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Forum: Diesel Discussion

07-04-2012, 10:14 PM

Replies: 120

AC refrigerant to use?

Views: 9,274

Posted By Brian Carlton

You are correct. You must procure the 30 lb....

You are correct. You must procure the 30 lb. cylinder if you want to get it at $15 per pound.

Otherwise it's about $20 per can (you need four) or about $16 per can if you purchase 12.

Forum: Diesel Discussion

06-23-2012, 08:17 AM

Replies: 120

AC refrigerant to use?

Views: 9,274

Posted By Brian Carlton

I believe a better trick is the addition of an...

I believe a better trick is the addition of an inline resistor. Dave did some work on this with the W124. I need to take a look at that.

Forum: Diesel Discussion

06-23-2012, 01:15 AM

Replies: 120

AC refrigerant to use?

Views: 9,274

Posted By Brian Carlton

Evap temp switch. It is the only device that...

Evap temp switch.

It is the only device that cycles the compressor.

Forum: Diesel Discussion

06-23-2012, 01:00 AM

Replies: 120

AC refrigerant to use?

Views: 9,274

Posted By Brian Carlton

I was reasonably impressed with the SD today. ...

I was reasonably impressed with the SD today. Ambient was 91F. and the SD with the R4 could manage 48 degree vent temperatures and it finally achieved the setpoint (22C) after about 20 minutes. The...

Forum: Diesel Discussion

03-17-2012, 12:38 AM

Replies: 120

AC refrigerant to use?

Views: 9,274

Posted By Brian Carlton

Is this excellence measured on the SD with an R4...

Is this excellence measured on the SD with an R4 compressor or with the SEL, with, presumably, the Nippondenso?

There is a world of difference between the two systems and you cannot claim...

Forum: Diesel Discussion

03-16-2012, 10:07 PM

Replies: 120

AC refrigerant to use?

Views: 9,274

Posted By Brian Carlton

You wouldn't happen to have any vent temperatures...

You wouldn't happen to have any vent temperatures at 95F............would you?

Such data might confirm such a theory.............or not.

Forum: Diesel Discussion

03-15-2012, 11:24 AM

Replies: 120

AC refrigerant to use?

Views: 9,274

Posted By Brian Carlton

Yep, I recall the same. But, I'm not...

Yep, I recall the same.

But, I'm not interested in "works fine".

Plenty of idiots can think anything "works fine".............until it doesn't. Then they spend a bunch of money.

What's the...

Forum: Diesel Discussion

03-15-2012, 11:15 AM

Replies: 120

AC refrigerant to use?

Views: 9,274

Posted By Brian Carlton

Sad, but accurate. By some miracle, the SD...

Sad, but accurate.

By some miracle, the SD has lasted eight years. I attribute this to a system that was not fully charged for seven of those years and offered up miserable cooling. The recharge...

Forum: Diesel Discussion

03-15-2012, 11:07 AM

Replies: 120

AC refrigerant to use?

Views: 9,274

Posted By Brian Carlton

It is agreed that the propane does well and is...

It is agreed that the propane does well and is cheap............but..........above 90-95F. it gets into pressure issues.

I'd be curious if the ES-12a can handle 100F. ambients with acceptable...

Forum: Diesel Discussion

03-14-2012, 09:51 PM

Replies: 120

AC refrigerant to use?

Views: 9,274

Posted By Brian Carlton

Propane to test it.

Propane to test it.

Forum: Diesel Discussion

03-13-2012, 07:00 PM

Replies: 120

AC refrigerant to use?

Views: 9,274

Posted By Brian Carlton

Yep, the system doesn't do well unless the...

Yep, the system doesn't do well unless the ambients are not more than 95F or so. Supposedly, the addition of isobutane to the mix helps with that situation.

I'd like to try it up here, but I...

Forum: Diesel Discussion

03-13-2012, 06:45 PM

Replies: 120

AC refrigerant to use?

Views: 9,274

Posted By Brian Carlton

Ever have the propane system in ambients of 100F...

Ever have the propane system in ambients of 100F or more? What's the result?

Forum: Diesel Discussion

03-13-2012, 06:44 PM

Replies: 120

AC refrigerant to use?

Views: 9,274

Posted By Brian Carlton

The evap has a temperature switch that cycles the...

The evap has a temperature switch that cycles the compressor to prevent freeze up. It's the only thing that controls the compressor. Many times this switch is set a bit too high and the discharge...

Forum: Diesel Discussion

03-13-2012, 05:29 PM

Replies: 120

AC refrigerant to use?

Views: 9,274

Posted By Brian Carlton

In FL, I would suggest that you make the effort...

In FL, I would suggest that you make the effort to obtain and use R-12.

You won't be pleased with any alternative other than propane/isobutane. That fluid has its own issues, however, at very...

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