Abbreviations
Based on VDI 3814
This collection is intended to simplify finding abbreviations in building automation. The abbreviations largely follow VDI 3814.
The HVAC macros try to adhere to these abbreviations as well as possible. These lists are continuously expanded. Contact us if entries are missing. For simplicity, only the most important designations are used.
Overview of the compilation
System identification key according to VDI 3814
1. Trade marking
TTF
Doors, gates, windows, sun protection
Doors, gates, windwos, sun protection
GWA
Sewage, water, gas systems
Sewage, water and gas plants
HZG
Heat supply systems
Heat supply systems
RLT
Air-technical systems
Ventilation systems
KAE
Refrigeration systems
Refrigeration systems
ELT
High-voltage/Power systems
High-voltage systems
FIA
Telecommunication and information technology systems
Telecommunication and information technology equipment
GMA
Hazard detection and alarm systems
Hazard detection and alarm systems
FTA
Conveying systems
Conveyors
KTA
Kitchen-technical systems
Kitchen technology systems
WAR
Laundry and cleaning systems
Laundry and cleaning systems
MVA
Media supply systems
Media supply systems
MED
Medical and laboratory-technical systems
Medical and laboratory equipment
FLA
Fire extinguishing systems
Fire extinguishing systems
BTA
Bathroom-technical systems
Bathing facilities
PRO
Process heating, cooling and air systems
Process heating, cooling and air systems
ENT
Waste disposal systems
Waste disposal facilities
GAS
Building automation general
Building automation and control systems, general
ISP
Automation focus / information focus
Automation focal point / information focal point
RAU
Room automation (zone)
Room automation
TAA
Technical systems in outdoor areas
Technical equipment in outdoor facilities
2. Short designation of systems
300 Structure – building construction
300 Structure – Building constructions
FAS
Facade (overall, otherwise room reference)
Facade (over-arching, otherwise room reference)
NRA
Natural smoke extraction
Natural smoke extraction
TUE
Doors, gates, airlocks
Doors, gates, sluices
RWA
Smoke and heat extraction systems
Smoke and heat exhaust ventilation system
SON
Sun protection system
Sunlight protection
411 Sewage systems
411 Sewage plants
ABS
Separator system
Separator facility
HBA
Lifting station
Lifting system
NEU
Neutralisation system
Neutralisation plant
412 Water systems
412 water plants
BGH
Trace heating
Trace heating
BTW
Service/process water
Process water
BWA
Well water
Well water
DOS
Dosing system
Dispensing installation
DEA
Pressure boosting system
Pressure booster system
EHA
Water softening system
Softening unit
TWA
Drinking water
Drinking water
TWE
Drinking water heating system (formerly WWB)
Drinking water heating system (prev. WWB)
UKO
Reverse osmosis system
Reverse osmosis system
VEA
Full desalination system
Desalination plant
421 Heat generation systems
421 Heat generation plants
BHK
CHP (combined heat and power)
CHP (combined heat and power)
EHZ
Electric heating
Electric heating
FWU (standard FWÜ)
District heating transfer
District heating transfer
GTH
Geothermal system
Geothermal system
KES
Boiler
Boiler
RDE
Clean steam generation
Clean steam generation
SOL
Solar system
Solar power system
WPU
Heat pump
Heating pump
422 Heat distribution networks
422 Heat distribution networks
DHG
Pressure maintenance
Pressure maintenance
HZK
Heating circuit
Heating circuit
HKK (no standard)
Heating/cooling circuit
Heating-/Cooling circuit
HZG
Heating (general)
Heating (general)
NSA
Make-up water system
Back-feed system
PFS
Buffer storage
Buffer
WVN
Heat distribution network
Heat distribution network
WTR
Heat exchanger
Heat exchanger
423 Space heating surfaces
423 Space-heating surfaces
BKA
Concrete core activation
Concrete core activation
DHZ
Ceiling heating
Overhead heating
DSP
Ceiling radiant panels
Ceiling radiator panels
FAH
Facade heating
Facade heating
FLH
Surface heating
Panel heating
FBH
Underfloor heating
Underfloor heating
HKD
Heated/cooling ceiling
Heated/chilled ceiling
STH
Static heating
Static heating
430 Air-technical systems
