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Figure 16. Controller Operation -- Perishable Mode; Figure 17. Controller Operation -- Frozen Mode - Carrier 69NT40-489-100 Series Operation And Service Manual

Everfresh controlled atmosphere. container refrigeration units
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FALLING
TEMPERATURE
MODULATING
COOLING
AIR CIRCULATION
HEATING
Figure 16. Controller Operation - - Perishable Mode
FALLING
TEMPERATURE
COOLING
AIR
CIRCULATION
ONLY
Figure 17. Controller Operation - - Frozen Mode
+2.5
C (4.5
F)
_
_
+1.5
C (2.7
F)
_
_
+1
C (1.8
F)
_
_
+0.5
C (0.9
F)
_
_
+.20
C
_
SET POINT
- -0.20
C
_
- - 0.5
C (0.9
F)
_
_
- -1
C (1.8
F)
_
_
- - 1.5
C (2.7
F)
_
_
+1.5
C (2.7
F)
_
_
+1
C (1.8
F)
_
_
+0.5
C (0.9
F)
_
_
+.20
C
_
SET POINT
- -0.20
C
_
- - 0.5
C (0.9
F)
_
_
- - 1
C (1.8
F)
_
_
- - 1.5
C (2.7
F)
_
_
49
RISING
TEMPERATURE
MODULATING
COOLING
AIR CIRCULATION ONLY
HEATING
RISING
TEMPERATURE
COOLING
AIR
CIRCULATION
ONLY
T-305

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