All terms listed alphabetically
a |
Variable name |
---|---|
absorption |
Cooling process using energy from heat source such as hot water |
ac |
Relating to alternating current electricity |
ac-elec |
Alternating current electricity |
ac-freq |
Frequency of alternating current |
active |
Working, operative, effective |
active-power |
Active power or real power |
ahu |
Air handling unit |
ahu-chilledWaterCooling |
Cooling using transfer of heat to chilled water |
ahu-dxCooling |
Cooling using refrigerant vapar expansion and compression |
ahu-elecHeating |
Heating by the conversion of electrical energy |
ahu-gasHeating |
Heating by the combustion of natural gas |
ahu-hotWaterHeating |
Heating using energy of hot water |
ahu-steamHeating |
Heating using energy of steam |
ahuCoolingProcess |
Method used to cool air for conditioning spaces |
ahuHeatingProcess |
Method used to heat air for conditioning spaces |
ahuRef |
AHU which supplies air to an equipment or space |
ahuZoneDelivery |
AHU delivery method of conditioned air to the zone |
air |
The mixture of gases which surrounds the earth |
air-temp |
Dry bulb temperature |
airCooling |
Cooling by dissipating heat into the surrounding air |
airQuality |
Measurement of contaminants in the air |
angle |
Measurement of the relative difference in direction between two vectors or phasors |
apparent |
Perceived quantity |
apparent-power |
Apparent power is perceived magnitude of power due to the combination of active and reactive power |
area |
Area of a shape or floor space |
atmospheric |
Related to the atmosphere of the earth |
atmospheric-pressure |
Barometric pressure exerted by the weight of the atmosphere |
b |
Variable name |
barometric |
Relating atmospheric pressure |
baseUri |
Base URI for normalizing relative URIs |
battery |
Device used to store electric energy |
blowdown |
Removal from container or pipe |
blowdown-water |
Water expelled from a system to remove mineral build up |
boiler |
Boilers generate hot water or steam for heating |
boiler-gasHeating |
Heating by the combustion of natural gas |
boiler-oilHeating |
Heating by the combustion of fuel oil |
boilerHeatingProcess |
Method used to heat water in a boiler |
bool |
Boolean value |
building |
Site which is a building |
bypass |
Pipe used to bypass an equipment |
c |
Variable name |
centrifugal |
Compression via a continuous flow of fluid through an impeller |
chilled |
Cooled |
chilled-water |
Water used for HVAC cooling |
chilled-water-plant |
Plant used to generate chilled water for cooling |
chilledBeamZone |
AHU supplies air to chilled beam terminal units |
chilledWaterCooling |
Cooling using transfer of heat to chilled water |
chiller |
Device to remove heat via a vapor compression or an absorption refrigeration cycle |
chiller-absorption |
Cooling process using energy from heat source such as hot water |
chiller-airCooling |
Cooling by dissipating heat into the surrounding air |
chiller-centrifugal |
Compression via a continuous flow of fluid through an impeller |
chiller-condenserCooling |
Removal of heat through the process of water condensation |
chiller-reciprocal |
Piston compressor driven by a crankshaft |
chiller-rotaryScrew |
Rotary screw compression |
chillerCoolingProcess |
Processed used to remove heat from refrigerant |
chillerMechanism |
Primary mechanism of chiller |
closedLoop |
Working fluid is kept separate from fluid used for heat transfer into the atmosphere |
cloudage |
Percentage of sky obscurred by clouds |
cmd |
Point is a command, actuator, AO/BO |
co2 |
Carbon dioxide level |
coldDeck |
Duct carries air for cooling |
condenser |
Device or related to process of condensation |
condenser-water |
Water used used to remove heat through condensation |
condenserCooling |
Removal of heat through the process of water condensation |
conduit |
Duct, pipe, or cable to convey a substance or phenomenon |
conveys |
What type of substance or phenomenon conveyed by a conduit |
cooling |
Associated with a cooling process |
cooling-process |
Processed used to cool a substance |
coolingCapacity |
Measurement of a chiller ability to remove heat measured |
coolingLoop |
Open or closed loop |
coolingOnly |
Device without heating |
coolingOnly-vav |
Cooling only VAV without fan or reheat |
coolingTower |
Device used to transfer waste heat into the atmosphere |
