Carrier Air 4 Life Manual
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R OPERATOR’S MANUAL for SPLIT SYSTEM Bus Air Conditioning Units T--326 Rev -- Transport Air Conditioning TRANSPORT AIR CONDITIONING
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i CONTENTS Page Introduction 1............................ Safety 3.................................. Unit/System Information 4................. 1.1 WHAT IS AIR CONDITIONING 4............. 1.2 SPLIT SYSTEM 4.......................... 1.3 SYSTEM DESIGNATIONS 4................ 1.4 SYSTEM COMPONENTS 4................. 1.5 MODEL AND SERIAL NUMBER TAGS 6...... 1.6 SYSTEM REQUIREMENTS LABEL 8........ Unit Operation 9.......................... 2.1 OPERATING INSTRUCTIONS 9............. 2.2 DRIVER’S CONTROL PANEL...
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1 INTRODUCTION SPLITSYSTEMOPERATOR’SMANUAL This guide has been prepared for the operator of Carrier Transport Air Conditioning systems.It contains basic instructions for the daily operation of the air conditioning systemas well as safety information, and other information that will help you to maintain a comfort level for your self and your passengers. Please take the time to read the information contained in this booklet and refer to it whenever you have a question about the operation of your Carrier...
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3T-- 326 SAFETY Your Carrier Transport Air Conditioning system has been designed with the safety of the operator in mind. During normal operation, all moving parts are fully enclosed to help prevent injury. During all pre-trip inspections, daily inspections, and problem troubleshooting, you may be exposed to moving parts; please stay clear of all moving parts when the unit is in operation. WARNING Beware of unannounced starting of the unit. The unit may cycle the fans and operating compressor unex-...
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4 T-- 326 UNIT/SYSTEMINFORMATION 1.1 WHAT IS AIR CONDITIONING Air Conditioning is the cooling, heating, dehumidification, and filtration of the air within the passenger compartment of a vehicle. 1.2 SPLIT SYSTEM A Split System normally includes an Evaporator(s), a Condenser(s) a Compressor(s) and interconnecting refrigerant hoses, fittings, and electrical harnesses and controls. A listing of the system components, along with specific data for each, is provided in Paragraph 1.4. 1.3 SYSTEM DESIGNATIONS...
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5T-- 326 Air In Air OutAir In Air Out10 1 23 45 6 789 1. Compressor 2. Electro-- Magnetic Clutch 3. Discharge Line 4. Condenser 5. Filter Dryer/Sight Glass Assembly6. Liquid Line 7. Evaporator 8. Block Valve (TXV) 9. Freezestat-- (Coil freeze-- up thermostat) 10. Suction Line Figure 1-1 Component Locations Filter/Dryer --The filter/dryer removes moisture and particulate matter from the refrigerant. Expansion/Block Valve --Meters the refrigerant flow into the evaporator coil. The majority of the Gen 4...
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6 T-- 326 Pressure Switch --The systems use high and low pressure switches wired in series to control the power circuit of the compressor clutch relay. If either pressure switch opens, interrupting the circuit to the clutch relay, the operation of the compressor will stop. When conditions return to normal the switch will automatically reset and the compressor will resume operating. The switches are non-- adjustable. Freeze--Up Thermostat --Freeze-- up thermostats are used to prevent ice formation on the...
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7T-- 326 Figure 1-3 Roof Mounted Condensers EM-- 9 Location Figure 1-4 Rear/Side Mounted Gen IV Evaporators NOTE The EM-- 9 evaporator data tag is located on the side of the evaporator assembly, not between the blower assemblies. Figure 1-5 Rear/Side Mounted Gen V Evaporators
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8 T-- 326 1.6 SYSTEM REQUIREMENTS LABEL The system requirements label (See Figure 1-6) is conveniently located within the vehicle’s engine compartment. This label, when properly completed by the installer, will give the servicing technician the refrigerant and oil charge(s), evaporator(s), condenser(s), and compressor(s) serial numbers, the drive belt(s) number, mount kit number, the date of installation and the installer. Figure 1-6 System Requirement Label