DC Standards / Division 23 - Heating, Ventilating & Air Conditioning

The University of Texas at Austin Design and Construction Standards have been prepared by the University to guide and assist architects, engineers, other design professionals, contractors, and university staff (herein referred to as Professional) in understanding the preferences of The University of Texas at Austin in the development, maintenance, repair and replacement of its facilities and assets.

If you wish to download multiple files, you may do so by going to the Current Design and Construction Standards UT Box Folder.

Division 23 - Design Criteria

File Link (PDF)File Link (DOC)File TitleUpdates MadeRev. Date
UEM Steam and Steam Condensate Typical P&ID and Spec Break Exhibit (PDF) (DWG) (RVT) UEM Steam and Steam Condensate Typical P&ID and Specification Break ExhibitUpdate12/2021
UEM CHW with HEX Typical P&ID and Spec Break Exhibit (PDF) (DWG) (RVT) UEM CHW with HEX Typical P&ID and Specification Break ExhibitUpdate11/2022
UEM CHW without HX Typical P&ID and Spec Break Exhibit (PDF) (DWG) (RVT) UEM CHW without HX Typical P&ID and Specification Break ExhibitUpdate12/2021
Div23_CHWS_DC (PDF)Div23_CHWS_DC (DOC)Chilled and Hot Water Systems Design CriteriaUpdate01/2021
Div23_Airside_Systems_DC (PDF)Div23_Airside_Systems_DC (DOC)Airside Systems Design CriteriaUpdate02/2022
Div23_HVAC_SOO_DC (PDF)Div23_HVAC_SOO_DC (DOC)HVAC Controls Sequences of Operations Design Criteria Update07/2021
Div23_Steam_Systems_DC (PDF)Div23_Steam_Systems_DC (DOC)Steam Systems Design CriteriaUpdate05/2022
Div23_UEM_Main Campus_CHWS_DC (PDF)Div 23_UEM_Main Campus_CHWS_DC (DOC)Main Campus Chilled Water Service Design CriteriaUpdate05/2022
Div 23_UEM_Main Campus_District Energy_HHWS_DC (PDF)Div 23_UEM_Main Campus_District Energy_HHWS_DC (DOC)Main Campus District Energy Heating Hot Water Service Design CriteriaUpdate05/2022
Commissioning_DC (PDF)Commissioning_DC (DOC)Commissioning Design CriteriaUpdate03/2023

