Carrier XtendFRESH Operation, Service And Parts Manual

Also see for XtendFRESH: Operator's guide

Contents

Carrier XtendFRESH Operation, Service And Parts Manual Manual pdf 16 page image

T-366 4–23. Press the UP or DOWN arrow key until “FrESh” mode 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 theright display. Use the arrow keys to change the setpoint and press ENTER to confirm. Or, just press ENTERto keep the originally displayed value.NOTEThe CO 2 setpoint is the maximum level of CO 2 allowed for the cargo. The range is 0% to 19% in 1%increments, with a default setting of 5%.5. Next, the O2 setpoint is displayed. “O2 SP” appears in the left display with its setpoint blinking in the rightdisplay. Use the arrow keys to change the setpoint and press ENTER to confirm. Or, just press ENTER tokeep the originally displayed value.NOTEThe O2 setpoint is the minimum level of oxygen allowed for the cargo. The range is from 3% to 21% in1% increments; the default setting is 10%.4.5.2 Make Off Mode ActiveWhen OFF mode is active, all XtendFRESH operations will be disabled. The XtendFRESH vents will be closed andthe scrubber will remain off. This will be the default mode anytime a frozen mode of operation has been selected.Whenever a frozen setpoint is selected, the current XtendFRESH setting will be saved.1. Press the CODE SELECT key on the keypad.2. Press the UP or DOWN arrow key until “Cd43“ 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” mode is displayed and then press the ENTER key.4.5.3 Make Test Mode ActiveWhen tESt mode is active, the operator has the ability to test system operation of the mechanical components, andtest the calibrate the CO 2 sensors and verify the validity of the O2 sensor.1. Press the CODE SELECT key on the keypad.2. Press the UP or DOWN arrow key until “Cd43“ is displayed.3. Press the ENTER key. The selection in the right display will blink.4. Press the UP or DOWN arrow key until “tESt” mode is displayed and then press the ENTER key.5. After tEST mode is selected, “tESt” in the right display will blink. Press the ENTER key as it is blinking toenter the system tests.tESt - Mechanical TestsDuring a mechanical test, the fresh air solenoids will open for 8 seconds and then close, followed by theblower fan(s) and scrubber motor turning on for 60 seconds. Visual inspection of each occurrence isrequired. On units configured to read the scrubber motor output indicator, a message of “Scrub” PASS” willbe posted if the scrubber motor is rotating. If not, “Scrub” “FAIL” will appear.If the unit is equipped with the Vent Position Sensor (VPS) option, you need to manually check the opera-tion of the VPS switch. Refer to Section 6.9.1 for additional information.