Page 2 - Roof Top Air Conditioning Components; BUS
OPERATION AND SERVICE MANUAL AvantAC t Hybrid Roof Top Air Conditioning Components BUS AIR CONDITIONING EQUIPMENT
Page 3 - TABLE OF CONTENTS; PARAGRAPH NUMBER
i T-- 341 TABLE OF CONTENTS PARAGRAPH NUMBER Page SAFETY SUMMARY Safety-- 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DESCRIPTION 1-- 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 7 - LIST OF ILLUSTRATIONS; FIGURE NUMBER; LIST OF TABLES; TABLE NUMBER
v T-- 341 LIST OF ILLUSTRATIONS FIGURE NUMBER Page Figure 1-- 1 Component Identification 1-- 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 1-- 2 Standard Module Components 1-- 2 . . . . . . . . . . . . . . . . . . . ....
Page 8 - SAFETY SUMMARY; SAFETY PRECATIONS; WARNING; GENERAL SAFETY NOTICES; MAINTENANCE PRECAUTIONS
T-- 341 Safety -- 1 SAFETY SUMMARY SAFETY PRECATIONS Your Carrier Transicold air-- conditioning unit has been designed with the safety of the operator in mind. During normaloperation, all moving parts are fully enclosed to help prevent injury. During all inspections and problem troubleshooting, you ...
Page 11 - INTRODUCTION
1-- 1 T-- 341 SECTION 1 DESCRIPTION 1.1 INTRODUCTION This manual contains operating instructions, serviceinstructions and electrical data for the AvantAC t Electric Roof-- Top Air Conditioning and Heating Systemcomponents furnished by Carrier Transicold. Additionalsupport manuals are referenced in T...
Page 12 - Equipment Identification
1-- 2 T-- 341 13 5 3 2 6 11 7 4 16 8 Equipment Identification 7 2 19 22 21 20 18 15 10 19 & 23 13 14 16 1. Heater Coil (2) 2. Evaporator Coil (2) 3. Accumulator 4. Suction Pressure Transducer 5. Discharge Pressure Transducer 6. Discharge Pressure Switch 7. Compressor Temperature Switch 8. Compre...
Page 14 - Figure 1-- 4 Water Cooler Module Components
1-- 4 T-- 341 EquipmentIdentification 13 3 16 17 1 14 11 2 4 8 7 6 5 15 12 9 & 10 1. Inverter/Microprocessor 2. Condenser Fan 3. Fusible Plug (Location) 4. Condenser Coil (2) 5. Accumulator 6. Suction Pressure Transducer 7. Discharge Pressure Transducer 8. Discharge Pressure Switch 9. Compressor...
Page 15 - GENERAL DESCRIPTION
1-- 5 T-- 341 1.4 GENERAL DESCRIPTION 1.4.1 Main Disconnect Switch The main disconnect switch is mounted near the powersupply. Actual location is determined by the coach builder. It is used to connect and disconnect 650VDCpower from the rest of the system. 1.4.2 24VDC On/Off Switch A 24VDC on/off sw...
Page 18 - Refrigerant Flow; Heat; Master
1-- 8 T-- 341 refrigerant; therefore the cooler air is circulated to theinterior of the vehicle. The transfer of heat from the air to the low temperatureliquid refrigerant in the evaporator causes the liquid to vaporize. This low temperature, low pressure vaporpasses through the suction line to the ...
Page 19 - STARTING, STOPPING AND OPERATING INSTRUCTIONS
2-- 1 T-- 341 SECTION 2 OPERATION 2.1 STARTING, STOPPING AND OPERATING INSTRUCTIONS 10 7 8 9 F 72.0 AVANTAC 1 6 5 4 3 2 KEYS 1. Display 2. Plus Key 3. Minus Key 4. Recirculate/Fresh Air (Flap) 5. Blower Control Key 6. Automatic Climate Control (A/C) B LEDS 7. Fresh Air Open (Green) 8. Manual Blower ...
Page 22 - Evaporator Fan
2-- 4 T-- 341 2.2.7 EVCU Power Set PointThe EVCU will determine and set power limits to the A/Csystem.2.2.8 Pressure DifferenceThe compressor will be enabled to run if the pressuredifference between discharge and suction is less than acertain value. The pressure difference value willconsider R-- 134...
