Appendix A – Acronyms
- BAS
- building automation systems
- CCDA
- Canadian Council of Directors of Apprenticeship
- CFC
- chlorofluorocarbon
- CPR
- crankcase pressure regulator
- ECM
- electronically commutated motors
- EPR
- evaporator pressure regulator
- ERV
- energy recovery ventilation
- HC
- hydrocarbons
- HCFC
- hydrochlorofluorocarbon
- HFC
- hydrofluorocarbon
- HFO
- hydrofluoroolefin
- HRV
- heat recovery ventilation
- HVAC/R
- heating, ventilation, air conditioning and refrigeration
- IAQ
- indoor air quality
- LEED
- Leadership in Energy and Environmental Design
- OEM
- original equipment manufacturer
- OH&S
- Occupational Health and Safety
- P
- proportional
- PI
- proportional integral
- PID
- proportional integral derivative
- PLC
- programmable logic controllers
- PPE
- personal protective equipment
- P/T
- pressure/temperature
- PWM
- pulse width modulation
- SOP
- safe operating procedures
- TDG
- transportation of dangerous goods
- VFD
- variable frequency drives
- VRF
- variable refrigerant flow
- VSD
- variable speed drive
- WHMIS
- Workplace Hazardous Materials Information System