 3 edits | You won't snag them if you go slow and watch what you are doing. it might not even have traditional cap tubes. could have orifice or bullet metering. You will get to see the exact size of coil access slide you need after you get an 8x8 or so access to start out.
After if you want to secure the sheet metal coil access slide at the "pull' end with a metal screw(s) make a careful note and mark a "clear" area, free of tubing so you can install a sms screw or two. this prevents excess air loss or rattles -- Southern Ontario,Canada |
 tp0dyabbazooiePremium join:2001-02-13 Carnegie, PA kudos:2 1 edit | forgot to tell you how to open the plenum, doh!
There are slide fittings on the corners of the duct that should come off, or possibly compression fit joints that push together. These will come apart with a little time. Usually the coil is put in after the plenum is set on the furnace, or if you have a better A coil, some come preboxed, and there will be a few 1/4" screws to remove the front panel. If its 22yrs old, thats prolly not the case.
Definitely try to remove the panel with the coil protrusion before cutting. If you do the dremel method, you could cut thru a copper tube inside without knowing, and yer f*cked
-j -- if it aint broke, tweak it!! currently on FiOS (kick aZZ!) |