Division 23 - Technical Specifications

File Link (PDF)File Link (DOC)File TitleUpdates MadeRev. Date
23.00.00 (PDF)23.00.00 (DOC)Basic HVAC RequirementsUpdate07/2022
23.05.00 (PDF) Common Work Results for HVACNone04/2012
23.05.13 (PDF)23.05.13 (DOC)Common Motor Requirements for HVAC EquipmentUpdate06/2020
23.05.13.UEM (PDF)23.05.13.UEM (DOC)UEM MotorsUpdate07/2021
23.05.19 (PDF)23.05.19 (DOC)Manual Meters and GaugesUpdate10/2019
23.05.19.UEM (PDF)23.05.19.UEM (DOC)UEM Analog Meters and GaugesUpdate06/2022
23.05.23 (PDF)23.05.23 (DOC)Valves for HVACUpdate09/2023
23.05.23.UEM (PDF)23.05.23.UEM (DOC)UEM Hydronic, Steam, and Condensate ValvesUpdate09/2022
23.05.29 (PDF)23.05.29 (DOC)Hangers and Supports for HVAC Piping and EquipmentUpdate09/2017
23.05.53 (PDF)23.05.53 (DOC)Identification for HVAC Piping and EquipmentUpdate07/2021
23.05.53.A.UEM (PDF)23.05.53.A.UEM (DOC)UEM Mechanical Identification (for Central Plant, Tower Area and TES)Update02/2017
23.05.93 (PDF)23.05.93 (DOC)Testing Adjusting and BalancingUpdate01/2021
23.05.93.13 (PDF)23.05.93.13 (DOC)System Preparation for Testing, Adjusting and BalancingUpdate02/2018
23.07.00 (PDF)23.07.00 (DOC)General HVAC Insulation RequirementsUpdate08/2018
23.07.00.UEM (PDF)23.07.00.UEM (DOC)UEM Mechanical Insulation (CHW Piping and Equipment)Update02/2017
23.07.13 (PDF)23.07.13 (DOC)Ductwork InsulationUpdate08/2018
23.07.16 (PDF)23.07.16 (DOC)HVAC Equipment InsulationUpdate08/2018
23.07.16.UEM (PDF)23.07.16.UEM (DOC)UEM Equipment InsulationUpdate12/2023
23.07.19 (PDF)23.07.19 (DOC)HVAC Piping InsulationUpdate08/2018
23.07.19.UEM (PDF)23.07.19.UEM (DOC)UEM Piping InsulationUpdate12/2023
23.09.13.13.UEM (PDF)23.09.13.13.UEM (DOC)UEM Electrical ActuatorsUpdate11/2021
23.09.23 (PDF)23.09.23 (DOC)Direct Digital Control SystemsUpdate02/2022
23.09.43 (PDF)23.09.43 (DOC)Pneumatic Control System for HVACNone07/2017
23.10.00 (PDF)23.10.00 (DOC)Facility Fuel SystemsUpdate09/2019
23.20.00.23.UEM (XLSX) UEM Pipe Specification TablesUpdate09/2022
23.21.13 (PDF)23.21.13 (DOC)Hydronic Piping and FittingsUpdate09/2023
23.21.13.UEM (PDF)23.21.13.UEM (DOC)UEM Chilled Water and Heating Hot Water PipingUpdate09/2023
23.21.13.A.UEM (PDF)23.21.13.A.UEM (DOC)UEM UT Requirements for Water Treatment for Hydrostatic Testing of New Piping SystemsUpdate11/2021
23.21.13.B.UEM (PDF)23.21.13.B.UEM (DOC)UEM UT Procedures for Cleaning, Passivating & Final Treatment of Chilled & Hot Water PipingUpdate07/2021
23.21.23 (PDF)23.21.23 (DOC)Hydronic PumpsUpdate07/2022
23.21.23.UEM (PDF)23.21.23.UEM (DOC)UEM Centrifugal PumpsUpdate05/2022
23.21.26 (PDF)23.21.26 (DOC)Hydronic SpecialtiesUpdate06/2020
23.22.00 (PDF) Steam and Condensate Piping and PumpsNone04/2012
23.22.13 (PDF)23.22.13 (DOC)Steam and Condensate PipingUpdate09/2023
23.22.13.UEM (PDF)23.22.13.UEM (DOC)UEM Steam and Condensate PipingUpdate09/2022
23.22.16 (PDF)23.22.16 (DOC)Steam and Condensate SpecialtiesUpdate11/2022
23.22.16.UEM (PDF)23.22.16.UEM (DOC)UEM Steam and Condensate SpecialtiesUpdate11/2022
23.22.23.UEM (PDF)23.22.23.UEM (DOC)UEM Steam Condensate PumpsUpdate06/2022
23.25.00 (PDF)23.25.00 (DOC)HVAC Water TreatmentUpdate09/2022
23.25.16.UEM (PDF)23.25.16.UEM (DOC)UEM Steam and Condensate Flush, Clean, and PassivationUpdate11/2022
23.29.00 (PDF)23.29.00 (DOC)Variable Frequency DrivesUpdate09/2023
23.31.00 (PDF)23.31.00 (DOC)DuctworkUpdate03/2018
23.33.00 (PDF)23.33.00 (DOC)Duct AccessoriesUpdate09/2021
23.34.00 (PDF)23.34.00 (DOC)HVAC FansUpdate04/2023
23.36.00 (PDF)23.36.00 (DOC)Air Terminal UnitsUpdate12/2017
23.37.00 (PDF)23.37.00 (DOC)Air Inlets and OutletsUpdate07/2022
23.41.00 (PDF)23.41.00 (DOC)Particulate Air FiltrationUpdate06/2018
23.51.00 (PDF)23.51.00 (DOC)Breechings, Chimneys, and StacksUpdate07/2022
23.52.33.UEM (PDF)23.52.33.UEM (DOC)UEM Water-Tube BoilersUpdate02/2017
23.57.00 (PDF)23.57.00 (DOC)Heat ExchangersUpdate09/2023
23.60.00 (PDF) Central Cooling EquipmentNone04/2012
23.62.00 (PDF)23.62.00 (DOC)Packaged DX Air ConditionersUpdate07/2018
23.72.00 (PDF)23.72.00 (DOC)Air-to-Air Energy Recovery EquipmentUpdate12/2019
23.73.00 (PDF)23.73.00 (DOC)Indoor Air Handling UnitsUpdate09/2023
23.74.00 (PDF)23.74.00 (DOC)Packaged Air Handling UnitsUpdate09/2022
23.81.26 (PDF)23.81.26 (DOC)Ductless Split System Air ConditionersUpdate03/2024
23.82.13 (PDF)23.82.13 (DOC)Fan Coil UnitsUpdate10/2023

 

Division 23 - Supplemental Standards

File Title and LinkUpdates MadeRev. Date
Pipe Testing ProceduresNone09/2012
Energy and Water Performance Information Request (PDF) (DOC)Update12/2019
Design & Construction Standard Detail DrawingsNone04/2017
Non-Routine Discharge GuidanceNone04/2017
Food Establishment GuidelinesNone09/2019
Standard Operating Procedure for Dye TestingUpdate07/2021

