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4. After installing roof jack on furnace top collar, check to make sure there is no gap in back or side between the pipe collar end the furnace casing top. If necessary to prevent excessive air leakage, the installer should seal joints in the combustion air tube with aluminum type or other suitable sealant. INSTALLATION IN SNOW REGIONS When the combustion air pipe inlet is covered or blocked with snow, the furnace will not operate properly due to the depleted combustion air supply. Therefore, if the furnace will be located in regions where snow accumulation on the roof exceeds 7" or in H.U.D. Snow Load Zones, a roof jack extension (Part No. 7680B6541) is recommended. LOCATING AND CUTTING ROOF JACK OPENING To facilitate the proper installation of the roof jack, it is very important that the roof jack opening in the ceiling and roof be on the same vertical center line as the furnace flue collar. See Figure 9. Mark this location on ceiling and scribe a circle with a 5" radius (10" diameter) around this mark. Cut opening for roof jack through ceiling and roof. (If furnace was installed during construction, cover furnace and flue opening to prevent debris from entering flue when hole is cut for roof jack.) INSTALLING ROOF JACK IN ROOF (See Figure 6 & 7 for Dimensional requirements.) Insert reef jack into opening inthe roof. The roof jack should be secured to the furnace before roof flange (flashing) is secured to the roof. This will insure a better alignment of the flue pipe and furnace flue collar. Caulk around and under roof flange to provide a water tight seal, before secoring roof jack flashing to roof. Unitary Products Group 035-16328-002 Rev. C (0902) DGAH FURNACES DGPH, DGPA,& DGAAFURNACES SWIVEL FLASHING SLANT INSTALLATION DIMENSIONS INSTALLATION DIMENSIONS ADJUSTS FROM FLASHING 0/12 TO 5/12 PITCH 3/12 PITCH "A" "B" ADJUSTABLE HEIGHT ADJUSTABLE HEIGHT 4000-7101/C 4000-6101/A 7O" _ 79" 86" to 95" 4000-7121/C 4000-61211A 75" _ 86" 91"to 102" 4900-7141/C 4000-6141/A 83"to 104" 99"to 129" 4900-7151/C 4000-6151/A 90"_ 116" 106"to 132" 4900-7171/C 4009-6171/A 127" _ 15T' 143" _ 173" The 4084-7141 s d mens onally the same as 4000-7141/C and is avallab e on y In Canada. 2 ...... The 4084-7151 is dimensionally the same as 4000-7151/C and is available only in Canada. FLUE CAREFULLY CAULK ALL AROUND SWIVEL JOINT WITI-I • F_E S 19 1/2" GASES SEALANT SUPPLIED By FURNACE MANUFACTURER, 1_ _ t f _ _ _ I _t COMBUSTION 19 1/2 CAULK T.oEndU00e,o.,onJao,,oF o,Po,.oo,need /. Not extend below the ceiling. _ __ _ AND ROOF. THIS IS THE INSTALLER S RESPONSIBILITY = L_ __ __ AB 76" 59-1/2" DGPH, DGPA, DGAA, MODELS DGAH MODELS ,r -,iv ..... FLOOR _ 1 F / WARM AIR DUCT DUCT CONNECTOR DUCT CONNECTOR WARM AIR DUCT FIGURE 6 : Standard Roof Jack Unitary Products Group 035-16328-002C(0902) Rev. DGAH FURNACES SWIVEL FLASHING SLANT INSTALLATION DIMENSIONS ADJUSTS FROM FLASHING 0/12 TO 5/12 PITCH 3/12 PITCH =A = ADJUSTABLE HEIGHT 4000-8161/C I 4000-9161/A 85" to 101" 4000-8181/C 4000-9181/A 99" to 129" IMPORTANT AND ROOE A 59-1/2" DGAH MODELS FLOOR WARM AIR DUCT DUCT CONNECTOR FIGURE 7 : Roof Jack With Removable Crowns DGPH, DGPA, & DGAA FURNACES INSTALLATION DIMENSIONS "B" ADJUSTABLE HEIGHT 101" to _17" 115" to 145" CAULK UNDER FLASHING ROOF B 76 II DGPH, DGPA, DGAA, MODELS DUCT CONNECTOR WARM AIR DUCT Unitary Products Group 035-16328-002 Rev. C (0902) DUCT CONNECTORS I .. -= I , , T. _ DUCT CONNECTOR DIMENSIONS DUCT CONNECTOR DIMENSIONS DUCT CONNECTOR DUCT CONNECTOR DUCT CONNECTOR DUCT CONNECTOR PART NUMBER DEPTH PART NUMBER DEPTH 7990-60...

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