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Old 05-02-2007, 04:48 AM   #1
Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
Wanna go on a service call with me?????

Ok, we will head out to my service call, last night my customer called me and said that they could smell raw (natural) gas, I'm about 45 minutes away, an OT call just to shut off the gas would have cost them around $275.00, maybe more. They have been a customer of mine, (a handful I still have) for 25 years or so, so, I told them to call the gas company, wouldn't cost them anything, besides it could have been a real fire and explosion hazard.
They called me later and said it was a gas valve leak, the gas co. shut off the gas to the duct heater, I said I would be there in the morning.
I had a gas valve, thermocouple and aluminum pilot gas lines with me, got to the Antique Mall and checked out the unit.
This mall is very very large, it has 18 split systems,(like your home) duct heaters, furnaces and so on, all the inside equipment
is in the attic and crawl spaces; yuck.. a real maze.
I got the gas valve changed out, had to take the duct furnace apart and work on it, a real mess, no room, kept bumping my head, had to get a space cleared, mouse droppings, insulation used by the meeces all chewed up and piled under the ducting. I laid out my towels and worked like a mole under there. Got her done, have some pictures for you. The wiring is a mess for the equipment, a real puzzle everytime I work on something there.
At one time in the past, they put in an 'energy saving' system, time clocks, miles of wire to every piece of equipment, extra relays and controls, a real head scratch-er.
Well we are done, wanna have lunch? Ozz
Here's the pictures:
MRA Gas duct heater

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Old 05-02-2007, 06:16 AM   #2
Montana Master
Join Date: Sep 2003
Location: Sunshine
Posts: 1,445
M.O.C. #538
Ozz: Did they remember to cut all the zip ties so they would cut your arms. A little blood will always make the bill higher. LOL
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Old 05-02-2007, 07:23 AM   #3
Montana Master
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Location: K.C.
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M.O.C. #5980
Ha! yes, they always cut them on a diagonal; whazzup with that???
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Old 05-02-2007, 03:54 PM   #4
Seasoned Camper
Join Date: Jan 2007
Location: Royal
Posts: 66
M.O.C. #6706
Ozz, didn,t see any pools of sweat. Must not have been 98 with 100% humidity. Been there done that, don't want anymore. Looks like the heat exchanger is on it's way out. I know, another service call. hehehehehe
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Old 05-03-2007, 03:22 AM   #5
Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
I was on the phone yesterday with a company that makes custom copper evaporator coils, I need to start changing out some old Chrysler Airtemp evap coils, all of them 15 tons. Chrysler has been out of business for years and years, so I have to get them made for the units.
I did one a few years ago, man what a job, they are actually two 7.5 ton coils joined together in a slab with two TXV's and a distribution copper tube system.
You can see the bottlom coils tube turns showing rust, there are hundreds of teeny holes there slowly leaking. You can't repair them the tubing is so thin because of moisture, corrosion and dielectric conversion.
The fan motors are a challenge to change out as well, gravity is not my friend there...
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Old 05-04-2007, 01:05 PM   #6
Montana Master
Join Date: Jan 2006
Location: South
Posts: 2,499
M.O.C. #5140
How 'bout an electric fan (Wally World for $9.88) and a bucket of ice ($1.00), and installation (prieless).
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Old 05-05-2007, 02:38 AM   #7
Tom Gina 06
Montana Fan
Join Date: Jul 2006
Location: Denton
Posts: 376
M.O.C. #5993
Jim just think you are semi retired? Makes you want to chuck the whole thing doesn't it?

Michael, That thar is funny now.....

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