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Type: Posts; User: Jpaulsmith

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  1. I have seen lower seer units run higher head...

    I have seen lower seer units run higher head pressures in extreme heat due to smaller coil surface area. I always charge using superheat if I have a piston system. IMO you need to add gas.
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    694

    Call you Trane Rep. They should be able to tell...

    Call you Trane Rep. They should be able to tell you if you have model and serial.
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    1,248

    Did you clean the coils or just spray them down...

    Did you clean the coils or just spray them down with water? Lint is hell on coils.
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    1,042

    Sounds like its the outdoor TXV. I've replaced...

    Sounds like its the outdoor TXV. I've replaced many of them in rheem and rudd heat pumps.
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    506

    what is the reason for wanting to increase the...

    what is the reason for wanting to increase the blower size?
  6. Thread: retro fit

    by Jpaulsmith
    Replies
    2
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    476

    How long is the line set? Vertical or ...

    How long is the line set? Vertical or horizontal? If the old system is R-22 you need a new line set anyways unless your a fan of the R-11 flush.
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    1,553

    If you have 3 indoor units then make sure the...

    If you have 3 indoor units then make sure the control wires and the pipes are matched to the right unit. You should have 3 pipe ports marked A B C same with the control wires terminals inside the...
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    1,521

    You will also need duct detectors in the units...

    You will also need duct detectors in the units and a remote shutdown switch. You need to measure you windows, doors, heat load from sound system or musical instruments. What kind of insulation does...
  9. You need to check you loop gpm. The min on a...

    You need to check you loop gpm. The min on a cgam chiller is 102gpm. I had the same problem with one. They had the pumps set up for the air handlers which was 92 gpm.
  10. If they fried the bulb at install TXV will not...

    If they fried the bulb at install TXV will not work properly.
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    946

    what makes you think the coil is clogged? Did...

    what makes you think the coil is clogged? Did you check the filters?
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    3,433

    What model liebert is this?

    What model liebert is this?
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    832

    Sounds like your problem isn't with the p-66 or...

    Sounds like your problem isn't with the p-66 or the motor.
  14. Did you check the S.P in the supply duct? Sorry...

    Did you check the S.P in the supply duct? Sorry asking so many questions.
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    1,761

    if you have 2 going to the condenser one has to...

    if you have 2 going to the condenser one has to be a common. Being that the furnace is 1974 has anyone checked the heat exchanger I bet that thing is full of holes.
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    1,761

    Whats wrong with it?

    Whats wrong with it?
  17. return sounds small for a furnace capable of...

    return sounds small for a furnace capable of moving 3 tons of air.
  18. Sticky: Well I need a job after being laid off at a...

    Well I need a job after being laid off at a construction company. Seen an ad for a helper position at a local heating and air company. After a year I decided to go to college for the HVAC trade. ...
  19. What size was the unit and what size was the duct...

    What size was the unit and what size was the duct work?
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    2,100

    yellow jacket makes a tool its about 30-40 bucks...

    yellow jacket makes a tool its about 30-40 bucks but it works great for units still under pressure. I thinks its called core-vacuum charge tool.
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    832

    I may be mistaking but doesn't the P-66 act like...

    I may be mistaking but doesn't the P-66 act like a VFD in that it lowers and raises voltage to the fan to control the speed? If so is your motor rated for that. Have you made sure your P-66 is...
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    2,885

    whats the voltage on the motor? Is your motor...

    whats the voltage on the motor? Is your motor grounded properly?
  23. Replies
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    2,885

    Ohm your motor wires to ground to see if it is...

    Ohm your motor wires to ground to see if it is indeed grounded.
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    1,521

    See if you can find the Trane Commercial Load...

    See if you can find the Trane Commercial Load Caculation program. Its very helpful when sizing stuff like churchs, gyms etc. The main thing you want to do is figure out your heat load, like how...
  25. Converting 3 phase to single phase will not be...

    Converting 3 phase to single phase will not be hard as long as it is a 208/230 volt power supply. All I can say about the City Multi is to be sure your are commisioned and certified to install and...
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    1,939

    I think its odd that the head pressure doesn't ...

    I think its odd that the head pressure doesn't rise over 100psi but stranger things have happen. TXV sounds like the fix, but what do I know I'm just a dumb noob to the site. lol
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    1,939

    Are you checking the head pressure at liquid port...

    Are you checking the head pressure at liquid port or discharge gas port?
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    3,983

    have you tested the high pressure switches? Also...

    have you tested the high pressure switches? Also could have a wrong motor like ryan said. People love to pick up universal motor which is ok I think on residential units but on the bigger stuff I...
  29. Thread: RTU

    by Jpaulsmith
    Replies
    27
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    2,672

    Belts usually need to be replaced every year. ...

    Belts usually need to be replaced every year. Tightness depends on the unit, it should tell you in the owners/service manual. If you can't find it then I would go 5/16" of play. To check pulley...
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    3,843

    Assuming he has a call for cooling and getting...

    Assuming he has a call for cooling and getting 24volts from stat to Y1 input and he has checked pressure switches to be sure they are closed and still not getting 24 v to output for compressor...
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    I would say it is the board. If your getting...

    I would say it is the board. If your getting voltage in and nothing out the board seems to be fried.
  32. You could try to get the model and serial of the...

    You could try to get the model and serial of the unit and call your local dealer and have them look it up for you.
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