Carrier Performance 48VR-A Installation Instructions Manual

Also see for Performance 15 48VR-A: Owner's information manual Owner's information manual

Contents

48CompressorAccess PanelControlAccessPanelBlowerAccessPanelA09211Fig. 20 -- Unit Access PanelsBLOWERHOUSING2 SETSCREWS(HIDDEN)C99085Fig. 21 -- Removal of Motor and Blower WheelA07680Fig. 22 -- Burner Rack RemovedOutdoor FanUNIT OPERATION HAZARDFailure to follow this caution may result in damage to unitcomponents.Keep the condenser fan free from all obstructions to ensureproper cooling operation. Never place articles on top of theunit.CAUTION!1. Remove 6 screws holding outdoor grille and motor to topcover.2. Turn motor/grille assembly upside down on top cover toexpose fan blade.3. Inspect the fan blades for cracks or bends.4. If fan needs to be removed, loosen setscrew and slide fan offmotor shaft.5. When replacing fan blade, position blade as shown in Fig.23.6. Ensure that setscrew engages the flat area on the motor shaftwhen tightening.7. Replace grille.Electrical Controls and WiringInspect and check the electrical controls and wiring annually. Besure to turn off the electrical power to the unit.Remove access panels (see Fig. 20) to locate all the electricalcontrols and wiring. Check all electrical connections for tightness.Tighten all screw connections. If any smoky or burned connectionsare noticed, disassemble the connection, clean all the parts, re--stripthe wire end and reassemble the connection properly and securely.After inspecting the electrical controls and wiring, replace all thepanels. Start the unit, and observe at least one complete coolingcycle to ensure proper operation. If discrepancies are observed inoperating cycle, or if a suspected malfunction has occurred, checkeach electrical component with the proper electricalinstrumentation. Refer to the unit wiring label when making thesechecks.Refrigerant CircuitAnnually inspect all refrigerant tubing connections and the unitbase for oil accumulations. Detecting oil generally indicates arefrigerant leak.EXPLOSION, SAFETY AND ENVIRONMENTALHAZARDFailure to follow this warning could result in personalinjury, death or property damage.System under pressure. Relieve pressure and recover allrefrigerant before system repair or final unit disposal. Useall service ports and open all flow--control devices,including solenoid valves.! WARNINGIf oil is detected or if low cooling performance is suspected,leak--test all refrigerant tubing using an electronic leak--detector,halide torch, or liquid--soap solution. If a refrigerant leak isdetected, refer to the Check for Refrigerant Leaks section.If no refrigerant leaks are found and low cooling performance issuspected, refer to the Checking and Adjusting Refrigerant Chargesection.48VR-- A