100% Outside Air/Recirculation Air
IG-100 to 400 with Down Discharge
19
Unit Dimensions
Dim
IG-100
IG-150
IG-200
IG-250
IG-300
IG-400
A
120
120
120
120
120
136
B
2
42
42
42
42
43
0
C
4
04
04
04
04
05
2
D
38
1 /
2
38
1 /
2
38
1 /
2
38
1 /
2
38
1 /
2
48
1 /
2
E
1
01
31
51
52
81
8
F
Curb Height - 2
1 /
2
G
Curb 2
A
B
C
Contr
ol
Center
E
Gas
Connection
G
Lifting Lugs
Lifting
Lugs
F
D
Optional V
-Bank Filters
Optional Motorized
Intake Damper
Optional Recir
c Damper
Recommended
Roof Opening
Roof Curb O.D.
Supply
Duct
H
Roof Curb O.D.
w/Recir
c
M
Optional
Retur
n Duct
Fur
nace
Supply
Retur
n
Duct Locations
Roof
Roof Curb
Supply
Retur
n
Input
Duct
Duct
HM
Curb O.D.
O.D. w/Recir
c
Roof Opening
Roof Opening
100-300
18 x 30
17 x 30
12
3
/ 4
92
1
/ 4
38
1 /
2
x 88
1 /
2
38
1 /
2
x 118
1 /
2
22 x 34
22 x 34
400
24 x 40
17 x 42
15
3
/ 4
105
1
/ 4
50
1 /
2
x 106
1 /
2
50
1 /
2
x 134
1 /
2
28 x 46
22 x 46
Roof Curb Dimensions
**Intake Damper is in front of filter section on return air units.