How to Efficiently Heat Air Using Indoor Coil and Electric Heat Strips

What is the role of the indoor coil in the heating process?

a. Absorbing heat from the outdoor air

b. Serving as the evaporator during air conditioning

c. Providing backup cooling source

d. Producing heat directly

Answer:

The role of the indoor coil in the heating process is:

When the air conditioner is running, the indoor coil serves as the evaporator in the heating process. The indoor coil is typically mounted in the air stream before the auxiliary electric heat strips. This positioning allows the coil to efficiently absorb heat from the indoor air as it passes through, providing the necessary warmth for heating.

The auxiliary electric heat strips, on the other hand, serve as a backup heating source when additional heat is needed to reach the desired temperature. By having the coil positioned before the electric heat strips, the air can be warmed effectively before reaching the strips, optimizing the heating efficiency of the system.

In conclusion, the indoor coil's role as the evaporator in the heating process, combined with the placement before the electric heat strips, plays a crucial part in efficiently heating the air in HVAC systems.