DENVER INTERNATIONAL AIRPORT DESIGN STANDARDS MANUAL Mechanical Airport Infrastructure Management Revised: Q4 2022 Included Technical Specification Requirements Manual Division 02: Existing Conditions Architecture Division 03: Concrete Civil Division 04: Masonry Structural Division 05: Metals Architecture Division 06: Wood, Plastics, and Composites Architecture Division 07: Thermal and Moisture Protection Architecture Division 08: Openings Architecture Division 09: Finishes Architecture Division 10: Specialties Architecture Division 11: Equipment Architecture Division 12: Furnishings Architecture Division 13: Special Construction Structural Division 14: Conveying Equipment Architecture Division 21: Fire Suppression Life Safety Division 22: Plumbing Mechanical Division 23: Heating, Ventilating, and Air-Conditioning (HVAC) Mechanical Division 26: Electrical Electrical Division 27: Communications Communication & Electronic Systems Division 28: Electronic Safety and Security Communication & Electronic Systems Division 31: Earthwork Civil Division 32: Exterior Improvements Civil Division 33: Utilities Civil Copyright ©1989-2022 by City and County of Denver, Denver International Airport Content has been reviewed and edited by AIM Development. 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Printed in the United States of America Mechanical Design Standards Manual Table of Contents Table of Contents Summary of Revisions .............................................................................................................................. xxvii Purpose of Design Standards Manuals ................................................................................................... xxxiii Chapter 1- General ..................................................................................................................................... 35 1.0 General ........................................................................................................................................... 35 1.0.1 Intent ..................................................................................................................................... 35 1.0.2 Definitions .............................................................................................................................. 35 1.0.3 General .................................................................................................................................. 37 1.0.4 DEN Mechanical Engineer ...................................................................................................... 37 1.0.5 Regulatory Requirements ...................................................................................................... 37 1.0.6 Work Sequence, Coordination, and Installation .................................................................... 38 1.0.7 Site Conditions ....................................................................................................................... 38 1.1 Design Criteria ................................................................................................................................ 38 1.1.1 System Criteria ....................................................................................................................... 38 1.1.2 Mechanical Design Criteria - Flexibility .................................................................................. 39 1.1.3 Ventilation Standards ............................................................................................................ 40 1.1.4 Energy Efficiency Requirements ............................................................................................ 40 1.1.5 Noise Criteria ......................................................................................................................... 40 1.1.6 Altitude Correction ................................................................................................................ 42 1.1.7 Supports and Penetrations .................................................................................................... 42 1.2 Equipment Identification ................................................................................................................ 42 1.2.1 General .................................................................................................................................. 42 1.2.2 Air Handling Unit, Unitary Equipment, and Hydronic Equipment Identification .................... 42 1.2.3 Dependent Unit Equipment Identifier ................................................................................... 44 1.3 DEN Mechanical/Plumbing Equipment Naming Components – Identifiers .................................... 45 1.4 Submittals ....................................................................................................................................... 46 1.4.1 Design Submittals .................................................................................................................. 46 1.4.2 As-Built Submittals ................................................................................................................. 46 1.5 Equipment Supports and Thermal Expansion Compensation ......................................................... 47 1.5.1 Design .................................................................................................................................... 47 Chapter 2- Central Utility Plant ................................................................................................................... 49 2.0 Central Utility Plant ......................................................................................................................... 49 2.0.1 Existing Campus Heating/Cooling Systems Operation ........................................................... 49 2.0.2 Seasonal Operation ................................................................................................................ 50 2.1 Equipment ...................................................................................................................................... 50 2.1.1 Chillers ................................................................................................................................... 50 2.1.2 Refrigerant Recovery ............................................................................................................. 51 2.1.3 Cooling Towers ...................................................................................................................... 51 2.1.4 Boilers .................................................................................................................................... 52 2.1.5 Pumps .................................................................................................................................... 52 2.1.6 Air Compressors ..................................................................................................................... 52 2.1.7 Motors ................................................................................................................................... 53 2.1.8 Water Treatment ................................................................................................................... 53 2.1.9 HVAC ...................................................................................................................................... 53 2.1.10 Piping and Valves ................................................................................................................. 54 2.1.11 Central Plant Facilities .......................................................................................................... 55 2.1.12 Chilled Water System ........................................................................................................... 56 2.1.13 Condenser Water System .................................................................................................... 