The specification below provides the recommended improvements needed to improve product durability. They are ranked from bronze to gold based on the effectiveness of the change in improving durability, with bronze being the minimum and gold being the maximum.
Easily repairable; specified for 21,000 hr operation
Specified for 27,000 hr operation
Specified for 33,000 hr operation
Ask for clear evidence of meeting the requirements listed above:
* Compressor test method: 10 compressors to be specified and tested to ensure that they operate for at least the specified hours of normal fridge-freezer operation (i.e. simulated cycling on and off load, 15 times every simulated 24 hour period, i.e. on-off every 1.6 hr with a short (e.g. 2 minute) break; @ 20 degrees C ambient) without failure or reduced performance in 100% of cases.
A cycling on and off endurance test should be carried out for 500,000 switching cycles, in line with the DIN 8974 (1975-08) standard.The compressor should operate for 2,000 uninterrupted under a high temperature test, in line with the DIN 8974 (1975-08) standard.,/p> The fan motor should be run for 15 days uninterrupted. 72 hours later, it should be able to withstand an electrical strength test (as per IEC 60335 Part 2-24 Annex AA).
# WRAP research suggests that consumers expect a lifetime of 8 years.
Improved reliability of components can reduce early returns and improve brand reputation which, in turn, can lower business costs and increase long-term sales.
To calculate overall cost savings for your business, use the WRAP cost/benefit analysis tool (currently in draft form and available on request).
Basic compressor with testing (7 years)
A basic design to last at least 7 years, with the required testing, should be possible to purchase off the shelf.
Mid range compressor with testing (9 years)
The compressor is the single most expensive electro-mechanical item on a fridge freezer. Higher quality components and construction and additional testing time will help to increase product reliability.
High quality compressor with testing (11 years)
Long lasting compressors, guaranteed to last over 11 years. The most reliable compressors include those with brushless motors and ‘linear’ design.