Go Back   Thor Forums > Thor Tech Forums > Motorhome Tech Topics
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 09-17-2020, 02:51 PM   #21
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 16,233
THOR #8860
If they would/could install higher efficiency electrical devices: it could be used as a great marketing point!
__________________

__________________
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
"History shows again and again; how Nature points out the folly of Man!"
Bob Denman is offline   Reply With Quote
Old 09-17-2020, 03:14 PM   #22
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 2,189
THOR #6411
Standard rating for A/C is 80 F degrees inside and 95 F outside at 115V. For desert conditions the inside is 95 F degrees and outdoor 115 F outdoors with a voltage of 103.5 volts. The Coleman mach 15 is rated at 1,650 watts standard (14.45 amps @ 115 amps) and 1,900 watts desert (18.36 amps @ 103.5 volts or 15.83 amps @ 120 volts). Very seldom will you see the standard 120 volts at the pedestal. Typical will be 118 V during the late night and 110 V during the hot afternoon at the RV park. Generally the older the park, the lower the voltage. The more RVs is the park the lower the voltage. State and local public parks have the lowest voltages because of they have older infrastructure that has not been upgraded.
My coach has a 1.7 cuft Whirlpool, (14 amps @120 volts) and came with a 30 amp service (50 amp service was not available as an option until March 2016). No chance of running the microwave and the A/C at the same time on a hot day with 112 V volts at the power center.
__________________

__________________
Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
Beau388 is offline   Reply With Quote
Old 09-17-2020, 03:42 PM   #23
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 16,233
THOR #8860
The first chore of mine is to plug in my EMS. I wait until I see what sort of reading I'm getting before I leave the pedestal.
You're right: most parks show 118 volts.
But I've seen as high as 122, and as low as 114.
__________________
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
"History shows again and again; how Nature points out the folly of Man!"
Bob Denman is offline   Reply With Quote
Old 09-17-2020, 08:05 PM   #24
Senior Member
 
Brand: Still Looking
Model: Newmar Bay Star Sport 300
State: Alabama
Posts: 2,626
THOR #6826
Get one of these for about $10 and keep it plugged into a convenient outlet so you can keep an eye on park voltage. Iíve seen 107 during a hot day and 122 in the same park on the same day at night. I keep it in the bathroom and itís just right for a night light as an added bonus. Autoformer is a bit pricey but is a useful addition to any coach.[ATTACH]26171
Attached Thumbnails
Click image for larger version

Name:	IMG_3015.JPG
Views:	13
Size:	41.0 KB
ID:	26171  
__________________
Pete'sMH is offline   Reply With Quote
Old 09-18-2020, 12:08 PM   #25
Member
 
Brand: Thor Motor Coach
Model: Windsport 27B
State: Tennessee
Posts: 45
THOR #14933
Quote:
Originally Posted by Pete'sMH View Post
Also lots of time people have the water heater running on electricity and forget that it can use 6A or so.
That's a great point I didn't think about the water heater. Also didn't consider the power consumption at higher temperatures, in my case it was upper 80's outside. Given everything I was a little lucky.
__________________
mrgscooter is offline   Reply With Quote
Old 09-18-2020, 12:31 PM   #26
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 16,233
THOR #8860
Quote:
Originally Posted by Pete'sMH View Post
...Autoformer is a bit pricey but is a useful addition to any coach.[ATTACH]26171
If you already have a "surge protector" hard-wired into your electrical system: how would you add the AutoFormer? (Assuming that you could...)

I like the idea of a plug-in voltage meter; but I'm not sure if I have a spare outlet anywhere in the RV.
__________________
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
"History shows again and again; how Nature points out the folly of Man!"
Bob Denman is offline   Reply With Quote
Old 09-18-2020, 02:02 PM   #27
Senior Member
 
Brand: Still Looking
Model: Newmar Bay Star Sport 300
State: Alabama
Posts: 2,626
THOR #6826
Quote:
Originally Posted by mrgscooter View Post
That's a great point I didn't think about the water heater. Also didn't consider the power consumption at higher temperatures, in my case it was upper 80's outside. Given everything I was a little lucky.


