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3-9
62--611XX--20 (03/04)
+1.5
_
C
+1
_
C
--0.3
_
C
--1
_
C
+1.3
_
C
+0.8
_
C
--0.5
_
C
--1.5
_
C
LS COOL
NULL
LS HEAT
HS HEAT
HS COOL
On start/stop, the diesel engine
stops when all compartments
are in null. It restarts when any
one of the compartment reaches
autorestart preset conditions.
Perishable set point > --12
˚
C
PERISHABLE RANGE
CONTINUOUS & START/STOP
Electrical heating for
non lead compartment
Figure 3-1 Temperature Controller Operating Sequence (Perishable Range)
Controller Set Point Above --12
_
C (+10
_
F)
PERISHABLE RANGE
CONTINUOUS in LEAD
compartment
LS COOL
LS HEAT
HS HEAT
HS COOL
+1.5
_
C
+0.2
_
C
--1
_
C
+1.3
_
C
--1.5
_
C
Perishable set point > --12
˚
C
Hot gas heating for
lead compartment
Figure 3-2 Temperature Controller Operating Sequence “Lead” Evaporator
(Perishable Range) Controller Set Point Above --12
_
C (+10
_
F)