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BS 6880-1:1988

Current
Current

The latest, up-to-date edition.

Code of practice for low temperature hot water heating systems of output greater than 45 kW Fundamental and design considerations
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

02-29-1988

Foreword
Committees responsible
Section one. General
1.1 Scope
1.2 Definitions
Section two. Fundamental considerations
2.1 General
2.2 Comfort factors
2.3 Application factors
2.4 Statutory, structural and safety factors
2.5 Energy conservation and energy management
2.6 Quality and reliability
Section three. Design considerations
3.1 Types of systems
3.2 Basis of design
3.3 Energy conversion subsystem design
3.4 Distribution subsystem design
3.5 Corrosion control and water treatment
3.6 Thermal insulation
3.7 Plant room ventilation
3.8 Automatic controls
3.9 Electrical requirements
3.10 Noise and vibration
3.11 General layout and operational facilities
Appendix
A Bibliography
Tables
1 Recommended design values for resultant
      temperature, tc (heating season)
2 Levels of relative humidity, for an internal
      temperature of 21 deg C, at which condensation
      will occur at various outside temperatures
3 Air temperatures for educational accommodation
4 Recommended resultant temperatures for industrial
      work
5 Recommended temperatures for storage spaces
6 Recommended minimum oil storage and handling
      temperatures for classes E, F and G fuel oils
7 Typical ranges of excess air
8 Thermal expansion characteristics of piping
      materials
Figures
1 Typical 24 h load profile and temperature decay
      curve (based on 9 am to 5 pm occupancy)
2 Principal flue types
3 Simplified representation of principal system
      temperature relationships
4 Principal circuit arrangements
5 Typical air vent arrangements
6 Pump and feed location
7 Vent arrangement for multiple boilers
8 Typical multiple boiler control arrangements
9 HWS control
10 Location of sensors in pipes and ducts

Requirements which need to be taken into account in the design of open-vented or sealed systems.

This Part of BS 6880 gives recommendations regarding the fundamental considerations and the design considerations which need to be taken into account in the design of low temperature hot water (see 1.2.1) heating systems of output greater than 45 kW, open vented or sealed. It is primarily intended for use by building owners, building managers, installers and associated professionals. It is not intended to serve as a detailed design guide (see foreword).

The recommendations recognize the need to optimize the use of energy, reduce hazards and minimize effects detrimental to the environment.

Solar heating is outside the scope of this code.

NOTE The titles of the British Standards publications referred to in this standard are listed on the inside back cover. References in the text to other publications are identified in the text by numbers in square brackets, and are listed in Appendix A.

Committee
RHE/2
DevelopmentNote
Supersedes 85/70687 DC and BS CP341.300-307(1956) (09/2005) Reviewed and confirmed by BSI, December 2012. (11/2012)
DocumentType
Standard
Pages
88
PublisherName
British Standards Institution
Status
Current
Supersedes

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BS 7350:1990 Specification for double regulating globe valves and flow measurement devices for heating and chilled water systems
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BS 6644:2011 Specification for the installation and maintenance of gas-fired hot water boilers of rated inputs between 70 kW (net) and 1.8 MW (net) (2nd and 3rd family gases)
BS 6880-2:1988 Code of practice for low temperature hot water heating systems of output greater than 45 kW Selection of equipment
BS 6880-3:1988 Code of practice for low temperature hot water heating systems of output greater than 45 kW Installation, commissioning and maintenance
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EN 12828:2012+A1:2014 Heating systems in buildings - Design for water-based heating systems
BS EN 12828 : 2012 HEATING SYSTEMS IN BUILDINGS - DESIGN FOR WATER-BASED HEATING SYSTEMS

