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Old 08-12-2010, 02:07 PM   #1
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Dimmer for the tri-arm

Wondering if anyone has figured out a good way to install a dimmer in the tri-arm. It's bright and that is sometimes inconsistent with the desired mood.
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Old 08-12-2010, 03:21 PM   #2
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is this a reference to the dinette light fixture?

the 34 has a dimmer switch near the entry door (on the seat back) JUST for that purpose.

r u not finding this, did a/s drop this feature or is a "tri arm" something else.

cheers
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Old 08-12-2010, 04:32 PM   #3
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2air tri-arm would indeed be the same as the Dinnette Light Fixture.

Airstream having a policy of continuous improvement they look, of course, ever forward, never back. We therefore must presume, absent any evidence to the contrary, that the feature u mention was provided only on the once and future 34.

The Dinette Light Fixture with which my traylah is equipped has a push-button switch on the Dinette Light Fixture itself. Other than the breaker mounted under the Gaucho no other means have been provided for directing or controlling the flow of Coulombs to and from the Dinette Light Fixture.

Good thing the ceiling is low or I might have to pull on a String.
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Old 08-12-2010, 05:36 PM   #4
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interesting...

yes there's a fixture mounted switch,

but no on/off/dimmer 3 way (with LEDz in it) switch on the wall or near the door?

bummer!

i suspect they've got a whole box of this very module lay'n round the store or service center...

u might ping 'em and inquire...

the part # MIGHT BE...511474-02 for da'dimmer switch.

there is also a ON/OFF switch for the fixture, part # unknown.

they are mounted in various places in the 25s, 30s, 31s and 34s when used.

the 2 unlabeled holes in the upper/left of this image is the location in a 34.

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but some units had them on the wall or galley counter end panel.

cheers
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Old 08-12-2010, 05:45 PM   #5
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I, too, do not like the bright light in the dinnette. Since there was no dimmer on my 97 excella 30, I took mine out and put in a flourecsent. Heat was a factor, too.
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Old 08-13-2010, 01:50 PM   #6
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Quote:
Originally Posted by 2airishuman View Post
interesting...

yes there's a fixture mounted switch,

but no on/off/dimmer 3 way (with LEDz in it) switch on the wall or near the door?

bummer!

i suspect they've got a whole box of this very module lay'n round the store or service center...

u might ping 'em and inquire...

the part # MIGHT BE...511474-02 for da'dimmer switch.
Thanks, 2air.

I have a 2-gang switch on the galley end panel. One is the on/off rocker for the overhead fluorescent light in the ceiling between the galley and the gaucho. The other is a on-off-on rocker for the porch light and the step light. It seems to me that more wires arrive at that box than would seem necessary so I'll check and see whether the triarm light goes through there.
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Old 08-13-2010, 02:01 PM   #7
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...I have a 2-gang switch on the galley end panel. One is the on/off rocker for the overhead fluorescent light in the ceiling between the galley and the gaucho. The other is a on-off-on rocker for the porch light and the step light. It seems to me that more wires arrive at that box than would seem necessary so I'll check and see whether the triarm light goes through there.
yep the switches listed above are right along side the on/off/dimmer for the dinette overhead.

maybe they just forgot to cut the HOLE in the cabinetry department...

so the electrical guy couldn't reach the wires?



cheers
2air'
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Old 08-16-2010, 05:32 AM   #8
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I checked and no triarm wires in the panel on the end of the galley.

Apparently that train don't stop here any more.

It looks like there is a false bottom in the cupboard above the dinette and the triarm wires go between the two bottoms. I'm going to keep staring at it and see if some sensible way to mount a dimmer comes to mind.
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Old 11-23-2010, 09:38 PM   #9
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I have just replaced the wedge bulbs in the Dinette Light Fixture (DLF) (aka Tri-arm). The stock bulbs appear to have been C921, 18W, 12.8V, 1000 hour, 21 MSCP. I have replaced them with C912, 12.8W, 12.8V, 1000 hour, 12 MSCP. The difference, while subtle, is enough that the light is not overbearing while plugged into shore power.

The stock lights were fine on battery. A one-volt difference makes a substantial difference in light output.

I got the C912 lamps at an auto parts place. They are common.
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Old 11-24-2010, 09:10 AM   #10
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Jammer, I'd bet that if you could find one of the switches out of the "swivel Spots" over the couck, it would fit in the dinette "tri-arm". I check AS parts manual and only the lamp assembly is available. Maybe one of the boneyards might have a used lamp you could rob the switch out of.
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Old 11-24-2010, 09:47 AM   #11
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Quote:
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Jammer, I'd bet that if you could find one of the switches out of the "swivel Spots" over the couck, it would fit in the dinette "tri-arm". I check AS parts manual and only the lamp assembly is available. Maybe one of the boneyards might have a used lamp you could rob the switch out of.
Get some battery operated flickering votive lights and drop them into the shades of the tri-arm when it's off. You can find them at Bed Bath & Beyond, or at most dollar stores. With the frosted glass, they do look remarkably like real candles - you've got a candle light dinner!

Paula
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Old 11-24-2010, 09:48 AM   #12
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The PO of my trailer asked if I wanted to see how to dim the dinette lights. Of course I did, so he reached up with his left hand and took one of the light bulbs out. Instant dim. I've used this dimming method many times, but I use my right hand.

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Old 05-20-2014, 12:38 PM   #13
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Time flies. After more than 3 years, I have this solved.

Some time ago I got an Imtra dimmer from Sailboatstuff.com. With the stock C921 bulbs, the dinette fixtures draws over 60w when the converter is on, so the various smaller dimmers that are available, including the ones for the reading lights, won't work.

SailboatStuff, Imtra Marine Lighting Intervolt Switchmode Dimmers and Rotary DC Dimmers

The wiring for the dinette fixture is most readily accessible behind the false inner end panel on the roof locker nearest the 'fridge. I spliced the dimmer in at that point. There is enough space between the inner panel and the fridge bulkhead for the dimmer module.

I mounted the small control knob inside the roof locker to keep the mod simple. At some point I may move it to replace the push switch on the fixture itself, but this will involve fishing 3 small wires from the dimmer module to the fixture. This appears unlikely to be an easy task since the two existing wires bind when pulled.

Functionally, the dimmer works great. I have removed the lower-wattage bulbs I installed as an interim measure (see upthread) and replaced them with bulbs identical to stock.
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