RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
 

Go Back   Thor Forums > Thor Tech Forums > Modifications and Updates
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 08-15-2018, 06:21 PM   #221
Senior Member
 
Tupelo Kid's Avatar
 
Brand: Thor Motor Coach
Model: ACE
State: Georgia
Posts: 214
THOR #9143
Quote:
Originally Posted by halfprice View Post
yes. I added the second ac like you described. I bought a 50 to two 30 adaptor for when I'm on shore power. With both acs on the temp drops fast. Then I only use the new rear ac. Keeps the mh cold and the noise level in the living room is much lower.

With no shore power and using the gen it's the living room ac only

Jerry
Jerry,
Did you install yourself or have it installed?
I'm asking to ensure there is indeed space in the roof and side walls to run the wire.
I have opened the fan unit in the bedroom and do not see a heavy wire for
a 2nd ac unit so I guess it would connect to the present 110 wire and run out.
Thanks for your update.
__________________

__________________
Ours is a 2018 THOR ACE 29.3
Tupelo Kid is offline   Reply With Quote
Old 08-15-2018, 06:34 PM   #222
Senior Member
 
halfprice's Avatar
 
Brand: Thor Motor Coach
Model: Hurricane 29M
State: California
Posts: 2,706
THOR #3156
Quote:
Originally Posted by Tupelo Kid View Post
Jerry,
Did you install yourself or have it installed?
I'm asking to ensure there is indeed space in the roof and side walls to run the wire.
I have opened the fan unit in the bedroom and do not see a heavy wire for
a 2nd ac unit so I guess it would connect to the present 110 wire and run out.
Thanks for your update.
Yes I did the install myself or I should say with a friend. In the vent opening there are 12 volt wires for a fan. I used these wires to fish the 10 gauge wires to the cabinet over the bed. Made a left turn and ran the wires through the cabinet towards the bathroom wall. Drilled a hole in the cabinet wall, whichi s also the bathroom/shower wall in my mh, so I could fish the wires down the wall then ran them under the bed to where all the other electrical components are located. Then out through the floor to where I mounted the new 30 amp plug The romex outside the coach I put in flexible conduit for protection.

It took about 8 hours to do which included several trips to home depot, a couple of do overs, due to no experience doing this mod before. But overall it wasnt very difficult. Just time consuming for lack of experience.


Jerry
__________________

__________________
https://www.thorforums.com/forums/f2...mods-4609.html
Jerry, Maria, and Sasha 6lb Yorkie
2017 Thor Hurricane 29M
2016 Jeep Wrangler Unlimited Sport
FMCA # F464385
halfprice is offline   Reply With Quote
Old 08-15-2018, 06:45 PM   #223
Senior Member
 
Tupelo Kid's Avatar
 
Brand: Thor Motor Coach
Model: ACE
State: Georgia
Posts: 214
THOR #9143
Quote:
Originally Posted by Long & Winding road View Post
Well the whole point of this tread was to improve our exsisting AC were we DONT have to run a 2nd AC.

Mine is much improved not to mention im saving like $800+ bucks over 2nd AC. I only have 30 amp service so that would only complecate things.

But If my RV was any larger I would have to go with 2nd AC.
Thanks. I know it is and understand.
Sorry for hijacking your post.
Your post is most helpful and I will be trying your mod once I dive into it.
However, I still want the 2nd ac unit regardless.
It will be used when needed in very hot situations and as backup should the orig fails.
I plan to run both at medium setting when we are out to protect the pups in case the
orig breaks the other unit will keep them safe until I return.
Along with setting up a warning unit for temp change to my cell. :-)
Thanks again.
__________________
Ours is a 2018 THOR ACE 29.3
Tupelo Kid is offline   Reply With Quote
Old 08-15-2018, 07:56 PM   #224
Senior Member
 
Brand: Still Looking
Model: Newmar Bay Star Sport 300
State: Alabama
Posts: 3,028
THOR #6826
Quote:
Originally Posted by halfprice View Post
Yes I did the install myself or I should say with a friend. In the vent opening there are 12 volt wires for a fan. I used these wires to fish the 10 gauge wires to the cabinet over the bed. Made a left turn and ran the wires through the cabinet towards the bathroom wall. Drilled a hole in the cabinet wall, whichi s also the bathroom/shower wall in my mh, so I could fish the wires down the wall then ran them under the bed to where all the other electrical components are located. Then out through the floor to where I mounted the new 30 amp plug The romex outside the coach I put in flexible conduit for protection.



