Railroad Forums
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Mark Schweber wrote:There are many types of freon. R12 freon production was banned by the Montreal Protocol in the early nineties. It was replaced by R134a freon for non-hermetic applications like autos and coaches. And it is this freon that is leaking from many Comet5s.And our newest white elephants, the Comet5s, are already notorious freon leakersI doubt they have freon. Freon was banned befort the cars went into service. It would be the freon replacement they use now. Which in and of itself is not as efficient a coolant.
ABCD wrote:The Comet V's are still using R22 freon which is still legal to produce until I think the year 2010.Why did the Comet5s revert to R22 when the Comet4s use R134a which seems to work great? And were these roof mounted units really a good idea? It seems like they bear the brunt of the 27kv EMF on the Hoboken Division.
Why did the Comet5s revert to R22 when the Comet4s use R134a which seems to work great? And were these roof mounted units really a good idea? It seems like they bear the brunt of the 27kv EMF on the Hoboken Division.I think R22 is in fact better, it has been around forever and used in most all household appliances and air conditioning.
ABCD wrote: I read on here awhile back an article from your newspaper where Walter Cross (a NJT Honcho) said they wanted the A/C set up this way for interchangability.Not my newspaper!! I don't propagate NJ Transit's dogma!! I work for a living!!
DutchRailnut wrote:On a standard older car the AC is broken till car can be physically fixed in shop.Wow! You don't work for NJ Transit, do you? Coffee breaks take 1/2 an hour at the MMC and that's about it. Even the slightest "repairs" take days, even weeks.
With the C5's a car can be brought in shop, the bad unit lifted out and good unit put in and in half hour be out the door with exchange unit in place.
With the C5 earning its keep while shop forces are fixing the spare AC unit, with both systems having about 80% of full load, even the shut down of one system does keep a car at least torerable.
thebigc wrote:So ALMOST knew these HVAC units were so lousy they figured they'd better allow easy changeouts?!? How thoughtful.Hey BigC, is that a joke or have you become dislexic? If that's a joke, it's pretty funny! (No offence ABCD.)