Table 1: Application limitations
Ambient air temperature on outdoor coil (°F) Air temperature on indoor coil (°F)
Model Minimum DB Maximum DB Minimum DB Maximum DB
YC2E/TCE2B/RAC143 55 125 57 72
• The unit must not be operated at outdoor
temperatures below 55°F without an approved low
ambient operation accessory kit installed.
• The maximum allowable line length for this product
is 80 ft. To install more than the maximum allowable
line length, consult the Piping Application Guide (P/
N 247077).
Unit installation
Location
Before starting the installation, select and check the
suitability of the location for both the indoor and outdoor
unit. Observe all limitations and clearance requirements.
The outdoor unit must have sufficient clearance for air
entrance to the condenser coil, air discharge, and service
access. See Figure 1 and Figure 2.
NOTICE
For multiple unit installations, units must be spaced a
minimum of 24 in. (61 cm) apart (coil face to coil face).
If the unit is to be installed on a hot sun-exposed roof or
a paved ground area that is seasonally hot, the unit must
be raised sufficiently above the roof or ground to avoid
taking the accumulated layer of hot air into the outdoor
unit.
If the system is being installed during seasonally cold
weather of 55°F or below, the preferred method is
to weigh in the charge. For charging or checking the
system charge at 55°F or below, see the Optional
cold weather charging procedures near the end of
the System charge section. There is an optional cold
weather charging accessory kit to prevent the outdoor
unit from taking in cold air below 55°F. The kit part
number can be found in the list of accessory kits at
www.simplygettingthejobdone.com.
Provide adequate structural support for the unit.
R-410A Outdoor Split-System Air Conditioning6
Johnson Controls Ducted Systems
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