Carrier Furnace Service Manual Model 58mxa060
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I recently purchased a house with a Carrier WeatherMaker 9200 Ultra Efficient furnace. Both the exhaust and air intake pvc pipes run together up the same chimney flue. I have multiple questions about this arrangement and changes I'd like to make.I've been told that my wood burning fireplace, using the same chimney but different flue, is not to be used because of the furnace venting (assuming that comment refers to the possiblity of the intake sucking in smoke/etc from the burning fireplace?) -With that in mind, I'd like to remove the air intake pvc pipe and simply allow the furnace to draw it's air intake from the basement. The furnace shares an approximately 12x15 room with an older water heater that vents with galvanized pipe thru a third flue in the chimney. The only other itmes in the room are the gas meter and the water meter. This room also has a louvered door leading to the rest of the basement.
Would this be an acceptable solution? -Is it safe/correct to have just the exhaust left in the chimeny and use my wood burning fireplace? Also, is it possible to download from somewhere the installation instructions for my Carrier furnace? So far, all I've found is owner's manuals. 've attached a picture of the top of my chimney. House was built in 1957. Current Carrier WeatherMaker furnace model 58MXA060-12 and A/C model 38TXA030300 was installed in 2000.
There are four clay flues in one chimney. From left to right they are.non-HF water heater/unused/fireplace/furnace intake and exhaust.
I'm not going to use the fireplace until I make changes, so I'm trying to decide what changes to make. In the photo of the bottom of my chimney you'll see a square vent in the wall. This is a fresh air intake that runs thru duct pipe straight into the plenum above the furnace. It is currently closed via a damper. That is my driveway that runs along the house.
The chimney is on the end of the house. The third picture shows the area just round the corner to the back of the house where the A/C unit is. The last photo shows the setup in the furnace room.
Ideally, I'd like to leave the exhaust in the chimney flue (where it currently is, maybe shortening the pipe). And ideally I'd like to have the fresh air intake not run to the outside. I've read enough to know what the 'perfect' answer is (run both pipes to the back of the house near the A/C unit), but what other options are also safe/good considering my circumstances? Standing on my head to look at the chimney photo hurts a little. Can't really tell from the pic but they might be able to lower the air intake pipe so it is a little lower than the fireplace flue. You never want to use indoor air for combustion on a 90%+ furnace.
Contaminents in household air going through a flame and then condensed into a liquid can be very corrosive to the secondary heat exchanger. Some furnace companies allow the use of indoor air but we never have and never will install one that way.
I'm willing to run the intake to the outside if that's what I need to do. I was just hoping that wouldn't be necessary, but it looks like it is. I'd like to attach pvc to the back of that metal louver to the right of the chimney for the intake.
Do you guys see any problem with that? Without the installation instructions, I'm not certain what the distances should be between the intake/exhaust and the exhaust to doors/windows. Also, how far off the ground/driveway should they both be? I've done this type of work before when I installed a high efficiency water heater in my last house, so I'm not concerned about being able to do the work. I'm always trying to be very aware of doing things correctly though.
Thanks in advance for your help. 've attached a picture of the top of my chimney. House was built in 1957.
Carrier Furnace
Current Carrier WeatherMaker furnace model 58MXA060-12 and A/C model 38TXA030300 was installed in 2000. There are four clay flues in one chimney. From left to right they are.non-HF water heater/unused/fireplace/furnace intake and exhaust. I'm not going to use the fireplace until I make changes, so I'm trying to decide what changes to make. In the photo of the bottom of my chimney you'll see a square vent in the wall.
This is a fresh air intake that runs thru duct pipe straight into the plenum above the furnace. It is currently closed via a damper. That is my driveway that runs along the house.
The chimney is on the end of the house. The third picture shows the area just round the corner to the back of the house where the A/C unit is. The last photo shows the setup in the furnace room. Ideally, I'd like to leave the exhaust in the chimney flue (where it currently is, maybe shortening the pipe). And ideally I'd like to have the fresh air intake not run to the outside. I've read enough to know what the 'perfect' answer is (run both pipes to the back of the house near the A/C unit), but what other options are also safe/good considering my circumstances?Looking ast the last picture I can't help but wonder how you would check the furnace if something went wrong.Even on the best equipment an ignitor or gas valve might go bad or even a blower motor.
How would you addresss those problems???? Has anyone told you why you have an outside air intake.That seems a little strange to me. As far as finding an install manuel,check with a Carrier dealer.I'm sure they will have one in a file or something where you can use a copy machine on. Any idea how to get an installation manual? I've looked online but had no luck.Here's what I'd do, but keep in mind that any of this work needs to be done by a professional that you trust. Contact the company that installed it and ask for it.
Call the manufacturer and ask them for one. Find some distributors of that mfg and call them, try asking for their tech support guy or their Distributions Services Coordinator.
Carrier Furnace Service Manual
It may be beneficial to explain that you did not get it when it was installed and that if #1 from above failed that the installing company wont provide it, and explain that you need to verify how this system can use a pre-existing chimney for venting.