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Type: Posts; User: ACCMan

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  1. Replies
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    freeware

    http://www.filebuzz.com/findsoftware/Carrier_Hvac_Psychrometric/1.html
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    Carrier has a free software program for...

    Carrier has a free software program for psychrometrics (all known properties of air).
    With this program you can enter the wetbulb and drybulb temperatures and determine almost anything about the...
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    Air Noise?

    If the noise is from the diffusers insist on having butterfly dampers at the duct and leaving the diffusers open. Just vary the direction of air as needed.
    Low air and noise?
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    Throw away the flashlight.....?

    Batteries are found at any battery specialty shop.
    Failing batteries have no link to the lifespan of the board... I have been working on Lieberts since the solid state days... the boards normally...
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    Good Advice.....

    Good advice... I failed to mention about cutting the wires on the existing batteries as close to the battery as posible and soldering to them.
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    1,152

    http://www.carlylecompressor.com/Files/Carlyle_Com...

    http://www.carlylecompressor.com/Files/Carlyle_Compressor/Local/US-en/documents/020-611_withCover_LOWRES.pdf
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    Oil Pressure Issues

    What is you Superheat? Download Carriers "Green" book from their website and check all of your temperatures. The proper superheat will allow the compressor oil/casing to be warm enough to prevent...
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    Most important detail!

    If you purchase a cheap, garage style, recip. the compressor will pump oil. AS stated above.... the more expensive recips. are made for this type of application.
    Ever tried to clean oil out of a...
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    Battery Replacement

    You can order the batteries from an on-line battery supply house and solder them on. Same procedure as building RC battery packs or soldering on pc boards. Use flux core solder and don't overheat the...
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    8 CFM vacuum pump

    I was thinking about getting one to try in the Centrifugal Department and on the larger tonnage chillers. The full 1/2 ports/ hoses and gauges with 1/2 ports should pull the chillers down in a very...
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    Using a torch, using a heat gun, using a heat...

    Using a torch, using a heat gun, using a heat blanket, using hot water, or the heater in your vehicle.....

    If you are in this business you should know about the pressure temperature relationship...
  12. Thread: Pneumatics

    by ACCMan
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    1,686

    Reverse Testing

    OK,
    You installed a new regulator and if you temporarily cap the leaving side of the regulator you set it for 20#. You then hook it back up to the main control air line and observe the main air...
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    Factory Specs

    DryGuy hit the nail on the head... many times the conditions have been changed from the original design spes. The water temperature, the room air temperature, and the humidity setpoint must be as...
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    Harmonics

    If it was on a 06 compressor there was also a problem with the harmonics and the related sound that was solved with an orifice plate (shaped like a discharge gasket with several holes drilled in it)...
  15. Thread: Pneumatics

    by ACCMan
    Replies
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    1,686

    Copper or Plastic

    Do you have copper or plastic air lines?
    If you have plastic, a pair of needlenose pliers can help you find the air leak by carefully pinching off each air line leaving the control cabinet while you...
  16. Replies
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    Unloader Manual

    Thanks for the troubleshooting info. I was hoping to obtain form 230.10-m1 (804) to help in replacing the lipper seal and both orings on the load/unload piston. I know it is not suppose to be field...
  17. Replies
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    Service Instructions

    Would you be so kind as to send me the info. on the unloader

    Thanks
    ACCman
  18. Thread: Lee-Temp

    by ACCMan
    Replies
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    2,790

    Lee Temp

    No problems that I am aware of..... I find many of them with an incorrect charge due to failure to follow start-up manual charging instructions.
    Control valves for flooded condenser rarely fail.......
  19. Thread: Walking Shaft

    by ACCMan
    Replies
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    744

    Fan Shaft Problems

    Make sure you do not have locking bearings on both ends. Floating bearing is installed on the drive side (unless it is a "over-hung" fan) of the larger fan shafts with the "float" centered before...
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    Another Compressor Lost

    Anyone still having compressor problems with this Yr series?
    Customer just lost another compressor even with constant monitoring from York factory via direct connection with York. Local York Techs...
  21. Thread: megger uses

    by ACCMan
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    2,655

    Compressor Meg Ohm Readings

    Amprobe use to include a manual with their crank style megger that included expected readings from a hermetic compressor while allowing for the oil.

    Also consider temperature and humidity when...
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    Things to Consider

    Ask yourself why the customer wants a full maintenance contract.
    The best answer is for budget purposes.
    Do they have problem units or systems that have recurring repairs?
    Are the units so old the...
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    Clarification

    Its sounds like my analogy of the "window" is very close to being correct when the Tridium system is used on an older generation "closed" system.
    My point being, there are still two vendors charging...
  24. Replies
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    Clarification

    My questions are based from a customers point of view with no bashing intended.
    The company I am with is currently looking at the Vykon Integrator Agreement.
    With that said, and knowing the goal is...
  25. Thread: Compressors

    by ACCMan
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    712

    Bypass Control

    Capacity or load control by reducing output capacity of the compressor.
    Three head compressor with one bypass typically gives 2/3 capacity when operated.
    Hot gas style and suction bypass types. Can...
  26. Thread: Trane manual

    by ACCMan
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    1,130

    Trane Eagle.... Don't leave home without it!

