Table of Contents
Advertisement
3
Information on installation and operation
Observe all standards and guidelines applicable to the
installation and operation of this system in your country.
The details on the data plate are definitive and must be
observed.
Installer:
• An installer is a competent person who has extensive, specialist,
theoretical and practical knowledge, as well as experience in the
specialist area and is familiar with applicable standards.
Contractor:
• A contractor is an organisational unit of the industrial sector with
specially trained personnel.
3.1
Standards, regulations and directives
Observe all technical guidelines, country-specific regulations and
standards applicable to installation and operation. These include the
following:
• Local Building Regulations concerning boiler room installations.
• Local Building Regulations regarding ventilation, air supply and
extraction equipment as well as connection to a flue gas system.
• Requirements for the electrical connection to the power supply
(such as codes of practice and EN standards).
• The technical rules of the gas supplier regarding the connection of a
gas appliance to the local mains gas supply.
• Regulations and standards concerning the safety equipment level
of water-filled heating systems
The level of safety equipment must be at least compliant with EN
12828. Also observe country-specific regulations if these specify
further requirements.
3.2
Notes on low water level limiter (LWI)
▶ For boilers < 300 kW, install a low water level limiter.
For installation and operation, refer to the technical documents
provided by the manufacturer.
▶ For boilers < 300 kW, a minimum pressure limiter can
be installed instead of a low water indicator in
accordance with EN 12828.
▶ If the LWI connection provided is not used for the installation of a
SYR 932.1 low water indicator (accessory), seal the connection off
with a plug ( chapter 5.7, page 21).
3.3
Tightness test
▶ A leak test has to be carried out in accordance with local regulations.
The test pressure depends on the actual pressure in the heating
system and should be 1.3 times the prevailing pressure or at least
1 bar.
3.4
Duty to obtain a permit and provide notification
• The local gas supplier might need to be notified of and approve the gas
boiler installation.
• Please note that regional approvals may be required for the flue
system and condensate connection to the public sewage system.
• Prior to commencing installation, inform the relevant bodies and the
water board.
3.5
Burner selection and settings
The sizing and settings of the burner have a significant influence on the
service life of the heating system. Every load cycle (burner on/off)
Logano plus SB325 – 6 720 806 328 (2013/07)
Information on installation and operation
causes thermal stresses (loads on the boiler shell). The number of
burner starts must therefore not exceed 15,000 per year.
The following recommendations and settings are designed to meet this
criterion (see also information on setting the control unit and the
hydraulic connection to the heating system). If you still cannot meet
this criterion, please contact the sales or service department address
can be found on the last page).
The number of burner starts can be checked in the MEC
( chapter 3.12, page 12), on the third-party control
unit or alternatively on the burner control unit.
• Set the burner output as low as possible. Set the burner to the
rated heat input QN specified on the data plate as a maximum.
Never overload the boiler!
• Take fluctuating net calorific values of the gas into account;
check the maximum value with the gas supplier.
• Only use burners that are suitable for the specified fuels.
Observe the burner manufacturer's instructions.
• Burners must only be adjusted by heating engineers!
3.6
Installation requirements
The installation room must meet the following conditions:
• In the boiler installation room, an ambient temperature of between
0 °C and 35 °C must be ensured.
• The installation room must be equipped with the required combustion
air vents.
• An adequate supply of fresh air must be ensured.
Take into account additional consumers of ventilation air
(e.g. compressors) when sizing.
3.7
Ventilation requirements
Ventilation for combustion and cooling should be provided in the boiler
house in accordance with BS 6644 and IGE/UP/10. The tables below
may be used for guidance.
3.7.1 Open flue boilers
Opening free area sizes given in cm² per kW net.
% Load in Summer
50
75
100
Table 8
3.7.2 Room sealed boilers
Opening free area sizes given in cm² per kW net.
% Load in Summer
50
75
100
Table 9
▶ Never restrict or block ventilation openings. Keep the ventilation
openings clear at all times.
▶ Never install system components that could be damaged by frost near
the combustion air vents. If necessary, install a device to preheat the
ventilation air (e.g. a heater bank in the combustion air vent).
▶ Never store flammable materials or liquids in the immediate vicinity of
the heat source.
Low level
High level
4
2
5
3
6
4
Low level
High level
2
2
5
5
6
6
3
11
Advertisement
Table of Contents
