
PROHEAT AIR A2/A4 INSTALLATION MANUAL
1-2
1
.4
6
"
(3
7
m
m
)
4
.1
3
"
(1
0
5
m
m
)
1
.7
3
"
(4
4
m
m
)
1
.8
8
"
(7
4
m
m
)
4
x
0
.2
6
"
D
IA
.
(7
m
m
D
IA
.)
1
"
(2
5
m
m
)
0
.3
0
"
D
IA
.
(8
m
m
D
IA
.)
C
A
B
IN
A
IR
C
O
M
B
U
S
T
IO
N
A
IR
1
4
.0
"
(3
5
5
m
m
)
4
.9
"
(1
2
4
m
m
)
3.0
"(
75
mm
)
3.0
"(
75
mm
)
.1
5
7
"
(4
m
m
)
4
.7
5
"
(1
2
0
m
m
)
1
.4
2
"
(3
6
m
m
)
1
0
.8
"
(2
7
5
m
m
)
PHYSICAL A2
1.2