Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Entegra Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 11-25-2013, 10:09 AM   #15
Senior Member
 
Nowabeachbum's Avatar
 
Entegra Owners Club
Join Date: Apr 2011
Location: Estero, FL
Posts: 2,528
Quote:
Originally Posted by hogdriver View Post
The way I understand the Engine Preheat switch is it controls a valve vs a system. It works by allowing the Aqua Hot Coolant to circulate thru the heat exchanger with the engine coolant. If the engine is cold and the Aqua Hot is warm, it will gradually warm the engine coolant and therefore the motor. If the engine is warmest, opening the valve allows the hot coolant to warm the Aqua hot system and it can be used in any zone.
I guess this would be a great question for Entegra CS. Living in Florida, I have never used the preheat switch in 2 coaches and always have hot water when I arrive at my next stop. I always assumed the preheat controlled a pump for circulating engine coolant. When the engine is running, the water pump does this job so that when the engine is shut down you would need something to pump the engine coolant.
__________________
Gary & Leigh
2019 Entegra Cornerstone 45Y,
2010 Seneca, 2011 & 2014 Anthem, 2017, 2018 Cornerstone(All Sold)
Nowabeachbum is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 11-25-2013, 10:38 AM   #16
Senior Member
 
Magic-carpet's Avatar
 
Join Date: Apr 2012
Location: Hilton Head Island, SC
Posts: 1,394
I think a couple of sections in the manual will help explain how this all works:

— Page 7 —
©11/2011 Aqua-Hot® 450-DE2 Hydronic Heating System Service Manual—Rev. C
SECTION 1: INTRODUCTION TO THE 450-DE
Engine Preheat System:

The engine preheat system is responsible for heating the motor
home’s engine block in order to make it easier to start-up
when cool weather conditions exist.
When the engine preheat system is activated via the interior
switch panel, the motor home’s engine coolant is circulated
through a dedicated copper coil in the Aqua-Hot’s boiler
tank, where heat from the antifreeze and water heating solution
is transferred to the motor home’s engine coolant. The
heated engine coolant is then transported back to the engine
where it transfers the heat to the engine to gradually warm it.
Additionally, the Aqua-Hot 450-DE includes a motor aide
feature, which uses the circulation of the motor home’s engine
to transport the engine’s coolant from the Aqua-Hot’s
boiler tank to the motor home’s warm engine and back to the
boiler tank. Through this process, the boiler tank is kept
heated, which reduces the time required to bring the tank to
operating temperature for interior heat and continuous domestic
hot water. This motor aide feature is part of the engine
preheating feature and plumbing system, and requires
no action on the user’s behalf to function.

Engine Preheat Switch:

The engine preheat switch activates the engine preheat
pump, which draws the motor home’s engine coolant
through the boiler tank to heat it before returning it to the
engine block to transfer the heat there. Either the diesel burner
switch or the electric element switch must also be
activated in order for the engine preheat feature to function.
The engine preheat switch does not need to be activated for
the motor-aide feature to work and should be shut off when
traveling.

So to conclude, I think what they are saying is that the "motor-aide" is always working.

To increase the temperature in your coach you will need to call for the heat via your thermostat in the comfort control center.
__________________
Jeanne & Rosko
2017 Cornerstone 45B
2014 Anthem 44B Classic (traded)
Magic-carpet is offline   Reply With Quote
Reply

Tags
heater



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


» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 08:55 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2025, vBulletin Solutions, Inc.