430 Ventilation systems
ABA
Exhaust air system
Exhaust air system
DLH
Ceiling air heater
Roof air heater
KVS
Recirculation network system
Circulatory system
LAZ
Air handling center
Air processing unit
MRA
Mechanical smoke extraction systems
Mechanical smoke extraction system
RDA
Smoke pressure system
Smoke pressure system
RLT
Room air technology (general)
Ventilation technology (general)
TKA
Partial air-conditioning system
Partial air-conditioning system
TLS
Door air curtain system
Air curtain system
ULA
Recirculation air system
Recirculating air system
VKA
Full air-conditioning system
Full air-conditioning system
WRG
Heat recovery system
Heat recovery system
ZUA
Supply air system
Intake air system
ERA
Smoke control system
Smoke extraction system
434 Refrigeration systems
434 Refrigeration systems
FKU (standard FKÜ)
Remote cooling transfer
Remote cooling transfer
KAE
Cooling (general)
Cooling (general)
KKR
Cooling circuit
Cooling circuit
KVN
Cooling distribution network
Cooling distribution network
KWE
Chilled water production
Cool water generation
KVE
Cooling supply for automation focal points/electrical cabinet cooling
Cooling supply automation focal points/electrical cabinet cooling
KSP
Cold storage
Cooling storage
KUD (standard KÜD)
Chilled ceiling
Chilled ceiling
RKW
Cooling tower/re-cooling plant
Re-cooling plant (also cooling tower)
441 High- and medium-voltage systems
441 High and medium-voltage systems
STA
Switchgear
Switchgear
TRF
Transformer
Transformer
MSA
Medium-voltage system
Medium-voltage system
KOA
Compensation system
Compensation system
FUA
Frequency converter system
Frequency converter system
442 Self-power supply systems
442 Self-power supply systems
AGA
Exhaust system
Emissions system
BAT
Battery system
Battery unit
BHK
Co-generation unit
Co-generation unit
BRV
Fuel supply
Fuel supply
ESA
Emergency power system
Standby power system
PVA
Photovoltaic system
Photovoltaic system
USV
Uninterruptible power supply
Uninterruptible power supply
443 Low-voltage switchgear
443 Low-voltage switchgears
ASV
General power supply
General power supply
SSV
Safety power supply
Safety power supply
BEL
Lighting system
Lighting
SIB
Emergency lighting
Emergency lighting
451 Telecommunications systems
451 Telecommunications systems
TEL
Telecommunications system
Telecommunications systems
452 Search and signalling systems
452 Search and signalling systems
LRA
Nurse call/Light call system
Call signalling system
TÜA
Door intercom and opener system
Door intercom and door opener system
PRA
Personal call system
Paging system
453 Time service systems
453 Time service systems
ZEA
Clock and time recording system
Clock and time recording system
454 Electro-acoustic systems
454 Electro-acoustic systems
ELA
Electro-acoustic system, public address system
Electro-acoustic system, sound systems
KDA
Conference and interpreter system
Conference and interpreting equipment
GSA
Intercom system
Intercom system
SAA
Voice alarm system
Voice alarm system
WSA
Two-way intercom systems
Intercommunication systems
455 Television and antenna systems
455 Television and antenna systems
TVA
Television system
Television system
SEA
Transmitting and receiving antenna system
Transmitting and receiving antenna system
BOS
Public safety radio system
BOS (Germany emergency services) radio system
456 Hazard detection and alarm systems
456 Hazard detection and alarm systems
BMA
Fire detection and alarm system
Fire detection and alarm system
COW
CO warning system
Carbon monoxide warning system
EMA
Intrusion detection system
Burglar alarm system
FWT
Fire brigade panel
Fire control panel
FWS
Escape route securing system
Escape route protection system
GMA
Alarm detection system
Hazard detection system
GWA
Gas warning system
Gas warning system
RAS
Smoke aspiration system
Smoke aspiration system
RBA
Room observation system
Room observation system
ÜFA
Robbery alarm system
Robbery alarm system
WKA
Guard control system
Guard control system
NOT
Emergency call system
Emergency call system
ZKS
Access control system
Access control system
457 Transmission networks
