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T Tr ransport ansport A Air ir Conditioning Conditioning
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1 2 C PTC
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SERVICE MANUAL
for
MODEL AirV
Rooftop Air Conditioning Systems
T--298 Rev D
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SERVICE MANUAL For AirV AIR CONDITIONING AND HEATING EQUIPMENT MODELS 68RV11302A 68RV14102A 68RV14103A 68RV14112A 68RV15102A 68RV15103A
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SAFETY SUMMARY GENERAL SAFETY NOTICES The following general safety notices supplement the specific warnings and cautions appearing elsewhere in this manual. They are recommended precautions that must be understood and applied during operation and maintenance of the equipment covered herein. The general safety notices are presented in the following three sections labeled: First Aid, Operating Precautions and Maintenance Precautions. A listing of the specific warnings and cautions appearing elsewh
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SPECIFIC WARNING AND CAUTION STATEMENTS The statements listed below are applicable to the refrigeration unit and appear elsewhere in this manual. These recommended precautions must be understood and applied during operation and maintenance of the equipment covered herein. SPECIFIC WARNINGS AND CAUTIONS WARNING Be sure to observe warnings listed in the safety summary in the front of this manual before performing maintenance on the AirV system WARNING Before working on the unit be sure to first di
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CAUTION Coil fins are sharp. Use care when removing the cover form the base pan to avoid personal injury. CAUTION The change from Fahrenheit to Celsius will be permanent. It cannot be changed back to Fahr- enheit. CAUTION When re--assembling, ensure the battery springs are correctly placed in the battery spring holders. CAUTION Improper wiring or installation may damage thermostat. Wiring must conform to local and national electrical codes. T-298 Safety--iii
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TABLE OF CONTENTS PARAGRAPH NUMBER Page DESCRIPTION ............................................................................... 1-1 1.1 INTRODUCTION ..................................................................... 1-1 1.2 SERIAL NUMBER IDENTIFICATION .................................................... 1-1 1.3 DESIGN CHANGE DESCRIPTIONS .................................................... 1-1 1.4 AirV SYSTEM COMPONENT SPECIFICATIONS ......................................... 1-9 1.4.1 Re
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TABLE OF CONTENTS - Continued 3.4 CEILING UNIT - DUCTED SYSTEMS ................................................... 3-4 3.4.1 Filter Removal .................................................................... 3-4 3.4.2 Ceiling Grill Removal .............................................................. 3-4 3.4.3 Control Box Assembly Removal ..................................................... 3-4 3.4.4 Main PCB Board Removal .......................................................... 3-5 3.4.5
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TABLE OF CONTENTS - Continued 3.11 CHECK THERMOSTAT OPERATION ................................................... 3-16 3.11.1 Temperature Display ............................................................... 3-16 3.11.2 Timeguard Timer .................................................................. 3-17 3.11.3 Cycle Timer ...................................................................... 3-17 3.11.4 Minimum On Timer ................................................................ 3-17 3
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LIST OF FIGURES Figure 3-26 Cover Assembly - Low Profile ....................................................... 3-10 Figure 3-27 Upper Scroll Assembly Locking Tabs (b.) & Screw Locations (c.) ......................... 3-10 Figure 3-28 Upper Scroll Assembly Keeper Tab Release ........................................... 3-10 Figure 3-29 Upper Scroll & Control Box Cover Removed ........................................... 3-11 Figure 3-30 Condenser Fan Assembly & Retaining Ring ....................
