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  1. Replies
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    Yes could be

    Yes could be
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    We are the ones starting up the unit. As of now...

    We are the ones starting up the unit. As of now we wanted to make sure the sytem was tight. Come start up we will probably dump more refrigerent in. Sytem would probably cut out on low pressure if we...
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    Ya that’s what I thought

    Ya that’s what I thought
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    60’ of 1 1/8 60’ of 7/8 Once I got a valve...

    60’ of 1 1/8
    60’ of 7/8

    Once I got a valve core removal tool it pulled down quite fast. I put the valve core tool on the liquid line with a 3/8 hose. Had a 1/4 hose off the suction of the...
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    Thanks

    Thanks
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    I read the manual a few times through out the...

    I read the manual a few times through out the install. I wanted to ensure everything was being done properly. I did not see any info on pressure test and evacuation. There is information on charging...
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    Just a regular Honeywell economize. Control...

    Just a regular Honeywell economize. Control voltage is definitely something to look into
  8. Replies
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    Yes sir. Probably acting up when we are not around

    Yes sir. Probably acting up when we are not around
  9. Replies
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    I have found a few people who do genuinely want...

    I have found a few people who do genuinely want the MO because they can better understand the equipment. I agree with that 100%. What I do get annoyed with is MO SN police jumping in the...
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    I tried this when I was doing the original...

    I tried this when I was doing the original pressure test. It did indeed flow through txv then to the suction valve on the compressor. I guess the small restriction across the valve is no a problem...
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    If I did give you all the model numbers of each...

    If I did give you all the model numbers of each piece of equipment would even answer the question? Or is it one of those things some people love to say ?

    Dont be that guy
  12. Replies
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    I have solenoid magnet on the solenoid valve

    I have solenoid magnet on the solenoid valve
  13. Replies
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    Evacuation Question

    Hi

    I just finished a installing the copper line on a Liebert HVAC system. There are two circuit on this model.

    I preformed the pressure test and it held for 24 hours. My first question is do...
  14. Replies
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    No Flux required with Staybright? I have seen...

    No Flux required with Staybright? I have seen some rods online that say they have flux in the solder
  15. Replies
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    They are burning out on the contacts. The...

    They are burning out on the contacts. The connections terminals are all clear of any burn marks.

    What is the tolerance allowed between cap sizes?
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    They are 30 amp contactors. These contactors are...

    They are 30 amp contactors. These contactors are used all over the place here. It is just this one unit that is causing problems. They are needing replacement every month or so. I do not believe it...
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    Multiple Compressor contractor failures

    Hi

    I am currently working on a lennox unit TGA036S2DM1P
    The compressor is a Copeland ZR42K5E-PFV-130

    This unit has been burning up contactors. The compressor was also replaced a month ago....
  18. Replies
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    My join looked like this but no as much shoulder...

    My join looked like this but no as much shoulder as you have here.I probably could of let off the heat and built a bit of a shoulder
  19. Replies
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    I dont think anyone is scared of it. It is a bit...

    I dont think anyone is scared of it. It is a bit of a learning curve along with everything else in the trade.
  20. Replies
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    I had the wrong flux. The instruction on the...

    I had the wrong flux. The instruction on the bottle said it was good for steel brass ect. The part I did not read is it is for low temp soldering. (Prob 95/5 stuff). I got the right flux and it was...
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    The flux I was using said it is good for steel. I...

    The flux I was using said it is good for steel. I am not sure why it went up in smoke. From the videos I watched the flux is a indication of proper heat. When it turns translucent the temp is close....
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    Easy flow 45 Not So easy

    Hi
    Today I brazed about 100 connection with sil fos 15% silver. I had great penetration on all my joints. Things went well The problem was when I had two joints left. They were a copper to to...
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    According to the manual there is a 30 second...

    According to the manual there is a 30 second delay on break for cooling.
  24. Replies
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    Hi Guys. I was able to post the wiring diagram...

    Hi Guys.

    I was able to post the wiring diagram to the unit here. It definitely seems like something is not operation properly after reading your posts. I am trying to figure out the wiring diagram...
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    Ya I took some picks of the wiring diagram. Once...

