Unreal688
01-03-2012, 05:19 PM
Hi all
I've been working on a carrier chiller with the above compressor. The chiller has alarmed a couple of time on incorrect compressor phase rotation. Now I'm sure that it can only pick this up through the transducers reading the same pressure over a period of time. But the transducers are reading correctly, but i have noticed that when the 24v signal is sent to the compressor to run it takes a good couple of minutes before the comp actually starts. It has a motor protector on it which receives the 24v signal which then sends the 24v up to the contractor if the internal klixon is reading ok. This is the process thats taking its time so i think its probably the motor protector. All i wanted to know is that when i took the resistance of the klixon it was reading 288ohms and the comp temp was about 5-10 degrees C. Is this normal because it doesn't tell you what the klixon should read on the danfoss website
Thank you
Unreal
I've been working on a carrier chiller with the above compressor. The chiller has alarmed a couple of time on incorrect compressor phase rotation. Now I'm sure that it can only pick this up through the transducers reading the same pressure over a period of time. But the transducers are reading correctly, but i have noticed that when the 24v signal is sent to the compressor to run it takes a good couple of minutes before the comp actually starts. It has a motor protector on it which receives the 24v signal which then sends the 24v up to the contractor if the internal klixon is reading ok. This is the process thats taking its time so i think its probably the motor protector. All i wanted to know is that when i took the resistance of the klixon it was reading 288ohms and the comp temp was about 5-10 degrees C. Is this normal because it doesn't tell you what the klixon should read on the danfoss website
Thank you
Unreal