A/C Relay and Hard Start Capacitor
I have been having slow (hard) start up of my 15000 Coleman air condition unit. After reading many different forums here and elsewhere, there were a lot of favorable recommendations of the Supco Hard...
Forum Discussion
The compressor is the motor you are sizing it for, and a 15k btu compressor is a bit over 1 hp (mol), plus the capacitor is the same size as stock (88-108 mfd).
I actually disagree with Supco as to recommending the E series- they don't, I do. The reason they do not recommend it is it will recycle immediately- if you turn the compressor off then right back on, it will kick in, whereas the PTCR type (like stock) will not. My answer is to not turn the a/c off then right back on, plus most thermostats will prevent this.
My reason for recommending the E series is that running on a generator, the generator will sag briefly. The E series has a "potential" type relay which will keep the capacitor in the circuit until the compressor is running at 75% of speed. The original PTCR type (which the non-E series are) are time based, so they drop out even if the compressor is not running at speed.
The SPP6 is functionally identical to the stock Coleman start kit anyway.
I actually disagree with Supco as to recommending the E series- they don't, I do. The reason they do not recommend it is it will recycle immediately- if you turn the compressor off then right back on, it will kick in, whereas the PTCR type (like stock) will not. My answer is to not turn the a/c off then right back on, plus most thermostats will prevent this.
My reason for recommending the E series is that running on a generator, the generator will sag briefly. The E series has a "potential" type relay which will keep the capacitor in the circuit until the compressor is running at 75% of speed. The original PTCR type (which the non-E series are) are time based, so they drop out even if the compressor is not running at speed.
The SPP6 is functionally identical to the stock Coleman start kit anyway.
