Related Manuals for Carrier 68RV11302A
Summary of Contents for Carrier 68RV11302A
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Page 1: Service Manual
Transport Air Conditioning Transport Air Conditioning GRN/YEL EVAP. SERVICE MANUAL MODEL AirV Rooftop Air Conditioning Systems T--298 Rev D... - Page 2 SERVICE MANUAL AirV AIR CONDITIONING AND HEATING EQUIPMENT MODELS 68RV11302A 68RV14102A 68RV14103A 68RV14112A 68RV15102A 68RV15103A...
- Page 3 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.
- Page 4 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...
- Page 5 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.
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Page 6: Table Of Contents
TABLE OF CONTENTS PARAGRAPH NUMBER Page DESCRIPTION ................INTRODUCTION . - Page 7 TABLE OF CONTENTS - Continued CEILING UNIT - DUCTED SYSTEMS ........... 3.4.1 Filter Removal .
- Page 8 TABLE OF CONTENTS - Continued 3.11 CHECK THERMOSTAT OPERATION ........... 3-16 3.11.1 Temperature Display .
- Page 9 LIST OF FIGURES Figure 3-26 Cover Assembly - Low Profile ............3-10 Figure 3-27 Upper Scroll Assembly Locking Tabs (b.) &...
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Page 10: Description
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 The AirV units are two piece systems, consisting of the Carrier Upper Unit and the Ceiling unit. -
Page 11: Table 1-1 Model Chart
115V Standard System 115V Standard System 68RV14102A 99--00468--01 115/1/60 12.8 Ivory 99--00468--02 220/1/50 White 220V Standard System 220V Standard System 5.3 Cool 5.3 Cool 68RV11302A 6.7 Heat 99--00468--03 220/1/50 Ivory 99--00468--08 115/1/60 14.5 White High Capacity High Capacity 68RV15102A 99--00468--09 115/1/60 14.5... -
Page 12: Figure 1-2 Roof Unit Component Identification
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 71LD6A54070 AirV 115 Volts--Ducted (Cool Only) Owner’s Guide 99--00469--06 99--00469--08... -
Page 13: Figure 1-3 Ceiling Unit Component Identification (Free-Blow)
Ceiling Panel Assembly Control Assembly Ceiling Grill Assembly Control Box Cover Figure 1-3 Ceiling Unit Component Identification (Free- -Blow) T--298... -
Page 14: Figure 1-4 Component Identification - Low Profile - Upper Unit
Cover Assembly Condenser Coil Scroll Assembly -- Upper Scroll Assembly -- Lower Condenser Fan Evaporator Coil Condenser Motor 10. Compressor Evaporator Motor 11. Base Pan Assembly Evaporator Blower Wheel See Figure 1-3 for Ceiling Package (Free--Blow) Figure 1-4 Component Identification - - Low Profile - - Upper Unit T--298... -
Page 15: Figure 1-5 Component Listing-Ceiling Unit For Ducted Systems
Telescoping Divider (3 different sizes available) Remote Control Assembly Divider Assembly Remote Control Bracket Assembly Frame Panel, Insulation Assembly Filter Assemblies (2) Control Box Assembly 10. PCB Cover Control Box Cover 11. PCB Main Assembly Suction Packing Assembly 12. PCB Display Figure 1-5 Component Listing- -Ceiling Unit For Ducted Systems T--298... -
Page 16: Figure 1-6 Ducted System Air Flow Arrangement
SCHEMATIC VIEW SUPPLY AIR SUPPLY AIR RETURN AIR INSTALLED VIEW Vehicle Duct System (Connection) Control Box Assembly Telescoping Divider (3 different sizes available) Supply Air Discharge Area Return Air Suction Area Figure 1-6 Ducted System Air Flow Arrangement T--298... -
Page 17: Figure 1-7 Serial Number Locations
