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Type: Posts; User: FrostGiant

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  1. Replies
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    Facility manager is looking into piping...

    Facility manager is looking into piping schematics for it. Water side supply pressure is 35 psi.
    This is the only other air conditioner on this piping circuit. All other units were piped with...
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    Water regulating valve is wide open.

    Water regulating valve is wide open.
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    667

    Wastewater. "Pump and dump"

    Wastewater. "Pump and dump"
  4. Replies
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    667

    This is actually an open loop once-through...

    This is actually an open loop once-through system, not on a cooling tower. But there are isolation valves for draining and chemical cleaning.
    I'll bring a pair of gaskets and pull the ends, see...
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    Condenser Tube Cleaning

    Trane 30-Ton Water Cooled, (2) 15-Ton Shell and Tube Condensers with removable end plates.
    Tubes are dirty, flow was within range but runs high head pressure with only 5F Delta T on the...
  6. I've had to replace the high pressure switch...

    I've had to replace the high pressure switch before on mine. Pull it apart and ohm it out.
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    4-Ton System = 48,000 Btus. 8kw Lights = 8 x...

    4-Ton System = 48,000 Btus.

    8kw Lights = 8 x 3413 = 27, 305 Btu x 0.6 to 0.7 (Factor for HID lights) = 16,383 to 19,113 btu/hr. Unit is possibly oversized? What other equipment is in the room?...
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    613

    The Brute manifold actually has a full 3/8" bore,...

    The Brute manifold actually has a full 3/8" bore, the Titan is the standard 1/4". I find the brute is a bit quicker if pulling a vacuum or charging/recovering from a large system, but can feel a bit...
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    http://www.emersonclimate.com/Documents/FlowContro...

    http://www.emersonclimate.com/Documents/FlowControls/pdf/eevc/msds/EX4-8_Technical_Data.pdf
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    What is the application? Is it possible to use a...

    What is the application? Is it possible to use a water cooled condenser with a water reg. valve in series with the air cooled?
  11. Thread: FLIR C2

    by FrostGiant
    Replies
    4
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    345

    FLIR C2

    Anybody out there tried this yet? I'm thinking about buying one before taking the plunge into the E-Series.
    Looks like a step up from the FLIRone iPhone add-on, compact yet affordable.
    ...
  12. Replies
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    Recover the refrigerant and let it stabilize in...

    Recover the refrigerant and let it stabilize in the cylinder for a couple of hours. Check the saturation temperature versus the tank pressure. Very slowly bleed the air from the vapor port until they...
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    Great deal, I think you outbid me at the last...

    Great deal, I think you outbid me at the last second! But now the PK10 won't open up to the full 2-5/8" ?
  14. Replies
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    There have only been a few occasions where the...

    There have only been a few occasions where the new compressor came with a bag of screws for me.
  15. Replies
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    1,567

    I think the part that I was missing from the...

    I think the part that I was missing from the equation was time. Obviously, if I'm only brazing in a couple of valves or components the torch won't be running for an hour straight, a few minutes here...
  16. Replies
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    1,567

    If it is unsafe to withdraw more than 1/7th of...

    If it is unsafe to withdraw more than 1/7th of the cylinder contents per hour, does that mean with a MC Tank (10 cu.ft) I cannot use a tip that consumes more than 1.42 CFH? And with a B Tank (40...
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    1,567

    What size acetylene tanks are you using with this...

    What size acetylene tanks are you using with this rosebud tip? I'm using a B-tank, should I be concerned with the 1/7th rule if my tank is getting low?
  18. Replies
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    Let me know how you make out in defrost mode.

    Let me know how you make out in defrost mode.
  19. Replies
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    2,720

    What are the part numbers of the products you are...

    What are the part numbers of the products you are working with?
  20. Replies
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    I don't have a tech support number for them, but...

    I don't have a tech support number for them, but try Powermatic in Halifax, they are the local suppier. They may have a contact number for tech support.
  21. Replies
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    Are there any diagnostic codes showing up on the...

    Are there any diagnostic codes showing up on the board? Did you check all the wiring connections on the board, thermostat and air handler to ensure they are all tight?
    If there power bill was $1000,...
  22. I realize this is an old thread now, but.... does...

    I realize this is an old thread now, but.... does anybody have information of the bender used for the 2" stainless? Brand/model etc..?
  23. Thread: Pour foam

    by FrostGiant
    Replies
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    919

    16lb density foam, good lord! Now that would be...

    16lb density foam, good lord! Now that would be some good insulation!
  24. Replies
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    There is a benchtop mounted one designed for...

    There is a benchtop mounted one designed for brake lines, maximum size is 1/2" though, and they cost much more. 3/4" and 7/8" would be nice.
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    Tubing Straightener

    Just came across this the other day. What are your guys thoughts?

    http://www.kwixuk.com
  26. I've ran into this before on a Lennox rooftop....