Page 25 - SYSTEM ALARMS
T-341 3-- 1 SECTION 3 TROUBLESHOOTING WARNING Be aware of HIGH VOLTAGE supplied to this equipment from the vehicle high voltage system and/orshore power source and that the equipment may start automatically. Do not attempt to service thisequipment without proper training. Electrical power within thi...
Page 30 - NOTE; HYPERTERMINAL SETUP
T-- 341 4-- 1 SECTION 4 TECHNICIAN INTERFACE 4.1 INTRODUCTION (LAPTOP) The following instructions are intended for field servicetechnician’s information for the connection of a laptopcomputer to the Carrier AvantAC Electric Bus RooftopA/C Systems. This will allow access for systemconfiguration and d...
Page 32 - PAGE DISPLAYS
T-- 341 4-- 3 4.4 PAGE DISPLAYS 4.4.1 Page 1 -- System Overview and Automatic Control 1 EVCU AC On AC PWR UpLim LoLim Conn1 Conn2 0 0 0 0 0 0 AVANTAC TotalA TotalP Conn1 Conn2 Stat1 Stat2 0 0 0 0 0 0 INV INV0 INV1 INV2 INV3 INV4 COOLER RUN 0 0 0 0 0 0 RET SP 22.0 22.0 22.0 22.0 22.0 22.0 DC BUS 15 1...
Page 43 - SECTION 5; SERVICE
T-- 341 5-- 1 SECTION 5 SERVICE WARNING Be aware of HIGH VOLTAGE supplied to this equipment from the vehicle high voltage system and/orshore power source and that the equipment may start automatically. Do not attempt to service thisequipment without proper training. Electrical power within this equi...
Page 44 - INSTALLING MANIFOLD GAUGE SET
T-- 341 5-- 2 Condenser Cover Evaporator Cover Condenser Cover Figure 5-- 1 System Cover Removal 5.3 REMOVINGTOP COVER (CONDENSER) The condenser cover assembly incorporates thecondenser air inlet grills and the condenser fan grills(See Figure 5-- 1.). To remove the cover from thecondenser assembly d...
Page 45 - CAUTION; REMOVING THE REFRIGERANT CHARGE
T-- 341 5-- 3 CAUTION To prevent trapping liquid refrigerant in themanifold gauge set be sure set is brought tosuction pressure before disconnecting. b. Backseat both field service couplers and frontseat both manifold set hand valves. Remove the couplersfrom the access valves. c. Remove both R-- 134...
Page 46 - Figure 5-- 3 Checking High Pressure Switch
T-- 341 5-- 4 5.7.3 Procedure for Evacuation and Dehydrating System (Triple Evacuation) a. Remove refrigerant using a refrigerant recovery sys- tem. b. The recommended method is connecting lines (re- frigerant hoses designed for vacuum service) as de-scribed in 5.4. c. Make sure vacuum pump valve is...
Page 48 - NOTES; REPLACING RETURN AIR FILTERS
T-- 341 5-- 6 c. Remove refrigerant using a refrigerant recovery sys- tem (Refer to paragraph 5.7.3). d. Remove the high pressure switch. e. Cut the suction and discharge tube as close to the compressor as possible. f. Remove the four bolts holding the compressor/base assembly to the condenser frame...
Page 52 - SECTION 6; SHORE POWER CONTROL BOX; SHORE POWER REQUIREMENT
T-341 6-- 1 SECTION 6 SHORE POWER CONTROL BOX WARNING Be aware of HIGH VOLTAGE supplied to this equipment from the vehicle high voltage system and/orshore power source and that the equipment may start automatically. Do not attempt to service thisequipment without proper training. Electrical power wi...
Page 53 - SHORE POWER OPERATION
T-341 6-- 2 6.2 SHORE POWER OPERATION In the event that shore power is desired, the shorepower control box converts 460VAC nominal power to650VDC power that is supplied to the air conditioningsafety box. a. The vehicle engine should be OFF. b. An interlock is built into the system to prevent shore p...
Page 60 - INDEX
INDEX Index -- 1 T-- 341 A Air Filter, 5-- 6 AIR FLOW, 1-- 7 Alarm, 3-- 1 Alarm Codes, 3-- 1 Alarm Queue, 3-- 1 Ambient Air Temperature, 2-- 3 Ambient Lockout, 1-- 7 B Boot Loader, 4-- 12 C Circuit Breaker, 1-- 7 Compressor, 5-- 5, 5-- 6 Condenser Discharge Set Point, 2-- 3 Condenser Fan, 1-- 6 Cond...
