straight, bend your knees. Don’t twist - move your
feet, avoid bending forwards and sideways and keep the
load as close to your body as possible.
•
Where possible transport the boiler using a sack truck or
other suitable trolley.
•
Always grip the boiler firmly, and before lifting feel where the
weight is concentrated to establish the centre of gravity,
repositioning yourself as necessary. See the ‘Installation’
section of these instructions for recommended lift points.
Remember
•
The circumstances of each installation are different. Always
assess the risks associated with handling and lifting
according to the individual conditions.
•
If at any time when installing the boiler you feel that you
may have injured yourself STOP !! DO NOT ‘work through’
the pain - you may cause further injury.
IF IN ANY DOUBT DO NOT HANDLE OR LIFT THE BOILER OBTAIN ADVICE OR ASSISTANCE BEFORE PROCEEDING !
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13
3
Technical Specification
3
Technical Specifications
3.1
Technical Data
Appliance Type
C13
Appliance Category
C33
C53
CAT I 2H
Heat Input (Gross)
15 model
kW
18 model
kW
Max
18.32
21.75
Min
8.59
8.59
24 model
28.62
8.59
kW
Heat Output
(Non Condensing 70° C Mean Water
Temp)
Max
Min
15 model
18 model
kW
kW
16
19
7.5
7.5
24 model
kW
25
7.5
Max Gas Rate (Natural Gas - G20)
(After 10 Mins)
m3/hr
15 model
1.75
18 model
2.07
24 model
2.73
Dynamic (nominal) Inlet Pressure
(Natural Gas - G20)
mbar
20
with a CV of 37.78 MJ/m3
Horizontal
Flue Terminal
Dimensions
Nox Class
Diameter
Projection
Connections
Gas Supply
Central Heating Flow
(compression fitting)
Central Heating Return
(compression fitting)
Condensate Drain
Outercase Dimensions
Overall Height Inc Flue Elbow
Casing Height
Casing Width
Casing Depth
100mm
125mm
-
22mm
-
22mm
Electrical Supply
230V~ 50Hz
(Appliance must be connected to an
earthed supply)
22mm
for 21.5mm
plastic waste pipe
-
5
Power Consumption
15 model
W
18 model
W
24 model
W
Max Rate
20
23
33
External Fuse Rating
3A
Internal Fuse Rating (Terminal Strip)
Fuse
1.6T
790mm
625mm
370mm
270mm
Electrical Protection
IPX4D
Water Content
litres
Clearances
Static Head
max
Both Sides
5mm Min
Above Casing (Top Flue)
190mm Min
Above Casing (Rear Flue) 35mm Min
Below Casing (in Cupboard) 35mm Min
Below Casing
120 mm Min
Front (For Servicing)
800mm Min
Front (In Operation)
5mm Min
See Section 5.3.6 for full details !
Weights
Packaged Boiler Carton
Installation Lift Weight
CO/CO2 Ratio
25 metres
Low Head
0.4m min
System Detail
fully pumped open vented & sealed systems
Pressure Switch
12/15/18 Model - Not Fitted
21/24 Model - Fitted
21.5 kg
19.5 kg
Up to a maximum
of 0.004
NOTE: All data in this section are nominal
values and subject to normal production
tolerances.
Flow Temperature (adjustable)
30° C to 80° C (± 5° C)
Recommended System
Temperature Drop
Condensing 20°C
1.7
36°F
SEDBUK 2009 Declaration
15 model - 89.2%
18 model - 89.2%
24 model - 89.1%
Pressure drop vs Flow
300
SEDBUK 2005 Declaration
15 model - 90.2%
18 model - 90.1%
24 model - 90%
This 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
Pressure drop (mbar)
250
200
150
100
50
calculated has been certified by 0063.
0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
Flow (m3hr)
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MainEco Heat
7215845 - 01 (08/14)
Technical Specifications
3.2
3
Dimensions and Connections
For clearances see
Section 5.3.6
DIMENSIONS
At Least
1.5°
G E
A 625mm
B 270mm
C 370mm
D 116mm Ø Min.
A
E 165mm
F 155mm
G 110mm
H 550mm
B
360° Orientation
NOTE: There must be no part of the air duct
(white tube) visible outside the property after
installation. The flue seal should fit neatly and
effect a good seal.
C
D
Tube Ø 100mm
IMPORTANT: The 1.5° fall provided by the elbow is
to allow condensate to run back to the boiler, for
disposal through the condensate discharge pipe.
When using extensions the fall along the flue
system must be increased to 3°.
Where extensions are used ensure the clearance
above the top of the flue elbow (X) is as shown in
the table below:-
F
Y
6m max
X
Flue length (Y)
Clearance (X)
up to 1m
30mm
1m - 2m
84mm
2m - 3m
134mm
3m - 4m
186mm
4m - 5m
238mm
5m - 6m
290mm
At Least 3°
7215845 - 01 (08/14)
MainEco Heat
15
3
Technical Specifications
3.3
Electrical Diagram
3.1
Technical Data (cont)
Electrode
g/y
r
br
Gas Valve
b
g/y
Mains
g/y
br
b
Safety
Thermostat
L
User Interaction
Controller
N
Electrical
Test Point
Not used
Return
Sensor
b
Flow
Sensor
r
Parameter
Unit
Pressure
Switch (where
fitted)
Loop Connector
(where no pressure
switch fitted)
Key To Wiring Colours
b
- Blue
r
- Red
br
- Brown
g/y - Green/Yellow
All other wires are black
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MainEco Heat
7215845 - 01 (08/14)
Description of the Product
4
Description of the Product
4.1
General Description
4
1. The Baxi MainEco Heat Range are gas fired wall mounted
powered flue condensing boilers.
2. The maximum output of the boiler is :15 model 18 model 24 model -
16 kW
19 kW
25 kW
3. The boiler modulates automatically to the system load up to
the set output. It is designed for use on Natural Gas (G20) only.
Information
Label
4. The two illuminated User Interaction Controller push buttons
provide information about the operating condition of the boiler.
5. The boiler is suitable for fully pumped open vented central
heating and domestic hot water systems and sealed systems.
6. An information label giving details of the model, serial number
and Gas Council number is situated on the front left underside of
the outercase and is accessed by pulling forward gently (Fig. 1).
Flip
Downward
Data Label
Fig. 1
7. The boiler data label is positioned on the inside lower righthand side of the boiler and can be seen when the outercase
panel is removed (Fig. 1).
8. The boiler is intended to be installed in residential/domestic
environments on a governed meter supply only.
9. The boiler must be installed with one of the purpose designed
flues such as one of the standard telescopic flue kits detailed in
the Flue Accessories & Fitting Guide.
All systems must be thoroughly cleansed, flushed and
treated with inhibitor (see Section 5.2.6).
These Installation & Servicing Instructions MUST be
read in conjunction with the Flue Accessories & Fitting Guide
supplied in the Literature Pack.
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17
3
Technical Specifications
4.2
Operating Principle
1. Switched Live On: When the boiler switched live turns on
the boiler, a 20 second check cycle takes place. If the flow
temperature is less than the boiler set-point temperature the
ignition cycle will start. Pre-purge, Ignition and Burner on.
Mains On.
(CH or DHW demand)
2. Fan Pre-Purge: The boiler has a 10 second pre-purge (Fan
On, Spark Generator and Gas Valve off) before the start of the
ignition sequence.
Self test cycle for 20s
(output setting displayed)
NO
3. Ignition: The boiler has a 5 second ignition period (Fan,
Spark Generator and Gas Valve on) and burner on occurs when
a flame is detected. If a flame is not detected within the 5
second ignition period then 4 more ignition attempts are made.
If a flame is not detected after the 5 ignition attempts the boiler
goes to an ignition lock-out and an error code is displayed.
Flow
temperature less
than set point ?
YES
4. Burner on: After a successful ignition, Burner on occurs (Fan
and Gas Valve on, Spark Generator off). The boiler flow
temperature is controlled by varying the fan speed (and thereby
the gas rate) to achieve the optimum boiler operation. If the
boiler flow temperature exceeds the boiler set-point, the burner
will turn off (Fan and Gas Valve off).
10 second pre-purge
5 second ignition
Flame detected ?
NO
5th ignition attempt ?
YES
YES
Burner on
Ignition Lockout
Modulate output
5. Overtemperature: If a boiler overtemperature event occurs
(triggering the safety thermostat) the burner shuts down (Fan off
and Gas Valve off). A locking signal is generated and an error
code is displayed.
6. Lockout: If a lock-out error is displayed (Fan, Spark
Generator and Gas Valve off) the boiler can only be reset by
manually pressing the reset button. If 5 lock-outs are reset
within a 1 hour period then boiler becomes inoperable. It is
necessary to switch off the power supply to the boiler, and when
reinstated the reset button pressed again to operate the
appliance.
Any lock-out errors that occur regularly will require further
investigation and rectification.
Flow temp or
rate of rise too
high ?
Technical Enquiries: 0844 871 1555.
NO
YES
Burner Off
Mains Off
(Demand satisfied)
NO
Over Temp
Fault ?
YES
Lockout
18
MainEco Heat
7215845 - 01 (08/14)
Description of the Product
4.3
4
Main Components
8
4
10
1.
Heat Exchanger
2.
Combustion Control Unit
3.
Condensate Trap
4.
Exhaust Tube
5.
Inlet Silencer
6.
User Interaction Controller
7.
Gas Cock
8.
Air Pressure Switch (21 & 24 model only)
9.
System Drain Cock
10.
Air Vent
1
5
2
9
6
7
3
7215845 - 01 (08/14)
MainEco Heat
19
4
Description of the Product
4.4
Control Panel Description
4.4.1
User Interaction Controller
(Control Panel) (Fig. 2)
Key to symbols
Heating Water Temperature
Sweep Key and Status Signals
Reset button and On/Off Signal
1. The User Interaction Controller has 2 illuminating push
buttons which provide information about the operating condition
of the boiler.
Fig. 2
2. The RESET button lights up green when the boiler has a
demand for CH or DHW.
3. The
button can flash in a range of colours and at
different frequencies.
4. The User Interaction Controller also has one rotary knob. The
rotary knob can be used to set the maximum flow
temperature of the heating water.
Maximum temperature is 80°C
5. The temperature on this rotary knob must be set to a higher
temperature than the cylinder thermostat to achieve the required
hot water demand.
20
MainEco Heat
7215845 - 01 (08/14)
Description of the Product
4.5
4
Standard Delivery
1. The pack contains:
Boiler
Wall Fixing Bracket
Copper Tail (Gas Connection) and Fibre Washer
Power Lead
Literature pack
• Installation & Servicing Manual (including ‘benchmark’)
• User Guide
• Flue Accessories & Fitting Guide
• Service Contract Leaflet
• Registration Card
• Envelope
• Fernox Leaflet
• Wall Template
4.6
Accessories & Options
4.6.1
Optional Extras
1. Various items are available as optional extras.
Flue Accessories (elbows, extensions, clamps etc.)
