Specification 36. Heating, hot and cold water, steam and ...

1 Specification 036 heating , hot and cold water , steamand gas installations for buildingsThis Specification supersedes the former PSA StandardSpecification (M & E) No. 3 October 1997 INDUSTRIAL PROCESSES GROUPDEFENCE ESTATE ORGANISATIONM inistry of DefenceLondon: The Stationery OfficeCrown copyright 1998. Published with the permission of the Ministry ofDefence on behalf of the Controller of Her Majesty's Stationery OfficeApplications for reproduction should be made in writing to TheCopyright Unit, Her Majesty's Stationery Office, St Clements House,2-16 Colegate, Norwich NR3 1 BQFirst published December 1997 ISBN 0 11 772859 4 References updated to July 1997 Prepared by Ove Arup and Partners on behalf of the Defence EstateOrganisationCover photograph by kind permission of the InternationalConvention Centre, BirminghamContentsContentsSchedulesTable sForewordAbbreviationsAmendments1 General Related Proven Working Electrical.

2 Electronic and Pneumatic 'As Installed' Operating and Maintenance Electricity Electrical Equipment and Asbestos Cfcs and Schedules2 Central Plant2 . 1 Boilers steam water Tube Steel Shell, 3-pass Economic Steel Shell Reverse-flame Continuous-coil steam Electrode Waste Heat Electrical Resistance Heated Hot water water Tube BoilersPageiiiviiiixXxixii11222233344555 55677788888999 October Steel Shell 3-pass Economic Steel Shell Reverse-flame Continuous-coil Hot water Electrode Waste Heat Cast-iron Sectional Steel 'Box-type' Modular Boilers of Low water ContentDomestic Hot water Electrical Resistance Oil Or Gas-fired water HeatersCondensing BoilersBoilers steam Hot water Solid Fuel Oil Fired Gas Fired Dual-fuel and Multi-fuel InstallationsCombustion Oil Gas Solid Fuel Dual and

3 Multi-fuel Electric Multi-boiler InstallationsSafety steam Boiler Hot water Boiler General RequirementsProtection OverheatingIndicator Lights and AlarmsChimneys, Flues and Flue DuctsDampersHot water system Gas Pressurisation Sealed Diaphragm Vessel Constant or Intermittent Running Pump SystemsWater water Pre-treatment steam Boiler Chemical Conditioning Equipment for steam Filling Hot water InstallationsChemical Conditioning Equipment for Hot water InstallationsInstrumentation999991010101 0101011111111121212121415151515161616161 6171717181818181819192020202021212121222 323232424 October EquipmentCirculating lthw and MTHW heating and DHWS HTHW heating SystemsBoiler Feed PumpsCondensate Pumps and Receiver SetsSemi-rotary Hand PumpsOil Circulating and Oil Transfer PumpsFire Protection system PumpsDistribution InstallationTubes and PipesPipework Joints and lthw and MTHW HTHW

4 steam Condensate water DHWS Cold water Natural Gas LPG Vapour Distribution Oil Fuel Fire Protection SystemsWeldingBrazingAncillary Pipework Expansion Air Emptying Down, Draining and FlushingGeneralBelow Ground Distribution PipeworkThe Environmental Agency RequirementsCalorifiers, Cylinders Cisterns and water TanksCalorifiersCylindersElectrically Heated Hot water Storage VesselsPlate Heat ExchangersCisterns and Cold water TanksFeed/expansion and Spill Vessels for Boiler InstallationsBoiler Feed Tanks (Hotwells) for steam Boilers Tanks for steam BoilersSpace heating EquipmentRadiatorsConvectorsContinuous Perimeter HeatingRadiant Panels, Strips, Ceilings and FloorsUnit HeatersEquipment for steam and HTHW heating AppliancesSurface Temperatures2626262727272828282929293030 3031313131323232323334343435353536373741 4242424243434344454546464747 October , Taps and CocksGeneralSafety and Relief ValvesPressure Reducing ValvesThermostatic Control ValvesLthw Radiator ValvesRegulating ValvesSystem Commissioning Valve SetsLTHW and MTHW heating SystemsHTHW heating SystemsSteam SystemsCondensate SystemsDHWS and Cold water Supply SystemsNatural Gas ServicesLPG Vapour Distribution SystemsOil Fuel ServicesFire Protection SystemsValve LabellingAutomatic Controls.

5 Controllers, Cubicles and PanelsGeneralSpace heating and Domestic Hot water Primary Temperature Time Programme Space Temperature Room Thermostats and Temperature heating Combined heating and DHWS DHWS Types and On/off Integral Proportional Plus Integral ControllersControl Cubicles and Indicator WiringMiscellaneous lthw heating and DHWS MTHW and HTHW heating SystemsPressure GaugesSteam TrapsStrainers for Hot water heating SystemsHot and Cold water Mixing Valves and FittingsGas MetersPlatforms, Galleries, Stairways and Flooring, Landings and Hand-rail Stairways4848484949494950505050515151525 2525757575858595959596060606060606061616 262626262636363646464646464 October 199710 Thermal Types of Within External to Methods of In Boiler Houses and Plant In Buildings Other Than Boiler Houses andPlant External to Buildings in Open Air or in Colour Code11 Electrical Equipment and E lectric Control Immersion Heaters for Hot F a n Testing12 Inspection.

