TTK 2C Retrofit
- 1. THIS GUY NEEDS ATHIS GUY NEEDS A RETROFIT!RETROFIT!
- 2. --- RETROFIT ------ RETROFIT --- (APPROXIMATELY 1 HOUR)(APPROXIMATELY 1 HOUR) --- RETROFIT ------ RETROFIT --- (APPROXIMATELY 1 HOUR)(APPROXIMATELY 1 HOUR) WHAT IS AWHAT IS A HFC-134a RETROFIT?HFC-134a RETROFIT?
- 3. HOW DOESHOW DOES HFC-134a COMPARE TOHFC-134a COMPARE TO R-12?R-12? HOW DOESHOW DOES HFC-134a COMPARE TOHFC-134a COMPARE TO R-12?R-12? R-12 = CHLOROFLOROCARBONR-12 = CHLOROFLOROCARBON R134-a = HYDROFLOROCARBONR134-a = HYDROFLOROCARBON (NO CHLORINE)(NO CHLORINE) R-12 BOILS AT -22R-12 BOILS AT -22oo FF R-134a BOILS AT -15R-134a BOILS AT -15oo FF
- 4. WHAT MUST BEWHAT MUST BE CHANGED DURINGCHANGED DURING RETROFIT?RETROFIT? SERVICE FITTINGSSERVICE FITTINGS
- 5. WHAT MUST BEWHAT MUST BE CHANGED DURINGCHANGED DURING RETROFIT?RETROFIT? HIGH PRESSURE SWITCHHIGH PRESSURE SWITCH
- 6. WHAT MUST BEWHAT MUST BE CHANGED DURINGCHANGED DURING RETROFIT?RETROFIT? OIL ADDED - WHAT ABOUT OLD OIL?OIL ADDED - WHAT ABOUT OLD OIL? (CHECK TYPE AND VISCOSITY -CHART)(CHECK TYPE AND VISCOSITY -CHART)
- 7. WHAT MUST BEWHAT MUST BE CHANGED DURINGCHANGED DURING RETROFIT?RETROFIT? CHANGE DESICCANT IF ITSCHANGE DESICCANT IF ITS OTHER THANOTHER THAN XH-7 OR XH-9XH-7 OR XH-9
- 8. WHAT MUST BEWHAT MUST BE CHANGED DURINGCHANGED DURING RETROFIT?RETROFIT? HOW MUCH R-134A SHOULD BE USED?HOW MUCH R-134A SHOULD BE USED? APPROXIMATELY 80% OF ORIGINAL CHARGEAPPROXIMATELY 80% OF ORIGINAL CHARGE
- 9. WHAT MUST BEWHAT MUST BE CHANGED DURINGCHANGED DURING RETROFIT?RETROFIT? NEW LABELSNEW LABELS
- 10. WHAT MUST BEWHAT MUST BE CHANGED DURINGCHANGED DURING RETROFIT?RETROFIT? WHAT MUST BEWHAT MUST BE CHANGED DURINGCHANGED DURING RETROFIT?RETROFIT? WHAT ABOUT HOSES?WHAT ABOUT HOSES?
- 11. WHAT MUST BEWHAT MUST BE CHANGED DURINGCHANGED DURING RETROFIT?RETROFIT? EVAPORATOR?EVAPORATOR?
- 12. WHAT MUST BEWHAT MUST BE CHANGED DURINGCHANGED DURING RETROFIT?RETROFIT? CONDENSER?CONDENSER?
- 13. WHAT MUST BEWHAT MUST BE CHANGED DURINGCHANGED DURING RETROFIT?RETROFIT? COMPRESSOR?COMPRESSOR?
- 14. WHAT MUST BEWHAT MUST BE CHANGED DURINGCHANGED DURING RETROFIT?RETROFIT? OTHER?OTHER?
- 15. DO YOU REMEMBERDO YOU REMEMBER EVERYTHING FROM THEEVERYTHING FROM THE LAST READINGLAST READING ASSIGNMENT.ASSIGNMENT. DO YOU REMEMBERDO YOU REMEMBER EVERYTHING FROM THEEVERYTHING FROM THE LAST READINGLAST READING ASSIGNMENT.ASSIGNMENT.
- 16. ??
- 17. How much R-134a should beHow much R-134a should be installed in a retrofittedinstalled in a retrofitted system?system? a.a. 100% of the OEM specification.100% of the OEM specification. b.b. 108% of the OEM specification.108% of the OEM specification. c.c. 80% of the OEM specification.80% of the OEM specification. d.d. 8% of the OEM specification.8% of the OEM specification. e.e. None of the above are correct.None of the above are correct.
- 18. ??
- 19. Newer style barrier hoseNewer style barrier hose is recommended because:is recommended because: a.a. R-134a operates at higher pressures.R-134a operates at higher pressures. b.b. refrigerant must not be allowed to escape torefrigerant must not be allowed to escape to the atmosphere.the atmosphere. c.c. R-134a has smaller molecules than R-12.R-134a has smaller molecules than R-12. d.d. both a & c are correctboth a & c are correct e.e. All of the above are correctAll of the above are correct