Installation, User and
Servicing Instructions
InTec 50CS
Floor standing, high output,
condensing boiler
Leave these instructions with the User
BENCHMARK SCHEME
To comply with Building Regulations Part L1 (Part 6 in Scotland) the boiler should be installed in accordance with the
manufacturer’s instructions. Self-certication that the boiler has been installed to comply with Building Regulations can be
demonstrated by completing and signing the Benchmark Checklist at the back of these instructions
Code of Practice
For the installation, commissioning and servicing of domestic heating and hot water products.
Benchmark places responsibilities on both manufacturers and installers*. e 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. Installers are
required to carry out work in accordance with the following:
Standards of Work
• Be competent and qualied to undertake the work required.
• Install, commission, service and use products in accordance with the manufacturer's instructions provided.
• Ensure that where there is responsibility for design work, the installation is correctly sized and t for purpose.
• Meet the requirements of the appropriate Building Regulations. Where this involves notiable work be a member of a
Competent Persons Scheme or conrm that the customer has notied Local Authority Control (LABC), prior to work
commencing.
• Complete all relevant sections of the Benchmark Check list/Service Record when carrying out commissioning or servicing of
a product or system.
• Ensure that the product or system is le in a safe condition and, where possible, in good working order.
• Highlight to the customer any remedial or improvement work identied during the course of commissioning or servicing
work.
• Refer to the manufacturer's helpline where assistance is needed.
• Report product faults and concerns to the manufacturer in a timely manner.
Customer Service
• Show the customer any identity card that is relevant to the work being carried out prior to commencement or on request.
• Give a full and clear explanation/demonstration of the product or system and its operation to the customer.
• Hand over the manufacturer's instructions, including the Benchmark Checklist, to the customer on completion of an
installation.
• Obtain the customer's signature on the Benchmark Checklist to conrm satisfactory demonstration and receipt of
manufacturer's instructions.
• Advise the customer that regular product servicing is needed, in line with manufacturers' recommendations, to ensure that
safety and eciency is maintained.
• Respond promptly to calls from a customer following completion of their work, providing advice and assistance by phone
and, if necessary, visiting the customer.
• Rectify any installation problems at no cost to the customer during the installer's guarantee period.
* e use of the word "installer" is not limited to installation itself and covers those carrying out installation, commissioning and/or servicing of heating and hot water products, or
the use of supporting products (such as water treatment or test equipment).
** Customer includes householders, landlords and tenants.
e Benchmark Scheme is managed and promoted by:
Heating and Hotwater Industry Council (HHIC)
Camden House, Warwick Rd
Kenilworth
CV8 1TH
Telephone: 01926 513747
E-mail: info@hhic.org.uk
Website: www.hhic.org.uk
Useful contact details; Gas Safe Register - 0800 408 5577 - www.gassaferegister.co.uk
Alpha Heating Innovation;