56 Q4 2022 iii Denver International Airport Mechanical Design Standards Manual Table of Contents 2.1.14 Heating System .................................................................................................................... 58 2.2 Energy Management ...................................................................................................................... 58 2.2.1 General .................................................................................................................................. 58 2.3 Equipment Tags and Re-Numbering ............................................................................................... 59 Chapter 3- HVAC Systems ........................................................................................................................... 61 3.0 HVAC Systems ................................................................................................................................. 61 3.0.1 Air Handling Systems ............................................................................................................. 61 3.0.2 Single-Zone Systems .............................................................................................................. 62 3.0.3 Multi-Zone Systems ............................................................................................................... 62 3.0.4 Heat-Pump Systems ............................................................................................................... 62 3.0.5 Roof-Mounted HVAC Systems ............................................................................................... 63 3.0.6 Variable Air Volume Systems ................................................................................................. 64 3.0.7 Perimeter Systems ................................................................................................................. 65 3.0.8 HVAC for Unfinished (Tenant) Areas ...................................................................................... 65 3.0.9 Fan Walls ............................................................................................................................... 66 3.1 Special Systems ............................................................................................................................... 66 3.1.1 Computer Rooms ................................................................................................................... 66 3.1.2 Evaporative Cooling ............................................................................................................... 66 3.1.3 Humidification ....................................................................................................................... 67 3.1.4 Air Curtains ............................................................................................................................ 67 3.2 Ventilation Systems ........................................................................................................................ 67 3.2.1 Outdoor Air Requirements..................................................................................................... 67 3.2.2 Air Economizer Control .......................................................................................................... 67 3.2.3 Return Air/Transfer Air .......................................................................................................... 68 3.2.4 Ventilation Rates .................................................................................................................... 68 3.2.5 Filtration ................................................................................................................................ 68 3.3 Heating, Ventilation, and Exhaust Systems ..................................................................................... 68 3.3.1 General .................................................................................................................................. 68 3.3.2 Bag Makeup and Tug Drive Area ............................................................................................ 68 3.3.3 Truck Dock Ventilation ........................................................................................................... 69 3.3.4 Toilet Exhaust ........................................................................................................................ 69 3.3.5 Service Level .......................................................................................................................... 69 3.3.6 Atrium/Great Hall .................................................................................................................. 69 3.4 Existing Systems .............................................................................................................................. 70 3.4.1 General .................................................................................................................................. 70 3.4.2 Existing Air Handling Systems ................................................................................................ 70 3.4.3 Existing HVAC Air Distribution ................................................................................................ 71 3.4.4 Existing Base Building Compressed Air Systems .................................................................... 71 3.4.5 Existing Ventilation/Smoke Control Fans (Historical Reverence Only) ................................... 71 3.5 Tenant Remodel Requirements ...................................................................................................... 72 3.5.1 Tenant Design Parameters ..................................................................................................... 72 3.5.2 Existing Base Building Mechanical Design Capabilities ........................................................... 72 3.5.3 VAV Terminal Air Units ........................................................................................................... 72 3.5.4 New Tenant HVAC Systems ................................................................................................... 73 3.5.5 New Tenant Air Handling Units .............................................................................................. 73 3.5.6 Food and Beverage Tenant Equipment.................................................................................. 73 3.5.7 Electrical Closets/Communications Rooms/Fire Control Rooms/Fire Pump Rooms .............. 74 3.6 Sustainability ................................................................................................................................... 74 Chapter 4- Air Distribution Systems ............................................................................................................ 75 Q4 2022 iv Denver International Airport Mechanical Design Standards Manual Table of Contents 4.0 Air Distribution Systems .................................................................................................................. 75 4.0.1 Ductwork Design .................................................................................................................... 75 4.0.2 Ductwork Requirements ........................................................................................................ 75 4.0.3 Dampers ................................................................................................................................ 76 4.0.4 Diffusers ................................................................................................................................. 76 4.0.5 Grilles ..................................................................................................................................... 76 4.0.6 Transfer Air ............................................................................................................................ 76 4.0.7 VAV Terminal Air Units ........................................................................................................... 