6 Tests and Inspections by Competent Responsibility for Reporting Infringement of Inspection and Tests on Tests Boiler Performance TestsOctober 1997 vii6565656666676767676768687777777878787 87879797980808181 SchedulesSchedule No. 1 Particular Application to this Contract .. 1 (of addendum)(12 Pages)Schedule No. 2 Information to be Supplied by the Tenderer .. 1 (of addendum)(8 Pages)viii October 1997 TablesPageTable 2A Selection Table for Boiler Plant 25 Table 4A Selection Table for Tubes and Pipes for lthw , MTHW,HTHW, steam , Condensate, DHWS and CWS Installations 38 Table 4B Selection Table for Tubes and Pipes for Natural Gas, LPG.

7 Oil Fuel and Fire Protection Installations 39 Table 4C Intervals Between Support Centres for Steel Pipework 40 Table 4D Intervals Between Support Centres for Copper Pipework 40 Table 7A Selection Table for Valves and Cocks 53 Table 10A Minimum Thickness of Insulation for Cold water Suppliesto Prevent Condensation on a High Emissivity OuterSurface ( ) with an Ambient Temperature of +25Ec and aRelative Humidity of 80%. 69 Table 10B Minimum Thickness of Insulation for Cold water Suppliesto Prevent Condensation on a Low Emissivity Outer Surface( ) with an Ambient Temperature of +25Ec and a RelativeHumidity of 80%. 69 Table 10C Calculated Minimum Thickness of Insulation Required toProtect Against Freezing under Industrial Conditions 70 Table 10D Calculated Minimum Thickness of Insulation to ProtectAgainst Freezing for Commercial and InstitutionalApplications 71 Table 10E Economic Thickness of Insulation for Non-domestic HeatingInstallations Served by Solid Fuel-fired Boiler Plant 72 Table 10F Economic Thickness of Insulation for Non-domestic HeatingInstallations Served by Gas Boiler Plant 73 Table 10G

8 Economic Thickness of Insulation for Non-domestic HeatingInstallations Served by Oil-fired Boiler Plant 74 Table 10H Economic Thickness of Insulation for Non-domestic HotWater Services 75 Table 10J Economic Thickness of Insulation for Process Pipework andEquipment 76 October 1997 Foreword1. This Specification is one of a series prepared by the Defence EstateOrganisation primarily for use in its contracts for mechanical andelectrical engineering works. The Specification covers the installation ofheating, hot and cold water , steam and gas services for buildings otherthan dwellings. It is a revision of the former Standard Specification (M&E) No. 3, dated 1988, and Guidance Notes for Users, dated When this Specification is used in connection with a Defence contractthen it is to be read in conjunction with such further documents settingout contractual requirements particular to the Whilst this Specification was commissioned by the DEO for use on MODcontracts, it is acknowledged that it could be usefully applied to othercontracts.

9 DEO commends its use to other Government may therefore be used outside the MOD estate. However, no warrantyis given as to the accuracy of this Specification or its fitness for This Specification has been devised for the use of the Crown and itscontractors in the execution of contracts for the Crown. The Crownhereby excludes all liability (other than liability for death or personalinjury) whatsoever and howsoever arising (including, but withoutlimitation, negligence on the part of the Crown, its servants or agents) forany loss or damage however caused where the document is used for anyother 1997 AbbreviationsBritish CoalBritish Effluent and water AssociationBritish Gas CorporationBritish StandardBritish Standard Euro NormBritish Standard Pipe threadChartered Institution of Building Services EngineersBritish Standard Code of PracticeCompetent PersonCold water supplyDomestic hot water serviceDefence Estate OrganisationElectric Resistance WeldedGross calorific valueGlass reinforced plasticsHigh temperature hot waterHeating and Ventilating Contractors AssociationInstitution of Electrical EngineersInstitution of Gas EngineersInternational Standards OrganisationLight emitting diodeLiquefied petroleum gasLow temperature hot waterMaximum continuous ratingMedium

10 Temperature hot waterNational Joint Industrial CouncilNoise ratingNational Rivers AuthorityProject ManagerParticular specificationSeamlessThermostatic radiator valveOctober 1997 The following abbreviations are used in this Specification :BCBEWABGCBSBSENBSPCIBSEBSC PCPcwsDHWSDEOERWGCVGRPHTHWHVCAIEEIGEISOL EDLPGLTHWMCRMTHWNJICNRNRAPMPSsTRYA mendmentsPlease use this table to make a note of any amendments 1997 heating , hot and cold water , steam and gas installations for buildingsSection One General This Specification details the design andother requirements for low, medium and hightemperature hot water heating installations, domestichot and cold water supplies, steam and condensate,gas and oil fuel services and fire protection systems,for Unless otherwise indicated, the work shallinclude design, manufacture, works testing, supply,delivery to site, installation, site testing,commissioning, making good any defects that occurduring the defect liability period.