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HVAC Ductulator 1 Posted by: DrZarkloff
Video duration: 424 seconds Global video hits: 3633 I show how to use a ductulator. Related: drz, ductulator Display Video Comments | Hide Video Comments | Add Comment |
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HVAC LED lights Posted by: DrZarkloff
Video duration: 472 seconds Global video hits: 2171 I review the Spotlight brand of LED lights. You can check them out at: http:www.12vspotligh t.com Related: drz, spotlight, led, lights Display Video Comments | Hide Video Comments | Add Comment Latest comments made on this video:
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HVAC Zerol Ice additive Posted by: DrZarkloff
Video duration: 176 seconds Global video hits: 2803 I show how to install the Zerol Ice additive. Related: zerol, ice, additive, hvac, drz Display Video Comments | Hide Video Comments | Add Comment Latest comments made on this video:
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HVAC intermittent problems 1 Posted by: DrZarkloff
Video duration: 375 seconds Global video hits: 826 I discuss the possible reasons for intermittent problems. Related: drz, intermittent, problems Display Video Comments | Hide Video Comments | Add Comment Latest comments made on this video:
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HVAC Thermal Expansion Valves Posted by: DrZarkloff
Video duration: 826 seconds Global video hits: 14788 Please visit CountryComesToTown www.youtube.com Also Check out DearestBecky www.youtube.com Related: drzarkloff, starkloff, hvac, txv, thermal, expasion, valve Display Video Comments | Hide Video Comments | Add Comment Latest comments made on this video:
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Thank You, DrZarkloff and DearestBecky! Posted by: TheBlueFlamingo
Video duration: 258 seconds Global video hits: 209 Because I made an appearance in one of DearestBecky's videos, she and her husband (DrZarkloff) sent me a package of goodies. Guys, I was honored to be in your video, but thank you! The brownies are amazing! "Life on the Meridian" is a fun, fascinating read. I'll be sure to try the bread and read "InterTerrestrial" soon! Oh, and where I said I'm not sharing with Julie? I was kidding. Maybe. Related: drzarkloff, dearestbecky Display Video Comments | Hide Video Comments | Add Comment Latest comments made on this video:
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HVAC condensate drain cleaning with the Mighty Pump Posted by: DrZarkloff
Video duration: 590 seconds Global video hits: 6774 To purchase and find out more about the Mighty Pump you can check out: www.acdrainpump.com Related: drzarkloff, hvac, condensate, might, pump Display Video Comments | Hide Video Comments | Add Comment Latest comments made on this video:
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HVAC Troubleshooting 1 Posted by: DrZarkloff
Video duration: 524 seconds Global video hits: 39687 This is the first troubleshooting video. Related: drzarkloff, starkloff, hvac, troubleshooting, gauges Display Video Comments | Hide Video Comments | Add Comment Latest comments made on this video:
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HVAC Exhaust Fan Motors 1 Posted by: DrZarkloff
Video duration: 251 seconds Global video hits: 3294 I show a couple of exhaust fan motors. Related: drzarkloff, exhaust, fans, motor Display Video Comments | Hide Video Comments | Add Comment Latest comments made on this video:
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HVAC Pump Down Posted by: DrZarkloff
Video duration: 233 seconds Global video hits: 20985 This video shows how to pump down an air conditioning system and getting it ready to open up the line set for servicing. Related: drzarkloff, starkloff, hvac, pump, down, air, conditioning, nitrogen Display Video Comments | Hide Video Comments | Add Comment Latest comments made on this video:
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Latest comments made on this video:
By: waters65. on 19 Aug 10, 23:56:42
ductulater ; in a sentence . would you like to duct now or i could just duct u later
By: DrZarkloff. on 15 Aug 10, 17:35:24
@orbtaybal Thanks for the info. I'll check to see if any of these programs are downloadable through my htc Droid.
By: orbtaybal. on 15 Aug 10, 14:28:05
If you have an iPhone you can get a series of programs.. HVAC Buddy (superheat/subcooling calc) . PT Buddy (has like 700 refrigerants) HVACDuct (ductalator) I'm new school, card board calculator!? no way! :-D BTW, I work on computer room air conditions so you can see how I'm a techie.
By: ComfortAirCompany. on 10 Aug 10, 03:11:27
@DrZarkloff Well I trust your knowledge over my own, but I've never seen matched units put out over 400cfm per ton. But I guess that why I hate rules of thumb; they always change depending on who I ask. Thanks for the insight, keep the videos coming.
