Copyright RetroZone inc.2012 

Super Duty, SD Damper,
 Flexdamper, Airzone are
 trademarked names
 of Retrozone Inc.


See how easy it is to install a Zoning System

Our Flexdamper Airzone Installation manual is now on line 


If you have an AirZone FlexDamper system and need our trouble shooting guide please click on the PDF ICON below in order to view and download.


 AirZone FlexDamper system trouble shooting guide



Air Zone Test Kit  $39.00

Click here

Below are operations manuals for the Robertshaw SlimZone Classic and Deluxe control panels as seen in our catalog. There is a lot of information in these manuals that will answer whether or not these panels are right for your application.

If you have multistage equipment, have more than 3 Zones, or are interested in future expandability look at the Deluxe.  If you have single stage equipment and just need 2 or 3 zones, the Slim Zone Classic or the EWC NMC will be your best value.

The Durozone ED-4 will support up to 4 zones with 3H/2C, 2H/2C+Heat Pump capabilities.  See below for more details.

If looking for a panel that can handle single stage, two stage, dual fuel and heat pumps, for zone control up to seven zones, the BMPlus series control panel would be a good choice.   

Robert Shaw SlimZone Classic (SZC) Zone Control Board Installation Manual


Robert Shaw SlimZone Deluxe (SZD) Zone Control Board Installation Manual

Durozone ED-4 Zone Control Panel

NCM 300 Control Panel

BMPlus Control Panel

UZC Control Panel


Zone Control System Troubleshooting

Zone control system troubleshooting:  


Wiring Diagrams

Converting a 2 wire zone control board to operate a Belimo LMB 3wire damper

SD and Flexdamper to control panels

Slave Zone Wiring diagram - Thermostat

Slave Zone Wiring diagram - Switch

Durozone RD-Series Dampers to Zone Control Panels

Damper Motor Retrofit Kits

Replacing Obsolete Damper Motors
BH Kit1 
Honewell to Belimo lmb24
LMB24-Kit2 Ztech, Beutler Retrofit Kit

LMB24-Kit4 3150 Motor Retrofit Kit


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