BS CP413(1973) : AMD 3345 CODE OF PRACTICE FOR DUCTS FOR BUILDING SERVICES
BS 526:1961 Definitions of the calorific value of fuels
BS 5986:1980 Specification for electrical safety and performance of gas fired space heating appliances with inputs 60 kW to 2 MW
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BS 4814:1976 Specification for expansion vessels using an internal diaphragm, for sealed hot water heating systems
BS 4508-3:1977 Thermally insulated underground pipelines General requirements for cased systems without air gap
BS 749:1969 Specification for underfeed stokers
BS 5854:1980 Code of practice for flues and flue structures in buildings
BS 5440-2:1976 Installation of flues and ventilation for gas appliances of rated input not exceeding 60 kW (1st, 2nd and 3rd family gases). Air supply
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BS 4999-20:1972 Specification for general requirements for rotating electrical machines Classification of types of enclosure
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BS 4086:1966 Recommendations for maximum surface temperatures of heated domestic equipment
BS 4508-4:1977 Thermally insulated underground pipelines Specific testing and inspection requirements for cased systems without air gap
BS 6880-2:1988 Code of practice for low temperature hot water heating systems of output greater than 45 kW Selection of equipment
BS 5925:1980 Code of practice for design of buildings: ventilation principles and designing for natural ventilation
BS 5440-1:1978 Installation of flues and ventilation for gas appliances of rated input not exceeding 60 kW (1st, 2nd and 3rd family gases). Flues
BS 5978-2:1983 Safety and performance of gas-fired hot water boilers (60 kW to 2 MW input). Specification for additional requirements for boilers with atmospheric burners
BS CP3000(1955) : 1955 CODE OF PRACTICE ON THE INSTALLATION AND MAINTENANCE OF UNDERFEED STOKERS
BS 6700:1987 Specification for design, installation, testing and maintenance of services supplying water for domestic use within buildings and their curtilages
BS 4434-2:1976 Specification. Requirements for refrigeration safety. Particular requirements for small refrigerating systems for use in household appliances
BS 6380:1983 Guide to low temperature properties and cold weather use of diesel fuels and gas oils (classes A1, A2 and D of BS 2869)
BS 5304:1988 Code of practice for safety of machinery
BS CP3009(1970) : AMD 3340 THERMALLY INSULATED UNDERGROUND PIPING SYSTEMS
BS 5885(1980) : AMD 5019 INDUSTRIAL GAS BURNERS, OF INPUT RATING 60 KW AND ABOVE
BS 1523(1954) : LATEST
BS 3323:1978 Glossary of coal terms
BS 5500:1988 Specification for unfired fusion welded pressure vessels
BS 5422:1977 Specification for the use of thermal insulating materials
BS 4941-3:1977 Specification for motor starters for voltages up to and including 1000 V a.c. and 1200 V d.c. Rheostatic rotor starters
BS 5410-2:1978 Code of practice for oil firing Installations of 45 kW and above output capacity for space heating, hot water and steam supply services
BS 5970:1981 Code of practice for thermal insulation of pipework and equipment (in the temperature range -100°C to +870°C)
BS 5720:1979 Code of practice for mechanical ventilation and air conditioning in buildings
BS 3533:1981 Glossary of thermal insulation terms
BS 4941-4:1977 Specification for motor starters for voltages up to and including 1000 V a.c. and 1200 V d.c. Reduced voltage a.c. starters, two-step auto-transformer starters
BS 2048-1:1961 Specification for dimensions of fractional horse-power motors Dimensions of motors for general use
BS 4941-2:1977 Specification for motor starters for voltages up to and including 1000 V a.c. and 1200 V d.c. Reduced voltage a.c. starters, star delta starters
BS 6129-1:1981 Code of practice for the selection and application of bellows expansion joints for use in pressure systems. Metallic bellows expansion joints
BS 5449-1:1977 Code of practice for central heating for domestic premises. Forced circulation hot water systems
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BS 5233:1986 Glossary of terms used in metrology (incorporating BS 2643)
BS 2869:1983 Specification for fuel oils for oil engines and burners for non-marine use
BS 6880-3:1988 Code of practice for low temperature hot water heating systems of output greater than 45 kW Installation, commissioning and maintenance
BS 4508-2(1973) : LATEST ASBESTOS CEMENT CASED SYSTEM WITH AIR GAP
BS 5643:1984 Glossary of refrigeration, heating, ventilating and air-conditioning terms
BS 4941-1:1979 Specification for motor starters for voltages up to and including 1000 V a.c. and 1200 V d.c. Direct-on-line (full voltage) a.c. starters
BS 4999-101:1987 General requirements for rotating electrical machines Specification for rating and performance

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