Search:

Type: Posts; User: HJ Controls

Page 1 of 4 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    12
    Views
    1,109

    time-delay relay

    time-delay relay
  2. Replies
    4
    Views
    449

    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.
  3. Replies
    4
    Views
    449

    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.
  4. Replies
    4
    Views
    449

    Mach-ProCom

    Anyone know how to configure and set up controller for ethernet
  5. Replies
    7
    Views
    652

    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.
  6. Replies
    7
    Views
    652

    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.
  7. Thread: Modem

    by HJ Controls
    Replies
    7
    Views
    552

    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
  8. Replies
    8
    Views
    1,277

    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...
  9. Replies
    8
    Views
    1,277

    more than likely it is rcp and not bacnet

    more than likely it is rcp and not bacnet
  10. Replies
    8
    Views
    1,277

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

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

    by HJ Controls
    Replies
    7
    Views
    552

    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.
  12. Replies
    16
    Views
    1,894

    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...
  13. Replies
    16
    Views
    1,894

    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...
  14. Replies
    16
    Views
    1,894

    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...
  15. Replies
    8
    Views
    1,266

    go online and get the paperwork for that unit.

    go online and get the paperwork for that unit.
  16. 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...
  17. Replies
    8
    Views
    890

    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...
  18. Replies
    18
    Views
    1,868

    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.
  19. Replies
    5
    Views
    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...
  20. Replies
    11
    Views
    840

    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
  21. Replies
    5
    Views
    392

    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...
  22. Replies
    6
    Views
    487

    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...
  23. Replies
    23
    Views
    1,346

    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...
  24. Replies
    21
    Views
    1,035

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

    txv by subcooling, cap tube or orfice by superheat.
  25. Replies
    4
    Views
    410

    thanks.

    thanks.
  26. Replies
    4
    Views
    410

    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.
  27. Replies
    4
    Views
    410

    Reliable Mach-Air

    I know this controllers shows fpm and cfm but can you read static pressure
  28. Replies
    4
    Views
    832

    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...
  29. Replies
    4
    Views
    805

    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.
  30. Replies
    11
    Views
    2,227

    usually it is 1 1/2" to 2"

    usually it is 1 1/2" to 2"
  31. Replies
    20
    Views
    974

    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.
  32. 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.
  33. Replies
    12
    Views
    1,269

    my bad i was thinking 410a.

    my bad i was thinking 410a.
  34. 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.
  35. Replies
    20
    Views
    5,951

    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...
  36. Replies
    11
    Views
    2,381

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

    use a johnson p66 variable speed control. a lot better than off/ on.
  37. Replies
    12
    Views
    1,269

    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...
  38. Replies
    13
    Views
    1,502

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

    install a txv and then you want have to worry about it.
  39. Replies
    33
    Views
    6,973

    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...
  40. Replies
    4
    Views
    678

    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...
  41. Replies
    4
    Views
    533

    shouldnt be a problem.

    shouldnt be a problem.
  42. Replies
    19
    Views
    1,671

    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.
  43. 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...
  44. Replies
    4
    Views
    576

    high subcooling means overcharge, that with high...

    high subcooling means overcharge, that with high superheat means restriction.
    check your txv and driers.
  45. Replies
    13
    Views
    2,009

    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...
  46. Replies
    2
    Views
    546

    thanks

    thanks
  47. Replies
    2
    Views
    546

    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.
  48. Replies
    11
    Views
    2,618

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

    had the same thing happen. reversed the wires on two contactors and done.
  49. Replies
    1
    Views
    871

    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,...
  50. Replies
    5
    Views
    893

    can you supply us with sc, sh, suction and...

    can you supply us with sc, sh, suction and discharge pressures, actual compressor amps, rla. any unloaders and are they electric or pnumatic,
Results 1 to 50 of 153
Page 1 of 4 1 2 3 4
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event