Dual Zoning a G61MPV/XC14

[drhaller]

Hi,

We just had a new Lennox G61MPV/XC14 along with a PureAir and an HRV installed during a big remodel. Brand new main trunking was installed and split to accomodate two zones. Existing vertical ducts to rooms were kept.

1) Finished Basement (~1200 sq ft) and
2) Main/2nd floor (~1800 sq ft)

Both trunks are 6"x16" and accessible. We just have one main t-stat installed now (main floor) which is a Honeywell TH6000.

We have a quote that seems quite high for configuring 2-zones. There is no parts list so I don't know what they would use.

I am thinking that 2 dampers, a zone controller and a second t-stat is all that is required along with a bit of wire. Is this a DIY job?

/dan

[beenthere]

No, not a DIY job.

Not if you want the HRV to work with the furnace.

[drhaller]

Thanks "beenthere".

Should I insist on a Harmony III controller?

Are there any specific dampers that have better reliability that I should insist on?

I just have a quote for a price for zoning with no details. This was fine for the HRV and the PureAir options since I knew what the equipment was but for the "zoning" I have no idea what they had planned.

BTW, my HRV may not be wired correctly in the first place.

/dan

[beenthere]

You may want to upgrade to the harmony.

But, you need to tell them that you want everything to work like the install manuals say it should work. Which means the have to double check what is compatible with what. And then wire them the way the install manuals say.

Not all equipment is designed to play nicely with all other equipment.

[t527ed]

G61MPV is great for zoning, plays very nice with the Harmony controls.

XC14 was a poor choice for a system you wanted to zone. if zones don't allow enough air flow it will constantly be cycling on the discharge air sensor.

[drhaller]

What would have been a better choice? Only the inside coils have been installed not the evaporator (still had too much snow 2 weeks ago). Might be changable at this point.

/dan

[beenthere]

The inside coils are the evap coils of an A/C.

[tedkidd]

Is xc14 a single stage heat pump? Probably 2 stage with low sized for air flow of your smallest zone will fit the bill.

527 or bt?

[beenthere]

XC14 is a single stage A/C.
XC16 is a 2 stage A/C.
XP14 is a single stage HP.
XP16 is a 2 stage HP.

[t527ed]

if zoning you would be much better off to go with one of the 2 stage outdoor units.