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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

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Latest comments made on this video:

ductulater ; in a ...
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

@orbtaybal Thanks ...
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.

If you have an ...
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.

@DrZarkloff Well I ...
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.

Excellent info Doc ...
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

Very good I like it ...
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.

@ComfortAirCompany ...
By: DrZarkloff. on 09 Aug 10, 23:04:10
@ComfortAirCompany Thanks. It's more like 400 to 450 cfms per ton.

@V8Jagnut Thanks.
By: DrZarkloff. on 09 Aug 10, 22:55:38
@V8Jagnut Thanks.

cool. interesting.
By: V8Jagnut. on 09 Aug 10, 13:55:14
cool. interesting.

@tstatech YouTube ...
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.

@DrZarkloff Yes but ...
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"

@robw1031 The ROT I ...
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.

@ComfortAirCompany ...
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.

@ComfortAirCompany ...
By: tstatech. on 09 Aug 10, 03:03:54
@ComfortAirCompany You can say that again.

@tstatech Thanks ...
By: THEHVACTECH101. on 08 Aug 10, 22:49:59
@tstatech Thanks for clearing that up

@DrZarkloff Ya ...
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.

@DrZarkloff Not for ...
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.

@DrZarkloff Yes it ...
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

@THEHVACTECH101 No, ...
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.

I realized after I ...
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.

Is the correct way ...
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????

@MinTrinidad Thanks
By: DrZarkloff. on 08 Aug 10, 14:52:40
@MinTrinidad Thanks

@eggman9713 I ...
By: DrZarkloff. on 08 Aug 10, 14:51:37
@eggman9713 I didn't know they made pocket size. Is it hard to read?

@67tr876 Thanks
By: DrZarkloff. on 08 Aug 10, 14:51:09
@67tr876 Thanks

@swampfoxgt Every ...
By: DrZarkloff. on 08 Aug 10, 14:51:01
@swampfoxgt Every manufacturer has it's own specs.

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

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Latest comments made on this video:

@PutSome5tankOnIt ...
By: DrZarkloff. on 04 Sep 10, 22:17:32
@PutSome5tankOnIt Thanks.

I can't disagree ...
By: PutSome5tankOnIt. on 02 Sep 10, 06:39:22
I can't disagree with any of the products you endorse. I'm partial to the Energizer Professional LED head light. The headband has a healthy elastic band that holds up to a lot of sweat and abuse. The truth is: there is no perfect LED light that suits every service technician. You do a wonderful job of testing industry product offerings. You're still the standard that we're judged by...keep up the great work!

@atcherservice1 ...
By: DrZarkloff. on 29 Aug 10, 16:51:08
@atcherservice1 Thanks for letting me know. I'll let spotlight know about the problem you've had.

DR Z I have bought ...
By: atcherservice1. on 29 Aug 10, 06:59:45
DR Z I have bought many of the items you have demonstrated, and pleased, I went to buy the spotlight - "burbs" kit that seemed to have everything but the link wouldnt go to the shopping cart, only paypals main page. I was going to order anther brand, got sptlgts other kit and pay 4 the additional items in the burbs kit. i know this is not of your doing, just showing us a new product, but let Spotling know the site has issues, also the referral page I listed ur name the link was bad thnks again

@scottphys That ...
By: DrZarkloff. on 27 Aug 10, 20:36:59
@scottphys That sounds like a great idea.

@China2West Thanks ...
By: DrZarkloff. on 27 Aug 10, 20:36:35
@China2West Thanks for watching.

Dr. Z- Why not glue ...
By: scottphys. on 27 Aug 10, 03:25:27
Dr. Z- Why not glue a magnet to the bottom of the stand. If you're around anything metal that should hold it.

Great review DrZ ( ...
By: China2West. on 27 Aug 10, 02:53:05
Great review DrZ (liking the intro!). I've ben using a 12v spotlight for months now, never leave home without it. Battery life is great!

Great review DrZ ( ...
By: China2West. on 27 Aug 10, 02:52:35
Great review DrZ (liking the intro!). I've ben using a 12v spotlight for months now, never leave home without it. Battery life is great!

Great review DrZ ( ...
By: China2West. on 27 Aug 10, 02:52:25
Great review DrZ (liking the intro!). I've ben using a 12v spotlight for months now, never leave home without it. Battery life is great!

Great review DrZ ( ...
By: China2West. on 27 Aug 10, 02:52:16
Great review DrZ (liking the intro!). I've ben using a 12v spotlight for month now, never leave home without it. Battery life is great!

thanks i entered a ...
By: IIDUMPLINNII. on 26 Aug 10, 03:01:35
thanks i entered a contest and won some free ones that is great

@IIDUMPLINNII Yes. ...
By: DrZarkloff. on 26 Aug 10, 00:37:51
@IIDUMPLINNII Yes. I put the web site address in the description.

Respond to this ...
By: DrZarkloff. on 26 Aug 10, 00:36:40
Respond to this video...

@streetbikedave ...
By: DrZarkloff. on 26 Aug 10, 00:36:37
@streetbikedave Thanks for watching.

@Nutintoitbut2doit ...
By: DrZarkloff. on 26 Aug 10, 00:36:08
@Nutintoitbut2doit Thanks

@Bocist Thanks
By: DrZarkloff. on 26 Aug 10, 00:36:00
@Bocist Thanks

@fyescas777 We just ...
By: DrZarkloff. on 26 Aug 10, 00:35:49
@fyescas777 We just made it look like I did. Dry wall is cheap.

@tstatech cool
By: DrZarkloff. on 26 Aug 10, 00:35:15
@tstatech cool

@achzdck I feel ...
By: DrZarkloff. on 26 Aug 10, 00:34:50
@achzdck I feel your pain.

