Customer Asked Misc EasyStart Questions ma-30

EasyStart™ Installation FAQs  


I have a refrigeration system that used a 1hp Marathon 110v motor that uses a belt to drive a Climatrol open face compressor.  
The motor is CSCR.  
The run capacitor has two terminals and is fed with two wires, brown and purple.  
Neither terminal is labeled and I can't determine which terminal it to be connected to the EasyStart's orange wire and which is to be which wire is to be spliced to the brown wire. Do you have a wiring diagram for my installation.

EasyStart has been installed with success into Baldor and Leeson motors of the type you have described (not yet Marathon), but I must advise it is a difficult prospect.

The reason is, even though these motors may be CSCR, as you have already discovered, they don't provide an internal wiring diagram, nor are the wire connections easy to figure out.
Also, there is likely a centrifugal switch that is used to switch in/out the start capacitor. This device typically must also be located and bypassed in order to wire in the EasyStart (depending on the overall design of the motor windings).   

Some motors of the type you describe use dual run windings to handle different voltages, and some also split the start winding with a center tap, applying the start capacitor at one point and the run capacitor at another point. It can get very complicated as compared to the relatively simple task of installing an EasyStart into a HVAC compressor application.

The other challenge is most refrigeration systems are designed to hold their discharge and suction pressures after the compressor shuts down, not allowing them to equalize. This pressure differential during the next compressor startup therefore requires much higher torque than it would if otherwise, thus making the work of any soft starter much more difficult (almost forcing a "hard start" to occur).

Most air conditioning compressors allow the system pressures to equalize during their off time, so the next startup will be less loaded and application of a soft start such as the EasyStart will be much more successful.

In your case, since your refrigeration compressor is belt driven and not direct-drive, that will likely help the starting torque requirement a little bit, but we cannot predict what will happen here and if the EasyStart will work, with any degree of certainty.

In spite of the above points, installing an EasyStart into your refrigeration motor is feasible.
I told you the above not to discourage you, but to make sure you are aware of the challenges this will involve. It could take a fair amount of research and work on your part.

First, I would recommend that you contact the manufacturer of your refrigeration system or Marathon (Regal-Beloit) themselves to see if you can get a copy of their motor's internal wiring diagram - using the model number off of the motor's dataplate label.

We have had good success with other motor manufacturers such as Baldor and Leeson in terms of their willingness to provide internal motor wiring diagrams, but we have little to no experience with Marathon. You may be able to find the diagram online as well.

I just perused the Regal-Beloit website and their Marathon motor subsection, and I was able to find some wiring diagrams for some of the motors listed.
You may get lucky if you search for your motor's model number or can find it in the listing.

Second, after you find the diagram, please send it to me and I will draw in where the EasyStart will wire and send it back to you. After that, you'll be able to check if all the wire connections that are necessary are accessible, and then make your decision on whether or not to try installing an EasyStart.


Looks like my wiring is consistent with the 6-wire configuration.
I was able to run it with the eu2000i today. Worked great!
3 amps before compressor coming on. And ~14.2amps with it on.
Will be happy to sell my honda with parallel kit.
Any advantage to the 7-wire configuration?

Glad to hear everything is working well for you! Thank you.

In your case and for any RV rooftop application with a dual run capacitor, you're better off with the 6-wire configuration.
The reason is the 7-wire configuration adds the current through the run capacitor (via the RC terminal) to what the EasyStart 366 monitors, in addition to the current it already controls and monitors to the run winding and to the start capacitor.
The current through the run capacitor is relatively small compared to the current through the run winding & start winding during startup and during steady-state running operation (5-10%) and doesn't change very much.
So without it, the EasyStart still makes the right decisions during the 5-learning starts.
Also, if the RC terminal is used to tie in the run capacitor, since your model A/C uses a dual run cap that supports both the compressor and the fan, then EasyStart then starts passing and measuring a very small portion of the fan current as well (what goes through its start winding through its run cap).
This current is very small and has no effect on normal start-ups and running operation; however, this fan current could affect the 5-start learning process if somehow the fan speeds were set differently during each of the 5 different starting trials, thus throwing off the precise current measurements being made by the EasyStart during those trials, possibly resulting in the EasyStart choosing a less than optimal starting profile.


I have an Airstream with a rooftop AC unit, 15K BTU’s.
I have installed a hard start capacitor.
I have heard that you have a better option for running the AC off of one 2000 watt generator.
What easy start options do I have? Please advise

Yes, our EasyStart 364 (ASY-364-X20-IP) is the appropriate model for your 15kBTU A/C at this link.

It will far surpass what your hard start can provide for you.

If you have any further technical questions about EasyStart, please visit our new EasyStart™ Knowledge Bank, recently added to our website at this link.

There you will find helpful information, installation guides, and a library of wiring diagrams for various rooftop makes and models.


I'm looking to purchase soft start kits for my two AC units.
At first glance, it didn't look like you have any that can accommodate the specs on the pictures attached.
Please advise. Thank you!


The EasyStart 364 (ASY-364-X36-IP) will be the appropriate model for your Payne 3-ton unit shown in your second photo at this link.

The EasyStart 368 (ASY-368-X72) will be the appropriate model for your York 5-ton unit shown in your first photo at this link

Please let me know if you have any further questions.
Please also visit our new EasyStart™ Knowledge Bank, recently added to our website.
There you will find helpful information, installation guides, and a library of wiring diagrams for various A/C makes and models.


