Cornelius R-134A manual Troubleshooting

Page 22

TROUBLESHOOTING

IMPORTANT: Only qualified personnel should service internal components or electrical wiring.

WARNING: If repairs are to be made to carbonated water system, disconnect electrical power to Cooling Unit, shut off plain water and CO2 supplies, and relieve the carbonated water system pressure before proceeding. If repairs are to be made to syrup system,

remove quick disconnects from applicable syrup tank, then relieve the system pressure before proceeding. If repairs are to be made to CO2 system, stop dispensing, shut off CO2 supply, then relieve the system pressure before proceeding.

TROUBLESHOOTING SENTRY III-A POST-MIX COOLING UNIT

Trouble

 

Probable Cause

 

Remedy

DISPENSED PRODUCT

A.

Carbonator CO2 regulator out

A.

Adjust carbonator CO2 regulator

CARBONATION TOO LOW.

 

of adjustment for existing

 

as instructed.

 

 

water conditions or

 

 

 

 

temperature.

 

 

 

B.

Water, oil, or dirt in CO2 supply

B.

Remove contaminated CO2

 

 

 

 

supply. Clean CO2 system (lines,

 

 

 

 

regulators,etc.) using a mild

 

 

 

 

detergent. Replenish with a clean

 

 

 

 

CO2 supply.

ONLY SYRUP DISPENSED.

A.

Plain water inlet supply line

A.

Open plain water inlet supply line

 

 

shutoff valve closed.

 

shutoff valve.

 

B. Carbonator power switch in

B.

Place carbonator power switch in

 

 

‘OFF’position.

 

‘ON’position.

 

C.

Carbonator inoperable.

C.

Call Service Person.

 

D.

Water filter clogged.

D.

Replace water filter.

 

 

 

 

 

WARM PRODUCT BEING

A.

Carbonated water circulating

A.

Place circulating pump power

DISPENSED

 

pump power switch in “OFF”

 

switch in “ON”position.

 

 

position.

 

 

 

B.

Inoperable carbonated water

B.

Call Service Person.

 

 

circulating pump or motor.

 

 

TROUBLESHOOTING CARBONATOR

WATER PUMP WILL NOT

A. Carbonator power switch in

OPERATE

“OFF”position.

A.Place switch in “ON”position.

B. Inoperative water pump motor. B. Call Service Person.

WATER PUMP MOTOR

A.

Water pump water inlet

A.

Call Service Person.

OPERATES BUT WATER

 

strainer screen dirty.

 

 

PUMP DOES NOT PUMP

 

 

 

 

WATER.

 

 

 

 

 

B.

Kinked water supply line.

B. Straighten water supply line.

 

C.

Water pump worn out.

C.

Call Service Person

 

 

 

 

 

WATER PUMP CAPACITY

A.

Water pump water inlet

A.

Call Service Person

TOO LOW.

 

strainer screen dirty.

 

 

 

B.

Water supply capacity too low.

B.

Inlet water supply must be at a

minimum of 150--gallons per hour with a maximum water pressure of 70--psi.

19

312021002

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Contents Sentry III-A POST-MIX Cooling Unit This Document Contains Important InformationTable of Contents Table of Contents cont’d Safety Information Recognize Safety InformationThis page Left Blank Intentionally Claims Instructions Warranty Reference InformationGeneral Information Design DataDROP--IN Refrigeration Assembly Data DescriptionTheory of Operation Sentry III-A Cooling UnitSystem Flow Diagram Carbonator Water Pump Motor Safety Thermostat Parts Identification312021002 OWNER’S Recommended Maintenance Maintenance ScheduleThis page Left Blank Intentionally Operating Controls Operators InstructionsDaily PRE-OPERATION Check This page Left Blank Intentionally Content Water Where a Local Water Problem Exist General MaintenanceAdjustments Sanitizing Syrup SystemsCleaning Condenser Coil Replenishing CO2 SupplyReplenishing Syrup Supply Periodic Cleaning of Cooling UnitCleaning and Sanitizing Wash Syrup SystemsFlush Syrup Systems Sanitize Syrup SystemsPurge Water OUT of Syrup Systems Restore Operation Water Flush Syrup Systems312021002 Troubleshooting Compressor Operates TOO LOW.CONT’DCompressor does not Continuously but doesWarranty Page One Cornelius Place Anoka, Minnesota 612 800
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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.
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