(refer to the Flue Accessories & Fitting Guide supplied
in the literature pack.)
Remote relief valve kit
1M Condensate Drain Pipe ‘Trace Heating’ Element
2M Condensate Drain Pipe ‘Trace Heating’ Element
3M Condensate Drain Pipe ‘Trace Heating’ Element
5M Condensate Drain Pipe ‘Trace Heating’ Element
7215845 - 01 (08/14)
MainEco Heat
21
5
Before Installation
5
Before Installation
5.1
Installation Regulations
WARNING
Installation, repair and maintenance must only be
carried out by a competent person. This document is
intended for use by competent persons.
Installation must be carried out in accordance with the prevailing
regulations, the codes of practice and the recommendations in
these instructions.
Installation must also respect the following points:
This instruction manual and any other applicable
documentation.
Building Regulations.
British Standards.
92/42/EEC Efficiency Directive.
2009/142/EC Gas Appliance Directive.
2006/95/EC Low Voltage Directive.
2004/108/EC Electromagnetic Compatibility Directive.
Gas safety regulations.
Water supply regulations.
5.2
Installation Requirements
5.2.1
Gas Supply
1. The gas installation should be in accordance with the relevant
standards. In GB this is BS 6891 (NG). In IE this is the current
edition of I.S. 813 “Domestic Gas Installations”.
2. The connection to the appliance is a 22mm copper tail
located at the rear of the gas service cock.
3. Ensure that the pipework from the meter to the appliance is of
adequate size and the demands of any other gas appliances in
the property are taken into consideration.
4. The gas service cock incorporates a pressure test point.
22
MainEco Heat
7215845 - 01 (08/14)
Description of the Product
5.2.2
4
Electrical Supply
1. External wiring must be correctly earthed, polarised and in
accordance with relevant regulations/rules. In GB this is the
current I.E.E. Wiring Regulations. In IE reference should be
made to the current edition of ETCI rules.
2. The mains supply is 230V ~ 50Hz fused at 3A.
The method of connection to the electricity supply must
facilitate complete electrical isolation of the appliance.
Connection may be via a fused double-pole isolator
with a contact separation of at least 3mm in all poles
and servicing the boiler and system controls only.
Isolation of the boiler can be checked at the electrical
test point.
5.2.3
Hard Water Areas
1. If the area of the installation is recognised as a HARD
WATER AREA then this must be taken into account when filling
the system.
5.2.4
Bypass
1. An automatic bypass must be fitted on the system for
protection of the boiler and pump.
5.2.5
System Control
1. The system must be fitted with thermostats and TRVs to
comply with Part L of the Building Regulations.
5.2.6
Treatment of Water Circulating Systems
1. All recirculatory water systems will be subject to corrosion
unless they are flushed and an appropriate water treatment is
applied. To prevent this, follow the guidelines given in BS 7593
“Treatment of Water in Domestic Hot Water Central Heating
Systems” and the treatment manufacturers instructions.
2. Treatment must involve the use of a proprietary cleanser,
such as Sentinel X300 or X400, or Fernox F3 and an inhibitor
such as Sentinel X100 or Fernox MB-1.
3. Full instructions are supplied with the cleansing products, for
further information contact Sentinel (0800 389 4670) or Fernox
(0870 870 0362).
Failure to flush and add inhibitor to the system will
invalidate the appliance warranty.
4. It is important to check the inhibitor concentration after
installation, system modification and at every service in
accordance with the inhibitor manufacturer’s instructions. (Test
kits are available from inhibitor stockists.)
5. Complete the label supplied with the inhibitor and attach to
the inside of the boiler case. Detail of system treatment should
be added for future reference.
6. For information or advice regarding any of the above contact
Technical Enquiries 0844 871 1555.
7215845 - 01 (08/14)
MainEco Heat
23
5
Before Installation
5.2.7
Copper
0.4m
Copper
0.6m
Flow
Return
Copper
1m
Boiler
Fig. 3
500
mm
22mm
Open Vent
45°
400mm
Min Head
2. A 20 °C (36°F) drop in temperature across the system is
recommended for condensing boilers. Existing radiators may be
oversized and so allow this, but where radiator sizing is
marginal it may be advisable to retain a system temperature
drop of 11°C (20°F).
Pump
Boiler
Return
Flow
Fig. 4
Water Circulating Systems
1. The appliance is suitable for use with open vent fully pumped
systems and sealed systems .
The following conditions should be observed on all systems:
• The static head must not exceed 25m of water.
• The boiler must not be used with a direct cylinder.
• Drain cocks should be fitted to all system low points.
• All gas and water pipes and electrical wiring must be
installed in a way which would not restrict the servicing
of the boiler.
• Position isolating valves as close to circulating pump as
possible.
Pipework
1. The sizes of flow and return pipes from the boiler should be
determined by normal methods, according to the requirements
of the system. The connections on the boiler are 22mm.
1000mm
Min
15mm
Cold 150mm
Feed Max
System Details - General
Typical Low Head Installation
500
3. In systems using non-metallic pipework it is necessary to use
copper pipe for the boiler Flow and Return. The copper must
extend at least 1 metre from the boiler and include any branches
(Fig. 3).
mm
22mm
Open Vent
5.2.8
Low Head Installation / Open
45°
15mm
Cold
Feed
400mm
Min Head
1. Using a close coupled arrangement the minimum head is as
shown in the diagrams (Figs. 4, 5 & 6) subject to the following
conditions:
1000mm
Min
150mm
Max
Pump
Boiler
Flow
Return
If Conditions Require,
This System Possible
22mm
Feed & Vent
Pipe
Fig. 5
200mm
Min
400mm
Min Head
Air
Separator
a) The pump being adjusted to give a 20°C drop across
the boiler.
b) Ideally the pump should be fitted on the flow but
providing that the cold feed and open vent pipe are
positioned correctly (e.g. the system is not prone to
pumping over, air entrainment etc.) the pump may be
fitted on the primary return pipe.
c) The pump must be fitted in accordance with the
pump manufacturer's instructions.
d) The open vent pipe must be taken up from a tee in a
horizontal section of the flow pipe.
Venting
1. A method of venting the system during filling and
commissioning is provided by an automatic air vent fitted inside
the boiler. The air vent is supplied in the open position.
Pump
Flow
Return
Boiler
Fig. 6
Alternative Low Head Installation
24
MainEco Heat
7215845 - 01 (08/14)
Before Installation
5.2.9
3 Litre Top Up Bottle
(if required)
Air
Vent
Filling
Point
Pressure
Gauge
Safety
Valve
Pump
Radiator
Circuit
Expansion
Vessel
Boiler
Max Boiler Flow
Temp = 82° C
System Drains
at Low Point
Fig. 7
Method of determining minimum valve of
expansion vessel volume for sealed
systems using Baxi Boilers
Static
Head
( m)
Vessel
Charge
Pressure
(Bar)
<5
0.5
<10
1.0
<15
1.5
Initial
System
Pressure
(Bar)
0.5
1.0
1.5
2.0
Multiply Total
Water Content
Of System By
(Litres)
0.067
0.112
0.207
0.441
1.0
1.5
2.0
0.087
0.152
0.330
1.5
2.0
0.125
0.265
Example :- System Volume = 75 litres
Vessel Charge Pressure = 1.0 bar
Table. 1a
Initial System Pressure = 1.5 bar
Then :- 75 x 0.152 = 11.4 litres
Expansion Vessel Volume
NOTE
Where a vessel of the calculated size is not obtainable
then the next available larger size should be used.
CH
Stop
Return
Valve
Temporary
Hose
Double
Check Stop
Valve Valve
Mains
Cold
Supply
5
Sealed Systems Details
1. SAFETY VALVE - A safety valve complying with the
requirements of BS 6750 Part 1 must be fitted close to the
boiler on the flow pipe by means of a horizontal or vertically
upward connection with no intervening valve or restrictions and
should be positioned to facilitate testing. The valve should be
pre-set and non-adjustable to operate at a pressure of 3 bar
(45 Ibf/in2). It must be arranged to discharge any water or
steam through a pipe to a safe outlet position.
2. PRESSURE GAUGE - A pressure gauge of minimum range
0-4 bar (0-60 Ibf/in2) with a fill pressure indicator must be fitted
to the system, preferably at the same point as the expansion
vessel in an easily visible position.
3. EXPANSION VESSEL - An expansion vessel complying with
the requirements of BS 4814 must be fitted to the system by
means of a connection close to the inlet side of the circulating
pump in accordance with the manufacturers instructions, the
connecting pipe being unrestricted and not less than 15mm
(1/2 in) nominal size. The volume of the vessel should be
suitable for the system water content and the nitrogen or air
charge pressure should not be less than the system static head
(See Table. 1a).
Further details of sealed system design can be
obtained from BS 5449 and the British Gas publication entitled
'Specifications for Domestic Wet Central Heating Systems'.
4. FILLING POINT - A filling point connection on the central
heating return pipework must be provided to facilitate initial
filling and pressurising and also any subsequent water loss
replacement / refilling. The sealed primary circuits may be filled
or replenished by means of a temporary connection between
the primary circuit and a supply pipe provided a ‘Listed’ double
check valve or some other no less effective backflow
prevention device is permanently connected at the inlet to the
circuit and the temporary connection is removed after use. The
filling method adopted must be in accordance with all relevant
water supply regulations and use approved equipment.
Your attention is drawn to, for GB: Guidance G24.2 and
recommendation R24.2 of the Water Regulations Guide. for IE:
the current edition of I.S. 813 “Domestic Gas Installations”.
5. MAKE UP SYSTEM - A method of replacing water lost from
the system should be provided either by means of a make up
vessel of not more than 3 litres (5 pints) capacity, mounted
above the highest point of the system, or by re-pressurisation
of the system.
6. VENTING - A method of venting the system during filling and
commissioning is provided by an automatic air vent fitted inside
the boiler. The air vent is supplied in the open position.
7. HOT WATER STORAGE - The hot water storage vessel
must be of the indirect coil type. All components used in the
system must be suitable for operation at 110°C (230°F) and at
the pressure allowed by the safety valve.
Fig. 8
7215845 - 01 (08/14)
MainEco Heat
25
5
Before Installation
5.3
Choice of the Location
5.3.1
Location of the Appliance
Due to the high efficiency of the boiler a plume of water
vapour will be discharged from the flue. This should be
taken into account when siting the flue terminal.
