diff --git a/src/ffi_ZDC.cpp b/src/ffi_ZDC.cpp
index 89690bc244b4578487fde45c8469c283b09e40fc..cedcdb388ddd7b272598ffb4fba4bfd909d7defa 100644
--- a/src/ffi_ZDC.cpp
+++ b/src/ffi_ZDC.cpp
@@ -31,19 +31,13 @@ static Ref_t createDetector(Detector& desc, xml_h e, SensitiveDetector sens)
   double     mGap       = mod.attr<double>(_Unicode(gap));
   int        mNTowers   = mod.attr<double>(_Unicode(ntower));
 
-  //DetElement   det(detName, detID);
-  //Volume       motherVol = desc.pickMotherVolume(det);
-  
   // Create Global Volume 
   Box ffi_ZDC_GVol_Solid(Width * 0.5, Width * 0.5, Thickness * 0.5);
   Volume detVol("ffi_ZDC_GVol_Logic", ffi_ZDC_GVol_Solid, Vacuum);
-  //Transform3D  tr(RotationZYX(rot.z(), rot.y(), rot.x()), Position(pos.x(), pos.y(), pos.z()));
-  //PlacedVolume detPV = motherVol.placeVolume(detVol, tr);
-  //detPV.addPhysVolID("system", detID);
   detVol.setVisAttributes(desc.visAttributes(x_det.visStr()));
 
   // Construct Tower
-  // Module
+  // Single Module
   Box ffi_ZDC_ECAL_Solid_Tower(mWidth * 0.5, mWidth * 0.5, mThickness * 0.5);
   Volume modVol("ffi_ZDC_ECAL_Logic_Tower", ffi_ZDC_ECAL_Solid_Tower, mPbWO4);  
   modVol.setVisAttributes(desc.visAttributes(mod.visStr()));
@@ -82,7 +76,8 @@ static Ref_t createDetector(Detector& desc, xml_h e, SensitiveDetector sens)
 
   DetElement   det(detName, detID);
   Volume       motherVol = desc.pickMotherVolume(det);
-  Transform3D  tr(RotationZYX(rot.z(), rot.y(), rot.x()), Position(pos.x(), pos.y(), pos.z()));
+  Transform3D  tr(RotationZYX(0.0, 0.0, 0.0), Position(pos.x(), pos.y(), pos.z()));
+  //Transform3D  tr(RotationZYX(rot.z(), rot.y(), rot.x()), Position(pos.x(), pos.y(), pos.z()));
   PlacedVolume detPV = motherVol.placeVolume(detVol, tr);
   detPV.addPhysVolID("system", detID);
   det.setPlacement(detPV);