{"id":272285,"date":"2024-10-19T18:15:54","date_gmt":"2024-10-19T18:15:54","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-54491990\/"},"modified":"2024-10-25T14:34:23","modified_gmt":"2024-10-25T14:34:23","slug":"bs-54491990","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-54491990\/","title":{"rendered":"BS 5449:1990"},"content":{"rendered":"

General planning, design considerations, materials, appliances and components, installation and commissioning. Includes small bore and microbore systems, open systems and sealed systems.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nBRITISH STANDARD <\/td>\n<\/tr>\n
2<\/td>\nCommittees responsible for this British Standard <\/td>\n<\/tr>\n
3<\/td>\nContents <\/td>\n<\/tr>\n
7<\/td>\nSection 1. General
1 Scope
2 Definitions
2.1 heat emitters
2.2 boiler
2.3 central heating
2.4 whole house central heating
2.5 part house central heating
2.6 background central heating
2.7 combined system
2.8 immersion primary heater
2.9 smallbore heating system <\/td>\n<\/tr>\n
8<\/td>\n2.10 microbore heating system
2.11 open vented heating system
2.12 sealed heating system
2.13 designer
2.14 design heat requirement
2.15 ventilation heat loss
2.16 structural heat loss
2.17 calculated heat loss
2.18 pump overrun device
2.19 room-sealed appliance
2.20 open-flued appliance <\/td>\n<\/tr>\n
9<\/td>\n3 Exchange of information
3.1 Preliminary design information
3.2 Contractual specification and presentation of scheme <\/td>\n<\/tr>\n
11<\/td>\nSection 2. Materials, appliances and components
4 General
5 Boilers
5.1 General
5.2 Sealed systems <\/td>\n<\/tr>\n
12<\/td>\n6 Pipes and pipe fittings
7 Safety valves <\/td>\n<\/tr>\n
13<\/td>\nSection 3. Design considerations
8 General
8.1
8.2
9 Heating requirements
9.1 <\/td>\n<\/tr>\n
14<\/td>\nTable 1 – Temperatures and ventilation rates
Table 2 – Air change rates for rooms with open fires and flues up to 40 000 mm
9.2
10 Domestic hot water requirements <\/td>\n<\/tr>\n
15<\/td>\n11 Boilers
11.1
11.2
11.3
11.4
11.5
12 Chimney and flue
12.1 <\/td>\n<\/tr>\n
16<\/td>\n12.2
13 Velocity and pressure loss in circuits
13.1
13.2
14 Feed and expansion cistern (open vented systems only)
14.1
14.2
14.3
14.4
15 Feed and expansion pipe and open vent pipe for open systems
15.1 <\/td>\n<\/tr>\n
17<\/td>\n15.2
15.3 <\/td>\n<\/tr>\n
18<\/td>\nFigure 1 – Diagrammatic arrangement of feed and expansion cistern installation <\/td>\n<\/tr>\n
19<\/td>\nFigure 2 – Diagrammatic arrangement for feed and expansion and open vent pipes <\/td>\n<\/tr>\n
20<\/td>\n16 Sealed systems
16.1
16.2
16.3
Table 3 – Capacities of expansion vessels <\/td>\n<\/tr>\n
21<\/td>\n16.4
16.5
17 Venting
18 Heat emitters <\/td>\n<\/tr>\n
22<\/td>\n19 Valves
19.1
19.2
20 Thermal insulation
20.1
20.2 <\/td>\n<\/tr>\n
23<\/td>\nFigure 3 – Sealed system filling and make-up <\/td>\n<\/tr>\n
24<\/td>\n21 Domestic hot water storage
21.1
21.2
21.3
22 System control
22.1 General considerations <\/td>\n<\/tr>\n
25<\/td>\n22.2 Timing controls
22.3 Temperature control of heating system <\/td>\n<\/tr>\n
26<\/td>\n22.4 Temperature control of stored domestic hot water
23 Draining
24 Delivery, storage and metering of fuel
24.1 Solid fuel <\/td>\n<\/tr>\n
27<\/td>\nTable 4 – Solid fuel storage capacities
24.2 Gas
24.3 Liquefied petroleum gas
24.4 Fuel oil
Table 5 – Fuel oil storage capacities
24.5 Electricity
25 Air supply
25.1
25.2
25.3
25.4 <\/td>\n<\/tr>\n
28<\/td>\n25.5
Table 6 – Air openings sizes in mm
26 Corrosion inhibitor <\/td>\n<\/tr>\n
29<\/td>\nSection 4. Installation work on site
27 Boiler
27.1
27.2
28 Flueing and air supply
29 Condensate disposal
30 Circulation pipework
30.1 <\/td>\n<\/tr>\n
30<\/td>\nFigure 4 – Limitations on notching and drilling in structural joists
30.2
30.3 <\/td>\n<\/tr>\n
31<\/td>\n30.4
31 Pipe fixings and supports
31.1
31.2
31.3
Table 7 – Piping support intervals
31.4 <\/td>\n<\/tr>\n
32<\/td>\n32 Heat emitters
33 Circulation pump
34 Indirect cylinder
35 Electrical work
36 Gas pipework
37 Oil pipework <\/td>\n<\/tr>\n
33<\/td>\nSection 5. Commissioning
38 Filling
39 Boiler <\/td>\n<\/tr>\n
34<\/td>\n40 Balancing
41 Handing over <\/td>\n<\/tr>\n
35<\/td>\nAppendix A
Heat loss coefficients
A.1 General
A.2 Solid walls
Table 8
A.3 Timber framed walls
Table 9 <\/td>\n<\/tr>\n
36<\/td>\nA.4 Cavity walls
Table 10
A.5 Pitched roofs
Table 11 <\/td>\n<\/tr>\n
37<\/td>\nA.6 Windows
Table 12
A.7 Ground floors
Table 18
A.8 Party and partition walls <\/td>\n<\/tr>\n
38<\/td>\nA.9 Intermediate floors
Table 14
Table 15 <\/td>\n<\/tr>\n
39<\/td>\nAppendix B
Resistance to hot water flow
Table 16 – Pressure loss per metre run due to flow of hot water through copper tubes <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Specification for forced circulation hot water central heating systems for domestic premises<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2002<\/td>\n46<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":272292,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1273,2641],"product_tag":[],"class_list":{"0":"post-272285","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-91-140-10","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/272285","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/272292"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=272285"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=272285"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=272285"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}