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 has …

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 others . We are not …

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 is …

Oct 14, 2009 · Metasys is for JCI branches and Facility Explore is for their agents and is more for commercial work. I remember there is a package VVT controller line in facility explorer. You can't get …

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 1. One …

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 …

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 a few of those, …

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 two bypass …

Aug 30, 2007 · i am attempting to do a floor plan showing a vvt system we have installed. the demo shows a floor plan but i haven't been able to figure out how it was done. i did one in visio and have …

Feb 4, 2019 · Correct. It seems like a VVT type sequence with Trane VAV controllers and dampers