76 4.0.8 Security Grates ...................................................................................................................... 77 4.0.9 Ductwork Supports ................................................................................................................ 77 4.0.10 Presentation of Ductwork Systems ...................................................................................... 77 Chapter 5- Controls .................................................................................................................................... 79 5.0 Controls .......................................................................................................................................... 79 5.0.1 General .................................................................................................................................. 79 5.0.2 Existing Base Building HVAC Control Systems ........................................................................ 79 5.0.3 New and Replacement HVAC Control Systems ...................................................................... 80 5.1 Control System Instrument Air ....................................................................................................... 81 5.1.1 General .................................................................................................................................. 81 5.2 Sample Control Components and Requirements ............................................................................ 81 5.2.1 AHU Controls ......................................................................................................................... 81 5.2.2 VAV Terminal Unit Controls ................................................................................................... 82 5.2.3 Unit Heater Controls .............................................................................................................. 82 5.2.4 Split Systems – Fan Coil Units (FCU) ...................................................................................... 82 5.2.5 Exhaust Fan ............................................................................................................................ 83 5.2.6 Pump Controls ....................................................................................................................... 83 5.2.7 Monitoring ............................................................................................................................. 83 5.2.8 HVAC Control Functions ......................................................................................................... 83 5.2.9 Thermostats and Temperature Sensors................................................................................. 85 5.2.10 Carbon Monoxide Sensors ................................................................................................... 85 5.3 Central Control Systems for Main Airport Buildings ....................................................................... 85 5.3.1 Software ................................................................................................................................ 85 5.3.2 Graphics Capabilities .............................................................................................................. 86 5.3.3 Trend Logging and Graphing .................................................................................................. 86 5.4 Sequence of Operation ................................................................................................................... 86 5.4.1 Emergency Shutdown ............................................................................................................ 86 5.4.2 Automatic Shutdown ............................................................................................................. 86 5.5 Controls Points Naming .................................................................................................................. 86 5.5.1 General .................................................................................................................................. 86 5.5.2 Supervisory Controller Point Naming ..................................................................................... 87 5.5.3 Non-supervisory Controller Point Naming ............................................................................. 88 Chapter 6- Hydronic Systems ...................................................................................................................... 91 6.0 Hydronic Systems............................................................................................................................ 91 6.0.1 Existing Campus Heating/Cooling Systems Operation ........................................................... 91 6.1 Equipment ...................................................................................................................................... 91 6.1.1 Chilled Water System ............................................................................................................. 91 6.1.2 Heating System ...................................................................................................................... 91 6.1.3 Hydronic Requirements ......................................................................................................... 92 6.1.4 Tenant Loops ......................................................................................................................... 92 6.1.5 Piping and Valves ................................................................................................................... 93 Q4 2022 v Denver International Airport Mechanical Design Standards Manual Table of Contents 6.1.6 Pumps .................................................................................................................................... 93 6.1.7 Motors ................................................................................................................................... 94 6.2 Design Criteria ................................................................................................................................ 94 6.2.1 General Requirements ........................................................................................................... 94 6.3 Piping Supports ............................................................................................................................... 96 6.3.1 Design .................................................................................................................................... 96 6.3.2 Products ................................................................................................................................. 96 6.4 Existing Systems .............................................................................................................................. 96 6.4.1 Hydronic Requirements ......................................................................................................... 96 6.5 Update of Standard Diagrams ......................................................................................................... 96 6.5.1 Flow Diagrams ....................................................................................................................... 96 Chapter 7- Space Requirements and Maintainability .................................................................................. 97 7.0 Space Requirements and Maintainability ....................................................................................... 97 7.0.1 General .................................................................................................................................. 97 7.1 Design Requirements ...................................................................................................................... 97 7.1.1 Design .................................................................................................................................... 