@co2x3 lol. you ...
By: DrZarkloff. on 26 Aug 10, 00:34:01
@co2x3 lol. you never know

that is great . do ...
By: IIDUMPLINNII. on 24 Aug 10, 10:58:01
that is great . do you have a website link for spotlight.

Hi Doc Z good clip ...
By: co2x3. on 24 Aug 10, 02:47:08
Hi Doc Z good clip I going to get led implants in my forehead choice colors batteries recharge with solar cell implants on the scalp can wait no more flashlites

Small piece of ...
By: achzdck. on 23 Aug 10, 19:51:55
Small piece of sheetrock - I had a buddy put his foot through his brothers 11' ceiling in the last 5 minutes of a change out..SON OF _______!!! I got a headband LED and rechargeable batteries .Hands free for the semi-blind

Very cool. I'll be ...
By: tstatech. on 23 Aug 10, 18:54:21
Very cool. I'll be checking those out.

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

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Latest comments made on this video:

@thisisnotyours1 ...
By: DrZarkloff. on 04 Sep 10, 22:30:37
@thisisnotyours1 It's an oil additive to keep thinks lubricated. It does not correct a refrigerant charge.

I've never seen or ...
By: thisisnotyours1. on 02 Sep 10, 04:42:58
I've never seen or use this Zerol Ice additive. Does it works as a lubricant on the reversing valve, or is it an emergency add for low charge? Thank you.

@stumbo2w Thanks. I ...
By: DrZarkloff. on 31 Aug 10, 23:36:35
@stumbo2w Thanks. I usually work on them in the morning before I wake up.

I love working on ...
By: stumbo2w. on 30 Aug 10, 02:14:02
I love working on those BARD units, so easy.

@MrTERRYD55 That ...
By: DrZarkloff. on 16 Aug 10, 02:20:33
@MrTERRYD55 That sucks dude. I'll try to remember to make a video about it.

@DrZarkloff You ...
By: hackfreehvac. on 15 Aug 10, 23:46:17
@DrZarkloff You got that right DrZ! I can not see myself, at 40 yrs old, going back out on rooftops all day, or in attics or all those scary rooftops! I need to get teh word out at work that I do "side work" so I can make the extra $ for other things.

PlEASE DO A VIDEO ...
By: MrTERRYD55. on 15 Aug 10, 19:46:43
PlEASE DO A VIDEO ON THREE PHASE CONDENSER SYSTEM.HAD A SERVICE CALL ON FRIDAY ABOUT ONE PRESSURES NEVER READ ANY PRESSURES.THE GUY THAT INSATLLED THE UNIT WAS NOT FAMILIAR ABOUT THE UNIT COMPRESSOR RUNIING BACKWARD OR RUNNING ROUGH.ALL - N- ALL HE DID NOT SWITCH THE 2 LEGS ( wiress) around.Now the compressor will need to be replace.Bare in mind the unit is 1 week old.

@hackfreehvac ...
By: DrZarkloff. on 15 Aug 10, 16:54:04
@hackfreehvac Working in-house won't make you rich but it does have it's advantages. I look forward to seeing you vids.

@DrZarkloff Good ...
By: hackfreehvac. on 14 Aug 10, 06:40:21
@DrZarkloff Good deal bro. I've started to add some new stuff. I got some random video clips I've made over the past few months. I work "in house" like you do now. It's a nice break. But pays less though. But at 40, I am done crawling huge roofs and hot attics! I'm trying to find the video clips I made of the cool zone valve actuators for our 4 pipe chiller/boiler system. I was going to make some cool new videos. Hope I didn't delete those.

@steburton The line ...
By: DrZarkloff. on 05 Aug 10, 23:07:20
@steburton The line voltage to this air conditioner is 208/1, so you'll get a slightly higher amp draw than if it were 240/1.

@autobarry I will.
By: DrZarkloff. on 05 Aug 10, 23:05:29
@autobarry I will.

@hackfreehvac Hello ...
By: DrZarkloff. on 05 Aug 10, 21:02:15
@hackfreehvac Hello. I hope to see more of your videos soon. I like to give every product a review. I check out this stuff because one of my viewers asked me to.

Hey Dr Z. Long ...
By: hackfreehvac. on 03 Aug 10, 02:16:42
Hey Dr Z. Long time no talk. LOL! I was wondering who talked you into trying the Snake Oil? LOL! Seriously that's what we called it (funny that someone else already said "snake oil" here). I was surprised NuCalgon was behind this stuff. Only 4 ounces of that can is the oil. I have a hard time believing that 4 ounces could be dispersed throughout a system with a massive amount of surface area. OK, I'm now towards the end of your video and realize why you are trying the stuff. :-)

If you get a chance ...
By: autobarry. on 03 Aug 10, 01:36:31
If you get a chance please give us an update in a couple of weeks, to see how it has performed. Have you thought about getting a data logger and getting run data for a week or so before and then again for a couple of weeks after installation to see if you actually show a savings.

@AaronsAuto I work ...
By: DrZarkloff. on 02 Aug 10, 23:15:54
@AaronsAuto I work for the school board. There's no money insentive for me to replace the reversing valve. If it sticks later down the road then I'll replace it and make sure that I make an updated video.

@steburton I'm ...
By: DrZarkloff. on 02 Aug 10, 23:14:10
@steburton I'm going to check back on the compressor tomorrow to see how it's doing. I'm thinking that the amp draw was a bit high because of the high heat load at the time.

@acechoice45 That ...
By: DrZarkloff. on 02 Aug 10, 23:12:59
@acechoice45 That is so common. Sorry to hear that.

Dr Z i replace a ...
By: acechoice45. on 02 Aug 10, 11:59:45
Dr Z i replace a compressor on a old trane heat pump just to have RV stuck in Heating mode that was a long day !!!!!!!

