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unclejohn

unclejohn

Joined on November 23, 2012

Last Post on July 31, 2014

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Union

@ July 31, 2014 7:23 PM in Steam TRV

Was easy. Its the steam pipe into the valve I could not turn. Mind you I could only get a 12" wrench on it. The next option is going to be removing the rad out of it's prison and then I can get a 24" on it. If the valve comes apart on the actuator side I have more room. Plus I not looking forward to hefting that beast.

AS far as I know

@ July 31, 2014 7:02 PM in Brazing without nitrogen?!

Which ain't much on mini splits. You never braze it's all flare fittings. Also I've used nitro only once on a large refrig. piping job, well most of it anyway. Had the biggest bottle I could handle and still it would not last the day on big pipe.

So Carrier is blaming the field techs

@ July 31, 2014 6:53 PM in major problems with new carrier system

Zep said he ran new line set and I guess he pulled a vacuum. I also installed a new Carrier in March and changed out the TEV in June and it was a Danfoss.  It  just may be me, but doesn't the capillary tube on the bulb seem a little skimpy. It's roughly the size of thread. the replacement TEV was a Sporland and I doubt I'll be back under warranty with that valve. My valve was on a fv4cnf002t00 and was a 3 ton valve.

Steam TRV

@ July 31, 2014 6:36 PM in Steam TRV

I have a customer with Danfoss TRV on two pipe steam rads. Her tenant says that last winter he could not sleep due to noise from the rads which he also said he could not shut off and that the rooms over heat. The only marking on the actuator is RA2000 that is connected to the valve body with a small set screw. The valve body has no markings other then the #1 where the steam line enters which would be at 6 oclock and the #2 where the valve connects to the rad at 9 oclock with the actuator at the 3 oclock position. My question is does anyone know if I can disassemble the valve and replace the guts. I tried to remove the valve body today and it won't budge. Although the genius that built the wooded cabinet around didn't help. 

Just Keep

@ June 26, 2014 8:35 AM in internal coil cleaner

Changing the dryers every week or so. Easier then changing the compressor.

If

@ June 26, 2014 8:32 AM in SubCooling

43 psi is correct at aprox. 8' of lift you will have ZERO pressure.

Did You

@ June 26, 2014 8:17 AM in TXV not set properly?

Remove all the refrig before you fixed the leak or did you pump it down and then pull a vacuum on the line set and coil?

I was

@ March 21, 2014 10:42 PM in Freon leak vs. moisture

On a job many years ago at a Baush and Loam lab that made eye drops. The lab had to have a very low humidity. There were actually two A/C units and evaps were one in front of the other. The discharge of one into the supply of the other. Well the RH was still to high in the room and the job was done as specked. Some real smart guy came out and explain that even though the supply duct to the lab was pressurised moisture was entering the duct. We sealed the supply and the job ran as designed. And I don't see the difference between air pressure and refrigerant pressure.

Dear Professer

@ March 21, 2014 1:49 PM in Freon leak vs. moisture

I would think that vapor or moisture pressure would be the controlling pressure here and not system gas pressure, Since the system piping is dry and the outdoor air would normally have a higher moisture content I would think that moisture would enter the system even on the high side..

d

@ March 21, 2014 1:48 PM in Freon leak vs. moisture

Second

@ March 21, 2014 1:29 PM in Original Equipment

Picture date code may be 42 week of 1960. Still they got there monies worth.

If your talkin

@ March 19, 2014 10:17 PM in compressor

Tin cans your wasting your time,in fact if your under 50 tons your wasting your time.

Watch The

@ March 18, 2014 8:16 PM in Looking for some info.

Pilot burner flame when the main burner lites. Does it pull away from the bi metal sensor, or does the pilot flame diminish in anyway? It may just need a good cleaning of the pilot. Do not use any thing to poke into the pilot orifice. Use air pressure to clean orifice

I reckon

@ March 18, 2014 7:39 PM in Viega design?

You could do 1000' if it was all sized up good.

You have

@ March 12, 2014 10:14 PM in Raypak Boiler Low Temperature Reading

Not given a fountain of info with your post. So we have to start somewhere. Is the thermostat set in heat and higher then room temp?

Is the

@ March 11, 2014 5:44 PM in Mono Flow Issues

Pump installed correctly? Is it pumping the right direction?

Make

@ March 11, 2014 5:38 PM in Gas ignitor only lasts one heating system

And model would be helpful.

The way

@ March 11, 2014 5:23 PM in Pumping away ? I must have something messed up! Help

The extroll tank is piped on it's side like that that has to be a air trap if you are coming off the bottom of the air seperater like you said.

Yes it

@ March 9, 2014 4:56 PM in residential split system shuts down due to overheating

Could be a dirty condenser coil. It may also be low on refrigerant. Most newer outdoor unit 10 years or so have single row condenser coil and all you need is hose pressure and no chems are needed. Some older units have a split cond. coil and you need to remove the top of the unit and clean between the coils.

You are

@ March 9, 2014 4:50 PM in converting from oil furnace air heat to heat pump with furnace as my back-up

Making your life way to difficult. Since you already have a lennox furnace stick with a lennox heat pump. If you do not currently have a variable speed blower stick with a single speed HP.You will most likly need to run a new low voltage wire to both the outdoor unit and the indoor tstat. Carrier makes a two wire indoor stat that will work with your old and new Lennox equipment.

Must be

@ March 5, 2014 11:30 PM in Condensate drain trap question:

To keep critters and the like out because you are right. They would have to hold there breath for 20 feet before the could gain entry to your house because the line as you described it is full of water.

CPSC has

@ March 5, 2014 11:21 PM in Burnham recall?

Three recent boiler recalls all for pressure switch fails to shut down boiler. Burnham was not one of them. US Boiler, New York, and Crown boiler.
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