Table 3-2 Functional Parameters - Carrier VECTOR 6500 Operation & Service Manual

PARAMETER
FUNCTION
SELECTIONS
NOTES:
Selections in BOLD are the default settings. Also, Functional Parameter marked with an asterisk (*) may
not display in the list for this unit, depending on how the microprocessor has been configured.
ON
SILENT MODE
OFF
DEFROST IN- 1.5HRS
TERVAL TIMER 3HRS
SET FOR 6HRS
12HRS
Time and Temperature values that control Start-Stop Operation are set in this section.
The microprocessor may be configured so that: 1. the same settings apply to any set point = "Together", or 2. the set-
tings are different, depending on whether the set point is in the perishable range or in the frozen range = "Separate".
SIf "together" is configured, there will be five settings with only the fifth applicable to just frozen range.
SIf "Separate" is configured there will be nine settings four labeled perishable and five labeled frozen.
S MIN RUN 4MINS
TIME: TO
60MINS
(in 1 minute incre-
ments)
S MIN OFF 10MINS
TIME: TO
90MINS
20MINS
(in 1 minute incre-
ments)
S RESTART °
0.5 F (2
TEMPERATURE
TO
°
18 F (10
°
5.5 F (3
(in 0.5°F or C incre-
ments)
S OVERRIDE °
3.6 F (2
TEMP:
TO
°
18 F (10
°
11 F (6
(in 0.5°F or C incre-
ments)
S MAX OFF OFF
TIME: 10MINS
TO
255MINS
(in 1 minute incre-
ments)
5
S FROZEN 0 C (0
SHUTDOWN TO
°
OFFSET 2 C (3.6
(in 0.5°F or C incre-
ments)
62-11389

Table 3-2 Functional Parameters

OFF - Normal engine speed operation.
On - Forced low engine speed operation. Used to disable high speed.
The defrost timer will automatically put the unit into the defrost cycle at
the interval selected if DTT is below 40°F (4.4°C).
Shorter times are generally used for warm, humid products like pro-
duce.
Longer times can be used for dry and frozen products.
NOTE: the the timer increments time toward the next defrost only
when the DTT is below 40°F and the unit is running.
Set Start-Stop Parameters
This determines the minimum length of time the unit will run every time
the unit starts in Start-Stop Operation.
This determines the minimum length of time the unit will remain off
whenever the unit cycles off in Auto Start-Stop Operation.
° Following the Minimum Off Time, should the compartment temperature
C)
drift this far above or below set point in the Perishable Range or above
set point in the Frozen Range, the unit will restart.
°
C)
°
C)
° This selects the override temperature for the Minimum Off Time por-
C)
tion of the Auto Start-Stop Off Cycle. During the Minimum Off Time,
should the compartment temperature drift this far above or below set
°
C)
point in the Perishable Range, or above set point in the Frozen Range,
°
C)
the microprocessor will override the Minimum Off Time, and restart.
OFF = There is no maximum off time.
When a minute value is selected, this is the longest amount of time the
unit will remain off during a (Perishable or Frozen or both) Auto
Start-Stop Off Cycle. When this time expires, the unit will restart and
run for the Minimum Run Time, regardless of any temperature change
inside the compartment.
This only applies to Frozen set points in Start-Stop operation.
°
F)
The system generally will allow an off cycle when the RAT is 0.5°F
° (0.3°C) above set point. This offset is the number of degrees below
F)
the 0.5°F (0.3°C) value that the unit will run before cycling off. This will
allow for a lower average compartment temperature when considering
temperature rises during off cycles.
DESCRIPTION
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