A) Refer to minimum clearance table in the lower corner of this page for clearances
B) National Electric Code requires 3 feet minimum (4 feet if certain conditions are present) clear-
ance between service access panel and adjacent unit. If service access panel faces the wall, the
required space between the the wall and the unit shall be minimum 3 feet. (May require as much as
3 1/2 feet)
C) Walls shall not be higher than top of units.
D) National, State, and Local Codes must be observed.
E) If design outdoor dry bulb exceeds 105F (40.6C) add 1.0 Ft. to all dimensions.
A
min**
A
min**
A
min**
A
min**
A
min**
A
min**
2 B
m i n
2 B
m i n
2 B
m i n
2 B
m i n
2 B
m i n
2 B
m i n
-3.0’-
min
-3.0’-
min
3.0’
min
3.0’
min
-3.0’-
min
3.0’
min
Service Access *
Service Access *
Service Access *
Service Access *
Service Access *
* Units may be rotated in order that service access sides face each other
provided that 3 feet minimum clearance be maintained between the units.
In order to comply with NEC, this may increase to 4 feet minimum
clearance.
** If wall or fence is to be constructed around the entire perimeter of the
mechanical yard, Maintain minimum 1.5 feet clearance from the units.
The fence height shall not exceed that of the unit. It is recommended to
install louvers in the fence to allow no greater than 300 feet per minute
velocity. Consult the table on page 18 for unit airflow. Place louvers in the
lower section of the fence by each unit in order to provide air access to
each unit located by the fence. The lower portion of the fence may also be
cut in order to equal the calculated free area.
Pg. 12
A
min**
A
min**
A
min**
Service Access *
Service Access *
Service Access *
Service Access *
e
z
i
S
e
s
a
B
A
B
e
c
i
v
r
e
S
e
c
n
a
r
a
e
l
C
2
'
0
.
1
'
0
.
1
"
6
3
3
'
2
.
1
'
2
.
1
"
6
3
4
'
5
.
1
'
4
.
1
"
6
3
minimum clearance table
4. Installation of multiple units on a pad or rooftop where the top clearance is open.
The measurement 2B
indicates to multiply
the dimension B from
the minimum clear-
ance table by 2 in or-
der to determine the
approprieate minimum
distance between units.
