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Customer
2025-08-28 11:59:10
I purchased a home that was only six years old. The hvac system was improperly designed and installed. It is a zoned system with a HZ311 controller and a DATS sensor that was installed six inches from the coil (should have been three feet away, but the bypass and first zone were installed immediately after the coil and that was really the only place for it). The HZ311 is not programmable and the system short cycled (five minutes on, then off with a dats fault). I don’t know how the previous owner lived with that in the summer heat! Instead of redoing most of the ducting and moving the dats, I took a shortcut and bought this HZ322 which is programmable. I programmed the dats for 40 degrees as opposed to the set 45 on hz311. HVAC is running perfectly now! The previous owner had over $6k in receipts from repairs to the system that was still under warranty. They got taken for a ride. If you have a hz311 with an improperly installed dats and short cycling, this could be a very inexpensive and easy band-aid as opposed to a redesigned system.
Customer
2025-08-10 15:59:33
I was able to have this setup in 30 minutes
cosi
2025-08-04 14:16:33
It replaced my old board and it works fine.
Coyadad
2025-07-01 21:19:43
Easy installation (myself)Able to save big $$$.
Ben Miller
2025-04-08 18:35:32
Super easy to install!! The AC company quoted me 1200 to install but I did it in 10 minutes
Tim
2025-03-05 18:10:19
Works great. Had to replace my Durozone SMZ-SW because it was not compatible with my EcoBee4.
Scott
2025-02-05 16:36:06
I bought this to replace a 15 year old Honeywell zone controller that stopped working. Since the models had changed considerably, I called Honeywell customer service to figure out exactly which controller I needed. I was immediately connected to a person who quickly answered my question. Outstanding customer service. The seller (Heating & Cooling Parts) was quick, the unit rolled in about 48 hours after I placed the order, on a Sunday no less. Installation was pretty easy. Basically, you unplug the furnace (power to the controller) take the old unit down, mount this board with a couple screws and swap the wires over (take lots of pictures). I did have to extend one pair of wires due to a difference in layout between boards. I also had to program the new board to run two stage heating and cooling along with a couple other minor tweaks. The manual is decent and programming difficulty is about on par with changing the filter run times on a hot tub if you can relate to that. All in all, I was up and running in less than two hours. I saved a considerable amount of money replacing this unit myself; my AC's working again and I'm a happy camper.
Johnny Nix
2024-12-17 09:40:32
This unit was easy to install, easy to program.
Ben Rossignol
2024-12-06 15:27:59
Great to work with
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