ASHRAE Standard 217 2020

$38.46

ASHRAE Standard 217-2020 — Rail and Mass Transit Facilities (ANSI Approved)

Published By	Publication Date	Number of Pages
ASHRAE	2020	44

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Category: ASHRAE

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Description

ASHRAE Standard 217 provides minimum ventilation requirements for ventilation systems within enclosed transportation facilities during non-emergency operating conditions.

PDF Catalog

PDF Pages	PDF Title
1	ANSI/ASHRAE Standard 217-2020
3	CONTENTS
4	FOREWORD 1. PURPOSE 2. SCOPE 2.1 This standard applies to enclosed transportation facilities consisting of road tunnels, railway tunnels, mass transit tunnels, and mass transit stations. 2.2 This standard provides criteria for non-emergency ventilation. 2.3 This standard addresses the design, construction, testing, commissioning, operation, and maintenance requirements of non-emergency ventilation systems and equipment. 3. LIMITATIONS 3.1 This standard is not applicable for non-emergency ventilation during construction. 3.2 This standard is not applicable to ancillary HVAC systems serving nonpublic areas of enclosed transportation facilities. 3.3 This standard does not address non-emergency ventilation requirements for the following enclosed transportation facilities, which are addressed by other ASHRAE standards such as ANSI/ASHRAE Standard 62.1, Ventilation for Acceptable Indoor Air Qua… 3.4 This standard does not address ventilation requirements for emergency conditions in enclosed transportation facilities. Such requirements are addressed by NFPA standards and other national and international documents. 3.5 This standard does not address power supply and other electrical requirements. 3.6 This standard does not apply to enclosed transportation facilities designed, constructed, or renovated before the adoption date of this section.
5	3.7 This standard does not apply to rail systems that exclusively serve freight, underground mine workings, or other self-contained commercial operations. 4. DEFINITIONS AND ABBREVIATIONS 4.1 Definitions
6	4.2 Abbreviations
7	5. ROAD TUNNELS 5.1 General 5.2 Air Quality
9	5.3 Thermal Comfort
10	5.4 Air Velocity 5.5 Sound and Vibration
11	5.6 Equipment and Controls
12	6. RAIL TUNNELS 6.1 General 6.2 Air Quality. Air quality shall be controlled within the tunnel and in the vicinity of shafts and portals at all times. The method of control shall be consistent with the tunnel use and expected sources of contamination. The ventilation design sha…
13	6.3 Air Temperature. Tunnels and their ventilation systems shall be designed to control air temperatures resulting from train operations and the functioning of tunnel systems.
14	6.4 Pressure Transients. Rail tunnels and their ventilation systems shall be designed to control air pressure transients resulting from train operations.
15	6.5 Sound and Vibration. Tunnel ventilation systems shall be designed with the means to control the impact of sound and vibration resulting from the operation of fans and associated equipment on the tunnel and outside environment. 6.6 Equipment and Controls. Ventilation equipment and associated controls shall be provided where mechanical ventilation is required to maintain pressure, temperature, or air quality criteria.
16	7. MASS TRANSIT TUNNELS 7.1 General 7.2 Air Quality. Mass transit tunnels and their ventilation systems shall be designed to maintain air quality for the benefit of onboard passengers during train operations. The air quality in tunnel workplace conditions is governed by federal regulat…
17	7.3 Thermal Comfort. The ventilation systems in mass transit tunnels shall control tunnel air conditions to preserve the comfort level of onboard passengers and to keep train climate control systems and tunnel electrical systems functional. High-temp…
18	7.4 Pressure Transients. Mass transit tunnels shall be designed to minimize onboard passenger exposure to rapid air pressure changes during train travel. Rapid air pressure change criteria are not applicable to tunnel maintenance/repair activities th…
19	7.5 Sound and Vibration. Sound levels shall be controlled within mass transit tunnels for the benefit of onboard passengers; for the benefit of the public, sound levels shall be controlled at ambient air interfaces, such as tunnel portals, tunnel exi… 7.6 Equipment and Controls. Refer to Section 9 for equipment requirements. 8. MASS TRANSIT STATIONS 8.1 General. This section applies to the non-emergency ventilation of mass transit stations connected to a fixed guideway upon where metro, light rail, and monorail trains operate.
20	8.2 Air Quality
21	8.3 Thermal Comfort 8.4 Station Ventilation
22	8.5 Sound and Vibration
23	9. SYSTEM, EQUIPMENT, AND COMPONENTS 9.1 General
24	9.2 Ventilation Ducts and Plenums 9.3 Fans and Flow Control Equipment
25	9.4 Dampers. The type of damper depends on its application.
27	9.5 Equipment Monitoring Devices 9.6 Sound Attenuation Devices 10. CONSTRUCTION, TESTING, AND COMMISSIONING 10.1 General
28	10.2 Testing and Commissioning Plan
29	10.3 Factory Acceptance Testing
30	10.4 Site Acceptance Testing
31	10.5 Site Systems Integration Test (SSIT) 11. OPERATIONS AND MAINTENANCE 11.1 General. The requirements of this section are in addition to maintenance requirements applicable to HVAC systems as required by ANSI/ASHRAE/ACCA Standard 180, Standard Practice for Inspection and Maintenance of Commercial Building HVAC Systems 1… 11.2 Operations and Maintenance
32	11.3 Operations 11.4 Maintenance
33	11.5 Vibration. The ventilation system equipment and its associated components shall be continuously monitored for vibration. Periodic vibration testing shall be carried out on each rotating piece of equipment or component, including fan and motor be… 11.6 Spare Parts. Spare parts shall be specified in the O&M manual, identical to the parts installed, and certified as fit for their intended use. Quantities provided shall be based on reliability requirements, replacement lead time, and required rep… 11.7 Equipment Accessibility. Ventilation system equipment and its associated components shall be accessible for the performance of preventive maintenance and corrective maintenance. Space shall be provided for maintenance of each piece of equipment … 11.8 Alterations. Ventilation system design, operations, and maintenance shall be reevaluated when alterations to vehicular facilities are made. 11.9 Operations and Maintenance Manual
34	11.10 Operations and Maintenance of Road Tunnels. Road tunnel O&M requirements shall be developed based on tunnel management, either supervised or unsupervised. 11.11 Operations and Maintenance of Rail Tunnels 11.12 Operations and Maintenance of Mass Transit Tunnels. Mass transit tunnel O&M requirements shall account for ventilation equipment that will be exposed to metal dust resulting from train operation and pressure pulses.
35	11.13 Operations and Maintenance of Mass Transit Stations. Mass transit station O&M requirements shall account for ventilation equipment that will be exposed to metal dust resulting from train operation and pressure pulses. 12. NORMATIVE REFERENCES
36	INFORMATIVE APPENDIX A: EXPLANATORY MATERIAL
37	INFORMATIVE APPENDIX B: MAINTENANCE REQUIREMENTS
38	INFORMATIVE APPENDIX C: PREVENTIVE MAINTENANCE OF VENTILATION SYSTEMS C1. additional IMPORTANT maintenance considerations for ventilation system equipment and its associated components C1.1 Maintenance of Ventilation Fans for Tunnel Ventilation
39	C1.2 Damper Maintenance. To ensure a proper and continuous operation of all dampers required in the ventilation systems, it’s recommended that the following be developed and established:
40	C1.3 Filter Maintenance. Filters require cleaning and/or replacement in accordance with the manufacturer’s recommendations, operational environment, and operational experience. C1.4 Detection System and Instrumentation Maintenance C1.5 Air Duct Maintenance
42	INFORMATIVE APPENDIX D: INFORMATIVE REFERENCES