HVAC-Module 1-Introduction to HVAC Questions and Answers | Latest Version | 2024/2025 | Correct & Verified

HVAC-Module 1-Introduction to HVAC Questions and Answers | Latest Version | 2024/2025 | Correct & Verified Why is it important to have a properly sized system for heating and cooling? A properly sized system ensures optimal performance, efficiency, and comfort without overworking the equipment or wasting energy. What is a programmable thermostat used for? A programmable thermostat allows users to set specific times for temperature changes, improving energy efficiency by adjusting heating or cooling when needed. What is the purpose of ventilation in a building? Ventilation helps remove stale air, pollutants, and moisture, while bringing in fresh air to ensure a healthy indoor environment. Why should filters be replaced regularly in a climate control system? Replacing filters ensures proper airflow, improves air quality, and increases the efficiency of the system by preventing dirt buildup. 2 What is the difference between a split system and a packaged system? A split system has separate components for indoor and outdoor units, while a packaged system combines all components in one unit located outside. What is the role of the evaporator in a cooling system? The evaporator absorbs heat from the indoor air, causing the refrigerant to evaporate and cool the air that is circulated back into the space. Why is energy efficiency important when choosing a climate control system? Energy efficiency reduces operating costs, conserves resources, and helps lower the environmental impact of the system. What is a zone control system? A zone control system divides a building into separate areas with individual temperature controls, allowing for personalized climate settings in different rooms. What is the function of an expansion valve in a refrigeration cycle? An expansion valve controls the flow of refrigerant into the evaporator, helping maintain the proper pressure and temperature for efficient cooling. 3 What is the purpose of a thermostat in a climate control system? A thermostat regulates the temperature by controlling the heating or cooling system to maintain a set temperature. What is the primary function of an air conditioner? An air conditioner cools the air by removing heat and moisture, improving comfort inside a building. Why is proper insulation important in maintaining a comfortable indoor environment? Insulation helps keep indoor temperatures stable by reducing heat loss in winter and keeping heat out during summer. What is a refrigerant, and why is it important? A refrigerant is a fluid used to transfer heat in cooling systems, allowing for the removal of heat from the indoor air. How does a furnace heat a building? 4 A furnace heats air by burning fuel or using electricity and then distributes the warm air through ducts into the rooms. What is the function of an air filter in a ventilation system? An air filter traps dust, dirt, and other particles to improve indoor air quality and prevent clogging of the system.