UPDATE old, obsolete VVT systems without removing the DAMPERS!!!!

  • Designed specifically for retrofitting Older VVT type systems using existing dampers and most of the existing wiring
  • RetroZone  greatly reduces cost of labor and parts and allows building tenants  to enjoy the benefits and efficiency of updating older systems at a lower price
  • RetroZone  works with any of our commercial Zoning or DDC Systems

Review this simple upgrade now

System Brochure Additional System Information

Number of Zones 2-20

System Data     Commercial – DDC
Auto Changeover    Yes
Capacity Control    Yes
Heat Pump or Gas/Electric    Univeral
Wire Configuration    Daisy Chain
2 Wire Twisted Pair
Damper Configuration    Round & Rectangle
Damper Movement    Fully Modulating
Damper Capacity    1.75 SP
Number of Cool Stages    2
Number of Heat Stages   2
Remote Sensor Capability   Yes
Remote Internet Communications Yes

Video Presentations

Please click on any of the video links below.

Upgrade Old Parker or VVT Systems


NOW use WIRELESS THERMOSTATS to Upgrade Old Parker or VVT Systems