And if you have an absorption fridge on automatic it can use nearly 4A. And if your batteries are in need of a charge the converter might be drawing several amps as well. It adds up. Or it can be limited to suit your needs.
__________________
Pete'sMH is offline   Reply With Quote
Old 09-18-2020, 08:40 PM   #28
Senior Member
 
OldWEB's Avatar
 
Brand: Thor Motor Coach
State: England
Posts: 234
THOR #16471
Quote:
Originally Posted by Bob Denman View Post
If you already have a "surge protector" hard-wired into your electrical system: how would you add the AutoFormer? (Assuming that you could...)

I like the idea of a plug-in voltage meter; but I'm not sure if I have a spare outlet anywhere in the RV.
The "AutoFormer" is the name of the plug in voltmeter... Hughes Autoformers. Had me going too.
__________________
OldWEB is offline   Reply With Quote
Old 09-18-2020, 08:48 PM   #29
Senior Member
 
OldWEB's Avatar
 
Brand: Thor Motor Coach
State: England
Posts: 234
THOR #16471
AC Voltmeter

A step 'up' from a plug-in voltmeter would be this style of monitor. This is a very simple one and you can go a step up and have them monitor your total power usage, which could be helpful in a site that charges for power. BTW this one is for a 30A shore power and will read 120V.
Attached Images
 
__________________
OldWEB is offline   Reply With Quote
Old 09-18-2020, 09:23 PM   #30
Senior Member
 
Brand: Still Looking
Model: Newmar Bay Star Sport 300
State: Alabama
Posts: 2,626
THOR #6826
Quote:
Originally Posted by Bob Denman View Post
If you already have a "surge protector" hard-wired into your electrical system: how would you add the AutoFormer? (Assuming that you could...)



I like the idea of a plug-in voltage meter; but I'm not sure if I have a spare outlet anywhere in the RV.


You can hardwire an autoformer - as I did because I didnít like the idea of leaving a several hundred dollar device outside. I believe Hughes recommends putting it downstream of a surge protector. The particular plug in voltmeter that I like happens to be sold by he Hughes Autoformer company but, of course it is not the autoformer.... just to be clear.
__________________
Pete'sMH is offline   Reply With Quote
Old 09-18-2020, 09:27 PM   #31
Senior Member
 
Brand: Keystone
Model: Sprinter
State: Florida
Posts: 1,150
THOR #15553
Quote:
Originally Posted by Bob Denman View Post
If you already have a "surge protector" hard-wired into your electrical system: how would you add the AutoFormer? (Assuming that you could...)

I like the idea of a plug-in voltage meter; but I'm not sure if I have a spare outlet anywhere in the RV.
You can hardwire an Autoformer in front of your EMS inside your coach or you can plug in an Autof0ormer at the ped. Where ever you put it to must be before the EMS.
__________________
2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
cavie is offline   Reply With Quote
Old 09-18-2020, 09:30 PM   #32
Senior Member
 
Brand: Keystone
Model: Sprinter
State: Florida
Posts: 1,150
THOR #15553
Quote:
Originally Posted by OldWEB View Post
The "AutoFormer" is the name of the plug in voltmeter... Hughes Autoformers. Had me going too.
Not the name of the voltmeter. It the name of the company. Hughs Autoformers. The name of the voltmeter is a voltmeter.
__________________
2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
cavie is offline   Reply With Quote
Old 09-18-2020, 10:03 PM   #33
Senior Member
 
OldWEB's Avatar
 
Brand: Thor Motor Coach
State: England
Posts: 234
THOR #16471
Quote:
Originally Posted by cavie View Post
Not the name of the voltmeter. It the name of the company. Hughs Autoformers. The name of the voltmeter is a voltmeter.
Back at ya.
Attached Thumbnails
Click image for larger version

Name:	you are a piece of work.png
Views:	9
Size:	315.4 KB
ID:	26196  
__________________
OldWEB is offline   Reply With Quote
Old 09-18-2020, 10:04 PM   #34
Senior Member
 
Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 2,189
THOR #6411
Quote:
Originally Posted by Bob Denman View Post
If you already have a "surge protector" hard-wired into your electrical system: how would you add the AutoFormer? (Assuming that you could...)

