Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 22-08-2016, 14:22   #16
Moderator
 
a64pilot's Avatar

Cruisers Forum Supporter

Join Date: Oct 2013
Location: Albany Ga.
Boat: Island Packet 38
Posts: 16,529
Re: Copper pipe connections for fridge / freezer / aircon

MAPP looks just like a little propane tank and will burn fine in the same torch, just a yellow bottle and gets much hotter than propane, not oxy acetylene hot, but hot enough for silver solder. I use MAPP even when just soldering plumbing pipes, not needed but it's faster cause it's hotter.


Sent from my iPad Pro using Cruisers Sailing Forum
__________________

__________________
a64pilot is offline   Reply With Quote
Old 22-08-2016, 15:08   #17
Senior Cruiser
 
Sailmonkey's Avatar

Cruisers Forum Supporter

Join Date: Sep 2009
Location: Houston
Boat: '76 Allied Seawind II, 32'
Posts: 5,619
Re: Copper pipe connections for fridge / freezer / aircon

Be forewarned though.....the smell of mapp gas is nauseating.


Sent from my iPhone using Cruisers Sailing Forum
__________________

__________________
Sailmonkey is offline   Reply With Quote
Old 22-08-2016, 15:17   #18
Marine Service Provider
 
SV THIRD DAY's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: La Paz, Mexico
Boat: 1978 Hudson Force 50 Ketch
Posts: 3,578
Re: Copper pipe connections for fridge / freezer / aircon

Quote:
Originally Posted by ErikFinn View Post

That would work fine...
__________________
Rich Boren Goodbye Morro Bay...Hello La Paz, Mexico and the owner of:
Cruise RO Water High Output Water
Technautic CoolBlue Refrigeration
SV THIRD DAY is offline   Reply With Quote
Old 22-08-2016, 19:29   #19
Registered User
 
ErikFinn's Avatar

Join Date: Feb 2011
Location: Malaysia, Thailand
Boat: Beneteau Oceanis 430
Posts: 814
Re: Copper pipe connections for fridge / freezer / aircon

Thanks for replies guys...
how about the filter dryer..?


Quote:
Originally Posted by ErikFinn View Post
Another thought about brazing: I have a fixed critical orifice system (like Rich would call it) with a thin rolled evaporator plate and no filter dryer.

I believe these cheaper systems without a filter are more prone to contamination during any tampering with the closed system than Rich's top of the line Coolblue with a big filter.

Could I add a filter dryer to my system? Or to any similar system for that matter? If yes, where exactly should it go?

(should pull long vacuum and fill gas to about 95 to 100% plate frost after I reckon)
__________________
ErikFinn is online now   Reply With Quote
Old 22-08-2016, 19:31   #20
Marine Service Provider
 
SV THIRD DAY's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: La Paz, Mexico
Boat: 1978 Hudson Force 50 Ketch
Posts: 3,578
Re: Copper pipe connections for fridge / freezer / aircon

Quote:
Originally Posted by ErikFinn View Post
Thanks for replies guys...
how about the filter dryer..?
They just don't add a larger one for cost sake, so you can add a larger filter/drier to your system...its certainly not going to hurt anything.
__________________
Rich Boren Goodbye Morro Bay...Hello La Paz, Mexico and the owner of:
Cruise RO Water High Output Water
Technautic CoolBlue Refrigeration
SV THIRD DAY is offline   Reply With Quote
Old 22-08-2016, 19:38   #21
Registered User
 
ErikFinn's Avatar

Join Date: Feb 2011
Location: Malaysia, Thailand
Boat: Beneteau Oceanis 430
Posts: 814
Re: Copper pipe connections for fridge / freezer / aircon

Quote:
Originally Posted by SV THIRD DAY View Post
They just don't add a larger one for cost sake, so you can add a larger filter/drier to your system...its certainly not going to hurt anything.
When you say they don't add a LARGER one, does that mean that there is already a small one in there that I just can recognize? Or do you mean there is nothing at all? And..But.. filters only cost a few bucks. right?

