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ACRONYMS
Table 29: Table of Acronyms.
ABS
Acrylonitrile Butadiene Styrene
AC
ACP
Advanced Control Platform
American Society of Heating, Refrigeration, and
ASHRAE
AWG
BLDC
Brushless Digitally Controlled/Direct
Btu/h
British Thermal Units per hour
BUS
CFM
COP
Coefficient Of Performance
CR
DB
dB(A)
Decibels with "A" frequency weighting
DDOAS
Decoupled Dedicated Outdoor Air
DI
DO
DPST
Double-Pole Single-Throw (switch)
EEV
Electronic Expansion Valve
ELF
ESP
ETL
Electronic Testing Laboratories
HIPS
H/M/L
HVAC
Heating, Ventilation and Air Conditioning
54 | MECHANICAL SPECS
Air Conditioner
Air Conditioning
American Wire Gauge
Binary Unit System
Cubic Feet per Minute
Combination Ratio
Dry Bulb
Digital Input
Digital Output
Equivalent Length in Feet
External Static Pressure
High Impact Polystyrene
High/Medium/Low
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IDU
ISO
International Organization for Standardization
kW
LED
Light Emitting Diode
MBh
Thousands BTUs per hour
MCA
Maximum Circuit Ampacity
MOP
Maximum Overcurrent Protection
MSC
Maximum Starting Current
NC
Noise Criterion (regarding Sound Pressure Levels)
NEC
National Electrical Code
ODU
PCB
Printed Circuit Board
PCM
PDI
Power Distribution Indicator
PI
PTAC
Packaged Terminal Air Conditioner
PVC
SW or
S/W
USB
Universal Serial BUS
VAC
Voltage Alternating Current
VAV
Variable Air Volume
VRF
Variable Refrigerant Flow
WB
Indoor Unit
Kilo Watts
Outdoor Unit
Pre-Coated Metal
Power Input
Polyvinyl Chloride
Switch
Wet Bulb
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