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05-09-2022, 12:51 PM
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#1
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New Member
Join Date: Apr 2022
Location: keswick
Posts: 6
M.O.C. #30795
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Humidistat add on
I am new to the RV world.
Are you able to install a humidistat is the term I think, to the air conditioner controls to adjust for humidity.
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05-09-2022, 06:05 PM
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#2
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,658
M.O.C. #9969
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Yes you can as our Florida neighbors have one on theirs since they leave their Monty in Florida during the Summer.
__________________
Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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05-10-2022, 05:55 AM
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#3
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New Member
Join Date: Apr 2022
Location: keswick
Posts: 6
M.O.C. #30795
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We only had 12 days before we left for home so I could research it.
We left ours in Fort Myers for the summer.
Anyone who has pictures, DIY, and what to buy would be helpful.
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06-04-2022, 03:27 PM
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#4
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New Member
Join Date: Nov 2021
Location: Sebring
Posts: 2
M.O.C. #30086
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Quote:
Originally Posted by wrhfinancial
I am new to the RV world.
Are you able to install a humidistat is the term I think, to the air conditioner controls to adjust for humidity.
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Who is the humidistat maker? Also what is the model of the a/c?
I have a 2022 Monty 3813ms.
Thanks...Charlie
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06-04-2022, 03:55 PM
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#5
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 2,952
M.O.C. #5651
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Does a humidistat add moisture? Wouldn't you want a dehumidifier in Florida? Just curious.
__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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06-04-2022, 04:37 PM
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#6
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New Member
Join Date: Nov 2021
Location: Sebring
Posts: 2
M.O.C. #30086
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A humidistat controls the thermostat. For example, if the humidistat is set for 70% humidity and the humidity is above 70% it turns on the thermostat to satisfy its setting to cool down the interior else it keeps the thermostat off. The cooling process dehumidifies (removes moisture) from the area until it reaches the thermostat setting. This info was from a residential house.
The thermostat was set at 85 degrees and can easily attain 90+ when the humidistat is below 70% (dryer). This saves a lot of $
I have not installed a humidistat in my 2022 Monty 3813MS yet. Am waiting for info from Keystone for the correct humidistat for the Mach15 air conditioner.
Will post the results later.
You should make Keystone inquiries for your Monty model. It is possible to mismatch voltages. Ac/Dc Please post any info.
Thanks Charlie
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06-05-2022, 06:46 AM
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#7
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New Member
Join Date: Apr 2022
Location: keswick
Posts: 6
M.O.C. #30795
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Quote:
Originally Posted by charlieSusie3739
Who is the humidistat maker? Also what is the model of the a/c?
I have a 2022 Monty 3813ms.
Thanks...Charlie
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I don't know the model of the A/C.
I will have to wait till I get back to Florida and look.
You made a good point of contacting the manufacturer so I am going
ask them the question.
Wayne
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06-05-2022, 10:25 AM
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#8
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,219
M.O.C. #30417
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https://www.amazon.com/TCL-Portable-...a-904210994785
And you can program it to the humidity level you want.
__________________
Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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06-05-2022, 01:21 PM
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#9
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Montana Fan
Join Date: Feb 2022
Location: Cynthiana
Posts: 199
M.O.C. #30449
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I believe a dehumidistat is what you're looking for. A Honeywell "True IAQ" is a device that control a humidifier, dehumidifier, and ventilation system. These require 24volts AC to operate and would not work on an RV.
There are residential thermostats on the market that have a humidity control feature. If you don't have a separate dehumidifier, it just allows the AC to overshoot it's set point by up to 3 degrees. To dehumidify with an air conditioner, it has to be running. Some of the higher end residential variable speed model air conditioners go into a dehumidify mode when there is no cooling call. They slow the compressor, refrigerant flow, and blower to a very low speed. This keeps the evaporator coil wet and the efficiency high. RV air conditioners don't operate like this.
A portable dehumidifier has a storage tank that requires emptying periodically. The only way to make this a long term solution would be attach a length of garden hose and gravity drain it to the outside. Even at that if the hose became clogged you would likely end up having the water back up and spill out into the coach.
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06-06-2022, 07:52 AM
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#10
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,219
M.O.C. #30417
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Quote:
Originally Posted by Bourbon County
I believe a dehumidistat is what you're looking for. A Honeywell "True IAQ" is a device that control a humidifier, dehumidifier, and ventilation system. These require 24volts AC to operate and would not work on an RV.
There are residential thermostats on the market that have a humidity control feature. If you don't have a separate dehumidifier, it just allows the AC to overshoot it's set point by up to 3 degrees. To dehumidify with an air conditioner, it has to be running. Some of the higher end residential variable speed model air conditioners go into a dehumidify mode when there is no cooling call. They slow the compressor, refrigerant flow, and blower to a very low speed. This keeps the evaporator coil wet and the efficiency high. RV air conditioners don't operate like this.
A portable dehumidifier has a storage tank that requires emptying periodically. The only way to make this a long term solution would be attach a length of garden hose and gravity drain it to the outside. Even at that if the hose became clogged you would likely end up having the water back up and spill out into the coach.
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Actually the dehumidifier shuts off when the holding tank get full.
__________________
Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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