Search:

Type: Posts; User: sgraefe

Page 1 of 4 1 2 3 4

Search: Search took 0.00 seconds.

  1. Have you looked at the Kel-Tec RFB? It's a 308...

    Have you looked at the Kel-Tec RFB? It's a 308 Bullpup that would work for your purpose. They run about $1800
  2. Replies
    5
    Views
    354

    I personally carry a Kel-Tec P3AT in a...

    I personally carry a Kel-Tec P3AT in a pocketholsters.com holster. I've had it for 5 years.

    They make great concealment holsters for your back pocket, it just looks like you have a wallet in your...
  3. Replies
    3
    Views
    356

    I believe what you are asking about is know as a...

    I believe what you are asking about is know as a De-Coupling Loop arrangement. Where the primary pump/s feed the Chillers and the secondary pumps feed the building load (AHU's, Data Center CRAC's,...
  4. Replies
    31
    Views
    1,460

    Yes, using only 2 legs would give you single...

    Yes, using only 2 legs would give you single phase power, but the concern is weather the motor controller/ mag starter is rated for the increased amperage of the single phase motor. Look at the RLA...
  5. Replies
    19
    Views
    934

    I don't get the chance to do Full Installs that...

    I don't get the chance to do Full Installs that often, but I do a lot of Equipment Change Outs. Most average 6 hours, but that all depends on accessibility and location of equipment.

    I have...
  6. Replies
    24
    Views
    1,130

    I like the Leatherman Surge. It has the...

    I like the Leatherman Surge. It has the replaceable saw/file and screwdrivers. The only downfall is the sheath, has thin strips of leather on the belt loop that will rip. So I've had to order a few...
  7. That looks like an Exhaust Fan. Most likely...

    That looks like an Exhaust Fan. Most likely installed to ventilate the garage. It shouldn't have any noticeable noise or vibration. Most likely the belt is worn, or misaligned. I would think the...
  8. Replies
    128
    Views
    5,638

    I'd recommend that anyone concerned with carrying...

    I'd recommend that anyone concerned with carrying a firearm against their companies policy, should carry a few cans of Wasp Spray. It's more effective than Mace or Pepper Spray. Most spray 20+ feet....
  9. Replies
    56
    Views
    2,980

    Don't give up. Who knows what the issue was with...

    Don't give up. Who knows what the issue was with your boss, he might have had a bad night with his old lady and is venting it out at work today.

    If you liked the place, give him a day and then...
  10. I wouldn't say that it is required, more of a...

    I wouldn't say that it is required, more of a just-in-case measure.

    Most Geothermal systems in the Central Texas area don't have them, but we don't risk any duration in time of temps getting...
  11. Thread: Bugs

    by sgraefe
    Replies
    8
    Views
    465

    I've had luck with putting Moth-Balls into the...

    I've had luck with putting Moth-Balls into the electrical section. It seems to keep all sorts of bugs/pests out of the panel.
  12. Thread: Low humidity

    by sgraefe
    Replies
    8
    Views
    476

    I expect that the increased outdoor temp is...

    I expect that the increased outdoor temp is causing the system to operate for longer periods of time, allowing the system to remove more humidity from the space. I would suspect that the system might...
  13. Replies
    20
    Views
    1,412

    I use a shepherd's hook on the end of a length of...

    I use a shepherd's hook on the end of a length of tubing. Then either run the tubing to a drain or a 5 gallon bucket. Siphoning out the Aux pan may take a bit, but I prefer to not carry a full bucket...
  14. Replies
    6
    Views
    1,545

    I thought that's where the Gas Line gets...

    I thought that's where the Gas Line gets connected too....:whistle:
  15. Replies
    17
    Views
    1,358

    I'm a Liebert fan. If they have the floor space,...

    I'm a Liebert fan. If they have the floor space, install two Liebert DS 10ton systems w/ the iCom Controls. Then you can network them together to automatically Lead/Lag and rotate based on what ever...
  16. If you wanted them all to operate as one, I would...

    If you wanted them all to operate as one, I would just put a control relay on each unit.

    Making/Breaking power from R-W, then control each of those relays by a single controller.

