munirabbasi Posted May 28, 2014 Share Posted May 28, 2014 air condition conrol panel ,under floor switch should be off engine starting or switching generator one to other other wise GCP burnt out why it is so Quote Link to comment Share on other sites More sharing options...
larry myers Posted May 29, 2014 Share Posted May 29, 2014 Attempting to start the first engine using the GTC with air conditioning or underfloor heat on will most likely result in a slow, bogged, hot start. The GTC's compressed air output is insufficient to simultaneously power the engine starter and other pneumatic subsystems. Watch what the bleed air system pressure gage does at starter engagement. Can't speak to your GCP issue, but question why anyone would be switching generators on engine start. Quote Link to comment Share on other sites More sharing options...
munirabbasi Posted May 30, 2014 Author Share Posted May 30, 2014 While engine starting under fllor heating fan should OFF when switching generator one to other failure to comply GCP will damage Why ? Quote Link to comment Share on other sites More sharing options...
larry myers Posted May 30, 2014 Share Posted May 30, 2014 While engine starting under fllor heating fan should OFF when switching generator one to other failure to comply GCP will damage Why ? munisrabbasi, Couple of days ago in the Tips and Tricks Forum you posted the same query. You had a response that, in part, answered your question. Quote Link to comment Share on other sites More sharing options...
tinyclark Posted May 31, 2014 Share Posted May 31, 2014 The same caution is in the Job guides CAUTION: The underfloor heat switch must be off during engine starting and switching of loads from one generator to another. Failure to comply could result in a burned out generator control panel. I don't know why the GCP would be damaged, but since the caution is still in the book, it should be followed. Quote Link to comment Share on other sites More sharing options...
Guest Posted May 31, 2014 Share Posted May 31, 2014 munisrabbasi, Couple of days ago in the Tips and Tricks Forum you posted the same query. You had a response that, in part, answered your question. I have merged the posts. Quote Link to comment Share on other sites More sharing options...
n1dp Posted May 31, 2014 Share Posted May 31, 2014 I remember when this showed up on the H models with the larger air packs. I always assumed the newer circulation fan was just too much of a load to intentionally switch between generators during start up. Quote Link to comment Share on other sites More sharing options...
munirabbasi Posted June 2, 2014 Author Share Posted June 2, 2014 please ask to any electrical expert Quote Link to comment Share on other sites More sharing options...
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