    No, I am not a Trane Rep. or sales rep.
    We have been using the Trane Eagle system since it was developed and if you deal with many Trane units its worth the subscription price.
    It is currently over...
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    Any Leak.... not just Refrigerant

    Don't limit your ultra-sonic to just refrigerant. I have used one for many years, (along with soap bubbles, electronic, and halide) on all types of HVAC systems, pneumatic systems (works great...
  28. Thread: KMC or Alerton

    by ACCMan
    Replies
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    1,404

    The Quality of the Area Rep is the Correct Answer!

    Regardless of the brand of control system you have installed, it is only as good as the installer/programmer.
    With that said, talk to some of customers of the installing controls company to find out...
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    A "Window of Opportunity" ?

    Aren't you installing a "window"?
    If the existing hardware has a problem are you replacing it with a Tridium controller? Can you re-program the base controller through Tridium?
    Are you eliminating...
  30. Thread: customers ??

    by ACCMan
    Replies
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    1,445

    Non-compete?

    Check your State laws. Many States have "right to work" laws and no contract is binding because you make your living in this career field.

    That aside..... Be honorable....don't discuss it at all...
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    Labor Estimate

    I would estimate 16 hours max. with an exclusion for any problems found when the system is started up and you are looking for the reason the valves were damaged. Since you changing the valve plates,...
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    Carrier Thermistor Checkout Voltage vs. Temperature

    I know it is more trouble to check the thermistors with the temperature/resistance method... but I have always gotten poor results using the voltage method even with a Fluke meter.
    Keep in mind,...
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    Flow Issue?

    If your thermistors checkout O.K. then you may have a flow issue. If you have an "open loop" system where sediment and trash can enter the barrel you may have enough build-up in the bottom of the...
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    Approach is listed in start-up Manual

    The start-up manual lists the Delta T as 10 degrees at full load with the listed water flow.
    If your water flow is more or less the Delta T will vary. Find the rated pressure drop for your chiller...
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    Purge, or recover :-) the refrigerant in the...

    Purge, or recover :-) the refrigerant in the water system. The refrigerant blew into the water side until it equalized, then the system filled with water as some of the pressure relieved. You can...
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    ACCMan

    Name of the company I work for......................
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    St. Louis Helicopter

    On our last lift for Fedex we made 100 plus lifts on the first day, then they came back the next morning fo finish due to high temperatures (thin air).
    They charge per lift, so you have to have...
  38. Thread: VVT Help Please

    by ACCMan
    Replies
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    VVT Bypass

    I didn't suggest removing the bypass. As I stated, a properly set-up VVT system works fine. The full link address was listed in the edit area.
  39. Thread: VVT Help Please

    by ACCMan
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    Minimum airflow

    You are right about the minimum airflow. The old bypass served two functions, it maintained static pressure on the supply duct and maintained a minimum air flow to prevent compressor failure due to...
  40. Thread: Help!

    by ACCMan
    Replies
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    1,966

    Keep your comments to yourself?

    You asked the questions, if you don't want to hear the technical issues involved in the task you are attempting then why did you ask for help?
    I have spent some time actually investigating and...
  41. Thread: Help!

    by ACCMan
    Replies
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    1,966

    Keep us Posted

    Keep us posted...
    but,
    How can you justify changing the compressor, exv, driers, and capacity output versus installing electro/mechanical on a well designed system.
    Good Luck
  42. Thread: Help!

    by ACCMan
    Replies
    33
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    1,966

    Compressor size issues

    I avoided the compressor changing idea for the following reasons:
    1. The footprint of the compressor in the new unit is allready too large. It is a 5 ton 134a scroll compressor. Chances are you will...
  43. Thread: Help!

    by ACCMan
    Replies
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    1,966

    Change the controls on the new unit.

    I reread your original request. Have you considered changing out the controls on the new unit to mechanical controls. The warranty will be gone...but a high and low pressure switch and a mechanical...
  44. Thread: Help!

    by ACCMan
    Replies
    33
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    1,966

    The reason is not clear!

    Please explain the reason or what you are trying to accomplish.
    Can you not get the R22?
    Is the compressor shot on the R22 unit?
    Are you trying to reduce capacity?
    R22 is still available, just...
  45. Thread: Help!

    by ACCMan
    Replies
    33
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    1,966

    Capacity issue

    Why would he want to put a 38 caliber bullet into a 45?
    Capacity issues, Oil issues, metering issues.
    Contact the Dupont refrigerant hotline for details and information on the best swap for your...
  46. Replies
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    All the info and parts you want!

    Hi,
    I am in the process of restoring a Bastian and Blessing from 1949.
    Do yourself a favor and google American Soda fountain .com
    We replaced the condensing unit with a new one and replaced the...
  47. Oil equalizer lines

    There should be two oil equalizer lines....one connecting the two compressors at the sight glass port of each compressor in the circuit, and another connected on the motor barrel under each...
  48. Replies
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    30GB Eprom

    What problem do you have?
    On start-up the fans will come on and run for a predetermined time and then scale back to operate off of the motormaster. Early problems consisted of not enough fans...
  49. Replies
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    National Fire Protection Association 70E

    We have had to be compliant the last couple of years. The National Electrical Code makes reference to it and the NFPA has written a safety policy that lawyers and OSHA use as a guide. If your company...
  50. Replies
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    Hot Gas Applications

    If I might add......
    There are many uses, and needs, for HGBP.
    1. Preventing short cycling by opening as the compressor reduces its steps of capacity. Normally controlled by the capacity...
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