    I've ran into this before on a Lennox rooftop. The elbow on the discharge cracked and dropped the charge twice. The compressor ran fine, no excessive vibration, secure mounts etc.. We ended up...
  27. Replies
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    I've been using the Fluke 971. If you really want...

    I've been using the Fluke 971. If you really want accuracy and more options, there's the Fluke 975. I doubt you'll be buying 6 of those to keep in the vans, though!
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    I will reinforce the notion that sulphur attacks...

    I will reinforce the notion that sulphur attacks the phosphorous in the Silphos joints. 56% is a great solution for joints in runs, bu not practical on the rest of the system. I've been servicing a...
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    Browning and Gates. Carlisle and Goodyear make a...

    Browning and Gates. Carlisle and Goodyear make a decent belt as well.
  30. Replies
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    Fluke 80PK-8 and 80Pk-10

    Fluke 80PK-8 and 80Pk-10
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    855

    I have rebuilt mine with success, the kit was...

    I have rebuilt mine with success, the kit was around $23. A lot of guys swear by the Appion tool.
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    http://sporlanonline.com/literature-and-educationa...

    http://sporlanonline.com/literature-and-educational-materials/electronic-controls/

    SD-213 SMA-12 – 12 VDC Bipolar Step Motor Actuator
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    The IPT book is actually published in Alberta, I...

    The IPT book is actually published in Alberta, I went to school in New Brunswick. Ask some of the older guys around in the trade they may have one, even the pipe fitters.
    I'm a service tech so I...
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    Swagelok Tube Bending Guide. I bought the book...

    Swagelok Tube Bending Guide. I bought the book and little slide rule, but they also published the info online.
    Also, the book "IPT'S Pipe Trades Training Manual" is an excellent resource. I picked...
  35. Thread: lunch ideas

    by FrostGiant
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    Protein Bars, Sweet Potato Chips, Mixed...

    Protein Bars, Sweet Potato Chips, Mixed Nuts/Flavored Nuts. Very quick and easy, can eat while driving and simple to prepare.
    Have lots of water or ice water available throughout the day. I bring...
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    Heat Gain Calculation - Transformers

    When sizing cooling equipment for a MCC Electrical room is there an accurate way to calculate the heat gain from large transformers.
    Is it as simple as KVA x 3.413 , or are there other factors to...
  37. http://cms.esi.info/Media/productImages/Tour_Ander...

    http://cms.esi.info/Media/productImages/Tour_Andersson_Ltd_STAD_balancing_valve_1.jpg
    Something like this?
  38. Replies
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    http://di3-1.shoppingshadow.com/pi/i.ebayimg.com/0...

    http://di3-1.shoppingshadow.com/pi/i.ebayimg.com/00/$(KGrHqN,!qkFDkQhHZgbBQ-UefyseQ~~_32-450x450-0-0.JPG

    http://ecx.images-amazon.com/images/I/31fbN5jIpfL.jpg
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    Ultrasonic Water Flow Meters

    Does anybody have any recommendations on what a good flow meter is on the market today? What are the price ranges for these?
  40. Replies
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    I came across a company called Turbotec that...

    I came across a company called Turbotec that actually offers titanium/stainless steel coax coils, but haven't found much in terms of capacties, flow rates, dimensions and whatnot. Does anybody have...
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    We usually set the head pressure around 225-235...

    We usually set the head pressure around 225-235 on these systems, they're R-22. If there were ever a loss of water pressure or a restriction in the system causing the head pressure to rise, I'd...
  42. Replies
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    What about brazed plate HXs? The plates are...

    What about brazed plate HXs? The plates are stainless steel but the brazing material is either copper or nickel. The water would still come in contact with the copper so I don't think I'd be any...
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    917

    Cupronickel Condensers

    Does anybody here have experience with cupronickel condensers? How do they hold up in comparison to standard copper for water with moderate to high chlorine content? I checked with my supplier and...
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    As long as it was quiet enough, I have no...

    As long as it was quiet enough, I have no objections. Very sensitive to noise when sleeping. Could always insulate the compressor with acoustic lining?
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    Yes, a basement apartment.

    Yes, a basement apartment.
  46. Replies
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    646

    This is in a apartment so mini split is not an...

    This is in a apartment so mini split is not an option, not allowed to have penetrations through outside wall.
  47. Replies
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    646

    Small capacity window air conditioner

    Any recommendations on a small capacity (<5,000 btu) window air-conditioner. This is for a bedroom so low sound levels are essential. The room is just 100 sq.ft and in a basement.
  48. If you are referring to mini splits, Mitsubishi...

    If you are referring to mini splits, Mitsubishi has just released a system designed for server rooms with a higher sensible heat ratio (80-90%) and rated for continuous operation, even at -40C. It's...
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    I would not be concerned about a minimum suction...

    I would not be concerned about a minimum suction gas temperature as long as there is positive superheat. Oil dilution, flooding and slugging would be more of an issue at that point.
    I've seen low...
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    65F is the maximum recommended suction gas...

    65F is the maximum recommended suction gas temperature for a hermetic compressor in a air-conditioning or high-temp application.
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