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SECTION 1 DESCRIPTION 1.1 INTRODUCTION MODEL No. 68RV14102A This manual contains service instructions and electrical Part No. 99--00468--01 data for the AirV, Carrier Transport Air Conditioning’s Recreational Vehicle air conditioning unit. VOLTS V 115 The AirV units are two piece systems, consisting of the ph 1 hz 60 Carrier Upper Unit and the Ceiling unit. The Upper Unit contains Air Conditioning Btu/h C 13,500 the refrigeration system while the Ceiling Unit contains Division of Carrier Corpora
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Table 1-1. Model Chart UPPER UNIT (ROOF) Model Number Part Number Voltage Amps Color 99--00468--00 115/1/60 12.8 White 11 115 5V V S St ta andar ndard d S Sy ys stte em m 68RV14102A 99--00468--01 115/1/60 12.8 Ivory 99--00468--02 220/1/50 White 2 220 20V V S St ta andar ndard d S Sy ys stte em m 5. 5.3 3 C Cool ool 68RV11302A 6.7 Heat 99--00468--03 220/1/50 Ivory 99--00468--08 115/1/60 14.5 White H Hiig ghC h Ca ap pa ac ciitty y 68RV15102A 99--00468--09 115/1/60 14.5 Ivory 99--00468--04 12.7 Co
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Table 1-2 Additional Support Manuals MANUAL--FORM NO. EQUIPMENT COVERED TYPE OF MANUAL (For) PART NO. 99--00469--00 71LC6A54310 AirV 115 Volts--Free Blow (Cool Only) Owner’s Guide 99--00469--01 99--00469--02 71LH6A54070 AirV 115 Volts--Free Blow (Heat--Cool) Owner’s Guide 99--00469--03 99--00469--06 71LD6A54070 AirV 115 Volts--Ducted (Cool Only) Owner’s Guide 99--00469--08 71LH6A54070 AirV 220 Volts--Free Blow (Heat--Cool) Owner’s Guide 99--00469--09 99--00469--11 71RQ6A5401A AirV 115 Volts--Fre
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1 2 3 4 1. Ceiling Panel Assembly 3. Control Assembly 4. Ceiling Grill Assembly 2. Control Box Cover Figure 1-3 Ceiling Unit Component Identification (Free--Blow) 1-4 T--298
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1 2 3 4 5 9 6 7 8 10 11 1. Cover Assembly 7. Condenser Coil 2. Scroll Assembly -- Upper 8. Scroll Assembly -- Lower 3. Condenser Fan 9. Evaporator Coil 4. Condenser Motor 10. Compressor 5. Evaporator Motor 11. Base Pan Assembly 6. Evaporator Blower Wheel See Figure 1-3 for Ceiling Package (Free--Blow) Figure 1-4 Component Identification -- Low Profile -- Upper Unit 1-5 T--298
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1 2 3 12 11 10 4 5 6 7 9 8 1. Telescoping Divider (3 different sizes available) 7. Remote Control Assembly 2. Divider Assembly 8. Remote Control Bracket Assembly 3. Frame Panel, Insulation Assembly 9. Filter Assemblies (2) 4. Control Box Assembly 10. PCB Cover 5. Control Box Cover 11. PCB Main Assembly 6. Suction Packing Assembly 12. PCB Display Figure 1-5 Component Listing--Ceiling Unit For Ducted Systems 1-6 T--298
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1 2 3 4 5 SCHEMATIC VIEW 1 SUPPLY AIR 5 2 1 3 SUPPLY AIR 4 RETURN AIR INSTALLED VIEW 1. Vehicle Duct System (Connection) 4. Control Box Assembly 2. Telescoping Divider (3 different sizes available) 5. Supply Air Discharge Area 3. Return Air Suction Area Figure 1-6 Ducted System Air Flow Arrangement 1-7 T--298
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Serial number of Upper Unit Upper Unit Serial Number of Ceiling Unit Ceiling Unit (Cover Removed) Free Blow Type Serial Number of Ceiling Unit Ceiling Assembly Frame (Side of Control Box) Bottom of Upper Unit Serial Number Bottom View After Installation of Upper Unit (With Grille Removed) Ducted Type Figure 1-7 Serial Number Locations 1-8 T--298
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1.4 AirV SYSTEM COMPONENT SPECIFI- d. Fully Loaded Amps -- High Capacity CATIONS Cooling -- Approx. 14.5 AMPS Heating -- Approx. 11 AMPS 1.4.1 Refrigerant Charge e. Fully Loaded Amps -- Low Profile Standard -- High Capacity -- Heat Pump Cooling -- Approx. 14.1 AMPS R--22 -- 15.9 Ounces Heating -- Approx. 13.8 AMPS Low Profile (All) f. Fully Loaded Amps -- Heat Pump Cooling -- Approx. 12.8 AMPS R--22 -- 16.9 Ounces Heating -- Approx. 11 AMPS 1.4.2 Compressor -- 115 Volts, 60 Cycles, 1 Phase 1.4.3
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1.7 REFRIGERANT CYCLE -- HEAT PUMP DISCHARGE CAPILLARY LIQUID TUBE INDOOR COIL SUCTION STRAINER REVERSING VALVE ACCUMULATOR COMPRESSOR OUTDOOR COIL Figure 1-9 Refrigerant Flow Schematic -- Heat Pump -- (Cool Mode) 1.7.1 Cooling capillary tube, there is a reduction in pressure and temperature. The cooling cycle is energized when the thermostat, The indoor blower (fan) pulls inside air through the located in the ceiling unit, calls for cooling The system filters, which remove particulate matter, a
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CAPILLARY DISCHARGE TUBE INDOOR COIL LIQUID SUCTION STRAINER REVERSING VALVE ACCUMULATOR COMPRESSOR OUTDOOR COIL Figure 1-10 Refrigerant Flow Schematic -- Heat Pump -- (Heat Mode) 1.7.2 Heating outdoor coil. The strainer removes any impurities within the refrigerant system. The heating cycle is energized when the thermostat, located in the ceiling unit, calls for heat The system The capillary tube meters the flow of liquid refrigerant to the outdoor coil. As the refrigerant flows through the con
