Carrier T--298- Manuals

Page 2 - MODELS; AirV; AIR CONDITIONING AND

SERVICE MANUAL For MODELS 68RV11302A 68RV14102A68RV14103A 68RV14112A 68RV15102A68RV15103A AirV AIR CONDITIONING AND HEATING EQUIPMENT

Page 3 - SAFETY SUMMARY; GENERAL SAFETY NOTICES; Always wear safety glasses.; MAINTENANCE PRECAUTIONS; Disconnect power to the AirV unit before checking the capacitor.

T-298 Safety-- i SAFETY SUMMARY GENERAL SAFETY NOTICES The following general safety notices supplement the specific warnings and cautions appearing elsewhere inthis manual. They are recommended precautions that must be understood and applied during operation andmaintenance of the equipment covered h...

Page 6 - TABLE OF CONTENTS

i T-- 298 TABLE OF CONTENTS PARAGRAPH NUMBER Page DESCRIPTION 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 INTRODUCTION 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 7 - TABLE OF CONTENTS - Continued

ii T-- 298 TABLE OF CONTENTS - Continued 3.4 CEILING UNIT - DUCTED SYSTEMS 3-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4.1 Filter Removal 3-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 8 - WIRING SCHEMATICS; LIST OF FIGURES; FIGURE NUMBER

iii T-- 298 TABLE OF CONTENTS - Continued 3.11 CHECK THERMOSTAT OPERATION 3-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.11.1 Temperature Display 3-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 9 - TABLE NUMBER

iv T-- 298 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 . . . . . . . . . . . . . . . . ....

Page 10 - INTRODUCTION; Carrier; DESIGN CHANGE DESCRIPTIONS

T-- 298 1-1 SECTION 1 DESCRIPTION 1.1 INTRODUCTION This manual contains service instructions and electricaldata for the AirV, Carrier Transport Air Conditioning’sRecreational Vehicle air conditioning unit. The AirV units are two piece systems, consisting of theUpper Unit and the Ceiling unit. The Up...

Page 15 - Figure 1-5 Component Listing -- Ceiling Unit For Ducted Systems

T-- 298 1-6 1 2 3 4 5 6 7 8 9 10 11 12 1. Telescoping Divider (3 different sizes available) 2. Divider Assembly 3. Frame Panel, Insulation Assembly 4. Control Box Assembly 5. Control Box Cover 6. Suction Packing Assembly 7. Remote Control Assembly 8. Remote Control Bracket Assembly 9. Filter Assembl...

Page 16 - SUPPLY AIR; Telescoping Divider (3 different sizes available); Figure 1-6 Ducted System Air Flow Arrangement

T-- 298 1-7 1 2 3 4 5 SCHEMATIC VIEW INSTALLED VIEW 3 2 1 1 4 5 SUPPLY AIR RETURN AIR SUPPLY AIR 1. Vehicle Duct System (Connection) 2. Telescoping Divider (3 different sizes available) 3. Return Air Suction Area 4. Control Box Assembly 5. Supply Air Discharge Area Figure 1-6 Ducted System Air Flow ...

Page 17 - Figure 1-7 Serial Number Locations

T-- 298 1-8 Serial Numberof Ceiling Unit Serial numberof Upper Unit Upper Unit Ceiling Uni t (Cover Removed) Free Blow Type Bottom View After Installation (With Grille Removed) Ceiling Assembly Frame Serial Number of Ceiling Unit (Side of Control Box) Bottom ofUpper Unit Serial Numberof Upper Unit D...

Page 18 - High Capacity

T-- 298 1-9 1.4 AirV SYSTEM COMPONENT SPECIFI-CATIONS 1.4.1 Refrigerant Charge Standard -- High Capacity -- Heat Pump R-- 22 -- 15.9 Ounces Low Profile (All) R-- 22 -- 16.9 Ounces 1.4.2 Compressor -- 115 Volts, 60 Cycles, 1 Phase a. Locked Rotor Amps -- Standard -- High Capacity -- Heat Pump 64.5 AM...

Page 23 - NOTE: Allow unit to operate 15 minutes after switch-; Clearing Diagnostic Alarms

T-- 298 2-3 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) NOT...

Page 25 - CAUTION

T-- 298 3-1 SECTION 3 SERVICE AND MAINTENANCE 3.1 PREVENTATIVE MAINTENANCE Cleaning-- Clean evaporator coil and condenser coil.Hold flashlight behind coil to see if all spaces are clear.Dust accumulation obstructs or reduces airflow andresults in loss of cooling capacity. Both coils may bevacuumed w...