    That would...
  17. Replies
    58
    Views
    4,913

    My first AC job out of the Air Force was with a...

    My first AC job out of the Air Force was with a small residential AC Co. They were great to deal with. Being on call meant that the office phone was rolled to your cell, and you were responsible for...
  18. I would not operate this system until the proper...

    I would not operate this system until the proper repairs are done. Permanent damage could result from this mixing of refrigerant.

    Call a licensed service company to perform the repairs.
  19. Replies
    9
    Views
    1,268

    I have always used a socket to aid in the bearing...

    I have always used a socket to aid in the bearing removal. I just use one slightly smaller than the shaft size.
  20. Sounds like the Aux Heat strips aren't coming on....

    Sounds like the Aux Heat strips aren't coming on. I'd recommend you have a tech out to check it. It could just be something simple.

    As far as the night setback goes, 10°F setback is a lot of temp...
  21. Replies
    7
    Views
    1,269

    I hate to say it, but the T-stat isn't where you...

    I hate to say it, but the T-stat isn't where you are going to get the energy savings. That comes from the SEER rating and proper installation of the equipment. Putting a Nest T-stat or other smart...
  22. Replies
    25
    Views
    2,181

    I've never seen where too much RA was a problem,...

    I've never seen where too much RA was a problem, its always the opposite.

    Not enough RA for a system is like you trying to run a marathon while breathing thru a straw. It can be done, but don't...
  23. Replies
    25
    Views
    2,181

    From my experience, I find that systems need...

    From my experience, I find that systems need 1.3sqft of return air filter surface area per ton of cooling.

    So your 14x24= 336sq inches, there are 144sq inches in 1sqft, so 336/144= 2.333sqft

    A...
  24. Replies
    24
    Views
    1,875

    You might check the Manual to see if the...

    You might check the Manual to see if the manufacture offers a condensate pump option, or if the unit can be piped to drain itself. Most portable units can be retro fitted to use a condensate pump....
  25. Replies
    34
    Views
    2,883

    I used to work for Liebert as a Factory Service...

    I used to work for Liebert as a Factory Service Tech. I'd estimate PM's at 1.5hrs/unit, depending on access and filter change needs.

    DSO70ADAOE1588B (AHU TIED TO A ) TCDV415-A= a 20Ton ICom...
  26. Replies
    1
    Views
    539

    I have seen this issue before due too the...

    I have seen this issue before due too the addition of the Chimneys. Chimneys alter the airflow velosities thru the coil. Look at the static pressure drop across the coil. You will most likely have to...
  27. I don't think it's the equipment that most techs...

    I don't think it's the equipment that most techs have issue with, but the customers that occupy them. I used to work for a small residential co that I typically had trailer park fridays to look...
  28. It looks like the Condensate issue for the...

    It looks like the Condensate issue for the furnace is actualy due too the AC coil above it. The AC condensate is either leaking, or the Suction Line is poorly insulated. May just be a minor repair.
  29. Replies
    14
    Views
    1,616

    Since you didn't list where you live, I have to...

    Since you didn't list where you live, I have to assume that you live in a Nothern Climate. So I would expect that the attic where this condensate drain line is run has gotten below freezing during...
  30. Replies
    9
    Views
    691

    Sounds like the motor bearings are worn, or the...

    Sounds like the motor bearings are worn, or the Capacitor is going bad.

    Time to call in a profesional.
  31. Replies
    7
    Views
    6,833

    I've installed quiet a few, mostly in high...

    I've installed quiet a few, mostly in high efficency equipment. To protect the Control Boards and ICM Moduals. The problem is most are only good for a one time use. So it will protect for the first...
  32. Replies
    7
    Views
    967

    I like the idea of waxing the cond fan blades. ...

    I like the idea of waxing the cond fan blades.

    I'd expect that the unit is in an exposed area, that is getting enough wind to prevent the warm air of the defrosting coil from sticking around in...
  33. Replies
    6
    Views
    813

    You can get T-stat with remote sensors that will...

    You can get T-stat with remote sensors that will average the readings. This will not help if the rooms are over/under cooled.

    I have sold a remote T-stat. It had a base unit that mounted where...
  34. Replies
    2
    Views
    1,236

    It can be done, but I'd recommed that you add...

