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 …

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 sells …

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 …

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 …

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 …

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 links are not …

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, …

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