0l hvac potential realy curent rely line1 linted s.c coil einzing starting point conted enizing out startung point comprssl1 .lined give ssme line coil m..çr ..ruing point c line 2 comin ponited

If you think you're sitting in class learning boring stuff, you're not really learning anything.

SGT Gavens was satisfied only after we could strip and reassemble a Garand in the dark! ;-)

I laughed out loud when he said this. Great job Halligan142!

No expert here but 3n1 s have long cables and can be left in a far place if adjacent to compressor you have lack of it. Then at under $10, you have nothing to loss to try one and see if it will run your unit, first and then will continue to work fine or not, in coming days. You can't make it worse and hope is that small price tag of 3n1, bring the cold back.

Howard Ostfeld, You seem like the person to answer a question since you picked up on that fact. If I may ask. Concerning these “Hard Start Kits”. I know that the start capacitor and start windings are there to shift the phase in order to get rotation going. Are the kits simply there to increase the capacitance? If so, why doesn’t the manufacture simply use a higher rating capacitor? Can these start kits create too much starting torque or cause other problems elsewhere? Thank you in advance.

@@Do_the_Dishes Hello, I just saw your question. I want to give you an accurate and quantitative answer. It can get quite mathematical involving capacitive reactance and inductive reactance involving phase angles. These involve vectors. Let me know how far into it you want to go. The general answer to your question is that the combined inductance and capacitance has to be matched to the operating characteristics of the motor in the compressor to produce enough phase shift between the voltage and current for the motor to start turning. A simplistic analogy is, if you are not in the right gear for the engine speed for a manual transmission the car will not run smoothly. Thanks. Hope you reply.

There are two scenarios described in the video. The FIRST is a fractional hp 115vac motor. In most cases these are called single phase induction motors, either cap start or cap run. The usual wiring has their cap in series with a switch or current relay. The SECOND scenario are larger several hp single phase compressors, typically 240vac 1-5 ton systems. These are PSC (Permanent Split Capacitor) Motors. On those, a capacitor is "Permanently" in series with the start winding. It is called a Run Cap and allows continuous start winding current. The amount of current is limited by the uf size of the Run cap. For a larger compressor, the Run Cap may be sized at 30-80 uf. A "hard start" kit for a typical single phase PSC motor adds another bigger cap in parallel to the Run cap "Temporarily" for more start winding current. The hard start cap, often around ~300uf, is switched out by a potential relay as soon as the motor comes up in speed. However in a PSC motor, the Permanent Split (Run) Capacitor stays in the circuit. Finally most PSC compressors in the last 25 years are scrolls which usually don't need extra hard start kits and use only their Run caps to allow current to their start windings.

I'm not so sure: If the viewer needs that explained, they're probably missing some needed background in electrical theory, without which 'phase shift' and 'back EMF' might only confuse them further.

Actually the automotive condenser is a capacitor. In the small fridge current relay the capacitor is in parallel to the contacts in the same way as the condenser (capacitor) is in parallel with the contact points of the ignition,

I don't and probably never will trust those things no matter what anyone says. Hell I still don't trust PEX and propress

Txs for this info. "soft-starters" are great to prevent destructive in-rush and preserve bearings on all electric motors greater than 1/2 Hp.

the cap is to stop arcing when the starter switch opens

Dadla Ponizil , I was reading the comments to see if anyone else picked up on that. The start capacitor should be in series with the switch; only the run capacitor would parallel it so his print is wrong. In addition, the cap is not to stop arcing in this case. It is to shift the phase in order to start the rotation going.

There are two scenarios described in the video. The FIRST is a fractional hp 115vac motor. In most cases these are called single phase induction motors, either cap start or cap run. The usual wiring has their cap in series with a switch or current relay. The SECOND scenario are larger several hp single phase compressors, typically 240vac 1-5 ton systems. These are PSC (Permanent Split Capacitor) Motors. On those, a capacitor is "Permanently" in series with the start winding. It is called a Run Cap and allows continuous start winding current. The amount of current is limited by the uf size of the Run cap. For a larger compressor, the Run Cap may be sized at 30-80 uf. A "hard start" kit for a typical single phase PSC motor adds another bigger cap in parallel to the Run cap "Temporarily" for more start winding current. The hard start cap, often around ~300uf, is switched out by a potential relay as soon as the motor comes up in speed. However in a PSC motor, the Permanent Split (Run) Capacitor stays in the circuit. Finally most PSC compressors in the last 25 years are scrolls which usually don't need extra hard start kits and use only their Run caps to allow current to their start windings.