Airwell YBZE218-324-430, Service Manual

Page: 37 / 68

CONTROL SYSTEM
Service Manual
– YBZE DCI 1-A.1 GB
12-1
12. CONTROL SYSTEM
12.1 Electronic Control
12.1.1 Abbreviations
Abbreviation Definition
A/C Air Condition
BMS Building Management System
PWR System Power
CTT Compressor Top Temperature sensor
DCI DC Inverter
EEV Electronic Expansion Valve
HE
Heating Element
HMI Human Machine Interface
HST Heat Sink Temperature sensor
Hz Hertz (1/sec)
– electrical frequency
ICT Indoor Coil Temperature (RT2) sensor
IDU Indoor Unit
MCU Micro Controller Unit
OAT Outdoor Air Temperature sensor
OCT ODU Coil Temperature sensor
ODU Outdoor Unit
OFAN
Outdoor Fan
PFC
Power Factor Corrector
RAC Residential A/C
RC Reverse Cycle (Heat Pump)
RGT Return Gas Temperature sensor
RPS Rounds per second (mechanical speed)
RV Reverse Valve
SB,STBY Stand By
SUCT Compressor Suction Temperature sensor
S/W Software
TBD To Be Defined
TMR
Timer
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