Firstly, I hope this is in the correct forum. If not, plz move it, or alert me and I'll delete it and repost it in the forum specified.
I had a ground source heat pump installed this summer, using a Lennox 95% efficient furnace as a backup/air handler for the 4 ton Waterfurnace Split. The split and furnace are controlled by a Honeywell TH8000 AIQ stat, with a remote temp sensor mounted outside the house.
When the system was installed, I was told that the stat would control the installed equipment, AND a humidifier and a venmar 4100 ventilator. I'm looking into getting the Venmar operational, and now I am being told by my Geothermal contractor's tech. that the Venmar needs to be controlled by the supplied Venmar control, and that it can't be controlled by my Honeywell stat.
Supposedly, this is because the venmar control allows for the unit to be set to stop the exchange of inside/outside air if the temps get too cold in winter or hot in summer, and the Honeywell stat doesn't have the ability to control the Venmar in this manner. The supplied venmar control does. (this is a 4 wire control).
Assuming my question is clearly stated, does this sound correct to the informed sources on this board? My impression is that the Venmar 4100 is new enough that not many people have them in an installation using GEO split systems with a Honeywell IAQ stat.