# 48392M005
Page 3
Before lifting a unit, make sure that the weight
is distributed equally on the cables so that it
will lift evenly.
CAUTION
Roof Curb Assembly
Figure 2
Units may also be moved or lifted with a forklift while still
in the factory-supplied packaging.
The lengths of the
forks of the forklift must be a minimum of 42".
Ductwork
Ductwork should be designed and sized according to the
methods in Manual Q of the Air Conditioning Contractors of
America (ACCA).
A closed return duct system shall be used. This shall not
preclude use of economizers or outdoor fresh air intake. It
is recommended that supply and return duct connections
at the unit be made with flexible joints.
Unit
Drain Connection
Positive Liquid Seal Required
3.00" Min.
1.00" Min.
12.00"
Max.
Typical Condensate Drain Connection
Figure 3
Roof Curb Installation
If a roof curb is used, follow the manufacturer
’
s Installation
Instructions and be sure that all required clearances are
observed (see following
Clearances
section).
Clearances
All units require certain clearances for proper operation and
service. Refer to Table 1 for the minimum clearances to
combustibles as well as minimum clearances necessary
for servicing and proper unit operation.
In the U.S., units may be installed on combustible floors
made from wood or class A, B, or C roof covering material.
In Canada, units may be installed on combustible floors.
Service Access
Access to all serviceable components is provided by four
removable panels: filter compartment, blower compart-
ment, heater compartment, and top panel.
Condensate Drain
The SA package unit is equipped with a 3/4" FPT coupling
for condensate line connection. Plumbing must conform to
local codes. Use a sealing compound on male pipe threads.
The condensate drain line must be properly trapped
and routed to a suitable drain.
See Figure 3 for proper
drain arrangement. The drain line must pitch to an open
drain or pump to prevent clogging of the line. Seal around
the drain connection with suitable material to prevent air
leakage into the return air system.
Table 1
o
T
e
l
b
i
t
s
u
b
m
o
C
l
a
i
r
e
t
a
M
r
o
F
e
c
i
v
r
e
S
r
o
F
r
e
p
o
r
P
n
o
i
t
a
r
e
p
O
t
n
o
r
F
"
0
"
8
4
"
3
r
a
e
R
"
0
"
4
2
"
3
r
e
s
n
e
d
n
o
C
d
n
E
"
0
"
4
2
"
3
r
e
w
o
l
B
d
n
E
"
0
"
0
3
"
0
p
o
T
"
0
"
6
3
"
6
3
Minimum Clearance Requirements