1. The boiler may be fitted to any suitable wall with the flue
passing through an outside wall or roof and discharging to
atmosphere in a position permitting satisfactory removal of
combustion products and providing an adequate air supply.
The boiler should be fitted within the building unless otherwise
protected by a suitable enclosure i.e. garage or outhouse.
(The boiler may be fitted inside a cupboard).
2. If the boiler is sited in an unheated enclosure then it is
recommended to incorporate an appropriate device for frost
protection in the system controls.
Zone 2
Window
Recess
3. If the boiler is fitted in a room containing a bath or shower it
MUST NOT BE fitted in zone 0 or 1, ONLY within the shaded
area (Figs. A & B shows zone dimensions for a bathtub. For
other examples refer to the Current I.E.E. Wiring Regulations)
reference must be made to the relevant requirements.
In GB this is the current I.E.E. Wiring Regulations and Building
Regulations.
In IE reference should be made to the current edition of I.S. 813
“Domestic Gas Installations” and the current ETCI rules.
Zone 1
Zone 2
Zone 0
0.6 m
Window
Recess
Zone 2
Fig. A
4. If the boiler is to be fitted into a building of timber frame
construction then reference must be made to the current edition
of Institute of Gas Engineers Publication IGE/UP/7 (Gas
Installations in Timber Framed Housing).
In GB Only
5.3.2
Data Plate
1. The boiler data label gives details of the model, serial number
and Gas Council number and is situated on the lower right hand
inside face of the outercase. It is visible when the outercase
front panel is removed (Fig. 5).
Ceiling
Window Recess
Zone 2
Outside Zones
Zone 1
Zone 2
2.25 m
5.3.3
Bath & Shower Rooms
1. If the boiler is fitted in a room containing a bath or shower it
can be fitted in zone 2, (Figs. A & B shows zone dimensions for
a bathtub. For other examples refer to the Current I.E.E. Wiring
Regulations) reference must be made to the relevant
requirements.
In GB this is the current I.E.E. Wiring Regulations and Building
Regulations.
In IE reference should be made to the current edition of I.S. 813
“Domestic Gas Installations” and the current ETCI rules.
Zone 0
5.3.4
Ventilation
0.6 m
Fig. B
1. Where the appliance is installed in a cupboard or
compartment, no air vents are required.
In GB Only
2. BS 5440: Part 2 refers to room sealed appliances installed in
compartments. The appliance will run sufficiently cool without
ventilation.
26
MainEco Heat
7215845 - 01 (08/14)
Before Installation
Examples are shown of the following methods of
termination:i) to an internal soil & vent pipe
ii) via an internal discharge branch (e.g. sink waste)
downstream of the trap
iii) to a drain or gully
iv) to a purpose made soakaway
v) pumped into an internal discharge branch (e.g.
sink waste) downstream of the trap
vi) pumped into an external soil & vent pipe
vii) to a drain or gully with extended external run &
trace heating
It is strongly recommended to discharge
internally into the household drainage system. If
connecting to a rain water drain, that drain MUST
discharge into a foul drain.
32mm
21.5mm
Insulation
i) Termination to an internal soil
and vent pipe
50mm
per m
etre o
2.5° M
f
inimum pipe run
fall
450mm min*
*450mm is applicable to properties up
to 3 storeys.
For multi-storey building installations
consult BS 6798.
Boiler
ii) External termination via
internal discharge branch
e.g sink waste - downstream*
5.3.5
5
Condensate Drain
FAILURE TO INSTALL THE CONDENSATE
DISCHARGE PIPEWORK CORRECTLY WILL AFFECT
THE RELIABLE OPERATION OF THE BOILER.
CAREFUL CONSIDERATION MUST BE GIVEN TO
THE POSSIBILITY OF THE PIPEWORK BEING
SUBJECT TO FREEZING CONDITIONS AND
APPROPRIATE MEASURES TAKEN TO PREVENT
BLOCKAGE. CORRECT INSTALLATION IN
ACCORDANCE WITH THIS SECTION WILL
CONSIDERABLY MINIMISE THE LIKELIHOOD OF
BLOCKAGE AND SUBSEQUENT BOILER LOCK-OUT.
A CONDENSATE DISCHARGE PUMP AND PIPE
‘TRACE HEATING’ ARE AVAILABLE AS
ACCESSORIES - see paragraphs 5.3.5.12 to 5.3.5.15
for further details.
The condensate discharge pipe MUST NOT RISE at
any point along its length. There MUST be a fall of AT
LEAST 2.5° (50mm per metre) along the entire run
EXCEPT when employing a suitable condensate pump
in basement and cellar or similar applications.
The boiler condensate trap incorporates a water seal of
75mm, therefore it is unnecessary to install an
additional air break and trap in the discharge pipework.
1. The condensate outlet will accept 21.5mm (3/4in) plastic
overflow pipe. It is strongly recommended that this
discharges internally into the household drainage system.
Where this is not possible, discharge into an outside drain is
permissible providing every possible precaution is taken to
prevent freezing.
2. Ensure the discharge of condensate complies with any
national or local regulations in force. BS 6798 & Part H1 of the
Building Regulations give further detailed guidance.
3. The discharge pipe should be run in a proprietary drain pipe
material e.g. PVC, PVC-U, ABS, PVC-C or PP.
4. Metal pipework is NOT suitable for use in condensate
discharge systems.
Sink
50mm
p
of pip er metre
e run
2.5° M
inimum
fall
Pipe must terminate
above water level but
below surrounding
surface. Cut end at 45°
*It is NOT RECOMMENDED to connect upstream
of the sink or other waste water receptacle !
7215845 - 01 (08/14)
5. The pipe should be a minimum of 21.5mm diameter and must
be supported using suitably spaced clips of the correct design to
prevent sagging.
6. It is advisable that the full length of condensate pipe is
run internally and preferably be less than 3 metres.
7. Internal runs greater than 3 metres or runs in cold areas
should use 32mm waste pipe.
8. External runs MUST be a MINIMUM of 32mm and fully
insulated with material suitable for external use.
MainEco Heat
27
5
Before Installation
iii) Termination to a drain
or gully
Boiler
10. In all cases discharge pipe must be installed to aid disposal
of the condensate. To reduce the risk of condensate being
trapped, as few bends and fittings as possible should be used
and any burrs on cut pipe removed.
50mm
p
of pip er metre
e run
2.5° M
inimum
11. When discharging condensate into a soil stack or waste
pipe the effects of existing plumbing must be considered. If soil
pipes or waste pipes are subjected to internal pressure
fluctuations when WC's are flushed or sinks emptied then backpressure may force water out of the boiler trap and cause
appliance lockout.
fall
Pipe must terminate above water level
but below surrounding surface. Cut
end at 45°
iv) Termination to a purpose made
soakaway
Further specific requirements for
soakaway design are referred to in
BS 6798.
Boiler
50mm
pe
of pipe r metre
run
2.5° M
inimum
12. A boiler discharge pump is available, ‘MULTIFIT’
part no. 720648301. This pump will dispose of both condensate
& high temperature water from the relief valve. It has a
maximum head of 5 metres. Follow the instructions supplied
with the pump.
500mm min
13. Condensate Drain Pipe ‘Trace Heating’ Elements are
available in various lengths. ‘MULTIFIT’ part nos.:-
fall
Holes in the soak-away must
face away from the building
v) pumped into an internal discharge branch
(e.g. sink waste) downstream of the trap
50mm p
er metre
of pipe ru
2.5° Min
n
imum fa
ll
Sink
9. If the boiler is fitted in an unheated location the entire
condensate discharge pipe should be treated as an external run
and sized and insulated accordingly.
1 metre 720644401
2 metre 720664101
3 metre 720664201
5 metre 720664401*
*Where the drain is between 3 & 5 metres a 5 metre kit can be
used and “doubled back” upon itself.
14. It is possible to fit the element externally on the condensate
drain or internally as detailed in the instructions provided.
15. The fitting of a ‘Trace Heating’ Element is NOT a substitute
for correct installation of the condensate drain. ALL
requirements in this section must still be adhered to.
5m
Boiler
Basement or
similar
Pipe must terminate
(heated)
above water level but
below surrounding
surface. Cut end at 45°
Condensate Pump
vi) pumped into an external soil & vent pipe
50mm
per me
tre of
2.5° M pipe run
inimum
fall
Unheated Location
(e.g. Garage)
5m
Boiler
vii) to a drain or gully with extended
external run & trace heating
Boiler
Basement or similar
(heated)
50mm
The ‘Trace Heating’ element must be installed in
accordance with the instructions supplied.
External runs & those in unheated locations still
require insulation.
per me
tre of p
ipe run
inimum
fall
2.5° M
Pipe must terminate
above water level but
below surrounding
surface. Cut end at 45°
Condensate
Pump
28
MainEco Heat
7215845 - 01 (08/14)
Before Installation
5.3.6
5
Clearances - Access in Service
1. A flat vertical area is required for the installation of the boiler.
2. These dimensions include the necessary clearances around
the boiler for case removal, spanner access and air movement
(Figs. 9 & 10). Additional clearances may be required for the
passage of pipes around local obstructions such as joists
running parallel to the front face of the boiler.
*These are MINIMUM recommended dimensions. Greater
clearance will aid installation and maintenance.
5mm Min
370mm
5mm Min
190mm
At least
1.5°
800mm Min
For Servicing
Purposes
625mm
35mm Min*
270mm
Fig. 9
5mm Min
In Operation
in Cupboard
120mm Min*
35mm Min when in
cupboard 300mm deep
120mm Min when over
surface 600mm deep
Fig. 10
7215845 - 01 (08/14)
MainEco Heat
29
5
Before Installation
5.3.7
Flue/Chimney Location
1. The following guidelines indicate the general requirements for
siting balanced flue terminals. For GB recommendations are
given in BS 5440 Pt 1. For IE recommendations are given in the
current edition of I.S. 813 “Domestic Gas Installations”.
Under car ports we recommend the use of the plume
displacement kit.
The terminal position must ensure the safe and
nuisance - free dispersal of combustion products.
T
J,K
U
N
R
I
M
C
I
I
F
D
E
A
S
I
F
J,K
B
L
A
A
G
H
H
I
Likely flue positions requiring
a flue terminal guard
Terminal Position with Minimum Distance (Fig. 11)
A1
B1
C1
D2
E2
F2
G2
H2
I
J
K
L
M
N
R
S
T
U
30
Directly below an opening, air brick, opening windows, etc.
Above an opening, air brick, opening window etc.
Horizontally to an opening, air brick, opening window etc.
Below gutters, soil pipes or drain pipes.
Below eaves.
Below balconies or car port roof.
From a vertical drain pipe or soil pipe.
From an internal or external corner.
Above ground, roof or balcony level.
From a surface or boundary line facing a terminal.
