Carrier VECTOR 1800 MT - Page 75

62-110393-25
FUNCTIONAL
PARAMETER
DESCRIPTION
SELECTIONS
FROZEN SHUT-
DOWN OFFSET
0°F(0°C)
TO
3.6
°F(2°C)
(in 0.5°ForC incre-
ments)
This only applies to Frozen Setpoints in Start--Stop operation.
This offset is the number of degrees below setpoint that the unit will
run before cycling off. This will allow for a lower average refrigerated
compartment temperature when considering temperature rises during
off cycles.
TEMP CONTROL:
Compartment 1
Only
RETURN AIR
SUPPLY AIR
Compartment 1 evaporator has both a Return Air Sensor and a Supply
Air Sensor. This selection determines which sensor temperature will
be used for setpoint selections above 10°F (--12.2°C) to determine
when setpoint is reached.
Return Air is generally selected for most products. Products that are
sensitive to small temperature changes may use the Supply Air set-
ting.
Supply Air limits the temperature of the air leaving the evaporator to
the setpoint setting.
PERISH
SENSITIVE
PRODUCT
OFF
ON
Used to determine the supply air temperature limit in cool mode when
return air control is selected.
OFF -- 32°F(0°C) or colder depending on the pre set limit.
ON -- setpoint minus the selected limit value [0 to 21.6°F(0to12°C)]
DISPLAY IN ENGLISH UNITS
METRIC UNITS
The display will show temperatures & pressures in either English (°F&
PSIG) or Metric (°C&Bar)
ECO MODE NO
YES
NO -- Normal temperature control operation
YES -- Fuel saving operation
* RESET PM HOURMETERS
Maintenance Hour Meters that are enabled will appear in this list.
RESET PM
HOURMETERS
NO METERS TO
RESET
OR
Expired Hourmeters
When the Hour Meter has timed out, and preventative maintenance
h
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=
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--
S ELECTRIC
STANDBY
RESET
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=
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--
activate the alarm, and reset the Hour Meter for the next service inter-
v
a
l
S SWITCH ON RESET
v
a
l
.
S PM 1 Thru 5 RESET
OUTOFRANGE
ALARM:
(For
compartment 1)
English Metric
OFF OFF
4
°
F
2
°
C
Once the unit is at setpoint, then drifted away for more than 30 min-
utes, an Out--Of--Range Alarm
will come on. (Or, if configured for Out
Of Range Shutdown, after 45 minutes the unit will shut down.) This
t
t
i
d
t
i
h
f
f
t
i
t
t
h
t
t
t
C2 OUT OF
RANGE ALARM:
4°F2°C
5°F3°C
7
°
F
4
°
C
g
,
)
setting determines how
f
ar away
f
rom setpoint the temperature must
move before the timer is started. 4°F(2°C) may be used for very criti-
c
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l
t
e
m
p
e
r
a
t
u
r
e
p
r
o
d
u
c
t
s
7
°
F
(
4
°
C
)
m
a
y
b
e
u
s
e
d
f
o
r
l
e
s
s
c
r
i
t
i
c
a
l
p
r
o
d
-
C3 OUT OF
RANGE ALARM:
7
°
F
4
°
C
ca
l
t
empera
t
ure pro
d
uc
t
s,
7
°
F
(
4
°
C
)
may
b
euse
d
f
or
l
ess cr
i
t
i
ca
l
pro
d
-
ucts. The alarm may be turned off by selecting the OFF setting.