repairing of building services engineering systems rak-43.3313 repair methods of structures,...
TRANSCRIPT
Repairing of Building Services Engineering Systems
Rak-43.3313 Repair Methods of Structures, exercise (4 cr)
Esko Sistonen
Some basics...Demolition work from the top downwards; HVAC repair vice versaVentilation: from negative pressure to overpressure Cleanliness of bag filter and heat exchanger: supply, exhaust, outside, and waste air duct Technical systems: ground loop heat pump systems,..
Some basics...Planning before repair action
Header
Sound absorber
Cold (blue) and warm (red) water supply
Sewer pipe
Pipes (white) from boiler and groundloop heat pump Floor heating pipes
Technical room
Water leak of wall sump Re-insulated water pipes
Dirty exhaust outlet
Water leak of storm water drainage from flat roof
Water shut off valves -> asbestos, mould
District heating system
Water leak of cast iron drain pipe Heat distribution room
Insulation groove in suspended ceiling
Inspection panel of waste sump
Minor water leak of old drain pipe
Water leak of hot water heating system
HVAC Repair Works• duct work• machinery installations• insulation work• terminal installation• control and monitoring work• non-sewers• floor drains• the heat distribution room• pipe installation• heating coil installation• water and sewer fitments
Installation of lining hose into air shaft of natural ventilation
From natural ventilation to exhaust ventilation
-Bathrooms made of metal plates-Repair of plastic drain pipes
Alternative water and sewer pipe repair methods*renewal of the whole piping system-requires the demolition work of structures (structures of channels)-takes-6mths – interference for users (water breaks, toilets, showers, common areas or containers)-dust, noise-the end product is known: the pipes are new*pipe coating-tube in tubecoating with epoxy-fast – a bit interference (takes up only 2 days)-no noise-durability of app. 20 years of experience in Western Europe, for a longer time period-Insurance companies does not necessarily give an age reduction-the coating is also possible for a warm and cold water pipes
Several internet links and some key wordshttp://www.rehva.eu/
http://www.sulvi.fi/wp-content/uploads/2011/12/Ventilation-in-nZEB_Kurnitski-1.pdf
http://www.sisailmayhdistys.fi/portal/fisiaq_in_english/
http://www.epa.gov/iaq/schooldesign/hvac.html
http://bse.sagepub.com/
http://en.wikipedia.org/wiki/Building_services_engineering
*Condition survey manuals (at least in Finnish)
*HVAC (Heating, Ventilation, and Air Conditioning)
*Building Services Technology (in Finland)
Several standards…
SFS-EN ISO 11295 (October 2010). Classification and information on design of plastics piping systems used for renovation (ISO 11295:2010). SFS-EN ISO 11296 (2011). Plastics piping systems for renovation of underground nonpressure drainage and sewerage networks - Parts 1-4. SFS-EN ISO 11298-1 (2011). Plastics piping systems for renovation of underground water supply networks - Parts 1-3. SFS-EN 12007-4 (Mars 2013). Gas infrastructure - Pipelines for maximum operating pressure up to and including 16 bar - Part 4: Specific functional requirements for renovation. SFS-EN 13380 (December 2001). General requirements for components used for renovation and repair of drain and sewer systems outside buildings.
Several standards…
SFS-EN 13566 (2003). Plastics piping systems for renovation of underground non-pressure drainage and sewerageNetworks - Parts 1-7.SFS-EN 15885 (January 2011). Classification and characteristics of techniques for renovation and repair of drains and sewers.