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18、ake such copies, you are required to destroy them immediately. Use of this document constitutes your acceptance of the terms and conditions of this Legal Notice.Revision HistoryANSI/CSA C448 Series-16, Design and installation of ground source heat pump systems for commercial and residential building
19、sErrata August 2017 Revision symbol (in margin)PrefaceStandards Update ServiceANSI/CSA/IGSHPA C448 Series-16January 2016Title: Design and installation of ground source heat pump systems for commercial and residential buildingsTo register for e-mail notification about any updates to this publication
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23、ds Institute, Inc.Approved on January 15, 2016 by ANSIDesign and installation of ground source heat pump systems for commercial and residential buildingsANSI/CSA/IGSHPA C448 Series-16ANSI/CSA/IGSHPA C448 Series-16Design and installation of ground source heat pump systems for commercial and residenti
24、al buildingsJanuary 2016 2016 CSA Group1ContentsTechnical Committee on Earth Energy Systems 12Preface 16ANSI/CSA/IGSHPA C448.0-16, Design and installation of ground source heat pump systems Generic applications for all systems1 Scope 192 Reference publications 203 Definitions 254 General 314.1 Engin
25、eering and designing 314.2 Work by designated trade 334.3 Property and access 334.4 Open-loop systems 334.5 Electrical requirements 335 Equipment, materials, handling, and installation 335.1 General 335.2 General requirements 345.3 Heat pump unit 355.3.1 General requirements 355.3.2 Installation and
26、 performance requirements 355.3.3 Heat pump status indicator 355.4 Underground and underwater piping systems requirements 355.4.2 Polyethylene (PE) pipe and fittings 365.4.3 Crosslinked polyethylene (PEX) pipe and fittings 375.4.4 Pipe joining 395.5 Indoor piping, fittings, and accessories 405.5.1 G
27、eneral 405.6 Pipe and fitting on-site storage 405.6.1 Plastic systems 405.7 Heat transfer medium 415.7.1 Fluid for ground -loop heat pump systems 415.7.2 Refrigerant 445.8 Drilling, excavating, grouting, and backfilling 445.8.1 Drilling 445.8.2 Excavating 445.8.3 Grouting 445.8.4 Backfilling 46ANSI/
28、CSA/IGSHPA C448 Series-16Design and installation of ground source heat pump systems for commercial and residential buildingsJanuary 2016 2016 CSA Group2ANSI/CSA/IGSHPA C448.1-16, Design and installation of ground source heat pump systems for commercial and institutional buildings1 Scope 482 Referenc
29、e publications 484 General 485 Equipment, materials, handling, and installation 486 Site survey requirements 487 Design of systems 497.1 General 498 Installation of systems 518.1 General 518.1.1 General requirements 518.1.2 Interior piping systems design elements 528.1.3 Interior piping material 528
30、.1.4 Insulation systems 599 Testing and verification 599.1 General 599.2 Heat pump replacement 6010 Heat pump and distribution system design 6110.1 Heat pump design 6110.2 Supply and return line temperatures and pressures 6111 Heat pump and distribution system installation 6112 System start-up and d
31、elivery 6112.1 General 6112.2 Labelling 6212.3 Delivery documentation 6312.3.1 Manuals 6312.3.2 As-built drawings 6312.4 Heat exchanger location 6312.4.1 General 6312.4.2 Closed-loop ground heat exchanger 64ANSI/CSA/IGSHPA C448.2-16, Design and installation of ground source heat pump systems for res
32、idential and other small buildings1 Scope 662 Reference publications 66ANSI/CSA/IGSHPA C448 Series-16Design and installation of ground source heat pump systems for commercial and residential buildingsJanuary 2016 2016 CSA Group33 Definitions 664 General 665 Equipment, materials, handling, and instal
33、lation 666 Site survey requirements 666.1 General 666.2 Closed-loop ground heat exchangers 676.3 Open-loop supply water well 677 Design of systems 687.1 General 687.2 Ground heat exchanger system design 707.3 Direct expansion (DX) system design 717.4 Submerged system design 717.5 Groundwater system
34、design 727.6 Whole load ground source heat pump system design (for single-family dwellings only) 727.7 Partial load ground source heat pump system (for single-family dwellings only) 737.8 Heat pump system design 738 Installation of systems 748.1 General 748.2 Polyethylene (PE) and crosslinked polyet
35、hylene (PEX) material 748.3 Submerged heat exchanger installation (closed loop) 758.4 Groundwater system installation (open loop) 769 Testing and verification 769.1 General 769.2 Closed-loop systems 779.2.1 Ground heat exchangers 779.2.2 Direct expansion (DX) systems 779.3 Plastic pipe system flushi
