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  1. Thread: KMC LC500

    by HJ Controls
    Replies
    1
    Views
    89

    KMC LC500

    I have some old kmc lc500 controllers. Any one know where I can
    download a users guide. Also I don't know if I should change the firmware
    chip or if these things have a memory chip.

    The...
  2. Replies
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    1,171

    time-delay relay

    time-delay relay
  3. Replies
    4
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    461

    Have rc2 and toolkit. I thought i was configuring...

    Have rc2 and toolkit. I thought i was configuring the controller wrong. I didnt port forward correctly.
  4. Replies
    4
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    461

    MachProCom. Not webcom. Trying to figure out how...

    MachProCom. Not webcom. Trying to figure out how to setup the configuration. Where to you input the ip address and mac for the router I am connecting to.
  5. Replies
    4
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    461

    Mach-ProCom

    Anyone know how to configure and set up controller for ethernet
  6. Replies
    7
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    666

    We have some customers with older systems still...

    We have some customers with older systems still using modems. I couldn not remember how to access modem to program. Thanks for the help.
  7. Replies
    7
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    666

    Modem Config

    trying to config a modem using hyperterminal. Anyone know the steps to doing this.
    I am connecting through a usb to serial adaptor.
  8. Thread: Modem

    by HJ Controls
    Replies
    7
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    567

    thanks I found it. I had a brain fart and was...

    thanks I found it. I had a brain fart and was looking for hyperlink
  9. Replies
    8
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    1,334

    you will have to have rc studio and an xport2 to...

    you will have to have rc studio and an xport2 to connect. then if it is rcp you will have to change the points. example would be a variable you would change from var to av or bv, likewise an input...
  10. Replies
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    1,334

    more than likely it is rcp and not bacnet

    more than likely it is rcp and not bacnet
  11. Replies
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    1,334

    more than likely it is setup as rcp protocal and...

    more than likely it is setup as rcp protocal and not bacnet.
  12. Thread: Modem

    by HJ Controls
    Replies
    7
    Views
    567

    Modem

    I need to program a modem but cannot remember the name of the program I used.
    Hyperterminal or something like that. Or if anyone can help another way I would appreciate the help.
  13. Replies
    16
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    1,938

    Sorry working a lot of ot. System was not...

    Sorry working a lot of ot. System was not flooding. the discharge pressure relief was week. The oil screen was plugged up. I didnt believe it as this compressor was changed out a few weeks ago. Not...
  14. Replies
    16
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    1,938

    I think it has to do with the crankcase being to...

    I think it has to do with the crankcase being to hot and thinning out the oil? I need to know if these compressors use suction cut off unloading or just bypass. I got 2 systems doing the same thing...
  15. Replies
    16
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    1,938

    Oil Pressure

    Technical Systems M# 20A0CS40 460 VOLT Condenser, Dunum Bush Air Handler very old. Copeland compressor model 6DS3R40M0-TSN-800. epr, suction acculator, reciever and hot gas defrost.

    I am running...
  16. Replies
    8
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    1,279

    go online and get the paperwork for that unit.

    go online and get the paperwork for that unit.
  17. dont forget circuit has to be fully loaded before...

    dont forget circuit has to be fully loaded before checking. if circuit is unloaded then you could see bubbles. but the lower the ambient the higher the subcooling, the higher the ambient the lower...
  18. Replies
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    893

    Dont know Metasys but ask them if they could put...

    Dont know Metasys but ask them if they could put a power loss statement in the program. What I mean is if there is a power loss then occupied setpoint would = say 70 and unocc. setpoint would = 80...
  19. Replies
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    1,890

    use a drier with 1/4" flare fittings, attach...

    use a drier with 1/4" flare fittings, attach between two hoses and run the refrigerant through the drier as your charging the system. And remember to purge the hoses.
  20. Replies
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    584

    only four days youll be ok with changing the oil...

    only four days youll be ok with changing the oil and installing hi mosture driers.
    We had a fire system guy drill a hole in a condenser and it was at least two weeks before we got approval for...
  21. Replies
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    848

    highly unlikely you would have air in water...

    highly unlikely you would have air in water cooled system. if you did then you would have high head pressure
  22. Replies
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    408

    oil pressure problems: flooding, running unloaded...

    oil pressure problems: flooding, running unloaded for long periods, broken valves or rods, restricted oil line tube, bad oil pressure switch.
    if you low head and high suction i would look at your...
  23. Replies
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    498

    230 and 240 same thing. make sure your not wired...