From a terminal facing a terminal (Horizontal flue).
From a terminal facing a terminal (Vertical flue).
From an opening in carport (e.g. door, window)
into the dwelling.
Vertically from a terminal on the same wall.
Horizontally from a terminal on the same wall.
From adjacent wall to flue (vertical only).
From an adjacent opening window (vertical only).
Adjacent to windows or openings on pitched and flat roofs
Below windows or openings on pitched roofs
MainEco Heat
Fig. 11
(mm)
300
300
300
25 (75)
25 (200)
25 (200)
25 (150)
25 (300)
300
600
1200
600
1200
1500
300
300
1000
600
2000
1
In addition, the terminal should be no nearer than
150 mm to an opening in the building fabric formed
for the purpose of accommodating a built-in element
such as a window frame.
2
Only ONE 25mm clearance is allowed per
installation. If one of the dimensions D, E, F, G or H
is 25mm then the remainder MUST be as shown in
brackets, in accordance with B.S.5440-1.
7215845 - 01 (08/14)
Before Installation
5
Due to the nature of the boiler a plume of water vapour
will be discharged from the flue. This should be taken
into account when siting the flue terminal.
2. If the terminal discharges onto a pathway or passageway,
check that combustion products will not cause a nuisance and
that the terminal will not obstruct the passageway.
Flue
Deflector
3. If a terminal is less than 2 metres above a balcony, above
ground or above a flat roof to which people have access, then a
suitable terminal guard must be provided.
*
300 min
Terminal
Assembly
*4. The distance from a fanned draught appliance terminal
installed parallel to a boundary may not be less than 300mm in
accordance with the diagram opposite (Fig. 12).
Reduction to the boundary is possible down to 25mm
but flue deflector part no. 5111068 or the appropriate
Plume Displacement Kit must be used. The nuisance
factor must still be taken into account when these
options are being considered.
Top View Rear Flue
Property Boundary Line
Fig. 12
If fitting a Plume Displacement Flue Kit, the air inlet
must be a minimum of 150mm from any opening
windows or doors (Fig. 13).
Plume
Displacement
Kit
Air Inlet
Opening
Window or Door
150mm
MIN.
Fig. 13
7215845 - 01 (08/14)
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31
5
Before Installation
5.3.8
(ii)
Horizontal Flue/Chimney Systems
1. The standard telescopic flue is suitable only for horizontal
termination applications. It allows for lengths between 315mm
and 500mm from elbow to terminal without the need for cutting
(Fig. 14). Extensions of 250mm, 500mm & 1m are available.
(i)
2. All fittings should be fully engaged. The approximate
engagement is 40mm. Apply the lubricant supplied to the seal on
each fitting to aid assembly.
3. Maximum permissible Horizontal Concentric equivalent flue
lengths are:(60/100)
(80/125)
6 metres
12 metres
4. Any additional “in line” bends in the flue system must be taken
into consideration. Their equivalent lengths are:135° bend
0.5 metres
93° bend
1.0 metres
5. The elbow supplied with the standard horizontal telescopic
flue kit is not included in any equivalent length calculations.
Horizontal
Flues
Flue length is measured from point (i) to (ii) as shown
below.
Read this section in conjunction with the Flue
Accessories & Fitting Guide supplied with the boiler. That
document includes details of vertical flue/chimney systems and
Plume Displacement Kits.
m
0m
50
m
5m
31
This bend is
equivalent to 1 metre
C
A
(ii)
B
Fig. 14
(i)
Flue Trims
This bend is equivalent
to 1 metre
Total equivalent length =
A+B+C+2 x 90° Bends
NOTE: Horizontal flue extensions should
always be installed with a fall of at least
3° from the terminal to allow condensate
to run back to the boiler.
32
MainEco Heat
7215845 - 01 (08/14)
Before Installation
5.3.9
5
Flue/Chimney Trim
1. The flexible flue trims supplied can be fitted on the outer and
inner faces of the wall of installation (Fig. 14).
Terminal
Guard
5.3.10
Terminal Guard
1. When codes of practice dictate the use of terminal guards
(Fig. 15) ‘Multifit’ accessory part no. 720627901 can be used
(NOTE: This is not compatible with Flue Deflector referred too
below).
2. There must be a clearance of at least 50mm between any
part of the terminal and the guard.
Fig. 15
3. When ordering a terminal guard, quote the appliance name
and model number.
4. The flue terminal guard should be positioned centrally over
the terminal and fixed as illustrated.
Flue Deflector
5.3.11
Flue/Chimney Deflector
Fig. 16
1. Push the flue deflector over the terminal end, it may point
upwards as shown, or up to 45° either way from vertical. Secure
the deflector to the terminal with screws provided (Fig. 16).
5.3.12
Flue/Chimney Accessories
For full details of Flue Accessories (elbows, extensions,
clamps etc.) refer to the Flue Accessories & Fitting Guide
supplied in the literature pack.
WARNING
SUPPORT - All flue systems MUST be securely
supported, a MINIMUM of once every metre and at
each change of direction. It is recommended that
every straight piece is supported irrespective of
length. Additional supports are available as
accessories.
VOIDS - Consideration must be given to flue systems
in voids and the provision of adequate access for
subsequent periodic visual inspection.
7215845 - 01 (08/14)
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33
5
Before Installation
5.4
Unpacking & Initial Preparation
5.4.1
Unpacking
1. Follow the procedure on the carton to unpack the boiler. See
Section 2.3.1 Handling before lifting the boiler.
5.4.2
Initial Preparation
1. After considering the site requirements, position the fixing
template on the wall ensuring it is level both horizontally and
vertically (Fig. 20).
2. Mark the position of the four most suitable fixing slots for the
wall bracket, the lower securing point and the position of the
centre of the flue hole whether rear, top or side flue.
Fig. 18
3. If required, mark the position of the gas and water pipes, and
the electrical supply. Remove the template.
Part No. 7212282-01
116mm Dia Minimum
Aperture For Flue Tube
Heating
Return
(22mm)
155mm
Heating
Flow
(22mm)
Position of Elbow Rear Flue
200mm Minimum
Clearance
60mm
Vertical Flue
Centre Line
56mm
35mm Minimum
Clearance for
Rear Flue
4. Cut the hole for the required flue position (rear, top or side)
using a minimum diameter of 116mm.
Boiler Mounting Bracket
Horizontal Securing Tongue
Locate the slots in the boiler
hanging bracket over the
horizontal securing tongues
Securing Points
110mm Dia Minimum
Aperture For Flue Tube
5. Drill the wall as previously marked to accept suitable wall
plugs. Secure the wall bracket using appropriate fixing screws.
WALL FIXING BRACKET
Securing Points
For Side Flue Exit
IMPORTANT: For ease of installation it is
recommended that the horizontal tongues
and slots are visible whilst mounting the
appliance. Familiarise yourself with the
method of fixing and retaining before
commencing.
6. Using a spirit level ensure that the bracket is level before
finally tightening the screws (Fig. 21).
Fig. 19
5 mm Minimum
Side Clearance
5 mm Minimum
Side Clearance
IMPORTANT
The minimum clearances must be
maintained for regular operation
and servicing.
7. For top flue installation, the flue can be fitted after the boiler
has been fitted to the wall bracket (see Section 6.1).
Electrical
Socket
Profile of
Outercase
Gas
Inlet
(22mm)
Condensate
Drain Connection
47mm
Mains Input
Part No. 7212282-01
25mm Min
Cupboard
Clearance
95mm
If the boiler is being fitted in a cupboard or other place
where clearance underneath will be at the minimum
35mm (see Section 5.3.6) all soldering and pipework
should be completed prior to installation. Also the lower
panel retaining cords can be dispensed with - See
Section 10.2 for removal of the lower panel - the cords
can then be disconnected.
142mm
120mm Minimum
Clearance
Safety
Bracket
Fig. 20
Fig. 21
Wall Bracket
Sealing
Caps
8. Lift the boiler using the lower polystyrene packing and locate
the slots in the wall bracket over the horizontal tongues on the
wall bracket. As the boiler is pushed back the wall bracket spring
latch will positively engage over the wall bracket (Figs. AA, BB &
CC).
9. Locate the slots in the safety bracket over the two vertical
tongues on the wall bracket and secure with the two screws
(Fig CC). Adjust the jack screw to ensure the boiler is fully
vertical and then insert the lower securing screw.
Lower Securing
Point Screw
Fig. BB
Fig. AA
Fig.22
34
MainEco Heat
Snap off rear polystyrene
and lift using lower
polystyrene (can be
discarded if space is limited)
Horizontal
Tongue
Spring
Latch
Fig. CC
Safety
Bracket
Screw
7215845 - 01 (08/14)
Before Installation
5.4.3
5
Making the Water Connections (Fig. 22)
1. There are two water connections at the top of the boiler. The
left connection is the return pipe (blue) and the flow the right
hand one (red). Remove the sealing caps from the boiler
connections.
2. It is essential that the flow and return pipes are connected to
the boiler correctly. The boiler connections will accept 22mm
compression fittings.
3. For a top flue installation make sure the water connections do
not clash with the flue position.
When soldering of joints is to be performed under
the boiler the condensate trap must be removed
to prevent damage.
5.4.4
Filling the Condensate Trap
1. The condensate trap must be filled with water before the
boiler is commissioned.
2. If access to the condensate trap is impeded remove the facia
panel with the User Interaction Controller.
3. Disengage the condensate trap retaining clip and carefully
pull out the trap. Remove and discard the sealing cap.
4. Fill the condensate trap with tap water to a depth of
approximately 75mm.
90° rubber hose
5. Carefully relocate the condensate trap in the boiler ensuring
all seals are located properly and reattach the retaining clip.
6. If necessary remove the boiler front panel to inspect that the
seals are located properly and refit the facia panel with the User
Interaction Controller.
Sealing Cap - to
be discarded
Condensate
Trap
5.4.5
Connecting the Condensate Drain (Fig. 23)
1. Using the 90° rubber hose supplied, connect the condensate
drain pipework to the boiler condensate trap outlet pipe.
Fig. 23
Ensure the discharge of condensate complies with any
national or local regulations in force (see British Gas “Guidance
Notes for the Installation of Domestic Gas Condensing Boilers”
& HHIC recommendations) and Section 5.3.5.
Elbow & Nut
Sealing
Washer
2. The hose will accept 21.5mm (3/4in) plastic overflow pipe
which should generally discharge internally into the household
drainage system. If this is not possible, discharge into an
outside drain is acceptable.
Gas Cock
5.4.6
Connecting the Gas Supply (Fig. 23a)
1. The elbow and nut assembly supplied must be used to
connect to the gas supply. The flared end of the elbow is
22mm O.D.
