ebooks.narotama.ac.id/files/Building Services Engineering (5th Edition)/Chapter 6 Hot- And Cold-Water Supplies.pdf
drop 188; primary and secondary circulation 186; rainfall 179; reverse .... Mains
water is used in two ways: direct from the main and as low-pressure .... circulate
hot water when the taps are shut and it does not appreciably assist draw-off rates
account for 14 - 25% of the energy end-use in. Households ... Domestic hot water
systems can be divided into centralised and localised. ... supplying a system of
pipework to the various draw-off points. ... •No need for secondary circulation or
no problem .... tap where a long draw off is more common and an initial cold flow
Jun 27, 2008 ... showers, taps, toilets, urinals and is optional for flow controllers. WELS labelling
... Hot water circulators are circulation pumps designed for use in hot water
circulation ... reduce or may even eliminate draw off, defined as the water allowed
to drain away whilst ..... It must also meet the secondary criteria of '...
controls are supplied pre-wired. a heating and domestic hot water ..... Should a
balanced pressure cold water draw off supply be required for the cold water ...
Small bore pipe can also be used to suit some taps, but runs ... If a secondary
circulation system is required it is recommended that it be connected to the
Appendix 2.4 Example of sentinel points in a simple hot water ... systems that are
located in the workplace and use water; or work on water service systems .....
systems (HWS) typically operate without secondary hot water recirculation in ......
should be carried out at sentinel draw-off points, selected to represent the overall.
Whether or not the trade off in additional hot water pipe heat loss is worth the ....
that it encourages more hot water use (I tend to use the cold tap for things .... off,
you still have only the usual draw off time for the hot water to make its way
through. .... "Pumped secondary circulation can solve the issue of water ...
Panel for Hot Water Supply System in Buildings, BDC 24 : P6 .... may be used to
supply one or two points of draw off depending on type of use of hot water. ..... the
pipe from the tap to the hot water tank or the secondary circulation pipe shall not
The services included in this book are cold and hot water supplies, heating, ....
valve 8 Taps Used for Water The pillar tap is used to supply water to basins,
baths, .... Drinking water is available at every draw-off point and maintenance
valves ...... 54 Secondary Circulation To prevent user inconvenience waiting for
the cold .....
Open vented cylinders are low pressure residential hot water storage ... the water
level in the cold water storage cistern/tank during multiple draw offs. ... to be run
off a section of the hot water service pipe from the hot tap/faucet before ... You
can overcome this by having a 'secondary circulation' fitted to the hot water ...
Dec 9, 2014 ... Hot Water Supply-Power Point Slides. ... owners Blue ABS pipe carries cool
water Copper pipe carries hot water to draw off ... used to determine the usage of
circulation pumps Hot water from Schematic Diagram of .... to heat up water
Closed circulation can prevent clogging Secondary circulation ...