457 Transmission grids
LAN
Networks for the transmission of data, voice, text and image
Networks for the transmission of data, voice, text and images
459 Telecommunications and information technology equipment, other
459 Telecommunication and information technology equipment, other
FWA
Remote control systems
Remote control systems
PLS
Parking guidance system
Parking guidance systems
460 Conveying systems
460 Conveyors
ATA
File transport systems
File transportation systems
AUF
Elevator
Lift
BFA
Drive-on systems
Inspection systems
FST
Moving walkways
Moving walkways
FTR
Escalators
Escalators
FSA
Facade elevators
External lifts
GFA
Baggage conveyor system
Baggage conveyor system
RPA
Pneumatic tube system
Pneumatic delivery systems
WTA
Goods transport system
Goods transportation facilities
470 User-specific systems
User-specific systems
471 Kitchen technical systems
471 Kitchen technology systems
KLK
Small refrigeration systems
Small refrigeration unit
472 Laundry and cleaning systems
472 Laundry and cleaning systems
DES
Disinfection system
Disinfection unit
REA
Cleaning system
Cleaning unit
STR
Sterilization equipment
Sterilization systems
WAA
Water treatment plant
Water treatment system
WÄA
Laundry plant
Laundry system
473 Media supply system
Media supply systems
DRL
Compressed air supply system
Compressed air supply system
DRA
Pressure regulation system
Pressure regulator unit
MVA
Media supply system
Media supply system
MTG
Medical and technical gases
Medical and technical gases
VAK
Vacuum system
Vacuum unit
474 Medical and laboratory systems
474 Medical and laboratory equipment
MED
Medical-technical systems
Medical technical plant
MGV
Medical gas supply
Medical gas supply
LAB
Laboratory-technical systems (general)
Laboratory equipment (general)
475 Fire extinguishing systems
475 Fire extinguishing systems
FLA
Fire extinguishing system
Fire extinguishing system
GLA
Gas extinguishing system
Gas extinguishing system
LOS (standard LÖS)
Extinguishing system (general)
Fire extinguishing system (general)
NLA
Water mist extinguishing system
Mist-extinguishing system
NOX
NOx system
NOx system
SPR
Sprinkler system
Sprinkler system
WHA
Wall hydrant system
Wall hydrant system
478 Disposal systems
478 Disposal facilities
AEA
Waste disposal system
Waste disposal system
MEA
Media disposal system
Media disposal system
SSA
Central vacuum systems
Vacuum cleaning systems
480 Building automation
480 Building automation and control systems
ISP
Information focus
Information focal point
WET
Weather station
Weather station
MBE
Management and control unit
Management and operating equipment
RAU
Room automation
Room automation
RAV
Room automation system distributor
Room automation system distributor
540 Technical equipment in outdoor facilities
540 Technical equipment in outdoor facilities
RRB
Rainwater retention basin
Rainwater retention basin
ZTA
Cistern system
Cistern system
3. Device and component designation
FEE
Functionally independent equipment
Functionally independent equipment
ASR
Autonomous control or regulation unit
Self-contained control or regulation unit
SSK
Control cabinet (trade-specific)
Control cabinet (trade-specific)
330 Doors, gates, windows, sun protection
330 Doors, gates, windows, sun protection
FEN
Window (drive)
Window (drive)
FEK
Window contact
Window contact
JAL
Venetian blind
Blind
MAR
Awning
Awning
ROL
Roller shutters
Roller shutters
TOR
Gate
Gate
TÜR
Door
Door
TÜK
Door contact
Door contact
VER
Darkening
Blackout
412 Water systems
412 Water plants
BGH
Trace heating
Trace heating
EWH
Electric heater (DHW preparation)
Electric heating (domestic hot water preparation)
WFL
Water filter
Water filter
421 Heat generation systems
421 Heat generation plants
FEE
Functionally independent equipment
Functionally independent equipment
HZK
Boiler
Boiler
WUT (WÜT standard)
Heat exchanger
Heat exchanger
430 Air-technical systems and refrigeration systems
430 Ventilation and refrigeration systems
ABV
Exhaust air fan
Exhaust air fan
BEF
Humidifier
Humidifier
BFP
Humidifier pump
Humidifier pump
BSK
Fire protection flap/valve
