Carrier SUPRA 950Mt - Figure 3-3 Temperature Controller Operating Sequence (Frozen Range); Figure 3-4 Temperature Controller Operating Sequence Lead Evaporator

3-10
+2
_
C
+0.5
_
C
--3
_
C
--4
_
C
+1
_
C
--4
_
C
--5
_
C
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.
Frozen set point < --12
˚
C
FROZEN RANGE
CONTINUOUS & START/STOP
LS COOL
NULL
LS HEAT
HS HEAT
HS COOL
Electrical heating for
non lead compartment
Figure 3-3
T
empera
ture Controlle
r Operating Sequence (Frozen Range)
Controller Set Poin
t Below
-
-12
_
C (+10
_
F)
+2
_
C
--0.5
_
C
--4
_
C
+1
_
C
--1.5
_
C
--5
_
C
Frozen set point < --12
˚
C
FROZEN RANGE
CONTINUOUS in LEAD
compartment
LS COOL
LS HEAT
HS HEAT
HS COOL
Hot gas heating for
lead
compartme
nt
Figure 3-4
T
emper
ature Controlle
r Operating Sequence “Lead” Evaporator
(Frozen Range) Con
troller Set Point Below
-
-12
_
C (+10
_
F)