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Resumen del manual
† If single point box has fuses, contents will include a hinged cover, rivets, and magnetic latch. TABLE OF CONTENTS SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . 1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31 HeaterInstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Install Single Point Box . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Configuring ComfortLink Control . . . . . . . . . . . . . . . . . 4 SAFETY CONSIDERATIONS Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory.authorized kits or accessories when modifying this product. Refer to the individual instructions packaged with kits or accessories when installing. Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and National Electrical Code (NEC) for special requirements. Recognize safety information. This is the safety.alert symbol . When you see this symbol on the furnace and in instructions or manuals, be alert to the potential for personal injury. Understand the signal words DANGER, WARNING, and CAUTION. These words are used with the safety.alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies a hazard which could result in personal injury or death. CAUTION is used injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation. CAUTION! ELECTRICAL OPERATION HAZARD Failure to follow this caution may cause personal injury and damage to equipment. Field modification of electric heat staging may result in the overriding of electric heat safety switches and is prohibited. CAUTION! PROPERTY DAMAGE HAZARD Failure to follow this caution may result in property damage. When removing panels from the unit, be careful not to damage the roof or other surfaces with the panels. GENERAL This installation instruction covers accessory heaters CRHEATER200A00 through CRHEATER263A00. A single point box may be required for some heaters. The single point box must be ordered separately when required. INSTALLATION Heater Installation Perform the following procedure to install the accessory electric heaters: 1. Turn off power to the unit. Install “Lock.Out Tag.Out” tag on unit disconnect or breaker. 2. Configure unit for horizontal duct configuration, if desired. NOTE: The 50PG16 size requires an accessory conversion kit for converting from vertical to horizontal duct configuration. 3. Permanently mark the appropriate block on the unit nameplate for the accessory heater installed. 4. Verify unit input power wire sizing and circuit protection per requirements on the unit nameplate for the accessory heater installed. 5. Open the electric heater section, compressor section, and indoor fan section access doors. (See Fig. 1.) to identify unsafe practices which may result in minor personal 2 6. Remove the block-off plate from electric heater compartment and save screws. (See Fig. 2.) 7. Slide heater module into heater compartment by aligning the heater frame with the heater opening. Do NOT handle heater assembly by the heating coils. Handle by sheet metal panel only. (See Fig. 3.) NOTE: The 50PG16 heater bottom-rear flange will secure into a slot on the internal cross rail when fully installed. Check that the heater flange is straight and flat before installing. 8. Secure electric heater to unit using screws from item 6. Heater will attach to the block off plate screw holes. 9. Route heater power wires to the left through the foam bushing and to the single point power connection box in the compressor section. (See Fig. 3 and 4.) 10. Install the single point box, if required. Refer to the Install Single Point Box, Step 2, for details. 11. Route the control wires to the left through the foam bushing. Connect to the mating plug (PL.3) in the wire harness in the indoor fan section. Do not route 24 volt low voltage wiring beside high voltage wiring. Maintain at least a 1.2” separation. 12. Set the manual reset limit switch on the fan housing by pressing the button located between the terminals on the switch. (See Fig. 3.) NOTE: This switch is added as a supplemental means to de.energize the electric heat contactor in case of indoor airflow failure. The switch should only open and require reset for a switch temperature above 200F. 13. Apply ...