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Type: Posts; User: Entropie

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  1. Replies
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    If the motor is rated 575VAC @ 60Hz, the drive...

    If the motor is rated 575VAC @ 60Hz, the drive should provide 575VAC @ 60Hz. Usually a motor accepts a +/- 10% variation in input voltage which would be 632VAC. You measured 650VAC. If you apply...
  2. VFD compressor has benefits but disadvantages as...

    VFD compressor has benefits but disadvantages as well. Here a few:

    + superior water temperature control
    + increased part load efficiency
    + soft start
    + reduced compressor cycling
    + reduced...
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    Has anyone got the service manual for the LSC...

    Has anyone got the service manual for the LSC screw. The Hartford internet page doesnīt issue that.
  4. Replies
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    1,675

    The valve is physically the same, but might be...

    The valve is physically the same, but might be different from size. The control algorithm in the control is the same except of the low suction superheat action.
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    Itīs all about the NEMA rating of the panel:bump:

    Itīs all about the NEMA rating of the panel:bump:
  6. Replies
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    4,529

    The software version is ok. There are no issues...

    The software version is ok. There are no issues with the electronic expansion valve control. I suspect that the issue is when the compressor unloads to start the lag system. The degree of opening of...
  7. Replies
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    The type of chiller you mentioned...

    The type of chiller you mentioned (YCAS0140EC17YGADBC) does indicate to me that it is a style G chiller. Form 201.18-nm1 does refer to style F chillers. They are basically quite the same but your...
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    Do you have the manual for the chiller? It is...

    Do you have the manual for the chiller? It is form 201.19-nm1. It is quite good, a lot of information about almost everything of the chiller.
  9. Replies
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    It sounds to me that your YCAS has electronic...

    It sounds to me that your YCAS has electronic expansion valves? Does the chiller has suction line HTX installed? What refrigerant R22 or R407C? Do you know the software version of the EPROM?
  10. The following qoutation is from the...

    The following qoutation is from the article:"Undercover agents posing as members of an al Qaeda sleeper cell met with Smadi several times while the terrorist suspect hatched his plot to commit jihad,...
  11. Replies
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    The solenoid valve on the compressor is a 3-way...

    The solenoid valve on the compressor is a 3-way pressure regulating valve. It does control the oil pressure applied to the slide valve in accordance to the current running (voltage applied to the...
  12. Replies
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    You should check compressor #2 for proper slide...

    You should check compressor #2 for proper slide valve operation. The amount of starts to hours is an indication for a slide valve problem (slide valve stuck in high position, broken sv spring, lip...
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    The motor protection / CT module can be reseted...

    The motor protection / CT module can be reseted by removeing itīs 24V power supply. Therefore you have to check always if the mp module shows a fault code. If yes, the internal contact is open, this...
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    There is no connection between the coolant and...

    There is no connection between the coolant and the electrical power! The reason why deinonized water is used, is corrosion. But you should never use anything else in the system then the original...
  15. I am really tired of reading silly complaints...

    I am really tired of reading silly complaints about Obama......It is not good if you do not stand behind your president, this encourages others to gain an advantage over America. Therefore, general...
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    What about to fit a much smaller 3 phase motor...

    What about to fit a much smaller 3 phase motor (e.g. 3hp) to the output of the SSS instead of the compressor motor? Then starting and take measurements until the chiller trips on something else (low...
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    I suspect that they are quite expensive, even the...

    I suspect that they are quite expensive, even the single SCR`s! It isnīt easy to test them, because you canīt test them under load. If you have access to a FLUKE 434 power analyzer you could probably...
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    It will have almost no affect on the starting...

    It will have almost no affect on the starting amps with or without compressor coupled, because the starting current is mainly caused by the breakaway torque on the rotor itself. The problem could be...
  19. If there are just a few days where you have...

    If there are just a few days where you have design ambient conditions you could consider to choose a smaller system (lower installation / equipment and operation costs) with an additional electrical...
  20. Thread: Reincarnation

    by Entropie
    Replies
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    4,126

    Scientificly itīs totally clear! Energy cannot...

    Scientificly itīs totally clear! Energy cannot disapear, only change itīs state. We are energy, hence we cannot disapear but we transform into something new. Probably a lot of the atoms and molecules...
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    worldīs most known rogues

    Who is worth to be listed?
  22. Thread: Water temp

    by Entropie
    Replies
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    9,613

    Sorry, but this does not allign with the facts i...

    Sorry, but this does not allign with the facts i know about HVAC! Your cooling loop is undersized or the heat transfer / conduction in the ground is less then calculated! If the ground loop canīt...
  23. Thread: Water temp

    by Entropie
    Replies
    95
    Views
    9,613

    As mentioned previously, the cooling/heating...

    As mentioned previously, the cooling/heating capacity of your system depends on the evaporating and condensing temperatures. Higher condensing temperatures cause efficiency and capacity losses. Bring...
  24. How many hrs in the year will be at design...

    How many hrs in the year will be at design conditions (maximum heat/cooling load)? The less it is it the more it makes sense to go for a two stage ac/hp and an additional electrical heater. Have you...
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    I did send you already a pn. So it seems to be...

    I did send you already a pn. So it seems to be enabled.......
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