5169034-UIM-B-0216
2
Johnson Controls Unitary Products
SAFETY REQUIREMENTS
1.
Failure to carefully read and follow all instructions in this manual
can result in air handler malfunction, death, personal injury and/or
property damage.
2.
This air handler should be installed in accordance with all national
and local building/safety codes and requirements, local plumbing or
wastewater codes, and other applicable codes.
3.
This air handler should be installed only in a location and position
specified in the “Unit Installation” section of this Instruction Manual.
4.
The air handler is not to be used for temporary heating of buildings
or structures under construction.
5. Always install the air handler to operate within the air handler’s
intended maximum outlet air temperature.
6.
The unit rating plate displays the air handler model number. The
unit dimensions for the supply air plenum are provided in Figure 5
and Table 1 of this Instruction Manual. The plenum must be
installed according to the instructions. The return air duct attach-
ment is shown in Figure 1.
7.
Clearance from combustible material is provided under “Clear-
ances” in the “Unit Installation” section.
8.
It is necessary to maintain clearances for servicing. Access must be
allowed for electric heaters and blower.
9.
The unit rating plate and power supply must be verified to ensure
that the electrical characteristics match.
10. Air handler shall be installed so the electrical components are pro-
tected from water.
11. Installing and servicing heating/cooling equipment can be hazard-
ous due to the electrical components. Only trained and licensed
personnel should install, repair, or service heating/cooling equip-
ment. Unlicensed service personnel can perform basic mainte-
nance functions such as cleaning and replacing the air filters. When
working on heating/cooling equipment, the precautions in the man-
uals and on the labels attached to the unit and other safety precau-
tions must be observed as applicable.
12. These instructions cover minimum requirements and conform to
existing national standards and safety codes. In some instances
these instructions exceed certain local codes and ordinances,
especially those who have not kept up with changing residential
and non-HUD modular home construction practices. These instruc-
tions are required as a minimum for a safe installation.
INSPECTION
As soon as a unit is received, it should be inspected for possible dam-
age during transit. If damage is evident, the extent of the damage
should be noted on the carrier’s freight bill. A separate request for
inspection by the carrier’s agent should be made in writing. Also, before
installation the unit should be checked for screws or bolts, which may
have loosened in transit. There are no shipping or spacer brackets
which need to be removed.
It should be verified that all accessories such as heater kits and coils
are available. Installation of these accessories or field conversion of the
unit should be accomplished before setting the unit in place or
connecting any wiring, duct work or piping.
SECTION III: UNIT INSTALLATION
UNIT SIZING
1.
The size of the unit should be based on an acceptable heat loss or
gain calculation for the structure. The ACCA – Manual J or other
approved methods may be used. Reference Figure 5 and Table 1.
2.
Only connect the air handler to a duct system which has an external
static pressure within the allowable range.
3. Airflow must be within the minimum and maximum limits approved
for electric heat, indoor coils and outdoor units.
4.
When an air handler is installed so that supply ducts carry air circu-
lated by the air handler to areas outside the space containing the
air handler, the return air shall also be handled by duct(s) sealed to
the air handler casing and terminating in the space to be cooled/
heated.
5.
Refer to the unit rating plate for the air handler model number, and
then see the dimensions page of this instruction for supply air ple-
num dimensions. The plenum must be installed according to the
instructions.
6.
The installer must check available supply power and verify that it is
within the normal operating voltage range for the unit. The accept-
able voltage range for these units is as follows:
CLEARANCES
Clearances must be taken into consideration, and provided for as
follows:
1.
Maintenance and servicing access - minimum 36” from front of unit
recommended for blower motor / coil replacement.
2.
The duct work connected to this unit is designed for zero clearance
to combustible materials.
3. A combustible floor base accessory is available for downflow appli-
cations of this unit, if required by local code.
CAUTION
These air handlers should be transported & handled in an upright,
upflow position. Failure to do so may result in unit damage and per-
sonal injury. Configuration conversions should be done at site of
installation.
FIGURE 1:
Return Air Duct Attachment
!
S
IDE VIEW
RETURN AIR
DU
C
T
A
0
3
9
8-
001
Wh
en
atta
ch
ing
du
c
t
wo
r
k w
it
h
s
c
re
w
s
- k
ee
p
s
c
re
w
s
w
it
h
in
5/8”
o
f
sides
and
b
a
ck o
f
air
h
and
l
er
.
Entering Air Temperature Limits
Wet Bulb Temp.°F
Dry Bulb Temp. °F
Min.
Max.
Min.
Max.
57
72
65
95
Air Handler Voltage
Normal Operating
1
Voltage Range
1. Rated in accordance with ARI Standard 110, utilization range “A”.
208-230-1-60
187-253
