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A
B
D
E
F
G
C
B
C
F
G
A
e
e
e+e=E
Min 12 in
A = Height from unit base to enclosure ceiling
B = 2X4 framing depth (doesn't include facing material) - Additional framing
can be attached for wider enclosures
C = 2X4 framing width (doesn't include facing material) - Additional framing
can be attached for wider enclosures
D = Distance from floor to bottom finishing edge
E = Total required surface area for heat release (min. 12" [305mm] wide)
F = Distance spanning both finishing edges
G (Open Top) = Height from open enclosure heat release to ceiling
G (Closed Top) = Surface area calculations do not apply to dimensions less
than min.
H= Distance Heat release must be from enclosure ceiling or a false ceiling will
be required
A
B
D
F
H
E
E
G
C
Framing and Installation
DIMENSION
A
U50/U70
88 1/2” (2248 mm)
B
21” (533 mm)
C
U50
50 3/4” (1289 mm)
U70
70 3/4" (1797 mm)
D
U50/U70
11 1/16" (280mm)
E
U50
Minimum 170 in2 (1097 cm2)
U70
Minimum 210 in2 (1355 cm2)
F
U50/U70
17 3/8” (441 mm)
G
Minimum 2” (51 mm)
H
0 - 1 1/2” (0-38 mm) Maximum