Serial number of Upper Unit Upper Unit Serial Number of Ceiling Unit Ceiling Uni (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 Ducted Type (With Grille Removed) -
Page 18: Airv System Component Specifications
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. -
Page 19: Refrigerant Cycle - Heat Pump
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. -
Page 20: Heating
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, The capillary tube meters the flow of liquid refrigerant to located in the ceiling unit, calls for heat The system... -
Page 21: Troubleshooting
SECTION 2 TROUBLESHOOTING For ducted units, the green operation indicator LED (SeeFigure 3-9) will flash if there is a problem. Refer to Table 2- -1 for diagnostic information. SYMPTOM AND PROBABLE CAUSE PROBABLE REMEDY 2.1 NO POWER TO UNIT 1. Master switch off 1. -
Page 22: Cycles On Compressor Overload
SYSTEM AND PROBABLE CAUSE PROBABLE REMEDY 2.6 CYCLES ON COMPRESSOR OVERLOAD 1. Defective run capacitor 1. Replace capacitor -- Refer to Paragraph 3.5.8 2. Defective compressor bearings or valves 2. Replace unit. 3. Greatly restricted evaporator air, iced evaporator 3. Defrost evaporator coil. coil. -
Page 23: Inadequate Heat (Free-Blow Heat Only)
SYSTEM AND PROBABLE CAUSE PROBABLE REMEDY 2.14 INADEQUATE HEAT (FREE- -BLOW HEAT ONLY) 1. No heat from heat strip. 1. Verify AMP draw . ( 13.8 AMP) Verify resistance through heating element. (9 OHM) Check bi--metal switch. If open, replace switch. 2.15 INADEQUATE HEAT (HEAT- -PUMP) NOTE: Allow unit to operate 15 minutes after switch- ing from cooling mode. -
Page 24: Table 2-1 System Self-Diagnostics Function (Ducted Remote)
Table 2- -1 System Self- -diagnostics Function (Ducted Remote) Flashes Error Codes Error Contents Display Pattern Allowed Modes (Priority) (Malfunction) ROOM AIR THERM- FAN Mode 0.5 sec. ISTOR FAILURE (Twice) 3sec 3sec INDOOR COIL FAN Mode 0.5 sec (3 Times) THERMISTOR FAIL- FURNACE Mode 3sec. -
Page 25: Service And Maintenance
OFF position and disconnect all electrical power. General Notes—These Service Instructions are b. Remove 4 screws located on the ceiling grill, making provided to assist the trained and qualified Carrier sure to support the weight of the grill. service technician in repairing or replacing components of the AirV units. -
Page 26: Ceiling Panel Removal
d. To replace the grill, place the grill up against the ceil- Heat Strip ing panel and align the screw holes in the grill with the ceiling panel. Connection e. Replace 4 screws. Heater Assembly Option Mounting Screws Figure 3-4 Ceiling Panel With Heat Option 3.3.4 Master Control Switch To remove the master control switch, do the following: a. -
Page 27: Indoor Thermostat Removal
3.3.6 Indoor Thermostat Removal To remove the indoor thermostat (Figure 3-6) do the following: Air Sweep Motor 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. -
Page 28: Figure 3-9 Filter Removal - Ducted Unit
3.4 CEILING UNIT - - DUCTED SYSTEMS c. Remove two screws securing control box cover to control box assembly. See Figure 3-11. 3.4.1 Filter Removal d. Remove control box assembly cover. The filters (Figure 3-9) are located in the ceiling grill. To remove the filters, do the following: a. -
Page 29: Figure 3-12 Control Box Assembly - Ducted
3.4.5 PCB Display Removal 115V AC To remove the PCB display assembly (Figure 3-13) do the following. 12V DC a. Remove ceiling grill. Refer to paragraph 3.4.2. b. Push large clip away from PCB display assembly. c. Push center clip towards large clip. Fuse d. -
