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Concord CXA 40-120 (Natural gas)
CONTENTS
Air Supply. ........................................................................ 9
Boiler Assembly - exploded view. ................................. 10
Boiler Clearances. ........................................................... 6
Burner Assemblies - exploded views.
CXA 40-80. ................................................................. 23
CXA 90-120. ............................................................... 23
Casing Assembly. ........................................................... 13
Chimney System. .............................................................. 9
Commissioning & Testing. ............................................. 18
Electrical Connections. .................................................. 14
Electrical Supply. .............................................................. 9
Fault Finding. ................................................................... 29
Gas Safety Regulations .................................................... 3
Gas Supply. ........................................................................ 9
Hydraulic Resistance. ...................................................... 6
Initial Lighting. ................................................................. 18
Installation. ...................................................................... 10
Mandatory Requirements. ............................................... 8
Option Kits. ........................................................................ 5
Pump. ................................................................................ 7
Servicing. ........................................................................ 20
Short List of Parts. ......................................................... 31
Site Assembled Boilers. ................................................. 27
Static Head Requirements. .............................................. 7
System Connections. ..................................................... 12
Ventilation. ........................................................................ 9
Water Circulation. ............................................................ 5
Water Connections. ......................................................... 5
Water Treatment. ............................................................. 7
Wiring Diagrams. ............................................................ 15
Concord CXA -
Installation and Servicing
B.G. Certified - P.I. No. 87/AP/80
INTRODUCTION
CONSTRUCTION
BOILER BODY
The sectional boiler body is of cast iron and is supplied
assembled on a sheet steel combustion chamber with an integral
draught diverter. The boiler can be supplied in sectioned form to
special order for site assembly - refer to the section headed
'Instructions for Site Assembled Boilers'.
CASING
The casing is manufactured in stove enamelled sheet steel
and is easily assembled on site.
BURNERS
The 3 burners are of stainless steel construction.
Gas Safety (Installation and Use) Regulations, 1994,
amendments 1996 or rules in force.
It is the law that all gas appliances are installed and serviced by
a CORGI registered installer (identified by
the above regulations. Failure to install appliances correctly could
lead to prosecution. It is in your own interest, and that of safety, to
ensure that the law is complied with.
The Concord CXA 40-120 range of boilers has been tested and
certified by British Gas to prEN656 for use with Natural gas only.
Multiple boiler installations
The Concord CXA range is certificated for use in multiple
boiler installations, providing that the following conditions are
satisfied.
1. A downdraught thermostat kit MUST be fitted to ALL boilers
in the installation.
2. A maximum of 6 boilers may be used with a single flue
header.
3. For clearances see Frame 2.
A comprehensive guide to multiple installations of Concord
CXA boilers is available.
WARNING.
Failure to use a downdraught kit on every boiler in a multiple
boiler installation will negate the certification of the installation
and therefore contravene the essential requirements of the Gas
Appliance Directive.
Note. Concord CXA 40, CXA 50 and CXA 60 boilers are intended
for use as COMMERCIAL BOILERS and are NOT certified for use
in domestic applications. A domestic installation is defined as an
installation where the boiler takes its combustion air from a living
space or from a room directly or indirectly connected with the
living space. It is important, therefore, that no external control
devices - e.g. flue dampers, economisers etc., are directly
connected to this appliance unless covered by these Installation
and Servicing Instructions or otherwise recommended by
Caradon Plumbing Limited in writing. If in doubt, please enquire.
Any direct connection of a control device not approved by Caradon
Plumbing Limited could invalidate the British Gas Certification,
the normal appliance warranty and could also infringe the Gas
Safety Regulations. Table 1, Table 2 and the descriptive notes
which follow contain all the essential data likely to be required by
the installer.
Destination Countries: GB and IE
) in accordance with
3
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