Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-16-2017, 12:33 PM   #1
3 Rivet Member
 
2018 30' Classic
New York , New York
Join Date: Aug 2016
Posts: 195
Heat Pump on 2018 Classic

Since my Alde system either requires hours to warm up the trailer or eats through propane for a faster heat, my idea was that I would use the heat pump feature on the AC unit since I am not paying for my electricity at my campsite.

We have now tried the heat pump on 3 separate occasions all with roughly the same results but with varying lengths of actual operation. Despite the fact that I am able and did run my AC unit all night, I am not able to run the heat pump without it after some period of time tripping the 30 amp breaker at the pole. Since both of the other times, I wasn't sure how many amps I was pulling, this morning with everything off, I put the heat pump on. It ran for 30 or so minutes and was one degree shy of hitting the desired temperature and it tripped the breaker.

Why would running one unit giving cold air not trip the breaker and running it to give hot trip the breaker? 
Name:   IMG_3183.JPG
Views: 815
Size:  90.7 KB

Name:   IMG_3184.JPG
Views: 821
Size:  90.2 KB

This is what my Progressive surge protector was displaying while the unit was running it heat pump mode if that is at all useful in answering this question.
__________________

ajwbarnard is offline   Reply With Quote
Old 09-16-2017, 02:39 PM   #2
Rivet Master
 
overlander63's Avatar

 
1993 21' Sovereign
Colfax , North Carolina
Join Date: Jun 2003
Posts: 20,934
It can do that because the refrigerant lines are slightly more restricted when operating in heat pump mode, making the compressor to have to work just hard enough it will sometimes trip the breaker.
__________________

__________________
Terry
overlander63 is offline   Reply With Quote
Old 09-16-2017, 02:55 PM   #3
Half a Rivet Short
 
2017 30' Classic
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 8,425
Hi

In heat pump mode some AC units engage heater strips. It lets them operate to lower temperatures without icing. They aren't very smart about just when they need the strips. The extra current for the strips will "help" trip breakers.

Bob
uncle_bob is offline   Reply With Quote
Old 09-16-2017, 03:56 PM   #4
Rivet Master
 
overlander63's Avatar

 
1993 21' Sovereign
Colfax , North Carolina
Join Date: Jun 2003
Posts: 20,934
Quote:
Originally Posted by uncle_bob View Post
Hi

In heat pump mode some AC units engage heater strips. It lets them operate to lower temperatures without icing. They aren't very smart about just when they need the strips. The extra current for the strips will "help" trip breakers.

Bob
I've never seen those strips on a Penguin II. Do you have any photos or links to them?
__________________
Terry
overlander63 is offline   Reply With Quote
Old 09-16-2017, 07:12 PM   #5
3 Rivet Member
 
2018 30' Classic
New York , New York
Join Date: Aug 2016
Posts: 195
Quote:
Originally Posted by uncle_bob View Post
Hi

In heat pump mode some AC units engage heater strips. It lets them operate to lower temperatures without icing. They aren't very smart about just when they need the strips. The extra current for the strips will "help" trip breakers.

Bob


Ok now I understand what you mean by heating strips. There is no mention of them in the user manual. And there is no dometic manual for AC just fridge.
ajwbarnard is offline   Reply With Quote
Old 09-16-2017, 07:21 PM   #6
Half a Rivet Short
 
2017 30' Classic
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 8,425
Hi

I don't *know* that the strips are in this specific AC unit. I've not seen a manual for the one AS uses.

Bob
uncle_bob is offline   Reply With Quote
Old 09-16-2017, 08:18 PM   #7
Obviously-NOT
 
james.mileur's Avatar
 
2017 30' Classic
Kalispell , Montana
Join Date: Nov 2016
Posts: 845
16 + 14 = 30. One more or less amp from the converter cycling, the fridge cycling, the whatever cycling, the old 30 amp breaker, etc., etc. Breaker tripping is not exact and ain't always on the high side. Running at the red line is the edge of the cliff.
__________________
James Mileur, HY80-2-Al,
2017 Classic Twin, 2016 RAM 3500 Megacab, ProPride hitch
james.mileur is offline   Reply With Quote
Old 09-17-2017, 05:25 AM   #8
Rivet Master
 
paiceman's Avatar
 
Currently Looking...
Upper St Clair, PA/Titusville, FL , PA-Summer/FL-Winter
Join Date: Aug 2011
Posts: 2,866
Images: 1
On 30amp, just for kicks try running only the rear AC unit as a heat pump and see if the breaker trips. The rear one is the 13,500 and the front unit is the 15,000. I have no idea if it will make a difference, but I'd try it if it were mine.

In four Airstreams I don't ever remember running the heat pumps. Don't care for them in homes so I've only used the Furnace and now the Alde.

Bud
__________________
SAFE TRAVELS

Bud
Starting to Look (AGAIN) Number 5 Hopefully
USAF Training Instructor (TI) - 68-72
paiceman is offline   Reply With Quote
Old 09-17-2017, 10:39 AM   #9
Half a Rivet Short
 
2017 30' Classic
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 8,425
Hi

Just how cold is it getting? We ran a single heat pump while debugging the Alde. It did a fine job at 50F without being on very much. I don't care for the noise, but it's no worse than running the AC at night. I also don't care for the dogs going into a scratching frenzy right next to me at 3AM. I put up with that as well....

Bob
uncle_bob is offline   Reply With Quote
Old 09-19-2017, 09:00 PM   #10
3 Rivet Member
 
2018 30' Classic
New York , New York
Join Date: Aug 2016
Posts: 195
I won't be able to test any of these theories this week. Summer has returned to VT and temps in the 80's means AC not heat!
__________________

ajwbarnard is offline   Reply With Quote
Reply


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


Similar Threads
Thread Thread Starter Forum Replies Last Post
2018 Jeep Eco-Diesel VS 2018 Expedition? Barretta2 Tow Vehicles 57 03-10-2018 04:39 PM
Using the heat pump/heat strip instead of furnace. crazylev On The Road... 38 10-28-2016 08:58 PM
Heat Pump - Replace with an AC or Heat Pump? A W Warn General Repair Forum 32 10-12-2015 03:18 PM
To heat pump, or not to heat pump, that is the ?? MacDad Furnaces, Heaters, Fireplaces & Air Conditioning 16 09-06-2014 10:58 PM
New AC, Heat Pump or Heat strip? firedog 1990 - 1993 Excella 3 01-22-2010 05:23 PM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:34 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.