Operation Manual
Contents
1. AVANTAC AVANTAC 1 42. 1 1 LS AVANTAC 2 1 1 6 2 7 3 8 4 9 Si 5 10 6j 2 1 2 1 1 AAMT VO FP FLEE AAPA EE
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6. Ee SERRE AK 13 J C D G H J K L N A OA Y Z R f E Sp JI SZ 2 5 12 3 4 14 OPERATION MANUAL BUS AIR CONDITIONING UNITS AvantAC Classic with CSDD Controller Contents AVANT AC Introduction ni 18 Safety ee oe ET 19 Unit System Information ee 20 1 1 What is Air Conditioning sip rt 20 1 2 Air Conditioning System 20 L SyStem COMPONEDUS 20 1 4 Model And Serial Number TAGS sse 21 Unit Operation ees 22 2 1 Driver Display FUNCTIONS mini 23 Zale Key Functions Engine ON 00mm en 23 2 1 2 Led Functions Engine On 23 22 reene 24 2 3 Operating INStrUCTIONS ooo eeeccesesesescsesescsesestseseesestsssesessestsieestseeseeseeeeeees 24 Sch Display a n FR I aE 24
7. 9 e 10 f 7 8 2 2 10 15 a D c d 2 3 2 3 1 AVANTAC 2 3 2 18 28 C 2 C 2 3 3
8. 2 1 2 AJ 1 C E 1 C g 6 muane sl 1 5 20 40 60 80 100 Jul 10 10 RTE 3 AVANTAC 2 1 3 a b 7 C 8 d
9. 2 3 2 Starting And Interior Temperature Control pp 24 23 3 Automatic Climate CON sse 24 2 04 Ven wen on 25 2 3 5 Manual RANGA 20 NEEN AS 25 2 3 6 Temperature We ea ee 26 2 3 7 Dry Heat Mode Foam a EEE EE 26 2 26 System Maintenance Bill EEN le EE 27 SSE 28 17 Introduction AVANT AC AvantAC Classic Operation Manual 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 system as 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 Transport Air Conditioning system More comprehensive information can be found in the AvantAC Operation and Service Manual This manual can be obtained from your Carrier Transport A C dealer Your air conditioning system has been engineered to provide long trouble free performance when it is properly operated and maintained A comprehensive maintenance program will help to insure that the unit continues to operate reliably Such a maintenance program will also help to control operating costs increase the unit s working life and improve performance Some Vehicles may require information from manuals supplied by the vehicle ma
10. energizes the compressor clutch If the vehicle interior temperature reaches the set point the compressor clutch is switched off If the ambient temperature sensor is in operational cooling is not allowed whenever the ambient temperature is below 2 C Blower If automatic blower control is selected the evaporator blower speed will vary in response to the relationship to the vehicle interior temperature and the controller set point temperature 2 3 4 Vent The blowers may be switched to manual mode of operation by pressing the Blower key s Press the plus A or minus E keys to select one of 6 20 40 60 80 100 and OFF different blower speeds The blowers cannot be switched OFF when Automatic Climate Control is ON When Automatic Climate Control is OFF the blowers stop when the manual blower control is turned to OFF 2 3 5 Manual Reheat The Reheat mode is used to lower the air humidity and to help defogging the Pas windshields Press the Recirculating Fresh Air Key and the Automatic Climate Control Key kJ at the same time to activate Reheat Heating and cooling will be energized for 3 minutes In addition the evaporator blowers will be switched to maximum speed and the fresh air flap will be closed At the end of the of Reheat the functions will return to previouly selected settings Reheat is disabled with ambient temperatures below 2 C or if the ambient air sensor fails EI Unit Opera
11. 1 3 2 12 J AVANTAC 3 3 d
12. TRANSICOLD Carrier Transicold China 1235 201821 86 21 591668684 fH 86 21 59165013 Headquarter No 1235 Ye Cheng Rd Jiading District Shanghai 201821 China l 86 21 59166868 Fax 86 21 59165013 60 DS 200434 86 21 65923817 86 21 65923827 Service Centre No 60 Guang Yue Rd Shanghai 200434 China Tel 86 21 65923817 Fax 86 21 65923827 Ze Carrier 77 66892 00 Rev DRETT R TE it HR E Operation Manual AVANTAG CSDD AVANTAC i 2 i eege 3 RE 4 tiA AE E 4 EE EE 4 E 4 1 4 5 MAIRIE cinici E 6 21S 7 EC RE RE 7 2 1 2 7 2 1 3 ps 8 KE e EU EE 8 KE n EE 8 931 E EE 8 2 3 2 wine 9 23 3 e 9 234 mn 10 2 3 5 eee 10 2 3 6 oeeeeeeeeeeteertrerrrsreersssreeesssreeesssteeess 10 EK ET E tess eeeeeesneseeeseeeneesneesnenneesneesneenentes 11 2 38 E EEE 11 E E 12 KEE EE 12 3 2 12 3 3 eeeeeeeertreeerrtrerrerrreesrsetersrserer
13. ck refrigerant charge d Ensure that there are no alarms indicated 2 3 OPERATING INSTRUCTIONS When the engine is started previously set functions of the control are reactivated 2 3 1 Display The display is dark when the unit is OFF When the unit is ON the display shows the interior setpoint temperature When selecting individual functions the display shows the corresponding information for a short period of time 2 3 2 Starting And Interior Temperature Control If the engine is not running start the engine Pressing the Automatic Climate Control key l lt will start vehicle interior WA temperature control Press the Plus or Minus Keys to set the required temperature The temperature can be adjusted between 18 C and 28 C The cooling functions will be disabled if ambient air temperatures are below 2 C 2 3 3 Automatic Climate Control After selecting the automatic climate control the unit will be governed in relationship to the vehicle interior temperature and set point temperature Heating If the vehicle interior temperature drops more than 0 5 C below the setpoint temperature the control switches on the heating If the vehicle interior temperature reaches the set point the heating is switched off EI Unit Operation AVANTAC Cooling If system is not operating in ECO Mode see Section2 3 8 and if the vehicle interior temperature rises more than 0 5 C above the setpoint temperature the control
