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No, it's not. It is an NTC (negative temperature coefficient, meaning resistance drops as it heats up) inrush current limiting thermistor. A common one is the SL32 1R030, meaning 1 ohm cold...

I vacuum mine.

The Thomas oil-less compressor in my R70 has the crankcase teed in to the suction side but the suction gas doesn't directly flow through it, this means that you can't purge the air...

Car orifice tubes for CCOT systems are .052-.072" so comparable to piston orifices.

We need to get back to basics here.

The inverter operating strategies for induction motors are completely different than for permanent magnet rotor brushless motors.

PM brushless is a type of...

The POTS ring signal is 90v AC RMS at 20Hz, and yes, I've been zapped by it too when the phone rang while connecting a live line to a wall jack.

They are only inaccurate when pointed at a surface with the wrong emissivity such as bare metal, like oh, say, a galvanized steel blower housing. Bare shiny metal acts like a mirror for infrared and...

FHP uses a single probably balanced port TXV for both modes with the equalizer line and sensing bulb both attached to true suction IE between the reversing valve and compressor inlet.

If this...

The 5th gen and 5.5 gen Chrysler minivans are great but have 2 Achilles heels, the rear evaporator refrigerant lines and H block expansion valve are right behind the passenger rear tire completely...

That already exists, it's called a PHEV for plug-in hybrid electric vehicle, or if you're a suit in the marketing department of an automaker (cough, GM, cough cough) and desperate to avoid the term...

Wow, it's true, see:

https://goo.gl/maps/WdTbsK1P9aBUXQHWA

That's the 1300 South Clinton store.

That's HP-62 AKA R-404a in the main loop so -13° F not 23°.

False logic. Yes each pair in the bridge is only conducting for part of the time lowering the average, but the power factor of a bridge rectifier feeding a DC bus capacitor is only .5-.6, meaning...

It was an attempt to stop people from using their R12 gauges and other stuff on R134a systems. R12 cars used mostly 1/4 flare service ports just like stationary stuff, with some exceptions like some...

To me it looks like a standard Molex Mini-Fit Junior https://www.molex.com/pdm_docs/sd/039012040_sd.pdf, used by the millions in every desktop PC in recent history for the main 20 and now 24 pin...

On units with a gas valve that is located outside of a sealed burner box the valve's regulator vent has to be hooked to the burner box so that the regulator is controlling the pressure across the gas...

Here's my issue with the "a natural process is already doing far worse than we ever can, so why bother" argument.

Imagine one day a crack in the ground opens up in your neighborhood and starts...

Grrrrr... here we go again.

I just looked it up, it is the new hotness replacement for the old and busted R-134a... BUT it is 44% R-134a by weight and 56% R-1234yf.

(yes that's a Men in Black...

AKA the old Eaton Aeroquip or Parker 5700 series.

http://www.flowjoint.co.jp/clscatalog.pdf

Page 19

https://i.imgur.com/CDqD1KV_d.webp?maxwidth=728&fidelity=grand

"When i upgraded to a 3 ton 2 stage from a single stage 3 ton HP, i have noticed that except on mild days, it would take forever for...

High temp evap: R290 is 70.6 PSIG, R22 is 76.1, 12 is ... 42 all @ 45° F

Condenser: 242.9, 281.7, and 171 @ 125° (old 95° ambient +30° rule)

I have heard stories of people putting 22 or 290 in...

Nope. Propane R290 is almost identical to R22 not 12 (22 and 290 both have an atmospheric boiling point of roughly -40°, 12 is -22° F). If you mix propane with isobutane in the correct ratio you get...

This has me confused because there is just one teensy tiny problem with that paragraph, motor run capacitors are not electrolytic so i'm not sure why you brought them up.

I've got a pair of the RectorSeal branded ones on the test mule Carrier 38TK hooked to a 28RC cased evaporator. One is straight through, the other a 90, so far so good. For prep I sanded and then...

Here's one PSC motor that you guys probably wouldn't normally think of, the ceiling fan. Some use a tapped run winding for the different slip speeds just like any other PSC blower motor you're used...

