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Topic: I give up, where are the valves? (Read 756 times) previous topic - next topic

I give up, where are the valves?

geeez. I am trying to search this site on my phone to no avail. I cannot frin the 3 valves that let me drain the plumbing. The manual says they're under the bed or between the froont seats but nooooo... so where are they on an '89 U280? Thanks!
Jay
1989 U280 SE, 36', 3208T Cat, build 3292

Re: I give up, where are the valves?

Reply #1 –
The ones on my '91 U300 are in the basement directly under the water heater. The descriptions in your post sound like the ones used on the U224/U240's.  My manual has some info on both the Oshkosh and the Unihome chassis.
John Fitzgerald
1991 U300 (SAI) Side Aisle Island Bed 40'
Detroit 6V92 with Allison Retarder
Meridian (Boise), Idaho

Re: I give up, where are the valves?

Reply #2 –
Ah ha.. well there's one, and it is draining the fresh tank so success, thanks again!
Jay
1989 U280 SE, 36', 3208T Cat, build 3292

Re: I give up, where are the valves?

Reply #3 –
In the middle between the seats on my 89 G/V is the valves,
There is some more under the Couch,
They have tags on them to tell you which do what,

You turn the valve on under the couch and one under the middle section between the seats, drains your tank, It also fills the tank,
Cheers,
Brian,

Toys, 1989 Grand Villa, 36 foot, ORED with 300 Hp Cat. 2002 Gemini 34 foot Sailing Catamaran, 2006 Honda Super Blackbird 1100XX, 2002 ZR7 750 Kawasaki,
25 HP Chinese tractor and Backhoe,

Re: I give up, where are the valves?

Reply #4 –
Well there sure are a lot of layout differences here! In any case the tank is empty and the liines are blown and if it gets as cold as they're advertising, it'll be ready for it. Meanwhile we lived in it for a couple days dryparked and it did everything we asked of it, keeping us warm and the food cold and the rain out. A good test for the planned Yellowstone trip. Note to self, we need to find better anticondensation solutions and we need a thermostat upgrade to stop the rear furnace from cyling every 15 minutes...
Jay
1989 U280 SE, 36', 3208T Cat, build 3292

Re: I give up, where are the valves?

Reply #5 –
Quote from: twobus –
Well there sure are a lot of layout differences here! In any case the tank is empty and the liines are blown and if it gets as cold as they're advertising, it'll be ready for it. Meanwhile we lived in it for a couple days dryparked and it did everything we asked of it, keeping us warm and the food cold and the rain out. A good test for the planned Yellowstone trip. Note to self, we need to find better anticondensation solutions and we need a thermostat upgrade to stop the rear furnace from cyling every 15 minutes...


Furnace cycling is part of the natural beauty of the bedroom propane furnace.  Too hot. Too cold.  Repeat
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: I give up, where are the valves?

Reply #6 –
Quote
Furnace cycling is part of the natural beauty of the bedroom propane furnace.  Too hot. Too cold.  Repeat

Agreed! First it blows cold air until it decides it has enough juice to blow hot air then it kicks on the heat and blows till it gets too hot and shuts down then blows air again (at least it's hot air this time) until it cools down then the furnace kicks in the heat again (rinse repeat until thermostat is happy) then it blows out the last of the hot air.

It's noisy, uncomfortable, annoying and well loved on a cold winters morn.

see ya
ken
The selected media item is not currently available.ken & dori hathaway & Big Agnes
🍺1992 U300 GrandVilla WTBI #4150 FOT FBP 2011
✨6V-92TA DDEC Parlor Coach 350HP Series 92
🏁2011 Nissan XTerra Pro-4X

Re: I give up, where are the valves?

Reply #7 –
The furnace in the bedroom also heats the water bay.  So, having it cycle a lot during a freezing night would be a good thing.
17 Degrees F last night, and my water still flows this morning.  After a couple nights, you get used to it, and it doesn't keep you
awake any more.
36' 1990 U280 GV

Re: I give up, where are the valves?

Reply #8 –
Quote from: twobus –
Well there sure are a lot of layout differences here! In any case the tank is empty and the liines are blown and if it gets as cold as they're advertising, it'll be ready for it. Meanwhile we lived in it for a couple days dryparked and it did everything we asked of it, keeping us warm and the food cold and the rain out. A good test for the planned Yellowstone trip. Note to self, we need to find better anticondensation solutions and we need a thermostat upgrade to stop the rear furnace from cyling every 15 minutes...
I replaced my original thermostats with digital units made by Hunter.  Needs to be a unit that has batteries.  I had to figure out which wires performed which function (A/C, Heat, A/C fan only, 12 volt power) and then translate into the connections on new thermostat.  The wire color charts that come with the new one are no help.  Thermostat was only $30 or so and commonly available from Target, Walmart, Lowes, or HD.  It's been years since I did it but it looks just like this one:  Hunter 42999 Just Right Digital Thermostat - Amazon.com  Newer units with programmability will work too.
We like it much better.  You can set it to the exact temp you want and not have to nudge it up and down all the time.  Our complaint with the old was not over cycling but too much temperature swing (what engineers refer to as hysteresis).
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John Fitzgerald
1991 U300 (SAI) Side Aisle Island Bed 40'
Detroit 6V92 with Allison Retarder
Meridian (Boise), Idaho

Re: I give up, where are the valves?

Reply #9 –
Quote from: kenhat –
Agreed! First it blows cold air until it decides it has enough juice to blow hot air then it kicks on the heat and blows till it gets too hot and shuts down then blows air again (at least it's hot air this time) until it cools down then the furnace kicks in the heat again (rinse repeat until thermostat is happy) then it blows out the last of the hot air.

It's noisy, uncomfortable, annoying and well loved on a cold winters morn.

see ya
ken

Its in the design to prevent a pocket of propane from causing a problem.

Plus in the old oreds the rear furnace was below the thermostat in the same cabinet and in the narrow hallway the air flow  accentuated the temp swings in my opinion.

The aqua hot temp swings are much less noticeable and quieter and the pre fan does not exist as does the after run on.

Still mine might benefit from a fan speed control knob
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: I give up, where are the valves?

Reply #10 –
On my U280 there are two drain valves in right side back of the same compartment that holds the batteries.. There is a third inside the large bay on the passenger side.. for that one there is a hand size hole on the bay wall just to your left and floor level when you open the bay door.
Dub McBride 1996 270
 

Re: I give up, where are the valves?

Reply #11 –
Bit of a tight squeeze getting a big hand in the hole for the 1 on the passenger side but you can do it... Our's being same Model  U280's.. I think you will find your 3 drains where I mentioned.
Dub McBride 1996 270