PL-low static pressure duct type indoor unit
P-standard static pressure duct type indoor unit
PH-high static pressure duct type indoor unit
PB-slim type duct type indoor unit
T-Four-way Cassette type indoor unit
A-Air handler type indoor unit
TD-one-way cassette type indoor unit
TS-two-way cassette type indoor unit
ZD-floor ceiling type indoor unit
ZK-combine type indoor unit
C-console type indoor unit
G-wall-mounted type indoor unit
L-Floor Standing type indoor unit
U-AHU-KIT type indoor unit
Nominate by A, B, C or expand it by 1, 2, 3…