Here are a few reasons why a time delay on break time is used in HVAC systems:

• Energy Savings: By introducing a break time, the HVAC system can be turned off or operated at a reduced capacity during periods of low demand, such as during unoccupied hours or mild weather conditions. This helps conserve energy and lower utility bills.
• Equipment Longevity: Continuous operation of HVAC equipment can lead to increased wear and tear, potentially reducing its lifespan. By incorporating a break time, the system is given a chance to rest and cool down, which can extend its operational life.
• Improved Comfort: In some cases, a time delay on break time can help maintain a more comfortable indoor environment. For instance, during hot summer days, the HVAC system may be programmed to take a break during the hottest hours of the day, allowing the indoor temperature to rise slightly. This can reduce the strain on the system and prevent it from overworking to maintain a lower temperature.