Manuals / Carrier / Household Appliance / Air Conditioner

Carrier 040-420 specifications

Models: 040-420

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THERMISTOR*	REFRIGERANT	DISCHARGE
ENTERING	TEMPERATURE	PRESSURE
CYLINDERS		TRANSDUCER*

EQUALIZER	OIL PRESSURE	SUCTION PRESSURE	SIGHT	GLASS	*Lead compressor only
LINE	TRANSDUCER*	TRANSDUCER*	(EACH	COMPRESSOR)

Fig. 17 - Lead Compressor Transducer and Thermistor Locations

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Contents

040-420 CONTENTSSAFETY CONSIDERATIONS ACCESSORY UNLOADER INSTALLATIONGENERAL MAJOR SYSTEM COMPONENTSTable 1 - Unit Sizes and Modular Combinations DsroiLv Table 3 - Thermistor and Transducer Locations Table 2 - LOCAL/ENABLE-STOP-CCNSwitch Positions and Operation Compressor Protection Control Module CPCSOPERATION DATA Table 4A - CapacityControl Steps, 060A\~**Hz Table 4A - Capacity Control Steps, 040-070cantoy&ya “‘“G Hzylf,t Table 4A - Capacity Control Steps, 040-070cantA4l&pi’& A;.$Aiti 08Aqy ,yPage A;;:;H Bitt AlttBitt Wtf2Z$’$-t&Z3 A;;;#Amrox A’tt~,;~~J “A:tkA2’i3BI~“B’p Page hwrox B1 tt AlPtlBl’“Att l”l’ BittA2.p y&t3gBitt B;$+ ~l*;;#A&t$$V BB’!J ‘-J-&W~’~i~~~~ CKEL 86p Hz Page hwrox Table 4D - Capacity Control Steps, 225, 250,2804G SEQUENCE UNITLOAC JG SEQUENCEf& Hz Table 5 - Condenser Fan Sequence Table 5 - Condenser Fan Sequence cant Keypad and Display Module Also Called HSIO Fig. 3 - Keypad and Display ModuleTable 6 - Keypad and Display Module Usage Table 7 - Functions and Subfunctions Table 8 - Accessing Functions and SubfunctionsTable 9 - Keypad Directory STATUS Table 9 - Keypad Directory cant STATUS cant DISPLAY TESTTable 9 - Keypad Directory cant STATUS cant SUBFUNCTION 10 OUTPUTSSCHEDULE Table 9 - Keypad Directory cant TEST cantTable 9 - Keypad Directory SCHEDULE cant SERVICEct l Table 9 - Keypad Directory cant SERVICE cordCltt at Clt clSET POINT Table 9 - Keypad Directory cantExample 1 -Reading Alarm Codes p-jqTable 10 - Operationat and Mode Display Codes Example 2 - Reading Current Operating Modes Example 3 -Using Test Function Example 4 - Reading and ChangingChilled Water Set Point Example 5 -Using Return Water Temperature Reset Fig. 4 - Cooling Return Water Resetf73c= -- / Example 6 - Changing Reset Type Fig. 5 - Cooling External Temperature Reset8- 16 ? _ ‘-+p Table 11 -Service FunctionsFig. 7 - 4-20mA Cooling Temperature Reset Example 8 - Setting Time of Day and Day of Week Fig. 8 - 4-20mADemand Limiting Table 13 - Adjustable Field Configurations Table 12 - Factory Configuration KeystrokesExample 9 continued next page Example 9 - Using the Schedule FunctionFig. 9 - Sample Time Schedule Example 9 - Using the Schedule Function cant‘EYo Example 10 - Holiday Schedule FunctionTROUBLESHOOTING Typical Stoppage Faults and Reset TypesComplete Unit Stoppage - Complete unit stop Table 14 - Alarm Codes Possible causes of failure Code 30 Reset input failure 4 to 20 mA ’ Sl Fig. IOA - 24-VSafety Circuit Wiringi2G7 CPCSIlEO2 TNANZ24VAC 32MPTransformer LEGENDLow Voltage PlugC G F EXV Driver Module, DSIO EXV 1 Electronic Expansion ValveFig. 11 - Electronil c Expansion Valve EXV Fig. 12 - EXV Cable Connections toCircuit A -Thermistor T7, Suction Pressure Trans T - Thermistor Number LEGEND D P T - Discharge Pressure TransducerOil Pressure Transducer ppTT - Suction Pressure TransducerWATER-SIDETEMPERATURE SENSOR Tl, T2, -ALL UNITS Fig. 14 - Thermistor LocationsCircuits A and B, Lead Compressor Only Fig. 15 - ThermistorsFig. 16 - Pressure Transducer TEMP:;fTURE Page Page Selector Switch Locations Control ModulesFig. 18 - Module Address fL.w--6%2 Fig. 19 - Sensor Bus Wiring Communications1 $i 1 !;i %o-693Fig. 22 - 4 In/4 Out Module SIO COMMTable TroubleshootingACCESSORY UNLOADER INSTALLATION Table 18 - Standard and Accessory UnloadersInstallation ‘. \ Fig. 23 - Accessory Unloader Control Wiring 69080-110SO/SO Hz and 130 60 Hz 13 6 y3.Wire in the solenoid valves k367 WIRINGFig. 26B - Demand Limit - Two External Switch 4368Fig. 28 - Demand Limit - 4-20mA Signal Fig. 27 - Demand Limit - 4-20mA SignalExternally Powered Fig. 30 - Remote Reset from 4-20mA Signal~,. $$ InstallationFig. 35 -Remote Alarm u2 TB-5scribed in m H and r;lFl sections on page Page Copyright 1994 Carrier Corporation