Did you test the ...
By: steburton. on 02 Aug 10, 10:00:55
Did you test the run capasitor on this system? Seems like the amp draw is pretty high. If the cap is ok, then I wonder about the condition of the compressor.

@DrZarkloff ok
By: Nutintoitbut2doit. on 02 Aug 10, 03:32:50
@DrZarkloff ok

I don't know about ...
By: AaronsAuto. on 02 Aug 10, 02:03:31
I don't know about you, but I make a lot more replacing a reversing valve than I would selling snake oil.

@ibunregistered ...
By: DrZarkloff. on 02 Aug 10, 01:02:57
@ibunregistered Yikes!

You are starting to ...
By: ibunregistered. on 01 Aug 10, 22:56:53
You are starting to look like a snake oil salesman.

@myhero70 The ...
By: DrZarkloff. on 01 Aug 10, 20:42:26
@myhero70 The fluctuation was probably due to my multimeter being a true RMS.

@Ode2Pops Thanks. ...
By: DrZarkloff. on 01 Aug 10, 20:40:06
@Ode2Pops Thanks. I'll keep everyone posted to the success.

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

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Latest comments made on this video:

@DrZarkloff Yeah, ...
By: heavydiesel. on 04 Sep 10, 21:16:00
@DrZarkloff Yeah, the run cap checked out ok so i put a new motor and new capacitor on it.

@itscool1968 You're ...
By: DrZarkloff. on 04 Sep 10, 20:50:11
@itscool1968 You're no fun. lol

@tlewis7777 Yep. ...
By: DrZarkloff. on 04 Sep 10, 20:49:51
@tlewis7777 Yep. Technical taps are one of the more technical parts of the job.

@itscool1968 It ...
By: DrZarkloff. on 04 Sep 10, 20:48:55
@itscool1968 It wasn't my lawn mower. I have an electric.

@Aussie50 Thanks. ...
By: DrZarkloff. on 04 Sep 10, 20:48:21
@Aussie50 Thanks. lol

@IChoseTheRedPill ...
By: DrZarkloff. on 04 Sep 10, 20:47:57
@IChoseTheRedPill At least you know what's happening. You could replace the oil sump heater and see it that fixes it.

@V8Jagnut Thanks. ...
By: DrZarkloff. on 04 Sep 10, 20:47:09
@V8Jagnut Thanks. I've been know to kick compressors, too.

@Bocist Thanks
By: DrZarkloff. on 04 Sep 10, 20:46:15
@Bocist Thanks

@fyescas777 I hate ...
By: DrZarkloff. on 04 Sep 10, 20:46:05
@fyescas777 I hate it when the air conditioner is working when I get there. lol

@heavydiesel That ...
By: DrZarkloff. on 04 Sep 10, 20:45:24
@heavydiesel That sounds like a bad run capacitor or bearings.

@tstatech A data ...
By: DrZarkloff. on 04 Sep 10, 20:44:10
@tstatech A data logger would be a nice tool to have.

@achzdck lol
By: DrZarkloff. on 04 Sep 10, 20:43:02
@achzdck lol

@Tyrone7994 Thanks ...
By: DrZarkloff. on 04 Sep 10, 20:42:50
@Tyrone7994 Thanks for watching.

@co2x3 Sounds like ...
By: DrZarkloff. on 04 Sep 10, 20:42:41
@co2x3 Sounds like a problem with the board keeping the reversing valve energised.

@IndieBraah I ...
By: DrZarkloff. on 04 Sep 10, 20:41:10
@IndieBraah I always discharge the caps before handling them.

@tony5996e lol
By: DrZarkloff. on 04 Sep 10, 20:39:39
@tony5996e lol

@clunkerboy1 lol.
By: DrZarkloff. on 04 Sep 10, 20:39:31
@clunkerboy1 lol.

@plaebslayer Thanks ...
By: DrZarkloff. on 04 Sep 10, 20:38:48
@plaebslayer Thanks.

You're right your ...
By: plaebslayer. on 04 Sep 10, 06:36:18
You're right your niece is beautiful... :P another good video, it's amazing what a good knock can do.

wow very pretty ...
By: clunkerboy1. on 02 Sep 10, 12:49:07
wow very pretty lady ....lol

i am falling in ...
By: tony5996e. on 02 Sep 10, 02:55:25
i am falling in love w/ your nice

Doc, I have to bust ...
By: IndieBraah. on 02 Sep 10, 02:25:34
Doc, I have to bust you also ! Double whammy ! LOL..Shouldn't poke and tug on run capacitors with your bare hands. Not safe and could be very unforgiving. I know techs that have been knocked on their butts touching them, when not being discharged after the disconnect was already off.

Hey Doc whats under ...
By: co2x3. on 02 Sep 10, 02:02:35
Hey Doc whats under the turkey? black object yes good info the ice cube looks partially frozen. trol temp zone board can be very crazy. running ac then heat mode on its own.

Excellent video. ...
By: Tyrone7994. on 01 Sep 10, 23:12:45
Excellent video. Good information.

I prefer a 16 lb ...
By: achzdck. on 01 Sep 10, 22:13:36
I prefer a 16 lb sledge.Then I can sell a whole new outfit.............

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:

@rossyedua Thanks ...
By: DrZarkloff. on 04 Sep 10, 20:50:45
@rossyedua Thanks for watching.

Thanks for been a ...
By: rossyedua. on 04 Sep 10, 03:26:44
Thanks for been a good teacher god bless you sir

@thisisnotyours1 ...
By: DrZarkloff. on 15 Aug 10, 16:56:28
@thisisnotyours1 It's a safety device. It equalizes the pressures between the high and low sides if the pressure builds up too much and when the system shuts down.

