condensate problem

[blackwater]

Hello everyone... I have a 3 ton Carrier infinity heat pump system with electric heat backup. it is upflow. water is leaking into the return box. i believe i tried everything i can think of and im out of ideas. Hoping someone can see a different angle. i checked for a cracked pan, deeper trap, pitch, checked supply and return for restriction (all good), taped factory filter door.... its a variable speed air handler so i dont believe airflow is an issue... i have (2) 8 x 10 returns and an 8 x 24 return, i have (5) 8" supplies, (1) 7" supply and (2) 6" supplies. control tells me static pressure is .3 @ 1085cfm... supply duct is 8 x 22 return is 8 x 28... can anyone see anything im not from this... im hoping for some more thoughts and opinions.... a fresh perspective.... thank you!

[Rob_in_WV]

Have you made sure the condensate drain isn't clogged between the trap and outlet?

[blackwater]

yes, the system is brand new... the pump actually filled twice and ejected. drain was installed new yesterday. after the second ejection, water leaked in the box...

[meh70087]

The beat thing to do would be to let the installer fix your problem ! In the mean time try a "T" @ the outlet of the "p" trap anti siphon vent .

[blackwater]

there is a "tee" at the outlet of the trap...

[Rob_in_WV]

by pitch take it you mean from the pan to the pump? maybe the pan isn't level (IE: some water stands in a portion in the back and after a while accumulates enough to overflow the pan) But since its a new install I'd get the company that installed it to fix it and it shouldn't cost you a dime.

[hvac-learning]

Is the PVC pipe shoved into the pump to far/ 1/2 inch from the top should be good

[beenthere]

Duct work sounds small for 3 tons. Do an actual static test(use a manometer), instead of just reading the controller.