Fire damper, fire protection valve
RSK
Smoke protection flap
Smoke protection damper
ERK
Smoke extraction flap
Smoke extractor damper
DDA
Ceiling swirl outlet
Ceiling swirl diffuser
DLA
Ceiling air heater
Roof air heater
DVD
Direct evaporator
Direct evaporator
ELH
Electric air heater
Electrical air heater
ENH
Electric reheater
Electric re-heater
EVH
Electric preheater
Electrical pre-heater
ERH
Heater (general)
Heater (general)
FOV
Exhaust air fan
Outgoing air fan
IND
Induction unit
Induction device
KTR
Refrigeration dryer
Refrigerant dryer
KVS
KVS (heat recovery via circulation systems)
Circulatory system (heat recovery unit via circulatory systems)
LFI
Air filter
Air filter
LKL
Ventilation flap
Ventilation flap
PPE
Pump
Pump
ULK
Recirculating air cooler
Recirculating air cooling device
UMV
Recirculating air fan
Recirculating air fan
UVF
UV filter
UV filter
VVR
Variable air volume controller
Variable flow rate controller
WLK (no standard)
Water-air cooler
WLH
Water air heater
Water air heater
WNH
Water reheater
Water re-heater
WVH
Water preheater
Water pre-heater
WRG
Heat recovery
Heat recovery
ZUV
Supply air fan
Supply air fan
ERA
Smoke control system
Smoke extraction systems
ERK
Smoke extraction flap
Smoke extractor damper
ERV
Smoke extraction fan
Smoke extraction ventilator
NSF
Overflow/air inlet window
Vent window
NSK
Inflow flap
Vent flap
NST
Inflow door
Vent door
NSV
Inflow fan
Wake fan
434 Refrigeration systems
434 Refrigeration systems
GLP
Glycol / oil protector
Glycol/oil protector
KMA
Refrigeration machine
Chiller
RKW
Cooling tower/recooler
Re-cooling plant
440 High-voltage systems
440 High-voltage systems
ASV
General power supply
General power supply
BHK
Co-generation unit
Co-generation unit
KOA
Compensation system
Compensation system
KUS
Coupling switch
Coupling switch
LTS
Load-break switch
Load-break switch
LSS
Circuit breaker
Circuit breaker
NAG
Network analysis device
Network analyser
NSG
Emergency power generator
Emergency power generator unit
SIB
Emergency lighting
Emergency lighting
SSV
Safety voltage supply
Safety power supply
TRF
Transformer
Transformer
USV
Uninterruptible power supply
Uninterruptible power supply
450 Telecommunications and information technology equipment
450 Telecommunications and information technology equipment
BMZ
Fire alarm control panel
Central fire alarm system
FWT
Fire brigade panel
Fire control panel
KUT (KÜT standard)
Kitchen panel
Kitchen tableau
RME
Smoke detector
Smoke detector
RSV
Smoke protection curtain
Smoke protection screen
SAZ
Voice alarm control panel
Voice alarm centre
TBL
Panel (general)
Tableau (general)
460 Conveying systems
460 Conveyors
AZA
Elevator general
Lift general
AZL
Freight elevator
Goods lift
AZP
Passenger elevator
Passenger lift
470 User-specific systems
470 User-specific systems
DIG
Fume hood
Fume cupboard
KOM
Compressor
Compressor
SPS
Programmable logic controller
Programmable logic controllers
479 User-specific system, weather station
479 User-specific system, weather station
RGM
Rain sensor
Rain sensor
SES
Solar irradiation
Solar radiation
WST
Weather station
Weather station
WDG
Wind speed
Wind speed
WDR
Wind direction
Wind direction
WDS
Wind strength
Wind force
480 Building automation
480 Building automation and control systems
ANL
System switch
System switch
ASE
Automation station equipment
Automation station equipment
BUS
Bus line coupler
Bus line coupler
DSE
Data interface unit
Data interface unit
FBM
Fieldbus module
Fieldbus module
ISP
Information focus
Information focal point
MBE
Management and control unit
Management and control equipment
481 GA-Sensorik – Temperatur
481 BACS sensors – temperature
TAG
Flue gas temperature
Emissions gas temperature
TAB
Exhaust air temperature
Exhaust air temperature
TAU
Outdoor temperature
Outside temperature
TFO
Outgoing air temperature
Exhaust air temperature
FSW
Frost protection monitor
Frost protection monitor
TMI
Mixed air temperature
Mixed air temperature
TRU
Room temperature
Room temperature
TRL
Return air temperature
Return flow temperature
STB
Safety temperature limiter
Safety temperature limiter
STW
