View newsletter in pdf formatJune 2014
A brief description of the topics in this newsletter is provided below.
Online Alarm Code Lookup Application
In May 2014, Carrier Transicold Global Container Refrigeration released a new mobile alarm lookup web application. The application provides the basic alarm description, potential causes and repair actions. This simplifies troubleshooting and, in turn, saves technicians time by not having to find and refer to the manual.
Due to the ongoing concerns of refrigerant contamination in the container refrigeration industry, Carrier Transicold has released the CareMAX™ refrigerant management program. CareMAX stands for Carrier Refrigerant Management Certificate of Excellence, and it is an in depth review of how a refrigeration service provider purchases, manages and uses refrigerant in its day to day operations.
Over the years Carrier Transicold has published a number of articles with regard to heaters and megohm readings and when to change heaters. As part of our ongoing review of procedures, we are reissuing this procedure.
Troubleshooting Tier 4 Genset Voltage Control Circuit
The following procedures are intended to assist the technician in the electrical troubleshooting for the Tier4 Genset voltage control circuit
Troubleshooting P6-7 (DUV/DLV)
A failed digital unloader valve (DUV), which is normally closed, or an internal seal failure of the compressor can result in the unit running continually in the fully loaded mode causing it to undershoot its set point temperature.
In conjunction with our July 2012 TechLINE article (Refrigerant Quality Awareness) and the April 2014 ContainerLINE article (Anti Tamper System Assures Refrigerant Quality), Carrier Transicold has introduced an anti-tamper refrigerant seal system to help ensure a higher level of refrigerant integrity and traceability for container refrigeration systems.
Troubleshooting Humidity Sensor on PrimeLINE® Unit
In July 2011, we issued a service bulletin CTR-SER11-003 “Alarm Troubleshooting” advising service centers that if one of the listed sensors shorts, then multiple alarms could occur due to the failed sensor consuming the available power.
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.