DrZarkloff, what ...
By: thisisnotyours1. on 14 Aug 10, 08:06:17
DrZarkloff, what purpose does the equalize line served? why do we need it and how does it works? Thank you.

@54433001 Not at ...
By: DrZarkloff. on 09 Aug 10, 23:01:15
@54433001 Not at this time. Thanks.

do you have any ...
By: 54433001. on 09 Aug 10, 03:15:39
do you have any videos on expantion valve problems when to change

@DrZarkloff thank ...
By: 54433001. on 09 Aug 10, 03:11:11
@DrZarkloff thank you

@dianemarie909 Many ...
By: DrZarkloff. on 07 Aug 10, 16:46:38
@dianemarie909 Many times the suction pressure will drop significantly.

how do you know ...
By: dianemarie909. on 07 Aug 10, 10:17:09
how do you know when it stops working learning refrigeration

@blissJesus1 It's ...
By: DrZarkloff. on 05 Aug 10, 20:22:19
@blissJesus1 It's best to just personal message me through youtube.

Dr. Z, How do ...
By: blissJesus1. on 05 Aug 10, 09:16:18
Dr. Z, How do I contact your personal message

@mralansi1 Thanks ...
By: DrZarkloff. on 03 Jun 10, 22:14:37
@mralansi1 Thanks for watching.

@mralansi1 Thanks ...
By: DrZarkloff. on 03 Jun 10, 22:07:15
@mralansi1 Thanks for watching.

sir I have waited ...
By: mralansi1. on 03 Jun 10, 18:13:43
sir I have waited for long time to have a master in hvacr . u r the best I THANK YOU SIR MR.ALANSI

hi dr zarkloff. i ...
By: nick198101. on 17 May 10, 08:40:12
hi dr zarkloff. i have bit trouble abt how to re gas INVERTER A/C unit. could u pls produce a video for it .. cheers

@jayswal1001 I ...
By: DrZarkloff. on 09 May 10, 11:23:49
@jayswal1001 I don't have a 3-d model laying around. There might be one somewhere on the internet.

can you send me a 3 ...
By: jayswal1001. on 08 May 10, 17:58:57
can you send me a 3-d model

Hay how do you ...
By: whyms1. on 30 Apr 10, 04:54:05
Hay how do you service a walk -in cooler

@jimwillfixit27 ...
By: DrZarkloff. on 18 Apr 10, 01:00:42
@jimwillfixit27 There are times when the expansion valve body needs to be replaced. One of the reasons is if you're retrofitting a system with a different refrigerant or if you can't buy new parts for the old body.

hi ....why would ...
By: jimwillfixit27. on 17 Apr 10, 14:02:57
hi ....why would you unsolder a full expansion valve if faulty,when all the internal parts and the power head can be changed,or are you talking about an first install.........thanks

@nick198101 I have ...
By: DrZarkloff. on 12 Apr 10, 21:36:30
@nick198101 I have a video up right now that shows how to superheat in a charge using the Fieldpiece HVAC Guide.

hi could u pls make ...
By: nick198101. on 10 Apr 10, 08:14:21
hi could u pls make vieo for hw to re gas sys with using super heat. im sooo confuse with that, cheers

@salimnanhack It ...
By: DrZarkloff. on 29 Mar 10, 21:05:04
@salimnanhack It might be necessary to replace an expansion valve if the powerhead has gone bad if it can't be removed from the TXV body.

when and why do ...
By: salimnanhack. on 29 Mar 10, 17:00:33
when and why do change an expasion valve

is there a reason ...
By: skittlesmonkey. on 17 Feb 10, 00:49:43
is there a reason there use an expansion valve instead of something like a little turbine to harness the energy of the moment from high pressure to low, or is it just to make the mechanism simpler?

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

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Latest comments made on this video:

It was fun!
By: TheBlueFlamingo. on 24 Oct 09, 21:53:44
It was fun!

What they gave me? ...
By: TheBlueFlamingo. on 24 Oct 09, 21:53:20
What they gave me? Yeah, it was. I did it for fun. They didn't have to give me anything. They're just super nice that way.

that was a great ...
By: dagocleo. on 22 Oct 09, 18:29:24
that was a great collab and you are a lucky guy !!! take care !!!

Over the top!
By: mehquig. on 22 Oct 09, 09:17:26
Over the top!

Whenever DC is done ...
By: TheBlueFlamingo. on 18 Oct 09, 19:16:47
Whenever DC is done and back for good (haven't seen his video yet, maybe he is back) I want to do a big collab project that will involve lots of people. I'm waiting for him because I've been promising forever I'd do something with him. I'd love to have you in it, too. Bag o' Crap... I really hope to have it out next weekend. I'm sorry it's taken so long. I think I'll stop doing contests as something always gets in the way of sending out the prizes. But, you will get it!

Actually, they go ...
By: TheBlueFlamingo. on 18 Oct 09, 19:14:16
Actually, they go very well with coffee!

I do when the ...
By: TheBlueFlamingo. on 18 Oct 09, 19:13:48
I do when the goodies are so yummy!

Thanks!
By: TheBlueFlamingo. on 18 Oct 09, 19:13:11
Thanks!

Helloooo there Oh ...
By: tweetnes. on 18 Oct 09, 18:02:25
Helloooo there Oh that was sooo cool. I want to do a video with them LOL Hummm where is my bag "O" crap? :) Whatttt!!! Love ya BIG HUGS

Oooo... Where is ...
By: kismet0717. on 18 Oct 09, 13:57:59
Oooo... Where is the milk? HEHEHEHE

I did not know you ...
By: Beachmama57. on 18 Oct 09, 12:16:05
I did not know you had such a sweet tooth! You're a kid at heart!

