Carrier T--298 service manual Indoor Thermostat Removal, Indoor Thermostat 3.3.7 Air Sweep Removal

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3.3.6 Indoor Thermostat Removal

To remove the indoor thermostat (Figure 3-6) do the following:

a. Remove ceiling grille. (Refer to paragraph 3.3.2.)

b. Remove 5 screws securing the control assembly (item 3, Figure 1-3) to the control box cover.

c. Remove the indoor thermostat knob by grabbing the outside edge of the knob and pulling it off of the ther- mostat stem.

d.Remove 2 screws that secure the indoor thermostat to the lower control box cover.

e. Carefully disconnect the 2 wires from the indoor ther- mostat.

f.Remove the sensing bulb from the plastic clip.

g.Carefully slide the sensing bulb through the rubber grommet.

h.Remove the thermostat from the control assembly.

i.Reverse above procedure for reassembly.

Thermostat

Sensing Bulb

Figure 3-6 Indoor Thermostat 3.3.7 Air Sweep Removal

To remove the air sweep, do the following:

a. Remove ceiling grille. (Refer to paragraph 3.3.2.)

b. Remove cam (See Figure 3-3) from air sweep motor shaft.

c. Remove 4 screws securing air sweep motor bracket to the ceiling panel assembly.

d. Carefully disconnect air sweep motor wire termina- tions.

e. Remove 2 screws securing air sweep motor (Figure 3-7) to control box and remove motor.

f. Reverse above procedure for reassembly.

Air Sweep Motor

Figure 3-7 Air sweep motor 3.3.8 Heat Strip Assembly Removal

To remove the heat strip assembly (Figure 3-8) do the following:

a. Remove ceiling grille. (Refer to paragraph 3.3.2.)

b. Unplug electrical connection at air sweep motor as- sembly.

c. Remove two screws securing heat strip assembly to the ceiling panel assembly.

d. Slide heat strip assembly away from air sweep motor assembly and pull down, easing the the electrical connection through the access hole.

e. Reverse the procedures for reassembly.

Heat Strip

Figure 3-8 Heat Strip Assembly

3-3

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 RoofAdditional Support Manuals MANUAL--FORM no Equipment Covered Type of ManualFor 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 Cations START--UPRefrigerant 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 Section Service and Maintenance Preventative MaintenanceService -- General Ceiling Grill -- Free Blow 3.3.3 Ceiling Panel Removal Indoor Thermostat 3.3.7 Air Sweep Removal Indoor Thermostat RemovalControl Box Assembly Removal Ceiling Unit -- Ducted SystemsFilter Removal Service -- Upper Unit -- STANDARD, HC & HP PCB Display RemovalFuse 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 Powerbox Assembly Upper UnitThermostat 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