General Sales Enquiries - 0844 871 8760
Technical Helpline - 0844 871 8764
2Alpha Intec 50CS
CONTENTS
USER pageINSTALLATOR page MAINTENANCE page
1 Boiler installation. ................................................3
1.1 Introduction. ........................................................3
1.2 Dimensions. ..........................................................4
1.3 Connections. ........................................................................4
1.4 Remote controls and programmable room
thermostats (optional).........................................5
1.5 External temperature sensor (optional). ...........5
1.6 Fit the ue. ............................................................6
1.7 Reduce the ue. ....................................................7
1.8 Extend the ue .....................................................8
1.9 Plume management components (optional). ...9
1.10 Vertical ue options. ..........................................11
1.11 Disposal of condensate. .....................................11
1.12 Flush the system. ...............................................12
1.13 Fill the system. ....................................................12
1.14 Circulation pump. ..............................................13
1.15 Boiler components. ............................................15
2 User and maintenance instructions. ................16
2.1 Servicing. ............................................................16
2.2 General warnings. ..............................................16
2.3 Control panel. .....................................................16
2.4 Operating modes. ..............................................17
2.5 Using the boiler. .................................................17
2.6 Fault signals. .......................................................18
2.7 Boiler shutdown. ................................................19
2.8 Restore the system pressure. .............................19
2.9 Drain the system. ...............................................19
2.10 Drain the hot water system. ..............................19
2.11 Anti-freeze protection. ......................................19
2.12 Case cleaning. .....................................................19
2.13 Decommissioning. .............................................19
2.14 Parameters and information menu. ................20
3 Boiler start-up (initial check). ..........................21
3.1 Hydraulic diagram. ............................................21
3.2 Wiring diagram. .................................................22
3.3 Troubleshooting. ................................................22
3.4 “Chimney sweep function”. ...............................22
3.5 Pump anti-seize function. .................................23
3.6 ree-way anti-seize function. .........................23
3.7 Radiator anti-freeze function. ..........................23
3.8 P.C.B. periodic self-check. ................................23
3.9 Automatic vent function. ..................................23
3.10 Yearly appliance check and maintenance. ......23
3.11 Casing removal. ..................................................24
3.12 Combustion settings. .........................................25
3.13 Technical data. ....................................................26
3.14 Short parts list ....................................................27
Benchmark checklist .........................................28
Service record .....................................................29
1 BOILER INSTALLATION
1.1 INTRODUCTION.
e Alpha InTec 50CS is a oor standing, high eciency, condensing, room-sealed combination boiler. e burner is lit electronically and the heat
output is controlled by a modulating fan and gas valve.
is is a combination boiler (for domestic use only) providing both central heating and domestic hot water at mains pressure.
e boiler is supplied with a pump, pressure relief valve, expansion vessel and pressure gauge fully assembled and tested. It is designed for use with a
fully pumped, sealed and pressurised central heating system.
e boiler must be installed indoors in a frost free environment.
IMPORTANT
is boiler meets the requirements for Building Regulations for unvented hot water storage systems and the Local Authority must be notied of the
intention to install. erefore the installation must be carried out by a person competent to install unvented hot water systems.
It is the law that all gas appliances are installed by a competent person, i.e. Gas Safe registered personnel, in accordance with the following
recommendations:-
Current Gas Safety (Installation and Use) Regulations
All current Building Regulations issued by the Department of the Environment, i.e. Approved Document L1.
Building Standards (Scotland) (Consolidation) Regulations issued by the Scottish Development Department
UK Water Regulations/Byelaws (Scotland)
Health & Safety Document No. 635 (e Electricity At Work Regulations 1989)
e installation should also be in accordance with the following British Standard Codes of Practice:-
BS 5440:1 Flues
BS 5546: Installation of hot water supplies for domestic purposes
BS 6700: Design, installation, testing and maintenance of services supplying water
BS 6798: Installation of gas red hot water boilers
BS 6891: Gas installation
BS 7593: Code of Practice for treatment of water in heating systems
BS 7671: Requirements for electrical installations, IEE Wiring Regulations
BS EN 12828 Heating systems in Buildings. Design for water based heating systems
BS EN 12831 Heating systems in Buildings. Method of calculation for design heat load
BS EN 14336 Heating systems in Buildings. Installation and commissioning of water based heating systems
Reference should be made to DEFRA document 'Guide to condensing boiler installation assessment procedures for dwellings'.
If installation is in a timber framed building, refer to the Institute of Gas Engineers document IGE/UP/7.
is appliance meets the requirements of IPX4D, i.e. degree of protection against moisture.
is appliance contains no asbestos and no substances have been used in the construction process that contravene the COSHH Regulations (Control
of Substances Hazardous to Health).
Failure to install this appliance correctly could lead to prosecution. It is in your own interest and that of safety to ensure that the law is complied with.
Manufacturer's instructions must NOT be taken in anyway as over-riding statutory obligations.
Notes: 1. Ensure that the Benchmark Checklist has been completed aer the boiler has been installed and commissioned.
2. It is the law that all boiler installations are registered by the installer through the Gas Safe Gas Work Notication Scheme.
3. e boiler must only be used with Alpha CD condensing ue components.
NOTE: e boiler can be supplied ready for use with Propane (LPG).
e LPG boiler is also designed for use with a fully pumped, sealed and pressurised heating system.
In addition to the regulations and requirements stated in these installation and servicing instructions, LPG boilers must be installed in accordance
with BS 5482:1 - e Installation of Propane Burning Appliances in Permanent Dwellings.
Installation pipes, cylinders and pressure regulators for LPG boilers should be tted in accordance with BS5482:1. Bulk tank installations must comply
with the requirements of the Home Oce code of practice for the storage of liqueed petroleum gas at xed installations.
LPG boilers must not be installed in a room or internal space below ground level, e.g. in a basement or cellar, except where at least one side is open to
ground level.
LPG supply pipes must be capable of delivering the required quantity of gas in addition to the demand from any other appliances in the house. e
complete installation must be tested for gas soundness against leaks.
LPG boilers have been tested and factory set for use with Propane (LPG), it should only be necessary to ensure the correct gas supply pressure of 37 mbar is
available.
