Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-06-2019, 12:16 AM   #1
Rivet Master
 
2007 27' International CCD FB
San Diego , California
Join Date: Sep 2014
Posts: 1,188
Blizzard NXT 15k Upgrade

Success! Finally after many months, had a long weekend to tackle this job.

I have an '07 27FB Ocean Breeze with original Penguin I 13.5k unit. Still worked, but as I'm in sunny Southern California, it wasn't up to task with a larger airstream. Enter the Blizzard NXT 15k. I've been eyeing this unit for a couple years as it's sold as the latest top of the line 15k high performance unit.

My aim was to keep a single roof top AC, transfer my Microair Easystart 366 so as to run on a single Honda 2200 generator, and have the best performance possible in a single energy efficient unit.

To be on the safe side as I was working alone, I rented a compact scissor lift. Best thing ever for this job. $200 rent and delivered. Also took the opportunity to refresh all the sealant on my roof.

Click image for larger version

Name:	ASAC1.jpg
Views:	43
Size:	314.2 KB
ID:	339868

Taking out the old Penguin with the original drip tray was probably the most time consuming part. Lots of sealant to break and scrape. A brick trowel, multi-tool, and plastic scraper were the best tools for the job.

The Blizzard uses more modern drip cups which were easily adapted. Needed a second seal stacked as is typical for this configuration.

Click image for larger version

Name:	ASAC2.jpg
Views:	43
Size:	315.7 KB
ID:	339869

The Easystart 366 installed nicely and fit in the electrical box. I used this schematic to install which is the same from the rest of the Dometic line.

Click image for larger version

Name:	ASAC3.jpg
Views:	42
Size:	286.5 KB
ID:	339870
Click image for larger version

Name:	ASAC4.JPG
Views:	50
Size:	168.9 KB
ID:	339871

And the lift:
Click image for larger version

Name:	ASAC5.jpg
Views:	46
Size:	322.7 KB
ID:	339872

Unit in place. It's about the same footprint, and a few inches taller. I'm okay with that for more cooling performance. The swoopy styling and split color tone help it look more compact than it is.

Click image for larger version

Name:	ASAC6.jpg
Views:	47
Size:	311.0 KB
ID:	339873

Haven't gotten to test it out much yet as I finished late in the day. It works! Feels very cold, and moves lots of air. Airflow in my non ducted AS is definitely louder than my Penguin I on high but that's okay if my goal is to move lots of air to cool it. Pretty mellow in low. Can't hear the compressor come on whatsoever, but that could be a function of the easystart too.

Will share more on the performance as I get more use out of it in the summer. But so far, so good.
__________________

__________________
Boondocking option package:
'07 27FB Ocean Breeze "See Turtle", 3" lift
'09 Lexus LX570, on 33's
Tongue Mount Honda eu2200i - Rear Hitch - Underbelly Storage - Blizzard NXT w/ EasyStart - 3" Lift - 6" Fan Controller
pteck is online now   Reply With Quote
Old 05-06-2019, 05:09 AM   #2
4 Rivet Member
 
nryn's Avatar

 
2019 27' Globetrotter
Chicago area , Illinois
Join Date: Aug 2018
Posts: 339
Very cool (literally)!

On the non-ducted Airstreams, does the cooled air just descend from the spot below the AC unit or is there a means to distribute it around the interior?
__________________

nryn is offline   Reply With Quote
Old 05-06-2019, 07:30 AM   #3
Rivet Master

 
2007 22' International CCD
Corona , California
Join Date: Jul 2013
Posts: 6,805
There are vent louvers around the part of the unit that hangs down into the interior. They do distribute the Air well enough to keep the interior comfortable.
__________________
Rich, KE4GNK/AE, Overkill Engineering Dept.
'The Silver HamShack' ('07 International 22FB CCD 75th Anniversary)
Multiple Yaesu Ham Radios inside and many antennae sprouting from roof, ProPride hitch, Prodigy P2 controller.
2012 shortbed CrewMax 4x4 Toyota Tacoma TV with more antennae on it.
rmkrum is online now   Reply With Quote
Old 05-06-2019, 12:57 PM   #4
Rivet Master
 
2007 27' International CCD FB
San Diego , California
Join Date: Sep 2014
Posts: 1,188
This is Dometics newer Air Distribution Box (ADB), which is common for their whole lineup of rooftop air conditioners.

Click image for larger version

Name:	ASACADB.JPG
Views:	33
Size:	38.8 KB
ID:	339912

As rmkrum mentions, there are louvers to every side of the box, to vent air in that direction. Plus two downward spouts. Each can be open/closed/adjusted.

The vent to the front of the ADB (nearest the intake grill) has the weakest flow. Which in my case is not ideal as that feeds the farther front bedroom space.

The NXT moves a LOT of air, which is probably more optimal for a newer gen ducted AS to more even distribution. In my use on high fan mode, I'll likely open every spout to maximize overall cooling rather than to manage flow.