It took about 8 hours to do which included several trips to home depot, a couple of do overs, due to no experience doing this mod before. But overall it wasnt very difficult. Just time consuming for lack of experience.





Jerry


Jerry, did you provide a new circuit breaker for the second AC? Iím considering an install and mostly wondering about pulling wires through the ceiling.
__________________
Pete'sMH is offline   Reply With Quote
Old 08-15-2018, 10:47 PM   #225
Senior Member
 
halfprice's Avatar
 
Brand: Thor Motor Coach
Model: Hurricane 29M
State: California
Posts: 2,706
THOR #3156
Quote:
Originally Posted by Pete'sMH View Post
Jerry, did you provide a new circuit breaker for the second AC? Iím considering an install and mostly wondering about pulling wires through the ceiling.
Yes I added a breaker. Got it at Home Depot.

The wires through the ceiling was easy because of the 12 volt wires already there,

Jerry
__________________
https://www.thorforums.com/forums/f2...mods-4609.html
Jerry, Maria, and Sasha 6lb Yorkie
2017 Thor Hurricane 29M
2016 Jeep Wrangler Unlimited Sport
FMCA # F464385
halfprice is offline   Reply With Quote
Old 08-25-2018, 04:48 AM   #226
Senior Member
 
Tupelo Kid's Avatar
 
Brand: Thor Motor Coach
Model: ACE
State: Georgia
Posts: 214
THOR #9143
Quote:
Originally Posted by halfprice View Post
Yes I added a breaker. Got it at Home Depot.

The wires through the ceiling was easy because of the 12 volt wires already there,

Jerry
Decided to add a little update:
I had to take the MH into CW yesterday for them to replace slide seals or rubber flaps at the top and bottom of the slide.
While there I requested an estimate for installing the 2nd AC unit with a 110 plug. I also asked for an estimate to install the Gen Auto start.
They refused to install either.

Said they had never installed an auto gen start on a MH.
Also said they would not install the AC unit for 110 due to "some" AC's have a 2nd & 3rd start cycle to ensure the unit will start if it fails the 1st time.
Because of this they said most 110 GF plugs in the MH parks would trip and I would not be happy not being able to run the unit.

OH, and they didn't replace the slide seals after I've been waiting for them since Aug 2017 when we took delivery.

I took a detour from the service dept to the GM's office and inquired about this. He was in question about all of this as well.
On the Auto Gen start he said they had installed 2 of these in the past 2 weeks. He said they were both toy haulers but if they can install that they should be able to install in the MH.
He said he would call me in a day or 2.


I didn't know it was this difficult to spend my money.

Sure was easy to spend it for the MH but....
__________________
Ours is a 2018 THOR ACE 29.3
Tupelo Kid is offline   Reply With Quote
Old 08-25-2018, 01:28 PM   #227
Senior Member
 
Brand: Still Looking
Model: Newmar Bay Star Sport 300
State: Alabama
Posts: 3,028
THOR #6826
Quote:
Originally Posted by Tupelo Kid View Post
Decided to add a little update:

I had to take the MH into CW yesterday for them to replace slide seals or rubber flaps at the top and bottom of the slide.

While there I requested an estimate for installing the 2nd AC unit with a 110 plug. I also asked for an estimate to install the Gen Auto start.

They refused to install either.



Said they had never installed an auto gen start on a MH.

Also said they would not install the AC unit for 110 due to "some" AC's have a 2nd & 3rd start cycle to ensure the unit will start if it fails the 1st time.

Because of this they said most 110 GF plugs in the MH parks would trip and I would not be happy not being able to run the unit.



OH, and they didn't replace the slide seals after I've been waiting for them since Aug 2017 when we took delivery.



I took a detour from the service dept to the GM's office and inquired about this. He was in question about all of this as well.

On the Auto Gen start he said they had installed 2 of these in the past 2 weeks. He said they were both toy haulers but if they can install that they should be able to install in the MH.

He said he would call me in a day or 2.





I didn't know it was this difficult to spend my money.



Sure was easy to spend it for the MH but....