14. e performing maintenance on the HVAC system Read the entire procedure before beginning work Park the coach on a level surface with parking brake applied Turn main electrical disconnect switch to the off position NOTE To avoid damage to the earth s ozone layer use a refrigerant recovery system whenever removing refrigerant When working with refrigerants you must comply with all local government environmental laws 3 1 Warranty Service Thank you for choosing a Carrier Transport Air Conditioning system for your vehicle We want to assure you of our continuing interest in your pleasure and satisfaction with your air conditioning system Remember if you have a question or concern and need help contact your nearest Transport Air Conditioning Dealer EI System Maintenance AVANT ACG Index AVANT AC 3 2 Maintenance Schedule A R Air Conditioning System 20 Refrigerant 19 20 gier C S OPERATION ON Clutch Electro Magnetic 20 Safety 19 Dal Maintenance Compressor 20 Sensor Return Air 21 7 Condenser 20 Serial Tag 21 Pre trip inspection after starting Refer to paragraph 2 2 D Starti 5A artin Check tension and condition of drive belts i S Display 24 Switch Pressure 20 Sar Maintenance E System Components 20 Perform daily inspection Evaporator 21 System Maintenance 27 Check condenser evaporator coils return air filters F U if equipped and fresh air filters for cleanliness Filter Dryer 20 Unit Informati
15. mber tag located on the assembly Knowing these locations and the information on the data tags will aid you in identifying the correct service procedures Refrigerant A refrigerant is a material that is used to move heat from the passenger compartment to the outside air It is a substance that gives up heat by condensing at high temperature and pressures and absorbs heat by evaporating at low temperatures and pressures The heat transfer properties exhibited when refrigerant changes state is the foundation of the refrigerant cycle Compressor The compressor is a belt driven high pressure pump which circulates the refrigerant through the evaporator and condenser The operation of the compressor is controlled by the Electro Magnetic clutch Electro Magnetic Clutch The Electro Magnetic clutch controls the operation of the compressor When engaged the compressor circulates refrigerant and provides cooling Pressure Switch The systems use a high pressure switch wired to control the power circuit of the compressor clutch If the pressure switch opens interrupting the circuit to the clutch the operation of the compressor will stop When conditions return to normal the switch will automatically reset and the compressor will resume operating The switch is non adjustable Condenser The condenser is located on the roof of the vehicle Its primary function is to reject heat which was transferred to the refrigerant by the evaporator fr
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17. nufacturer or other special equipment suppliers We urge you to review all these publications carefully This will help you enjoy safe and trouble free operation of your vehicle When having your unit serviced be sure to specify genuine Carrier Transicold replacement parts for the highest quality and best reliability At Carrier Transport Air Conditioning we are continually working to improve the products that we build for our customers As a result specifications may change without notice 18 J Safety AVANT AC 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 Beware of unannounced starting of the unit The unit may cycle the fans and operating compressor unexpectedly as control requirements dictate Turn system off and disconnect battery power REFRIGERANT The refrigerant contained in the air conditioning system can cause frostbite severe burns or blindness when in direct contact with the skin or eyes For this reason and because of legislation regarding the handling of refrigerants during system service we recommend that whenever your unit requires service of the refrigeration system you contact your nea
18. om the passenger compartment of the vehicle Filter Dryer The filter dryer removes moisture and particulate matter from the Figure 1 1 LD Tag Location refrigerant Expansion Valve Meters the refrigerant flow into the evaporator coil EH 21 Unit Operation Before attempting to operate the system power must be available from the 2 1 DRIVER DISPLAY FUNCTIONS vehicle battery If the engine is not running start the engine Most systems will not 2 1 1 Key Functions On operate unless a signal is received at the controller from the vehicle ignition Ia Plus Key Increases vehicle setpoint by 1 degree per stroke or increases manual blower speed depending on displayed mode E Minus Key Decreases vehicle setpoint by 1 degree per stroke or decreases manual blower speed depending on displayed mode KR ba Recirulating Fresh Air Switches from Recirculating Air to Fresh Air and vice versa 7 Blower Control Switches the evaporator blower motors from automatic speed control based on contoller inputs to manual control where the operator may select blower speed based on the number of times the Plus Key is stroked J Automatic Climate Control Switches on the automatic temperature Figure 2 1 Drivers Display control K Ka Temperature Indication Use two keys Minus Key and the KEYS LEDS Recirulating Fresh Air Key If both keys are pressed simultane