    It can be done, but I'd recommed that you add backdraft dampers to prevent the off line units from getting air blowing back thru them.
  35. Replies
    4
    Views
    751

    By cycling the unit, do you mean that you are...

    By cycling the unit, do you mean that you are shutting off the compressor at the thermostat, or by killing power to the breaker/disconnect? I've had some scroll compressors that would try to run...
  36. I'd expect that the building/house AC is being...

    I'd expect that the building/house AC is being shut off/back at night. This can cause the increased load in the space, that eventually causes the High Temp Alarms. Check with the Building HVAC guys...
  37. Moving more air per ton means the sizing of the...

    Moving more air per ton means the sizing of the equipment will have to be engineered to handle the increased load of the increased air flow thru the coil and still maintain the 16-20°dT thru the...
  38. Delta T is the temperature differance between the...

    Delta T is the temperature differance between the Return Air and Supply Air Temp. Ideally you should expect a 16-20°dT across the coil. The difference in CRAC units is the fact that they run at...
  39. Replies
    6
    Views
    695

    Funny how they always leave the note on the...

    Funny how they always leave the note on the fridge.. If they left it on the washing machine I wouldn't see if for a few weeks.
  40. Replies
    16
    Views
    4,099

    I really like the DS model units. They have a...

    I really like the DS model units. They have a solid plate that the Comp is mounted on. No fears of the Comp sliding off the rails.
  41. Replies
    16
    Views
    4,099

    Yes, I pull the springs and studs to get the old...

    Yes, I pull the springs and studs to get the old one out, and the new one in. It adds a little time, but I think it makes the changeout go smoother. It also gives me a chance to look at the studs and...
  42. Replies
    16
    Views
    4,099

    I just don't like the idea of having to haul in...

    I just don't like the idea of having to haul in the A-frame, I-beam, and bucket with the straps and chainfall. You still need to wheel in the Comp on a furniture dolly or flat cart. So why not just...
  43. Replies
    16
    Views
    4,099

    I prefer to use a Lift Table to get the...

    I prefer to use a Lift Table to get the compressor in/out. Picked one up at Harbor Freight for a coulple hundred bucks. I use it to remove the New Comp out of my truck, then wheel it into the Data...
  44. Replies
    4
    Views
    1,768

    That would be a 50ton Roof Top Unit or RTU. It...

    That would be a 50ton Roof Top Unit or RTU. It has DX cooling, that is Direct Expansion or simply the Refrigerant cools the air, opposed to a CW unit that has Chilled Water to cool the air.
  45. Replies
    9
    Views
    1,418

    I think the OP is asking for "Which manufacture...

    I think the OP is asking for "Which manufacture should they spec?"

    My thought would be to look at whichever Distributor you have the best repore with. Why pick a piece of equipment just for the...
  46. Replies
    22
    Views
    2,441

    The cause of the water dripping is due to the...

    The cause of the water dripping is due to the reduced air flow velocities thru the coil. Since the Return Air Filter size is smaller than the unit requires, and the Higher Outdoor Ambient Air Temps...
  47. Replies
    3
    Views
    629

    Sounds to me like the T-stat has learned your...

    Sounds to me like the T-stat has learned your house. That is to say, when the stat was first installed it didn't have any trend history to base it's control sequence on. So now that it's been in...
  48. Replies
    14
    Views
    3,519

    +1 to Wahoo's opinion. Nothing worst than a...

    +1 to Wahoo's opinion. Nothing worst than a Saleman trying to do a Service Tech's job. The customer will always end up with buying a new system.
  49. Replies
    7
    Views
    2,583

    The insulation around the pipe has nothing to do...

    The insulation around the pipe has nothing to do with the problem. It is just a convient way of seeing that the indoor coil is freezing up. The ice that is forming on that line actually starts at the...
  50. Replies
    7
    Views
    2,583

    Call in the pros. Just finished up fixing after a...

    Call in the pros. Just finished up fixing after a well meaning home owner tried to service his own system. Cost him a couple hundred extra due to the extra parts that he broke while trying to service...
Results 1 to 50 of 169
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