FloAire Non-Welded Grease Duct Systems - Manual (Page 10)

10
Access Door (Tee Cap) Assembly
Access doors (tee caps) are available 8” to 24”. They work in conjunction with the manifold tee as previously
shown in Fig. 5. The tee joint connection is shown in Fig. 1 – JOINT ASSEMBLY; however, the installation
of the access door is slightly different so read the following instructions very carefully. Consult NFPA 96,
Chapter 7, Section 7.3.1 “Openings shall be provided at the sides or at the top of the duct, whichever is more
accessible, and at change of directions”.
1. Select the location and the position of the access door.
2. All tee joints will be connected as shown in Fig. 1 – JOINT ASSEMBLY except for the access door.
3. Apply the proper sealant to the flange of the tee that will be used for access to the duct system.
4. Apply a ¼” continuous bead around the flange.
5. Center the inside blank (grease dam) over the opening of the tee and apply pressure. Pushing the
inside blank down onto the tee flange sealant, securing the inside blank to the tee flange.
6. Apply enough pressure to create a positive bond between the tee flange and the inside blank.
Remove excess sealant after making parts concentric (centered).
7. Apply a ¼” continuous bead around the inside blank 1” from the outside edge.
8. Center the listed gasket over the inside blank and push the gasket down into the sealant securing the
gasket to the inside blank.
9. Sealant will begin to cure upon exposure to atmospheric humidity. It will form a flexible seal.
10. Once the sealant is dry attach the access door using a “V” clamp. Ensure flanges are in the “V”
before tightening ¼-20 hardware to 80 in-lbs.
Fig. 6 – Access Door Assembly