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[engr127]

Hello everyone,

I am an application engineer for a temperature control contractor.  We have a small project where we are interested in using TAC (Invensys) VT7200C1018B BACnet zoning thermostats for 7 cabinet heaters.  I am trying to verify the actual physical arrangement of the screw terminals on this model so I can show the connections as clearly as possibe on our wiring diagrams.

I've looked through all the TAC and Viconics literature that I've been able to find on their respective websites.  The Viconics 7600 series product overview pdf has a detail showing the screw terminal arrangement for those models, but unfortunately the V7200 and V7300 overviews don't contain anything equivalent.  Does anyone know if I'm overlooking a document somewhere that shows this info for these series?

[Zinc22]

Hi engr127

What are you looking for specifically ?

They are labeled this way for that particular model: VT7200C1018B

Top left terminal
24 V~ Hot
24 V~ Com

Top right terminal      
BO 5-Aux
BO 5-Aux
BO 3 (Open Heat)

Bottom terminal      
BO 4 (Close Heat)
BO 1 (Open Cool)
BO 2 (Close Cool)
BI 1
RS   
Scom   
BI 2
UI 3 (COS / COC /SS)

And of course the BACnet connector +/-

Send me an at my co mail address & I will email you all the proper documentation:
mlemieux at viconics dot com

Have a great weekend.      

[engr127]

Thanks for the info, that definitely helps.  The product overview pdf listed all those terminals, but didn't clarify "top left, top right, bottom".  I've learned from experience that even if we show our wiring going to the correct terminal numbers, if the actual device has some of those terminals in a different location than shown on our drawings, we inevitably get wiring mistakes.  So I'm just trying to show our installers exactly what they will see when they're on site.

I'll send you an email - this will be our first installation of Viconics stats, so any information you can send us will not go to waste.  Thanks again.