Great video, Thank ...
By: sunsetlover. on 18 Oct 09, 03:20:44
Great video, Thank you!

I'm glad you guys ...
By: TheBlueFlamingo. on 17 Oct 09, 22:45:08
I'm glad you guys got to meet, too. You're all nice people! Hugs ya!

All right. Thanks ...
By: TheBlueFlamingo. on 17 Oct 09, 22:43:40
All right. Thanks for letting me know. Take care Des!

Agreed!
By: TheBlueFlamingo. on 17 Oct 09, 22:43:11
Agreed!

It was. They're ...
By: TheBlueFlamingo. on 17 Oct 09, 22:42:54
It was. They're such nice people!

It was! Such nice ...
By: TheBlueFlamingo. on 17 Oct 09, 22:41:44
It was! Such nice people. How have you been?

I know. Becky said ...
By: TheBlueFlamingo. on 17 Oct 09, 22:41:22
I know. Becky said they were sending something, but I wasn't expecting this much!

Oh, I'll be sharing ...
By: TheBlueFlamingo. on 17 Oct 09, 22:40:43
Oh, I'll be sharing with Julie. I let her have a brownie already and we're going to cut into the banana bread after supper tonight. From what I've been hearing from South Tube people, it's really good!

You got to meet ...
By: TheBlueFlamingo. on 17 Oct 09, 22:39:33
You got to meet them and they got to meet you, so you're all lucky, too!

Oh, you're welcome, ...
By: TheBlueFlamingo. on 17 Oct 09, 22:37:49
Oh, you're welcome, too. Looking forward to reading the other book!

We'll have to cut ...
By: TheBlueFlamingo. on 17 Oct 09, 22:36:41
We'll have to cut into it after supper. I love banana bread! Wish I could have been at South Tube to meet them. And you and Papi, of course.

Ugh? You don't ...
By: TheBlueFlamingo. on 17 Oct 09, 22:35:40
Ugh? You don't like brownies? Or are you still sicky-poo? Been thinking about you and your family.

I'm so glad I met ...
By: imperceptibleme. on 17 Oct 09, 22:32:18
I'm so glad I met Becky and her husband. Such nice people! Hugs Adrian. Great gifts! Yummo!

Dude, Please ...
By: desdays. on 17 Oct 09, 21:15:34
Dude, Please forgive me, I am going to unsubscribe for a while. The issue is only that real life is so demanding. Will be back again. Warmest regards Des

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

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Latest comments made on this video:

@acdrainpump Cool. ...
By: DrZarkloff. on 04 Sep 10, 22:22:52
@acdrainpump Cool. Everyone wants to try out mine. They're hooked once they do.

Mighty Pump is ...
By: acdrainpump. on 02 Sep 10, 13:09:02
Mighty Pump is becoming the tool of choice for clearing out air conditioner drain lines.

@tstatech lol. It ...
By: DrZarkloff. on 08 Aug 10, 14:53:49
@tstatech lol. It seems like the stuff to keep in the work truck never ends.

That was ...
By: tstatech. on 08 Aug 10, 03:55:20
That was pornographic. just kidding. Looks like a good product. Thanks DrZ. Shoot now I will need to find more room in the van.

@AaronsAuto Thanks ...
By: DrZarkloff. on 02 Aug 10, 23:21:45
@AaronsAuto Thanks for watching. I really like mine, too.

@AaronsAuto Glad ...
By: acdrainpump. on 02 Aug 10, 14:19:03
@AaronsAuto Glad to hear that. All we are hearing are positive results on the Mighty Pump. We are very pleased with the responses we are getting. Please help spread the word about Mighty Pump.

I finally got mine ...
By: AaronsAuto. on 02 Aug 10, 02:06:38
I finally got mine last week and so far it's 3 for 3 on cleaning out clogged drains. Big time saver! Thanks Doc!

I finally got mine ...
By: AaronsAuto. on 02 Aug 10, 02:06:11
I finally got mine last week and so far it's 3 for 3 on cleaning out clogged drains. Big time saver! Thanks Doc!

@woodstockslim ...
By: DrZarkloff. on 17 Jul 10, 19:28:33
@woodstockslim Thanks

lol...:) nice ...
By: woodstockslim. on 08 Jul 10, 14:34:42
lol...:) nice wiggs

I would like to ...
By: bignlng9. on 17 Jun 10, 02:20:36
I would like to comment and advise techs using this pump on the outside of the home and not checking indoors in the closet or attic. If there is a tee after the trap- it won't clear the trap. You'll have to cap that tee first. The evaporator pan may have slime in it too which needs flushing out and treated. I find the condensate tablets used after cleaning work very well in slowing the growth in the pipe. I use them on every job. I have this pump and it is a great product.

Now thats a great ...
By: ehmr34gtr. on 13 May 10, 17:11:40
Now thats a great tool!

please put the dogs ...
By: freewoodencrosses. on 17 Apr 10, 11:03:22
please put the dogs away. Thanks for the video though

@stat310 I'll have ...
By: DrZarkloff. on 01 Apr 10, 20:19:51
@stat310 I'll have to check that out.

haha.. kewl vid Dr. ...
By: death2opposeme. on 31 Mar 10, 04:30:43
haha.. kewl vid Dr. Z

The Diversitech ...
By: stat310. on 31 Mar 10, 00:32:43
The Diversitech pump is a condensate pump that stays connected in the system, I think it is completely different from the pump the doctor is using. Great job Dr.Z on this video, the pump looks like a great tool to have available on the truck especially this summer..

diveristech has a ...
By: roces1289. on 30 Mar 10, 22:10:35
diveristech has a new pump available that actually can tell how much blockage is in your line and ramps up the pressure accordingly, its electronic and not float operated. its a very neat pump

@winkhvac A semi ...
By: DrZarkloff. on 29 Mar 10, 22:22:13
@winkhvac A semi backed into the rear end of my old work truck so they gave me a new one.

new truck jim
By: winkhvac. on 29 Mar 10, 02:17:27
new truck jim

@pageerror Great ...
By: DrZarkloff. on 28 Mar 10, 15:51:19
@pageerror Great idea. You can visit the web site that I have in the description over to the side and email the company.

