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FOR YOUR SAFETY. TWO MAJOR CAUSES OF GREASE DUCT RELATED FIRES: (1) FAILURE TO MAINTAIN REQUIRED CLEARANCE (AIR SPACE) TO COMBUSTIBLE MATERIALS AND (2) FAILURE TO CLEAN GREASE LADEN DUCTS. IT IS OF UTMOST IMPORTANCE THAT THIS GREASE DUCT BE INSTALLED ONLY IN ACCORDANCE WITH THESE INSTRUCTIONS.
For neutral and negative chimney or grease duct applications, proceed to step 4. For positive pressure chimney applications, apply 1/4” wide continuous bead of 3M Fire Barrier 2000 + Silicone around the formed bead of the internal joint collar. Push the internal collar down into the chimney section assembly.
Each installation is specific to the application and the job site. If you encounter a situation not covered by this illustration, refer to the guide or consult the factory. The grease duct systems illustrated in this manual have been tested to and comply with UL 2221, Tests of Fire Resistive Grease Duct Enclosure Assemblies. Page 45 The ...
SectionN am e 2 General Information-Product Over view-General NotiÞca tion Table of Contents Standards and Key W ords ... Grease Duct Components-Factor y Installed Riser-Field Installed Riser-Straight Duct ... (See ÒClearance to C om bustiblesÓ guide for details.) The g rease duct w ill term inate a t the fan a dapter plate, ...
FireMaster FastWrap® XLS Installation and Design Guidelines Grease Duct Enclosure System i. Installation on Grease Duct per ASTM E2336 and CAN/ULC S144 (Figure 1) • System requires two layers of insulation applied directly to the duct with tight butt joints minimum 1.5” (38mm) compression at all seams on both layers.
UL 103: Standard for Factory Built Chimneys for Residential Type and Building Heating Appliances. Model 3Z is classified under UL2221 (Test of Fire Resistive Duct Enclosure Assemblies) as an alternate to. 2-Hr. fire resistive shaft enclosures with a minimum zero clearance to combustibles (sizes 5” to 36” diameter).
1 Jeremias INSTALL_CK Rev:7/13/23 Commercial Kitchen Exhaust Ductwork Grease Ducts, Ovens and Industrial Cooking Appliances • Model SWCK – Single-Wall Duct • Model DWCK+1 – Double-Wall 1.25” Fiber Insulation Duct • Model DWCK-ZC – Double-Wall 3.25” Fiber Insulation, 2-Hour Fire Resistive Grease Duct Installation Instructions
