12-1
CONTROL SYSTEM
SM CKDDCI 2-A.3 GB
12 CONTROL
SYSTEM
12.1 Abbreviations
Abbreviation
Definition
A/C
Air Conditioner
BMS
Building Management System
CCR
Compressor Current
CCH
Crankcase Heater
COMP
Compressor
CTT
Compressor Top Temperature sensor
DCI
DC Inverter
E²PROM, EEP
Erase Enable Programmable Read Only Memory
EEV
Electronic Expansion Valve
HE
Heating Element
HMI
Human Machine Interface
HPS
High Pressure Switch
HST
Heat Sink Temperature sensor
Hz
Hertz (1/sec) – electrical frequency
ICT
Indoor Coil Temperature (RT2) sensor
IDU
Indoor Unit
IFAN
Indoor Fan
LPS
Low Pressure Switch
M2L
Mega Tool (Monitoring SW)
MCU
Micro Controller Unit
NA
Not Applicable
OAT
Outdoor Air Temperature sensor
OCT
ODU Coil Temperature sensor
OMT
Outdoor middle coil temperature
ODU
Outdoor Unit
OFAN
Outdoor Fan
PD
Presence Detector
PFC
Power Factor Corrector
RAC
Residential A/C
RAT
Return (Room) Air Temperature
R/C
Remote Control
RC
Reverse Cycle (Heat Pump)
RPS
Rounds per second (mechanical speed)
RV
Reverse Valve
SB,STBY
Stand By
SH
Super-Heat
SPT
Set Point Temperature (In R/C)
SUCT/SCT
Compressor Suction Temperature sensor
S/W
Software
TBD
To Be Defined
TEMP
Temperature
TMR
Timer
TPT
Technician peripherial Test