@DrZarkloff Thanks ...
By: pageerror. on 28 Mar 10, 15:33:25
@DrZarkloff Thanks for ur reply! The reason I asked I sell lots of the traditonal vaccum pumps in a wholesale level for outisde the US market and I wondered if I could offer the "Mighty Pump" as a replacement since it is much cheaper @ $69.95 to my wholesale customers.

@freonfreak65 Yes. ...
By: DrZarkloff. on 28 Mar 10, 13:04:02
@freonfreak65 Yes. A semi backed into the rear end of my old truck.

@pageerror Probably ...
By: DrZarkloff. on 28 Mar 10, 13:03:33
@pageerror Probably not.

@bwd111 lol
By: DrZarkloff. on 28 Mar 10, 13:03:06
@bwd111 lol

@SNL0907 It's only ...
By: DrZarkloff. on 28 Mar 10, 13:02:29
@SNL0907 It's only $69.95.

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

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Latest comments made on this video:

@luxaire350 It ...
By: DrZarkloff. on 04 Sep 10, 22:11:01
@luxaire350 It sounds like your compressor valve reeds are bad. I'd replace the compressor.

@pinkfeet970 Sorry, ...
By: DrZarkloff. on 04 Sep 10, 22:09:48
@pinkfeet970 Sorry, I don't have any furnace videos.

I 'm RVDA certified ...
By: pinkfeet970. on 03 Sep 10, 00:43:59
I 'm RVDA certified, A local heating and air company charged my fatherin law $800.00 to fix his furnace. It hasn't worked since the guy brought his cowoker or buddy came out several times according to my father in law. I'm comin in on the back side of this with my experience I find the ignition board 2 be bad the diode in what we tech's call a DSI board Moast of the techs in my field have a Fenwell board tester is there such thing in the HVAC world or where can i see ur video for that? thanks

Dr Z I have a ...
By: luxaire350. on 02 Sep 10, 14:26:08
Dr Z I have a problem with a unit my Delta T is around 10 ..my suction pressure is 85 psi my head is around 210... Ive cleaned both coil's ,,,evacuated and re charged ,,,still no good ..pumped down to 1 psi to see if valves are bad could it be the filter dryer ?

ok thanks
By: seabass3211. on 20 Aug 10, 01:17:32
ok thanks

I sorry, but this ...
By: newstart49. on 19 Aug 10, 21:45:19
I sorry, but this is just unprofessionally done. I've enjoyed the more informative ones.

@seabass3211 ...
By: DrZarkloff. on 19 Aug 10, 20:55:34
@seabass3211 Congrats on making the decision to make HVAC your career. Your instructor will probably tell you what hand tools you'll need.

Thanks for your ...
By: seabass3211. on 18 Aug 10, 12:23:06
Thanks for your vids, I'm starting school for HVAC this month and I'm 35. Any word of advice you can give and what tool I should really need. Thanks again man.

There is much worse ...
By: ciabrenn. on 13 Aug 10, 00:47:59
There is much worse things she could do!!!! Thanks!!!

these people are ...
By: cigamlooc. on 10 Aug 10, 01:34:00
these people are just crazy and love to take up my time with putting on their little skits wait until his wife gets on she thinks she is a comedian and I have not figured him out yet and won't because no more viewing you!!

DO NOT flip an A/C ...
By: tenbadhabbits. on 10 Aug 10, 00:54:04
DO NOT flip an A/C breaker on if it is tripped! You should call a licensed HVAC technician to trouble shoot the problem. When a breaker trips it is for a reason. Find the reason it tripped before re-tripping the breaker. For example, if a grounded compressor tripped the breaker, then you could blow the freon charge by re-tripping it.

You know how there ...
By: fedders4. on 26 Jul 10, 01:07:11
You know how there is three wires in a 115volt power cord, is it true that you can split the hot wire in two, to make two hot wire conections to a 230volt DC inverter air conditioner? will that work or do i? still have to call the elecrical guy?( A/C Unit is a 9,000 BTU Ductless mini split heat pump with a DC inverter compressor and it only draws 15 amps and uses 230volts)

@DrZarkloff too ...
By: jayguy173. on 17 Jul 10, 22:04:15
@DrZarkloff too werid for me

big girl
By: jayguy173. on 17 Jul 10, 22:03:20
big girl

@deyenak1 If you ...
By: DrZarkloff. on 16 Jul 10, 15:58:44
@deyenak1 If you think that she is nutty in this video, you need to check out her channel DearestBecky.

your wife is nutty ...
By: deyenak1. on 16 Jul 10, 04:03:00
your wife is nutty on this video

WTF IS GOING ON AT ...
By: niper99. on 14 Jul 10, 06:13:46
WTF IS GOING ON AT THE END THIS VIDEO!!!!....ANYWAYS REALLY GOOD INFO ON YOUR VIDEO VERY HELPFULL AND VERY WELL EXPLAINED.

@cruz47144 Thanks ...
By: DrZarkloff. on 02 Jul 10, 21:45:01
@cruz47144 Thanks for watching.

Thanks for posting ...
By: cruz47144. on 02 Jul 10, 18:58:47
Thanks for posting your videos. I'm a electrician by trade but have always been fascinated by HVAC. I use to listen to cooltalk online before discovering your videos. Installed my own complete system and I got certified on refrigerants. Saved a ton of money. I'm grateful for learning more. I service my families systems.

