Wiring an Aqualarm - SailNet Community
 
LinkBack Thread Tools
post #1 of 7 Old 10-16-2015 Thread Starter
Master Mariner
 
capta's Avatar
 
Join Date: Jun 2011
Location: somewhere south of civilization
Posts: 3,611
Thanks: 73
Thanked 178 Times in 169 Posts
Rep Power: 6
 
Wiring an Aqualarm

At us$60.00 an impeller and an hour to an hour and a half to remove and replace the pump with a new impeller, I'd really like to limit this to a yearly maintenance issue, not a lack of water caused necessity.
Enter the new to me item; Aqualarm cooling water flow detector. About time! Brilliant, why did it take so long for this one to get on the market and why doesn't every water cooled engine have one???????
So, the question is can this normally open switch be used with an Onan fuel solenoid to immediately shut down the unit automatically, if the cooling water stops? As the pump is direct drive, I assume it begins pumping immediately when the engine is cranking over, which would close the switch, allowing the generator to start or would it interfere with the fuel solenoid during start up?
If it would allow the generator to start, I assume I would just break the solenoid positive side wiring and add this switch, like a bilge pump auto switch.
I'm really not interested in running an alarm, as the time it would take to shut down the gene would probably cost me the impeller anyway.
Any thoughts?
I will alarm the ME though, because I have a cockpit shutdown on that.
Attached Thumbnails
aqualarm.jpg  

"Any idiot can make a boat go; it takes a sailor to stop one." Spike Africa aboard the schooner Wanderer in Sausalito, Ca. 1964.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

facebook.com/svskippingstone
Our Videos;

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
capta is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 7 Old 10-17-2015
Senior Member
 
Join Date: Feb 2010
Location: Narragansett Bay
Posts: 13,887
Thanks: 64
Thanked 338 Times in 317 Posts
Rep Power: 8
   
Re: Wiring an Aqualarm

I would prefer an alarm, which would allow for plenty of time to shut down, before damage occurs. Even if the sensor detects lack of flow and kills the engine, aren't you going to want to check the impeller anyway? It could be the reason for lack of flow. On the other hand, if it's the sensor that is defective, you'll end up needing to disconnect it from the fuel pump to use your motor.

I actually purchased the same sensor for my main engine and haven't gotten around to installing it yet. I had to cut the old one out (diff part), as it was defective.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Jeanneau 54DS

In the harsh marine environment, something is always in need of repair. Margaritas fix everything.
Minnewaska is offline  
Quote Quick Reply Share with Facebook
post #3 of 7 Old 10-17-2015
al brazzi
 
Join Date: Oct 2014
Location: Lower Chesapeake bay
Posts: 1,316
Thanks: 0
Thanked 38 Times in 38 Posts
Rep Power: 3
 
Re: Wiring an Aqualarm

Quote:
Originally Posted by Minnewaska View Post
I would prefer an alarm, which would allow for plenty of time to shut down, before damage occurs. Even if the sensor detects lack of flow and kills the engine, aren't you going to want to check the impeller anyway? It could be the reason for lack of flow. On the other hand, if it's the sensor that is defective, you'll end up needing to disconnect it from the fuel pump to use your motor.

I actually purchased the same sensor for my main engine and haven't gotten around to installing it yet. I had to cut the old one out (diff part), as it was defective.
I second that, I would want an alarm and manual shut down especially on the main power plant. I wouldn't interlock the fuel maybe the engine cut-off, on Diesels of course there are different types of cut offs so its tricky to do that. but unless its something you would sleep through I would keep it manual. But I haven't used one YET!! I like the idea.
I just checked the site they have a nice cheap panel ($46) you can get one for two locations for $75

Last edited by albrazzi; 10-17-2015 at 10:25 AM.
albrazzi is offline  
Quote Quick Reply Share with Facebook
post #4 of 7 Old 10-17-2015
Senior Member
 