By: co2x3. on 10 Aug 10, 02:51:52
Excellent info Doc Z this clip is why i choose a ductless system yes a 2 ton r410a inverter condensor. whos got time to run ducts in your home when you could go ductless. very good info though keep em coming
By: mithrander013. on 10 Aug 10, 01:32:19
Very good I like it what are you going to do next? You said it the sad thing is that most of them have not learned the basics when it comes to air flow.
By: DrZarkloff. on 09 Aug 10, 23:04:10
@ComfortAirCompany Thanks. It's more like 400 to 450 cfms per ton.
By: DrZarkloff. on 09 Aug 10, 22:55:38
@V8Jagnut Thanks.
By: V8Jagnut. on 09 Aug 10, 13:55:14
cool. interesting.
By: tstatech. on 09 Aug 10, 03:31:30
@tstatech YouTube doesn't work correctly. I was trying to reply to swapfoxgt above this comment labeled as if I was replying to DrZ. I see all sorts of ways I would change YouTube not to just work better but to work correctly. Sorry guys didn't want to go off on a side tangent but come on. Also want to apologize to DrZ for causing him any grief with my original or subsequent comments. DrZ you are on cool tech. I have learned a thing or 2 from your videos. Great videos. keep it up.
By: tstatech. on 09 Aug 10, 03:18:34
@DrZarkloff Yes but typically you should shoot for a maximum .5" water column design static on the blower. Usually unless it is a small simple system you will find that you will go into the grey area between .5" and 1" of water column. Be ware most blowers will stall before you get to 1" water column. ECM motors are making it easier and will compensate for some design error but the same rules apply. They will fail as you approach 1"
By: tstatech. on 09 Aug 10, 03:14:23
@robw1031 The ROT I have heard is to increase the size to the next size when reading a sheet metal ductulator when using flex or ductboard. If you pull flex straight and tight it will perform nearly as well as metal. The ductulator from ACCA has flex, duct board and duct liner.
By: tstatech. on 09 Aug 10, 03:09:35
@ComfortAirCompany I agree, It is my experience that it is a prerequisite to be a installer before you become a service tech. Sadly most installers are little more than box cutters. The guys I learned from 20 years ago are still using rule of thumb to size equipment an ducts. The best installers come full circle from installer to tech and back to installer.
By: tstatech. on 09 Aug 10, 03:03:54
@ComfortAirCompany You can say that again.
By: THEHVACTECH101. on 08 Aug 10, 22:49:59
@tstatech Thanks for clearing that up
By: ComfortAirCompany. on 08 Aug 10, 22:07:35
@DrZarkloff Ya you're doing great. We techs typically only need to know rules of thumb like 300-400 cfms per ton, but designer and installers should learn a lot more. The sad fact is that most of them haven't learned even the basics that you were teaching.
By: eggman9713. on 08 Aug 10, 21:08:36
@DrZarkloff Not for me. Looks like the numbering and whatnot is similar to the large one you showed, with maybe a tad less accuracy. And mine is a slide type, rather than a turning type. Much easier to use when marking duct sizes on plans.
By: Nutintoitbut2doit. on 08 Aug 10, 18:03:11
@DrZarkloff Yes it will help you out in most jobs like replacing a duct or two, it is good to know how to read a ductulator not many techs know how, I like to use duct software that has both J & D in it. But I'm no duct expert, I know enough to be dangerous lol. Keep up the good videos Dr. Z
By: tstatech. on 08 Aug 10, 18:00:22
@THEHVACTECH101 No, this is a common misconception. Friction Rate is not the same as Static Pressure. You are measuring static pressure with your magnehelic gauge or monometer. You can go one step further and measure velocity pressure with your gauge if you have a pitot tube. Static pressure is like that in a balloon. Total pressure = static pressure + velocity pressure Friction rate is a way to assign a scale of resistance per 100' of equivalent feet of duct.
By: tstatech. on 08 Aug 10, 17:53:36
I realized after I reread my comment to you that it sounded like I was bustin your balls. I apologize. I just thought that you gave just enough information for newbies and a lot of oldies to get the wrong idea about duct design. You did you use the word design when you probably should exchange the word design with sizing. It would have been nice if you would have been a good idea to touch on velocity limits that would at least keep the rule of thumb guys closer to the ball park.
By: THEHVACTECH101. on 08 Aug 10, 17:36:47
Is the correct way to find the friction lost of a system is to use a magnehelic gauge????
By: DrZarkloff. on 08 Aug 10, 14:52:40
@MinTrinidad Thanks
By: DrZarkloff. on 08 Aug 10, 14:51:37
@eggman9713 I didn't know they made pocket size. Is it hard to read?
By: DrZarkloff. on 08 Aug 10, 14:51:09
@67tr876 Thanks
By: DrZarkloff. on 08 Aug 10, 14:51:01
@swampfoxgt Every manufacturer has it's own specs.