Indoor Units; Indoor Unit Wall Mounts; System Clearances; Outdoor Unit - Lennox MHB Series Installation, Instruction And Service Manual

Indoor Units

C
SIDE VIEW
Figure 5. Indoor Unit Dimensions - Inches (mm)
A
Size
in. mm
9K 27-3/4 730
12K 31­3/4 806
18K 38­1/4 972
24K 42­5/8 1083

Indoor Unit Wall Mounts

Indoor unit outline
1-7/8
(48)
28-1/2 (724) 9K
31-3/4 (806) 12K
Left rear side
refrigerant pipe inlet
2-1/2 (64) diameter
Figure 6. 9K and 12K Indoor Unit Wall Plate
Dimensions - Inches (mm)
Indoor unit outline
50
100 mm
50
4
100
4 inch 2
LIQUID
mm
inch
150 6
RECOMMAND
38-1/4 (972) 18K
42-5/8 (1083) 24K
Left rear side
refrigerant pipe inlet
2-1/2 (64) diameter 18K
3-1/2 (90) 24K
Figure 7. 18K and 24K Indoor Unit Wall Plate
Dimensions - Inches (mm)
A
FRONT VIEW
BOTTOM VIEW
B
in. mm in.
11­1/2 292 8­1/8
11­5/8 295 7-7/8
12­3/4 324 9­1/8
13­1/4 337 9­3/8
13-3/4 (349) 9K
15-7/8 (403) 12K
Right rear side
refrigerant pipe inlet
2-1/2 (64) diameter
20-3/4 (527) 18K
23-3/4 (603) 24K
BUBBLE
LEVEL
50 100
2 4
GAS
Right rear side
refrigerant pipe inlet
2-1/2 (64) diameter 18K
3-1/2 (90) 24K

System Clearances

Outdoor Unit

B
12
(305)
Figure 8. Outdoor Unit Clearances - Inches (mm)

Indoor Unit

C
mm
207
200
Wall
232
5"
(127 mm)
Minimum
238
Figure 9. Indoor Unit Clearances - Inches (mm)
11-1/2 (290) 9K
11-3/4 (297) 12K
1-7/8 (48) 9K
2-1/8 (54) 12K
12-1/2 (318) 18K
13-3/8 (340) 24K
1-7/8 (48) 18K
2-1/8 (54) 24K
5
24 (610)
24
(610)
Minimum rear clearance can be 6 inches (152 mm) when mounted on brackets
1
and with no obstructions on the other three sides.
Ceiling
6" (152 mm)
Minimum Clearance
Wall
(127 mm)
Minimum
Vertical Clearance - Clearance to Floor -
72 inches (1829 mm) Minimum
96 inches (2438 mm) Recommended
Floor
FRONT VIEW
Air Inlet
12
1
(305)
79
(2007)
Air Outlet
Any Object
5"
59"
(1499 mm)
Minimum
SIDE VIEW