It should be noted that stranded wire does not reduce the skin effect unless it is Litz wire where the individual strands are insulated from each other, like by being varnished like magnet wire. If...

You have to understand how a TXV works in order to know why you observed what you did.

A TXV is nothing more than a pressure regulator whose set pressure is controlled by the sensing bulb...

Here's the issue with a piston, if you ever stop to take a look at your handy charging chart and actually think about what the numbers mean, you will notice how much they suck.
...

The 80% limit is for long term loads like space heaters. Short term loads that only run for a few minutes at a time can use 100%, which is why 1800/1875 watt hair dryers exist with a 15 amp plug. My...

Probably the same way I know that the highest speed that the speed (cruise) control can be set is 90 MPH on a 1992 Dodge Dynasty 3.3, by breaking the law a little.

Sent from my LG-US996 using...

I'm assuming that he previously didn't have the magic little asterisk after Professional Member that enables you to reply in AOP.

I've got a basic 5k BTU GE branded POS window shaker here that I picked up by a dumpster. It had the usual case of bad ball bearings in the fan motor because they use shielded instead of sealed...

The other part that has always left me scratching my head is how does anything besides gas make it beyond the gas meter? Look at a teardown of your basic bellows type gas meter, the entire thing...

My opinion here. Always go with a properly performed Manual J load calculation, always. If its results are split between 2 size classes, round down not up, IE if the manual J says 70k for heat round...

As I have mentioned on here before, the speed taps on a "multi-speed" PSC motor aren't actual speeds at all, they are taps on what amounts to an autotransformer that is part of the motor's run...

I see something about 1998 on the left so it may not be physically that old but it is an old design.https://images.platforum.cloud/uploads/20200108/c4613b1155959d76dde00bff8881bd58.jpg

Sent from...

It isn't just induced draft, I was given an old gas stove because there are certain things you just can't do with a glass top electric, so old in fact that it is the style with 3 standing pilots and...

Especially when said possible downsides amount to a "... but sometimes" argument.

https://youtu.be/GiYO1TObNz8

Please watch this all the way through.

Then some things are just too reliable,...

Here's what I meant by small VS large diameter in various lengths. The gasket is roughly the same size on both. The 33336 Diesel secondary fuel filter is roughly the same size as the 51773 which is...

I highly suggest that you use the wixfilters.com site. They give full specifications for any filter part number. I also highly suggest that you learn the specs of your filters and then go with the...

The icing on the cake here is that the heater that was linked to isn't even actually an infrared radiant one at all, it is just a normal fan forced unit, just like those scam cube heaters.

No...

PHM I can't help you with your problem, but I can add this:

I wish that GM weren't so darn schizophrenic about their designs.

What I mean by this is that the way that they do things some times...

Yes, you can, but no, you shouldn't. You should fix it right.

Oh, and I assume you meant UV light not IR.

Rear A/C block-off kits are readily available, my own van, a 5th gen Grand Caravan, has...

If the 16" reading is accurate I would have the gas company fix the over-pressure issue and then replace every appliance gas valve that has been exposed to it as a CYA measure.

There is roughly...

OK obviously I had a typo, that last torque number was supposed to be 1.0 not .10 lb-ft.

My way might also explain the too much airflow situation if it does always round up to the next higher...

I use the Lau parts catalog a lot for technical details like these because they quote the performance curves for their various products. We already know that for a forward curved centrifugal blower...

You could always try a Cornell Dubilier Quencharc, which is a small capacitor and resistor in series in a single package. My Amana commercial microwave oven from the factory uses them across the...

The industry already uses the Coanda effect whether intentional or not, it's what causes the dirt stains around diffusers from the airflow clinging to the surface. The Kansai Airport in Japan uses...

It depends on how much effort you want to put into it. If you really want to go all-out use both low loss fittings on the hoses:
...

As I understand it 404a is used in applications that use hot gas bypass because it has a higher heat of compression, for instance hot gas harvest ice machines.

Think about this for a second. The TXV has bulb pressure pushing down on the diaphragm trying to open the valve and equalizer (sensed suction) pressure + spring pressure pushing up trying to close...