PPD - Chap. 18 - HVAC Types

Select the correct HVAC building systems for apartments.

What is the HVAC system that uses ventilation directly from the outside, passes the air over an evaporator, cooling it, and then discharges the air into the conditioned space?

What type of all-air HVAC system forces air from a central plant at a constant temperature through a single duct into a conditioned space? A thermostat controls the volume of the air to respond to the client's needs.

Which type of HVAC system consists of two-ducts running parallel to each other, one carrying hot-air, the other, cold. The two streams meet in an mixing box, controlled by a thermostat, that mixes the air to the desired conditions.

Which type of HVAC system consists of a single compressor/condenser that connects to multiple evaporators located in different zones (rooms), and which uses refrigerant rather than water to transfer heat or absorb heat from a space?

Which type of HVAC system supplies air to a central mixing unit where heating and cooling coils produce separate hot/cold air-streams that are mixed by dampers controlled by thermostats and tempered, then delivered to a specific space?

A Variable Refrigerant Flow system (VRF) is NOT appropriate for what types of spaces?