INSTALLATIONUSERMAINTENANCE
3 Alpha Intec 50CS
1.2 DIMENSIONS
INSTALLATIONUSERMAINTENANCE
Flue elbow centreline
133
20
23
44
307
320
A
F
60 60
E
G
80
40 40
C
45 45 40
I
B
6
850
650
Height (mm) Width (mm) Depth (mm)
850 650 600
Connections
Gas Domestic hot water Central heating
A B C E F
3/4" 1/2" 1/2" 3/4" 3/4"
1.3 CONNECTIONS
Gas connection:
e boiler is designed to operate with Natural
gas (Cat I2H 2H - G20 - supplied at 20 mbar)
or Propane gas (Cat I3P 3P - G31 - supplied
at 37 mbar). Supply pipes must be the same
as or larger than the 3/4" boiler tting. Before
connecting the gas line, carefully clean inside all
the supply pipes to remove any residue that could
impair boiler performance. Also make sure the
gas corresponds to that for which the boiler is
prepared (see boiler data-plate).
e gas supply pipe must be suitably dimensioned
according to current regulations in order to
guarantee correct gas ow to the burner even
in conditions of maximum boiler output and
to guarantee appliance efficiency (technical
specications).
Storage tanks (LPG):
- New LPG storage tanks may contain residual
inert gases (nitrogen) that degrade the mixture
delivered to the appliance causing functioning
anomalies.
- Due to the composition of the LPG mixture,
layering of the mixture components may occur
during the period of storage in the tanks. is
can cause a variation in the heating power of
the mixture delivered to the appliance, with
subsequent change in its performance.
973
600
Hydraulic connection:
Important: in order not to void the warranty
before making the boiler connections, carefully
ush the heating system (pipes, radiators, etc.)
with de-scaling products to remove any deposits
that could compromise correct boiler operation.
For further detail see Section 1.12.
Mains cold water
DHW
Power supply cable
57
H
211
65
70
D
A - Gas
B - Domestic hot water outlet
C - Cold water inlet
D - Condensate outlet
E - Central heating return
F - Central heating ow
G - DHW temp/press relief valve
H - CH pressure relief valve
I - Secondary circuit (optional)
Safety valve
CH return
CH flow
Gas
814
Fig. 1-1
Fig. 1-2
4Alpha Intec 50CS
Condensate drain:
To drai n the condensate produced by the
appliance, it is necessary to connect to the
drainage system by means of acidic condensate
resistant pipes having a diameter of at least 22
mm. e system connecting the appliance to the
drainage system must be carried out in such a way
as to prevent freezing of the liquid contained in
it. Before appliance commissioning, ensure that
the condensate can be correctly removed. Also,
comply with national and local regulations on
discharging waste waters.
For further detail see Section 1.11.
Electrical connection:
e boiler has an IPX5D protection rating for the
entire appliance. Electrical safety of the appliance
is reached only when it is correctly connected
to an ecient earthing system as specied by
current safety standards.
e power supply cable must be connected to a
230V ±10% / 50Hz mains supply respecting L-N
polarity and earth connection
must also have a multi-pole circuit breaker.
, this network
1.4 REMOTE CONTROLS AND
PROGRAMMABLE ROOM
THERMOSTATS OPTIONAL
e boiler is suitable for use with programmable
room timer thermostats or remote controls,
which are available as optional kits.
Alpha programmable room thermostats are
connected with 2 wires only. Carefully read the
user and assembly instructions supplied with
the kit.
Installation on low temperature system:
e boiler can directly supply a low temperature
system by acting on parameter 'P66' (Service
Engineers Document - Programming the PCB)
and setting the ow temperature adjustment
range 'P66/A' and 'P66/B'. In this situation it is
good practice to insert a safety device in series
with the power supply and boiler. is device is
made up from a thermostat with a temperature
limit of 60°C. e thermostat must be positioned
on the system ow pipe at a distance of at least 2
metres from the boiler.
1.5 EXTERNAL TEMPERATURE SENSOR
OPTIONAL
e boiler is suitable for use with the external
sensor (Fig. 1-3), which is available as an optional
kit. The sensor can be connected directly to
the boiler electrical system and allows the
maximum ow temperature to be automatically
decrea sed whe n the exter nal temperature
increases, in order to adjust the heat supplied to
the system according to the change in external
temperature. e external sensor always operates
when connected, regardless of the presence or
type of room thermostat used and can work
in combination with Alpha programmable
thermostats. e correlation between system
ow temperature and external temperature is
determined by the parameters set in menu 'M5'
under 'P66' according to the curves represented
in the diagram (Fig. 1-4). e external sensor
must be connected to terminals 38 and 39 on
the boiler PCB, (Fig. 3-2).
