Carrier XtendFRESH, Operation, Service And Parts Manual

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6–13 T-366
3. Then go to Code Select Cd43 and arrow select “tESt” mode. Refer to Section 4.5.3 .
4. Select “tESt”. On selection a mechanical component operational test which is visual inspection, followed by
a CO
2
calibration and O
2
sensor check.
Refer to Cd43 Test Mode described under Section 4.5.3 for description of mechanical and sensor tests.
CAUTION
!
DO NOT RUN THE CAL SELECTION UNDER LOADED CONDITIONS
5. On completion of the Cd43 test, prepare the box for an air leak test.
6. Check the defrost drain hose for any damage and ensure that the trap is filled with water.
7. Reinstall the upper back panel and ensure the floor drains within the container are sealed.
8. Ensure the manual fresh air panel is closed tight and that the warning label is in place on the unit.
Figure 6.19 Warning Label
9. Check air tightness of the box following the Box Checkout/Leak Test procedure. Refer to Section 6.11.1 .
The box must meet or exceed the air tightness requirement.
10.Load cargo, install the new curtain and select the desired O
2
and CO
2
levels via Code Select Cd43 “FrESh”
modes. Refer to Section 4.5.1 .
11. Immediately after the cargo is loaded it is recommended to perform a second leak test on the box.
6.11 CONTAINER PREPARATION
Check the rear container doors and door handles for proper operating condition. Check for proper installation of
labels on the container and refrigeration unit. Always visually check the inside of the container for occupants prior
to closing the doors.
6.11.1 Box Checkout/Leak Test
When using the XtendFRESH system, the box must conform to leak rates in order to maintain control of the O
2
and
CO
2
setpoints. The minimal box requirement is a pressure decay of 2 inch WG (50mm) to 1 inch WG (25mm) of
eight minutes or more for a 40 foot container and four minutes or more for a 20 foot container. It is recommended
that it be checked prior to the voyage.
To perform this check some units may be equipped with two pressure connection ports on the front of the unit. If
the ports are not available then a Manual Fresh Air panel (part number 79-04098-00) with two Schrader ports
should be installed.