Honeywell AQ2000 anyone try it ??

MIke_Jonas

When it first came out. Looks nice, seems right, but I can't find anyway to run at least one circ on constant circulation, with dhw. If there is a way to do this on that control, and still keep dhw priority, I'll buy it, several times over. How hard would it be to have a micro switch for (1) circ to be constant, and shut it off during dhw? If it has this feature, show me where it is. If it does not have this feature, why not? Maybe I'm spoiled because I use the Buderus 2107, which has most of the controls I need for the installs in my area, which are mostly old gravity systems with ci radiators or baseboard systems.

ScottMP

I saw this for the first time

at the Mass PHCC trade show this weekend.

Looks like a very nice control and very simple easy to use.

I think I will try it on our next good size job. Priority for DHWH, mixing valve or injection, multilpy zones, set back for each zone, outdoor re-set and much more.

Anyone have any imput ?

Scott

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Glenn Sossin_2

Bill W@Honeywell

Thanks for the kind words...

When you decide which job you'll be using it on, drop me an email, and I will get you an estimating CD that automatically fills in what you need to order, and also prints wiring & piping diagrams. Available with or without OA reset, easy to wire, lotsa goodies. You will like this control

Robert O'Brien

Scott

I have 2 in the field,one with a Vitorond 100 the other with a B10-3 Biasi.Zero problems,both owners are very happy with them.I'm installing one on a steel boiler in a 3 family in the next few weeks.

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Tim_41

AQ

installed 4 late last year with 2 vitoronds a w/m and a biasi. They are very easy to install. Constant circ would be nice. The t-stats are nice also. A good pkg.

ScottMP

Thanks for the offer

Bill, I will certainly take you up on that.

Is the problem with Constant Circ that the priority always over rides it ? So an individual realy is needed for that one zone ? The control would still provide water at the reset temp correct ?

Scott

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Bill W@Honeywell

Constant circ questions

Drop me an email "off the Wall". Thanks.

Home Depot Employee

Think twice

I had the simple 4 zone panel and was using circs.

I didn’t care for the fact that you must use their compatible system stats rendering my nice Visionpros useless and lost the setback, clock, nitelite, AC control that I gave up to install panel. As their instructions are vague (at least they were) and the fact that my H/W rep said that standard stats were compatible, I installed panel and all wiring before finding out truth.

Being that I was selling house, I quickly spent the money on 3 stats, installed and walked away.

If I was a contractor today, not sure I would use in most instances, even the better unit with setback. It's difficult enough today to get people to understand or give up their existing programmable stats, try pulling them and convincing them they have to learn a new way at the control board in their basement.

On the plus side, it was nice having contacts on the board for a system circ that was activated by any zones call for heat. (That was why I originally chose to use the panel).
I wanted to clean up the controls before putting house on market.

In either case, I brought the Visionpros with me, have two in operation and 1 spare, can I call it a wash?

Bill W@Honeywell

Sorry you didn't get the correct info.

The message has been that the 2-wire, polarity insenstive heat only stats that are made for this control are the only ones that should be used with it. You CAN use any standard stat in an emergency, but that's all. All setback programming is done on the unit if you are using the reset module. Heat/cool capable stats are coming very soon.

It was never intended for VisionPro or FocusPro to work with this device. Heat only stats were the first generation, since our contractor research indicated that the target customers had seperate AC, and that was not a big deal. I'm disturbed that you got the wrong info, I apologize. If you want, drop me an email for more info.

Home Depot Employee

I'm cool now Bill, since I don't live there anymore.

With regards to a standard heat stat working, after I connected everything and the Visionpro stats not functioning, I did disconnect the stat wires and used a jumper and still had no heat. Brought home the AQ stats next day and all as fine, any thoughts or did I missunderstand?

Big Will

I tried

one with a dual occupancy home in SF. Its easy to understand, very clean, great features for system control and although I was caught off guard by the thermostat thing also but I really like the look of the stats. They are very small and simple very attractive. A bit pricey compared to the old Honeywell relay panels but they do a lot more. I have already ordered more for upcoming jobs.

ScottMP

I was looking at this

as a less expensive and less cumbersome version of the Tekmar TN4.

Any thoughts in that direction.

Scott

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Paul Rohrs_4

Fairly Impressed

with the capabilities of this system. I really like the simple two-wire stats and programming is done at the main control. The only detraction is that it didn't directly control modulation.

I have quite a bit of time/training in Tekmar, but there are some very nice features in this system. I am waiting for a positive track record before I try one. I don't want to feel like a beta-tester for different equipment and I want to make sure this is a bullet-proof control before climbing on board.

1-1/2 years ago, I went to a seminar which was very thorough in the time allowed, and they (Honeywell) were already talking about revisions. So, I am still in a holding pattern on this, but the support is there and I already have the Visio stencils for system design and layout.

Is there a function(s) that you are liking on this?

(edited-post coffee)

Regards,

PR

ScottMP

Paul

Wound'nt the in individual boiler controls its own modulation ??

Does the TN4 control that ?

Scott

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Paul Rohrs_4

Boiler


Yes, the boiler usually controls it's own modulation, but Tekmar's can control modulation. Pro's/Con's to each but my thinking is I will use it either way, I just want to see the unit working for "X" amount of time without changes so working history is proved to be stable.

I still have issues with a manufacturers zone valves that they say they don't know of any issues, and then the rep shows up with a boat-load of them as defective. What constitutes a problem? Does the rep not communicate with the factory?

I don't need anymore issues than I already have, and I KNOW you know what I mean.


Paul

UniR_2

Tekmar comparison - tn4 vs AQ2000

www.tekmarcontrols.com/sb/sb045.pdf

This might be of interest...

ScottMP

Good info

It may be a little dated as it states the Honeywell does not have mixing capabiltys and it now does allow for mixing valve or injection.

I will check all this and get back to you guys.

Scott

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Bill W@Honeywell

We do have mixing now...

The new AQ2521M0 will do 1 zone reset and operate mixing pumps or valves. Go to www.customer.honeywell.com, and scroll down to the lower right corner. Type in the part number above, and you'l get a PDF file of the tech sheets. Also, if you want literature to give to potential customers, order flyer number 63-9818. We also offer a custom postcard, 63-9815, with your name, phone and website on it that features this product. See your distributor for details, or drop me an email.