97 7.1.2 Equipment Selection .............................................................................................................. 97 7.1.3 Bearings ................................................................................................................................. 97 7.1.4 Construction Requirements ................................................................................................... 97 7.1.5 Fan Housing ........................................................................................................................... 98 7.1.6 Access Doors .......................................................................................................................... 98 7.2 Space Requirements ....................................................................................................................... 98 7.2.1 Mechanical Rooms ................................................................................................................. 98 7.2.2 Mechanical Chases ................................................................................................................ 98 7.2.3 Equipment Clearance ............................................................................................................. 98 7.2.4 EMCS/Control Equipment Clearance ..................................................................................... 98 7.2.5 Equipment Removal Routes ................................................................................................... 98 7.2.6 Plumbing Chases .................................................................................................................... 99 7.2.7 Baggage System Right of Way ................................................................................................ 99 7.3 Equipment Protection ..................................................................................................................... 99 7.3.1 General .................................................................................................................................. 99 Chapter 8- Plumbing Requirements .......................................................................................................... 101 8.0 Plumbing Requirements ................................................................................................................ 101 8.0.1 General ................................................................................................................................ 101 8.0.2 System Requirements .......................................................................................................... 101 8.1 Plumbing Design Parameters ........................................................................................................ 101 8.1.1 General ................................................................................................................................ 101 8.1.2 Fixture Count ....................................................................................................................... 101 8.1.3 Calculations .......................................................................................................................... 102 8.1.4 Terminal ............................................................................................................................... 102 8.1.5 Concourses .......................................................................................................................... 102 8.1.6 Sand Traps ........................................................................................................................... 102 8.1.7 Grease Traps ........................................................................................................................ 103 8.1.8 Floor Drains .......................................................................................................................... 105 8.1.9 Cleanouts ............................................................................................................................. 105 8.1.10 Industrial Waste ................................................................................................................. 105 8.1.11 Backflow Prevention .......................................................................................................... 105 8.1.12 Coordination ...................................................................................................................... 105 8.1.13 Piping Movement .............................................................................................................. 106 Q4 2022 vi Denver International Airport Mechanical Design Standards Manual Table of Contents 8.1.14 Future Tenant Spaces ........................................................................................................ 106 8.1.15 HVAC Coil Condensate Drains ............................................................................................ 106 8.1.16 Secondary Condensate Drains ........................................................................................... 106 8.2 Plumbing System Components ..................................................................................................... 107 8.2.1 General ................................................................................................................................ 107 8.2.2 Plumbing Fixtures and Equipment ....................................................................................... 107 8.2.3 Piping ................................................................................................................................... 108 8.2.4 Plumbing Pumps .................................................................................................................. 108 8.2.5 Plumbing Sumps .................................................................................................................. 109 8.2.6 Heat Trace Systems ............................................................................................................. 109 8.3 Energy Conservation in Plumbing Systems Design ....................................................................... 109 8.3.1 Domestic Hot Water ............................................................................................................ 109 8.3.2 Temperature ........................................................................................................................ 109 8.3.3 Safety Devices ...................................................................................................................... 109 8.4 Natural Gas ................................................................................................................................... 110 8.4.1 Sizing .................................................................................................................................... 110 8.4.2 Metering .............................................................................................................................. 110 8.4.3 Gas Systems Protection ....................................................................................................... 110 8.4.4 Sustainability ........................................................................................................................ 112 8.5 Tenant Remodel Requirements .................................................................................................... 112 8.5.1 Plumbing Requirements ...................................................................................................... 112 8.5.2 Grease Waste ...................................................................................................................... 112 8.5.3 Water Heaters ..................................................................................................................... 112 8.5.4 Water Meters ...................................................................................................................... 