View newsletter in pdf formatDecember 2010
A brief description of the topics in this newsletter is provided below.
Carrier Audits Authorized Service Centers
Carrier Transicold partnered with its nearly 420 Authorized Service Centers (ASCs) around the world to continuously improve customer satisfaction. To guide and monitor this process, Carrier’s dedicated field service managers (FSMs) regularly audit ASCs in the global network.
Carrier Transicold recently received reports about a white powder found on the inside of a container and on the reefer unit evaporator stator and fan deck. Analyses by Carrier Transicold environmental specialists have identified the white powder as consisting predominantly of aluminum oxide.
DPRV Removal for ThinLINE® Units
In the August 2010 issue of TechLINE, we announced the removal of the Discharge Pressure Regulator Valve (DPRV). For detail on the removal please refer to (Volume 16 #1, ThinLINE® Unit DPRV Removal TechFact). As a follow-up to customer inquires about DPRV removal, we are establishing a low cost replacement kit (tubing) if the DPRV needs to be replaced.
Listed below are the most current software release versions for operating and working with Carrier Transicold container units. Prior to upgrading units you should seek agreement from the equipment owners.
Is there an aftermarket retrofit kit available to convert a single speed genset to a Carrier Transicold Fuel Wise™-equipped genset (dual speed operation)? Answer: Yes. Introduced in 2008 for both PowerLINE® undermount and clip-on generator sets, the FuelWise option delivers fuel efficiency boosts of up to 37 percent, depending on conditions, cargo and the refrigeration unit being used.
Evaporator Motor / Controller Replacement
Can an evaporator motor failure result in a controller failure? Answer: Yes. These motors follow an industry standard of having a low voltage internal protector (IP) buried within the high voltage windings of the motor. The internal protector opens its contact when it senses excessive heat is being generated by the motor. By opening the IP, the 24 vac control voltage supplied through the controller relay to the 24 volt contactor is removed, de-energizing the motor contactor, preventing the motor from further overheating.
Controller Battery Replacement
:Is there a battery replacement for the Real Time Clock Battery inside the ML3 controller? Answer: Yes. The replacement part number for the Real Time Clock Battery exists for both the ML2i (p/n 09-00369-00) and ML3 controllers (p/n 09-00375-00).
An “out-of-range” alarm (AL72) was added to the alarm list with software version 5348. It will be activated if the unit first goes in-range for 30 minutes and then out of range for a continuous 120 minutes. The alarm is deactivated by a power cycle, when control temperature comes in-range or while the unit is in any Pre-Trip mode.
Each Service Center Manager will receive an email asking them to complete a survey about the training that Carrier Transicold conducts each year.