Safety temperature monitor
Safety temperature monitor
TSP
Storage temperature (general)
Storage temperature (general)
TTP
Dew point temperature
Dew point temperature
TPW
Dew point monitor
Dew point monitor
TNK
Temperature after cooler
Temperature after cooler
TNV
Temperature after pre-heater
Temperature after pre-heater
TNW
Temperature after heat recovery
Temperature after heat recovery
THM
Thermostat
Thermostat
TWW
Hot water temperature
Hot water temperature
TWZ
Circulation temperature
Circulation temperature
TUM
Recirculating air temperature
Recirculating air temperature
TVL
Supply temperature
Flow temperature
TZU
Supply air temperature
Supply air temperature
481 GA-Sensorik-Druck
481 BACS sensors – pressure
PAB
Exhaust air pressure
Exhaust air pressure
PAU
Outside pressure
External pressure
PDI
Differential pressure
Differential pressure
PVI
Pressure sensor (water) flow
Pressure sensor (water) flow
DRW
Pressure monitor
Pressure controller
PFO
Outgoing air pressure
Outgoing air pressure
PRU
Room pressure
Room pressure
PSI
Index circuit sensor differential pressure
Index circuit sensor differential pressure
SDB
Safety pressure limiter
Safety pressure limiter
PZU
Supply air pressure
Supply air pressure
481 GA-Sensorik – Luftqualität
481 BACS sensors – air quality
COM
CO2 sensor
CO2 sensor
QAB
Exhaust air quality
Exhaust air quality
QRU
Room air quality
Room air quality
QZU
Supply air quality
Supply air quality
LQF
Air quality sensor
Air quality sensor
481 GA-Sensorik – Feuchte
481 BACS sensors – humidity
MAB
Relative exhaust air humidity
Relative exhaust air humidity
MAU
Relative external humidity
Relative external humidity
MFO
Relative outgoing air humidity
Relative outgoing air humidity
MKW
Condensation monitor
Condensation monitor
MMI
Relative mixed air humidity
Relative mixed air humidity
MRU
Relative room humidity
Relative room humidity
MUM
Relative recirculated air humidity
Relative recirculated air humidity
MZU
Relative supply air humidity
Relative supply air humidity
XAB
Absolute exhaust air humidity
Absolute exhaust air humidity
XAU
Absolute external humidity
Absolute external humidity
XFO
Absolute outgoing air humidity
Absolute exhaust air humidity
XMI
Absolute mixed air humidity
Absolute mixed air humidity
XRU
Absolute room humidity
Absolute room humidity
XUM
Absolute recirculating air humidity
Absolute recirculating air humidity
XZU
Absolute supply air humidity
Absolute supply air humidity
481 GA-Sensorik – Verbrauchserfassung
481 BACS sensors – consumption recording
ELZ
Electric meter
Electric meter
EGZ
Gas meter natural gas
Gas meter natural gas
KMZ
Cooling energy meter
Cooling energy meter
WMZ
Heat meter
Heat meter
WAZ
Water meter
Water meter
BSZ
Fuel meter (oil)
Fuel meter (oil)
DMZ
Steam meter
Steam meter
GTZ
Degree day number
Degree day number
481 GA-Sensorik – Zustandserfassung und sonstige
481 BACS sensors – condition recording and other
LCK
Leakage monitoring
Leakage monitoring
NOT
Emergency stop unit/button
Emergency stop unit/button
LSP
Storage fill level
Stock level
SSW
Flow monitor
Flow monitor
UBL
Overflow monitoring
Overflow monitoring
WMS
Low-water protection
Low-water cut-off
WSW
Water flow monitor
Water flow monitor
481 GA-Sensorik - Drehzahl
481 BACS sensors – speed
SPP
Pump speed
Pump speed
SAB
Fan speed (exhaust air)
Fan speed (exhaust air)
SFO
Fan speed (outgoing air)
Fan speed (exhaust air)
SZU
Fan speed (supply air)
Fan speed (supply air)
481 GA-Sensorik – Volumenstrom
481 BACS sensors – volume flow
FAB
Exhaust air volume flow
Exhaust air volume flow rate
FAU
Outdoor air volume flow
Outdoor air flow rate
FFO
Outgoing air volume flow
Exhaust air volume flow rate
FSO
Brine volume flow (heat exchanger)
Volume flow brine (circulatory system)
FKW
Cold drinking water flow
Volume flow cold drinking water
FWW
Hot drinking water flow
Volume flow hot drinking water
FAW
Water treatment volume flow
Volume flow water purification
FZU
Supply air volume flow
Supply air volume flow
481 GA-Aktorik – Stellantrieb
481 BACS actuators – actuating drives
HKV
Radiator valve actuator
Radiator valve drive
KDV
