ph |
Project Haystack core definitions |
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phIoT |
Project Haystack definitions for Internet of Things |
phScience |
Project Haystack scientific definitions |
equip |
Equipment asset |
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ahu |
Air handling unit |
battery |
Device used to store electric energy |
boiler |
Boilers generate hot water or steam for heating |
hot-water-boiler |
Boiler which outputs hot water |
steam-boiler |
Boiler which outputs steam |
chiller |
Device to remove heat via a vapor compression or an absorption refrigeration cycle |
conduit |
Duct, pipe, or cable to convey a substance or phenomenon |
duct |
Conduit used to convey air for HVAC |
s-duct |
Duct in equipment section |
pipe |
Conduit used to convey a fluid |
f-pipe |
Pipe which conveys fluid |
s-f-pipe |
Pipe in equipment section |
s-pipe |
Pipe in equipment section |
s-f-pipe |
Pipe in equipment section |
wire |
Cabling used to convey electricity |
coolingTower |
Device used to transfer waste heat into the atmosphere |
heatExchanger |
Device used to transfer heat between two fluids |
meter |
Equipment to meter a substance or electricity |
elec-meter |
Electricity meter |
flow-meter |
Meter to measure flow rate and total volume of fluid |
f-flow-meter |
Meter to measure flow rate and total volume of fluid |
thermal-meter |
Meter to measure energy transfer via fluid |
f-thermal-meter |
Meter to measure energy transfer via fluid |
plant |
Central plant used to generate a substance for a process |
chilled-water-plant |
Plant used to generate chilled water for cooling |
hot-water-plant |
Plant used to generate hot water for heating |
steam-plant |
Plant used to generate steam for heating |
tank |
Tank used to store a substance for temporary holding |
f-tank |
Tank which stores fluid |
vav |
Variable air volume terminal unit |
coolingOnly-vav |
Cooling only VAV without fan or reheat |
fanPowered-vav |
VAV contains a fan with reheat |
weatherStation |
Weather station |
point |
Data point such as a sensor or actuator |
cur-point |
Point with support to report a "real-time" current value |
his-point |
Historized point with a history log of timestamp/value pairs |
p-point |
Point which measures or controls phenomenon |
p-q-point |
Point which measures or controls phenomenon |
q-point |
Point which measures or controls quantity |
p-q-point |
Point which measures or controls phenomenon |
writable-point |
Point with writable output using 16-level priority array |
site |
Site is a geographic location of the built environment |
building |
Site which is a building |
weatherStation |
Weather station |
space |
Space is a three-dimensional volume in the built environment |
building |
Site which is a building |
floor |
Storey of a building |
room |
Enclosed room of a building |
zone-space |
Space associated with a specific system |
hvac-zone-space |
Zone related to conditioning of a space's air temperature and quality |
lighting-zone-space |
Zone related to lighting system |
terms |
All terms listed alphabetically |
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tags |
All tag terms listed alphabetically |
conjuncts |
All conjunct terms listed alphabetically |
generics |
All generic terms listed alphabetically |
feature |
Feature namespace of definitions formatted as |
filetype |
File format type definition |
lib |
Library module of symbolic definitions |
marker |
Marker labels a dict with typing information |
val |
Data value type |
phenomenon |
Aspect of scientific interest with measurable quantities |
quantity |
Measurable property of a substance or phenomenon |
process |
Industrial or HVAC process |
var |
Variable name |