ACRONYMS
Table 46: Table of Acronyms
%OA Percentage Outdoor Air IUCF Indoor Unit Correction Factor
%RA Percentage Return Air KTL Korea Testing Laboratory
ABS Acrylonitrile Butadiene Styrene LEED Leadership in Energy and Environmental Design
AC Air Conditioner LGAP LG Air Condtioner Protocol
ACP Advanced Control Platform MAT Mixed Air Temperature
ARI Air Conditioning and Refrigeration Institute MBh Thousands BTUs per hour
ASHRAE American Society of Heating, Refrigeration, and Air
Conditioning Engineers
MCA Maximum Circuit Ampacity
AHU Air Handling Unit MFS Maximum Fuel Size
AWG American Wire Gauge MOP Maximum Overcurrent Protection
BLDC Brushless DC Motors MR Material Resources (LEED Related)
Btu/h British Thermal Units/hour NC New Construction (LEED Related)
CCR Corrected Capacity Ratio Normally Closed
CDOA Coupled Dedicated Outdoor Air NEC National Electrical Code
CFM Cubic Feet per Minute NO Normally Open
CI Commercial Interiors (LEED Related) OAT Outdoor Air Temperature
COP Coeffi cient Of Performance O&M Existing Building Operations and Maintenance (LEED Related)
CR Combination Ratio ODU Outdoor Unit
CS Core and Shell (LEED Related) OUCF Outdoor Unit Correction Factor
DB Dry Bulb PDI Power Distribution Integrator
dB(A) Decibels with “A” frequency weighting PI Power Input
DDOAS Decoupled Dedicated Outdoor Air PR Prerequisite (LEED Related)
DI Digital Input PTAC Packaged Terminal Air Conditioner
DO Digital Output PVE Polyvinyl Ether
EA Energy and Atmosphere (LEED Related) RAT Return Air Temperature
EEV Electronic Expansion Valve RCL Refrigerant Concentration Limit
ELF Equivalent Length in Feet RP Regional Priority (LEED Related)
EPDM Ethylene Propylene Diene M-Class Rubber RUR Running Unit Ratio
ESP External Static Pressure K12 Schools (LEED Related)
ETL Electrical Testing Laboratories USGBC U.S. Green Building Council (LEED Related)
HACR Heating, Air Conditioning, and Refrigeration VAH Vertical Air Handler
H/M/L High/Medium/Low VAV Variable Air Volume
IAQ Indoor Air Quality VRF Variable Refrigerant Flow
ID Innovations in Design (LEED Related) VRP Ventilation Rate Procedure
IDU Indoor Unit WE Water Effi ciency (LEED Related)
IEQ Indoor Air Quality (LEED Related)
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