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Type: Posts; User: ticotech cayman

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  1. To test the TXV actally place the sensing buld in...

    To test the TXV actally place the sensing buld in a cup with ice then warn it up just to determinate if the valve is responding, if the valve is stuck wide open like you are suspecting, why the...
  2. OT 50F , suction is a way high, remove the...

    OT 50F , suction is a way high, remove the sensing buld and warm it up, with ur hand that should start to close the TXV, IF it does not, valve need to be repraced or the head.

    Also due the the...
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    Delta T across the coil is kind of high, it could...

    Delta T across the coil is kind of high, it could be due to low air flow, and someone charged the system by pressure only, pressure low oh yes more refrigerant and more and mo:gah:re till it gets...
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    Is it a chilled water AHU? Few week ago I...

    Is it a chilled water AHU?

    Few week ago I went to a service called, I found one of the fuse blown, the costumer told me that it wasn't the first time this happened,

    The issue had been ...
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    have the tranformer been replaced? maybe the VA...

    have the tranformer been replaced? maybe the VA ARE TOO SMALL , LOOSE OR RUSTY CONECTION SOMEWHERE
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    yeah thats true.Good point

    yeah thats true.Good point
  7. Replies
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    3,182

    with a axu 2 pole relay,kill the common of the...

    with a axu 2 pole relay,kill the common of the fan and in the other contactor the yellow wire for cooling
  8. Replies
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    INTECBILL; IF the condenser is restricted the...

    INTECBILL; IF the condenser is restricted the high pressure 'll increaes as well the compressor amps drawing , due to that , the widing temp 'll raise and the compressor overheats , but that...
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    normally the dip switches have one for cool and...

    normally the dip switches have one for cool and other one for heat mode
  10. make sure he , set the dip swicthes rigth , to...

    make sure he , set the dip swicthes rigth , to mach out door unit.the grill siza is can of small too.
  11. Replies
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    just check on post #2 its already explained over ...

    just check on post #2 its already explained over there, why this happens / and the unit was a 2 ton corfort tech , the piston i think it was 23 i dont remenber but it definely was a lot smaller...
  12. Replies
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    2,594

    belive it or not the orifice works like this ...

    belive it or not the orifice works like this larger piston = lower suction and higher head pressure, and smaller piston higher suction pressure and lower head pressures (in the same size evap), the...
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    ok now it has sence , thanks a lot for ur help,...

    ok now it has sence , thanks a lot for ur help, one more last thing with a larger piston the suction pressure gets lower so I think if I AM not wrong , what happens in this case the refrigerant ...
  14. Replies
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    2,594

    oh and other thing ,was than the liquid line with...

    oh and other thing ,was than the liquid line with a lower high head pressure felt warmer? I dont get it
  15. Replies
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    thanks, that is what I was thinking about the low...

    thanks, that is what I was thinking about the low side but i could not understand what was happening with the high side, now has sence thanks for ur help. what i dont get is why like u said smaller...
  16. Replies
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    2,594

    fix orifice question?

    hey guys , I got a called the other day , costumer reported outdoor unit making a huming noise , I arrived to the place ,there was a little huming noise in the compressor , not too loud and I ...
  17. Replies
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    my bad !! lol

    my bad !! lol
  18. Replies
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    3,750

    a high leg won't affect the compressor in three...

    a high leg won't affect the compressor in three phase system , check the rotation,must of 5 ton system have a single face motors. how was the pressures? was the compressor noise after stared it up?
  19. Replies
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    3,346

    he changed the coil and few days later he found a...

    he changed the coil and few days later he found a obstruction in the dryer, if he service it right the first day that would not ever happend . that seens to me just a bad installation and the tech...
  20. i have done it , more like small refrigeartion...

    i have done it , more like small refrigeartion aplications , when i dont have a label plate with amount of freon , but also checkin TD and pressures at the same time , this its just to make sure...
  21. Replies
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    1,636

    the manual will tell the min cfm for ur ahu, but...

    the manual will tell the min cfm for ur ahu, but u deffinily have to check the system 's pressures. the compressor could be flooding with liquid freon and not necesary icing up at the evap.
  22. some times what happends the drain is not glogged...

    some times what happends the drain is not glogged its just than the drain line gets air lock specially the ones that coming under the house, cause makes like a kind of p -trap , put some water in...
  23. Replies
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    does the fan seen that is working full speed?...

    does the fan seen that is working full speed? .... are the fan motor and fan blades originals or they have been replaced? I had a problem like that and the fan blade some other tech had replaced it...
  24. Replies
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    2,350

    yeah it can fail totally closed , if the gas in...

    yeah it can fail totally closed , if the gas in the sensing bulb leaks out , we need more info to help u out, is this system a dual system or single system?
  25. Replies
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    THE FIRST TECH ADDED FREON AND THEN HE SAID THE...