Still, this represents a rather substantial upgrade form my Penguin 1. Especially coming in to a destination after the trailer has been heat soaked. It's overcast all week here, but I hope to test it under more demanding conditions soon.
__________________
Boondocking option package:
'07 27FB Ocean Breeze "See Turtle", 3" lift
'09 Lexus LX570, on 33's
Tongue Mount Honda eu2200i - Rear Hitch - Underbelly Storage - Blizzard NXT w/ EasyStart - 3" Lift - 6" Fan Controller
pteck is online now   Reply With Quote
Old 05-09-2019, 08:32 AM   #5
3 Rivet Member
 
harryk's Avatar
 
2005 31' Classic
Venice , Florida
Join Date: Dec 2013
Posts: 144
Blizzard ac

Just finished up our install of a 15k Blizzard with heat pump in our Classic 31. Install was difficult because 2 of the top shroud screws were installed too tight and after trying everything I could think of, wound up drilling the stainless phillips heads off and that itself was a task because they are thru plastic and you have to spray coolant as you are drilling or the plastic melts Installed the drip cups and that part was easy. Subsequently changed all of the fasteners to stainless hex bolts. Also had to use several stainless hose clamps to help secure the top & bottom shrouds securely across the rear. Easy Start was simple to install & works well on our 32k inverter/generator.
Performance is OUTSTANDING ! Love it so far. Note: Purchased from PPL Motorhomes and their parts / customer service is the best !
harryk is offline   Reply With Quote
Old 05-09-2019, 11:25 AM   #6
Rivet Master
 
2007 27' International CCD FB
San Diego , California
Join Date: Sep 2014
Posts: 1,188
Funny you mention the shroud screws. I had one that was cross threaded too. Fortunately, I had a hex drive impact with correct Philips bit and was able back it out without much problems.

I still can't comment on the performance as it's been may grey here in normally sunny socal.

The fan moves an incredible amount of air. 350CFM is what it's rated it, and is the highest in Dometics lineup. I can't find a document at the moment, but this unit also draws incrementally more, the most power for compressor and fan in Dometics linup, which should speak to its performance capacity, even if it's rated at 15k like others.

I have yet to fully "train" my easystart on as I'm waiting for warmer weather. My hope is that a single compact Honda EU2200i will still continue to support this unit. I believe it will.

That said, Dometic recently acquired the Atwood Air Command unit. This is documented at 16k-18k BTU performance, so if one absolutely must have unequalled performance in a single unit, it will be that one. It has a interior fan CFM rating of 360CFM in case anyone is wondering. With split fan and cooling motors. It is physically larger and "commercial" looking if that's a consideration. It's thermostat setup is a bit different too.
__________________
Boondocking option package:
'07 27FB Ocean Breeze "See Turtle", 3" lift
'09 Lexus LX570, on 33's
Tongue Mount Honda eu2200i - Rear Hitch - Underbelly Storage - Blizzard NXT w/ EasyStart - 3" Lift - 6" Fan Controller
pteck is online now   Reply With Quote
Old 05-09-2019, 11:43 AM   #7
Rivet Master
 
2007 27' International CCD FB
San Diego , California
Join Date: Sep 2014
Posts: 1,188
Found the table of specification which I chopped down to compare the NXT, Penguin II, and Brisk II units. Even though they are all rated as 15k units, you can see that the specifications for power draw and refrigerant are indeed different enough to suggest more cooling capacity from the NXT model.

Click image for larger version

Name:	ASACpwrcompare.jpg
Views:	27
Size:	119.7 KB
ID:	340247
__________________
Boondocking option package:
'07 27FB Ocean Breeze "See Turtle", 3" lift
'09 Lexus LX570, on 33's
Tongue Mount Honda eu2200i - Rear Hitch - Underbelly Storage - Blizzard NXT w/ EasyStart - 3" Lift - 6" Fan Controller
pteck is online now   Reply With Quote
Old 05-17-2019, 06:03 AM   #8
3 Rivet Member
 
jeffmc306's Avatar
 
2019 27' Globetrotter
McHenry , Illinois
Join Date: Apr 2018
Posts: 174
Blog Entries: 4
Quote:
Originally Posted by pteck View Post
Found the table of specification which I chopped down to compare the NXT, Penguin II, and Brisk II units. Even though they are all rated as 15k units, you can see that the specifications for power draw and refrigerant are indeed different enough to suggest more cooling capacity from the NXT model.

Attachment 340247
pteck, thanks for sharing the great photos and description of your upgrade! Takes a lot of ambition to tackle a big job like that.

Looking at the table you posted, it's interesting how much more refrigerant there is in the NXT compared to the other two - and they're all "rated" at 15K BTU. I'll bet yours is going to have much better performance.

Congrats on the great job and upgrade!
__________________

__________________
2019 27’ Globetrotter FBT Walnut/Dublin Slate
2018 FC23FB (traded)
2019 Ram 1500 Laramie Sport, Blue Ox 1000#
2020 Retirement Plan
jeffmc306 is online now   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
Hot Deal on 15k A/C Upgrade pteck Furnaces, Heaters, Fireplaces & Air Conditioning 14 11-10-2018 11:26 AM
Has anyone installed Dometic Blizzard NXT in their AS? ghaag General Repair Forum 1 08-23-2018 09:03 AM
Anyone tried Meguiar's NXT Wax? starcraft Exterior Restoration Forum 13 11-16-2015 06:49 AM
Coleman NXT Grill PRGairstream LP Gas, Piping, Tanks & Regulators 1 09-24-2014 08:08 PM
15K BTU Brisk Air vs. 15K BTU Penguin adwriter73 Furnaces, Heaters, Fireplaces & Air Conditioning 9 05-23-2011 10:32 AM


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 05:55 PM.


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