TABLE OF CONTENTS (cont’d)

Page

ONLY SYRUP DISPENSED

44

TROUBLESHOOTING REFRIGERATION SYSTEM

45

COMPRESSOR DOES NOT OPERATE

45

COMPRESSOR WILL NOT STOP AFTER SUFFICIENT ICE BANK IS

 

PRODUCED. (NOTE: ICE BANK SHOULD JUST COVER CONTROL

 

BULB)

45

COMPRESSOR OPERATES CONTINUOUSLY BUT DOES NOT FORM

 

SUFFICIENT ICE BANK

46

AGITATOR MOTOR NOT OPERATING

46

WARRANTY

47

LIST OF FIGURES

 

FIGURE 1. VENTURE SIX-FLAVOR POST-MIX DISPENSER

3

FIGURE 2. FLOW DIAGRAM (FIVE-FLAVOR UNIT WITH BUILT-IN COLD

 

CARBONATOR)

6

FIGURE 3. FLOW DIAGRAM (SIX-FLAVOR UNIT WITH BUILT-IN COLD

 

CARBONATOR)

7

FIGURE 4. SYRUP INLET SUPPLY LINE CONNECTIONS (SIX-FLAVOR

 

UNIT SHOWN)

11

FIGURE 5. DISPENSER COMPONENTS

22

FIGURE 6. SF-1 DISPENSING VALVE

23

FIGURE 7. UF-1 DISPENSING VALVE

24

FIGURE 8. WATER TANK

28

FIGURE 9. WATER STRAINER SCREEN AND DOUBLE-LIQUID CHECK

 

VALVE

33

FIGURE 10. LIQUID CHECK VALVE ASSEMBLY

34

FIGURE 11. CO2 GAS CHECK VALVE ASSEMBLY

35

FIGURE 12. WIRING SCHEMATIC FOR ELECTRONIC ICE BANK CONTROL

 

(OPTIONAL)

36

FIGURE 13. WIRING DIAGRAM (50 AND 60 HZ UNIT WITH 1/3 H.P.

 

REFRIGERATION ASSEMBLY)

37

FIGURE 14. WIRING DIAGRAM (60 HZ UNIT WITH 1/4 H.P. REFRIGERATION

 

ASSEMBLY AND BUILT-IN COLD CARBONATOR)

38

FIGURE 15. WIRING DIAGRAM (50 HZ UNIT WITH 1/4 H.P. REFRIGERATION

 

ASSEMBLY AND BUILT-IN COLD CARBONATOR)

39

FIGURE 16. WIRING DIAGRAM (SF-1 DISPENSING VALVE)

40

FIGURE 17. WIRING DIAGRAM (UF-1 DISPENSING VALVE)

40

LIST OF TABLES

 

TABLE 1. DESIGN DATA

4

TABLE 2. LOOSE-SHIPPED PARTS

9

iii

312027000

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Cornelius R-134A service manual Troubleshooting Refrigeration System, Compressor Operates Continuously but does not Form

R-134A specifications

Cornelius R-134A is a refrigerant commonly used in various cooling and air conditioning applications. It belongs to the hydrofluorocarbon (HFC) family and has become a favored alternative to many ozone-depleting substances. Unlike its predecessors, R-12, which has been phased out due to its detrimental effects on the ozone layer, R-134A offers a more environmentally friendly solution, albeit still having global warming potential.

One of the main features of R-134A is its favorable thermodynamic properties. It exhibits a low boiling point of approximately -26.3°C (-15.3°F), making it suitable for various refrigeration applications, including automotive air conditioning, commercial cooling systems, and domestic refrigerators. Its efficiency is regarded as superior, allowing for quick heat absorption and dissipation. This efficiency translates into energy savings, ultimately benefiting both consumers and manufacturers.

R-134A also boasts a relatively high vaporization heat, demonstrating its effectiveness in heat transfer processes. The low toxicity and non-flammability of R-134A further enhance its appeal, as it poses minimal risk during handling and application. This characteristic makes R-134A safer for technicians and users compared to older refrigerants, which presented higher health hazards.

Within modern technologies, R-134A plays a crucial role in both chiller systems and heat pump applications. It is compatible with various lubricants, allowing manufacturers to utilize R-134A in existing systems with minimal modifications. However, it is essential to use the correct type of oil, as mixing different types can lead to system inefficiencies and potential failure.

Despite its advantages, R-134A has a global warming potential of around 1,430 times greater than carbon dioxide, prompting the refrigerant industry to look for alternatives. Newer refrigerants, such as R-1234yf, offer lower environmental impact, driving a shift towards more sustainable options.

In conclusion, Cornelius R-134A remains a widely used refrigerant known for its efficiency, safety, and effectiveness in heat transfer. While it has played a significant role in the refrigeration and air conditioning industries, the ongoing search for eco-friendly alternatives highlights the need for continued innovation and adherence to environmental standards.