3–5
T-374
3.5 Enabling EverFRESH Operation
EverFRESH is activated via function code Cd71. This code allows the user to select a specific mode of operation
and the associated parameters. The modes of operation are: FrESh, OFF, and PUrgE. Within each of these modes
of operation are sub menus that have selectable parameters. Not all parameters are available in each sub menu.
When setting any mode of operation, the entire process must be followed to ensure all parameters are set. For
example, the CO
2
injection option is turned on / off under FrESH mode after passing through the CO
2
and O
2
setpoint sub menus.
3.5.1
Activate Fresh Mode to Start Up the System
In
Fresh
mode, all EverFRESH operations are enabled and setpoints for CO
2
and O
2
can be edited. The CO
2
injection parameters in the
Fresh
mode menu are only available if unit configured with the CO
2
injection option.
NOTE
The CO
2
setpoint is the level of CO
2
allowed for the cargo. The range is 1 to 19% in 1% increments,
with a default setting of 5%.
NOTE
The O
2
setpoint is the minimum level of oxygen allowed for the cargo. The range is 2 to 17% in 1%
increments; the default setting is 10%.
1. Press the CODE SELECT key on the keypad.
2. Press the Up or Down Arrow key until “Cd 71” is displayed, then press the ENTER key. The selection in the
right display will blink.
3. Press the Up or Down Arrow key until “FrESh” is in the right display, then press the ENTER key.
4. The CO
2
setpoint is displayed. “CO2SP” appears in the left display with the setpoint value blinking in the
right display. Use the Arrow keys to change the setpoint and press ENTER to confirm. Or, just press ENTER
to keep the originally displayed value.
5. Next, the O
2
setpoint is displayed. “O2 SP” appears in the left display with its setpoint blinking in the right
display. Use the Arrow keys to change the setpoint and press ENTER to confirm. Or, just press ENTER to
keep the originally displayed value.
6. Next, “CO2iN” is displayed. Use the Arrow keys to toggle between “OFF” and “On” in the right display and
press ENTER to confirm the selection. Select “On” to enable CO
2
injection or “OFF” to disable.
3.5.2
Activate Off Mode
When
Off
mode is selected, all EverFRESH operations will be disabled. The EverFRESH solenoids will be closed.
This will be the default mode anytime a setpoint less than -1°C (30.2°F) has been selected. Whenever a setpoint
less than -1°C (30.2°F) is selected, the current EverFRESH setting will be saved.
1. Press the CODE SELECT key on the keypad.
2. Press the Up or Down Arrow key until “Cd 71” is displayed.
3. Press the ENTER key. The selection in the right display will blink.
4. Press the Up or Down Arrow key until “OFF” is displayed and then press the ENTER key.
Summary of Contents for EverFRESH
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Page 56: ...T 374 5 26 4 Note the orientation of the check valve 5 Reinstall in reverse order ...
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Page 67: ...8 1 T 374 SECTION 8 SCHEMATICS DIAGRAMS STANDARD UNITS Figure 8 1 Legend Standard Units ...
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Page 70: ...T 374 8 4 Figure 8 4 Wiring Diagram Standard Units ...
Page 72: ...T 374 9 2 Figure 9 2 Schematic Units with CO2 Injection Page 1 ...
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Page 74: ...T 374 9 4 Figure 9 4 Wiring Diagram Units with CO2 Injection ...
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