HVAC check valves and solenoid valves

[neglky]

i dont know why you do what you do, but thank you so much

[DrZarkloff]

@neglky Thanks for watching. It's fun for me.

[ErvinPaczok]

Perfect video, this will help me on my Refrigeration controls/ accessories test tomorrow, along with unit 6 of a refrigeration book by Dick Wartz....yes i know odd name, but great for new refrigeration students.

[DrZarkloff]

@ErvinPaczok Thanks for watching.

[More350Power]

Great vid!

[DrZarkloff]

@More350Power Thanks

[pbplyr51]

You and your Videos are GREAT! I really enjoy watching them. You can learn and have fun doing it! thanks for putting in the time to make these for your viewers!

[DrZarkloff]

@pbplyr51 Thanks for the compliment. I'm glad that you've learn from my videos.

[jasonhhh100]

keep the videos coming learned alot from you thanks

[DrZarkloff]

@jasonhhh100 Thanks for watching.

[Dodavis37]

Dr. Z, Thanks for all your videos. You are the starting point of my career. I graduate in may and I watch all your videos I even persuaded my instructors to play your videos in class and they loved them. Keep up the good work.

[DrZarkloff]

@Dodavis37 Thanks for watching. Congrats on getting the education. I wish you the best.

[DrZarkloff]

@Dodavis37 Thanks for the kind words and for watching my videos.

[V8Jagnut]

good vid Dr.Z. 

[DrZarkloff]

@V8Jagnut Thanks

[blissJesus1]

Hey Dr. Z, Appreciate your videos, as always. My boss has an opportunity for a 64 unit hotel, that has Carrier water source heat pump consoles, boiler room, and cooling tower, on roof. This opportunity represents a first for both of us on this type of equipment. I can remember you saying, in one of your videos to newer techs, hospitals, and other like institutions are ideal for the experience factor. do you have any videos on WSHP?

[DrZarkloff]

@blissJesus1 Sorry I don't have anything on water source heat pumps. Just think of the system as sort of like a chiller with a cooling tower. The biggest pain in the ass about taking care of that type of system is having to maintain the cooling tower and the water loop water chemistry and piping. The heat pump is a lot like a swimming pool water heater.

[TandNServices]

Great video just like always.

[DrZarkloff]

@TandNServices Thanks.

[dav1099]

nice video Dr Z,

where are these check valves used, I have never come across one.

5*****

[DrZarkloff]

@dav1099 Check valves are used in heat pumps to regulate the flow of refrigerant in the heat and cool mode.

[keviekev70]

cool magnetic service tool

[DrZarkloff]

@keviekev70 I have about six of them. They help to keep the valves open when I'm recovering gas and evacuating a system.

[heavydiesel]

Hey Dr Z!

I've been planning a solenoid vid and now you've beaten me to it!

Might do it anyway when i get the time :-)

[DrZarkloff]

@heavydiesel You could still do a solenoid video. Maybe you could do a cross section. Besides, I didn't completely tear down the valve.

[heavydiesel]

@DrZarkloff Got a call on thursday and found a solenoid letting by and frosting up, think i'll get a vid of it when its frosty and then take it to bits to see why its leaking and how it works when i go back with the replacment valve :-)

[cdub61208]

I misspelled that. What a zero I am. Disc!

[cdub61208]

Thank doc. Great post. DISK!

[DrZarkloff]

@cdub61208 Editing is essential for me. I try to make it flow as smooth as possible but sometimes, well...