Manuals / Carrier / Household Appliance / Air Conditioner

Carrier 040-420 specifications C G F

Models: 040-420

1 76

Download 76 pages 29.3 Kb

Page 55

Image 55

PL12-7 Poll-7

LEGEND

c- Contactor

C G F	- Ground		Fault		Module
		Common
Z”	1	Control	Relay
D G T -		Discharge Gas Thermostat (Optional)
DSIO	-	Relay Module			(Low	Voltage)
E X V	-	Electronic		Expansion		Valve
H P S	-	High-Pressure Switch
/$	::	Low Volta		e
		Normally 8losed
;b	I:	Plug
		Reset Button
TB	-	Terminal		Board

Fig. IOD - 24-V Safety Circuit Wiring (225, 250, and 280 Units)

5 5

Page 55

Image 55

Contents

040-420 CONTENTSSAFETY CONSIDERATIONS ACCESSORY UNLOADER INSTALLATIONMAJOR SYSTEM COMPONENTS GENERALTable 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 CPCSTable 4A - Capacity OPERATION DATAControl Steps, 060A\~**Hz Table 4A - Capacity Control Steps, 040-070cantoy&ya “‘“G Hzylf,t Table 4A - Capacity Control Steps, 040-070cantA4l&pi’& A;.$Aiti 08Aqy ,yPage A;;:;H Bitt AlttBitt Wtf2Z$’$-t&Z3 A;;;#Amrox A’tt“A:tkA2’i3BI~ ~,;~~J“B’p Page hwrox B1 tt AlPtlBl’“Att l”l’ Bitty&t3g A2.pBitt ~l*;;# B;$+A&t$$V ‘-J-&W~’ BB’!J~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 Fig. 3 - Keypad and Display Module Keypad and Display Module Also Called HSIOTable 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 cantp-jq Example 1 -Reading Alarm CodesTable 10 - Operationat and Mode Display Codes Example 2 - Reading Current Operating Modes Example 4 - Reading and Changing Example 3 -Using Test FunctionChilled Water Set Point Fig. 4 - Cooling Return Water Reset Example 5 -Using Return Water Temperature Resetf73c= -- / Fig. 5 - Cooling External Temperature Reset Example 6 - Changing Reset Type8- 16 ? _ ‘-+p Table 11 -Service FunctionsFig. 7 - 4-20mA Cooling Temperature Reset Fig. 8 - 4-20mA Example 8 - Setting Time of Day and Day of WeekDemand 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 FunctionTypical Stoppage Faults and Reset Types TROUBLESHOOTINGComplete 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 Control Modules Selector Switch LocationsFig. 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 TroubleshootingTable 18 - Standard and Accessory Unloaders ACCESSORY UNLOADER INSTALLATIONInstallation ‘. \ 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