The evaporator coil must be installed in the discharge (supply) air of a gas or oil furnace. This is a field-installed accessory only. Provides fast and easy coil access without the need to cut refrigerant lines 1% or Less Cabinet Air Leakage Allows for quick and easy installation without the need to add tape to seams Premier Evaporator Coil ADP premier evaporator coils match perfectly with your system, providing an upgrade over standard matched coils. Mark holes on tabs 3. Do not install an evaporator coil in the return air, or excessive condensation will occur within the furnace. This allows a 241/2" wide cased coil to be installed on a 28" wide oil furnace. 3 tabs are provided, the front of the evaporator doesn't get a tab and has to line up with plenum 2. See Figure 7. On occasion you will either find a furnace or be tasked with installing a furnace where the coil overlaps the edge of the furnace because the coil is wider. How to attach cased coil to furnace. warning: videos are for educational purposes only!! Caulk the seam between furnace and cased coil. Standoffs and screws (See Figure 1, page 6) are included with the cased coils for attachment to the furnace. NOTE: If the coil and furnace are different widths, refer to Figure 2 and Figure 3. Pre drill holes 4. Disconnect and remove a sufficient portion of the supply ductwork to provide clearance for the cased coil. 1. There are clearance alignment holes near the bottom of the coil wrapper. UPFLOW GAS FURNACE - Add-on Cooling a. If the uncased coil is to be installed on top of a gas furnace, allow enough space between the top to the furnace and the bottom of the plastic coil drain pan to have a free flow of air. 2. Screw holes into tabs 5. Use self--tapping screws to attach furnace. 4. c. Install the cased coil following the Installation Instruc-tion section D-1 of these instructions. Single panning and double panning. Seal joint between coil casing and furnace to create air--tight seal using locally--approved materials. Cased Coil Misalignment. Position the coil on the outlet of the furnace using sheet metal screws. NOTE: The top flanges on the furnace must be bent 90 degrees upward to allow the coil attachment. Self-Tapping Screws Drill After Coil Is Installed A05420 Figure 7 -- Attach Coil to Furnace 5. Fujitsu Indoor Furnace cased coils and replacement uncased coils are designed for use with Fujitsu outdoor units and are available for vertical upflow or downflow, and horizontal left or horizontal right airflow. Drill screws are used to engage the furnace top flanges. only trained and certified hvac/r personnel should service a heating and cooling system. Remove the cap and nut ... (2.5 ft-lbs) Attach drain line to … † RXBA-AC (Upflow/Horizontal) These plenum adapter accessories are for use when a cooling coil is matched with a gas furnace of one smaller size. 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