Why are some Tangara's so hot inside

 
  CMTheTrainGeek Locomotive Fireman

Location: Waiting at Revesby...
hey there, another noob question

a few times when travelling on a Tangara i noticed that it was quite hot inside the train.
(it was 19 degrees outside) i found a thermometer and it said 35 degrees. is there a reason that Tangaras get hot and stuffy?

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  bjwh86 Chief Train Controller

The heating would be on, i notice the temperature in some does not change regardless of outside temps
  Jahommed Chief Train Controller

Location: Sydney
Also in the summer, when the air conditioning fails (not as rare as you think), you've basically got an oven with many seats.
  sydnytrains Chief Commissioner

Location: McDonalds Front counter serving customers
I've been on many T sets with failed A/C during summer times. They're like a boxed S set featuring dry heat and the only way you can cool yourself is by fanning yourself with something, whether it'd be a book, your hand or your phone. But with the A/C on, they're the most coldest train to ever travel on sometimes. But I much prefer heat so faulty A/C's won't bother me.
  matthewg Train Controller

hey there, another noob question

a few times when travelling on a Tangara i noticed that it was quite hot inside the train.
(it was 19 degrees outside) i found a thermometer and it said 35 degrees. is there a reason that Tangaras get hot and stuffy?
CMTheTrainGeek

The thermostats do fail....

Each 'pod' appears to have it's own setting, I've been on Tangara's where one deck is hot, the other cold. The crew's only control of this is the AC circuit breaker.

35 degrees is probably as hot as the system can go, the sensor has failed 'cold' and the system has gone to full heat to warm the cabin up. They fail the other way too, turning the cabin into a refrigerator.

I also suspect this fault isn't detected by the train's fault logger so it doesn't get fixed till enough people complain and it finally ends up on a defect sheet.

The newer trains have smarter AC units and their faults are probably mostly detected and sent to the train's fault logger, so the maintenance staff find out sooner.
  CMTheTrainGeek Locomotive Fireman

Location: Waiting at Revesby...
Aaahhh ok..... thanks for the info Very Happy
  Goose Chief Train Controller


I also suspect this fault isn't detected by the train's fault logger so it doesn't get fixed till enough people complain and it finally ends up on a defect sheet.

matthewg
Only major faults with the ac show on the Tangara TMS screen.

Sometimes it is hot at one end because someone has put a unit on fast fans which just recycles the hot air.
  FullSeries Assistant Commissioner

Location: Sydney, NSW
The thermostats do fail....

Each 'pod' appears to have it's own setting, I've been on Tangara's where one deck is hot, the other cold. The crew's only control of this is the AC circuit breaker.

35 degrees is probably as hot as the system can go, the sensor has failed 'cold' and the system has gone to full heat to warm the cabin up. They fail the other way too, turning the cabin into a refrigerator.

I also suspect this fault isn't detected by the train's fault logger so it doesn't get fixed till enough people complain and it finally ends up on a defect sheet.

The newer trains have smarter AC units and their faults are probably mostly detected and sent to the train's fault logger, so the maintenance staff find out sooner.
matthewg
Only faults that shut down the control unit cause an faults message on the TMS. If the A/C unit is faulty, but the control unit is 'sending' the right signals to the A/C unit - then no fault is recorded. Guards should, when doing their preperation, note the inside temperatures and report units that are not working correctly.

I've noticed a fair few of the A set HVAC units seem to humidify the interior quite a bit - making it rather like a sauna in there. Even the A set units fail. Especially on hot days, where the units just pack it in when the temp gets over 35 degrees.
  sssshhhh! Beginner

I got on T2 Tuesday morning and it was like an oven. The T sets I get home though are bloody freezing, I don't know if the temp is set to low or the fans are running to high but FFS! Their wa ofcoarse an "experts exchange" in MX about this, one professor said they kept it cool so people wouldn't have to take their coats off Confused Guess they no longer need AC in summer for the same reason.
  T88 Junior Train Controller

Location: Banned
Bring back trains with windows that opened and closed.
  aamslfc Deputy Commissioner

Bring back trains with windows that opened and closed.
T88
Ah, the good old days... alas, we live in a world where air flow and proper ventilation come second to avoiding all the tedious paperwork and lawsuits that result from some moron sticking (and losing) a body part out the window.

That being said, most of the suburban fleet has decent aircon/heating (especially K-sets in summer, which can be fridges on wheels). It's only the Tangaras that actively try to murder you Shocked
  T88 Junior Train Controller

Location: Banned
Not to mention the spreading of viruses with no fresh air flow because passenger "A" has a cold.
I have been on aircraft that banned peanuts because one passenger was highly allergic.
It's really a catch 22 in regards to guide dogs on trains. Some people are allergic to them and have suffered severe reactions needing urgent medical attention. But guide dogs are permitted.
I believe the companion animal rule has been abolished.
  fixitguy Chief Train Controller

Location: In Carriage 4 on a Tangara
It's only the Tangaras that actively try to murder you Shocked
aamslf
thank god i travel exclusively on the Illawarra line

on another note. does a very cold Tangara ie. a freezer on wheels happen due to the same problems of the computer malfunctioning? I once caught one on a train from Milsons Point to Town Hall many years ago after a trip to Luna Park
  cammo2005 Assistant Commissioner

Location: Sydney, NSW, Australia.
Also in the summer, when the air conditioning fails (not as rare as you think), you've basically got an oven with many seats.
Jahommed
Indeed.

Long story short, the Tangara aircon units, particularly on non-refurbed sets, are smeg.
  sssshhhh! Beginner

Indeed.

Long story short, the Tangara aircon units, particularly on non-refurbed sets, are smeg.
cammo2005

Any chance of making the short story a little longer? Most of the freezing tangara's I catch are refurbed
  EMD-ACe Station Master

Location: Australia
The air-conditioning unit settings are checked and altered at maintenance centres and should be 18-19°C.

The temperature is also checked during train preparation.

The temperature may vary slightly being near a vent.
  FullSeries Assistant Commissioner

Location: Sydney, NSW
The air-conditioning unit settings are checked and altered at maintenance centres and should be 18-19°C.

The temperature is also checked during train preparation.

The temperature may vary slightly being near a vent.
EMD-ACe
The operation of the A/C is checked, not the temperature. Point out in the train prep guide where it tells the crew to check the temperature?
  EMD-ACe Station Master

Location: Australia
The operation of the A/C is checked, not the temperature. Point out in the train prep guide where it tells the crew to check the temperature?
FullSeries
You're taking the official material too literally.

You don't check the temperature with a thermometer (unless you're preparing a Waratah), but surely you can tell if the car is too hot or too cold.

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