Does coleman mach 8 have a start relay?

[Jjrho]

Hi, trying to install the softstartrv on a 2017 era 70x n ... downloaded the instructions for my specific model BUT...it has 2 variations on the instal.... 1. With start relay n 2. Without start relay.... any one know which?

Here's some pics of my unit.... i ve seen videos for mach 8 install but every year the ac unit is made differently with diff variations of capacitor locations n terminal connections so for a non hvac guy, im not 100% sure how to connect those 5 wires although i have general concept ....

Please advise,

( called help line n no answers so far....)

James R
2017 era 70x , 2nd half series

[Ray,IN]

The run capacitor is the round silver device to the left of the terminal block in your last picture. That looks like the start device below the terminal block.

[Jjrho]

I guess I don't have a start relay but there is a device called pctr or ptcr that I had do remove....

With regards to hard start capacitor, does it work to allow you to start AC with less power than that drawn during starting/surge ? Hard yart cap basically holds reserve energy to aid in starting but will it hold enough to supply the initial surge current ?

[Ray,IN]

That appears to be the PTCR below the electrical box. Your wiring schematic picture shows the PTCR near the bottom of the picture within the terminal block drawing.
I chose hard-start caps instead of soft-start units because hard-start was OEM on my A/C unit.
Then there is cost, my hard-start caps cost about $12 ea.; soft-start units are about $350 ea.
reference: https://www.ecmag.com/magazine/artic...kits-necessary

[Magnum108]

Check out this video https://youtu.be/6mcY8wD0rlQ. It is installing a softstart on a Mach 8+