ECU Kit Replaces Sunstrand
With Enviro Systems Upgrade
The replacement system is based on an improved version of the Enviro Systems ECU. The original Enviro ECU was developed in conjunction with Gulfstream Aerospace when it was producing JetProps as a replacement for factory-installed Sunstrands.
Sunstrand ECUs have been plagued by reliability issues, while Enviro Systems has improved its original ECU by making it more reliable and using a new temperature controller that does a better job of maintaining cabin temperature at the selected value.
The improvements will be made available to JetProp owners with Enviro units, and the entire Enviro Systems ECU is being offered as a kit to JetProp owners with Sunstrand units.
The kit provides for complete replacement of the Sunstrand ECU with an Enviro system, and includes heat exchangers, blowers, bleed air plumbing, and new air inlet and outlet vents mounted on the aft fuselage.
A separate air-conditioning unit is required for the Enviro ECU. Sunstrand-equipped airplanes with air-conditioning would not have to replace their AC units when converting to an Enviro system.
For more information about the Enviro upgrade for Sunstrand-equipped Twin Commanders, contact Twin Commander Aircaft at 360-435-9797, or an authorized Twin Commander Service Center.