It shouldn't be that difficult. The tech can put a piece of panning across the old hole, And then cut the new hole into that
The wrong humidifier was installed on my system (heat pump & A/C). I have a horizontal furnace and a fan powered unit was installed. This was discovered thanks to the help on this forum. What should have been installed was bypass unit.
The fan unit has a 14.813" x 15.25" opening. The bypass unit has a 9.875" x 12.75" opening. Obviously, the hole in the plenum will need to be reduced to fit the bypass unit.
How should the HVAC technician reduce the size of the hole in plenum, which is a sheet metal box, and install the bypass unit? Will they be able to do it so that it does not leak? I am hoping that the entire supply plenum will not need to be replaced? What should I look for in the finished installation?
Thanks
Mike
It shouldn't be that difficult. The tech can put a piece of panning across the old hole, And then cut the new hole into that
I am a little gun shy on the techs from this vendor. Had I not bought the unit from him initially I would probably use someone else.
Would the patch just be installed with some sheet metal screws? How would it be sealed around the edges?
I have found what appears to the the solution to my problem. I am seriously considering the Honeywell HM512VPIAQ as the replacement rather than the bypass unit. It requires an even smaller hole (1-3/4") and hopefully it will make it easier to patch. I just hope the vendor is up to the task.
Thanks for the response.
Mike
Sounds like Mike cut the wrong size hole.
When you do a job, Always make it easier for the next guy, because you may be the next guy working on it.
I'd hope he uses heavier guage stock then panning.
But, yes a piece of flat sheet meatal can be used.
You would probably be better off with a steamer instead of just a bypass.
Actually a vendor installed a Carrier fan-powered humidifier on a horizontal plenum. Unfortunately, he did so without checking the specs closely enough to find out that it should not be installed. Hence, I have had blow back air coming out of the unit for the last 2 years. A post on this forum pointed out the problem.
Now I am trying to figure out the best solution for replacement.
Arggg...
Mike
Mastic and metal tape. That should do the job! Thanks all, it was exactly what I needed to know.
I am leaning toward the Honeywell HM512VPIAQ steam unit. It looks like it will just perfect for my situation.
Thanks
Mike