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  1. linking CCN VVT to RTU Opn and UPC Open - HVAC-Talk

    May 29, 2024 · Hi, Existing zones controllers are CCN VVT(part# 33ZCVVTZC-01 v1.2). We just changed out the carrier package units some has Carrier RTU open bacnet card and others …

  2. VAV vs VVT | HVAC-Talk: Heating, Air & Refrigeration Discussion

    Jan 26, 2005 · The VVT system relies heavily upon all the distributed zones having similar conditions.It is a cheap setup IMO to provice any heat to an area it must stop cooling the …

  3. JCI - Metasys vs. Facility Explorer - HVAC-Talk

    Jan 22, 2010 · I remember there is a package VVT controller line in facility explorer. You can't get Metasys unless you are a branch or an authorized agent. Locally in Toronto, I think Yorkland …

  4. Circon controller for Aaon RTUs, VVT system - HVAC-Talk

    Aug 22, 2006 · Most VVT systems don't control to SAT, they fire stages based on the max (voted) demand for heating or cooling and assume the system is sized to accomodate. Assuming SAT …

  5. jace graphics | HVAC-Talk: Heating, Air & Refrigeration Discussion

    Aug 30, 2007 · Jump to Latest 3.8K views 6 replies 5 participants last post by fculotta Sep 6, 2007 V viceman Discussion starter 2,410 posts · Joined 2005 #1 ·Aug 30, 2007 i am attempting to …

  6. vvt bypass damper location - HVAC-Talk

    Jan 18, 2006 · Gents, We're tasked with finding solutions for a 5yr old/8 zone/no reheat Carrier VVT system that has experienced intermittent noise and temperature control issues since day …

  7. Carrier VVT | HVAC-Talk: Heating, Air & Refrigeration Discussion

    Feb 11, 2007 · I service a Medical Bld. that has a VVT system 30 ton Compressor for cooling and a boiler for heating. My question is the unit shut down on a SE 11 ERROR on the Monitor stat I …

  8. Trane Summit/Tracer/Voyager Question - HVAC-Talk

    Mar 22, 2007 · I've started working on a problem job that has a summit front end (with several CPL programs), webs, and voyager VVT RTU's with bypass dampers. It appears the property …

  9. Carrier i-Vu VVT Bypass II Controller Issues - HVAC-Talk

    Jun 8, 2021 · We recently inherited a Carrier i-Vu job with quite a few VVT systems. Today we were on site troubleshooting some issues in regards to some of the bypass dampers. We had …

  10. Old carrier VVT zone controller/actuator info - HVAC-Talk

    Apr 14, 2011 · Old carrier VVT zone controller/actuator info I am replacing an old Carrier VVT system with the white zone controller/actuators with the circuit board on them. I want to reuse …