Recommendation Date
Recipient Name
Toll NZ Consolidated
Text
include in the 12-monthly C-check an additional test to establish that adequate cooling has been achieved within all areas of the generator enclosure with all covers in place after the generator has run under load continuously for about 45 minutes.
Reply Text
We do not accept this recommendation. Overheating investigations carried out have shown that with the air intake filter and fan removed, the AL generator sets get sufficient cooling air flow under all conditions and that generator enclosure temperatures remained well within reasonable limits. Additionally the engines are protected with an overheat detector that shuts down the DA set and brings up an annunciator LED on the control panel if overheat conditions are occurring. Therefore we do not intend to implement this recommendation.
Related Investigation(s)