112 8.5.5 Backflow Prevention ............................................................................................................ 112 Chapter 9- Energy Analysis and LEED........................................................................................................ 115 9.0 Energy Analysis and LEED ............................................................................................................. 115 9.0.1 Codes and Standards ........................................................................................................... 115 9.0.2 LEED Certification ................................................................................................................ 115 9.0.3 LEED and On-Site Solar Power Generation .......................................................................... 116 9.1 Heat Recovery Systems ................................................................................................................. 116 9.2 Existing Facility Design and Analysis Conditions (Historical Reference) ........................................ 117 9.3 Building Envelope Evaluation (Historical Reference) .................................................................... 117 9.4 U Values (Historical Reference) .................................................................................................... 117 9.4.1 Glazing ................................................................................................................................. 117 9.4.2 Walls .................................................................................................................................... 117 9.4.3 Roof ..................................................................................................................................... 117 9.4.4 Floors Over Unheated Spaces .............................................................................................. 118 9.4.5 Slab-on-Grade Floors ........................................................................................................... 118 9.4.6 Alternatives .......................................................................................................................... 118 9.4.7 Summary .............................................................................................................................. 118 9.5 Building Components (Historical Reference) ................................................................................ 119 9.5.1 Daylighting ........................................................................................................................... 119 9.5.2 Entrances ............................................................................................................................. 119 9.5.3 High-Bay Areas ..................................................................................................................... 119 9.6 Air Leakage - All Buildings (Historical Reference) .......................................................................... 119 9.6.1 Windows .............................................................................................................................. 119 9.6.2 Swinging, Revolving or Sliding Doors for Nonresidential Use .............................................. 119 9.7 HVAC Systems (Historical Reference) ........................................................................................... 119 Q4 2022 vii Denver International Airport Mechanical Design Standards Manual Table of Contents 9.7.1 Controls and Automation..................................................................................................... 119 9.7.2 Variable Water Volume (VWV) Pumping ............................................................................. 120 9.7.3 Simultaneous Heating and Cooling ...................................................................................... 120 9.7.4 Outdoor Air Reset ................................................................................................................ 120 9.7.5 Energy Recovery (Historical Reference) ............................................................................... 120 9.8 HVAC Equipment (Historical Reference) ....................................................................................... 120 9.8.1 Equipment Efficiency ........................................................................................................... 120 9.8.2 Minimum Coefficient of Performance/Efficiency Levels ...................................................... 120 9.9 Insulation (Historical Reference) ................................................................................................... 121 9.9.1 Air-Handling Duct System Insulation ................................................................................... 121 9.9.2 Piping Insulation .................................................................................................................. 121 9.10 Plumbing Systems (Historical Reference) ................................................................................... 121 9.10.1 General .............................................................................................................................. 121 Chapter 10- Gate Services ........................................................................................................................ 123 10.0 General Requirements ................................................................................................................ 123 10.0.1 Acronyms and Definitions .................................................................................................. 123 10.0.2 Concourse A ....................................................................................................................... 123 10.0.3 Concourse B ....................................................................................................................... 123 10.0.4 Concourse C ....................................................................................................................... 123 10.0.5 Plant Description ................................................................................................................ 124 10.0.6 Plant Design ....................................................................................................................... 124 10.0.7 PCA Hydronic Design ......................................................................................................... 124 10.0.8 Equipment Support............................................................................................................ 125 10.1 PCA Units .................................................................................................................................... 125 10.1.1 PCA Unit Sizing ................................................................................................................... 125 10.1.2 United Airlines PCA Hose Adapters/Connectors ................................................................ 128 10.1.3 Hydronic PCA Units ............................................................................................................ 128 10.1.4 DX PCA Units ...................................................................................................................... 129 10.1.5 Condensate Drains ............................................................................................................. 129 10.2 General PCA Unit Requirements ................................................................................................. 129 10.2.1 PCA Unit Supports .............................................................................................................. 129 10.2.2 PCA Controls ...................................................................................................................... 129 10.2.3 Accessories ........................................................................................................................ 