Cooling ceiling valve actuator
Cooling ceiling valve drive
KLA
Motorised damper (general)
Motorised flap (general)
VEN
Motorised valve (general)
Motor valve general
481 GA-Lighting
481 BACS lighting
EAU
Outdoor illumination level
Illumination external
ERU
Room illumination level
Illumination room
CRU
Room light colour
Light colour room
IRT
Red light intensity
Red light intensity
IGN
Green light intensity
Green light intensity
IBL
Blue light intensity
Blue light intensity
481 GA-Sonnenschutz
481 BACS sun protection
JWI
Blind angle position
Blind angle position
JPO
Shading position
Shading position
JFB
Drive command
Movement command
485 Room automation
485 Room automation
ABE
Display and control unit
Display and control unit
PAE
Presence switch, detector, motion detector
Presence switches, detectors, motion detectors
RAE
Room automation device
Room automation device
RBG
Room control unit
Room control unit
4. Function identification
AF__
Request
Requirement
AS_
System switch
System switch
BEL
Room occupancy status
Occupied status room
GWC
Calculated threshold
Calculated limit value
SWC
Calculated setpoint
Calculated setpoint
BB_
Operational ready
Ready for operation
BM_
Operational message
Operational message
BZ_
Operating hours
Hours of operation
BZG
Operating hours limit value
Hours of operation limit value
CAL
Calendar object
Calendar object
COM
Command object
Command object
TV_
Controller differential constant
Differential constant controller
EF_
Switch-on error, unauthorized ON
Switch-on error, unauthorised ON
EN_
Energy level
Energy level
ENC
Calculated energy level
Energy level calculated
ENT
Release device
Unlocking device
EE_
Event enrollment object
Envent enrollment object
FR_
Release
Enabled
GM_
Hazard message
Danger alarm
GW_
Limit value
Threshold
GWX
MAX limit value
MAX limit
GWI
MIN limit value
MIN limit
GWN
Night limit value
Night limit
GWT
Day limit value
Day limit
GP_
Group object
Group object
HD_
LVB manual message
local priority and operating units manual message
HEX
Heating characteristic curve exponent
Heating characteristic curve exponent
HPV
Heating characteristic curve parallel shift
Heating characteristic curve parallel displacement
HST
Heating characteristic curve slope
Heating characteristic curve steepness
NAH
Heating circuit night setback
Heating circuit night reduction
HYS
Hysteresis
Hysteresis
KAL
Calendar
Calendar
LFZ
Runtime fault
Runtime error
LPX
Loop-MAX limitation
Loop MAX limit
LPI
Loop-MIN limitation
Loop MIN limit
LP_
Loop object (controller object) – complex object
Loop object (controller object) – complex object
MAX
Maximum value
Maximum value
MW_
Measured value
Measured value
MIN
Minimum value
Minimum value
MWT
Average value
Mean
NL_
Run-on time
Follow-up time
TN_
Reset time
Reset time
NC_
Notification class object
Notification class object
PR_
Program
Program
XP_
Proportional band
Proportional band
RMA
Feedback OPEN
Feedback OPEN
RMZ
Feedback CLOSED
Feedback CLOSED
RW_
Feedback value
Feedback value
RFA
Feedback error OPEN
Feedback error OPEN
RFZ
Feedback error CLOSED
Feedback error CLOSED
RM_
Feedback
Feedback
RF_
Execution control
Execution control
SB_
Switch command
Switching command
SCH
Scheduler
Scheduler
SW_
Setpoint
Setpoint
SWB
Base setpoint
Base setpoint
SWH
Heating setpoint
Heating setpoint
SWK
Cooling setpoint
Cooling setpoint
SWX
Setpoint, maximum
Setpoint, maximum
SWM
Mechanical setpoint
Setpoint, mechanical
SWI
Setpoint, minimum
Setpoint, minimum
SWN
Night setpoint
Night setpoint
SWT
Day setpoint
Day setpoint
SWV
Setpoint adjuster
Setpoint adjuster
SVM
Mechanical setpoint adjuster
Setpoint adjustment, mechanical
STA
Status
Status
ST_
Control signal
Control signal
SM_
Fault
Fault
TS_
Push button
Button
TZ_
Dead band
Dead zone
TRM
Trend log multiple object
Trend log multiple object
TR_
Trend log object
Trend log object
KP_
Proportional controller
Amplification controller
TV_
Hold time
Retention period
WM_
Maintenance message
Maintenance message
WG_
Efficiency
Efficiency
ZW_
Counter value
Count value
ZP_
Time program
Time program
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