BS 6880-2:1988

Foreword
Committees responsible
Section one. General
1.1 Scope
1.2 Definitions
Section two. Principal equipment groups and standards
2.1 Principal equipment groups
2.2 Equipment standards
Section three. Utilization equipment
3.1 Natural convectors: types
3.2 Natural convectors: selection factors
3.3 Forced convectors: types
3.4 Forced convectors: selection factors
3.5 Heated ceilings and walls: types
3.6 Heated ceilings and walls: selection factors
3.7 Floor heating systems: types
3.8 Floor heating systems: selection factors
Section four. Distribution equipment
4.1 General
4.2 Circulating pumps: types
4.3 Circulating pumps: selection factors
4.4 Pressurization equipment: types
4.5 Pressurization equipment: selection factors
Section five. Energy conversion equipment
5.1 Boilers and combustion equipment: types
5.2 Boilers and combustion equipment: selection
      factors
5.3 Boiler and combustion ancillaries: types
5.4 Boiler and combustion ancillaries: selection
      factors
5.5 Heat exchangers and thermal storage vessels: types
5.6 Heat exchangers: selection factors
5.7 Direct electric energy conversion equipment
5.8 Heat pumps: types
5.9 Heat pumps: selection factors
Section six. Automatic controls, instrumentation and
monitoring
6.1 Control loops and sensing elements: types
6.2 Controllers: types
6.3 Controlled devices: types
6.4 Centralized control and monitoring: types
6.5 Controls: selection factors
Appendix
A. Bibliography
Tables
1. Maximum tolerable air velocities
2. Maximum floor surface temperatures
3. Pressure and temperature classes for circulating
     pumps complying with BS 1394: Part 1
4. Density of water
5. Recommended minimum boiler operating efficiencies
     (50% to 100%) full load
6. Maximum working pressures and temperatures for
     calorifiers complying with BS 853 (grade A)
7. Recommendations for control valve authority
8. Recommended control valve characteristics
Figures
1. Common radiator connections
2. Typical continuous natural convector types
     (section at wall)
3. Typical forced convector types
4. Typical arrangement of vertical and horizontal
     industrial unit heaters showing key dimensions
5. Principal elements of floor heating system
6. Typical circulating pump types
7. Pump characteristics and selection
8. Principal elements of feed and expansion systems
9. Typical arrangement of horizontal (above ground)
     oil storage tanks
10. Typical hot-oil ring main arrangement
11. Principal tube heat exchanger (calorifier) types
12. Plate type heat exchanger
13. Principal elements of heat pump system
14. Typical expansion valve arrangements
15. Basic heat pump performance concepts
16. Form of heat output and power input data for
     varying operating conditions
17. Simple on/off control loop
18. Simple modulating control loop
19. Typical compensator schedule
20. Typical control valves
21. Typical two-port control valve application
22. Typical three-port control valve applications
23. Typical control valve characteristics

The types of low temperature hot water heating equipment which are in common use and the selection of such equipment when designing open vented or sealed systems.

This Part of BS 6880 gives recommendations regarding the types of low temperature hot water (see 1.2.1) heating equipment which are in common use and the selection of such equipment when designing low temperature hot water 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 page 82. References in the text to other publications are identified in the text by numbers in square brackets, and are listed in Appendix A.