Type: Posts; User: thump_rrr
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I have a unit I am trying to identify so that a replacement can be found.
The unit has A/C and gas heat and the supply is above the return.
The only thing I can find on the unit is that it's an...
I am looking for a fan curve or any available literature on a Buffalo Forge blower
Type V Model 152
Any help would be appreciated.
In the 27 years I've been in the business I've gone through many meters.
I started out with a Hioki analog meter that went into the garbage when I started working at my first job.
Another tech with...
I have the YJ hydraulic set.
Before purchasing I read the reviews and the biggest complaint was wear between the anvil and the dies.
I used a little never seize on the anvil and have not had any...
I wear 5.1.1 Tactical Tac Lite Pro Pants.
Plenty of pockets including a cell phone pocket and a pocket for pens.
Very breathable, they dry in 20 minutes when caught in the rain.
The knees are...
I have installed quite a few Gree ductless mini splits and I can guarantee you that they are not stealing any American technology.
Their units are very well made and light years ahead of any...
Where in the coil is it?
If it is next to the tube sheet I use a 1/8" aircraft drill bit to drill holes in the tubesheet around the tube in question.
I then cutout the tube sheet before brazing.
I have the Klein CL2100 which has true RMS and the built in thermocouple.
I purchased it after my truck was broken into and $6,000 worth of tools were stolen including 3 Fluke meters.
I needed to...
I use a Surefire 6PX Pro.
It uses 2 CR134 batteries.
It has 2 intensities 15 lumen and 200 lumen.
Not the cheapest flashlight or batteries but I can usually buy a box of 12 genuine surefire for...
This isn't the open forum section if I'm not mistaken.
In the last 25 years I've only had 1 Carlyle 06D/E series compressor run low oil pressure on me.
I deal with a local rebuild shop who sells...
I prefer a rib steak but those are some nicely marbled pieces of tasty goodness .
I'm in Montreal and I've opened them up in the winter to find frost covering the interior of the disconnect.
You then get the sun coming out and melting the frost directly into the terminals.
What is the return air wetbulb temp?
If you also had return air wetbulb you could check if the airflow is too high causing the high supply temp.
The question is did you find the cause?
It just doesn't happen because it felt like it.
To elaborate a litre more in our Canadian climate what usuly happens is that the electrician doesn't use...
American Standard, Payne.
Up here you must buy into the advertising for Bryant or Trane.
We are primarily a commercial, industrial contractor so residential is a tiny part of our business.
What does it cost to haul a 19,000 lb cooling tower to your shop and have it placed somewhere out of the way?
It sure isn't free neither is the equipment used to lift it.
You then need to bring...
If you're not familiar with it take note that you cannot run the H10-PM on the power adapter unless it is the larger one which I believe is 1700va.
I have an H10PM with both transformers.
The small one can only charge the unit while the larger one can either run or charge the unit while plugged in.
I only plug it in to charge when the low...
What were the high side and low side pressures?
What was the return air wet bulb temperature
What was the superheat at the compressor?
Some of the things that we need to know to diagnose a system.
My thoughts are that you did well going for a YJ.
I bought a Supco and somehow lost it a month later.
That was the best thing that could have ever happened to me.
Which YJ vacuum gauge did you...
As valdelocc has already mentioned the low voltage indicates that the 24v has dropped below 19.2v.
Typically you get a low voltage with a high current draw so you need to find out what is drawing...
I've changed probably 6 of those universal joints in the last 8 years.
If they are seized I just take a cutting disc on a grinder and cut a slot in the u joint almost all the way to the shaft.
I used the 1/4" npt fitting on the bottle along with the 3/4" npt pipe plug that was there for the safety shutoff.
I didn't use the high or low side fittings.
If I had another 3/4"npt x 1/2" flare...
Nobody will touch it without the copper in it.
I had a hard time finding a scrap guy to come take 6 tons of cast iron boiler sections.
A technician including the cost of his truck and benefits...
This is what the other tech found.
Sorry for the crappy cellphone pics.
The evaporator was a block of ice when it was found.
Over a litre to date.
The circuit was open for about 3 weeks before we got the call.
I will post pictures later of what the blower section looked like when we got there.
No frosty parts on the unit.
The unit is a packaged rooftop air conditioner with 2 20 ton circuits.
It has air cooled condensers and DX cooling.
The blower section came apart braking the...
In Canada or at least in Quebec where I am if I modify a gas line for example add an additional suspended furnace.
I am responsible for the entire gas line being up to current code.
This means that...
Day 2 I arrived to find the whole charging cylinder frozen over up to and including the Vacuum tree.
The vacuum tree was plugged solid with ice and there was about 1/2 a litre of frozen water in the...
I'll be honest with you.
We recover the refrigerant while it is still on the roof then call the scrap guy to be there when the crane is there.
They drop it on his flatbed and away he goes.
If we spot cracked heat exchangers we cut and cap the gas and red tag the system BEFORE we notify the customer.
If they want to do something illegal like turn the unit back on then they better...
It's been running since 10:00AM.
The oil was still perfect at 4:00PM when I replaced the oil and did a vacuum break.
I added 2 more bags of dry ice to make it to tomorrow.
I broke down and went the recovery jug and dry ice route.
I couldn't find a 1/2" adapter so I went the 3/8 route.
The system held 300 psi for over 24hrs without moving.
After replacing the oil I let the vacuum pump pull down to about 50 microns before continuing the vacuum which was broken with dry nitrogen.
The whole point of the exercise is to remove the moisture before putting in fresh refrigerant.
R-22 doesn't cost what it used to anymore.
I'm already at nine evacs with nitrogen purges
I have a Carrier 50DD044100NC which had a major mechanical failure.
The center bearing failed which caused the blower to explode taking out the distributor cap tubes
The tubing was repaired as...
If love to see a pic of how you stripped it and separated it.
A good technician takes pride in his work.
I work on a lot of very old equipment.
I pride myself in knowing each unit I take care of.
I get mad when others screw around in my stuff.
I ran into this a week ago.
The hot gas unloaders need to have the lower piston installed on the unloader.
The suction cutoff unloaders do not need the piston.
When a hot gas head is able to...
Showing up on time is important but showing up every day is even more important.
Having someone show up on time 9/10 days and calling in sick one day out of 2 weeks is absolutely useless to me if I...
Was the gas cut and capped and the units red tagged?
Was this noted on the service reports and were they signed?
Were any pictures taken of the cracks?
If everything was done by the book the...
Has anyone needed to replace semi hermetic service valves due to leaks?
I have a Carrier 52 ton which has an empty circuit due to a leak on the distributor.
I don't want to trade one problem for...
Megger is actually a brand name.
It's an insulation resistance tester.
You typically test at 2x working voltage to ground.
An open or OL reading is good while a low mega ohm reading...
Checkout and drain all the water and crud in the traps on the drops first.
If that doesnt help try opening the steam traps on the rads and once again clean out any sediment which probably clogged...
Whenever I can't find some intermittent problem which causes fuses to pop I pull out the Megger.
You'll be surprised at what I've found to be defective. contactors, airflow switches, transformers,...
There was a bad connector on the high limit.
Thanks for the help
The blower is running continuously.
I never saw the unit fire.
Ill be going there a bit later.
Thanks ill update once I've gone.