Itís always puzzled me why service people refuse work. Canít remember how many times Iíve been told (mostly on cars) ďthatís normalĒ or ďthey all do thatĒ when itís obvious that something is amiss! I make a mental note and go elsewhere. Good luck.
__________________
Pete'sMH is offline   Reply With Quote
Old 08-25-2018, 02:33 PM   #228
Senior Member
 
thor293's Avatar
 
Brand: Thor Motor Coach
Model: A.C.E 29.3
State: Ohio
Posts: 610
THOR #1620
Quote:
Originally Posted by Tupelo Kid View Post
Decided to add a little update:
I had to take the MH into CW yesterday for them to replace slide seals or rubber flaps at the top and bottom of the slide.
While there I requested an estimate for installing the 2nd AC unit with a 110 plug. I also asked for an estimate to install the Gen Auto start.
They refused to install either.

Said they had never installed an auto gen start on a MH.
Also said they would not install the AC unit for 110 due to "some" AC's have a 2nd & 3rd start cycle to ensure the unit will start if it fails the 1st time.
Because of this they said most 110 GF plugs in the MH parks would trip and I would not be happy not being able to run the unit.

OH, and they didn't replace the slide seals after I've been waiting for them since Aug 2017 when we took delivery.

I took a detour from the service dept to the GM's office and inquired about this. He was in question about all of this as well.
On the Auto Gen start he said they had installed 2 of these in the past 2 weeks. He said they were both toy haulers but if they can install that they should be able to install in the MH.
He said he would call me in a day or 2.


I didn't know it was this difficult to spend my money.

Sure was easy to spend it for the MH but....
Unfortunately that is the response that seems to be typical for CW. I wont ever spend another dime with them they are absolutely useless. If we were closer I would help you install the unit. Of if you are ever coming to Ohio hit me up!
__________________
2015 Thor A.C.E. 29.3
2014 Honda CRV Toad
Ohio FMCA 317123
Camping World Indianapolis, worst dealer EVER experienced
thor293 is offline   Reply With Quote
Old 08-26-2018, 04:22 AM   #229
Senior Member
 
Tupelo Kid's Avatar
 
Brand: Thor Motor Coach
Model: ACE
State: Georgia
Posts: 214
THOR #9143
Talking

Quote:
Originally Posted by thor293 View Post
Unfortunately that is the response that seems to be typical for CW. I wont ever spend another dime with them they are absolutely useless. If we were closer I would help you install the unit. Of if you are ever coming to Ohio hit me up!
Thanks for the offer.
I appreciate it.
Hopefully I'll find someone within 300 miles (OR a LOT less) and have the 2nd air condition unit installed and the auto generator start unit too.

It's tough to be ignorant but I just can't know everything. (GRIN)
__________________
Ours is a 2018 THOR ACE 29.3
Tupelo Kid is offline   Reply With Quote
Old 09-21-2018, 01:56 PM   #230
Junior Member
 
Brand: Thor Motor Coach
Model: Windsport 29M
State: Minnesota
Posts: 4
THOR #12073
Wonderful Thread!

Except for rebuilding my AC units (yes two), I can't wait to apply the ducting and insulating tips!! I'll try to find a way into the front & back end cap too that has nothing... should help sound and heat. Great ideas! Thanks!

For the airflow problem while driving:

Has anyone tried adding a scoop or deflector to each side of the A/C cover? This would help drive air into the case as much as extra fans inside. It wouldn't help gas mileage of course. Has this been tried?

Way way back in this thread there was one guy who pulled his unit at a rest stop and put it back in reversed (since airflow while driving is backwards, see http://www.thorforums.com/forums/sho...0&postcount=72). He reported great success. Has anyone else given this a go? Feels like there must be a good reason RVs are not built this way, since this would be so simple for them with no added cost. Any thoughts on this?

Barry
__________________
bgpeters is offline   Reply With Quote
Old 09-21-2018, 03:34 PM   #231
Junior Member
 
Brand: Thor Motor Coach
Model: Windsport 29M
State: Minnesota
Posts: 4
THOR #12073
I'll try posting again... (don't know what happened to my 1st try).

This is a WONDERFUL thread. Thank you so much for all the great tips. I have 2 AC units in my Windsport 29M, so I'm already in pretty good shape. Yet, I have a hard time keeping my hands off if I find a way to 'fix' things to work a little better. So, I'm definitely going to take a close look at my duct work and apply the tips here to make it more efficient. Insulating the low pressure portion of the AC is on my list too.

To help with airflow while driving, how about a scoop/deflector on each side of the cover to pull air in and help the condenser cool? Anyone tried that? I know some here have added fans.