Page 26 - Figure 3-3 Ceiling Panel Assembly

T-- 298 3-2 d. To replace the grill, place the grill up against the ceil- ing panel and align the screw holes in the grill with theceiling panel. e. Replace 4 screws. Mounting Screws Figure 3-2 Ceiling Grill -- Free Blow 3.3.3 Ceiling Panel Removal To remove the ceiling panel (Figure 3-3) do thefoll...

Page 30 - WARNING; Figure 3-15 Control Box

T-- 298 3-6 3.5.2 Compressor Replacement Observe the same procedures for rotary compressorsas for reciprocating compressors. a. Follow all safety codes. Reminder: use protective goggles, work gloves, and water soaked quenchingcloth. b. Remove exterior cover. refer to paragraph 3.5.1. Dis- connect al...

Page 33 - Capacitor Troubleshooting; Capacitor Testing and Replacement; 0 Positive Temperature Coefficient Thermister

T-- 298 3-9 3.5.8 Capacitor Troubleshooting WARNING Disconnect power to the AirV unit beforechecking the capacitor. To test capacitor to determine if good, open or shorted,an ohm meter can be used. To determine a capacitor ’scapacitance, a capacitor meter is required. Capacitors showing signs of lea...

Page 34 - Figure 3-27 Upper Scroll Assembly

T-- 298 3-10 3.6 SERVICE -- UPPER UNIT -- LOW PROFILE 3.6.1 Exterior Cover Removal CAUTION Coil fins are sharp. Use care when removingthe cover form the base pan to avoid per-sonal injury. To remove the exterior cover, do the following: a. Before working on unit place the master switch in the OFF po...

Page 38 - Figure 3-38 Remote Control Components

T-- 298 3-14 a. Remove the batteries from the remote control. b. Carefully remove the remote cover by inserting a nar- row flat object between the cover and remote bodyand prying apart. c. Remove the brass screw holding the PCB in place. d. Carefully remove the PCB board from the remote body, making...

Page 41 - Power Supply

T-- 298 3-17 3.11.2 Timeguard Timer A 3-- minute timeguard is built into the thermostatimmediately upon power up, and any time thecompressor (output “Y”) turns off. The compressor willnot turn on until the timeguard has expired. Pressing UPand FAN buttons simultaneously will override thetimeguard fo...

Page 42 - UPPER UNIT

T-- 298 3-18 POWERBOXASSEMBLY UPPER UNIT 1 2 3 4 2 1 1 2 3 4 1 2 3 4 5 1 2 L N2 N1 W Y GH GL C TB Y GH GL R C COOL (Compressor) FAN (High) FAN (Low) 12VDC LowVoltage Power Supply CEILING UNIT FURNACE + 12VDC 12 VDC (Gnd) Motor Comp. 115V AC High Voltage Power Supply Factory Wiring Field Wiring THERM...

Page 43 - This Section contains wiring schematics for the AirV units.

T-- 298 4-1 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. F...

Page 44 - CONTROL

T-- 298 4-2 2P GRN/YEL ORN WHT WHT ASM PL U G C O N N E C T S T O U PPER U N IT . SEE D IAG R A M S U PPL IED W ITH U PPER U N IT F O R AD D ITIO N AL WIR IN G . 4P 2P 1 1 2 3 4 2 { ASW O (OFF) I (ON) 2 2 -- 1 SWITCH POSITION CONTACTS MADE HIGH FAN LOW FAN OFF LOW COOL 1 -- 4 . 1 -- 6 1 -- 2 . 1 -- ...

Page 47 - WALL MOUNTED THERMOSTATS

T-- 298 4-5 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 WiringDiagram -- Cool Only Model) or Figure 3-41 (Wall Thermostat Wiring Diagram -- He...

Page 48 - INDEX

Index -1 T-- 298 INDEX A Air Handling System , 3-8 Air Sweep Removal, 3-3 Air Sweep Switch , 3-2 C Capacitor Testing, 3-9 Capacitor Testing and Replacement, 3-9 Ceiling Grill -- Ducted, 3-4 Ceiling Grill -- Free Blow, 3-1 Ceiling Panel -- Free Blow, 3-2 CEILING UNIT -- DUCTED SYSTEMS, 3-4 CEILING UN...