I like the idea of a plug-in voltage meter; but I'm not sure if I have a spare outlet anywhere in the RV.
The Hughes auto transformer is made to plug in directly to the pedestal. It comes with a security cable. Most used an extension cable and permanently mount it in a basement compartment and hard wire it to the transfer switch.

Watts is equal to amps times volts. The cut-over point for the extra coils in the transformer is 113 volts. Less say your A/C is drawing 1500 watts @ 120 volts (12.5 amps) and the campground voltage drops to 110 volts so the A/C needs 13.6 amps to keep running. Heat in the motor varies logarithmically with amperage. The transformer kicks in and the voltage to the coach increases by 10 volts back to 120 volts and the A/C now draws 12.5 amps but primary stage of the auto-transformer is still drawing 13.6 amps @ 110 volts from the pedestal.
__________________
Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
Beau388 is offline   Reply With Quote
Old 09-18-2020, 10:07 PM   #35
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 16,233
THOR #8860
Quote:
Originally Posted by cavie View Post
You can hardwire an Autoformer in front of your EMS inside your coach or you can plug in an Autof0ormer at the ped. Where ever you put it to must be before the EMS.
So shore power is currently hooked to my surge protector. I would just have to slip the AutoFormer in front of the surge protector, so that shorepwer hooks into it first?
__________________
Bob Denman is offline   Reply With Quote
Old 09-18-2020, 10:27 PM   #36
Senior Member
 
OldWEB's Avatar
 
Brand: Thor Motor Coach
State: England
Posts: 234
THOR #16471
Quote:
Originally Posted by Bob Denman View Post
So shore power is currently hooked to my surge protector. I would just have to slip the AutoFormer in front of the surge protector, so that shorepwer hooks into it first?
Myself, I will not become part of the problem.

__________________
OldWEB is offline   Reply With Quote
Old 09-18-2020, 11:44 PM   #37
Senior Member
 
Brand: Still Looking
Model: Newmar Bay Star Sport 300
State: Alabama
Posts: 2,626
THOR #6826
Quote:
Originally Posted by Bob Denman View Post
So shore power is currently hooked to my surge protector. I would just have to slip the AutoFormer in front of the surge protector, so that shorepwer hooks into it first?


Actually, I forgot, the autoformer contains a replaceable surge protector within it. It would be an EMS that you might want to add. I donít though.
__________________
Pete'sMH is offline   Reply With Quote
Old 09-19-2020, 12:17 AM   #38
I Think We're Lost!
 
Bob Denman's Avatar
 
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 16,233
THOR #8860
Now it sounds as if I'd be replacing the current onboard system...
I'd consider that.
__________________
Bob Denman is offline   Reply With Quote
Old 09-19-2020, 12:20 AM   #39
Senior Member
 
Brand: Keystone
Model: Sprinter
State: Florida
Posts: 1,150
THOR #15553
Quote:
Originally Posted by Bob Denman View Post
So shore power is currently hooked to my surge protector. I would just have to slip the AutoFormer in front of the surge protector, so that shorepwer hooks into it first?
PED, Autoformer, EMS.RV.
__________________
2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
cavie is offline   Reply With Quote
Old 09-19-2020, 12:56 AM   #40
Site Team
 
16ACE27's Avatar
 
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 5,042
THOR #7035
Quote:
Originally Posted by OldWEB View Post
Myself, I will not become part of the problem.

What problem would that be?
__________________

__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad
2020 Chevy Colorado Z71 Trail Runner Alternate Toad
16ACE27 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 09:00 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2
×