Way way back a guy (post #72 in this thread by gmtech16450yz) had pulled & remounted his AC unit backwards to deal with the airflow problem while driving. I wonder why RV manufacturers don't do this as a standard practice? It would not cost more.
__________________
bgpeters is offline   Reply With Quote
Old 09-21-2018, 04:24 PM   #232
Senior Member
 
Brand: Thor Motor Coach
Model: Gemini 24TX (Formerly)
State: California
Posts: 1,431
THOR #5821
As far as icing, we have two Dometic AC's installed in our Gemini, and yes they can and occasionally do ice, but they seen to have their own recovery cycles when that does happen. If I set the thermostats at 77 or 78 they virtually never ice, if I set them for 70 or 71, they tend to ice more often. They also can and do ice when run in the heat pump mode, under the right, or wrong, circumstances.
__________________
Laco is offline   Reply With Quote
Old 09-21-2018, 05:40 PM   #233
Senior Member
 
Long & Winding road's Avatar
 
Brand: Thor Motor Coach
Model: 2017 Axis 25.4
State: Arkansas
Posts: 2,610
THOR #12231
Quote:
Originally Posted by bgpeters View Post
I'll try posting again... (don't know what happened to my 1st try).

This is a WONDERFUL thread. Thank you so much for all the great tips. I have 2 AC units in my Windsport 29M, so I'm already in pretty good shape. Yet, I have a hard time keeping my hands off if I find a way to 'fix' things to work a little better. So, I'm definitely going to take a close look at my duct work and apply the tips here to make it more efficient. Insulating the low pressure portion of the AC is on my list too.

To help with airflow while driving, how about a scoop/deflector on each side of the cover to pull air in and help the condenser cool? Anyone tried that? I know some here have added fans.

Way way back a guy (post #72 in this thread by gmtech16450yz) had pulled & remounted his AC unit backwards to deal with the airflow problem while driving. I wonder why RV manufacturers don't do this as a standard practice? It would not cost more.
Thats, Im glad its helping folks.

I dont think mounting backwards would do any good unless you change the rotation on the fan (The Fan under the roof cover). Its blowing out (on the condenser) to remove heat so the would be fighting each other. But the scoops might help.

I though about changing the plastic cover on mine.... the louvers restrict the outbound air on the back of the cover. Might see a small inpovement there.

IMO, I think with all of the "easy" mods listed here there is no need to add fans or reverse the AC on the roof.

Im happy with my results - No need for 2nd AC on my short 27 foot RV.
__________________
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, TPMS, Surge tank, Tornado flush, Viair Compressor
Long & Winding road is offline   Reply With Quote
Old 09-21-2018, 05:43 PM   #234
Senior Member
 
Long & Winding road's Avatar
 
Brand: Thor Motor Coach
Model: 2017 Axis 25.4
State: Arkansas
Posts: 2,610
THOR #12231
Quote:
Originally Posted by Laco View Post
As far as icing, we have two Dometic AC's installed in our Gemini, and yes they can and occasionally do ice, but they seen to have their own recovery cycles when that does happen. If I set the thermostats at 77 or 78 they virtually never ice, if I set them for 70 or 71, they tend to ice more often. They also can and do ice when run in the heat pump mode, under the right, or wrong, circumstances.
Good to know. I have not experenced and iceing on my Colman unit. I leave set at 72 deg most of the time. Sometimes I will bump it down to 68 if we are outside then when we come in at night I will turn it up to 74 - 76 so I dont hear it cycle so much when sleeping.
__________________
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, TPMS, Surge tank, Tornado flush, Viair Compressor
Long & Winding road is offline   Reply With Quote
Old 09-21-2018, 07:37 PM   #235
Senior Member
 
Brand: Thor Motor Coach
Model: Gemini 24TX (Formerly)
State: California
Posts: 1,431
THOR #5821
Icing is also very dependent on humidity conditions, virtually never see it happen when conditions are very dry, far more often in humid weather, which is not surprising. I believe you could probably avoid most of it, by continuously running the fan on hi speed, but I dislike the noise associated with that, so live with occasional icing.


I would not suggest changing airflow directions, either for the condenser or the evaporator. Increasing airflow might help, but I certainly would not reverse it.


