SERVICE MANUAL for MODEL AirV Rooftop Air Conditioning Systems

3.7 SERVICE - UPPER UNIT - LOW PROFILE3.7.1 Exterior Cover RemovalCAUTIONb. b.Coil fins are sharp. Use care when removingthe cover form the base pan to avoid personalinjury.b.b.To remove the exterior cover, do the following:a. Before working on unit place the master switch in theOFF position and disconnect all electrical power.b. Remove (8) screws securing the unit cover to thebase pan assembly. See Figure 3--27.c. Carefully lift the exterior cover off of the unit base panassembly.d. Reverse above procedure for reassembly.b. b.c.Figure 3 -28 Upper Scroll AssemblyLocking Tabs (b.) & Screw Locations (c.)ScrewsScrewsFigure 3 -27 Cover Assembly - Low Profile3.7.2 Upper Scroll Assembly RemovalTo remove the upper scroll assembly, do the following:a. Remove exterior cover assembly. Refer to paragraph3.7.1.b. Release the (2) front, (2) rear, (1) left side and (1) rightside locking tabs (See Figure 3--28) by pulling backon the tabs (See Figure 3--29).c. Remove the screw (1) from the control box cover(See Figure 3--28).d. With all (6) locking tabs released and control boxscrew removed, lift the upper scroll assembly off ofthe lower scroll assembly.e. Reverse above procedure for reassembly. Ensure all(6) locking tabs snap shut & lock.Figure 3 -29 Upper Scroll AssemblyKeeper Tab ReleaseT--298 3--12 10/09