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Questions tagged [condensate]

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Need help with weird (?) wiring to thermostat and condensate pump

I've searched a lot and can't quite find what how to solve this one. I installed an ecobee smart thermostat, which didn't work with 5 wire connection so I switched to their PEK module with only 4 ...
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Hvac condensate line not draining, New ac system

Hi so I just purchased a house. It was a bank foreclosure. The bank installed a new ac unit. The ac wasn't running in day one. I figured out it was bc the condensate line wasn't draining properly. The ...
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split system air conditioner condensate hose

I need to buy and install a split AC and I have a small issue. The AC has two copper pipes for refrigerant gas to flow through and one hose to eliminate condensation water, and normally, the hose ...
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1answer
100 views

Two HVAC units on one condensate drain line

I am renting a house with two HVAC units - one upstairs and one downstairs. There were two condensate drain lines (one per unit). The units were older so when they quit working efficiently the ...
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1answer
64 views

Overflow line tied with Condensate Line

had a house inspection done and the inspector told that Irregular materials were used, I am attaching a pic. how much work is it to repair it? is it a easy fix? Thank you
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2answers
93 views

Why is there a drain trap high on a wall above an air gap?

I realize this question is not about "home" improvement but as I had to deal with drain and vent lines recently, I was curious to note this installation at the Costco. There is what it seems a ...
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1answer
305 views

Tankless water heater plumbing: neutralized condensate and pressure relief valve

Hello recently my old 50gal gas water heater developed a crack and started leaking. I replaced it with a tank-less gas heater. Everything is good, I installed the proper intake an exhaust with 3in ...
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2answers
291 views

Condensate drain line freezing. Need an internal solution

I have a residential 16-SEER four-ton air handler/heat pump unit with a built-in humidifier. Both summer AC condensate and winter humidifier over-run feed into a condensate pump which is on the ...
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27 views

How to get Condensate Pump to talk to Sonoff 4CH Pro R2

I currently have a WiFi water alarm triggering a Sonoff 4CH Pro R2 to kill my whole house humidifier. So I have some experience with triggering the relays and getting the two devices talking to each ...
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1answer
240 views

What kind of tubing should I use for draining condensate from a furnace / boiler?

"High efficiency" & condensing boilers or furnaces produce an acidic water byproduct called condensate that has to be drained away. My boiler has an outlet fitting for this condensate water but ...
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1answer
71 views

Not your normal A/C drain clogged question

My largest (I have 3) Central Air units in the attic as 2 drip condensation pipes coming out of the evaporator coil box. Not one that had an overflow opening that drips into the overflow pan. It has 2 ...