12-1
CONTROL SYSTEM
SM DLSDCI 3-A.1 GB
12. CONTROL SYSTEM
12.1 Abbreviations
Abbreviation Denition
A/C Air Conditioner
BMS Building Management System
CCR Compressor Current
CCH Crankcase Heater
COMP Compressor
CTT Compressor Top Temperature sensor
DCI DC Inverter
DMSMP Dummy Multi Split multi Pipe – Control board
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 sensor
ODU Outdoor Unit
ODUC Outdoor Unit Control board
OFAN Outdoor Fan
PD Presence Detector
PFC Power Factor Corrector
RAC Residential A/C
RAT Return (Room) Air Temperature sensor
R/C Remote Control
RC Reverse Cycle (Heat Pump)
RGT Return Gas Temperature sensor
RLT Return Liquid Temperature sensor
RPS Rounds per second (mechanical speed)
RV Reverse Valve
SB,STBY Stand By
SH Super-Heat
SPT Set Point Temperature (In R/C)
S/W Software
TBD To Be Dened
TEMP Temperature
TMR Timer
TPT Technician peripherial Test