    230 and 240 same thing. make sure your not wired for 208. Check belt tension. never heard of a start cap on a motor do you mean run cap. check starter, overload and wire teminals for any loose...
  24. Replies
    23
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    1,372

    residential units usually carry small amounts of...

    residential units usually carry small amounts of refrigerant. if you are having trouble recover the refrigerant, add r22 and pressurize with nitrogen.
    as far as leak detectors i like the d-teck. the...
  25. Replies
    21
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    1,052

    txv by subcooling, cap tube or orfice by...

    txv by subcooling, cap tube or orfice by superheat.
  26. Replies
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    422

    thanks.

    thanks.
  27. Replies
    4
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    422

    your right. i was trying to figure a way to read...

    your right. i was trying to figure a way to read static, maybe convert the velocity or some thing like that.
  28. Replies
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    422

    Reliable Mach-Air

    I know this controllers shows fpm and cfm but can you read static pressure
  29. Replies
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    853

    usual causes for oil pressure problems are...

    usual causes for oil pressure problems are flooding, low load, extended run time unloaded, broken valves, problems with hydrolic unloader assembly if it has one, also trash can get into the oil...
  30. Replies
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    890

    10-12 degree subcooling is usually normal, that...

    10-12 degree subcooling is usually normal, that being siad you are way overcharged. first thing to do is remove refrigerant till you get about 12 degrees subcooling then recheck.
  31. Replies
    11
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    2,284

    usually it is 1 1/2" to 2"

    usually it is 1 1/2" to 2"
  32. Replies
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    990

    way undercharged. subcooling should be over 10...

    way undercharged. subcooling should be over 10 and you are not close to flooding with 35 degree superheat. if you were flooding superheat would be less than say 5 degrees.
  33. check heaters. when humidty is high and setpoint...

    check heaters. when humidty is high and setpoint is reached, heaters should be energized to temper the air.
  34. Replies
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    1,308

    my bad i was thinking 410a.

    my bad i was thinking 410a.
  35. your running this unit in heat mode with 90...

    your running this unit in heat mode with 90 degree condenser water. water temp should be no more than 80 but i would lower it into the 70s in heat mode and maybe less.
  36. Replies
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    6,379

    good way to get a lot of guessing is to ask a...

    good way to get a lot of guessing is to ask a question and give no info.
    what is your entering and leaving water temp, superheat ,subcool,suction and discharge pressure, do you have a condenser...
  37. Replies
    11
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    2,470

    use a johnson p66 variable speed control. a lot...

    use a johnson p66 variable speed control. a lot better than off/ on.
  38. Replies
    12
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    1,308

    Ditto. Piston/txv. for the 10000000000 time. if...

    Ditto. Piston/txv. for the 10000000000 time. if you want a correct anwere we need subcooling and superheat. for the 100000000000000000000000000 time. and is it txv or piston your using. your head...
  39. Replies
    13
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    1,552

    install a txv and then you want have to worry...

    install a txv and then you want have to worry about it.
  40. Replies
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    7,217

    need info unless you want a bunch of guessing and...

    need info unless you want a bunch of guessing and part changing.
    whats your superheat and whats your subcooling.
    if you want refrigerant diagnosis this is the info you will always need to give.
    if...
  41. Replies
    4
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    695

    to be honest, the only numbers that are needed...

    to be honest, the only numbers that are needed for troubleshooting are sh and sc. these are the two numbers needed. if you have 0 subcooling it means you are low on charge but we need sh to verify...
  42. Replies
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    544

    shouldnt be a problem.

    shouldnt be a problem.
  43. Replies
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    1,681

    did you check start and run amps, wouldn't hurt...

    did you check start and run amps, wouldn't hurt to make sure your not flooding and check wiring from contactor to compressor.
  44. are you giving us the furnace btus, if so then...

    are you giving us the furnace btus, if so then your probably looking at a 5 ton. can you get the model off of the coil. line sizes. if all else fails go to the same size apt and check and see if the...
  45. Replies
    4
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    598

    high subcooling means overcharge, that with high...

    high subcooling means overcharge, that with high superheat means restriction.
    check your txv and driers.
  46. Replies
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    2,051

    unit uses thermistors. you cannot troubleshoot...

    unit uses thermistors. you cannot troubleshoot refrigerant problems without information. what is your superheat, what is your subcooling. are thermistors accurate. comfortlink will show you what the...
  47. Replies
    2
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    551

    thanks

    thanks
  48. Replies
    2
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    551

    KMC Linkage

    I have an HPO5202 linkage that the clips inside are broken. The linkage(hpo5202) has been discontinued, anyone know if theres a replacment or of a linkage the will replace these.
  49. Replies
    11
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    2,678

    had the same thing happen. reversed the wires on...

    had the same thing happen. reversed the wires on two contactors and done.
  50. Replies
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    881

    need to repost this in the controls forum. i...

    need to repost this in the controls forum.
    i believe net view is a display that has been preprogrammed for the customer to view certain aspects of your control system. you can view temps, pressures,...
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