Fig. 23a
7215845 - 01 (08/14)
2. Engage the nut onto the gas cock, ensuring that the sealing
washer is in place. Tighten the nut.
MainEco Heat
35
6
Installation
6
Installation
6.1
Air Supply / Flue Gas Connections
6.1.1
m
Connecting the Top Flue
0m
50
HORIZONTAL TELESCOPIC FLUE
m
5m
31
1. There are two telescopic sections, the Terminal Assembly
and the Connection Assembly, a roll of sealing tape and two self
tapping screws. A 93° elbow is also supplied.
Terminal Assembly
Connection Assembly
Fig. 24
2. The two sections can be adjusted to provide a length
between 315mm and 500mm (Fig. 24) when measured from the
flue elbow (there is 40mm engagement into the elbow).
3. Locate the flue elbow on the adaptor at the top of the boiler.
Set the elbow to the required orientation (Fig. 25).
Wall Thickness
The flue elbow is angled at 93 degrees to ensure a fall
back to the boiler.
(X)
4. Measure the distance from the outside wall face to the elbow.
This dimension will be known as ‘X’ (Fig. 25).
5. If the distance from the flue elbow to the outside face of the
wall (‘X’ in Fig. 25) is less than 250mm the Connection
Assembly can be discarded and the Terminal Assembly fitted
directly into the elbow.
6. In instances where the dimension ‘X’ (Fig. 25) is between
250mm and 315mm it will be necessary to shorten the Terminal
Assembly by careful cutting to accommodate walls of these
thicknesses.
(X)
Wall
Thickness
Fig. 25
7. To dimension ‘X’ add 40mm. This dimension to be known as
‘Y’.
‘TOP’ Label
8. Adjust the two telescopic sections to dimension ‘Y’ and seal
the joint with the tape provided (Fig. 26). Ensure that the labels
marked ‘TOP’ on the Terminal and Connection Assemblies are
uppermost.
Y’
n‘
io
ns
e
Dim
Sealing Tape
9. Using the clearance holes in the Connection Assembly
secure it to the Terminal Assembly using the screws supplied
(Fig. 27).
‘Peak’ to be
uppermost
‘TOP’ Label
Fig. 26
Securing Screw
Fig. 27
36
MainEco Heat
7215845 - 01 (08/14)
Installation
6
Spring Latch
10. Lift the boiler and locate the slots in the wall bracket over
the horizontal tongues on the wall bracket. As the boiler is
pushed back the wall bracket spring latch will positively engage
over the wall mounted bracket (Figs. AA, BB & CC).
Horizontal
Tongue
Fig. AA
11. Locate the slots in the safety bracket over the two vertical
tongues on the wall bracket and secure with the two screws
(Fig CC).
Fig. BB
Safety
Bracket
12. Insert the flue through the hole in the wall. Fit the elbow to
the boiler adaptor, ensuring that it is pushed fully in (Fig. 29).
13. Draw the flue back through the wall and engage it in the
elbow. It may be necessary to lubricate to ease assembly of the
elbow and flue (Fig. 30).
Screw
Fig. CC
14. Ensure that the terminal is positioned with the slots to the
bottom (Fig. 31). Secure the flue to the elbow with the screws
supplied (Fig. 30).
Boiler Elbow
Apply the lubricant
supplied for ease of
assembly (do not
use any other type).
Ensure Elbow is
fully engaged into
Boiler Adaptor
It is essential that the flue terminal is fitted as shown to
ensure correct boiler operation and prevent water
entering the flue. There must be no part of the air duct
(white tube) visible outside the property after
installation.
Adaptor
15. Make good between the wall and air duct outside the
building, appropriate to the wall construction and fire rating.
16. If necessary fit a terminal guard (see Section 5.3.11).
Fig. 29
If not already done so, make the water connections, fill
the condensate trap, connect the condensate drain and connect
the gas supply as described in Sections 5.4.3, 5.4.4, 5.4.5 &
5.4.6 respectively.
Apply the lubricant
supplied for ease of
assembly (do not use
any other type).
Ensure Flue is fully
engaged into Elbow
Fig. 30
Slots at bottom
Fig. 31
7215845 - 01 (08/14)
MainEco Heat
37
6
Installation
6.2
Electrical Connections
6.2.1
Electrical Connections of the Appliance
1. See Section 5.2.2. for details of the electrical supply. 1.3
metres of 3 core cable are supplied connected to the boiler.
2. The cable live must be connected to the control system
switched live.
6.2.2
Connecting External Devices
1. System Controls - This boiler operates on a switched live only.
2. To comply with Part L1 of the Building Regulations the heating
system into which the boiler is installed should include the
following:
a)
Zone Controls
b)
Timing Controls
c)
Boiler Control Interlocks (Room & Cylinder
Thermostats)
3. Such a system needs to be fully pumped and must provide
independent temperature and time control to both the heating
and hot water circuits.
Fig. 32
4. An automatic bypass must be fitted on the system for
protection of the boiler and pump.
3 Core Cable
5. Connection diagrams for Y and S plan systems are shown.
Key to colours
b
br
w
o
gr
g/y
-
Blue
Brown
White
Orange
Grey
Green/Yellow
230V
50Hz
L N E
Y Plan
Diverter
Valve
b
g/y
w
Cylinder
Stat
gr
b
gr
L N E
Motor
b
br
o
g/y
C 2
Motor
br
gr
1
Room
Stat
230V
50Hz
S Plan
Valve
Room Cylinder
Stat
Stat
o
g/y
S Plan
Valve
o
Boiler
L
E
Boiler
N
L
E
N
Timer
L
N
CH on
HW on
HW off
Timer
NE L
Pump
Y Plan, Room Thermostat System, CH Interlocked By Room
Thermostat
At least the Radiator(s) near the Room Thermostat not TRV’d
Pump run from Switched Live
38
MainEco Heat
L
N
CH on
HW on
NE L
Pump
S Plan, Room Thermostat System, CH Interlocked By Room
Thermostat
At least the Radiator(s) near the Room Thermostat not TRV’d
Pump run from Switched Live
7215845 - 01 (08/14)
Installation
6.3
6
Filling the System
See Section 5.2.6. for details of treating the system,
Section 5.2.7. for open vent system details, Section 5.2.9. for
sealed system details and Section 5.4.4. for filling the
condensate trap.
6.4
Completing the Installation
6.4.1
Completion
1. Before turning on the electrical and gas supply to commission
the boiler, check that all the installation requirements for the
chosen heating system and flue options have been satisfied.
2. Ensure that the system is vented to expel any excess air.
7215845 - 01 (08/14)
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39
7
Commissioning
7
Commissioning
7.1
General
1. Reference should be made to BS:EN 12828 & 14336 when
commissioning the boiler.
2. At the time of commissioning, complete all relevant sections of
the Benchmark Checklist at the rear of this publications.
3. Turn the gas supply on and purge according to in GB BS 6891
and in IE I.S. 813 “Domestic Gas Installations”.
The combustion for this appliance has been checked,
adjusted and preset at the factory for operation on the
gas type specified on the appliance data plate.
7.2
Checklist before Commissioning
7.2.1
Preliminary Electrical Checks
1. Prior to commissioning preliminary electrical system checks
should be carried out.
2. These should be performed using a suitable meter, and
include checks for Earth Continuity, Resistance to Earth, Short
Circuit and Polarity.
7.2.2
Checks
Check that the boiler has been installed in accordance with
these instructions.
Check the integrity of the flue system and the flue seals.
Check the integrity of the boiler combustion circuit and the
relevant seals.
Check the integrity of all gas and water joints.
7.3
Commissioning Procedure
CAUTION
On first firing the boiler, an odour may be present for
a short period.
1. Open the main gas supply.
2. Open the gas cock on the boiler.
3. Set the controls (thermostats, control system) so that they
request heat to turn the boiler on.
4. The boiler incorporates an automatic air vent. As supplied
this is in the open position to allow venting of the system.
40
MainEco Heat
7215845 - 01 (08/14)
Commissioning
7.4
7
Gas Settings
7.4.1
Flue Sampling
Point
‘Chimney Sweep’ Mode (CSM)
1. The current operating condition of the boiler is shown by the
button on the User Interaction Controller. The
button can flash in a range of colours and at different
frequencies.
Plug
2. Follow the flow chart on the next page to comply with the
requirement to check combustion on commissioning.
Analyser Probe
3. Setting the boiler to maximum and minimum heat outputs is
achieved as follows;
•
•
•
•
Press the
button for 3 seconds.
CSM is activated and will go to the min rate.
Pressing again will make it adjust to max rate.
To exit press the RESET for 3 seconds.
Fig. 33
After refitting the sampling point
plug ensure there is no leakage
of products !
7215845 - 01 (08/14)
MainEco Heat
41
7
Commissioning
7.4.2
Set Boiler to Maximum Rate
Allow the combustion to
stabilise. Do not insert probe
to avoid ‘flooding’ the analyser.
Verify Flue Integrity
Indication that products of
combustion & inlet air are
mixing - further
investigation is required.
Check all flue components
are correctly assembled,
fixed & supported. Check
the flue & terminal are
unobstructed.
‘Chimney Sweep’ Mode - Combustion Check
1. This procedure is mandatory in GB from April 2014. It is
recommended to perform the procedure before that date.
Perform Flue Integrity
Combustion Check
Insert the analyser probe into
the air inlet test point, allowing
the reading to stabilise.
No
Is O2 20.6% and
CO2 < 0.2% ?
Yes
Check CO & Combustion
Ratio at Maximum Rate
Whilst the boiler is still
operating at maximum insert
the analyser probe into the
flue gas test point, allowing
the reading to stabilise.
Set Boiler to Minimum Rate
Is O2 20.6% and
CO2 < 0.2% ?
No
TURN APPLIANCE OFF !
Call 0844 871 1555 for
advice.
The appliance MUST NOT
be commissioned until all
problems are identified
and resolved.
Yes
No
Is CO < 350ppm
and CO/CO2 ratio
< 0.004 ?
Verify Integrity of Seals
Check all burner seals,
internal flue seals, door &
case seals. Replace any
seals that appear unsound.
Is CO < 350ppm
and CO/CO2 ratio
< 0.004 ?
Yes Allow the combustion to
stabilise. Do not insert probe
to avoid ‘flooding’ the
analyser.
Check CO & Combustion
Ratio at Minimum Rate
Whilst the boiler is
operating at minimum insert
the analyser probe into the
flue gas test point, allowing
the reading to stabilise.
Yes
No
TURN APPLIANCE OFF !
Call 0844 871 1555 for advice.
The appliance MUST NOT be
commissioned until all
problems are identified and
resolved.
If commissioning cannot be
fully completed the appliance
must be disconnected from the
gas supply in accordance with
the GSIUR.
