Trane Climate Changer T Series Installation Operation & Maintenance page 14

Pre-Installation Requirements
Roof Curb Installation Checklist
See T-Series air handler Roof Curb installation manual CLCH-IN-18 for information on
installing roof curbs.
It is recommended that the curb be installed directly on the support members and
fastened to the supports using tack welds or other equivalent methods. Properly
supported decking should be installed inside the air handler section of the curb when this
method is used. See
Figure 2.
1. Verify that the roof structure can adequately support the combined weight of the unit
2. Ensure that the selected installation location provides sufficient service and
3. Remove any twist within the curb due to roof supports and square the curb.
4. Level the curb.
5. Secure the curb to the roof support members.
6. Install 2-inch thick boards or rigid insulation around the curb.
7. Install cant strips around the curb.
8. Bring field supplied roofing felt up to the top of the curb nailing strips. Nail felt into
9. Install field supplied flashing under the lip of the curb flanges and over the felt.
10. Apply sealant to the four corners. Caulk all joints between the curb and the roof.
14
Figure
Cross section of typical curb installation on new construction
and curb assembly.
operational clearances.
place.
Attach the gasket material to the curb's top flanges (entire perimeter) and to the
supply and return air duct opening panel flanges.
2.
T-Series Climate Changer Air Handler • CLCH-SVX06A-EN