Detail Drawings

All Standard Detail Drawings presented herein are intended to assist architects, engineers, other design professionals, contractors and UT staff in understanding the preferences of The University of Texas at Austin in the development, maintenance, construction and repair of its facilities. These Detail Drawings are intended to be used as guidelines. Detail Drawing documents require modification to meet the conditions and appurtenances of each project; therefore the legal responsibility for project document preparation shall continue to reside with the Design Professional. Refer to the Welcome Page for additional requirements. The Detail Drawings were created in AutoCAD 2007 file format; AutoCAD is a registered trademark of Autodesk Inc.

Important: These Detail Drawing documents are for use by The University of Texas at Austin and its consultants and contractors. Drawings remain the property of The University of Texas at Austin at all times.

Viewing Note: The CAD (DWG) files will not open in a browser, you have to save them to the your desktop.

Division 23 - Detail Drawings

SectionTitleCAD FilesPDF
M-23-1-5TYPICAL BRANCH DUCT WITH 45° CLINCH TAP DETAILM-23-1-5M-23-1-5
M-23-1-6TYPICAL BRANCH DUCT WITH CONICAL TAP DETAILM-23-1-6M-23-1-6
M-23-1-10LINED SOUND PLENUMM-23-1-10M-23-1-10
M-23-1-19CEILING FIRE DAMPER DETAILM-23-1-19M-23-1-19
M-23-1-20FIRE DAMPER INSTALLATION DETAILM-23-1-20M-23-1-20
M-23-1-28LATERAL MIXING TEE DETAILM-23-1-28M-23-1-28
M-23-1-32VAV FUME HOOD DETAIL (BUILDINGS WITH PNEUMATIC CONTROLS)M-23-1-32M-23-1-32
M-23-3-1WATER PIPING HANGERS AND SUPPORTS DETAILM-23-3-1M-23-3-1
M-23-3-2PIPE SLEEVE DETAILM-23-3-2M-23-3-2
M-23-3-3WATER PIPING HANGERS AND SUPPORTS DETAILM-23-3-3M-23-3-3
M-23-3-4PIPE THRU ROOF DETAILM-23-3-4M-23-3-4
M-23-4-2STEAM HEATING COIL PIPING DIAGRAM REHEAT POSITIONM-23-4-2M-23-4-2
M-23-4-2-ASTEAM HEATING COIL PIPING DIAGRAM PREHEAT POSITIONM-23-4-2-AM-23-4-2-A
M-23-4-8PIPING SCHEMATIC: STEAM COILM-23-4-8M-23-4-8
M-23-4-10SERIES CHILLED WATER COIL PIPING DIAGRAMM-23-4-10M-23-4-10
M-23-4-17CHILLED WATER INSULATION DETAIL AT AHU COILM-23-4-17M-23-4-17
M-23-4-18CONDENSATE DRAIN DETAILM-23-4-18M-23-4-18
M-23-4-19SCHEMATIC AIR BLEED/TEST VALVE SCHEMATICM-23-4-19M-23-4-19
M-23-4-23PIPING DIAGRAM: STEAM TRAP AT END OF MAINM-23-4-23M-23-4-23
M-23-4-25INSTRUMENT TAPS IN PIPING DETAILM-23-4-25M-23-4-25
M-23-4-27SPLIT CHILLED WATER COIL PIPING DIAGRAMM-23-4-27M-23-4-27
M-23-4-31INSTRUMENTATION & MISCELLANEOUS PIPING TAPS (FOR WATER BELOW AMBIENT TEMP)M-23-4-31M-23-4-31
M-23-4-34COOLING COIL MOUNTING DETAILSM-23-4-34M-23-4-34
M-23-5-8STEAM CONDENSATE TANK & DUPLEX PUMP DETAILM-23-5-8M-23-5-8
M-23-5-10END SUCTION PUMP PIPING DETAILM-23-5-10M-23-5-10
M-23-6-1AHU - FRONT ACCESS FILTER HOUSING DETAILM-23-6-1M-23-6-1
M-23-8-3MIXING LATERAL CONTROL DIAGRAMM-23-8-3M-23-8-3
M-23-8-6LOW TEMPERATURE SAFETY MOUNTING DETAILM-23-8-6M-23-8-6
M-23-8-22THERMOSTAT & DAMPER CONTROLLER ASSEMBLY DETAILM-23-8-22M-23-8-22
M-23-8-23THERMOSTAT & DAMPER CONTROLLER ASSEMBLY DETAILM-23-8-23M-23-8-23