INSTALLATIONUSERMAINTENANCE
45
58
31
Fig. 1-3 Fig. 1-4
e following controls for the InTec50CS are also available from Alpha:
Part No. 3.021395, CAR V2 ....................InTec50CS wired modulating thermostat
Part No. 3.021622, Crono 7 .....................InTec50CS wired digital thermostat
Part No. 3.021624, Crono 7RF ................InTec 50CS wireless digital termostat
Flow temperature depending on the external temperature and user
adjustments of the central heating temperature.
T
T Max
T Min
EXTERNAL SENSOR:
T = Central heating temperature
TE = External temperature.
TMAX - TMIN = Selected ow temp. range.
OFFSET
TE
TE MaxTE Min
5 Alpha Intec 50CS
openings of the
1.6 FIT THE FLUE FIGS. 5 AND 16
e following procedure applies to tting an
Alpha CD Easy-Flue to both rear or side exit
ue - horizontally only.
- e CD Easy-Flues are suitable for use in the
ue length ranges shown in the tables in Figs
1-5 and 1-6.
Note: Where the length is less than the
minimum or more than the maximum, refer
to Section 1.7.
INSTALLATIONUSERMAINTENANCE
Boiler
Rear Flue
(B + C)
Using a single
CD Easy-Flue
500 mm
1000 mm
B + C (mm)
Max
Min
355
130
800
590
Fig. 1-5 Rear ue
(B + C)
Using a singleCD
Easy-Flue
500 mm
1000 mm
Side Flue
Boiler
- Determine the overall length (L) of ue required, (see Fig. 1-7) as follows:-
Rear exit L = wall thickness (B) + distance between boiler and wall (C) + 230 mm
le exit L = wall thickness (B) + distance between boiler and wall (C) + 442 mm
Right exit L = wall thickness (B) + distance between boiler and wall (C) + 58 mm
B + C (mm)
Min
Max
-
143
378
742
Boiler
L
(B + C)
Side Flue
Right hand exit ueLe hand exit ue
Using a single
CD Easy-Flue
500 mm
1000 mm
B + C (mm)
Min
Max
302
527
762
972
Fig. 1-6 Side ue
Seal joint with tape
- Adjust the telescopic section of the ue to
the distance 'L', ensuring that the two labels
marked 'TOP' are aligned, then seal and secure
the joint between the ducts with the sealing
tape supplied.
Note: Always ensure that there is a minimum
overlap of 25 mm when fully extending the
telescopic section.
- Pass the ue assembly through the wall (from
inside or outside).
Fig. 1-7
Note: Internal tting - If there is no access to
make good the outside wall, locate the outside
(black) ue sealing collar onto the outer duct
of the ue immediately before the terminal
grille onto the location provided. Push the
ue assembly through the 130 mm ue hole,
so that the collar completely passes through
the wall. en pull the ue assembly back into
the correct position. Visually check that the
collar is sealing the outside wall and that it is
not restricting any of the openings of the ue
terminal. See Fig. 1-8.
130 mm
Fig. 1-8 - Fitting the ue from inside
Check collar is
sealing the wall
and it is not
restricting any
flue terminal
6Alpha Intec 50CS
- Position the smaller Easy-Flue 40 mm clamp
(with seal) supplied, over the bend. Fit the bend
to the boiler and rotate to the correct position.
Secure in position using the clamp. Ensure the
clamp is located centrally over both the bend
and boiler adaptor.
- Fit the inside (white) ue sealing collar over the
Easy-Flue. If it was not previously tted, t the
outside (black) ue sealing collar onto the ue
immediately before the terminal grille onto the
location provided.
Ensure the inner duct within
the terminal is at the top.
The inner duct must
Note:
be positioned to slope towards
the boiler
Terminal
Flue sealing collar
- Slide the larger Easy-Flue 45 mm clamp over
the outer duct and pull the flue assembly
towards the bend, locating the inner duct into
the seal joint on the bend. Ensure the labels
marked 'TOP' are positioned at the top before
securing the ue assembly to the bend with the
clamp (three screws) located centrally over the
joint.
Inner duct seal
120
20
65
CD Easy-Flue
210
Note: Check the ue terminal protrudes 120
mm out of the wall and the inner duct of the
terminal is positioned correctly (see Fig. 1-9).
