General; Introduction; Optional Extra Kits; Safety - Keston HEAT 2 45 Installation & Servicing

1.

GENERAL

1.1 INTRODUCTION

The boilers are fully automatically controlled, wall mounted,
fanned, super efficient condensing appliances.
The condensing boilers can be installed either on the wall or into
a prefabricated floor mounted frame.
The boilers are suitable for use with a room sealed flue or open
flue application.
Through a sophisticated control system combined with premix
burner arrangement the boilers are capable of high seasonal
efficiencies of >96% and low emissions.
These boilers are fitted with an integral flue non-return valve.
These boilers are certified to meet the requirements of the EC
Gas Appliance Directive, Boiler Efficiency Directive, EMC and
Low Voltage Directive.
Note. These boilers cannot be used on systems that include
gravity circulation.
The boiler are suitable for connection to fully pumped, open
vented or sealed water systems. Adequate arrangements for
completely draining the system by provision of drain cocks MUST
be provided in the installation pipework.

1.2 OPTIONAL EXTRA KITS

SYSTEM
• Frame and Header Kits & accessories
CONTROLS
• Outside temperature sensor
• DHW tank sensor/Flow sensor/Header sensor. Pocket version
• DHW tank sensor/Flow sensor/Header sensor. Strap-on
version
• Room temperature sensor
• OpenTherm room control
• Safety interlock kit
Cascade, first boiler
•
• Cascade, subsequent boiler
• Extension module
• Modulating sequencer kit
• Sequencer, OpenTherm room control
6 relay zone expansion kit
•
Sequencer and zone expansion pocket sensor, DHW or flow
•
temperature
• RDG, remote diagnostic gateway
• OpenTherm to Modbus gateway
• OpenTherm to BACnet gateway
• OpenTherm to LONworks gateway
• OpenTherm to KNX gateway
8
SECTION 1 - GENERAL

1.3 SAFETY

Current Gas Safety (Installation and Use) Regulations
or rules in force
The appliance is suitable only for installation in GB and IE and
should be installed in accordance with the rules in force.
In GB, the installation must be carried out by a suitably qualified Gas
Safe registered engineer or in IE by a competent person. It must be
carried out in accordance with the relevant requirements of the:
Gas Safety (Installation and 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.T. 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" or I.S. 820 "Non-Domestic Gas Installations" as
appropriate, the current Building Regulations and reference should
be made to the current ETCI rules for electrical installation.
The boilers have been tested and certified to;
BSEN 15502-1, BSEN 15502-2, BSEN 15502-2-1, BSEN 60335-1,
BSEN 60335-1, BSEN 60335-2-102, BSEN 55014-1 and BSEN
55014-2 for use with Natural Gas & Propane.
Detailed recommendations are contained in the following Codes
of Practice:
BSEN 60529
BS. 6891
BS. 5440
BS. 6798
BS. 6880
BSEN.12828:2012 Heating Systems in buildings: Design for water
BSEN.12831:2017 Heating Systems in buildings: Method for
BSEN.13831
BSEN.14336:2004 Heating Systems in buildings: Installation and
IGEM/UP/1
IGEM/UP/2
IGEM/UP/10
IPX4D using test method: Figure 4 - Test
device to verify protection against spraying and
splashing water; second characteristic numerals
3 and 4 (oscillating tube).
Installation of low pressure gas pipework of up to
28mm (R1) in domestic premises (2nd family gas).
Inst. and maintenance of flues and ventilation for
gas appliances of rated input not exceeding 70kW
net (1st, 2nd and 3rd family gases).
Part 1 Specification for installation of flues.
Part 2 Specification for installation and maintenance of
ventilation for gas appliances.
Installation and maintenance of gas fired hot water
boilers of rated input not exceeding 70kW net.
Low temperature hot water heating systems of
output greater than 45kW.
Part 1 Fundamental and design considerations.
Part 2 Selection of equipment.
Part 3 Installation, commissioning and maintenance.
based systems.
calculation of the design heat load.
Specification for: Expansion vessels using an
internal diaphragm, for sealed hot water heating
systems.
commissioning of water based heating systems.
Soundness testing and purging of industrial and
commercial gas installation.
Gas installation pipework, boosters and
compressors on industrial and commercial
premises.
Installation of gas appliances in industrial and
commercial premises.
Installation & Servicing