Indoor Duct Furnace/ Vent piping- GL, GG or GZ March 11, 2024 21:10 For the furnace they should use the attached. Referenced as GL but it used for Trane GL, Trane GG and Trane GZ models. GLND-SVX01C-EN_07112020.pdf 4 MB Download Articles in this section GRAA Heat exchanger removal VFD- Lenze Drive information Freeze Stat - GRAA Maxitrol SC11 - 0-10 VDC controller for GRAA Indoor Duct Furnace/ Vent piping- GL, GG or GZ High limit and safety limit function - GRAA or Rooftop Sterling Heaters OD Air control with Siemens Controller Modulation Valve Pressure Adjustment Procedure Gas pressure requirements for the GRAA and GSAA MESTEX - APPLIED AIR- DFOA and DFIA Technical Support See more Related articles Freeze Stat - GRAA High limit and safety limit function - GRAA or Rooftop Sterling Heaters Motor Horsepower and Amperage on GLND and GMND Duct Furnace Creative Solutions Modification Request OD Air control with Siemens Controller