- Make good the inside wall by pushing the
inside ue sealing collar upto the wall.
INSTALLATIONUSERMAINTENANCE
This dimension will be greater
if the boiler is not against the wall
End of outer duct
Inner duct
Easy-Flue 45 mm clamp
Elbow seal joint
90° bend
Easy-Flue 40 mm clamp
and seal
Side of boiler
Note: Ensure the outer flue duct is horizontal
1.7 REDUCING THE FLUE FIG. 110
When the ue length required is less than the
minimum stated in Section 1.6, paragraph 1,
refer to Fig. 1-10.
Discard the rst telescopic section (not the
section with the terminal) of the Easy-Flue
1000 mm or 500 mm and cut to the required
length.
Note: Ensure that all cuts are square and free
from burrs.
Once assembled with the components pushed
home, the ue is fully sealed.
Allow 20 mm
30 mm
307
This dimension will be greater
if the boiler is not against the wall
Fig. 1-9 - Rear ue
Do not cut past this point
Fig. 1-10
7 Alpha Intec 50CS
1.8 EXTENDING THE FLUE FIG. 111
40 mm clamp
Note: e ue assembly length must not
exceed the maximum length stated, including
the equivalent lengths of any extensions, bends
etc. used for plume management components.
InTec boilers must not exceed the maximum of
an equivalent horizontal ue length of 12 m.
- When the ue length required is more than the
maximum stated in Section 1.6, paragraph 1,
refer to the table below and Fig. 1-6.
INSTALLATIONUSERMAINTENANCE
Rear Flue length (B + C)
Up to maximum:-
11.885 m
Additional support brackets are required when extending the ue. ese are available from Alpha, Part No. 6.1000355.
Side Flue length (B + C)
Up to maximum:-
11.805 m
Comments
Alpha CD 750 mm ue extension (Part No. 6.2000750) or 1000 mm extension (Part No.
6.2001050) is required to extend the range of telescopic ue.
Refer to Section 1.8 for instructions on how to extend the ue.
Note: A 130 mm ue hole (127 mm core drill) may be required in the wall. is is when
the extended ue is passed through the wall.
- Use the template (supplied with the boiler) to
mark the required ue position, ensure the
slope towards the boiler is correct.
- Determine the overall ue length as described
in Section 1.6, paragraph 2 to determine the
number of Alpha CD 750 or 1000 mm ue
extensions required.
- Assemble the flue extensions together by
locating the inner duct into the seal joint
and secure each extension together with the
extension clamps supplied (three screws).
Ensure that the clamps are positioned centrally
over the joints.
Note: If it is required to cut an extension,
DO NOT cut the end of the inner duct that
incorporates the seal joint. Ensure the inner
duct end without the seal joint is cut so that it
is 20 mm longer than the outer duct.
Ensure that all cuts are square and free from
burrs.
Once assembled with the components pushed
home, the ue is fully sealed.
Ensure the inner duct within the terminal
is at the top.
The inner duct must be positioned
Note:
to slope towards the boiler
120
20
- Adjust the telescopic section of the Easy-Flue
to the required length and secure the Easy-Flue
with the sealing tape supplied. Fit the Easy-Flue
to the extensions by locating the inner duct into
the seal joint and secure with the clamp (three
screws), ensuring it is located centrally over the
joint.
- Mark the end of the ue assembly 'TOP' where
it is connected to the boiler, so that the 'TOP'
of the ue terminal is aligned with the 'TOP'
at the boiler end of the ue assembly.
- Pass the complete ue assembly through the
wall.
- Position the smaller Easy-Flue 40 mm clamp
(with seal) supplied, over the bend. Fit the bend
to the boiler and rotate to the correct position
and secure in position. Ensure the seal is
located centrally over both the bend and boiler
adaptor. If the inside sealing collar (white) is
being used to make good the inside wall, then
it will need to be tted before assembling the
ue.
Ensure outer flue duct of Easy-Flue is horizontal
CD Easy-Flue
Extension clamp
Inner seal joint
- Slide the larger Easy-Flue 45 mm clamp (two
screws) over the outer duct and pull the ue
assembly towards the bend, locating the inner
duct into the seal joint on the bend.
- Secure the ue assembly to the bend with the
clamp ensuring it is positioned centrally over
the joint, ensuring the 'TOP' marked on the
outer duct is positioned at the top.
Note: Check the ue terminal protrudes 120
mm out of the wall and that the inner duct
of the terminal is positioned correctly, i.e. the
inner duct within the terminal is at the top. See
Fig. 1-11 or 1.12.
