Appendix; 13.1 Abbreviations Used - Siemens Synco 200 Basic Documentation

152 / 174
Siemens
Building Technologies
13

Appendix

13.1 Abbreviations used

To facilitate reading, the most common abbreviations are listed below in
alphabetical order.
Abbreviation Meaning
Heating
Cooling
Δw
Setpoint shift
EA Extract air
AC Alternating current
AI Analog input
AO Analog output
OA Outside air
CMP Setpoint compensation
DC Direct current
DI Digital input
DO Digital output
DX Direct expansion cooling
EHA Exhaust air
I I-control
LCD Liquid crystal display
AHC Air heating coil
ACC Air cooling coil
MECH Maximum economy changeover (MECH)
P P-control
PI PI control
Q Load output
SpTSu Supply air temperature setpoint
SpTSuH Supply air temperature setpoint heating
SpTSuC Supply air temperature setpoint cooling
t Time
TA, TOa Outside temperature (OT)
Text Extract air temperature
TFrst Frost temperature
Tn Integral action time
TR Room or extract air temperature
t Return temperature
RL
Tsu Supply air temperature
TW Water temperature
w Setpoint
x Actual value
X dz
Dead zone
Xp P-band
Y, Yctl Controller output
SA Supply air
Universal Controllers RLU2...
Appendix
CE1P3101en
29.08.2008