Page 691 - The City and Guilds Textbook: Plumbing Book 1 for the Level 3 Apprenticeship (9189), Level 2 Technical Certificate (8202) and Level 2 Diploma (6035)
P. 691
Index
water 175 rawlbolts 131 existing bathroom refurbishment
pressure reducing valves (PRVs) 396 rawlplugs 132–3 604–5
pressure regulator 53 reciprocating saw 87 health hazards 614–15
pressure relief valves 400, 477, 503 recovery position 41–2 installation 594–605
pressure-compensating mixing red band thin wall copper tube 328 layout specifications 573–4
valves 319–20 reducers 103 maintenance 615–17
primary ventilated stack system reducing tees 103–4 primary ventilated stack system
550–4 refrigerants 161–2 550–4
principle contractors 11, 14 relative density 150 secondary ventilated stack
principle designer 11, 13–14 renewable energy hot water systems system 555
private water supplies, cold water 357 sub-stack system 556
systems 270–4 Reporting of Diseases and Dangerous testing 606–9
Private Water Supply Regulations Occurrences Regulations ventilated branch discharge
2016 255 (RIDDOR) 1995 6 system 554–5, 557–8
programmers, central heating residual current breakers with waste pipework 551–9, 575–83,
systems 484–5 overload protection 597
progress chart 224 (RCBOs) 651 scaffolding 66–71
prohibition notice 16 residual current device (RCD) 45, scaling reduction 321
prohibition safety sign 19 650 screw down stop valve 256–7
propane (C3H8) 51, 56, 624 resistance, electrical 184–6 screw machine 180
proprietary fittings 117 respiratory protective equipment screwdrivers 77–8
prosecution 16 (RPE) 29–30 screws 130–1
protective equipment see personal reversed return system 453–4 sealants 21
protective equipment (PPE) rewireable fuses 650 sealed pressurised central heating
Provision and Use of Work rippling 84, 94 systems 449–51, 505,
Equipment Regulations risk assessments 17–18, 222, 510
(PUWER) 2009 4 227–33 second fix 134, 224
public, protecting 18–19 risk calculation formula 230–3 secondary circulation 387–92, 424
pulleys 179–80 river water 241 secondary ventilated stack system
pumped distribution 253 room heaters 455 555
pumps, shower 320 rosin 23 sedimentation 249
pure metals 151 round bright wire nails 130 self-cleaning flux 99
push-fit fittings 100–1, 103, 110, round head screw 131 self-drill plasterboard fixings 132
112–15, 117 rubber nut fixings 132 self-siphonage 584
quantity surveyor 200 rusting 155–6, 159 sensible heat 168
‘quick recovery’ cylinders 370 sacrificial anodes 159 septic tanks 592
quotations 208 safe condition sign 20 series circuits 190–2
radiation heat transfer 171 safety helmets 27–8 shear strength 154
radiator spanner 86 safety signs 19 showers 407, 572–3
radiators 171, 467–72 Safety Signs and Signals Regulations boosting pumps 414–15
dressing 470 1996 8 group 409
hanging 132–3, 467–9 sanitary systems mixer valves 318–20, 414–19
replacing 510–11 appliances 559–78, 600–1 pumps 320
rainfall 526–7 below-ground drainage 588–94 SI system 147–9, 154, 164, 166,
rainwater cycle 238–40 blockages 616–17 173
rainwater harvesting 247–9, 290, certification 609–11 base units 148
617–19 commissioning 606–9 conversion tables 148–9
rainwater systems 520–46 decommissioning 612–14 derived units 148
rasps 85 dressing appliances 600–1 signage
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