Control System - Electra DNG 100 Service Manual

12.

CONTROL SYSTEM

12.1 Abbreviations
Abbreviation
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
HST Heat Sink Temperature sensor
Hz Hertz (1/sec) – electrical frequency
ICT Indoor Coil Temperature (RT2) sensor
IDU Indoor Unit
IFAN Indoor Fan
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
PFC Power Factor Corrector
RAC Residential A/C
RC Reverse Cycle (Heat Pump)
RPS Rounds per second (mechanical speed)
RV Reverse Valve
SB,STBY Stand By
SH Superheat
SUCT/SCT Compressor Suction Temperature sensor
S/W Software
TBD To Be Defined
TEMP Temperature
TMR Timer
SM OU12HP 2-E.2 GB
Definition
CONTENTS
CONTROL SYSTEM
12-1