ASTM F856-97

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

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.

General Information

• Status: Historical
• Publication Date: 09-Nov-1997
• ICS: 01.080.20 - Graphical symbols for use on specific equipment
• ICS: 91.140.10 - Central heating systems
• ICS: 91.140.30 - Ventilation and air-conditioning systems
• Technical Committee: F25 - Ships and Marine Technology
• Drafting Committee: F25.11 - Machinery and Piping Systems

Relations

• Replaced By: ASTM F856-97(2004) - Standard Practice for Mechanical Symbols, Shipboard—Heating, Ventilation, and Air Conditioning (HVAC)
• Effective Date: 01-May-2004

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
An American National Standard
Designation: F 856 – 97
Standard Practice for
Mechanical Symbols, Shipboard—Heating, Ventilation, and
Air Conditioning (HVAC)
This standard is issued under the fixed designation F 856; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope EP = duct preheater, electric,
ER = duct reheater, electric,
1.1 This practice covers symbols used on heating, ventila-
EU = electric unit heater,
tion, and air conditioning (HVAC) detailed engineering draw-
F = filter,
ings.
FA = flame arrester,
1.2 These symbols may be useful on contract and prelimi-
FCA = fan coil assembly,
nary design drawings.
FCU = fan coil unit,
2. Significance and Use G = grille,
GC = gravity cooling coil,
2.1 When symbolic representation is required for an item
H = humidistat, humidifier,
not covered in this standard, the character of the symbol shall
L = louver,
be adequately identified and shall be subject to one interpreta-
M = motor,
tion only. If necessary, a note shall be attached to the symbol
MFD = manual fire damper,
for further clarity.
NE = natural exhaust,
2.2 Symbolic representation does not require exact or scale
NS = natural supply,
layouts of the actual system. Therefore, the symbols may be
R = return air,
used in all views of the system layout.
RO = remote operated,
3. Abbreviations
SFD = solenoid fire damper,
SP = preheater, steam,
3.1 The abbreviations (for use only in this practice) are
SR = reheater, steam,
defined as follows:
SU = steam unit heater,
AF = axial fan,
T = thermostat,
AFD = automatic fire damper with manual override,
TE = tempered air, electric,
BD = balance damper,
TS = tempered air, steam,
CC = cooling coil,
U = undercut,
CCW = counter clockwise,
UC = unit cooler,
CE = convection heater, electric,
V = volume, volumetric, and
CF = centrifugal fan,
VC = volume control.
CS = convection heater, steam,
CW = clockwise,
4. Illustrations
EH = turret heater electric,
4.1 Illustrations for HVAC symbols are given in Figs. 1-4.
1 5. Keywords
This practice is under the jurisdiction of ASTM Committee F-25 on Ships and
Marine Technology and is the direct responsibility of Subcommittee F25.11 on
5.1 air conditioning; design symbols; engineering symbols
...