36、ng and charging 789.3.1 Flushing 789.3.2 Charging 799.4 Heat pump replacement 7910 Distribution system design 8010.1 General 8010.2 Air distribution systems 8010.3 Plumbing and hydronic heating systems 8110.4 Thermostat placement requirements 8110.4.1 Thermostat placement 8110.4.2 Thermostat feature
37、s 8110.4.3 Outdoor reset control 8110.5 Supply and return line temperature and pressure 8110.6 Verification 8111 System start-up and delivery 8211.1 General 82ANSI/CSA/IGSHPA C448 Series-16Design and installation of ground source heat pump systems for commercial and residential buildingsJanuary 2016
38、 2016 CSA Group411.2 Labeling 8211.3 Delivery documentation 8311.4 Heat exchanger location 8311.4.1 General 8311.4.2 Submerged exchanger system 83ANSI/CSA/IGSHPA C448.3-16, Installation of vertical configured closed-loop ground source heat pump systems1 Scope 862 Reference publications 863 Definitio
39、ns 874 Site survey requirements 884.1 General 884.2 Subsurface investigation 884.3 Identification of buried utilities 894.4 Setbacks 894.5 In situ (formation) thermal conductivity test 895 Heat exchanger materials and methods 915.1 General 915.2 Installation personnel and training required 915.3 Pip
40、ing material 925.4 Inspection 925.5 Grouting 925.5.1 General 925.5.2 Grout classification 925.5.3 Grout properties 925.5.4 Water quality 935.5.5 Grout test reports 936 Pipe placement and backfilling 936.1 Drilling 936.2 Inspection and documentation 946.3 Grouting and sealing the vertical borehole he
41、at exchanger 946.3.1 Grouting rationale 946.3.2 Grouting 946.4 Header (horizontal) piping 966.4.1 Excavating 966.4.2 Pipe installation 966.4.3 Locating and backfilling 977 Heat transfer fluids 977.1 General 977.2 Flushing, purging, and charging 98ANSI/CSA/IGSHPA C448 Series-16Design and installation
42、 of ground source heat pump systems for commercial and residential buildingsJanuary 2016 2016 CSA Group57.3 Water quality requirements 997.4 Properties of anti-freeze solutions 1007.4.1 General 1007.4.2 Requirements for anti-freeze 1007.4.3 Heat transfer fluid packaging and identification 1007.4.4 H
43、eat transfer fluid application 1008 Testing and verification 1018.1 General 1018.2 Closed-loop systems Pressure testing 1018.3 Connection to the building system 1029 System start-up and delivery 1039.1 As-built documentation 1039.2 Record of all tests 1049.3 Site restoration 10410 Decommissioning an
44、d abandonment 10410.1 General 10410.2 Loop pipe testing, flushing, and cleaning 10510.3 Permanent loop fluid 10510.4 System seal 10510.5 Grout materials 10610.6 Annular grout placement 10610.7 Special conditions 10610.8 Vertical loop piping and headering commissioning records 10710.9 Decommissioning
45、 and abandonment 10710.9.4 Closed-loop, fluid-based systems 108ANSI/CSA/IGSHPA C448.4-16, Installation of horizontal configured closed-loop ground source heat pump systems1 Scope 1102 Reference publications 1103 Definitions 1114 Site survey requirements 1114.1 General 1114.2 General requirements 111
46、4.3 Detail requirements 1124.4 Setbacks 1134.5 Identification and resolution of potential interference 1135 Heat exchanger materials and methods 1135.1 General 1135.2 Installation personnel and training required 113ANSI/CSA/IGSHPA C448 Series-16Design and installation of ground source heat pump syst
47、ems for commercial and residential buildingsJanuary 2016 2016 CSA Group65.3 Piping material 1145.4 Inspection 1145.5 Grouting 1145.5.1 General 1145.5.2 Grout classification 1155.5.3 Grout properties 1155.5.4 Water quality 1155.5.5 Grout test reports 1156 Pipe placement and backfilling 1156.1 Layout
48、1156.2 Excavating 1166.3 Inspection 1166.4 Horizontal boring and grouting 1186.5 Site restoration 1197 Heat transfer fluids 1197.1 General 1197.2 Flushing, purging, and charging 1207.3 Water quality requirements 1207.4 Properties of anti-freeze solutions 1217.4.1 General 1217.4.2 Requirements for an
49、ti-freeze 1217.4.3 Heat transfer fluid packaging and identification 1217.4.4 Heat transfer fluid application 1228 Horizontal ground heat exchanger (GHEX) testing 1228.1 General 1228.1.1 General requirements 1228.1.2 Laboratory testing of local earth 1228.1.3 Field using weighted averaging 1238.1.4 In situ local earth temperature, thermal conductivity, and diffusivity 1238.1.5 Soil moisture content 1238.1.6 Reporting 1238.2 Heat sink or source GHEX performance 1238.3 Configurations of the GHEX 1248.3.1 Piping and looping lengths 1248.3.2 Orientation of the G
