Carrier 48HC*04–14 Service And Maintenance Instructions

14C08206Fig. 17 -- Propping Up Top Panel4. Remove screws securing coil to compressor plate andcompressor access panel.5. Remove fastener holding coil sections together at re-turn end of condenser coil. Carefully separate the out-er coil section 3 to 4 in. from the inner coil section.See Fig. 18.C08207Fig. 18 -- Separating Coil Sections6. Use a water hose or other suitable equipment to flushdown between the 2 coil sections to remove dirt anddebris. Clean the outer surfaces with a stiff brush inthe normal manner.7. Secure inner and outer coil rows together with afield--supplied fastener.8. Reposition the outer coil section and remove the coilcorner post from between the top panel and centerpost. Reinstall the coil corner post and replace allscrews.Totaline Environmentally Sound Coil CleanerApplication EquipmentS 2--1/2 gallon garden sprayerS Water rinse with low velocity spray nozzleUNIT DAMAGE HAZARDFailure to follow this caution may result in reducedunit performance or unit shutdown.High velocity water from a pressure washer, gardenhose, or compressed air should never be used toclean a coil. The force of the water or air jet willbend the fin edges and increase airside pressure drop.CAUTIONUNIT DAMAGE HAZARDFailure to follow this caution may result in acceleratedcorrosion of unit parts.Harsh chemicals, household bleach or acid or basiccleaners should not be used to clean outdoor or indoorcoils of any kind. These cleaners can be very difficultto rinse out of the coil and can accelerate corrosion atthe fin/tube interface where dissimilar materials are incontact. If there is dirt below the surface of the coil,use the Totaline environmentally sound coil cleaner.CAUTIONTotaline Environmentally Sound Coil CleanerApplication Instructions1. Proper eye protection such as safety glasses is recom-mended during mixing and application.2. Remove all surface loaded fibers and dirt with a vacu-um cleaner as described above.3. Thoroughly wet finned surfaces with clean water anda low velocity garden hose, being careful not to bendfins.4. Mix Totaline environmentally sound coil cleaner in a2--1/2 gallon garden sprayer according to the instruc-tions included with the cleaner. The optimum solutiontemperature is 100_F.NOTE: Do NOT USE water in excess of 130_F, as theenzymatic activity will be destroyed.5. Thoroughly apply Totaline environmentally soundcoil cleaner solution to all coil surfaces includingfinned area, tube sheets and coil headers.6. Hold garden sprayer nozzle close to finned areas andapply cleaner with a vertical, up--and--down motion.Avoid spraying in horizontal pattern to minimize po-tential for fin damage.7. Ensure cleaner thoroughly penetrates deep into finnedareas.8. Interior and exterior finned areas must be thoroughlycleaned.9. Finned surfaces should remain wet with cleaningsolution for 10 minutes.10. Ensure surfaces are not allowed to dry before rinsing.Reapplying cleaner as needed to ensure 10--minutesaturation is achieved.11. Thoroughly rinse all surfaces with low velocity cleanwater using downward rinsing motion of water spraynozzle. Protect fins from damage from the spraynozzle.Evaporator CoilCleaning the Evaporator Coil1. Turn unit power off. Install lockout tag. Removeevaporator coil access panel.2. If economizer or two--position damper is installed, re-move economizer by disconnecting Molex plug andremoving mounting screws.3. Slide filters out of unit.48HC