Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-09-2015, 07:46 PM   #21
Al
Guru
 
Al's Avatar
 
City: ketchikan, Alaska
Vessel Name: 'SLO'~BELLE
Vessel Model: 1978 Marben-27' Flybridge Trawler(extended to 30 feet) Pilothouse Pocket Cruiser[
Join Date: Apr 2012
Posts: 2,206
Hi Al-and others,

Okay end of the day here us where we are. Purchased a 1500 Watt inverter ($214.00 NAPA). Purchased a 120 V 2.7 cu ft. Haier from Wal-Mart for $114.00.
This after reviewing the boat wiring system. Discovered a forgotten factor. The current Perkins 4-154 has a 110 pre heat unit. On the upcoming change to the Perkins 4-236 there is no need for said pre-heater. Hence, I will use this wiring system to the inverter as it has a built in red light switch. Handy to remind one the inverter is on. There is as I said before, a 110 outlet behind the current 12 volt fridge so the new one has its own 110 outlet. There remains then the placement of outlets to receive both power sources in a convenient location. The inverter will be under the saloon sofa/bunk and away from the engine area (heat). 12 volt wiring will amount to a under 6 foot run from the house batteries to the inverter.
Will keep you advised and thank you all for the contributions-Good stuff!

Al (The other Al) Ketchikan-Bridge to Nowhere, Alaska
Al is offline   Reply With Quote
Old 02-09-2015, 10:01 PM   #22
Senior Member
 
City: MD
Vessel Name: Blue Yonder
Vessel Model: 37
Join Date: Mar 2013
Posts: 346
Are you going to have two outlets and change which one the fridge is plugged into based on inverter power or shore power?
BlueYonder is offline   Reply With Quote
Old 02-10-2015, 12:21 AM   #23
Al
Guru
 
Al's Avatar
 
City: ketchikan, Alaska
Vessel Name: 'SLO'~BELLE
Vessel Model: 1978 Marben-27' Flybridge Trawler(extended to 30 feet) Pilothouse Pocket Cruiser[
Join Date: Apr 2012
Posts: 2,206
Blue Yonder-
Well that seems the simple solution, I am having the Guru of marine electricians coming to the boat to install a complete 110 system to replace the inverter/charger we had taken out a couple of years ago when it failed. I am thinking of challenging him to come up with a tie in system that would allow transferring from 12v to 110 without having to switch plug end between sockets. Maybe using a master switch like from one bank to the other only from one source to the other. Haven't quite figured it out subconsciously and surely not engineer capable to play with it physically. In the end I can live with a simple change out but would still incorporate the red light 110 switch someplace in the inverter system to remind me it is in play.
Thoughts on a switch by any?
Thanks for asking,
Al
Al is offline   Reply With Quote
Old 02-10-2015, 01:44 AM   #24
Moderator Emeritus
 
Bay Pelican's Avatar
 
City: Chicago, IL
Vessel Name: Bay Pelican
Vessel Model: Krogen 42
Join Date: Oct 2007
Posts: 2,993
Just for comparison. Bay Pelican's Subzero under the counter size freezer and refrigerator used 440 amp hours (approximate) per day at anchor. New Isotherm replacements 12v/120v marine units use approximately 140 amp hours per day. Batteries are much happier as there are few cycles per day and corresponding generator use.

No cost justification here. Just makes life easier as we anchor out for 120 days each season.
__________________
Marty
Bay Pelican is offline   Reply With Quote
Old 02-10-2015, 04:58 PM   #25
Al
Guru
 
Al's Avatar
 
City: ketchikan, Alaska
Vessel Name: 'SLO'~BELLE
Vessel Model: 1978 Marben-27' Flybridge Trawler(extended to 30 feet) Pilothouse Pocket Cruiser[
Join Date: Apr 2012
Posts: 2,206
Report on the electrical Guru's suggestion on wiring the inverter into the system.
There is on the market a 110 switch that mimic the 12v master switches we use on our boats. Somewhat different in operation accomplishing the same objection. This will be mounted under our settee with outside access so we will not have to plug/unplug to shore/12v. On order as we speak. Will wire the 12v side as we await. The distance limits are 6 feet from the batteries to the inverter so we will be good on that aspect. Heavy battery lines (#2).
Again, thanks for all of you guys chipping in with good stuff.

Regards,
Al is offline   Reply With Quote
Old 02-10-2015, 06:10 PM   #26
Guru
 
City: Carefree, Arizona
Vessel Name: sunchaser V
Vessel Model: DeFever 48 (sold)
Join Date: Apr 2008
Posts: 10,185
Al

You have taken into account I trust that inverters need space/ventilation for heat dissipation?
sunchaser is offline   Reply With Quote
Old 02-10-2015, 06:41 PM   #27
Guru
 
psneeld's Avatar
 
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,146
#2 battery cable for inverter use is usually abut minimum unless the inverter is right next to the batteries....
psneeld is online now   Reply With Quote
Old 02-10-2015, 07:21 PM   #28
Al
Guru
 
Al's Avatar
 
City: ketchikan, Alaska
Vessel Name: 'SLO'~BELLE
Vessel Model: 1978 Marben-27' Flybridge Trawler(extended to 30 feet) Pilothouse Pocket Cruiser[
Join Date: Apr 2012
Posts: 2,206
Sunchaser Yes, the location is in the same position that a former charger/inveter was located for some 34 years.

Psneeld: The inverter instructions (What! I didn't throw them away??) stated #2 and a maximum distance of 6 feet from batteries. That will be the case. It would sound like the observation of #2 being minimum and not a wiz on wire size (#), would you suggest a size to fit that distance?

Thanks,
A
Al is offline   Reply With Quote
Old 02-10-2015, 07:30 PM   #29
Guru
 
psneeld's Avatar
 
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,146
Quote:
Originally Posted by Al View Post
Sunchaser Yes, the location is in the same position that a former charger/inveter was located for some 34 years.

Psneeld: The inverter instructions (What! I didn't throw them away??) stated #2 and a maximum distance of 6 feet from batteries. That will be the case. It would sound like the observation of #2 being minimum and not a wiz on wire size (#), would you suggest a size to fit that distance?

Thanks,
A
ah....2ga is OK...I like a lot of people tend to go a little silly with inverters sometimes.

Good connections and a cool dry inverter and all will be well.

If you get a low voltage warning too much...then the next size gauge or up 2 sizes would be better...but I really do think 2ga should be OK....but minimum.
psneeld is online now   Reply With Quote
Old 02-11-2015, 11:03 PM   #30
Al
Guru
 
Al's Avatar
 
City: ketchikan, Alaska
Vessel Name: 'SLO'~BELLE
Vessel Model: 1978 Marben-27' Flybridge Trawler(extended to 30 feet) Pilothouse Pocket Cruiser[
Join Date: Apr 2012
Posts: 2,206
psneeld- Sold me! I will move up now and eliminate a potential threat. Thanks, Al
Al 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


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 07:54 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012