Carrier T--298 service manual Upper Scroll Assembly Removal, Motor Assembly

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3.5.4 Upper Scroll Assembly Removal

a.Remove exterior cover assembly. Refer to paragraph 3.5.1.

b.Remove 4 screws securing upper scroll assembly to the lower scroll assembly. (See Figure 3-18)

c.Gently pry 4 snap clips open and lift the upper scroll assembly off of the lower scroll assembly.

d.Reverse above procedure for reassembly.

Screws

4 Places

Snap Clip

4 Places

i.Remove condenser fan from motor shaft and lift fan out through the top of the condenser orifice. (See Figure 3-22)

j.Remove motor assembly.

k.Reverse above procedure for reassembly.

Ground screw

Motor Ground Lead

Figure 3-19 Motor Assembly

Spring Clamp

Figure 3-18 Upper Scroll Assembly

3.5.5Motor Assembly and Condenser Fan Removal

a.Remove exterior cover assembly. Refer to paragraph 3.5.1.

b.Remove control box assembly. Refer to paragraph 3.5.3.

c.Remove upper scroll assembly. Refer to paragraph 3.5.4.

d.Remove 4 screws securing the condenser cover to the condenser orifice. (See Figure 3-24.)

e.Carefully disconnect motor wire terminations from within the control box.

f.Remove 1 screw securing the motor ground lead to the motor bracket assembly. (See Figure 3-19)

g.Using flat--nosed pliers, depress the motor spring clamp and slide it off of the condenser fan (See Figure 3-20).

h.Lift and slide motor towards evaporator coil to remove condenser fan from the motor shaft.

3-7

Figure 3-20 Spring Clamp Removal

Motor Clip

Figure 3-21 Motor Clip Removal

T--298

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Contents Model AirV AirV Maintenance Precautions Safety SummaryGeneral Safety Notices Operating PrecautionsSpecific Warnings and Cautions Specific Warning and Caution StatementsSafety 298 Table of Contents Table of Contents Figure Number List of FiguresTable Number List of TablesDesign Change Descriptions Section DescriptionIntroduction Serial Number IdentificationCeiling Unit Upper Unit RoofMANUAL--FORM no Equipment Covered Type of Manual Additional Support ManualsFor Part no Ceiling Unit Component Identification Free--Blow Component Identification -- Low Profile -- Upper Unit Component Listing--Ceiling Unit For Ducted Systems Return AIR Supply AIRFree Blow Type START--UP CationsRefrigerant CYCLE--STANDARD System Refrigerant Cycle -- Heat Pump Refrigerant Flow Schematic -- Heat Pump -- Cool Mode CoolingPage Section Troubleshooting Insufficient Cooling Heater Cycles on Limit Switch HEAT/ Cool Version onlyInsufficient COOLING, Cooling AIR not Adequate Condenser AIR not AdequateInadequate Heat HEAT--PUMP Clearing Diagnostic AlarmsPriority Malfunction Preventative Maintenance Section Service and MaintenanceService -- General Ceiling Grill -- Free Blow 3.3.3 Ceiling Panel Removal Indoor Thermostat 3.3.7 Air Sweep Removal Indoor Thermostat RemovalCeiling Unit -- Ducted Systems Control Box Assembly RemovalFilter Removal PCB Display Removal Service -- Upper Unit -- STANDARD, HC & HPFuse Removal 15 Control Box Compressor Replacement19 Motor Assembly Upper Scroll Assembly Removal23 Blower Wheel Air Handling System RemovalLine Voltage -- 10% 27 Upper Scroll Assembly Locking Tabs b. & Screw Locations c 30 Condenser Fan Assembly Retaining Ring 34 Evaporator Motor Locking Tabs Condenser Motor RemovalFahrenheit Capacitor RemovalChange from Fahrenheit to Celsius will Be permanent. It cannot be changed back to38 Remote Control Components LCD Display SET Thermostat ConfigurationCheck Thermostat Operation Upper Unit Powerbox AssemblyThermostat Ac to ry Wiri ng Fie ld Wiri ng Thermostat Powerbox AssemblyUpper Unit Schematic -- Standard & HC Section Wiring SchematicsCeiling Unit Schematic -- Cooling Only Heat Pump -- Ceiling Unit -- Free Blow Heat Pump -- Upper Unit -- Ducted Wall Mounted Thermostats 10 Ceiling Unit -- Wall Thermostat -- Ducted & Free BlowCeiling Unit -- Ducted Systems Ceiling Unit -- Free Blow Index