@mxdunksdad You ...
By: DrZarkloff. on 22 Jun 10, 23:57:29
@mxdunksdad You really should replace the bad high pressure switch. You might want to clean the coil in your out door unit. It's easy to do. Just turn off the power to the unit and use a hose to clean the coil. Coil cleaner isn't always a necessity unless the coil is really a mess. It is possible for a dirty coil to be why your condensing unit is shutting down on high pressure.

HI DrZ, I have ...
By: mxdunksdad. on 17 Jun 10, 20:02:03
HI DrZ, I have looked at all your videos to try and fix my outside unit a 3.5 ton Ducane split AC. The condenser stopped running ( heat pump ) it was not heating the AC guy came out and snipped the two HIGH pressure wires and tied them together the only way it would come on connect it and the little spring switch wont engage. The problem is the High pressure now overheats and stops cooling I have had three guys out and they cant tell me what to do any advice ? i ran the heat and temp drops to

@vector00234 when ...
By: kolocho7777. on 01 Jun 10, 13:29:45
@vector00234 when checking the HP switch and LP switch, do you have to disconect both wires or only one?

@jrm1559 Thanks for ...
By: DrZarkloff. on 04 May 10, 00:31:41
@jrm1559 Thanks for watching.

Dr. Z is a great ...
By: jrm1559. on 29 Apr 10, 22:19:27
Dr. Z is a great HVAC/R. The problem I had with this video is that it jumped/skipped. I was trying to very closely follow but the video seemed to jump and I may have missed something critical to know. I appreciate Dr. Z.

I was just told by ...
By: djslay34982. on 27 Apr 10, 00:50:45
I was just told by my Instructor to always put the gauges on and check the pressure.

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

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Latest comments made on this video:

@fyescas777 I don't ...
By: DrZarkloff. on 26 May 10, 22:05:59
@fyescas777 I don't work much with ECM motors. Nearly all of the variable speed motors that I work on are three phase and need a frequency drive to operate. I'll keep it in mind when I do have to work on one.

Hey Dr. Z how a ...
By: fyescas777. on 24 May 10, 00:50:34
Hey Dr. Z how a about a video on ECM motors and tools to trouble shoot them??

good tip. keep em ...
By: thereceman. on 02 Apr 10, 23:45:31
good tip. keep em coming

That is good advice ...
By: DrZarkloff. on 06 Feb 10, 01:26:49
That is good advice. I guess that it all depends on who is paying you for the job and what motors you have laying around.

just for good ...
By: talisman227. on 24 Jan 10, 06:38:18
just for good measure...MOUNTING! make sure mounting the new motor won't turn into an over customizing project. If the bolts match too....perfect.

I don't mind " ...
By: chatrkat. on 20 Jan 10, 16:27:22
I don't mind "assembled in Mexico" too much but I despise the motors now coming from China! ...cleverly hidden by the lack of "made in China" on the labels. notice how recent motors don't last as long either? Chinese JUNK!

"son-of-a..." LOL! ...
By: chatrkat. on 20 Jan 10, 16:22:54
"son-of-a..." LOL! good info to share.

LOL, good video doc ...
By: bobbyton80. on 14 Jan 10, 04:47:40
LOL, good video doc. I hate when I drop the motor. You are going to scratch the hell out of your dash board. I hope its not your truck.

Great Videos! Thank ...
By: quimbymicheal. on 13 Jan 10, 18:49:52
Great Videos! Thank you for sharing your knowledge in every aspect of the trade.

Sweet. Yep yep, do ...
By: mikie2501. on 13 Jan 10, 03:18:16
Sweet. Yep yep, do the same here, rpm and amp draw. Can't trust the hp. ratings on the darned things! lol :> Nice job!

Thanks for think ...
By: DrZarkloff. on 12 Jan 10, 23:26:41
Thanks for think about my lack of jams. I really don't mind not having a radio. It gives me time to think.

It's an exhaust fan ...
By: DrZarkloff. on 12 Jan 10, 23:25:12
It's an exhaust fan in a bathroom.

"Fart fans" only ...
By: TGYO. on 12 Jan 10, 16:56:49
"Fart fans" only you could come up with that.

where did that come ...
By: co2x3. on 12 Jan 10, 01:41:00
where did that come out of?

Dr Z whats up with ...
By: co2x3. on 12 Jan 10, 01:35:33
Dr Z whats up with your dash board no radio? you know i got a nice vice you could mount on that work bench dash if interested. hey im not a parts changer monkey but i do change allot of bad components. seperate the real technicians from the coconut crackers.

yer its good.lol
By: V8Jagnut. on 12 Jan 10, 01:20:17
yer its good.lol

np man
By: 67tr876. on 11 Jan 10, 23:32:43
np man

You got it. Thanks.
By: DrZarkloff. on 11 Jan 10, 22:48:18
You got it. Thanks.

One of the motors ...
By: DrZarkloff. on 11 Jan 10, 22:47:59
One of the motors fell on my knee.

I can see why ...
By: DrZarkloff. on 11 Jan 10, 22:47:20
I can see why people would want to upgrade from the construction grade fart fans that come with their home. The school board is so picky. They just want it to work.

I did neglect to ...
By: DrZarkloff. on 11 Jan 10, 22:45:47
I did neglect to mention the rotation. The rotation on both motors were the same. The information wasn't on the info plate. I had to plug in the new motor to check it out.

The trick is to ...
By: DrZarkloff. on 11 Jan 10, 22:44:32
The trick is to match the amps rather than worrying about the horsepower. That way everything will work out right.

lol. I feel you ...
By: DrZarkloff. on 11 Jan 10, 22:43:04
lol. I feel you pain.