129 10.2.4 Painting .............................................................................................................................. 130 10.3 Fixed Walkways and Passenger Loading Bridges ........................................................................ 130 10.3.1 Ventilation and Conditioning ............................................................................................. 130 10.3.2 PLB Pressure Monitoring ................................................................................................... 130 10.3.3 Fire Protection ................................................................................................................... 131 10.4 Potable Water Cabinets .............................................................................................................. 131 10.4.1 Locations ............................................................................................................................ 131 10.4.2 Services .............................................................................................................................. 131 10.5 Update of Standard Diagrams ..................................................................................................... 131 10.5.1 Flow Diagrams ................................................................................................................... 131 Chapter 11- Facility Design ....................................................................................................................... 133 11.0 Facility Design ............................................................................................................................. 133 11.1 Passenger Terminal - Ticketing Level .......................................................................................... 133 11.1.1 Design Conditions .............................................................................................................. 133 11.1.2 Air Handling Systems ......................................................................................................... 133 11.1.3 Perimeter Systems ............................................................................................................. 133 Q4 2022 viii Denver International Airport Mechanical Design Standards Manual Table of Contents 11.1.4 Air Curtains ........................................................................................................................ 133 11.1.5 Outdoor Air Requirements ................................................................................................ 133 11.1.6 Ventilation Rates ............................................................................................................... 133 11.1.7 Filtration ............................................................................................................................ 133 11.1.8 AHU Controls ..................................................................................................................... 133 11.1.9 Central Utility Plant ............................................................................................................ 134 11.1.10 Plumbing Requirements .................................................................................................. 134 11.1.11 Fire Protection ................................................................................................................. 134 11.1.12 Smoke Control ................................................................................................................. 134 11.2 Passenger Terminal - Baggage Claim .......................................................................................... 134 11.2.1 Indoor Design Conditions ................................................................................................... 134 11.2.2 Air Handling Systems ......................................................................................................... 134 11.2.3 Perimeter Systems ............................................................................................................. 134 11.2.4 Air Curtains ........................................................................................................................ 135 11.2.5 Outdoor Air Requirements ................................................................................................. 135 11.2.6 Ventilation Rates................................................................................................................ 135 11.2.7 Filtration ............................................................................................................................ 135 11.2.8 AHU Controls ..................................................................................................................... 135 11.2.9 Central Utility Plant ............................................................................................................ 135 11.2.10 Plumbing Requirements .................................................................................................. 135 11.2.11 Fire Protection ................................................................................................................. 135 11.2.12 Smoke Control ................................................................................................................. 135 11.3 Passenger Terminal - Atrium ...................................................................................................... 136 11.3.1 Indoor Design Conditions ................................................................................................... 136 11.3.2 Air Handling Systems ......................................................................................................... 136 11.3.3 Outdoor Air Requirements ................................................................................................. 136 11.3.4 Ventilation Rates ................................................................................................................ 136 11.3.5 Filtration ............................................................................................................................ 136 11.3.6 AHU Controls ..................................................................................................................... 136 11.3.7 Central Utility Plant ............................................................................................................ 137 11.3.8 Plumbing Requirements ..................................................................................................... 137 11.3.9 Fire Protection ................................................................................................................... 137 11.3.10 Smoke Control ................................................................................................................. 137 11.4 Passenger Terminal - Train Station Security ............................................................................... 137 11.4.1 Indoor Design Conditions ................................................................................................... 137 11.4.2 Air Handling Systems ......................................................................................................... 137 11.4.3 Ventilation Rates ................................................................................................................ 137 11.4.4 Filtration ............................................................................................................................ 138 11.4.5 AHU Controls ..................................................................................................................... 138 11.4.6 Central Utility Plant ............................................................................................................ 138 11.4.7 Plumbing Requirements ..................................................................................................... 