ECS II TEST 2.docx

IECC - correct answer International Energy Conservation Code Insulation for Buildings IMC - correct answer International Mechanical Code Ventilation/Exhaust | Kitchen Hoods IBC - correct answer International Building Code Occupancy Groups and their Requirements ASHRAE - correct answer American Society of Heating, Refrigerating and Air-Conditioning Engineers Referenced in Codes and requirements in programs like LEED ASHRAE 62.1 - correct answer Ventilation for Acceptable Indoor Air Quality ASHRAE 90.1 - correct answer Standard for Energy efficiency of buildings and HVAC systems ASHRAE 55 - correct answer Occupant Thermal Comfort NFPA - correct answer National Fire Protection Association All space with sprinklers must be maintained above 40* for freeze protection. DX Split Systems (Direct Expansion) - correct answer Condenser and Evaporator are two separate units Condensing Unit (CU) also referred to as Outdoor Unit Evaporator also referred to as Indoor Unit, Air Handling Unit (AHU) Mini split - correct answer Same as Normal DX Split Systems Roof Top Unit (RTU) - correct answer Packaged Evaporator and Condenser in One Unit Curbs - correct answer -Support the weight of equipment on a roof -Maintain roof integrity from weather -Can come with Vibration Isolation for noise Heat Pump (HP) Variable Refrigerant Flow (VRF) - correct answer -A system that can run its refrigeration cycle backwards -Efficient for heat, but not always effective -Moves heat rather make it Heat Recovery Variable Refrigerant Flow - correct answer -Condenser outside serving multiple evaporators with Heat Pump capabilities -Variable speed compressor -Can adjust to exact heat load -Can cool and heat at the same time with heat recovery Cooling Towers - correct answer -Heat rejection scheme using water; similar role of a condenser but for large water HVAC systems -Used in many industrial cooling concepts -As water passes air, it evaporates and cools, and remaining water is cooler -Efficiency related to humidity in the air. Water Sourced Heat Pump (WSHP) - correct answer -Works the same way as normal heat pump, but with a water heat exchanger instead of CU -Runs with Condenser Water 85* 100*F -Single unit with all components of a refrigeration cycle contained