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Manual de usuario Carrier, modelo COMFORTLINK P3

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This checkout should not be attempted by anyone not having the required expertise and equipmentto do the job properly. Checking and/or cleaning the heatexchanger involves removing the gas controls assembly andthe flue collector box cover and, when completed, reinstallingthe gas controls assembly for proper operation. Also, the fluecollector box cover must be replaced correctly so that a properseal is maintained. Contact your dealer for the required periodic maintenance. STEP 1 Run Status Service Test Temperature Pressures Setpoints Inputs Outputs Configuration Time Clock Operating Modes Alarms Alarm Status ENTER MODE ESCAPE STEP 2 STEP 3 LOCK-OUTTAG ON OFF MAIN STEP 4 STEP 5 STEP 6 STEP 7 Fig. 3 — To Shut Unit Off 5 6 POWER EXHAUST OPTION POWER EXHAUST ACCESS DOOR (TYP BOTH SIDES) FILTER ACCESS DOOR ACCESS DOORS GAS SECTION ACCESS DOOR GAS BURNERS AIR HOODS CONTROL BOX CONTROL GAS SECTION BOX ACCESS DOOR ACCESS POWER EXHAUST DOORS ACCESS DOOR (TYP BOTH SIDES) GAS BURNERS AIR HOODS FILTER ACCESS DOOR POWER EXHAUST OPTION CONTROL BOX GAS SECTION ACCESS DOOR ACCESS POWER EXHAUST DOORS ACCESS DOOR (TYP BOTH SIDES) GAS BURNERS AIR HOODS FILTER ACCESS DOOR POWER EXHAUST OPTION Fig. 4 — Door Locations 48P2,P3,P4,P5075-100 48P2,P3,P4,P5030,035 (SIZE 030 SHOWN) 48P2,P3,P4,P5040-070 (SIZE 060 SHOWN) a48-8447 a48-8448 a48-8449 Fan and Belts — Periodically check the condition of fan wheels and housings and belt tension. When service is necessary, call your dealer. Evaporator-Fan Motor, Condenser-Fan Motor and Combustion-Fan Motor — Lubrication is not recommended. Bearings will not require lubrication for at least5 years of normal operation. After 5 years, motor life can beextended by having the motors serviced at an authorized motorservice shop. Fan Shaft Bearings — Charge fittings annually withShell Alvania No. 2 or equivalent grease. Evaporator and Condenser Coils — Cleaning of thecoils should only be done by qualified service personnel. Contact your dealer for the required maintenance as needed. Condensate Drain — The drain pan and condensatedrain line should be checked and cleaned at the same time the cooling coils are checked by your dealer. Compressors — All compressors are factory shippedwith a normal charge of the correct type refrigeration grade oilin them and should rarely require additional oil. The servicetechnician must be certain the proper oil level is maintained inthe compressor when it is installed and running. Condenser Fan WARNING Do not poke sticks, screwdrivers, or any other object intorevolving fan blades. Severe bodily injury may result. The fan must be kept free of all obstructions to ensure proper cooling. Contact your dealer for any required service. Electrical Controls and Wiring — Electrical controls are difficult to check without proper instrumentation; therefore, if there are any discrepancies in the operating cycle, contactyour dealer and request service. Refrigerant Circuit — The refrigerant circuit is difficultto check for leaks without the proper equipment; therefore, if inadequate cooling is suspected, contact your dealer forservice. Combustion Area and Vent System — The combustion area and vent system should be visually inspected before each heating season. The normal accumulation of dirt, soot, rust, and scale can result in loss of efficiency and improper performance if allowed to build up. Accumulation on theburner crossover tube can result in the burners firing out of normal time sequence. This delayed ignition is characterizedby an especially loud sound. CAUTION If your unit makes any unusual or especially loud noisesduring heating, shut down the heating section and call yourdealer. See Fig. 1 and 4 and proceed as follows to inspect the combustion area and power-venting system of your unit. 1. Turn off gas supply and then electrical power to your unit. 2. Open gas section access door. 3. Using a flashlight, carefully inspect the burner areas fordirt, soot, rust, or scale. CAUTION If dirt, soot, rust, or scale accumulations are found, call your dealer and do not operate your heating section. 4. When you have completed your inspection, follow thestart-up procedures in this manual to restore your unit tooperation. 5. Observe unit heating operation, and watch the burnerflame core to see if it is bright blue. If you observe a suspected malfunction, or if the burner flame cores are notbright blue, call your dealer. See Fig. 5. NOTE: Burner flame cores that have a mixture of orange, yellow, or red flames together with the blue may not beburning gas efficiently. Your dealer may have to adjustthe air/gas mixture. 6. Replace gas section access panel. Unit Panels and Doors — After performing any maintenance or service on the unit, be sure all panels and doors aresecurely fastened in place to prevent rain from enteringunit cabinet and to prevent disruption of the correct unit airflow pattern. Fig. 5 — Proper Flame Appearance 7 REGULAR DEALER MAINTENANCE In addition to the type of routine mai...