Originally Posted by systemaxd
If using a window A/C unit for cooling the cpu and trying to figure out the thermostat for controlling the unit.
For wiring and cooling setup on the a/c unit, completely remove the thermostat controls, sensor wiring, etc. You will need to wire in the compressor into a start coil/capacitor, relays, chill control board (basically a circuit board that controls the compressor turning on and reaching say -30C, then the mother board will power up) then cable going to 120V wall outlet.
You seem to have a decent under standing of the evap and a/c unit for chilling/freezing. From my extensive reading of phase change build logs only part of a a/c unit you can keep will be the compressor and maybe the condenser for direct die. Got cap tube on hand or TXV? new gas you want to charge with? digital probe thermometer reading for +120C to -120 or lower as needed to test superheat/subcooling which is regarding the tuning of the heat load and amount of gas to charge with? Calibrated heat load (takes place of cpu) for evap head once built?
I dont have the best understanding of it yet (this is my first build). But yes, i just orderd the cap tube, and im just buying a chilley1 evap. Just because this is my first build
I didnt know that the thermometer had to go that high/low. But i guess your right.
And that was all i was aiming to use off the A/C unit. I imagine im still saving about $100.
I'm going to charge with propane because i dont have my license yet.
I'm stilla little concerned about how im going to wire this thing because my budget is running low and i dont want to pay $135 for a new control (price from undertheice) Can i just do something like hook it up to a switch then manually start up my comp once i see that the evap has reached a decent temp?
I'm open to suggestions on wiring it up, thx
Also, what do i do if i find that my calculation for cap tube length was wrong after i put it in? Do i have to rip it out of the evap then refil the unit with refridgerant?? because i imagine that i braze it to the Evap, correct?