Note: Check & record the CO
& combustion ratio at both
maximum & minimum rates
before calling 0844 871 1555.
42
MainEco Heat
No
Is CO < 350ppm
and CO/CO2 ratio
< 0.004 ?
Yes
BOILER OPERATING
SATISFACTORILY. NO
FURTHER ACTION
REQUIRED
Ensure test points are capped,
the boiler case front panel is
correctly fitted & secured and
all other commissioning
procedures completed.
Complete the ‘Benchmark’
Checklist, recording the CO &
combustion ratio readings as
required.
7215845 - 01 (08/14)
Commissioning
7.5
7
Configuring the System
7.5.1
Check the Operational (Working) Gas Inlet
Pressure
1. Ensure that all controls are calling for heat and maximum load
is applied to the system.
2. With the boiler operating in the maximum rate condition check
that the operational (working) gas pressure at the inlet gas
pressure test point is in accordance with B.S. 6798 & B.S. 6891.
This must be AT LEAST 17mb ! (Fig. 34)
3. Ensure that this inlet pressure can be obtained with all other
gas appliances in the property working.
Measure the Gas Rate
4. With any other appliances & pilot lights turned OFF the gas
rate can be measured. It should be as shown in Section 3.1
Technical Data.
5. For IE, it is necessary to complete a “Declaration of
Conformity” to indicate compliance with I.S. 813. An example of
this is given in I.S. 813 “Domestic Gas Installations”. This is in
addition to the Benchmark Commissioning Checklist.
Check gas pressure here
Gas Valve
17-21 mbar
Gas Cock
18-22 mbar
19-23 mbar
Gas Meter
Fig. 34
Working Gas Pressures
If the pressure drops are greater than shown
above a problem with the pipework or connections
is indicated.
7215845 - 01 (08/14)
MainEco Heat
43
7
Commissioning
7.6
Final Instructions
1. Carefully read and complete all sections of the Benchmark
Commissioning Checklist at the rear of this publication that are
relevant to the boiler and installation. These details will be
required in the event of any warranty work.
2. The publication must be handed to the user for safe keeping
and each subsequent regular service visit recorded.
3. Hand over the User’s Operating, Installation and Servicing
Instructions, giving advice on the necessity of regular servicing.
4. For IE, it is necessary to complete a “Declaration of
Conformity” to indicate compliance with I.S. 813. An example of
this is given in I.S. 813 “Domestic Gas Installations”. This is in
addition to the Benchmark Commissioning Checklist.
5. Instruct the user in the operation of the boiler controls. Hand
over the User’s Operating, Installation and Servicing
Instructions, giving advice on the necessity of regular servicing.
6. Demonstrate to the user the action required if a gas leak
occurs or is suspected. Show them how to turn off the gas
supply at the meter control, and advise them not to operate
electric light or power switched, and to ventilate the property.
7. Show the user the location of the system control isolation
switch, and demonstrate its operation.
8. Advise the user that they may observe a plume of vapour
from the flue terminal, and that it is part of the normal operation
of the boiler.
9. Complete the label supplied with the inhibitor and stick to the
inside of the boiler case. Detail of system treatment must be
recorded in the Benchmark Commissioning Checklist.
44
MainEco Heat
7215845 - 01 (08/14)
Operation
8
Operation
8.1
General
8
1. It is the responsibility of the installer to instruct the user in the
day to day operation of the boiler and controls and to hand over
the completed Benchmark Checklist at the back of this manual.
2. Set the central heating and hot water temperatures to the
requirements of the user. Instruct the user in the operation of the
boiler and system.
3. The temperature on the boiler rotary knob must be set to a
higher temperature than the cylinder thermostat to achieve the
required hot water demand.
4. Instruct the user in the operation of the boiler and system
controls.
5. Demonstrate to the user the action required if a gas leak
occurs or is suspected. Show them how to turn off the gas
supply at the meter control, and advise them not to operate
electric light or power switched, and to ventilate the property.
6. Show the user the location of the system control isolation
switch, and demonstrate its operation.
7. Advise the user that they may observe a plume of vapour from
the flue terminal, and that it is part of the normal operation of the
boiler.
8. When installed on a sealed system the method of
repressurising the primary system should be demonstrated.
8.2
Start-up
1. Switch on the boiler at the fused spur unit and ensure that the
time control is in the on position and any other controls (i.e.
room thermostat) are calling for heat.
2. The boiler will begin it start sequence.
3. The orange LED will flash at EVERY heating demand. The
number of flashes will correspond with the output of the boiler
e.g. 4 orange flashes = 21kW. This is normal and does not
indicate a fault condition.
8.3
Shutdown
1. If the CH system is shut down for remedial work requiring
either the electrical power to be switched off or the gas supply to
be turned off then any frost protection present will be inactive.
2. Switching off the boiler’s power supply or turning off the gas
supply will disable any frost protection that has been
incorporated into the control system.
7215845 - 01 (08/14)
MainEco Heat
45
8
Operation
8.4
Use of the Control Panel
See Section 4.4 Control Panel Description
8.5
Frost Protection
1. To prevent radiators and pipework from freezing in areas
where there is a risk of frost (e.g. a garage or storage room), a
frost thermostat should be connected to the control system.
The following arrangement is recommended:Utilise a room frost thermostat in conjunction with a
pipe thermostat. The pipe thermostat should be located
on the primary return close to the boiler.
46
MainEco Heat
7215845 - 01 (08/14)
Settings
9
Settings
9.1
Parameters
9
The operating parameters for this boiler are factory set.
7215845 - 01 (08/14)
MainEco Heat
47
10
Maintenance
10
Maintenance
10.1 General
WARNING
When changing components ensure that both the
gas and electrical supplies to the boiler are isolated
before any work is started. When the component has
been changed recommission the boiler as described
in Section 7.
The Case Front Panel MUST seal effectively against
the boiler side panels.
1. For reasons of safety and economy, it is recommended that
the boiler is serviced annually. Servicing must be performed by a
competent person in accordance with B.S. 7967-4.
2. After servicing, complete the relevant Service Interval Record
section of the Benchmark Commissioning Checklist at the rear of
this publication.
During routine servicing, and after any maintenance or
change of part of the combustion circuit, the following
must be checked:• The integrity of the complete flue system and the flue seals
by checking air inlet sample to eliminate the possibility of
recirculation. O2 20.6% & CO2 < 0.2%
• The integrity of the boiler combustion circuit and relevant
seals.
• The operational gas inlet pressure and the gas rate as
described in Section 7.5.1.
• The combustion performance as described in ‘Check the
Combustion Performance’ below.
3. Competence to carry out Checking Combustion
Performance B.S. 6798 ‘Specification for Installation &
Maintenance of Gas Fired Boilers not exceeding 70kWh’ advises
that:-
Flue Sampling
Point
Plug
• 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.
Analyser Probe
• 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 BS 7967, Parts 1 to 4.
4. Check the Combustion Performance (CO/CO2 ratio)
Set the boiler to operate at maximum rate as described
in Section 7.4.
Fig. 35
After refitting the sampling point
plug ensure there is no leakage
of products !
48
MainEco Heat
5. Remove the plug from the flue sampling point (Fig. 35), insert
the analyser probe and obtain the CO/CO2 ratio. This must be
less than 0.004. If the combustion reading (CO/CO2 ratio) is
greater than this, and the integrity of the complete flue system
and combustion circuit seals has been verified, and the inlet gas
pressure and gas rate are satisfactory either:• Perform the ‘Standard Inspection and Maintenance’ (Section
10.2) & re-check.
• Perform ‘Setting the Gas Valve’ (Section 10.3.13) & re-check.
• Replace and set the gas valve (Sections 10.3.10 & 13) &
re-check.
7215845 - 01 (08/14)
Maintenance
10
10.2 Standard Inspection and Maintenance Operation
WARNING
Ensure that the boiler is cool.
Ensure that both the gas and electrical supplies to
the boiler are isolated. Electrical isolation can be
checked at the electrical test point.
CAUTION
During inspection and maintenance operations,
always replace all gaskets on the parts removed.
Fig. 36
Use only original spare parts that are intended for
use with this type of boiler.
When performing any inspection or maintenance
personal protective equipment must be used where
appropriate.
1. Unscrew the two securing screws on the front panel. Remove
the front panel (Figs. 36 & 37).
2. Visually check for debris/damage and clean or replace if
necessary the following:
Fig. 37
a)
b)
c)
d)
e)
f)
Check the water pressure (sealed systems)
Check the flue pipes and air supply pipes for leaks
Check and clean (if necessary) the condensate trap
Check the ignition electrode (replace if necessary)
Check the combustion
Complete the relevant Service Interval Record section of
the Benchmark Commissioning Checklist at the rear of
this publication and then hand it back to the user
Fig. 38
Electrical Test
Point
7215845 - 01 (08/14)
MainEco Heat
49
10
Maintenance
10.3 Specific Maintenance Operation
WARNING
Spark Ignition
Electrode
Earth
Wire
When changing components ensure that both the
gas and electrical supplies to the boiler are isolated
before any work is started. When the component has
been changed recommission the boiler as described
in Section 7.
Always examine any seals or gaskets, replacing
where necessary. The Case Front Panel MUST seal
effectively against the air box side panels.
Gasket
Earth Wire
1. See section 10.2 for removal of lower front panel and front
panel.
Ignition
Electrode
Plug
10.3.1
Spark Ignition Electrode (Fig. 39)
1. Disengage the fan protective cover securing tab and lower
the cover.
2. Disconnect the ignition electrode plug from the PCB and the
earth wire from the electrode.
Tab
Fan Protective
Cover
Automatic
Air Vent
Press the tap to
hinge down the
Fan Protective
Cover
3. Undo the two securing screws securing and remove the
electrode and gasket.
Fig. 39
4. Fit the new electrode and if necessary replace the gasket.
Connect the electrode lead to the PCB and earth wire to the
new electrode.
10.3.2
Automatic Air Vent (Fig. 40)
1. Remove the clip securing the automatic air vent.
2. Manoeuvre the air vent out of the adaptor in the heat
exchanger.
3. Fit the new air vent and if necessary replace the ‘O’ ring .
Refit the securing clip.
Clip
Fig. 40
10.3.3
Condensate Trap (Fig. 41)
1. Disengage the condensate trap retaining clip and disconnect
the condensate drain. Carefully pull out the trap.
2. Thoroughly clean the trap and if necessary replace the seal.
3. Fill the condensate trap with tap water to a depth of
approximately 75mm.
Fig. 41
Push the Condensate Trap
Clip either side to release
the trap
4. Carefully relocate the condensate trap in the boiler ensuring
all seals are located properly and reattach the retaining clip.