As far as getting by with a single AC, yes we can, most of the time, but heat build up inside, is dependent, not only on outside temperatures, but sun exposure and the direction of the sun exposure. With ours, even with temps in the 80's, if the front cab area is being blasted by sun, we use the front AC to bleed out that intense heat. If the exposure is from a different direction, even with temps in the high 90's one AC holds it satisfactorily. Its nice to have that second AC available at the touch of a button.
__________________
Laco is offline   Reply With Quote
Old 09-22-2018, 02:09 PM   #236
Senior Member
 
thor293's Avatar
 
Brand: Thor Motor Coach
Model: A.C.E 29.3
State: Ohio
Posts: 610
THOR #1620
A thought on placing scoops on the AC cover, rather than a scoop look at a racing equipment page for NACA Ducts, less drag, not sure if there is room but as I recall there is. NACA Ducts come in assorted sizes.
__________________
2015 Thor A.C.E. 29.3
2014 Honda CRV Toad
Ohio FMCA 317123
Camping World Indianapolis, worst dealer EVER experienced
thor293 is offline   Reply With Quote
Old 09-23-2018, 07:11 AM   #237
Senior Member
 
Brand: Thor Motor Coach
Model: Vegas 27.7
State: California
Posts: 289
THOR #10907
I'm the guy who turned his AC unit around at a rest stop 30 something years ago. It worked then, and it the theory and physics still hold true today with current AC units.

Guys the "reversing" of the airflow by turning the entire unit around isn't something that's really debatable. And no, you don't have to reverse the fan or anything crazy.

The airflow through the condenser comes IN the back, and OUT the sides. Turn the entire AC unit around and the air now comes IN the front, and again, OUT the sides. Last time I checked there's more air hitting the front of a moving vehicle than hitting the back. haha.

Try this... Stick your head out the window of your RV when it's on the freeway. Look forward with your mouth open. You get a mouthful of air don't you? Now turn your head and look backwards with your mouth open. How much air is going in your mouth now? lol. Same principle.

I have the rear Mach 8 heat pump mounted backwards on my Vegas. I can watch the amperage draw drop when the coach starts moving. I don't care if anyone else turns their AC around, I'm just telling you the facts and results of the idea. It seems most of you are having cooling issues when parked anyway. Turning the AC around does nothing when stopped.
__________________
Check out my V8 swap roadster video, don't forget to turn up the sound!...

httphttps://youtu.be/2q9BuzNRc3Q
gmtech16450yz is offline   Reply With Quote
Old 09-24-2018, 11:27 PM   #238
Senior Member
 
Long & Winding road's Avatar
 
Brand: Thor Motor Coach
Model: 2017 Axis 25.4
State: Arkansas
Posts: 2,610
THOR #12231
OH so the fan sucks in and blows out the sides of the AC cover? I thought it was the other way around. SO yeah if it sucks in then reverse mount would works great. I wonder if they install them like they do for two reason: A - areo dynamics (well slightly) and B - so a bird, rocks or bugs dont accumulate in condenser (but bust it up)??
__________________
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, TPMS, Surge tank, Tornado flush, Viair Compressor
Long & Winding road is offline   Reply With Quote
Old 06-19-2019, 11:42 PM   #239
Senior Member
 
Long & Winding road's Avatar
 
Brand: Thor Motor Coach
Model: 2017 Axis 25.4
State: Arkansas
Posts: 2,610
THOR #12231
I thought I would revive this thread since its getting hot outside plus update you on my RV.

Its still cooling great just like it reported last year.

I would do the exact same thing again on ANY RV that I purchased.

Plus the ceramic window tint helps to keep it cool inside ....and you not sitting in the dark with all the windows covered with the ceramic bubble to reject the heat.

But I leave the bubble in the bedroom windows all the time since we like it dark at night (or even for daytime naps).
__________________
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, TPMS, Surge tank, Tornado flush, Viair Compressor
Long & Winding road is offline   Reply With Quote
Old 06-20-2019, 12:26 AM   #240
Senior Member
 
Brand: Thor Motor Coach
Model: Vegas 2018 24.1
State: Florida
Posts: 153
THOR #12484
Learned a lot from this thread. Timely reminder of days when I couldnít get the temp below 80.
For me the biggest difference came from adding the vent right below the primary blower. Iím convinced the air going through the ducts mix with very warm air because itís uninsulated. Taping the baffle to separate the cold and warm also made a huge difference. I usually just leave the 1 LR vent open and 2 in the back. I hit the 60ís frequently in the heat of the day in Florida. May not be possible without the bubble film in the front as when I donít have it itís very warm at the very front.
Great idea the bubble in the back for room darkening.
__________________

__________________
2018 Vegas 24.1
2006 Gulf Stream G24 Sprinter Van
2004 Newmar Scottsdale 3456
2002 National See Breeze 1341
mstng is offline   Reply With Quote
Reply

Thread Tools
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

Disclaimer:

This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.




All times are GMT. The time now is 10:44 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2
×