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Local climate. According to the California Energy Commission, for my zip code the 0.6% design dry bulb is 37F, the 0.2% design dry bulb is 35F. The "Winter Median of Extremes" is 31F. Rarely if...

Area is unincorporated Los Angeles County, no local city, and the county Building & Safety office just references the California State Uniform Mechanical Code. The state code doesn't get specific...

Here's a picture of the ductopus's supply plenum. You're seeing the entire length of the plenum, it terminates right after the branch ducts come off....

Long phone chat with installer this morning. This is the standard setup he's hit upon and been using on all his installs for past 15 years.

On the ICP coils, the secondary drain elevation is only...

Heard from installer this morning, he says they have had issues with "blowby" when they run the secondary condensate drain from the coil horizontally and then down into the pan. Hence the vertical...

In addition to the primary and secondary condensate drains on the coil case, this furnace/air handler has a condensate trap on the collector box, the output of which is teed into the coil case...

OK, thanks to all for comments. I have called the installer and emailed the pics to him, so we'll wait and see what he says.

I went up to check the backup pan after we had new R30 cellulose...

Hi,

I posted earlier today and got a model number wrong on an old unit I had replaced. How do I edit the post to correct the model number?

thanks.

New horizontal attic install last week, ICP/Tempstar F9MVT 120k 2-stage 96% furnace and TSA6 5-ton 16 SEER compressor put in by local outfit. Coil is matched ENH4X60C, thermostat is new "Observer"...