19. on 20 Check refrigerant hoses and compressor shaft seal for leaks l Unit Operation 22 Feel filter drier for excessive temperature drop across drier Introduction 18 V M i ly Maintenance and Inspection valve Expansion 20 Maintenance Schedule 28 W Perform weekly inspection Model Tag 21 Warranty Service 27 Clean evaporator drain pans and hoses E l o What Is Air Conditioning 20 Check wire harnesses for chafing and loose terminals e Operating Instructions 24 Check fan motor bearings p Check compressor mounting bolts for tightness Pre Trip Inspection 24 Check system pressures Check refrigerant in Sight glass Check element in the the liquid line sight glass If equipped Inspect condenser fan blades Open bus heater valves In winter Close bus heater valves In spring Inspect electrical panel and terminals Clean if needed with a high grade cleaner specifically formulated for this purpose Inspect Evaporator drain pan Clean if needed Check pressure switch operation Check system roof mounting and sealing EI EI
20. ously the display 1 Plus Key 6 Display shows the inside temperature for 10 seconds if both keys are pressed a second 2 Minus Key 7 Fresh Air Open Green time the outside temperature will be displayed for 10 seconds 3 Recirculate Fresh Air 8 Manual Blower ON Green 4 Blower Control 9 Cooling Heating Green E Reheat Use two keys Recirulating Fresh Air Key plus Automatic 5 Automatic Climate Control 10 Malfunction Cooling Unit Red Climate Control If both keys are pressed simultaneously the system will run in reheat for 3 minutes 2 1 2 LED Functions On a Display The standard indication is the set point temperarture b Fresh Air 7 This green LED will illuminate when the fresh air damper is open c Blower Control 8 This green LED will illuminate when the evaporator blower motors are controlled manually as described in 2 1 1 Blower Control d Cool Heat 9 This green LED will illuminate when the unit is operating in Auto Mode e Malfunction 10 This red LED will illuminate when a low or high pressure safety switch activates f Reheat 7 8 Both green LED s will flash when the reheat function is active EI 23 J Unit Operation AVANT AC 2 2 PRE TRIP INSPECTION After starting system allow system to stabilize for ten to fifteen minutes and check for the following a Listen for abnormal noises in compressor or fan motors D Check compressor oil level c Che
21. rest Carrier Transport Air Conditioning authorized dealer for service 19 J Unit System Information AVANT AC Unit System Information AVANT AC 1 1 WHAT IS AIR CONDITIONING Evaporator The evaporator is located on the roof of the vehicle Its primary es oe l function is to transfer heat contained in the passenger compartment air into the Air Conditioning is the cooling heating dehumidification and filtration of the air refrigerant which is circulated by the compressor through the evaporator coil within the passenger compartment of a vehicle During this process the air is also dehumidified 1 2 AIR CONDITIONING SYSTEM Return Air Sensor The system is supplied with a thermistor This device is a temperature sensitive component which when activated signals the Electro Magnetic Clutch to engage disengage The return air thermistor is normally located in the return air flow of the evaporator assembly An Air Conditioning System normally includes an evaporator s a condenser s a compressor 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 3 1 4 MODEL AND SERIAL NUMBER TAGS 1 3 SYSTEM COMPONENTS In order to identify the air conditioning components you have you will need to know the model number and serial number All Carrier Transport Air Conditioning systems have a model serial nu
22. tion AVANTACG 2 3 6 Temperature Indication 2 3 2 3 Press the Recirculating Fresh Air Key QJ and the Minus Key at the same Time to display the interior temperature example i 22 The display will return to the o iginal setting after 10 seconds and the Minus Key a second Pressing the Recirculating Fresh Air Key time will display the ambient temperature example o 19 A sensor malfunction will display as i or o 7 Dry Heat Mode f the Dry Heat mode is active the compressor will operate when heating is called for anual Reheat is disabled when Dry Heat is active An absent or defective ambient sensor disables Dry Heat Dry Heat is disabled if the Fresh Air Flap opens for any reason 8 ECO Mode n ECO Mode the controller will allow the vehicle interior temperature to rise but at arate that maintains comfort levels When ambient temperature rises to the ECO Mode start point the controller will control the vehicle interior temperature in accordance with a set difference in temperature between ambient temperature and vehicle interior temperature Manual re setting of the set point temperature with the Plus or Minus keys is not possible Manual Reheat is disabled if ECO mode is operational A defective or missing ambient sensor disables the ECO mode Function EI System Maintenance AVANT AC Be sure to observe warnings listed in the safety summary in the front of this manual befor
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