Carrier AquaForce B Series Controls, Start-up, Operation, Service And Troubleshooting Instructions

Also see for AquaForce 30XV140: Controls, start-up, operation, service and troubleshooting instructions

Contents

Carrier AquaForce B Series Controls, Start-up, Operation, Service And Troubleshooting Instructions Manual pdf 74 page image

74MCHX Condenser Coil:Maintenance and CleaningRoutine cleaning of coil surfaces is essential to maintain properoperation of the unit. Elimination of contamination and remov-al of harmful residues will greatly increase the life of the coiland extend the life of the unit. The following steps should betaken to clean MCHX condenser coils.1. Remove any foreign objects or debris attached to the coilface or trapped within the mounting frame and brackets.2. Put on personal protective equipment including safety glass-es and/or face shield, waterproof clothing and gloves. Fullcoverage clothing is recommended.3. Start high pressure water sprayer and purge any soap or in-dustrial cleaners from sprayer before cleaning condensercoils. Only clean potable water is authorized for cleaningcondenser coils.4. Clean condenser face by spraying the coil steady and uni-formly from top to bottom while directing the spray straighttoward the coil. Do not exceed 900 psig (6205 kPa), 104°F(40°C) water temperature, or 45 degree angle. The nozzlemust be at least 12 in. (304.8 mm) from the coil face. Reducepressure and use caution to prevent damage to air centers.RTPF Condenser Coil:Maintenance and CleaningRoutine cleaning of coil surfaces is essential to maintain properoperation of the unit. Elimination of contamination and remov-al of harmful residues will greatly increase the life of the coiland extend the life of the unit. The following maintenance andcleaning procedures are recommended as part of the routinemaintenance activities to extend the life of the RTPF (roundtube plate fin) coil.REMOVE SURFACE LOADED FIBERSSurface loaded fibers or dirt should be removed with a vacuumcleaner. If a vacuum cleaner is not available, a soft non-metal-lic bristle brush may be used. In either case, the tool should beapplied in the direction of the fins. Coil surfaces can be easilydamaged (fin edges can be easily bent over and damage to thecoating of a protected coil) if the tool is applied across the fins.NOTE: Use of a water stream, such as a garden hose, against asurface loaded coil will drive the fibers and dirt into the coil.This will make cleaning efforts more difficult. Surface loadedfibers must be completely removed prior to using low velocityclean water rinse.PERIODIC CLEAN WATER RINSEA periodic clean water rinse is very beneficial for coils that areapplied in coastal or industrial environments. However, it isvery important that the water rinse is made with very low ve-locity water stream to avoid damaging the fin edges. Monthlycleaning as described below is recommended.ROUTINE CLEANING OF RTPF COIL SURFACERoutine cleaning with Totaline ® environmentally balanced coilcleaner is essential to extend the life of coils. This cleaner isavailable from Carrier Replacement Parts division as part num-ber P902-0301 for a one gallon container, and part numberP902-0305 for a five gallon container. It is recommended thatall coils, including the standard copper tube aluminum fin, pre-coated fin, copper fin, or e-coated coils be cleaned with the To-taline environmentally balanced coil cleaner as described be-low. Coil cleaning should be part of the unit’s regularly sched-uled maintenance procedures to ensure long life of the coil.Failure to clean the coils may result in reduced durability in theenvironment. Avoid the use of:• coil brighteners• acid cleaning prior to painting• high pressure washers• poor quality water for cleaningTotaline environmentally balanced coil cleaner is non-flamma-ble, hypoallergenic, nonbacterial, and a USDA accepted biode-gradable agent that will not harm the coil or surrounding com-ponents such as electrical wiring, painted metal surfaces, or in-sulation. Use of non-recommended coil cleaners is stronglydiscouraged since coil and unit durability could be affected.Totaline Environmentally Balanced Coil Cleaner ApplicationEquipment• 2 1 /2 gallon garden sprayer• Water rinse with low velocity spray nozzleTotaline Environmentally Balanced Coil Cleaner ApplicationInstructions1. Proper eye protection such as safety glasses is recommendedduring mixing and application.2. Remove all surface loaded fibers and dirt with a vacuumcleaner as described above.3. Thoroughly wet finned surfaces with clean water and a lowvelocity garden hose, being careful not to bend fins.4. Mix Totaline environmentally balanced coil cleaner in a21 /2 gallon garden sprayer according to the instructionsincluded with the cleaner. The optimum solution tempera-ture is 100°F (37.8°C).NOTE: Do NOT USE water in excess of 130°F (54.4°C), as theenzymatic activity will be destroyed.5. Thoroughly apply Totaline environmentally balanced coilcleaner solution to all coil surfaces including finned area,tube sheets and coil headers.6. Hold garden sprayer nozzle close to finned areas and applycleaner with a vertical, up-and-down motion. Avoid sprayingin horizontal pattern to minimize potential for fin damage.7. Ensure cleaner thoroughly penetrates deep into finned areas.8. Interior and exterior finned areas must be thoroughlycleaned.CAUTIONDo not apply any chemical cleaners to MCHX condensercoils. These cleaners can accelerate corrosion and damagethe coil.CAUTIONExcessive water pressure will fracture the braze between aircenters and refrigerant tubes.CAUTIONHarsh chemicals, household bleach or acid or basic cleanersshould not be used to clean outdoor or indoor coils of anykind. These cleaners can be very difficult to rinse out of thecoil and can accelerate corrosion at the fin/tube interfacewhere dissimilar materials are in contact. If there is dirt belowthe surface of the coil, use the Totaline environmentally bal-anced coil cleaner as described above.CAUTIONHigh velocity water from a pressure washer, garden hose, orcompressed air should never be used to clean a coil. The forceof the water or air jet will bend the fin edges and increase air-side pressure drop. Reduced unit performance or nuisance unitshutdown may occur.