Thanks. People have ...
By: DrZarkloff. on 11 Jan 10, 22:41:11
Thanks. People have been telling me that I shouldn't edit some things out.

Thanks. It's a 1988 ...
By: DrZarkloff. on 11 Jan 10, 22:40:25
Thanks. It's a 1988 and it's seen lots of action.

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

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Latest comments made on this video:

Good video. I ...
By: uvelle. on 22 Aug 10, 01:54:31
Good video. I didn't know you could pump down a system w/o a receiver (king valve).

Gauges are closed ...
By: newstart49. on 19 Aug 10, 21:57:25
Gauges are closed while pumping down. On a heat pump, make sure the system is in cool mode. If their is nothing wrong with the compressor valves, you can close the suction service valve after the pump down is complete. When re-opening the service valves, it's best to open the suction side first. If the system won't pump down- the outdoor unit may not have enough capacity, or the compressor valves are bad.

@1jorgelmartinez ...
By: DrZarkloff. on 19 Aug 10, 20:47:28
@1jorgelmartinez Closed

are your gauges ...
By: 1jorgelmartinez. on 18 Aug 10, 22:14:09
are your gauges open or closed while its pumping down

are your gauges ...
By: 1jorgelmartinez. on 18 Aug 10, 22:11:40
are your gauges open or closed while ts pumping down the condenser

@dracorp1 Yes, you ...
By: DrZarkloff. on 02 Aug 10, 23:17:45
@dracorp1 Yes, you would need to energise the reversing valve. I usually just remove the coil and slide on a test magnet.

If this were a heat ...
By: dracorp1. on 02 Aug 10, 13:41:43
If this were a heat pump with a cooling active RV. Would you have to energize the RV first before depressing the contactor to get it to pump down? I would think otherwise it would be running in heat.

@Straycurrent I've ...
By: DrZarkloff. on 17 Jul 10, 18:24:41
@Straycurrent I've heard them open on systems without a high pressure switch.

Thanks for your ...
By: Straycurrent. on 16 Jul 10, 04:51:19
Thanks for your pump down video. Do you ever run into a problem when a system has a long lineset? Since the system then has more refrigerant than the basic charge that was suited to 15ft, can the charge exceed the capacity of the condenser coil? Do you ever see the compressor internal relief open before the system is down to zero? Thanks for the video.

@meek7190 You'd ...
By: DrZarkloff. on 22 Jun 10, 23:36:02
@meek7190 You'd have to flush out the line set if you plan to use it with a new R410a system or you can just replace the line set.

@magheavenify After ...
By: DrZarkloff. on 22 Jun 10, 23:34:38
@magheavenify After the system has been pumped down you can open up the line set and evaporator for servicing.

tanx for dat video ...
By: magheavenify. on 20 Jun 10, 07:10:32
tanx for dat video ...what about the new unit now ? it has many protection not just low and high pressure switch?? is it safe to disconnect it?? is it safe to compressor?

Drz could you tell ...
By: meek7190. on 18 Jun 10, 05:14:42
Drz could you tell me or would you let me know what to do to hook up a new 401a unit useing exsisting lines on a split unit. Do I have to pull the lines to a vaccume?

@Zahed911 Thanks ...
By: DrZarkloff. on 16 Jun 10, 23:50:56
@Zahed911 Thanks for watching.

wonderful video, ...
By: Zahed911. on 16 Jun 10, 04:40:44
wonderful video, excellent job man!!! it's good to learn this instead of taking too long and doing it a dumb way lol, example is hooking up refrigeration gauge tunes to suction and liquid and putting it into a bucket of water lol thanks man

@Oxfordtrain Now if ...
By: DrZarkloff. on 08 Jun 10, 23:24:42
@Oxfordtrain Now if I only had his money.

haha you know you ...
By: Oxfordtrain. on 08 Jun 10, 22:01:48
haha you know you remind me of a guy his name is Bill Murray

@ab9957 I am ...
By: djslay34982. on 27 May 10, 22:39:11
@ab9957 I am guessing that the low pressure switch did cut out the compressor which is why he had to manually close the contact circuit to pump the system down.

Nice HVAC Pump Down ...
By: hurricane0210. on 25 May 10, 18:06:46
Nice HVAC Pump Down video, you make it look so easy. What would be the next step after you finish working on it and vacuum it? Open up the liquid line (high side) then the suction line (low side) ?

DrZarkloff, what ...
By: bolingbrook2009. on 05 May 10, 17:59:56
DrZarkloff, what percentage to determine the pressure is good. the pressure to high means not enough refrigerant in the compressor?

@MrLastyme You can ...
By: DrZarkloff. on 04 May 10, 00:35:13
@MrLastyme You can usually get away with this practice with R-22 systems. R-410a systems are a bit more finicky.

@sirevil120 To keep ...
By: DrZarkloff. on 04 May 10, 00:33:40
@sirevil120 To keep air from rushing into the system from a vacuum.

Zark i'm not sure I ...
By: sirevil120. on 03 May 10, 03:31:34
Zark i'm not sure I understand why you would put nitrogen in the system to break a vacuum when nitrogen is a non condensable..

Dr Z ... everytime ...
By: MrLastyme. on 30 Apr 10, 01:24:11
Dr Z ... everytime i replaced a condenser i brazed the lines back to the the tubing note the condensers are already precharged i never notrogen bled a system while i was brazing not sure how to do this but i usually braze my lines pump the system up with nitrogen to about 150 psi wait for 20 minutes to see if i have a leak. then i put the system in a vacuum for an hour or so while the system is in a vacuum open the lines up and thats pretty much it ...

@gordy19741974 You ...
By: DrZarkloff. on 29 Apr 10, 20:11:08
@gordy19741974 You are not allowed to vent refrigerant of any kind into the atmosphere even if no one is looking.

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