Page 30: Figure 3-16 Control Box Removal
3.5.2 Compressor Replacement Observe the same procedures for rotary compressors as for reciprocating compressors. a. Follow all safety codes. Reminder: use protective goggles, work gloves, and water soaked quenching cloth. b. Remove exterior cover. refer to paragraph 3.5.1. Dis- connect all wiring from the compressor. c. -
Page 31: Figure 3-18 Upper Scroll Assembly
3.5.4 Upper Scroll Assembly Removal i. Remove condenser fan from motor shaft and lift fan out through the top of the condenser orifice. (See a. Remove exterior cover assembly. Refer to paragraph Figure 3-22) 3.5.1. j. Remove motor assembly. b. Remove 4 screws securing upper scroll assembly to the lower scroll assembly. -
Page 32: Figure 3-22 Condenser Fan Removal
3.5.7 Air Handling System 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 motor assembly. Refer to paragraph 3.5.5. e. -
Page 33: Figure 3-25 Set-Up For Discharging A Capacitor
3.5.8 Capacitor Troubleshooting WARNING WARNING Do not touch the metal of the screwdriver when discharging the capacitor. You could receive a shock. Disconnect power to the AirV unit before checking the capacitor. b. After the capacitor has been discharged and all wires removed from the capacitor terminals, use an ohm-- To test capacitor to determine if good, open or shorted, meter to test its resistance. -
Page 34: Figure 3-26 Cover Assembly - Low Profile
3.6 SERVICE - - UPPER UNIT - - LOW PROFILE 3.6.1 Exterior Cover Removal CAUTION Coil fins are sharp. Use care when removing the cover form the base pan to avoid per- sonal injury. To remove the exterior cover, do the following: a. -
Page 35: Figure 3-29 Upper Scroll & Control Box Cover Removed
Evaporator Coil Retaining Ring Figure 3-30 Condenser Fan Assembly & Retaining Ring Fan Stop Condenser Coil Condenser Motor 13MM 13MM Bolt Bolt Grommet Figure 3-29 Upper Scroll & Control Box Cover Removed Figure 3-31 Condenser Fan Motor & Fan Assembly Stop 3.6.3 Condenser Fan Assembly Removal To remove condenser fan assembly, do the following: a. -
Page 36: Figure 3-33 Condenser Motor Ground
3.6.4 Condenser Motor Removal To remove condenser fan motor, do the following: a. Perform steps outlined in Section 3.6.2. Blower Side Locking Tabs b. Remove (3) 13MM bolts (See Figure 3-31). c. Remove (3) Grommets. Inspect, replace or reuse. d. Cut Tie--Wraps & discard (2 locations). When re- assembling, tie--wrap at same 2 locations. -
Page 37: Figure 3-36 Evaporator Blower Wheel (Flush With End Of Motor Shaft)
NOTE NOTE When reassembling the blower wheel on to When placing the evaporator motor/blower the motor shaft ensure that the blower assembly back into the lower scroll assem- wheel is flush with the end of the motor bly cradle, make sure that the assembly is shaft (SeeFigure 3-36). -
Page 38: Figure 3-38 Remote Control Components
a. Remove the batteries from the remote control. f. Carefully cut the FR9 jumper wire. b. Carefully remove the remote cover by inserting a nar- g. Reverse above procedure for reassembly. row flat object between the cover and remote body and prying apart. -
Page 39: Thermostat Installation And Start-Up Instructions (Wall Mounted)
