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LOCATION REQUIREMENTS
To achieve optimum performance and trouble-free
service, it is essential that the proposed installation site
meet with the location and space requirements for the
model being installed.
The clearances recommended are nominal for the safe
and efficient operation and maintenance of the unit
and power and control panels. Local health and safety
regulations, or practical considerations for service
replacement of large components, may require larger
clearances than those given in this manual.
OUTDOOR INSTALLATIONS
The units can be installed at ground level on a suitable
and level foundation easily capable of supporting the
weight of the unit, or on a suitable rooftop location. In
both cases an adequate supply of air is required. Avoid
locations where the sound output and air discharge from
the unit may be objectionable.
The location should be selected for minimum sun
exposure and away from boiler flues and other sources
of airborne chemicals that could attack the ambient coils
and steel parts of the unit.
If located in an area accessible to unauthorized persons,
steps must be taken to prevent access to the unit by
means of a protective fence. This will help to prevent
the possibility of vandalism, accidental damage, or
possible harm caused by unauthorized removal of
protective guards or opening panels to expose rotating
or electrically live components.
For ground level locations, the unit must be installed
on a suitable flat and level concrete base that extends
to fully support the two side channels of the unit
base frame. A one-piece concrete slab with footings,
extending below the frost line is recommended. To avoid
noise and vibration transmission, the unit should not be
secured to the building foundation.
On rooftop locations, choose a place with adequate
structural strength to safely support the entire operating
weight of the unit and service personnel. The unit can
be mounted on a concrete slab, similar to ground floor
locations, or on steel channels of suitable strength.
The channels should be spaced with the same centers
as the unit side and front base rails. This will allow
vibration isolators to be fitted if required. Isolators are
recommended for rooftop locations.
JOHNSON CONTROLS
INSTALLATION
LOCATION CLEARANCES
Adequate clearances around the unit(s) are required
for the unrestricted air-flow for the ambient coils and
to prevent re-circulation of discharge air back onto the
coils. If clearances given are not maintained, air-flow
restriction or re-circulation will cause a loss of unit
performance, an increase in power consumption, and
may cause the unit to malfunction. Consideration should
also be given to the possibility of down drafts, caused
by adjacent buildings, which may cause re-circulation
or uneven unit air-flow.
For locations where significant cross winds are expected,
such as exposed roof tops, an enclosure of solid or
louvre type is recommended to prevent wind turbulence
interfering with the unit air-flow.
When units are installed in an enclosure, the enclosure
height should not exceed the height of the unit on more
than one side. Where accumulation of snow is likely,
additional height must be provided under the unit to
ensure normal air-flow to the unit.
Arrangement
A1
Solid Walls
Arrangement
A2
Solid Walls
Arrangement
A3
Louvres on
2 walls
Arrangement
A4
Solid Walls
Arrangement
A5
Louvres on
2 walls
FORM 150.68-ICOM1
ISSUE DATE: 10/15/2020
YLPA
Dim.
(in)
0115SE 0145SE 0170SE
A
47
47
47
B
32
32
32
C
32
39
47
D
55
55
55
A
47
47
47
B
32
32
32
C
32
39
47
D
106
126
126
E
55
55
55
A
47
47
47
B
32
32
32
C
32
39
47
D
91
118
126
E
55
55
55
A
47
47
47
B
47
47
47
C
32
32
32
D
32
39
47
E
67
75
83
A
47
47
47
B
47
47
47
C
32
32
32
D
32
32
32
E
55
55
55
19
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