Lennox MPA012S4S-1L Service Manual page 56

M33A Indoor Units Clearances
INSTALLATION
HANGERS
LEVELING
ADJUSTMENT
NUT (4)
CEILING
OUTLET
Minimum Clearance from Structural Ceiling to Drop Ceiling:
AIR
DIFFUSER
PANEL
(Ceiling Opening)
36"
(914 mm)
M33A024 -- 10-1/4" (260 mm)
M33A036, M33A048 -- 13" (330 mm)
Minimum Clearance to Floor - 98-1/2" (2500 mm)
AIR
INLET
23-5/8 (600)
36"
(914 mm)
(914 mm)
36"
(914 mm)
AIR
OUTLET
36"
Lennox Mini-Split Service Manual / Page 56