A tempstar goodman mix and match.

[jimmyed]

I think the furnace was 5 years old, new. New goodman coil and ac, for a pole barn work shop. Got the ac and coil for a bargain. Glad we don't put goodman stuff in daily. Did a great job with the coil supports. Wow what a piece of crap.

Customer is supposed to make his own supply plenum? We supplied the filter box and grills.

[subzerocool]

No water trap or tee

[trouble time]

No trap in the condensate line for the A/C. No equalizing T in the condensate line for the furnace. Correct me if I am wrong but, when using concentric venting does not the air inlet have to be in the 6 a-clock position. Any that I have installed have said that in the installation instructions......
Other that the mentioned items it looks really neat and clean install.

[BaldLoonie]

We don't trap our positive pressure A/C drains either.

Drip leg should be where the line changes direction, not doing much good where it is.

I gandered at the I/O manual for a Rheem 90. They show the intake at the bottom but don't have it in the text anywhere to do it that way. We only use them going through a roof so don't know beyond that.

[jimmyed]

I have never look at the instructions for a concentric. On a sidewall I know the cone should be no more than an inch from the wall. We often cut them down shorter in a sidewall application. . In this instance, this one worked out better left long.

No trap needed. Furnace has a trap inside.

[trouble time]

I have never look at the instructions for a concentric. On a sidewall I know the cone should be no more than an inch from the wall. We often cut them down shorter in a sidewall application. . In this instance, this one worked out better left long.

No trap needed. Furnace has a trap inside.

It is not the trap on the furnace that is needed, most are internal, but you do need to equalize that line by putting a tee in it as it leaves the furnace one side of which is open to atmosphere. This prevents the positive pressure from the supply plenum, pressurizing the furnace's trap, preventing it from draining during operation.

[cckbinc]

isnt your return to close to the ground for a garage/ shop if cars in there running you will be sucking in co2

[SBKold]

Hey man you do good work.

Im curious why you changed from 2" to 3" pipe on the exhaust/intake. Id just like to learn when to use what size PVC.

[cckbinc]

The size of pvc is determined by each indivual piece of equiptment. Butfr me I prefer 3all the time cause u kno u r right then