Johnson Controls (H, Engineering Manual, Page: 16 / 124

FEATURES
1-6
TC-16006
Wide Operation Range
This unit has been designed for cooling operations under low ambient temperatures down to 14°F (-10°C)
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4)
.
This wide temperature range enables cooling even in winter in buildings with high internal heat resulting
from lighting, people, and machines, particularly in areas such as shops, lecture rooms, and data processing
areas. Heating units can operate under low ambient temperature down to -13°F (-25°C).
Temperature
Maximum Minimum
Cooling
Operation
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Outdoor 118
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&'% 14
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Heating
Operation
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&'% 59
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Outdoor 59
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):% (15
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ratio is 100% or more, the outdoor unit will be Thermo-OFF to protect the compressor from failure.
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F (43
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C) or more during the outdoor unit cooling operation, the
maximum connectable indoor unit capacity ratio is 100%.
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F (-5
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C) or less during the outdoor unit cooling operation, the
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temperature, (approx. 50
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exchanger of the indoor unit from being frosted.
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o
F (-10
o
C) select the combination of indoor units and
outdoor unit as the total capacity of indoor units not to exceed the capacity of outdoor unit.
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Thermo-ON: The outdoor unit and some indoor units are running.
Thermo-OFF: The outdoor unit and some indoor units stay on, but don’t run.
Cooling Operation
90/74(32/23) 70/59(21/15)
Indoor Air Inlet Temperature o F DB/WB ( o C DB/WB)
Outdoor Air Temperature
o
F DB (
o
C DB)
14(-10)
(
/
3)
50(10)
118(48)
(
/
2)
Heating Operation
80(27) -9.5(15)
Indoor Air Inlet Temperature o F DB ( o C DB)
Outdoor Air Temperature
o
F WB (
o
C WB)
-13(-25)
59(15)
Continuous Operation
Working Range (
/
1)(
/
4)
Continuous Operation
Working Range (
/
5)