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- rcpd34Explorer
TexasChaps wrote:
I installed a residential control for the air conditioning.
The standard controls on the EL-cheapo Coleman unit installed in my MXT-20 leave a lot to be desired. basically a very simple mechanical thermostat and a simple switch to select fan, heat or cool.. so I decided to replace the controls with what is basically a residential control system. This takes the form of a 24 VAC transformer, a number of relays and a residential control.. just like the one in your house. I also designed and linked in a control panel to switch the generator from econ mode to full power when boon-docking.. we do that a lot and this mod delays the fan and compressor load. basically it does the following:
1. switches generator from econ mode to full power
2. waits five seconds
3. activates fan relay
4. waits another five seconds
5. activates compressor relay
6. holds generator at full power for another 5 seconds
7. switches generator back to econ mode
Pros:
1. sequenced load on generator ( no sudden shock loads )
2. full and precise control of temperature
3. auto switch over from heating and cooling.
4. fan cycling if required ( on 5 min off 10 or whatever )
5. reduced fuel consumption
6. the most important.. compressor protection.. compressor will only cycle now after 5 min or so..
Cons:
1. not sure ??.. perhaps you gentlemen care to comment ??
oh.. and to quell the doomers.. I have degrees in mechanical and electrical engineering.. so I do have some competence here... LOL
I did this mod on my WW, but without the relays. I just took a digital residential thermostat and replaced the junk factory one, it already had built-in compressor protection which didn't allow it to kick on/off. I did have to buy a micro switch to give me the two speed fan control. I found the directions on this site from another member who figured out the pin out. Worked well. I'll probably do this same mod on my current camper at some point. - bigg-limoExplorerI loaded my buddy's RZR 4 XP into my Fuzion 399 to go to Glamis this weekend. The 14' garage makes loading a full size SxS no problem.
- TexasChapsExplorerI installed a residential control for the air conditioning.
The standard controls on the EL-cheapo Coleman unit installed in my MXT-20 leave a lot to be desired. basically a very simple mechanical thermostat and a simple switch to select fan, heat or cool.. so I decided to replace the controls with what is basically a residential control system. This takes the form of a 24 VAC transformer, a number of relays and a residential control.. just like the one in your house. I also designed and linked in a control panel to switch the generator from econ mode to full power when boon-docking.. we do that a lot and this mod delays the fan and compressor load. basically it does the following:
1. switches generator from econ mode to full power
2. waits five seconds
3. activates fan relay
4. waits another five seconds
5. activates compressor relay
6. holds generator at full power for another 5 seconds
7. switches generator back to econ mode
Pros:
1. sequenced load on generator ( no sudden shock loads )
2. full and precise control of temperature
3. auto switch over from heating and cooling.
4. fan cycling if required ( on 5 min off 10 or whatever )
5. reduced fuel consumption
6. the most important.. compressor protection.. compressor will only cycle now after 5 min or so..
Cons:
1. not sure ??.. perhaps you gentlemen care to comment ??
oh.. and to quell the doomers.. I have degrees in mechanical and electrical engineering.. so I do have some competence here... LOL - SkippysPadExplorerWe Bought one. The 2011 Coachmen 295RLDS is sold and the 2015 KZ MXT 303 should be delivered the first week of May.
Let the good times roll. - rcpd34ExplorerDo these use the same footprint as the standard locks or did you need to cut the door?
- fj12ryderExplorer IIIOne nice thing: if the keypad malfunctions it won't be a problem to bypass it and get in with a medium sized screwdriver. :)
- TRazzoExplorer
azdryheat wrote:
Re-sealed the shower and installed a remote, wireless keyboard for my RVLOCK on the front door.
Do you have details on that lock system, that sounds awesome!
Tony - azdryheatExplorerRe-sealed the shower and installed a remote, wireless keyboard for my RVLOCK on the front door.
- joedirtExplorer IIinstalled a new water heater and did the bypass at the same time

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