Final answer:
The number of air conditioning packs on a Boeing 737 aircraft varies depending on the model.
Step-by-step explanation:
Subject: Engineering
The number of air conditioning packs on a Boeing 737 aircraft varies depending on the model.
The Boeing 737 MAX, for example, has two air conditioning packs, while the earlier models like the Boeing 737-800 have three packs.
These packs are responsible for cooling and conditioning the air in the aircraft's cabin.
Each pack consists of several components, including a compressor, condenser, evaporator, and controls.