3.7 THERMOSTAT INSTALLATION AND START- - 2.Disconnect wires from existing thermostat, one at UP INSTRUCTIONS (WALL MOUNTED) a time. Be careful not to allow wires to fall back into the wall. 3.7.1 Introduction 3.As each wire is disconnected, record wire color The thermostat is a wall mounted, low--voltage and terminal marking. -
Page 40: Check Thermostat Operation
NOTE c. Press MODE button once to display offset value. If the FAN button is pressed again or if no button d. Use UP & DOWN buttons to select a value between is pressed for two minutes, the thermostat will --5 and 5. -
Page 41: Timeguard Timer
3.11.2 Timeguard Timer minutes regardless of demand). However, pressing UP and FAN buttons simultaneously or changing the set A 3--minute timeguard is built into the thermostat point will override the timer for 1 cycle. immediately upon power up, and any time the 3.11.4 Minimum On Timer compressor (output “Y”) turns off. -
Page 42: Figure 3-41 Wall Thermostat Wiring Diagram - Heat/Cool Model
Factory Wiring Field Wiring UPPER UNIT Motor Comp. 1 2 3 4 115V AC High Voltage 1 2 3 4 Power Supply THERMOSTAT POWERBOX ASSEMBLY COOL (Compressor) FAN (High) 12VDC LowVoltage FAN (Low) Power Supply Blue Blue 12 VDC (Gnd) + 12VDC FURNACE CEILING UNIT... -
Page 43: Wiring Schematics
SECTION 4 WIRING SCHEMATICS 4.1 INTRODUCTION This Section contains wiring schematics for the AirV units. Figure 4--1 is the schematic for the standard upper unit assembly and it is applicable to all standard units. Figure 4--2 is the schematic for the Low Profile upper unit assembly. Figure 4--3 is the schematic for a free blow ceiling unit without heat while Figure 4--4 is a free blow unit with heat. -
Page 44: Figure 4-3 Ceiling Unit Schematic - Cooling Only
SWITCH CONTACTS MADE POSITION HIGH FAN 1--4 . 1--6 LOW FAN 1--2 . 1--6 NONE LOW COOL 1--2 . 1--6 . 1--8 1--4 . 1--6 . 1--8 HIGH COOL O (OFF) I (ON) 2 -- 1 GRN/YEL 115 VAC LEGEND SUPPLY WIRE ASM : AIR SWEEP MOTOR... - Page 45 FAN MOTOR OLP: OVERLOAD PROTECTION PTC: START THERMISTER RVC: REVERSING VALVE COIL GRN/YEL GRN/YEL GRN/YEL EVAP. CONTROL BLK(BLU) CAPACITOR (IF USED) FREEZE COMPRESSOR SWITCH Figure 4- -6 Heat Pump - - Upper Unit - - Free Blow SWITCH CONTACTS MADE POSITION NONE LOW FAN...
- Page 46 LEGEND ODC Th ODA Th CN :HOUSING CONNECTOR FAN MOTOR PTC :START THERMISTOR OLP :OVERLOAD PROTECTOR RVC :REVERSING VALVE COIL ODA Th :OUTDOOR AIR THERMISTOR GRN/YEL ODC Th :OUTDOOR COIL THERMISTOR GRN/YEL CONTROL EVAP. CAPACITOR COMPRESSOR (IF USED) BLK(BLU) Figure 4- -8 Heat Pump - - Upper Unit - - Ducted LEGEND PLUG CONNECTS TO UPPER UNIT.
- Page 47 Figure 4- -10 Ceiling Unit - - Wall Thermostat - - Ducted & Free Blow 4.2 WALL MOUNTED THERMOSTATS For proper wiring of Wall Mounted Thermostats as an accessory, refer to Figure 3-40 (Wall Thermostat Wiring Diagram -- Cool Only Model) or Figure 3-41 (Wall Thermostat Wiring Diagram -- Heat/Cool Model). T--298...
- Page 48 INDEX Indoor Thermostat , 3-3 Air Handling System , 3-8 INTRODUCTION, 1-1, 4-1 Air Sweep Removal, 3-3 Air Sweep Switch , 3-2 LCD DISPLAY, 3-15, 3-16 Leaks, 3-1 Capacitor Testing, 3-9 Capacitor Testing and Replacement, 3-9 Ceiling Grill -- Ducted, 3-4 Main Pcb Board, 3-5 Ceiling Grill -- Free Blow, 3-1 Master Control Switch, 3-2...
- Page 49 Tel: 1- -800- -673- -2431 Transport Air Conditioning Group Fax: 1- -717- -764- -0401 P.O. Box 4805 Syracuse, N.Y. 13221 U.S A www.carrier.transicold.com A member of the United Technologies Corporation family. Stock symbol UTX ©2006 Carrier Corporation D Printed in U. S. A. 0606...