    Ya I took some picks of the wiring diagram. Once I get to a pc I will post them here.
  26. Replies
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    I think it was about 3 minutes

    I think it was about 3 minutes
  27. Replies
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    Fan delay in cooling mode

    Hi
    I am working on a carrier roof top unit. When I got here I found the filters plugged and the belt broke on the blower assembly. I switched out the belt and filters. I still had low suction...
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    Thanks

    Thanks
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    LG LSU360HVC Ductless Split

    Hi

    I was working on a ductless split today. There was no cooling. The charge was gone. I did a pressure test, found the leak and fixed it. Went on to vac system down to 500 micros. Let system sit...
  30. Replies
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    Do the entire vacuum procedure. When your done...

    Do the entire vacuum procedure. When your done introduce refrigerant to the system. You only need a few psi. I never remove my hoses while system is in a vacuum. I always break vacuum with...
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    Thanks for all the posts. This makes sense now

    Thanks for all the posts. This makes sense now
  32. Replies
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    Thanks

    Thanks
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    Thanks

    Thanks
  34. Replies
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    Thanks

    Thanks
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    On this particular clock 1 and 4 are NC. This is...

    On this particular clock 1 and 4 are NC. This is refrigeration mode. Power is sent from the clock on 4 to the terminal strip in the evaporator. Does 4 on the evaporator terminal then power a tstat...
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    [QUOTE=Brooks978;25750960]There are many...

    [QUOTE=Brooks978;25750960]There are many different ways to wire many different kinds of defrost clocks. If your question is rooted in the way your specific clock is wired, then we need a model # to...
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    Some questions about walk in cooler

    Hi

    I am currently teaching myself how walk in freezer work. This is more of a generic question. I do not have a model a serial number for the MO SN police.

    The unit I am studying has a defrost...
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    Oh ok. The run winding has the least resistance ...

    Oh ok. The run winding has the least resistance

    Thanks
  39. Replies
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    I have studies ohms law a bunch. We had to solve...

    I have studies ohms law a bunch. We had to solve circuits that had given values at certain points in the circuit.The circuit were a combination of series and parallel. We had to solve the given...
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    I have check LPC HPC which is just a switch. If...

    I have check LPC HPC which is just a switch. If there is voltage present across the switch the switch is open. If there is O volts across the switch the switch could be closed. If it appears closed I...
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    Great. I think that answers my question. I...

    Great. I think that answers my question. I believe I was on the right track with my original post.

    Thanks
  42. Replies
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    What about R to W during heat and r to y during...

    What about R to W during heat and r to y during cool?
  43. Replies
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    I understand a thermostat is a couple of switches...

    I understand a thermostat is a couple of switches . What I am trying to figure out is the questions I posted in the first page.I am trying to figure out what the voltage reading would be at those...
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    On a call for cooling isnít the 24v going from r...

    On a call for cooling isnít the 24v going from r to y basically a line. I though there would be o volts across r to y during a call for cooling. There would be 24v present at r to y when the switch...
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    Thermostat wiring

    Hey

    I have a question about tstat wiring and the operation of the tstat. This is my though process on tstats. I think I may be over thinking this. I know what wires go were but want to understand...
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    yes I think this is the direction to go .

    yes I think this is the direction to go .
  47. Replies
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    I never mentioned anything about Freon. Freon...

    I never mentioned anything about Freon. Freon was banned in 2010 for new equipment. This was a brand new install. Freon is a just a brand name. Similar to water pump pliers being called channel...
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    Customers are fine.They are paying the quoted...

    Customers are fine.They are paying the quoted price. I am in Canada and it has not been very warm this summer. It has been very wet.

    Once We figure this out I will update the thread. Thanks for...
  49. Replies
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    Evacuation,nitro purge while brazing, pressure...

    Evacuation,nitro purge while brazing, pressure test, wet rag and thermal paste valves, valve cores removed, serve valves opened.
    Though this was all assumed

    I mentioned subcooling because I was...
  50. Replies
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    The evaporator is being starved and the condenser...

    The evaporator is being starved and the condenser is backed up with refrigerant. This must be a restriction in the liquid line somewhere in the liquid line up to and including the txv

    If the...
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