Assessments - 4, GPA: 3.8
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The inducer is installed so that the left side exits require no rotation. If exhaust vent exits the left-side panel the pipe can be routed straight outside the cabinet. If exhaust vent exists the right-side panel the inducer requires rotation. The pipe exiting the cabinet in any installation should be long enough to install the vent clamp on the outside of the cabinet. The opening in the floor must provide adequate clearances to the combustible material. A half-inch of clearance will be required between the plenum and the combustible material. If installed on a non-combustible material, zero clearance is required. In the downflow installation, this furnace can only vent through the left or right side of the furnace. The condensate drain trap can be mounted on the right or left side. WARNING WHEN INSTALLED IN THE DOWNFLOW POSITION ON A COMBUSTIBLE FLOOR, SUBBASE KIT #30476 IS REQUIRED. FAILURE TO INSTALL SUBBASE KIT COULD RESULT IN FIRE, DEATH OR SERIOUS INJURY. A B D C C A B D A COMBUSTION AIR B EXHAUST VENT C CONDENSATE DRAIN D SUBBASE KIT - REQUIRED WHEN INSTALLED IN THE DOWNFLOW POSITION ON A COMBUSTIBLE FLOOR 11 Horizontal Left Installation In the horizontal left installation the combustion air and exhaust vent may exit through the top or left side of the cabinet (when viewed in the upflow position). It is not permissible to vent downwards. The inducer is installed so that the top and left side exits require no rotation. If exhaust vent exits the top panel, use the two street elbows to route the vent. One elbow secured to the inducer drain connector, will angle toward the front of cabinet with the second nested inside directed towards the top panel. (The 108,000 BTUH will require an extension between the inducer and the first elbow that is not provided.) If exhaust vent exits the left-side panel the pipe can be routed straight outside the cabinet. The pipe exiting the cabinet in any installation should be long enough to install the vent clamp on the outside of the cabinet. CABAABBBACCThe furnace must be installed level or sloping towards the front to facilitate proper drainage. IMPORTANT It is not permissible to use a rear of the furnace as a return. NOTE The furnace must be installed level or sloping towards the front to facilitate proper drainage. IMPORTANT It is not permissible to use a rear of the furnace as a return. NOTE COMBUSTION AIR EXHAUST VENT CONDENSATE DRAIN A B C Horizontal Right Installation In the horizontal right installation the combustion air and exhaust vent may exit through the top or right side of the cabinet (when viewed in the upflow position). In the horizontal right installation, it is not permissible to vent downwards. The inducer will require rotation if the right side exit is used. If exiting the top panel, use the two street elbows to route the vent. One elbow secured to the inducer drain connector, will angle toward the front of cabinet with the second nested inside directed towards the top panel. (The 108,000 BTUH will require an extension between the inducer and the first elbow that is not provided.) If exiting the right-side the pipe can be routed straight outside the cabinet after the inducer has been rotated. The pipe exiting the cabinet in any installation should be long enough to install the vent clamp on the outside of the cabinet. 12 CASE 1: FURNACE LOCATED IN AN UNCONFINED SPACE Unconfined space does not necessarily mean that combustion and ventilation will not have to be introduced from the outdoors, particularly in airtight homes. Refer to the appropriate installation code requirements regarding the minimum combustion air required for all fuel burning appliances located within the unconfined area. If the amount of combustion and ventilation air is insufficient to properly operate the furnace and other fuel burning appliances within the unconfined area, it will be necessary to supply it from the outdoors based on the criteria used when calculating the air supply for a confined space. NOTE If planning to use the inside air of an unconfined space, remember to test for proper furnace operation (as well as other fuel burning appliances located within the unconfined space) with respect to adequate combustion and ventilation air with fireplace dampers open, clothes dryer running, bathroom exhaust fans on, kitchen range hood on, etc. CASE 2: FURNACE LOCATED IN A CONFINED SPACE A confined space, (any space smaller than the minimums discussed in CASE 1), must have two air openings one within 12 inches of the ceiling and the other within 12 inches of the floor. The air openings must be sized based on whether the combustion and ventilation air is being taken from indoors or outdoors, the method outdoor air (if used) is introduced, and taking into account any other fuel burning appliances in the confined space. If sufficient indoor combustion and ventilation air is available for the furnace and all other fuel burning appliances, even when clothes dryers, bathroom fans, rang...
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