    THE FIRST TECH ADDED FREON AND THEN HE SAID THE PRESSURES IS TO HIGH , HUH ? YEAH IT SOUNDS LIKE A TXV PROBLEM , I WISH WE CAN KNOW THE PRESSURES READING.
  26. Replies
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    if u want to know is the contact 1 -2 is open,...

    if u want to know is the contact 1 -2 is open, just check for voltage between 1 -2 terminal ,when contact is close its voltage will be 0 as soon the compressor start and the contact open u will have...
  27. Replies
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    2,537

    if u want to make the mastic looks better just...

    if u want to make the mastic looks better just take a piece of duct tape or any kind of tape and place it across the duct to make a straight line , repaint it and remove the tape ,thats how i...
  28. Replies
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    is there a filter in the liquid line?

    is there a filter in the liquid line?
  29. Replies
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    i was planning to try that ,this coming week and...

    i was planning to try that ,this coming week and see what happen. thanks fot ur help , i will post the results.
  30. Replies
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    i when to check the sensor and one of them has a...

    i when to check the sensor and one of them has a note that other tech wrote down bad sensor, both sensor have teh same reading 90f cond sat temp insteadof 72f cond sat temp.
  31. Replies
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    yes they both reading wrong,

    yes they both reading wrong,
  32. Replies
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    well there is always something new to learn in...

    well there is always something new to learn in this field , i have not met a tech that knows it all. dont u agree graham? the cond sat temp sensor, i dont think is reading right,so this unit has a...
  33. Replies
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    i did it with two gauges, i know what u mean one...

    i did it with two gauges, i know what u mean one with will be more acuraty reading, i dont know if the evaporator was over heated, i been here for 5 month only,i will try to do what captisano say and...
  34. Replies
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    the compressor are sweating a litte bit , but i...

    the compressor are sweating a litte bit , but i dont think they are flooded with liquid
  35. Replies
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    graham, water delta p? to be honest i dont know...

    graham, water delta p? to be honest i dont know what is that, can u please explain it. thanks
  36. Replies
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    Posts: 8 finally i went back today, the...

    Posts: 8

    finally i went back today, the chiller is a rtaa80, both system are doing the same thing the liquid line is sweating like crazy, its 58F, OK SUCTION LINE IS 50 PSI, HIGH SIDE THE...
  37. Replies
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    thank u guys, all the pressure , temp etc i did...

    thank u guys, all the pressure , temp etc i did it with my gauges and termometer

    the only sensor that was not reading right was the saturated cont temp, my gauge said 142psi hs andthe display 172...
  38. Replies
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    my supervisor told me that he checked the water ...

    my supervisor told me that he checked the water
    strainer and it was not bad . but there is a back up system, that one is running now and its using the same water and does not have that problem.
  39. Replies
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    Thanks guys for ur inputs, yeah as soon it leaves...

    Thanks guys for ur inputs, yeah as soon it leaves the condensor the liquid lines get really cold and yes there is bubbles in the sight glass , but the reason why i did not think was a restriction is...
  40. Replies
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    finally i went back today, the chiller is a...

    finally i went back today, the chiller is a rtaa80, both system are doing the same thing the liquid line is sweating like crazy, its 58F, OK SUCTION LINE IS 50 PSI, HIGH SIDE THE DISPLAY SAYS 172PSI...
  41. Replies
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    dump valve maybe is desconect it, so does not...

    dump valve maybe is desconect it, so does not dump the water after every harvest, the water start to loose its properties like minerals etc and start to get white.
  42. Replies
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    thanks for ur inputs, i m going to work in that...

    thanks for ur inputs, i m going to work in that system this coming week i ll provide more data, that night,i was working on the system at 1100 pm and there was a back up chiller so we just switch...
  43. Replies
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    there is not solenoid, and the line start to...

    there is not solenoid, and the line start to sweat even before the dryer as well, that was few weeks ago,as far i remenber the superheat was like 4f what its good but there was like 16 degrees...
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    RTAA QUESTION

    WHATS UP GUYS , I'M STARTING TO WORK ON RTAA CHILLERS , THE OTHER DAY I WAS WORKING ON RTAA90 WTH MY CO-WORKER A SENIOR TECH AND THE LIQUID LINE WAS SWEATING A LOT IT WAS REALLY COLD, SO HE TOLD...
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