coord |
Geographic coordinate in latitude/longitude formatted as |
cur |
Related to a current value |
cur-point |
Point with support to report a "real-time" current value |
curErr |
Error description when curStatus indicates error condition |
curStatus |
Status of point's current value reading |
curVal |
Current value of a point |
current |
Movement of fluid or electricity |
current-angle |
AC current phase angle |
current-imbalance |
Current phase imbalance in a multiphase AC system |
current-magnitude |
Magnitude of electrical current |
current-thd |
Total harmonic current distortion |
d |
Variable name |
date |
ISO 8601 date as year, month, day |
dateTime |
ISO 8601 timestamp followed by timezone identifier |
daytime |
Time between sunrise and sunset |
dc |
Relating to direct current electricity |
dc-elec |
Direct current electricity |
def |
Create a new definition bound to the given symbol |
dewPoint |
Dew point temperature at which water vapor will form dew |
dict |
Map of name/value tag pairs |
directZone |
AHU supplies air directly to the zone |
direction |
Compass direction measured in degrees |
dis |
Display name for an entity |
discharge |
Duct with air leaving an equipment |
doc |
Documentation in simplified flavor of markdown |
domestic |
For human use |
domestic-water |
Tap water for drinking, washing, cooking, and flushing of toliets |
dualDuct |
Two ducts |
duct |
Conduit used to convey air for HVAC |
ductConfig |
Ductwork configuration |
ductDeck |
Cold, hot, or neutral deck |
ductSection |
Equipment section of ductwork |
duration |
Number with a unit of time |
dxCooling |
Cooling using refrigerant vapar expansion and compression |
e |
Variable name |
elec |
Associated with electricity, electric charge |
elec-current |
Electrical current |
elec-energy |
Electrical energy consumed |
elec-meter |
Electricity meter |
elec-power |
Electrical energy consumed per unit time |
elec-volt |
Electrical voltage, potential difference |
elecHeating |
Heating by the conversion of electrical energy |
energy |
Measure of ability to do work |
entering |
Pipe conveys fluid into an equipment |
entity |
Top-level dicts with a unique identifier |
enum |
Defines an eumeration of string keys |
equip |
Equipment asset |
equipRef |
Reference to equip which contains this entity |
exhaust |
Duct used to expel air back outside |
f |
Variable name |
f-flow-meter |
Meter to measure flow rate and total volume of fluid |
f-pipe |
Pipe which conveys fluid |
f-tank |
Tank which stores fluid |
f-thermal-meter |
Meter to measure energy transfer via fluid |
fanPowered |
Device with a fan |
fanPowered-vav |
VAV contains a fan with reheat |
feature |
Feature namespace of definitions formatted as |
feelsLike |
Apparent temperature perceived when considering humidity, wind chill, and heat index |
fileExt |
Filename extension such as "csv" |
filetype |
File format type definition |
floor |
Storey of a building |
flow |
Measure of volumetric flow of fluid |
flow-meter |
Meter to measure flow rate and total volume of fluid |
fluid |
Liquid or gas |
freq |
Occurrences per unit time |
fuelOil |
Petroleum based oil burned for energy |
g |
Variable name |
gas |
Substance with neither definite volume nor shape |
gasHeating |
Heating by the combustion of natural gas |
gasoline |
Petroleum derived liquid used as a fuel source |
geoAddr |
Free form street address |
geoCity |
Geographic city or locality name |
geoCoord |
Geographic coordinate as |
geoCountry |
Geographic country as ISO 3166-1 two letter code |
geoCounty |
Geographic subdivision of US state |
geoElevation |
Elevation above sea-level of the location |
geoPlace |
Geographic place |
geoPostalCode |
Geographic postal code |
geoState |
State or province name |
geoStreet |
Geographic street address and name |
grid |
Two dimension table of columns and rows |
h |
Variable name |
heatExchanger |
Device used to transfer heat between two fluids |
heating |
Associated with a heating process |
heating-process |
Processed used to heat a substance |
his |
Related to historization of data |
his-point |
Historized point with a history log of timestamp/value pairs |
hisErr |
Error description when hisStatus indicates error condition |
hisMode |
Indicates the way that history data is collected for a point |
hisStatus |
Status of point's history collection or synchronization |
