ECI 33+ (3 Stage Cascade)
- Thread starter NoL
- Start date
Hey a little update; she's all brazed up except the flex and evaporator (still need to decide who's Evap is going on this!). So I began to pressure test the first stage.
I hooked up my N2 to the high side schrader and slowly increase the pressure.
Then something odd happened.
I'm checking my gauges on the front of this thing, and the high side one rises, but the low doesnt. So I figured I had a bad CPEV. Then I realized what it was.
The CPEV was set at 0psi.
So it was locking out the N2 flow.
With a laugh I opened up the CPEV and ta-da pressure on the low side. Fun to be able to adjust it all over. Can pop out the schrader on the low side and make N2 do whatever pressure I'd like. Like a miny regulator!
Pictures! (Sorry camera on phone)
I hooked up my N2 to the high side schrader and slowly increase the pressure.
Then something odd happened.
I'm checking my gauges on the front of this thing, and the high side one rises, but the low doesnt. So I figured I had a bad CPEV. Then I realized what it was.
The CPEV was set at 0psi.
So it was locking out the N2 flow.
With a laugh I opened up the CPEV and ta-da pressure on the low side. Fun to be able to adjust it all over. Can pop out the schrader on the low side and make N2 do whatever pressure I'd like. Like a miny regulator!
Pictures! (Sorry camera on phone)
starting to look like a mad scientist!
I shall name it Squishy, and it shall be my squishy!
Run caps and R507 decided to show up (that cylinder took 3 weeks to get here from Hawaii, but brand new for $85 was hard to pass up).
So what did I do? Checked my micron gauge, and after a week sitting, she still read 185 microns. Amazing; that meant charging time.
A burst of r290 (brought up to 20psi) to handle the oil, and then flipped to r507a. After I had maxed out the CPEV, I realized I was getting little adjust-ability, the rotary is just huge and doing it's job. More charge and I got adjust-ability back. I hit critical charge and the temperature started dropping. At four minutes the back end of the goal had snow. And six, it was all nice ball. By eight minutes the accumulator was showing signs of blizzard conditions.
She has a nice purr to her too, vibrating against the table it's on isn't helping but the 1/3hp thing on the condenser is working. The first coils are warm if a bit hot, but by coil loop two it's only 2C over ambient. That will change with load, but I doubt by much.
Onto the sexy pictures.
Run caps and R507 decided to show up (that cylinder took 3 weeks to get here from Hawaii, but brand new for $85 was hard to pass up).
So what did I do? Checked my micron gauge, and after a week sitting, she still read 185 microns. Amazing; that meant charging time.
A burst of r290 (brought up to 20psi) to handle the oil, and then flipped to r507a. After I had maxed out the CPEV, I realized I was getting little adjust-ability, the rotary is just huge and doing it's job. More charge and I got adjust-ability back. I hit critical charge and the temperature started dropping. At four minutes the back end of the goal had snow. And six, it was all nice ball. By eight minutes the accumulator was showing signs of blizzard conditions.
She has a nice purr to her too, vibrating against the table it's on isn't helping but the 1/3hp thing on the condenser is working. The first coils are warm if a bit hot, but by coil loop two it's only 2C over ambient. That will change with load, but I doubt by much.
Onto the sexy pictures.
noobieocer
New member
the mix of engineering terms, weather repots and animal comments got me so confused i just gave up reading your posts and just look at pics lol
