Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 02-18-2013, 03:22 PM   #1
Newbie
 
Join Date: Feb 2013
Posts: 1
Share |
Default

ductless havc


I want to install a ductless havc unit myself. Can you purchase a unit that is precharged with, and if so from which company?

johnmac is offline   Reply With Quote
Old 02-18-2013, 04:49 PM   #2
747
registered
 
747's Avatar
 
Join Date: Feb 2005
Location: Illinois (kankakee county)
Posts: 1,330
Default

ductless havc


if your talking Mitsubishi heat and cool unit. They are precharged.

747 is offline   Reply With Quote
Old 02-18-2013, 05:33 PM   #3
Newbie
 
Join Date: Feb 2013
Posts: 20
Default

ductless havc


No warranty unless you are a certified HVAC person.
ratflinger is offline   Reply With Quote
Old 02-18-2013, 05:49 PM   #4
Newbie
 
Join Date: Feb 2013
Posts: 12
Default

ductless havc


Quote:
Originally Posted by ratflinger View Post
No warranty unless you are a certified HVAC person.
Not true, depending on brand, many HVAC systems are warrantied regardless of who installed them. To the OP, most of the ones I've seen are already precharged.
GarrettFiveZero is offline   Reply With Quote
Old 02-18-2013, 06:44 PM   #5
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,778
Default

ductless havc


Mini splits come precharged for X length of line set.
beenthere is offline   Reply With Quote
Old 02-18-2013, 06:52 PM   #6
Member
 
Join Date: Jan 2012
Posts: 210
Default

ductless havc


They are pre-charged, but you will need to use a vacuum pump to vacuum the lines of air once everything is connected up. This also allows you to check for leaks, as the vacuum should hold for over an hour once it's pulled down (If you see gauge moving back up, it's time to go back and check your connections) Once the lines are vacuumed down and all air/moisture is removed, you can then open the valves on the outdoor unit and let the refrigerant into the lines and the indoor unit...the system will then be ready for use.

If you want to install the system yourself, you will need to borrow or rent a vacuum pump. You should not need to add any charge to the system. Most mini-splits have enough charge for a 25 foot lineset. A longer lineset will require more refrigerant than what's contained in the outdoor unit's compressor.
av-geek is offline   Reply With Quote
Old 02-18-2013, 10:43 PM   #7
Newbie
 
Join Date: Feb 2013
Posts: 20
Default

ductless havc


Quote:
Originally Posted by GarrettFiveZero View Post
Not true, depending on brand, many HVAC systems are warrantied regardless of who installed them. To the OP, most of the ones I've seen are already precharged.

I should have qualified that more - I believe Mitsubishi and most of the others require a HVAC professional to make the final connections, perform any testing & start the unit.

ratflinger is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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
Ductless Mini Splits JackOfAllTrades HVAC 17 01-15-2013 01:20 AM
Ductless AC btus billybarty HVAC 5 09-14-2012 03:10 PM
Ductless Air Conditioner DIY? wb8imy HVAC 3 04-15-2012 09:00 PM
Ductless Mini-Split Opinions BFR HVAC 4 12-13-2010 04:15 PM
Floor Vents for A/C? + Ductless for upstairs? dwbc153 HVAC 0 08-02-2009 12:14 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.