I have an Airstream 26U that has the dual 13.5k and 15k A/C units on it.
I am in the process of buying a Yamaha or Honda 3000watt inverter/generator.
What would be the best way to install a soft-start with this application.
Could I actually run both A/C's at the same time with a soft start installed on each unit, or would I want to select one over the other and simply install a soft-start on one of them, if so - which one?

Your situation is not uncommon.
Installing an EasyStart 364 into both your 13.5k and 15k A/C units will allow you to start and run both A/Cs on a 30A utility hook-up, or start and run either A/C on a single 2000W generator.
Unfortunately, a 3000W generator is not quite enough to run both A/Cs together.
You need an absolute minimum of 3500W (29A @120VAC) to do that.
Many people with dual, paralleled 2000W generators (4000W total) choose to install EasyStarts into both A/Cs so they can run both with both generators, or they pick a single A/C into which to install EasyStart so they can operate on a single generator.

For the latter case, the A/C you choose is up to you since there are trade-offs.
Choosing the 15k for a single EasyStart installation will provide you a greater amount of cooling for single A/C operation, but it will leave you with less leftover generator capacity to power your trailer's auxiliary loads.
Alternately, choosing the 13.5k for a single EasyStart installation will provide you less cooling, but greater auxiliary load capacity.
For 2000W generators, we recommend the latter case.
In your situation, if you do choose to purchase a 3000W generator, you can certainly afford to install the single EasyStart into the 15k.

If you have any further technical questions about EasyStart, please visit our new EasyStart™ Knowledge Bank, recently added to our website at this link.

There you will find helpful information, installation guides, and a library of wiring diagrams for various rooftop makes and models.


Some questions I have after looking at the diagrams.
From the compressor, the blue wire gets cut, stripped and both ends get connected to the black wire from the easy start?
The white wire from the compressor gets cut stripped and one end gets connected to the brown wire?
What happens to the other end of the white wire?
Or does it live with it too?
Sure don't want to do a smoke test.
How would you recommend attaching the unit to the mounting locations?
I've thought about using aluminum ducting tape.

What you described for the EasyStart's BLACK and BROWN wires is correct.
The WHITE wire from the EasyStart connects to the same terminal cluster on the run cap from which you removed the compressor's white run winding wire (that was then spliced to the EasyStart's BROWN wire).
Lastly, the ORANGE wire from the EasyStart connects to the opposite terminal cluster on the run cap where the compressor's red start winding wire is connected.

The best way to mount the EasyStart in the recommended locations is by using 3M double-stick foam tape.
That way you don't risk damaging anything by using screws or other fasteners into the evaporator air box.
The 3M foam tape stands up to weather and temperature, and once it cures, it is very strong.


Are the Easystart soft starters only for use if a RV/Motorhome is going to be using a generator?
In other words can an easystart be used in all electric situations i.e.: 50amp, 30amp, Generator?
Even when we are on 50 amps it seems that the heat pumps start up very rough/hard and just wondering if it would do any good?
Last question; what all has to be bought?
The starter, control display and control board?

Yes, the EasyStart 364 can be used in all situations, utility power and generator.
It obviously provides its benefit of dramatically reduced startup amperage with all power sources.
Besides the most sought-after benefit of being able to start and run a single A/C on a 2000W generator like the Honda EU2000i, many other customers also purchase EasyStarts so they can run 2 A/Cs on a 30A hook-up (or two 2000W generators), when normally a 50A hook-up would be required.
Also, EasyStart provides sophisticated compressor fault monitoring during steady-state operation that protects your compressor better than any OEM factory configuration.
We believe EasyStart can and does extend the life of any compressor.

Besides the EasyStart 364 itself available at this link, you only need some miscellaneous crimp terminals to accomplish the wiring, and some fasteners (sheet metal screws) or 3M double-stick foam tape to mount the EasyStart.
It is IP65, so it is fully weatherproof.

We offer a low-cost installation kit at this link for those who don't have easy access to the necessary crimp terminals and foam tape.


Needing to purchase a unit ASAP.
Trying to determine the appropriate unit. Have a 4 ton.
Max ampacity unknown.
Would the smaller or larger unit be ideal?

You're going to need the larger EasyStart 368 for a 4-ton system at this link.

I just noticed that the EasyStart 368 typically requires "5 learning starts" on utility power.
That isn't an option in this case.
Is there a jumper to bypass or a way to force it on generator?

Here are the trade-offs and realities you'll have to contend with.

The very first learning start is the most critical.
It is this start that may be the one to make or break your entire attempt at learning on a generator versus on utility power.
This is because the start current reduction during this first learning start is only about 40% (and not the 65-70% you'll get when the learning is done).
Therefore, if your A/C will not start at all on generator without the EasyStart, there is a chance - probably lower than 50% - that it will be not be able to do the first start with EasyStart.
Chances are, it should work, but we cannot guarantee it given we don't know anything about your generator.
If it doesn't work, the compressor will stall on this very first learning start and the EasyStart will immediately shut it down.
The EasyStart will then keep re-attempting this same first learning start on subsequent starting attempts, by design, because it never worked and it won't allow itself to progress through the 5-start sequence unless the previous start was successful and the associated data was collected.

Second, there is a jumper on the EasyStart that prevents the learning process and keeps the EasyStart using a "default" starting ramp profile and parameters, which really corresponds to the first learning start.
We NEVER recommend that customers use this unless they are trying to do some troubleshooting.
In your case, I would not recommend this either.

So, it's up to you if you want to take the chance on it.



Similar Articles