Bunn JDF-4S Initial fill/setup, Nect fittings, Tray, Water pressure greater than, 100psi, Broken

Page 23

TROUBLESHOOTING (cont.)

 

 

PROBLEM

PROBABLE CAUSE

REMEDY

Water leak filling drip tray or around

1. Initial fill/setup

Some expansion normal. May fill

dispense deck area

 

drip tray during initial ice block

 

 

formation

 

2. Dispense deck

Inspect or replace fittings clamps,

 

 

o-rings, solenoids and quick discon-

 

 

nect fittings.

 

 

NOTE: Dispense deck area slopes

 

 

to drain tube that leads to the drip

 

 

tray.

 

3. Water pressure greater than

 

100psi

Water leaking beneath machine

1. Bath tank overflow.

 

2. Condensation from cabinet cool-

 

ing coil.

Erratic spray during dispense

Dispense nozzle mixer missing or

 

broken

Dispense nozzle dripping water

Dispense solenoid.

Install water pressure regulator and reduce to 50 psi.

A)Check all internal water connec- tions.

B)Check internal plumbing con- nections.

Check for routing of condensation tube to water bath.

Replace mixer.

Replace dispense deck solenoid.

23

44744 032811

 

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Contents Phone 217 529-6601 FAX 217 JDF-2S JDF-4SBUNN-O-MATIC Commercial Product Warranty User Notices ContentsPlumbing Requirements Initial SET-UPCE Requirements Electrical RequirementsSecure the door cover using 5 screws provided Door Cover InstallationInitial Fill Hose JDF-2S Initial Fill Hose JDF-4S Plumbing HookupPlumbing Connections JDF-2S Plumbing Connections JDF-4S Initial FillAmbient Concentrates Optional LoadingInitial Fill Frozen ConcentratesOperating Controls Refrigeration SwitchProduct Dispense Switch Mechanical Switch Machines PrimingProgram Switch JDF-2S shown Product Dispense Switch Membrane Switch MachinesDispense Lockout Switch JDF-2S shown Dispense Lockout SwitchDispenser USE Portion Control Option Mechanical Switch MachinesPush and Hold Membrane Switch Machines Portion Control Option Membrane Switch MachinesTemperature LEDs JDF-2S Late Models Temperature LEDs JDF-4SDaily Rinse Procedure Cleaning & Preventive MaintenanceOpen dispenser door Cleaning Monthly Clean Condenser CoilsAnnually Replace Pump Tubing Brix % Adjustment & Optional SettingsWater Flow Testing and Adjustment Pump Speed AdjustmentTemperature Compensated Refractometer Method Adjustment & Optional SettingsAdjustment & Optional Settings Dispenser Lockout LED Color Illuminates Circuit Board LED Indicators JDF-2S Early ModelsFunction List LED #JDF-4S Remedy TroubleshootingProblem Probable CauseSpace around machine TroubleshootingCompressor ON/OFF switch Dirty condenser filter or fins RefrigerationProblem Probable Cause Remedy Water only Concentrate onlyWater pressure greater than Initial fill/setupNect fittings TrayProblem Probable Cause Coolant Schematic Diagram Schematic Wiring Diagram JDF-2S Schematic Wiring Diagram JDF-2SSchematic Wiring Diagram JDF-4S Schematic Wiring Diagram JDF-4SShown.See Initial Fill Quick Setup Guide JDF-2S and JDF-4S JDF-2S shown
Related manuals
Manual 28 pages 35.87 Kb Manual 31 pages 40.19 Kb Manual 57 pages 43.05 Kb

JDF-4S specifications

The Bunn JDF-4S is a high-performance commercial coffee brewer designed to meet the needs of busy coffee shops, restaurants, and other establishments requiring a reliable and efficient coffee brewing solution. This versatile machine boasts an array of advanced features and technologies, making it a prominent choice among professionals in the coffee industry.

One of the most notable features of the Bunn JDF-4S is its ability to brew up to 4 gallons of coffee per hour, ensuring that establishments can keep pace with high-demand environments. This capacity makes it an ideal choice for venues that experience peak periods of coffee consumption, minimizing wait times for customers. The machine is designed with a multiple-brew option, allowing users to select various brew methods, which can cater to diverse customer preferences.

The JDF-4S incorporates Bunn’s patented brewing technology, which utilizes a precision-controlled process to ensure optimal flavor extraction. The brewed coffee is delivered at an ideal temperature, typically between 195°F and 205°F, promoting maximum taste and aroma. The machine also features a programmable digital controller that enables users to set specific brew times and adjust water temperature settings to achieve consistent results.

Another significant characteristic of the Bunn JDF-4S is its durability and ease of use. Constructed with high-quality materials, the machine is built to withstand the rigors of daily operation. The user-friendly interface features a simple touchpad design for easy navigation and programming. Additionally, the machine includes a built-in diagnostics program, helping users quickly identify and troubleshoot potential issues, thereby minimizing downtime.

The JDF-4S also offers flexible brewing options, including iced coffee brewing, enhancing its versatility. It is compatible with Bunn’s extensive range of coffee and tea dispensers, allowing businesses to expand their beverage offerings effortlessly. Furthermore, the unit features an easy-access water reservoir for quick refilling and reduced wait times during busy service periods.

In terms of maintenance, the Bunn JDF-4S is designed with user convenience in mind. The machine includes a rinse and clean cycle to ensure optimal hygiene and coffee quality. Integrated clean alerts guide users through the cleaning process, promoting regular upkeep and ensuring the longevity of the brewer.

In summary, the Bunn JDF-4S represents a cutting-edge solution for coffee brewing that prioritizes performance, versatility, and ease of use. With its advanced brewing technology, user-friendly features, and robust construction, it offers an exceptional choice for businesses seeking to serve high-quality coffee efficiently.
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