Wiring of a Two-Stage Heat Pump

[btarb]

Excellent video. Curious, is it feasible to omit the 2nd stage cooling wire on a 2 stage heat pump to get more heat capacity? example.. manJ heat=53k and cool is 29k. Using a two stage 4 ton unit would get me most of the heat and be only a about 15% oversized for cooling that's limited to the 70% stage 1.

[noahoyeah]

I found wiring w2 from ahu fwm4p3600a on L terminal on old sn12i thermostat. Why did they do it this way? Newbie here and just looking for answers. Thanks

[Brad.W]

So what about thermostats like the communicating American Standard Platinum ACCULINK 1050 that only has B R D Terminals (i have plans for zoning to be added come spring time so needed a thermo that can control zones through a zone relay all of which will be added in May 2023) that is connected to an American Standard relay panel to a tem6 non-communicating American Standard 5 ton air handler and two stage Gold 17 American Standard heat pump? I haven't installed that apparently doesn't know what they're doing and for two days for the life of them cannot get emergency or auxiliary heat to work.

[xrayneoo]

on a single stage heat pump with only 4 wires thermostat, can you jump the thermostat, blower board and defrost board like y/o, w/b an r/rh with no common when you can"t run additional wires?

[russells]

I'm not an HVAC tech, but I'm pretty sure he leaves out that this requires a special "heat pump thermostat" Otherwise when the thermostat requests heat, Y1 and/or Y2 will not activate and your heat pump condenser will never go.

[kinggenius]

Just a suggestion? If you stand away from the wiring diagram for a little bit longer it would be much easier for someone to take a screenshot. Thank you for making videos!

[twitter.comfixwifi]

Instead of having a Y 2 connected to my A S 4TWB3060B1000CA heat pump. I have a W 1, W 2, and Y 1 coming from the thermostat and go to the heat pump. Maybe I have a 2 stage, heat pump, before I temporarily disconnected the W 2 wire seems like it may been putting out more heat?

[mikevi]

where does the "B" wire go if it was used on the old thermostat ? if O is used for O/B

[gulopac]

great video, very well explained, the only thing I believe the wiring from the outdoor thermostat is backwards,

[kellyrodgers]

What is the L terminal for on a Goodman 2 stage AC on my outside unit its right between O and Y2

[CJM]

if you are going from a single stage heat pump to a two stage heat pump do do have to run extra wire to your thermostat?

[johnbipper]

This doesnt work with ruud with two blue wires and a purple and no orange on the outdoor unit.

[magnumforceoutdoors]

what does an X wire do and why does the new thermostat say not to hook it up? its on a heat pump unit.

[albertbracey]

Can anyone help me. I have paid twice to fix my heatpump unit, which is a York 2ton.everyone said themostat.because it was blowing the fuse on the low side.well changed it and still no heat.the unit runs on the airhead side but blows cold heat, the ac runs on ac, but not heat

[phillipalv]

If your a technician you know what he’s trying to explain even though some of the wiring is wrong.

[EddieSportRoberts]

Do anyone know how i can limit my aux heater from coming on?
Senville 12, 000 and 18, 000 Btu Aura series. I think they are made by Mitsibishi.

[dh]

Way to not even annotate that you either explained it wrong or your diagram is wrong. You should take this video down and fix it. Very unprofessional IMO.