Recharging refrigerant - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 


Like Tree1Likes
  • 1 Post By hellosailor
Reply
 
LinkBack Thread Tools
  #1  
Old 03-14-2012
Member
 
Join Date: Nov 2005
Posts: 89
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
Petar is on a distinguished road
Recharging refrigerant

Hi, I have an older (nevr used and never installed) Adler Barbour DCM-12 ColdMachine unit that is running but is not cooling as I believe it needs recharging refrigerant.
I know that new unnits come precharged from the factory but do both parts e.g. Compressor unit and Frezer unit come charged or it is only the Compressor unit that is charged and when couplings are connected and unit started the refrigerant migrates into the freezer unit as well.
The reason for asking is because I'd like to have ir recharged and then test run in my garage before installing on the boat so when I disconnect the couplings and comnnect them again I will I guess lose a bit of refrigerant, and may need toppong up the refrigerant again.
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 03-14-2012
Senior Member
 
Join Date: Sep 2011
Location: Massachusetts
Posts: 132
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 4
mm2187 is on a distinguished road
Re: Recharging refrigerant

I am not sure about how the unit is set up but unless it is compatable with how car refrigerant systems are carged I don't think you will be able to get your hands on the refrigerant you need. Might have to call someone licensed to work on HVAC systems.
__________________
Schock - New York 36
Portsmouth, RI
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 03-14-2012
deniseO30's Avatar
1934 Chickering
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 6,342
Thanks: 52
Thanked 101 Times in 91 Posts
Rep Power: 10
deniseO30 will become famous soon enough deniseO30 will become famous soon enough
Re: Recharging refrigerant

Petar, If you don't know how to use refrigeration tools, gauges, and how systems work. You most likely will not get it right even if you can find the R-12 to charge it. Most of the systems only hold around 5 ozs. Just putting gauges on an off once will loose 3-4 oz in the hoses alone.

You really really need a strong and steady power source also to make sure the compressor works. the "module' is hyper sensitive to low amps and voltage. If it drops under 5 amps it will shut down.

The connections on most Marine unit lines are designed for connect/disconnect but are known to leak if refrigerant oil isn't used to lube the threads.

How to know if it needs refrigerant without guages; Turn it on... listen for hissing/gurgling in the evaporator after about 5-10 mins. if the Evap gets cold, good.. if only part of it gets cold, give it more time. After a half hour or so, if the Evap is still "starved" you may need refrigerant. Warning! Almost all DIYers overcharge units. An overcharged 12volt compressor will shut down also.
Hope this helps!
__________________
Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club. New Website!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

My boat is for sale.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 03-14-2012
hellosailor's Avatar
Senior Member
 
Join Date: Apr 2006
Posts: 10,879
Thanks: 2
Thanked 101 Times in 98 Posts
Rep Power: 10
hellosailor has a spectacular aura about hellosailor has a spectacular aura about
Re: Recharging refrigerant

Petar, i don't know what refrigerant your system uses but it will be stamped on a plate on the compressor. They are all available, although many techs have simply stopped dealing with R-12. With a street price around $50 per pound, even if your system took a full pound of it that would not be a stopper as long as you find a tech who deals with it.

More problematic is the "presealed" approach. IIRC the company evacuates both halves, prefills them, and then applies piercing seals in the connectors. A local tech will probably NOT have the tools to replace those, so it is a question of installing the system, assembling it, and THEN having it tested, evacuated, and refilled if necessary. Or of course you could take it into their shop and have them check it there.

This is not a DIY job, simply because the one-time purchase of a vacuum pump, gauges and pressure manifold set, all will quickly add up to the price of a technician, before you even ask about the legalities and buying the gas and possibly compressor oil.

The simplest way to test for leaks is to buy some bubblesoap. Swab it liberally over all the tubing and connections, see if the system blows bubbles anyplace when you are running it. If it does--that's the leak. There are more sophisticated ways to leak check, but that one is free, reliable, and simple.
deniseO30 likes this.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
What kind of refrigerant??? agrosalmon Gear & Maintenance 5 04-29-2011 09:19 AM
mixing refrigerant mondofromredondo Gear & Maintenance 20 08-30-2009 12:40 PM
Draining refrigerant ?? yohoho Gear & Maintenance 4 04-05-2009 09:36 AM


All times are GMT -4. The time now is 10:09 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.