Where in the closed circuit should I install one for a fco system?
__________________
ErikFinn is online now   Reply With Quote
Old 22-08-2016, 19:42   #22
Marine Service Provider
 
SV THIRD DAY's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: La Paz, Mexico
Boat: 1978 Hudson Force 50 Ketch
Posts: 3,578
Re: Copper pipe connections for fridge / freezer / aircon

All systems have filter/driers and if yours already has one I wouldn't mess with adding another one, you are wasting time/energy in my opinion. Ours is larger because is servers a different purpose as a storage space for refrigerant to wait for the TXV to call for it...you don't need anything like that on a Critical Orifice system.
__________________
Rich Boren Goodbye Morro Bay...Hello La Paz, Mexico and the owner of:
Cruise RO Water High Output Water
Technautic CoolBlue Refrigeration
SV THIRD DAY is offline   Reply With Quote
Old 22-08-2016, 20:00   #23
Registered User

Join Date: Jun 2012
Boat: Rawson 30
Posts: 25
Re: Copper pipe connections for fridge / freezer / aircon

Ive used silfos15. Very light on the flux for refrigeration or can contaminate oil. Can be tricky to get the heat just right. Good to do a practice run on a seperate piece.. If it's turned black your too hot. ..
__________________
boatnerd is offline   Reply With Quote
Old 22-08-2016, 20:07   #24
Registered User
 
ErikFinn's Avatar

Join Date: Feb 2011
Location: Malaysia, Thailand
Boat: Beneteau Oceanis 430
Posts: 814
Re: Copper pipe connections for fridge / freezer / aircon

Quote:
Originally Posted by SV THIRD DAY View Post
All systems have filter/driers and if yours already has one I wouldn't mess with adding another one, you are wasting time/energy in my opinion. Ours is larger because is servers a different purpose as a storage space for refrigerant to wait for the TXV to call for it...you don't need anything like that on a Critical Orifice system.
Oh, for some reason I was under the impression that these cheaper CFO systems do not have filters at all..
In that case my filter must be the finger size copper cylinder looking something like this (I'm not in the boat right so can't take a photo):

RParts.com - Spun Copper Filter-Dryer

I always thought that was something to aid in the condensing pressure/temp.. hehe
__________________
ErikFinn is online now   Reply With Quote
Old 22-08-2016, 20:12   #25
Registered User
 
ErikFinn's Avatar

Join Date: Feb 2011
Location: Malaysia, Thailand
Boat: Beneteau Oceanis 430
Posts: 814
Re: Copper pipe connections for fridge / freezer / aircon

Quote:
Originally Posted by boatnerd View Post
Ive used silfos15. Very light on the flux for refrigeration or can contaminate oil. Can be tricky to get the heat just right. Good to do a practice run on a seperate piece. Acetylene is much easier to control than mapp. If it's turned black your too hot. .
Sounds like you guys are making jewlery.
Thanks for post boatnerd.
I've never done this before and I'd like to do it correct the first time instead of screwing up my system so yea I kinda try to think of it as some kind of a gem...
__________________

__________________
ErikFinn is online now   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
PVC pipe for diesel fill pipe Cestmoi Engines and Propulsion Systems 3 30-07-2016 07:18
Freezer not a real freezer Drift Woods Provisioning: Food & Drink 21 15-03-2016 13:06
Copper pipe for raw water? Warby12 Engines and Propulsion Systems 26 05-08-2015 10:00
Oops, Broken Gas Pipe on Figoboat Fridge in Croatia...any Ideas? monte Plumbing Systems and Fixtures 5 13-08-2013 05:37
Keeping Copper Pipe from Freezing sdowney717 Plumbing Systems and Fixtures 10 13-08-2011 15:22



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 00:39.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.