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ASTM F856-97(2018)

(Practice)

Standard Practice for Mechanical Symbols, Shipboard—Heating, Ventilation, and Air Conditioning (HVAC)

Standard Practice for Mechanical Symbols, Shipboard—Heating, Ventilation, and Air Conditioning (HVAC)

SIGNIFICANCE AND USE
2.1 When symbolic representation is required for an item not covered in this standard, the character of the symbol shall be adequately identified and shall be subject to one interpretation only. If necessary, a note shall be attached to the symbol for further clarity.  
2.2 Symbolic representation does not require exact or scale layouts of the actual system. Therefore, the symbols may be used in all views of the system layout.
SCOPE
1.1 This practice covers symbols used on heating, ventilation, and air conditioning (HVAC) detailed engineering drawings.  
1.2 These symbols may be useful on contract and preliminary design drawings.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Historical
Publication Date
31-Aug-2018
ICS
01.080.20 - Graphical symbols for use on specific equipment
91.140.10 - Central heating systems
91.140.30 - Ventilation and air-conditioning systems
Technical Committee
F25 - Ships and Marine Technology
Drafting Committee
F25.11 - Machinery and Piping Systems
Current Stage
Ref Project

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ASTM F856-97(2018) - Standard Practice for Mechanical Symbols, Shipboard—Heating, Ventilation, and Air Conditioning (HVAC)ASTM F856-97(2018) - Standard Practice for Mechanical Symbols, Shipboard—Heating, Ventilation, and Air Conditioning (HVAC)
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REDLINE ASTM F856-97(2018) - Standard Practice for Mechanical Symbols, Shipboard—Heating, Ventilation, and Air Conditioning (HVAC)REDLINE ASTM F856-97(2018) - Standard Practice for Mechanical Symbols, Shipboard—Heating, Ventilation, and Air Conditioning (HVAC)
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F856 − 97 (Reapproved 2018) An American National Standard
Standard Practice for
Mechanical Symbols, Shipboard—Heating, Ventilation, and
1
Air Conditioning (HVAC)
ThisstandardisissuedunderthefixeddesignationF856;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
CCW = counter clockwise
CE = convection heater, electric
1.1 This practice covers symbols used on heating,
CF = centrifugal fan
ventilation, and air conditioning (HVAC) detailed engineering
CS = convection heater, steam
drawings.
CW = clockwise
1.2 These symbols may be useful on contract and prelimi-
EH = turret heater, electric
nary design drawings.
EP = duct preheater, electric
ER = duct reheater, electric
1.3 This international standard was developed in accor-
EU = electric unit heater
dance with internationally recognized principles on standard-
F = filter
ization established in the Decision on Principles for the
FA = flame arrester
Development of International Standards, Guides and Recom-
FCA = fan coil assembly
mendations issued by the World Trade Organization Technical
FCU = fan coil unit
Barriers to Trade (TBT) Committee.
G = grille
GC = gravity cooling coil
2. Significance and Use
H = humidistat, humidifier
2.1 When symbolic representation is required for an item
L = louver
not covered in this standard, the character of the symbol shall M = motor
MFD = manual fire damper
be adequately identified and shall be subject to one interpreta-
NE = natural exhaust
tion only. If necessary, a note shall be attached to the symbol
NS = natural supply
for further clarity.
R = return air
2.2 Symbolic representation does not require exact or scale
RO = remote operated
layouts of the actual system. Therefore, the symbols may be
SFD = solenoid fire damper
used in all views of the system layout.
SP = preheater, steam
SR = reheater, steam
3. Abbreviations
SU = steam unit heater
3.1 The abbreviations (for use only in this practice) are T = thermostat
TE = tempered air, electric
defined as follows:
TS = tempered air, steam
AF = axial fan
U = undercut
AFD = automatic fire damper with manual override UC = unit cooler
BD = balance damper V = volume, volumetric
CC = cooling coil VC = volume control
4. Illustrations
1
This practice is under the jurisdiction of ASTM Committee F25 on Ships and
4.1 Illustrations for HVAC symbols are given in Figs. 1-4.
Marine Technology and is the direct responsibility of Subcommittee F25.11 on
Machinery and Piping Systems. 5. Keywords
Current edition approved Sept. 1, 2018. Published October 2018. Originally
5.1 air conditioning; design symbols; engineering symbols;
approved in 1983. Last previous edition approved in 2014
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F856 − 97 (Reapproved 2014) F856 − 97 (Reapproved 2018)An American National Standard
Standard Practice for
Mechanical Symbols, Shipboard—Heating, Ventilation, and
1
Air Conditioning (HVAC)
This standard is issued under the fixed designation F856; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
1.1 This practice covers symbols used on heating, ventilation, and air conditioning (HVAC) detailed engineering drawings.
1.2 These symbols may be useful on contract and preliminary design drawings.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Significance and Use
2.1 When symbolic representation is required for an item not covered in this standard, the character of the symbol shall be
adequately identified and shall be subject to one interpretation only. If necessary, a note shall be attached to the symbol for further
clarity.
2.2 Symbolic representation does not require exact or scale layouts of the actual system. Therefore, the symbols may be used
in all views of the system layout.
3. Abbreviations
3.1 The abbreviations (for use only in this practice) are defined as follows:
AF = axial fan
AFD = automatic fire damper with manual override
BD = balance damper
CC = cooling coil
CCW = counter clockwise
CE = convection heater, electric
CF = centrifugal fan
CS = convection heater, steam
CW = clockwise
EH = turret heater, electric
EP = duct preheater, electric
ER = duct reheater, electric
EU = electric unit heater
F = filter
FA = flame arrester
FCA = fan coil assembly
FCU = fan coil unit
G = grille
GC = gravity cooling coil
H = humidistat, humidifier
1
This practice is under the jurisdiction of ASTM Committee F25 on Ships and Marine Technology and is the direct responsibility of Subcommittee F25.11 on Machinery
and Piping Systems.
Current edition approved Aug. 1, 2014Sept. 1, 2018. Published September 2014October 2018. Originally approved in 1983. Last previous edition approved in 20082014
as F856 – 97 (2008).(2014). DOI: 10.1520/F0856-97R14.10.1520/F0856-97R18.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F856 − 97 (2018)
L = louver
M = motor
MFD = manual fire damper
NE = natural exhaust
NS = natural supply
R = return air
RO = remote operated
SFD = solenoid fire damper
SP = preheater, s
...

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