- Make good the outside wall by fitting the
outside sealing collar (black) onto the location
provided immediately behind the ue terminal
grille. Make good the inside wall using the
inside sealing collar (white) if required.
Ensure the flue extension slopes
downwards towards the boiler by a
minimum of 25 - 30 mm per metre
Easy-Flue 45 mm clamp
Terminal
Flue sealing
collar
Inner seal joint
Flue length (L)
CD Flue extension
End of extension
8Alpha Intec 50CS
422
517
90° bend
Easy-Flue
and seal
Seal joint
Front of boiler
Fig. 1-11 - Le side ue
Ensure the flue extension slopes
lue sealing
downwards towards the boiler by a
minimum of 25 - 30 mm per metre
Easy-Flue 45 mm clamp
90° bend
Easy-Flue
40 mm clamp
and seal
Seal joint
Ensure outer flue duct of Easy-Flue is horizontal
Extension clamp
Inner seal joint
CD Flue extension
End of extension
38
Ensure the inner duct within the terminal
is at the top.
Note:
to slope towards the boiler
CD Easy-Flue
Inner seal joint
The inner duct must be positioned
120
20
INSTALLATIONUSERMAINTENANCE
Terminal
F
collar
133
Front of boiler
1.9. FIT PLUME MANAGEMENT
COMPONENTS OPTIONAL
e following procedures detail the options
for management of the exhaust ue gas/plume
emitted from the terminal.
- e terminal supplied with the Easy-Flue can
be altered to divert exhaust ue gas/plume at
an angle.
is can be achieved by simply turning the end
section of the terminal to the desired angle.
- e CD Easy-Flue can be converted to allow the
inner ue duct to be extended so as to position
the terminal in an area where the exhaust ue
gas/plume will not cause a nuisance. is can
be done before or aer installation of the ue,
providing there is access to the terminal from
outside.
a. Remove the screws (1 in Fig. 1-13) securing
the terminal and remove the terminal by
pulling it from the ue assembly. Remove the
screw (2 in Fig. 1-13) securing the terminal
end section and remove the end section from
the terminal.
Flue length (L)
b. Locate a 93° Plume Management bend
into the ue assembly and rotate it to the
direction required.
c. Connect to the 93° bend the required Plume
Management components as detailed and
refer to Fig. 1-14.
Notes:
- e wall support brackets must be used to
secure the Plume Management pipework
to the wall and prevent disconnection of
the 93° bend from the ue assembly or any
other component.
- Each joint must be secured with one of
the screws provided to prevent accidental
disconnection.
- Ensure there is always a slight slope
towards the ue assembly tted in the
wall and there is no part of the plume
management pipework where condensate/
rain will collect and cause a blockage or any
restriction.
Fig. 1-12 - Right side ue
d. Terminate the Plume Management pipework
by tting the terminal end section (push-t)
previously removed. Refer to Fig. 1-13.
e. The Plume Management components
available for extending the inner ue duct
are as follows:-
Plume Management 93° bend 60 mm dia.
(each 93° bend equivalent to 1.3 m flue
length)
Plume Management 45° bend 60 mm dia.
(each 45° bend equivalent to 0.9 m flue
length)
Plume Management 1000 mm extension 60
mm dia. (equivalent to 1 m ue length)
60 mm dia. wall bracket
1
1
2
Fig. 1-13
9 Alpha Intec 50CS
INSTALLATIONUSERMAINTENANCE
Terminal end section
from CD Easy-Flue
Min.
400 mm
C
Terminal end
section from
CD Easy-Flue
Notes:
1. Ensure each joint is secured
with the screw supplied.
2. Ensure there is always a
slight slope towards the CD
Easy-Flue so that there is no
part of the pipework where
condensate will collect.
C
Terminal end section
from CD Easy-Flue
PM length = C + (2 x 93° bend = 2.6 m) + (2 x 45° bends = 1.8 m)
Ensure there is a slope of approximately
Flue sealing collar
CD Easy-Flue
PM length = C + (1 x 93° bend = 1.3 m) + (2 x 45° bends = 1.8 m)
Note: e equivalent horizontal ue assembly length + the equivalent plume management length (PM length) must not exceed the
maximum ue length stated for the boiler, i.e. e boiler maximum equivalent ue length must not exceed 12 metres.
3° back towards the Easy-Flue
PM length = C + (4 x 93° bend = 5.2 m)
C
Fig. 1-14
10Alpha Intec 50CS
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