hisTotalized |
Indicates values which are a continuous stream of totalization |
hot |
Having high degree of heat |
hot-water |
Hot water used for HVAC heating or supply to hot taps |
hot-water-boiler |
Boiler which outputs hot water |
hot-water-plant |
Plant used to generate hot water for heating |
hotDeck |
Duct carries air for heating |
hotWaterHeating |
Heating using energy of hot water |
humidity |
Percent relative humidity |
hvac |
Heating, ventilation, and air conditioning |
hvac-zone-space |
Zone related to conditioning of a space's air temperature and quality |
i |
Variable name |
ice |
Water in its solid form |
id |
Defines the unique identifier of an entity in system using a Ref value type |
imbalance |
Lacking balance |
includes |
List of library names to include |
inlet |
Duct with air entering an equipment |
inputs |
Input to a process, usually energy source |
int |
Unitless integer number |
irradiance |
Energy received at a surface by area |
is |
Defines one or more supertypes of a subtyping relationship |
j |
Variable name |
k |
Variable name |
l |
Variable name |
leaving |
Pipe conveys fluid out of an equipment |
level |
Fill level of a vessel containing a fluid where 0% is empty and 100% if filled |
lib |
Library module of symbolic definitions |
light |
Electromagnetic radiation in the visibile spectrum |
lighting |
Systems associated with illumination in the built environment |
lighting-zone-space |
Zone related to lighting system |
liquid |
Substance with definite volume but takes the shape of its container |
list |
Ordered list of zero or more values |
m |
Variable name |
magnitude |
Size or extent |
makeup |
Restore soemthing missed or lost |
makeup-water |
Water used used to makeup water loss through leaks, evaporation, or blowdown |
mandatory |
Requires that the marker be applied to dicts which use the marker's subtypes |
marker |
Marker labels a dict with typing information |
maxVal |
Inclusive minimum for a numeric value |
meter |
Equipment to meter a substance or electricity |
mime |
Mime type formatted as type/subtype |
minVal |
Inclusive maximum for a numeric value |
mixed |
Duct where fresh outside and return air is mixed together |
mixin |
Marker added to a def to indicate inclusive subtyping |
multiZone |
AHU discharge air is split into a duct per zone |
n |
Variable name |
na |
Not available used to indicate invalid or missing data |
naturalGas |
Fossil fuel energy source consisting largely of methane and other hydrocarbons |
neutralDeck |
Duct carries air which by-passes both heating and cooling coils |
notInherited |
Marker applied to a def to indicate that is not inherited into subtype definitions |
number |
Integer or floating point numbers annotated with an optional unit |
o |
Variable name |
of |
Value type of a collection or reference |
oilHeating |
Heating by the combustion of fuel oil |
openLoop |
Uses working fluid itself for evaporation into the atmosphere |
outputs |
Output of a process |
outside |
Duct to access fresh outside air |
p |
Variable name |
p-point |
Point which measures or controls phenomenon |
p-q-point |
Point which measures or controls phenomenon |
parallel |
Circuit with multiple paths of flow |
pf |
Electrical power factor |
phenomenon |
Aspect of scientific interest with measurable quantities |
pipe |
Conduit used to convey a fluid |
pipeSection |
Equipment section of piping |
plant |
Central plant used to generate a substance for a process |
pm10 |
Particulate Matter 10 |
pm25 |
Particulate Matter 2.5 |
point |
Data point such as a sensor or actuator |
pointKind |
Point value type |
pointType |
Classifies the point as a sensor, command, or setpoint |
power |
Energy consumed per unit time |
precipitation |
Amount of atmospheric water vapor fallen including rain, sleet, snow, and hail |
prefUnit |
Defines a preferred unit to be used with a quantity |
pressure |
Measure of force applied |
pressureDependent |
VAV damper modulates to control space temp |
pressureIndependent |
VAV damper or a control valve that modulates to maintain desired flow setpoint |
primaryFunction |
Primary function of building as US Energy Star key |
process |
Industrial or HVAC process |
q |
Variable name |
q-point |
Point which measures or controls quantity |
quality |
Quantity measured against standard metric |
quantity |
Measurable property of a substance or phenomenon |
