I'm certainly not an expert or experienced with PIDs and when I checked out the links Dick posted they convinced me I'm a dummy!
However, I've installed my PID and I'm using it to control a electrical heating element in my GOSM, I cant' say if you can or can't turn your blower on or off with a PID, but here is how I understand my directions, hoping that yours will be similar and it will help you to understand.
First thing is the PID needs a starting point temp, then I needed to tell it how long it has to reach the target temp, then I needed to set the target temp and then I have to tell it how long to maintain the target temp.
In reading your posts you say you want to turn the blower on at 325° and then turn it off at 335°.
1. starting temp = 325°
2. time to reach target temp (let's say 10 minutes) = 10
3. target temp = 335°
4. holding time (let's say120 minutes) = 120
This is my programing formula, yours might be different:
Step 1. CO1=75° (starting temp lower than ambient)
Step 2. tO1=10 (minutes, time to reach target temp)
Step 3. CO2=110° (target temp)
Step 4. tO2=60 (minutes, holding time at target temp)
The CO1 and the tO1 etc., are displayed on the readout, all I do is enter the numbers.
On the front of your PID is the set button, when you push it once it what does the display read?
What does this button ">" do to the right of the set button, it might be used to change from temp to time.
The other two buttons must be used to increase of decrease the readout in the display.
What do the instructions say for changing temp and time, that is, what are the symbols used for temp and time? On mine C is temp and t is time.
Personally, I'm just starting to understand the parameters section and "Hy" and I decided I'm not going to mess with it until I was able to program the on and offs, my thinking is to get it running and then fine tune it as I become more knowledgeable with how the controller reacts to my programing.
I hoped this has helped a little, I spent days reading the instructions before the light started to glimmer.