138 11.4.8 Fire Protection ................................................................................................................... 138 11.4.9 Smoke Control ................................................................................................................... 138 11.5 Passenger Terminal - Train Station Exit Pavilions ........................................................................ 138 11.5.1 Design Conditions .............................................................................................................. 138 11.5.2 Air Handling Systems ......................................................................................................... 138 11.5.3 Outdoor Air Requirements ................................................................................................. 139 11.5.4 Ventilation Rates ................................................................................................................ 139 11.5.5 Filtration ............................................................................................................................ 139 Q4 2022 ix Denver International Airport Mechanical Design Standards Manual Table of Contents 11.5.6 AHU Controls ..................................................................................................................... 139 11.5.7 Central Utility Plant ............................................................................................................ 139 11.5.8 Plumbing Requirements .................................................................................................... 139 11.5.9 Fire Protection ................................................................................................................... 139 11.5.10 Smoke Control ................................................................................................................. 139 11.6 Passenger Terminal - Train Station Loading Platforms ............................................................... 140 11.6.1 Design Conditions .............................................................................................................. 140 11.6.2 Air Handling Systems ......................................................................................................... 140 11.6.3 Outdoor Air Requirements................................................................................................. 140 11.6.4 Ventilation Rates ............................................................................................................... 140 11.6.5 Filtration ............................................................................................................................ 140 11.6.6 AHU Controls ..................................................................................................................... 140 11.6.7 Central Utility Plant ............................................................................................................ 140 11.6.8 Plumbing Requirements .................................................................................................... 140 11.6.9 Fire Protection ................................................................................................................... 140 11.7 Passenger Terminal - Concessions and Services ......................................................................... 141 11.7.1 Design Conditions .............................................................................................................. 141 11.7.2 Air Handling Systems ......................................................................................................... 141 11.7.3 Outdoor Air Requirements ................................................................................................. 141 11.7.4 Kitchen Exhaust ................................................................................................................. 141 11.7.5 Ventilation Rates................................................................................................................ 141 11.7.6 Filtration ............................................................................................................................ 141 11.7.7 AHU Controls ..................................................................................................................... 142 11.7.8 Central Utility Plant ............................................................................................................ 142 11.7.9 Plumbing Requirements..................................................................................................... 142 11.7.10 Fire Protection ................................................................................................................. 142 11.7.11 Smoke Control ................................................................................................................. 142 11.8 Passenger Terminal - Rest Rooms ............................................................................................... 142 11.8.1 Design Conditions .............................................................................................................. 142 11.8.2 Air Handling Systems ......................................................................................................... 142 11.8.3 Toilet Exhaust .................................................................................................................... 143 11.8.4 Filtration ............................................................................................................................ 143 11.8.5 Controls ............................................................................................................................. 143 11.8.6 Central Utility Plant ............................................................................................................ 143 11.8.7 Plumbing Requirements ..................................................................................................... 143 11.9 Passenger Terminal - Ground Transportation Level ................................................................... 144 11.9.1 Design Conditions .............................................................................................................. 144 11.9.2 Air Handling Systems ......................................................................................................... 144 11.9.3 Perimeter Systems ............................................................................................................. 144 11.9.4 Outdoor Air Requirements ................................................................................................. 144 11.9.5 Ventilation Rates ................................................................................................................ 144 11.9.6 Filtration ............................................................................................................................ 144 11.9.7 AHU Controls ..................................................................................................................... 144 11.9.8 Central Utility Plant ............................................................................................................ 144 11.9.9 Plumbing Requirements ..................................................................................................... 144 11.9.10 Fire Protection ................................................................................................................. 145 11.10 Passenger Terminal - Rental Car Level ...................................................................................... 145 11.10.1 Design Conditions ............................................................................................................ 145 11.10.2 Air Handling Systems ....................................................................................................... 145 Q4 2022 x Denver International Airport
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