Carrier 58PAV Installation, Start-up, And Operating Instructions Manual

Also see for UPFLOW INDUCED-COMBUSTION FURNACES 58PAV: User manual Service and maintenance instructions Maintenance and service instructions Service and maintenance instructions Service and maintenance instruction

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Carrier 58PAV Installation, Start-up, And Operating Instructions Manual Manual pdf 5 page image

2. All air from outside the structure:a. If combustion air is taken from outdoors through verticalducts, the openings and ducts MUST have at least 1 sq in.of free area per 4000 Btuh of the total input for allequipment within the confined space. (See Fig. 3.)b. If combustion air is taken from the outdoors throughhorizontal ducts, the openings and ducts MUST have atleast 1 sq in. of free area per 2000 Btuh of the total inputfor all equipment within the confined space.c. When ducts are used, they must be of the same cross-sectional area as the free area of the openings to which theyconnect. The minimum dimension of rectangular ductsmust not be less than 3 in. (See Fig. 3.)Do not install the furnace on its back; safety control operationwill be adversely affected. Never connect return-air ducts tothe back of the furnace. A failure to follow this warning cancause a fire, personal injury, or death.Step 3—Filter ArrangementThe factory-supplied filter(s) is shipped in the blower compart-ment. Determine location for the filter and relocate filter retainingwire if necessary. See Fig. 4 for side return application and Fig. 5for bottom return application. See Table 3 to determine correctfilter size for desired filter location. Table 3 indicates filter size,location, and quantity shipped with the furnace.For bottom air-return applications, filter may need to be cut to fitsome furnace casing widths. A bottom closure panel is factoryinstalled in the bottom of the furnace. When bottom return inlet isdesired, remove and discard the bottom closure panel. Two sets ofhardware are needed for furnaces in 24-1/2-in. wide casings using2 filters for bottom return. All hardware is provided for filterinstallation.NOTE: Furnaces with a 17-1/2-in. wide casing require an addi-tional procedure when locating the filter for bottom return-airapplication. Field-fabricate a sheet metal filler strip 1 X 3 X 24-1/2in. and install it along side of the filter as shown in Fig. 5. Drive2 screws through the casing side and into the filler strip to secureit in place. Filter should rest on the top of the filler strip wheninstalled.Never operate unit without a filter or with filter access doorremoved. Failure to follow this warning can cause fire,personal injury, or death.Step 4—Leveling Legs (If Required)When the furnace is used with side inlet(s) and leveling legs arerequired, refer to Fig. 6, and install field-supplied, corrosion-resistant 5/16-in. machine bolts and nuts.For Example:58PAV FURNACEINPUT BTUHFREE AREA PER OPENING(SQ IN.)ROUND PIPE(IN. DIA)44,000 11.0 466,000 16.5 588,000 22.0 6110,000 27.5 6132,000 33.0 7154,000 38.5 7For Example:58PAV FURNACEINPUT BTUHFREE AREA PER OPENING(SQ IN.)ROUND PIPE(IN. DIA)44,000 22.0 666,000 33.0 788,000 44.0 8110,000 55.0 9132,000 66.0 10154,000 77.0 10Fig. 3—Air For Combustion and Ventilation(Outside Air)A890131 SQ IN.PER4000BTUH*DUCTSTOOUTDOORS1 SQ IN.PER 4000BTUH*SUPPLYAIRVENTTHROUGHROOFDBACE1 SQ IN.PER 4000BTUH*DUCTTOOUTDOORSRETURN AIR1 SQ IN.PER 2000BTUH*1 SQ IN.PER 2000BTUH*DUCTSTOOUTDOORS12″ MAX12″ MAX12″ MAXUse any of the followingcombinations of openings:A & B C & D D & E F & GNOTE:*Minimum dimensions of 3-In.CONFINEDSPACE12″MAX12″MAXOUTDOORS1 SQ IN.PER4000BTUH*FGFig. 4—Side Filter Arrangement(Control Removed for Clarity)A93045FILTERRETAINERWASHABLEFILTER5