Condensate Trap
50
MainEco Heat
7215845 - 01 (08/14)
Maintenance
10
Removal of the fan air duct and flue outlet duct is
necessary to enable the changing of the pressure
switch, flow temperature sensor, return temperature
sensor, overheat sensor and gas valve.
Fan Air
Duct
10.3.4
Removal of Ducts (Fig. 42)
1. Remove the air duct by pulling the bottom of the duct forward
to disengage it from the gas valve and then sliding the top of the
duct left away from the fan.
2. Disengage the clip at the top of the flue duct, pull the duct
forwards and then manoeuvre it out of the heat exchanger
sump connection.
10.3.5
Flue Clip
Pressure Switch (21 & 24 only) (Fig. 43)
1. Disconnect the pressure switch wiring from the overheat
sensor wiring harness.
Fig. 42
2. Depress the retaining latch to release the pressure switch
pull to the right and remove it from the top flue duct tube.
3. Fit the new pressure switch, ensuring the ‘O’ ring is in place
on the lower spigot and reconnect to the wiring harness from
the overheat sensor.
Flue Outlet
Duct
Top Flue
Duct Tube
Fig. 43
Pressure Switch
Retaining Latch
Slide Pressure Switch away from
Top Flue Duct Tube
Disconnect from Overheat
Sensor Harness
7215845 - 01 (08/14)
MainEco Heat
51
10
Maintenance
10.3.6
Flow
Temperature
Sensor
Flow Temperature Sensor (Fig. 44)
The sensor is fitted in a ‘dry’ pocket.
Fig. 44
1. Disconnect the wiring from the flow temperature sensor.
2. Unscrew the sensor from the top of the heat exchanger.
3. Fit the new sensor and reconnect the wiring.
Overheat
Sensor
10.3.7
Overheat Sensor (Fig. 44)
The sensor is fitted in a ‘dry’ pocket. For ease of
access remove the Flow Temperature Sensor (10.3.6)
1. Disconnect the wiring from the overheat sensor.
2. Unscrew the sensor from the top of the heat exchanger.
3. Fit the new sensor and reconnect the wiring.
Fan Protective Cover
removed for clarity
10.3.8
Return Temperature Sensor (Fig. 45)
The sensor is fitted in a ‘dry’ pocket.
1. Disconnect the wiring from the return temperature sensor.
Return
Temperature
Sensor
Fig. 45
2. Unscrew the sensor from the top of the heat exchanger.
3. Fit the new sensor and reconnect the wiring.
10.3.9
Parameter Unit (Fig. 46)
1. Push the retaining latch to release the parameter unit and
slide it upwards to remove.
2. Disconnect the wiring from the parameter unit.
3. Fit the new parameter unit and reconnect the wiring.
Push the retaining latch
backwards to release the
Parameter Unit
Slide the Parameter
Unit upwards
Fan Protective Cover
removed for clarity
Parameter
Unit
52
MainEco Heat
Fig. 46
7215845 - 01 (08/14)
Maintenance
10
10.3.10 Gas Valve (Figs. 47, 48 & 49)
After replacing the valve the CO2 must be checked and
adjusted as detailed in Section 10.3.13 Setting the Gas
Valve. Only change the valve if a suitable calibrated
combustion analyser is available, operated by a
competent person - see section 10.1.3.
A T25 Torx screwdriver will be required.
1. Ensure that the gas supply to the boiler is isolated.
Remove the ducts as described in Section 10.3.4
2. Disconnect the cable from the bottom of the PCB, disengage
the fan protective cover securing tab and lower the cover.
Combustion
Control Unit
Fig. 47
3. Taking care not to touch the PCB components, disconnect
the electrode lead, earth lead, mains power cable and the main
sensor harness from the board. Re-engage the fan protective
cover.
4. Disconnect the plug from the gas valve and undo the nut on
the gas inlet pipe at the base of the valve.
5. Remove the combustion control unit from the boiler by
releasing the over-centre catches that secure it to the heat
exchanger (Fig. 47).
View from
behind
Combustion
Control Unit
Gas Valve
Securing Screws
Fig. 48
6. Remove the T25 screws securing the gas valve to the fan
assembly.
7. Lift the gas valve from its seat and pull it gently downwards
to release it from the fan assembly.
Fan Gas
Supply Pipe
Electrical
Plug
Fan not shown for
clarity
Gas Valve
Securing Screws
Gas Inlet
Pipe
Fig. 49
8. Remove the 2 O-Rings from the gas feed pipe and replace
with new ones supplied in the kit. Take care not to damage the
O-Rings when refitting. Apply a small quantity of the silicone
grease provided to aid reassembly of the gas valve (Fig. 49).
9. Push the new gas valve onto the gas feed pipe taking care
not to damage the O-Ring seals and push home securely.
Secure the valve using the 2 T25 screws and shakeproof
washers.
10. Reassemble all components in reverse order. When a seal
kit is provided replace the existing seals with the new ones.
Inspect all other seals before reassembly and replace if
necessary. Check all the joints are tight and wires are securely
connected.
Check gas tightness & CO2 !
To assist the boiler to light prior to final setting, use a
suitable hexagon key to wind out the Throttle
Adjustment Screw until it is flush with the valve body,
then turn the screw 4 full turns clockwise. If the boiler
will not light, or the correct CO2 cannot be achieved
contact the ‘heateam’ technical helpline.
See Section 10.3.13 for CO2 check.
7215845 - 01 (08/14)
MainEco Heat
53
10
Maintenance
Burner Manifold
10.3.11 Control & Fan Assembly (Figs. 50, 51 & 52)
1. Ensure that the gas supply to the boiler is isolated.
Remove the ducts as described in Section 10.3.4
An ESD wrist strap should be used when replacing
these components.
A T25 screwdriver will be required.
2. Disconnect the cable from the bottom of the PCB, disengage
the fan protective cover securing tab and lower the cover.
Control & Fan
Assembly
3. Taking care not to touch the PCB components, disconnect
the electrode lead, earth lead, mains power cable and the main
sensor harness from the board. Re-engage the fan protective
cover.
Fig. 50
4. Disconnect the plug from the gas valve and undo the nut on
the gas inlet pipe at the base of the valve.
5. Remove the gas assembly from the boiler by releasing the
over-centre catches that secure it to the heat exchanger.
6. Remove the screws securing the gas valve. Remove
the gas valve by lifting it from its seat and pulling it downwards.
View from
behind
Combustion
Control Unit
Gas Valve
Securing Screws
7. Using the special tool provided, remove the 4 T20 Torx
screws securing the burner manifold and set the manifold aside.
Fig. 51
Fan Gas
Supply Pipe
Gas Valve
Securing Screws
Fig. 52
Fan not shown for
clarity
8. Fit the burner manifold to the new fan and PCB assembly
using the new seals and screws provided in the kit. Do not
overcompress the manifold gasket or use any grease.
Check visually that the gasket is correctly in place.
9. Replace the gas valve ensuring new O ring seals are
greased prior to replacing the pipe.
10. Reassemble all components in reverse order. When a seal
kit is provided replace the existing seals with the new ones.
Inspect all other seals before reassembly and replace if
necessary. Check all the joints are tight and wires are securely
connected.
10.3.12 User Interaction Controller (Fig. 53)
1. Disconnect the User Interaction Controller cable from the
PCB and undo the cable gland locknut.
2. Note the setting of the rotary temperature selection knob.
3. Ease apart the retaining clips on the lower panel and
withdraw the User Interaction Controller and cable.
Fig. 53
Rotary
Knob
54
MainEco Heat
User Interaction Controller
4. Reassemble in reverse order, setting the rotary knob as
previously noted.
7215845 - 01 (08/14)
Throttle
Adjustment Screw
Maintenance
10
10.3.13 Setting the Gas Valve (CO2 Check)
The CO2 must be only be checked and adjusted to set
the valve if a suitable calibrated combustion analyser is
available, operated by a competent person - see
Section 10.1.3.
Fig. 54
Fig. 55
Chimney Sweep Button
1. The maximum rate CO2 setting can only be reached via the
minimum rate. Press the Chimney Sweep (Fig. 55) button for
approximately 3 seconds. The status signal for the Chimney
Sweep button is orange and flashes green briefly to show that
the minimum rate is selected.
2. Press the Chimney Sweep button again once. The orange
status light for the Chimney Sweep button goes off briefly once
and maximum rate is selected.
Flue Sampling
Point
When the boiler first lights wait a short time before
inserting the analyser probe to avoid saturation.
Plug
Fig. 56
3. Remove the plug from the flue sampling point (Fig. 56) and
insert the probe of the flue gas analyser.
4. Check the CO2 is 9.3% ±0.1%. If the CO2 is incorrect alter
the Throttle Adjustment Screw (Fig. 57). Turn the screw
anticlockwise to increase the CO2 or clockwise to decrease
(2.5mm hexagon key).
Analyser Probe
Throttle
Adjustment Screw
(cover removed)
Offset
Adjustment Screw
(cap fitted)
Reduce CO2
at max. rate
Reduce CO2
at min. rate
Increase CO2
at min. rate
If a new gas valve has been fitted it is recommended
that to assist the boiler to light prior to final setting, use
a suitable hexagon key to wind out the Throttle
Adjustment Screw (Fig. 54) until it is flush with the
valve body, then turn the screw 4 full turns clockwise. If
the boiler will not light, or the correct CO2 cannot be
achieved contact the ‘heateam’ technical helpline.
Gas Valve
Fig. 57
Increase CO2
at max. rate
Do not turn either adjustment screw more than 1/8 of a
turn at a time. Allow the analyser reading to settle
before any further adjustment.
5. Press the Chimney Sweep button twice to select the
minimum rate. The orange status light for the Chimney Sweep
button flashes green briefly and minimum rate is selected.
6. Check the CO2 is 8.9% ±0.1%. If the CO2 is incorrect alter
the Offset Adjustment Screw (Fig. 57). Turn the screw clockwise
to increase the CO2 or anticlockwise to decrease (4mm
hexagon key).
Re-check both the maximum and minimum values if
any adjustment has been made. THERE MUST
ALWAYS BE A DIFFERENCE OF 0.4% BETWEEN
MAXIMUM & MINIMUM CO2 READINGS !
7. Check the Combustion Performance (CO/CO2 ratio). This
must be less than 0.004.
8. Briefly press the RESET button to return the boiler to normal
operating status and remove the analyser probe.
Refit the sampling point plug & ensure there is no
leakage of products !
7215845 - 01 (08/14)
MainEco Heat
55
11
Troubleshooting
11
Troubleshooting
11.1 Error Codes
Operation status and error codes are displayed on the “chimney
sweep” button (3) on the control panel. In normal operation this
button is illuminated and goes off for a time once periodically.
When normal operation is interrupted for some reason this
button will turn off and flash on a number of times periodically.
