PREN 806-5 : DRAFT 2009
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
SPECIFICATION FOR INSTALLATIONS INSIDE BUILDINGS CONVEYING WATER FOR HUMAN CONSUMPTION - PART 5: OPERATION AND MAINTENANCE
02-01-2012
01-12-2013
1 Scope
2 Normative references
3 Terms and definitions
4 General
5 Documentation
6 Operation
7 Interruptions to operation and disconnection
8 Resumption of supply
9 Damage and faults
9.1 Change in water quality
9.2 Insufficient water supply
9.3 Flow noise
10 Alterations, extensions and refurbishment
11 Accessibility of fittings
12 Maintenance
13 Additional requirements for vented systems
13.1 Cisterns
13.2 Vessels
14 Inspection and maintenance
Annex A (informative) - Recommended frequencies for
inspection and maintenance of components for
drinking water installations
Annex B (informative) - Inspection and maintenance procedures
B.1 Air gaps (protection device family A)
B.2 Pipe interrupters (protection unit family D type C)
B.3 Backflow preventer with controllable reduced
pressure zone (protection unit BA)
B.4 Backflow preventer with different non controllable
pressure zones (protection unit CA)
B.5 Controllable antipollution check valves (protection
units EA and EC)
B.6 Non-controllable antipollution check valves (protection
units EB and ED)
B.7 Inline anti vacuum valve (protection units DA)
B.8 Pipe interrupter with atmospheric vent and moving
elements (protection unit DB)
B.9 Hose union backflow preventer (protection unit HA)
B.10 Hose union anti-vacuum valve (protection unit type HB)
B.11 Automatic diverter (protection unit type HC)
B.12 Hose union anti vacuum valve combined with check
valve (protection unit family H type D)
B.13 Pressurised air inlet valve (protection unit family L
type A)
B.14 Pressurised air inlet valve combined with a check
valve located downstream (protection unit family L
type B)
B.15 Hydraulic safety groups and expansion groups
B.16 Pressure safety valves, expansion valves and
combined temperature and pressure relief valves
B.17 Inline hot water supply tempering valves
B.18 Pressure reducing valve
B.19 Pressure booster pump
B.20 Water heaters
B.21 Fire fighting installations
B.22 Pipework
B.23 Water meters
Annex C (normative) - Specific inspection and maintenance
procedures for water conditioning devices
Bibliography
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