Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #22   Report Post  
Bruce in Alaska
 
Posts: n/a
Default 12V refrigeration

In article ,
(Richard Kollmann) wrote:

Radio Frequency Interference (RFI) Is not an Adler Barbour
refrigeration problem as Larry indicates it is a boat refrigeration
industry problem. It seems that only a very few boaters are concerned
with RFI, the others are willing to set the VHF squelch high enough to
silence it out. A few system manufacturers have received complaints
from ham operators about RF from their refrigerators or other boat's
refrigerator's parked nearby. On the few boats that are experiencing a
problem the full box copper screen over the condensing unit does seem
to satisfy at least three radio operators that answered my resent
survey


and why on earth, would one want to purchase an RFI Generator in
the first place just because the OEM's are to cheap to engineer
the refrigeration package right in the first place. For you
guys, that sell your junk to unsuspecting noncommercial boaters,
you can get away with that stuff, but just try and do that on a
Commercial Vessel (tug, pushboat, passenger boat, fish boat, or
ferry, ect) and you'll see the guy back in your shop after the
first trip, complaining about the NOISE it is causing in his radios,
and ready to rip the stuff out and toss it thru your front window.
These guys depend on a working radio with no noise. That radio
is their lifeline, when things go wrong, and when that happens,
they don't have time to go lookiing for the noise, and how to
turn it off. On an Inspected Vessel, they would tolerate that
kind of stuff onboard as they couldn't get a SOLAS Certificate
Issued, with RFI coming from onboard.


Bruce in alaska who HAS denied SOLAS Certificates due to
onboard RFI.......
--
add a 2 before @
  #24   Report Post  
engsol
 
Posts: n/a
Default 12V refrigeration

Comment below....

On Sun, 04 Jul 2004 00:18:06 GMT, Bruce in Alaska wrote:

In article ,
(Richard Kollmann) wrote:

Radio Frequency Interference (RFI) Is not an Adler Barbour
refrigeration problem as Larry indicates it is a boat refrigeration
industry problem. It seems that only a very few boaters are concerned
with RFI, the others are willing to set the VHF squelch high enough to
silence it out. A few system manufacturers have received complaints
from ham operators about RF from their refrigerators or other boat's
refrigerator's parked nearby. On the few boats that are experiencing a
problem the full box copper screen over the condensing unit does seem
to satisfy at least three radio operators that answered my resent
survey


and why on earth, would one want to purchase an RFI Generator in
the first place just because the OEM's are to cheap to engineer
the refrigeration package right in the first place. For you
guys, that sell your junk to unsuspecting noncommercial boaters,
you can get away with that stuff, but just try and do that on a
Commercial Vessel (tug, pushboat, passenger boat, fish boat, or
ferry, ect) and you'll see the guy back in your shop after the
first trip, complaining about the NOISE it is causing in his radios,
and ready to rip the stuff out and toss it thru your front window.
These guys depend on a working radio with no noise. That radio
is their lifeline, when things go wrong, and when that happens,
they don't have time to go lookiing for the noise, and how to
turn it off. On an Inspected Vessel, they would tolerate that
kind of stuff onboard as they couldn't get a SOLAS Certificate
Issued, with RFI coming from onboard.


Bruce in alaska who HAS denied SOLAS Certificates due to
onboard RFI.......


I have to agree with Bruce. As one who has designed a number
of commercial and industrial electronic products, I'll be the first
to admit designing to minimum RFI is a pain...mostly the testing
to make sure it was done right...but the techniques are so well
known it isn't rocket science anymore. There's really no excuse for
electrical equipment to cause RFI, either conducted or radiated.
Norm B
  #25   Report Post  
Glenn Ashmore
 
Posts: n/a
Default Alternative power Refrigeration



Questions of safety with propane on boats have long been addressed. The
real problem with absorption cycle refrigeration (gas refrigerators) is
that they must stay within 5 to 7 degrees of vertical. That makes them
great for RVs and maybe power boats but not for sailboats.
--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com



  #27   Report Post  
JAXAshby
 
Posts: n/a
Default Alternative power Refrigeration

The
real problem with absorption cycle refrigeration (gas refrigerators) is
that they must stay within 5 to 7 degrees of vertical.


not true. unless the vehicle is NOT moving side to side.
  #29   Report Post  
Glenn Ashmore
 
Posts: n/a
Default Alternative power Refrigeration

Jax, you are so full of BS. Norcold and Dometic both say that their
units should be level within 2º when parked and should never exceed 10º
while operating underway. Sloshing side to side does prevent pooling as
long as the tilting is fairly equal in both directions. Sailboats on
passage tend to remain on one tack, and therefore heel in one direction,
for several hours.

In short, when I asked tech support at both companies to recommend their
products for my boat they both said don't do it.

JAXAshby wrote:
The
real problem with absorption cycle refrigeration (gas refrigerators) is
that they must stay within 5 to 7 degrees of vertical.



not true. unless the vehicle is NOT moving side to side.


--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

  #30   Report Post  
JAXAshby
 
Posts: n/a
Default Alternative power Refrigeration

you don't understand how the system works. please don't comment again.

The
real problem with absorption cycle refrigeration (gas refrigerators) is
that they must stay within 5 to 7 degrees of vertical.


not true. unless the vehicle is NOT moving side to side.


lateral forces mimic inclination.








Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
12V refrigeration Skip Gundlach Boat Building 19 July 4th 04 01:18 AM
Refrigeration Cold Plate Temperature Differential GeoffSchultz Cruising 0 January 20th 04 12:44 AM
Refrigeration Hunter 35.5 install Ron Cruising 5 October 25th 03 10:08 PM


All times are GMT +1. The time now is 07:07 AM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 BoatBanter.com.
The comments are property of their posters.
 

About Us

"It's about Boats"

 

Copyright © 2017