quantityOf |
Associates quantity as measurement of a phenomenon |
r |
Variable name |
reactive |
Relating to reactance |
reactive-power |
Reactive power or imaginary power |
reciprocal |
Piston compressor driven by a crankshaft |
ref |
Reference to an entity |
refrig |
Fluid used in refrigeration and heat exchange |
return |
Duct returning air back to equipment |
room |
Enclosed room of a building |
rotaryScrew |
Rotary screw compression |
s |
Variable name |
s-duct |
Duct in equipment section |
s-f-pipe |
Pipe in equipment section |
s-pipe |
Pipe in equipment section |
scalar |
Scalar is an atomic value kind |
sensor |
Point is a sensor, input, AI/BI |
series |
Circuit with single path of flow |
singleDuct |
One single duct |
site |
Site is a geographic location of the built environment |
siteRef |
Site which contains the entity |
solar |
Relating to energy from the sun |
solar-irradiance |
Energy received on surface of the earth from the sun |
solid |
Substance with definite shape and volume |
sp |
Point is a setpoint, soft point, internal control variable, schedule |
space |
Space is a three-dimensional volume in the built environment |
spaceRef |
Reference to space which contains this entity |
speed |
Distance per unit time |
steam |
Water in its gas form |
steam-boiler |
Boiler which outputs steam |
steam-plant |
Plant used to generate steam for heating |
steamHeating |
Heating using energy of steam |
stores |
What is stored by an equipment |
str |
Unicode string of characters |
substance |
Matter in one the three states solid, liquid, or gas |
symbol |
Symbol to a def |
t |
Variable name |
tank |
Tank used to store a substance for temporary holding |
temp |
Temperature - measure of hot and cold |
thd |
Total harmonic distortion |
thermal |
Related to energy of heat |
thermal-meter |
Meter to measure energy transfer via fluid |
time |
ISO 8601 time as hour, minute, seconds |
transient |
Indicates a value tag which should not be persisted |
tripleDuct |
Three ducts |
tvoc |
Total volatile organic compound (TVOC) |
tz |
Timezone identifier from standard timezone database |
u |
Variable name |
unit |
Unit identifier from standard unit database |
uri |
Unverisal resource identifier |
v |
Variable name |
val |
Data value type |
var |
Variable name |
vav |
Variable air volume terminal unit |
vav-elecHeating |
Heating by the conversion of electrical energy |
vav-hotWaterHeating |
Heating using energy of hot water |
vav-parallel |
VAV pulls air from outside the primary air flow |
vav-series |
VAV pulls air from the primary air flow |
vav-steamHeating |
Heating using energy of steam |
vavAirCircuit |
How does the VAV pull in air |
vavModulation |
How does VAV modulate the temp based on duct pressure |
vavReheat |
Method used by VAV to reheat air |
vavZone |
AHU supplies air to VAV terminal units |
version |
Version string formatted as decimal integers separated by a dot |
visibility |
Distance at which light can be clearly discerned |
volt |
Electrical voltage, potential difference |
volt-angle |
AC voltage phase angle |
volt-imbalance |
AC voltage phase imbalance |
volt-magnitude |
Magnitude of electrical voltage |
w |
Variable name |
water |
Water in its liquid form |
weather |
Associated with atmospheric air or phenomenon |
weatherCond |
Enumeration of weather conditions |
weatherStation |
Weather station |
webBulb |
Wet bulb air temperature |
wikipedia |
Hyperlink to the subject's page on Wikipedia |
wind |
Flow of air on surface of the Earth |
wind-direction |
Compass direction from which wind originates |
wind-speed |
Wind flow speed |
wire |
Cabling used to convey electricity |
writable |
Related to data which can written |
writable-point |
Point with writable output using 16-level priority array |
writeErr |
Error description when writeStatus indicates error condition |
writeLevel |
Current priority level for writeVal as number between 1 and 17 |
writeStatus |
Current status of a writable point output |
writeVal |
Current desired value to write to output |
x |
Variable name |
xstr |
Extended string - type name and string value encoding |
y |
Variable name |
yearBuilt |
Original year of construction as four digit year such as 1980 |
z |
Variable name |
zone |
Related to spaces from a system perspective |
zone-space |
Space associated with a specific system |