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Carrier 040-420 Thermistor Locations, Circuits A and B, Lead Compressor Only, Thermistors

Models: 040-420

1 76

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Page 59

Image 59

:LEAVING

W A T E R / B R I N E THERMISTOR (Tl)

A I R	COOLER	ENTERING
	FLUID
		WATER/BRINE	SUCTION
VENT
	BAFFLE
		CONNECTION	CONNECTION

		I	INLET
DRAIN	LEAVING	COOLER	CONNECTION
	LEAVING	COOLER
	WATER/BRINE	TUBE
	CONNECTION	(TYPICAL)
		(TYPICAL)
			ENTERING
			WATER/BRINE
			THERMISTOR

Fig. 14 - Thermistor Locations

(Circuits A and B, Lead Compressor Only)

COUPLING

JACKETED

SENSOR

THERMISTOR

ACCESSORY

CABLE

TUBE

WELL

poi-i,

(~~~%~~

NOTE: BEND

SLIGHTLY-

FERRULES

3/16” f(4 8) DIA

114”

(6.4)

FOR

INSERTION

(76)

(4 6)

INTO

WELL

INSIDE

COUPLING

WATER-SIDE TEMPERATURE SENSOR (Tl, T2, - ALL UNITS),

REFRIGERANT TEMPERATURE SENSOR (T7, T8 - 040-210 AND

(T7, T8 - 225, 250, 280)

ASSOCIATED MODULAR UNITS)

Fig. 15 - Thermistors

Page 59

Image 59

Carrier 040-420 Thermistor Locations, Circuits A and B, Lead Compressor Only, Thermistors, Suction, T7, T8 - 225, 250

Contents

040-420 CONTENTSSAFETY CONSIDERATIONS ACCESSORY UNLOADER INSTALLATIONTable 1 - Unit Sizes and Modular Combinations GENERALMAJOR SYSTEM COMPONENTS DsroiLv Table 3 - Thermistor and Transducer Locations Table 2 - LOCAL/ENABLE-STOP-CCNSwitch Positions and Operation Compressor Protection Control Module CPCSControl Steps, OPERATION DATATable 4A - Capacity 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“B’p ~,;~~J“A:tkA2’i3BI~ Page hwrox B1 tt AlPtlBl’“Att l”l’ BittBitt A2.py&t3g A&t$$V B;$+~l*;;# ~i~~~~ BB’!J‘-J-&W~’ 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 Table 6 - Keypad and Display Module Usage Keypad and Display Module Also Called HSIOFig. 3 - Keypad and Display Module 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 cantTable 10 - Operationat and Mode Display Codes Example 1 -Reading Alarm Codesp-jq Example 2 - Reading Current Operating Modes Chilled Water Set Point Example 3 -Using Test FunctionExample 4 - Reading and Changing f73c= -- / Example 5 -Using Return Water Temperature ResetFig. 4 - Cooling Return Water Reset 8- 16 ? Example 6 - Changing Reset TypeFig. 5 - Cooling External Temperature Reset _ ‘-+p Table 11 -Service FunctionsFig. 7 - 4-20mA Cooling Temperature Reset Demand Limiting Example 8 - Setting Time of Day and Day of WeekFig. 8 - 4-20mA 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 FunctionComplete Unit Stoppage - Complete unit stop TROUBLESHOOTINGTypical Stoppage Faults and Reset Types 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 Fig. 18 - Module Address Selector Switch LocationsControl Modules fL.w--6%2 Fig. 19 - Sensor Bus Wiring Communications1 $i 1 !;i %o-693Fig. 22 - 4 In/4 Out Module SIO COMMTable TroubleshootingInstallation ACCESSORY UNLOADER INSTALLATIONTable 18 - Standard and Accessory Unloaders ‘. \ 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

SUCTION

Fig. 14 - Thermistor Locations

(Circuits A and B, Lead Compressor Only)

WATER-SIDE TEMPERATURE SENSOR (Tl, T2, - ALL UNITS),

(T7, T8 - 225, 250, 280)

ASSOCIATED MODULAR UNITS)

Fig. 15 - Thermistors