F: split type
R: heat pump type
G: hanging indoor unit
L: vertical indoor unit
W: outdoor unit
The air conditioner with "R" in its model letter is cold and warm air conditioner; What has no "R" is a single-cooling air conditioner. Those marked with "BP" after the above model letters represent variable frequency air conditioners; If there is no "BP", it means constant speed air conditioning; The one marked "ZBP" means DC inverter air conditioner. The other alphanumeric characters are the serial numbers of air conditioners.