Need help on plumbing and wiring my Trane Air-handler...

[tlmartin84]

Picked up my air handler, I am getting ready to wire it up and plumb it for a heat pump.

A pro will be coming to add the refridgerant for the H/P at a later date. For now I am just trying to get all the wiring and plumbing in the walls and stubbed out so I can cover them up.

Some basic terminology questions:

What are the copper lines (1 insulated about 1" in diameter, the other about 1/4" that run from the unit to the H/P) called?

Electrical Questions:

My current home unit has 3-60 amp breakers (heat strips, A/H, and H/P). With the Trane I only see the need for two as the 10kW heat strips plug into the main harness for the Air Handler itself. Is that correct?

All I need to pull to from the box to the Air handler is 10-2?
Box to H/P 10-2?


Thermostat Wires:

Pull thermostat wires from the H/P to the A/H, and from the thermostat to the A/H?

Also on that, my home unit has a central "honeywell" box that all the wires feed into, some type of circuit board, is that necessary?

 

[sms1974]

more info would make this easier....

as for refrigerant lines your probably going to run a 3/4 insulated and a 3/8 non-insulated copper line set.

electrical service, again more info would be helpful but... if its a new air handler you should have one or two circuit breakers. you will need to supply them with a circuit that matches there rating. thermostat wiring your good with an 8 conductor from each HP to AH to T-stat

 

[mygarageone]

are you intending to do the copper connections your self ? Hope not unless you know what your doing .

 

[tlmartin84]

No, I won't be doing any connections. I just want to pull the lines.

 

[tlmartin84]

What type of information do you need? Model Numbers?

 

[Champ128]

Your copper lines are called a lineset. Read through the manual. Typically your liquid line (smaller line) is uninsulated but if you exceed certain lengths most manufacturers suggest insulating it as well. The electrical question would need more info to answer. You would need to determine the units amperage needs and length to say if 10-2 is acceptable. The Honeywell box will not be needed.

 

[LS6 Tommy]

Locations of A/H and H/P dictate how the line set is run. If the H/P is above the A/H enough, you may need a trap in the suction line to aid oil return. Check the imstallation instructions for details.

Tommy

 

[slice]

Sorry dude. But what you need is a person who knows his stuff just to install and get ready. Too many unknowns for you and I am sure you don't want to screw it up. As a retired hvac owner. I have seen it all.

 

[Highbeam]

You won't be powering a 10kw load through a 10/2. Your wire size needs to be much larger.

 

[Stuart in MN]

Without a model number for the Trane unit, it's difficult to provide advice. They have wiring diagrams on their website: http://www.trane.com/Index.aspx Sometimes they are a little hard to find, but dig around there for a while and you should be able to find the correct diagram for you unit.

 

[tlmartin84]

Model Number 4TEC3F30B1000AA, 1/3 HP, 2.1 FL Amps, 200-230V

 

[tlmartin84]

View media item 51103
There is the Tag. The heat unit alone draws 40 Amps (BAYHTR1410+++).

Like I said in the earlier statement "my current home unit" has several 10-2 leads into it. There were several breakers in the home unit (1 for the heat, one for the air handler).

This one here is a complete different setup. The heat strip just pigtails into a harness on the handler, I am not seeing any place for more than one lead in.