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22 <br />PREVENTIVE MAINTENANCE [TO BE PERFORMED BY TRAINED SERVICE PROVIDER] - Page 1 of 2 <br />WARNING! TURN OFF CASE BEFORE PERFORMING PREVENTIVE MAINTENANCE! <br />--- Case Shown With Case Disassembled For Illustrative Purposes Only --- <br />PREVENTIVE <br />MAINTENANCE <br />FREQUENCY INSTRUCTIONS <br />Case Interior Quarterly Evaporator Coil Area [Tub, Coil, Drain, Fan Blades, Motors, <br />Brackets, etc.]: <br /> <br />To prevent injury, turn main power switch OFF before accessing the <br />tub, coil, fan, motor and drain area. <br /> <br />Remove decking, sub-deck (if any) and fan shroud. <br />Use wet/dry vacuum to clean residue/standing water in tub area. <br />Clean tub, coil and drain with spray bottle of water, clean cloth, <br />soft-bristled brush, mild soap solution and sponge. <br />Caution! Remove debris that may clog drain. However, DO NOT <br />allow water to flow down drain and into hot gas evaporator pan. <br />This could cause an overflow of pan contents onto floor! <br />Wipe down fan blades, motors and brackets with moist cloth. <br />Caution! DO NOT get fan motors wet while cleaning! <br />Replace fan shroud, sub-deck (if any) and decking. <br />Above Illustrations (With TXV Valve at Customer-Right) Reflects Cases With <br />EnergyWise Refrigeration Package (and Hot Gas Evaporator System) <br />Fan Assembly <br />(Typical) <br />Fan Shroud <br />[Shown <br />Transparent] <br />Drain Trough <br />Along Entire Tub <br />Pressure <br />Switches <br />Drain <br />TXV <br />Valve <br />Evaporator <br />Coils <br />Fan Blade <br />and Motor