valutazioni - 2, GPA: 4.5
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d. Cut out duct opening 1/4" larger than area marked. INSTALL FURNACE MOUNTING PLATE a. Place mounting plate (supplied within duct connector) at rear of the floor opening (See Figure 15). INSTALLING PLATINUM SERIES 14” ROUND DUCT CONNECTOR a. Place duct connector through the floor opening. (See Figure 15). b. Secure duct connector to floor. INSTALLING SCREW DOWN DUCT CONNECTOR a. Apply a bead of caulking, mastic, or other approved sealant around bottom side of 1/2” flange and restrictor plate, when applicable. b. Locate the duct connector over duct and carefully lower screw down duct connector into place. c. Once duct connector is located on duct, temporarily hold in place while fastening duct connector to the floor using flat head screws or nails. Be sure flanges of duct connector stay in contact with the duct. d. Screw plenum to duct making sure a seal is made between the duct and the duct connector. Additional screws may be added if required. e. Cut away duct along edge of flange allowing the center to drop into the duct. Remove section of duct with caution, as edges will be sharp. INSTALLING FINGER TABBED DUCT CONNECTORS a. Place duct connector through the floor opening with bottom tabs extending through the duct opening. (See Figure 15) b. Secure duct connector to floor. c. Bend bottom tabs under and up tightly against the supply air duct (See Figure 16). NOTE: The duct connector is designed for use on ducts 12" in width. When using the connector on 12" wide ducts, there may be insufficient clearance to bend the tabs on two sides of the duct connector. In such cases the tabs may be attached to the sides of the duct by using sheet metal screws or other suitable fasteners. (See Figure 17). If sealant, mastic, or tape is used to provide a better seal, it should be approved by applicable national or local codes. ALTERNATE ATTACHMENT METHODS This procedure may also be used to install a furnace duct connector to narrow metal ductwork where insufficient clearance prevents TABS DUCT 1. INSERT DUCT CONNECTOR INTO DUCT CUT-OUT. TABS DUCT 2. BEND BOTTOM TABS OVER AND ONTO THE UNDERNEATH DUCT SERVICE. Figure 16. Installation of Duct Connector Duct Duct Connector Narrow Duct Figure 17. bending of the duct connector tabs at the side(s) of the duct. (See Figure 18). 1. Score and cut the top of the metal duct as indicated in Step 1 or Step 2. With Step 1 choice, also cut out the metal from the shaded area “A”. 2. Fold the duct flap “B” up, (See Step 3). 3. At the front-to-back of duct run (Area “A”), bend the duct tabs and secure them directly to the duct. 4. At Area “B”, bend the duct tabs up and back over, around the duct connector, (See Step 3). 5. Fold/form the duct flap against the side of the duct connector and attach as shown, (See Step 4). Use three (3) staples (minimum) on each duct flap OR, if a 2X block/joist is not provided, use two (2) sheet metal screws (minimum) on each duct flap. An alternate attachment method is acceptable, as long as the duct connector is securely attached. 6. Tape the duct flap edges with an approved tape for a leak-free joint. INSTALL FURNACE a. Remove furnace outer door(s) and bottom fuel line knockout. b. Place furnace onto duct connector and center with floor opening. c. Slide onto mounting plate. (Bottom rear slots on furnace should engage with mounting plate tabs.) d. Secure front with one (1) fastener at each corner (See Figure 19 or 20). NOTE: Additional fasteners may be used at rear, sides or through door frame, as desired, to secure furnace to closet or alcove framing. INSTALL ROOF JACK Apply caulking compound on underside of roof flashing to form a continuous strip at least 3/8" wide (see Figure 21) around the underside of the perimeter of the flashing. Connect Roof Jack Assembly to the furnace. Insert telescoping Roof Jack Assembly through the opening cut on the roof. Connect flue pipe to flue collar of furnace. Connect combustion air pipe to furnace collar with sheet metal screw (See Figure 22). It is recommended that the connection of the combustion air pipe to the furnace be made before the flashing is secured to the roof to maintain alignment of roof jack and furnace connections. NOTE: For replacement furnaces, be sure the inner flue pipe connects over the furnace vent collar. DO NOT use a smaller diameter inner flue pipe which could slide inside the furnace vent collar and restrict the flow of furnace flue products. Attach Roof Flashing: If necessary, shift roof flashing slightly in the roof opening so that assembly is in good alignment with furnace. Press down firmly over caulking on roof flashing to make the seal with roof water tight. Secure flashing with appropriate fasteners. As an Staple Folded Duct Flap (typ) to side of Duct Connector Duct STEP 4. STEP 1. "B" "B" Cut- Out Area"A" Cut- Out Area "A" Fold Back Flap "B" Fold Back Flap "B" Top of Duct "A" "A" STEP 2. Fold Back Flap"B" Cut Lines Duct Fold Back Flap"B" STEP 3. Bend Duct Connector Tabs Up and Over- (...
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