The colour and number of flashes displayed is dependent on
the boiler status or fault condition.
The orange LEDs will flash at EVERY heating demand.
The number of flashes will correspond with the output
of the boiler as shown in the table. e.g. 4 orange flashes
= 21kW. This is normal and does not indicate a fault
condition.
“Error” or auto reset conditions (Green flashes on
“chimney sweep”)
The following TABLE describes the conditions that may result in
a blocking signal being displayed.
The boiler will try to re-start several times, and normal operation
will resume once the blocking condition has been eliminated.
Should the conditions persist the boiler may go into lock-out
(see following section)
56
Status
signal
1 flash
green
Description
Temperature
protection
• Maximum flow temperature
exceeded,
• Flow temperature rise rate too
high,
• Excessive difference between
flow and return temperature
2 flashes
green
Shutdown input
• BL terminals on HMI are open
circuit
3 flashes
green
Flame loss
• No flame detected during
operation
4 flashes
green
Communication
fault
• Bad connection or wiring fault
• Internal communication fault
5 flashes
green
Parameter fault
• Parameter error or faulty PU
• Configuration error or PCB fault
• Replace PU and recommission
• Replace control/fan assy
6 flashes
green
Miscellaneo us
• Internal fault in combustion
control unit
• Replace combustion control unit
MainEco Heat
Remedial actions by service
engineer
• Check system circulation &
pump operation
• Check demands for boiler
operation (switched live operation)
• Check temperature setting
• Check temperature sensors in boiler
• If condensate pump is wired
to these terminals check
operation of condensate pump
• Check wiring to BL terminals
(link present or connections to
external device correct)
• Check gas supply is turned on
and gas is available if on a
pre-payment meter
• Check flue condition
• Check wiring/connections
between boiler and User Interaction
Contoller and box
• If necessary replace control/fan assy
7215845 - 01 (08/14)
Troubleshooting
11
Lock-out conditions (Red flashes on “chimney sweep”)
The following TABLE describes the conditions that may result in
a lock-out condition and red flashing signal being displayed.
To reset a lock-out condition press and hold the reset button
until the fault indication flashes rapidly and goes out.
NOTE: a lock-out condition can be re-set up to 5 times within
one hour using the reset button. Any repeating fault should be
fully investigated and appropriate remedial actions taken by a
Gas Safe registered service engineer.
Description
Sensor error
• Bad connection to flow or
return temperature sensor
• Fault with flow or return
temperature sensor(s)
• Low or no flow through boiler
• Reverse flow through boiler
2 flashes
red
High
temperature
protection
• Over-temperature thermostat on
heat exchanger activated
• No water flow through heat
exchanger
• Over-temperature thermostat
fault or bad connection (open
circuit).
• PCB over-temperature condition
• Flue fault resulting in
recirculation or activation of air
pressure switch (if fitted)
3 flashes
red
Ignition fault
• No ignition
• No flame detected following
ignition
• False flame signal detected
• Repeated loss of flame detected
• Check earthing of the appliance
• Check ignition electrode
condition and clean/replace if
necessary
• Check gas valve operation
• Check flue condition
• Check correct combustion/gas
valve settings
• Check condensate drain for
blockage
4 flashes
red
Fan fault
• Fan calibration error
• Fan failure
5 flashes
red
Parameter fault
• Bad connection to PU
• Parameter error or faulty PU
• If fan operates, check flue
installation and condition.
• Replace control/fan assy
• PCB and condition of wiring
loom
• Replace PU and recommission
6 flashes
red
Miscellaneous
• Bad connection or wiring fault
internal or external to the boiler
• Parameter error
• Communication error
7215845 - 01 (08/14)
Possible causes
Remedial actions by service
engineer
• Check connections to
temperature sensors /PCB and
condition of wiring loom
• Check resistance of
temperature sensors
• Check pump operation and
system circulation
• Check connections to and
operation of O/T thermostat
and air pressure switch (if
fitted) and PCB and condition
of wiring loom
• Check system pressure or that
system is not air-locked
• Check pump operation and
system circulation
• Check flue condition
Status
signal
1 flash
red
• Check all wiring connections
are correctly made
• Using a service tool or Recom
software check all parameter
settings
• If necessary replace PU
and/or control/fan assy
MainEco Heat
57
12
Decommissioning
12
Decommissioning
12.1 Decommissioning Procedure
1. Disconnect the gas & electric supplies and isolate them.
2. Drain the primary circuit and disconnect the filling device.
3. Dismantle the chimney system and remove the boiler from the
wall mounting frame.
58
MainEco Heat
7215845 - 01 (08/14)
Spare Parts
13
13
Spare Parts
13.1 General
1. If, following the annual inspection or maintenance any part of
the boiler is found to need replacing, use Baxi Spare Parts only.
B
A
13.2 Spare Parts List
D
C
E
Key
No.
Description
Manufacturer’s
Part No.
A
Parameter Unit
7216298
B
Sensor Kit
7216301
C
Automatic Air Vent
7216300
D
Electrode Set
7216299
E
Pressure Switch
7212522
F
Combustion Control Unit
7216292
G
User Interaction Controller
7600498
H
Gas Valve
7618108
I
Control & Fan Assembly
7618106
F
G
H
I
7215845 - 01 (08/14)
MainEco Heat
59
Notes
60
MainEco Heat
14
7215845 - 01 (08/14)
7215845 - 01 (08/14)
Notes
14
MainEco Heat
61
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.
Failure to install and commission according to the manufacturer’s instructions and complete this Benchmark Commissioning Checklist will invalidate the
warranty. This does not affect the customer’s statutory rights.
Customer name:
Telephone number:
Address:
Boiler make and model:
Boiler serial number:
Commissioned by (PRINT NAME):
Gas Safe register number:
Company name:
Telephone number:
Company address:
Commissioning date:
CONTROLS (tick the appropriate boxes)
Room thermostat and programmer/timer
Programmable room thermostat
Load/weather compensation
Optimum start control
Cylinder thermostat and programmer/timer
Combination Boiler
Heating zone valves
Fitted
Not required
Hot water zone valves
Fitted
Not required
Thermostatic radiator valves
Fitted
Not required
Automatic bypass to system
Fitted
Not required
Time and temperature control to heating
Time and temperature control to hot water
Boiler interlock
Provided
ALL SYSTEMS
’s instructions
Yes
What system cleaner was used?
What inhibitor was used?
Quantity
Yes
litres
No
CENTRAL HEATING MODE measure and record:
Gas rate
m³/hr
OR
ft³/hr
Burner operating pressure (if applicable)
mbar
OR Gas inlet pressure
mbar
°C
Central heating return temperature
°C
COMBINATION BOILERS ONLY
Is the installation in a hard water area (above 200ppm)?
Yes
No
Yes
No
DOMESTIC HOT WATER MODE Measure and Record:
Gas rate
m³/hr
Burner operating pressure (at maximum rate)
mbar OR Gas inlet pressure at maximum rate
OR
ft³/hr
mbar
Cold water inlet temperature
°C
Hot water has been checked at all outlets
Yes
Temperature
°C
I/min
CONDENSING BOILERS ONLY
The condensate drain has been installed in accordance with the manufacturer’s instructions and/or BS5546/BS6798
Yes
ALL INSTALLATIONS
Record the following:
At max. rate:
CO
ppm AND
At min. rate: (where possible)
CO
ppm AND
CO/CO²
CO/CO²
The heating and hot water system complies with the appropriate Building Regulations
Ratio
Ratio
Yes
The boiler and associated products have been installed and commissioned in accordance with the manufacturer’s instructions
Yes
The operation of the boiler and system controls have been demonstrated to and understood by the customer
Yes
The manufacturer’s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer
Yes
Commissioning Engineer’s Signature
Customer’s Signature
*All installations 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.
62
© Heating and Hotwater Industry Council (HHIC)
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
Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions.
SERVICE 01
Date:
SERVICE 02
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Gas safe register No:
Record:
At max. rate:
Gas safe register No:
CO
ppm
AND
At min. rate: (Where Possible) CO
ppm
AND
CO² %
CO² %
Record:
At max. rate:
CO
ppm
AND
At min. rate: (Where Possible) CO
ppm
AND
Comments:
Comments:
Signature
Signature
SERVICE 03
Date:
SERVICE 04
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Gas safe register No:
Record:
At max. rate:
ppm
AND
At min. rate: (Where Possible) CO
ppm
AND
CO² %
CO² %
Record:
At max. rate:
CO
ppm
AND
ppm
AND
Comments:
Signature
Signature
SERVICE 05
Date:
SERVICE 06
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Gas safe register No:
ppm
AND
At min. rate: (Where Possible) CO
ppm
AND
CO² %
CO² %
Record:
At max. rate:
CO
ppm
AND
ppm
AND
Comments:
Signature
Signature
SERVICE 07
Date:
SERVICE 08
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Gas safe register No:
ppm
AND
At min. rate: (Where Possible) CO
ppm
AND
CO² %
CO² %
Record:
At max. rate:
Date:
CO
ppm
AND
At min. rate: (Where Possible) CO
ppm
AND
Comments:
Comments:
Signature
Signature
SERVICE 09
Date:
SERVICE 10
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Gas safe register No:
Record:
CO² %
CO² %
Gas safe register No:
CO
At max. rate:
Date:
At min. rate: (Where Possible) CO
Comments:
Record:
CO² %
CO² %
Gas safe register No:
CO
At max. rate:
Date:
At min. rate: (Where Possible) CO
Comments:
Record:
CO² %
CO² %
Gas safe register No:
CO
At max. rate:
Date:
CO² %
CO² %
Date:
Gas safe register No:
CO
ppm
AND
At min. rate: (Where Possible) CO
ppm
AND
CO² %
CO² %
Record:
At max. rate:
CO
ppm
AND
At min. rate: (Where Possible) CO
ppm
AND
Comments:
Comments:
Signature
Signature
CO² %
CO² %
to Local Authority Building Control (LABC) either directly or through a
*All installations in England and Wales must be
Competent Persons Scheme. A Building Regulations Compliance
will then be issued to the customer.
63
© Heating and Hotwater Industry Council (HHIC)
www.centralheating.co.uk
All descriptions and illustrations provided in this leaflet have been
carefully prepared but we reserve the right to make changes and
improvements in our products which may affect the accuracy of the
information contained in this leaflet. All goods are sold subject to our
standard Conditions of Sale which are available on request.
BAXI
A Tradi n g Div is io n of B ax i Heat i ng U K Lt d (3879156)
Brooks House, Coventry Road, Warwick. CV34 4LL
After Sales Service 0844 871 1525 Technical Enquiries 0844 871 1555
Website www.baxi.co.uk
e&oe
7215845 - 01 (08/14)