Carrier HS070-160- Manuals

(Modes) The operating mode codes are dis- played to indicate the operating status of the unit at a given time. (See Table 7). The modes are explained in the Troubleshooting sec- tion on page 12. (Position) The position subfunction displays the current position of the electronic expansion in steps: F...

Programming Functions SERVICE FUNCTION The service function allows the operator to verify factory configurations and reador change field configurations. The service subfunctionsare listed below. (See Table 6 for details.) The operator must use this subfunction to a n d log on before performingto log...

T R O U B L E S H O O T I N G If necessary, review the Flotronic Plus Control System, Control Sequence, and Controls Operation sectionsfound in this book. Tables 5 and 6 show how to use thekeyboard/display module to access functions and sub-functions. (These procedures are also explained in the Inst...

L E A V I N G W A T E R S U C T I O N \ INLET COOLER TUBE CONNECTION THERMISTOR.. ENTERING COOLER W A T E R S E N S O R Fig. 4 Cooler Sensor Locations Thermistors mis-located or out of calibration.Code 68 and 69, Low Suction Superheat if the follow- ing logic is satisfied, then all the compressors o...

KEYBOARD I DISPLAY ENTRY RESPONSE q u 3 COMP OFF q CA1 ON OFF q C A 2 O F F END TEST COMMENTS Factory field test of compressors subfunction of test function Circuit A, compressor test Pressing starts the test; when the compressor should be running thedisplay shows CA1 on If the test is allowed to ti...

Electronic Expansion CHECKOUT t o diagnose and correct problems, For an of EXV operation, see 2 Step 1 Check EXV Driver Outputs output signals at appropriate terminals on module (Fig. 8) as Connect positive test to terminal 1 on EXV driver. Set meter for approximately 20 Enter outputs sub- function ...

- M U F F L E R S MUFFLERS C O M P R E S S O R S C O M P R E S S O R S Fig. 9 Thermistor Locations Step 4 Check Thermistors That Control EXV Check thermistors that control processor output voltage pulses to Circuit A thermistors are T5 and T7. Circuit thermistors are and Refer to Fig. 9 for location...

Thermistors All thermistors are identical in their temperature vs resistance performance. Resistance at various temperatures are listed in Table 8. LOCATION -- General location of thermistor sensorsare shown in Fig. 9. Cooler Leaving Water Sensor, is located in the leav- ing water nozzle. The probe ...

Modules Turn controller power off before servicing controls. This is to ensure safety and prevent damageto the controller. PROCESSOR MODULE LOW-VOLTAGE R E L A Y M O D U L E E X V D R I V E R MODULE The and modules perform continuous diagnostic evaluations of the condi-tion of the hardware. Proper o...

On the sensor bus terminal strips, terminal of the module is connected to terminal 1 of each of the other modules; terminals 2 and 3 are connected in thesame manner. (See Fig. 13.) If a terminal 2 wire is con-nected to terminal 1, the system will not work. in the units, the processor module, voltage...

EXV Driver Module (Fig. 16.) Input on strip am-c When 24 are applied 2 terminals in a channel it is read as an ON signal. is read as an OFF signal. Two stepper motor driver outputs used to drive the electronic expansion valves, Terminals I and 7supply voltage to the valves. Terminals 2 through 5 and...

T R O U B L E S H O O T I N G SYMPTOMS CAUSE REMEDY SYMPTOMS C o m p r e s s o r d o e s not run CAUSE REMEDY Unit operateslong orcontinuously Power l i n e o p e n Reset circuit breaker. Control fuseo p e n Safety thermostat tripped (DGT) Check control circuitfor ground or short.Replace fuse. Move ...

(Modes) The operating mode codes are dis- played to indicate the operating status of the unit at a given time. (See Table 7). The modes are explained in the Troubleshooting sec- tion on page 12. (Position) The position subfunction displays the current position of the electronic expansion in steps: F...

Programming Functions SERVICE FUNCTION The service function allows the operator to verify factory configurations and reador change field configurations. The service subfunctionsare listed below. (See Table 6 for details.) The operator must use this subfunction to a n d log on before performingto log...

T R O U B L E S H O O T I N G If necessary, review the Flotronic Plus Control System, Control Sequence, and Controls Operation sectionsfound in this book. Tables 5 and 6 show how to use thekeyboard/display module to access functions and sub-functions. (These procedures are also explained in the Inst...

L E A V I N G W A T E R S U C T I O N \ INLET COOLER TUBE CONNECTION THERMISTOR.. ENTERING COOLER W A T E R S E N S O R Fig. 4 Cooler Sensor Locations Thermistors mis-located or out of calibration.Code 68 and 69, Low Suction Superheat if the follow- ing logic is satisfied, then all the compressors o...

KEYBOARD I DISPLAY ENTRY RESPONSE q u 3 COMP OFF q CA1 ON OFF q C A 2 O F F END TEST COMMENTS Factory field test of compressors subfunction of test function Circuit A, compressor test Pressing starts the test; when the compressor should be running thedisplay shows CA1 on If the test is allowed to ti...

Electronic Expansion CHECKOUT t o diagnose and correct problems, For an of EXV operation, see 2 Step 1 Check EXV Driver Outputs output signals at appropriate terminals on module (Fig. 8) as Connect positive test to terminal 1 on EXV driver. Set meter for approximately 20 Enter outputs sub- function ...

- M U F F L E R S MUFFLERS C O M P R E S S O R S C O M P R E S S O R S Fig. 9 Thermistor Locations Step 4 Check Thermistors That Control EXV Check thermistors that control processor output voltage pulses to Circuit A thermistors are T5 and T7. Circuit thermistors are and Refer to Fig. 9 for location...

Thermistors All thermistors are identical in their temperature vs resistance performance. Resistance at various temperatures are listed in Table 8. LOCATION -- General location of thermistor sensorsare shown in Fig. 9. Cooler Leaving Water Sensor, is located in the leav- ing water nozzle. The probe ...

Modules Turn controller power off before servicing controls. This is to ensure safety and prevent damageto the controller. PROCESSOR MODULE LOW-VOLTAGE R E L A Y M O D U L E E X V D R I V E R MODULE The and modules perform continuous diagnostic evaluations of the condi-tion of the hardware. Proper o...

On the sensor bus terminal strips, terminal of the module is connected to terminal 1 of each of the other modules; terminals 2 and 3 are connected in thesame manner. (See Fig. 13.) If a terminal 2 wire is con-nected to terminal 1, the system will not work. in the units, the processor module, voltage...

EXV Driver Module (Fig. 16.) Input on strip am-c When 24 are applied 2 terminals in a channel it is read as an ON signal. is read as an OFF signal. Two stepper motor driver outputs used to drive the electronic expansion valves, Terminals I and 7supply voltage to the valves. Terminals 2 through 5 and...

T R O U B L E S H O O T I N G SYMPTOMS CAUSE REMEDY SYMPTOMS C o m p r e s s o r d o e s not run CAUSE REMEDY Unit operateslong orcontinuously Power l i n e o p e n Reset circuit breaker. Control fuseo p e n Safety thermostat tripped (DGT) Check control circuitfor ground or short.Replace fuse. Move ...