Carrier SUPRA 950Mt - Page 36

2
-
2
4
6
2
-
-
6
1
1
X
X
-
-
2
0
(
0
3
/
0
4
)
de
fro
st
sw
itc
h
wi
ll
ov
err
id
e
thi
s
mo
de
an
d
sta
rt
a
ne
w
45
minute cycle. When defrost override is active, the ap-
pro
pri
at
e
al
armwillbe
in
di
ca
ted
.
If
th
e
ru
n
re
la
y
isde-e
n-
ergize
d
during defrost, defrost
is terminated.
2.8
.1
1
Cont
inuou
s
or
Sta
rt/
Sto
p
Oper
ati
on
Mi
cro
un
its
ha
ve
two
ba
si
c
op
era
tin
g
mo
de
s
:
co
nti
n-
uous or start/stop. Selection is possible either in both
engine or standby mode operation.
Co
nti
nu
ou
s
mo
de
is
ad
eq
ua
te
wh
en
lo
ad
typ
e
re
qu
i-
red constant airflow for better conservation. Control of
temperature is done by alternate cooling or heating of
the supply air
aroun
d
setpoi
nt.
Start/stop mode provi
des
an ene
rgy efficien
t alterna-
tive to continuous operation by automatic cycling (off or
on) the diesel engine or standby motor near setpoint.
a.
Auto Sta
rt/St
op - Continuous
NOTE
When configuration CNF11 is “ON” and setpoint is 32
to42
_
F (0to5.5
_
C)
the
uni
t
is
loc
ked
intocontin
uou
s
run. Start/Stop
Contin
uous key
is disabled.
A
key is
provid
ed to
select between continuo
us run
and auto start/stop operating mode. In the continuous
run mode, the diesel engine will not shut down except
for safeties or if the
engin
e stalls. This function also
ap-
ply to the operation of the electric motor.
b.
Auto Mode
Indicator
The “Auto start/stop” light is lit to indicate the auto
start/stop mode has
been selected
.
c.
Auto St
art f
ailure
If
th
e
un
it
fa
il
s
to
st
ar
t,
sh
ut
s
do
wnon
a
sa
fe
ty
,
orfai
ls
to
run for
the minim
um
run time,
thre
e
con
sec
utiv
e
times, the “Start/Fail” alarm is activated.
2.8
.12
Opti
onal
cont
rol
pane
l
User-friendly indicator and operator control panels
clearl
y
show
indivi
dual
compa
rtment tem
perature
s
with
easy-to-read displays.
These compact panels can be mounted to suit the
individual operator’s preferences.
(E
xa
mp
le
:
on
th
e
fr
on
t
bu
lk
he
ad
,
in
th
e
ca
b
or in
th
e
refrigerated compartment -- including mounting in the
truck wall itself.)
1. Compartment ON/OFF key
2. Control panel power on light
3. Unit ON/OFF key
4. Manual defrost key
5.
Control panel locking light
6. Up and down arrow keys
7. Heating operating mode light of a compartment
8. Cooling operating mode light of a compartment
9. Temperature indicated in
_
C
or
_
F
3.
4.
1.
6.
8.
7.
2.
9.
5.
D
Control panel
From this control panel (option) you can :
-
switch on the unit
-
check compartement 1, 2 or 3 temperatures
-
change setpoints
-
energize a manual defrost ( refer to Section
1.8.11 )
-
The detailed control panel fonctioning is
explai
ned in
Section 2.4.2
d.
Auto Star
t Sequence (E
ngine mode)
NOTE
Th
e
un
it
is
in
He
at
mo
de
fo
r
th
e
30
s
pr
io
r
to
en
er
gi
si
ng
the start sequence and 30s after unit start, in engine
standby mode.
When the starting conditions are met, the start se-
quence will begin by energizing the run relay, and after
5
se
co
nd
s
en
er
gi
ze
the
gl
ow
pl
ug
re
la
y
(GP
R)
to
su
pp
ly
po
we
r
to
the
gl
ow
pl
ug
s, and
5 seco
nd
s
la
ter the
sta
rte
r
is energized. On initial power-up, the control will delay
5
sec
ond
s
befo
re
the
star
tingseque
ncebegin
s.
If
there-
quired glow time is zero, the control will energize the
st
ar
te
r
af
te
r
a
5
se
co
nd
de
la
y
.
Af
te
r
a
pe
ri
od
of
ti
me
,
th
e
starter solenoid (SS) is energized to crank the engine.
The engine will crank for 10 seconds or until engine o-
peration is sensed by the alternator signal. The glow
relay is de-energized after the auxiliary input is sensed