So what is the "secret" in eliminating the 2nd timer? How do you program the timer? Is there a tutorial in using the timer/dpdt relay? Thank you!
I also have to mention that using the CN101 timers like the ones the OP is using it is better to use TWO timers and wire it so the power is turned off while the door is not in operation.
Power timer turns on, the door Closes.
Power timer turns off after 1 min.
Power timer AND the Polarity Reverse timer turn on, the door Opens.
Power timer turns off first after 2 min, then the Polarity Reverse timer turns off second after 3 min.
Power timer turns on, the door Closes.
Power timer turns off after 1 min.
This is not my favorite but if you have the timers already then it saves power, extending battery life and usage.