Join Date: Jan 2011
Posts: 332
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 6
 
Re: Wiring an Aqualarm

GREETINGS EARTHLINGS , sound a good idea. Some years ago a carrier bag got into the water intake on one of the sail training vessels I was on (75') and took out the engine as we where coming into port scary indeed playing touch and go in a confined space with paying people onboard not a good inpression. The came in past the grid strainer round the frongs of the inpeller melted and stopped the water 5000 latter ($8000) and a new head engine fixed.AS ALWAYS GO SAFE
captflood is offline  
Quote Quick Reply Share with Facebook
post #5 of 7 Old 10-17-2015
al brazzi
 
Join Date: Oct 2014
Location: Lower Chesapeake bay
Posts: 1,316
Thanks: 0
Thanked 38 Times in 38 Posts
Rep Power: 3
 
Re: Wiring an Aqualarm

Quote:
Originally Posted by captflood View Post
GREETINGS EARTHLINGS , sound a good idea. Some years ago a carrier bag got into the water intake on one of the sail training vessels I was on (75') and took out the engine as we where coming into port scary indeed playing touch and go in a confined space with paying people onboard not a good inpression. The came in past the grid strainer round the frongs of the inpeller melted and stopped the water 5000 latter ($8000) and a new head engine fixed.AS ALWAYS GO SAFE
I had a similar incident although didn't lose anything but the impeller, shut down in enough time but surely there was some luck there too.
I like the alarm more and more as I think about it.
albrazzi is offline  
Quote Quick Reply Share with Facebook
post #6 of 7 Old 10-17-2015 Thread Starter
Master Mariner
 
capta's Avatar
 
Join Date: Jun 2011
Location: somewhere south of civilization
Posts: 3,611
Thanks: 73
Thanked 178 Times in 169 Posts
Rep Power: 6
 
Re: Wiring an Aqualarm

Quote:
Originally Posted by Minnewaska View Post
I would prefer an alarm, which would allow for plenty of time to shut down, before damage occurs. Even if the sensor detects lack of flow and kills the engine, aren't you going to want to check the impeller anyway? It could be the reason for lack of flow. On the other hand, if it's the sensor that is defective, you'll end up needing to disconnect it from the fuel pump to use your motor.

I actually purchased the same sensor for my main engine and haven't gotten around to installing it yet. I had to cut the old one out (diff part), as it was defective.
The Onan is a generator, not the ME. As stated, the ME will have an alarm.

"Any idiot can make a boat go; it takes a sailor to stop one." Spike Africa aboard the schooner Wanderer in Sausalito, Ca. 1964.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

facebook.com/svskippingstone
Our Videos;

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
capta is offline  
Quote Quick Reply Share with Facebook
post #7 of 7 Old 10-17-2015
Senior Member
 
Join Date: Feb 2010
Location: Narragansett Bay
Posts: 13,887
Thanks: 64
Thanked 338 Times in 317 Posts
Rep Power: 8
   
Re: Wiring an Aqualarm

Quote:
Originally Posted by capta View Post
The Onan is a generator, not the ME. As stated, the ME will have an alarm.
I understand. I only referenced my ME, since that's what I bought the alarm for. My advice was the same for your genset.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Jeanneau 54DS

In the harsh marine environment, something is always in need of repair. Margaritas fix everything.
Minnewaska is offline  
Quote Quick Reply 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:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Wiring Help Please cjmcfall Gear & Maintenance 10 12-10-2013 12:22 AM
Bilge Pump (aqualarm) cheoylee26 Gear & Maintenance 6 02-20-2012 10:35 PM
AM/FM/CD Wiring Harness ccriders Gear & Maintenance 8 03-22-2010 10:22 PM
6v wiring Acadia Gear & Maintenance 7 11-16-2008 01:43 PM
Wiring drynoc Gear & Maintenance 10 05-08-2005 09:24 PM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome