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Bunn JDF-4S service manual Priming, Operating Controls, Refrigeration Switch

Models: JDF-4S

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PRIMING

PRIMING

1.Open the dispenser door

2.Load concentrate per instructions in section titled Loading.

3.Close the dispenser door.

4.Place a large container under the appropriate dispense nozzle.

Press and hold the “Product Dispense Switch” Fig 5, until concentrate dispenses from the dispense nozzle. Note: This may take several seconds, depending on the installation and set pump speed.

OPERATING CONTROLS

Refrigeration Switch

The refrigeration switch is located on the Electrical Panel of the dispenser near the Circuit Board. This switch controls power to the water bath pump and relay contacts for the compressor and condenser fan motor.

FIG 7 Refrigeration Switch - JDF-2S

FIG 8 Refrigeration Switch - JDF-4S

Product Dispense Switch (Mechanical Switch Machines)

Pressing and holding switch will initiate product flow from the respective nozzle; releasing the switch will stop the flow.

		P3583	P3844
	FIG 9 Product Dispense Switches - JDF-2S		FIG 10 Product Dispense Switches - JDF-4S

8	44744 032811

Image 8

Bunn JDF-4S Priming, Operating Controls, Refrigeration Switch, Product Dispense Switch Mechanical Switch Machines

Contents

BUNN-O-MATIC CORPORATION INSTALLATION & OPERATING GUIDEJDF-2S JDF-4S Silver SeriesBUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY USER NOTICES CONTENTSAVERTISSEMENT CHARGEINITIAL SET-UP CE REQUIREMENTSELECTRICAL REQUIREMENTS PLUMBING REQUIREMENTSDOOR COVER INSTALLATION P3577P3578 P3840PLUMBING HOOKUP INITIAL FILLLOADING INITIAL FILL ContinuedFrozen Concentrates Ambient Concentrates OptionalRefrigeration Switch Product Dispense Switch Mechanical Switch MachinesPRIMING OPERATING CONTROLSProduct Dispense Switch Membrane Switch Machines Dispense Lockout Switch JDF-2S shownProgram Switch JDF-2S shown OPERATING CONTROLS ContinuedPortion Control Option Mechanical Switch Machines Push and Hold Membrane Switch MachinesPortion Control Option Membrane Switch Machines OPERATING CONTROLS Continued DISPENSER USEEarly Models FIG 15 Temperature LEDs JDF-2SOPERATING CONTROLS Continued CLEANING & PREVENTIVE MAINTENANCE Daily Rinse ProcedureDaily Parts Washing Sanitize Process for Semi-Automatic and ManualCLEANING cont Monthly Clean Condenser Coils Annually Replace Pump TubingADJUSTMENT & OPTIONAL SETTINGS Water Flow Testing and AdjustmentPump Speed Adjustment Brix %Temperature Compensated Refractometer Method Total Dispense Ratio Set Up ProcedureADJUSTMENT & OPTIONAL SETTINGS cont ADJUSTMENT & OPTIONAL SETTINGS cont Dispenser Lockout FUNCTION LIST Circuit Board LED Indicators - JDF-2S Early Models LED #LED Color IlluminatesCircuit Board LED Indicators - JDF-4S and Late Model JDF-2S FUNCTION LIST ContinuedLED # LED ColorTROUBLESHOOTING PROBLEMPROBABLE CAUSE REMEDYTROUBLESHOOTING cont PROBLEM Refrigeration 1. Compressor ON/OFF switch 2. Dirty condenser filter or finsPROBABLE CAUSE REMEDYTROUBLESHOOTING cont PROBLEMPROBABLE CAUSE REMEDYconcentrate only water onlyTROUBLESHOOTING cont PROBLEMTROUBLESHOOTING cont PROBLEM1. Initial fill/setup PROBABLE CAUSETROUBLESHOOTING cont PROBLEMuct using Total Dispense method Inspect, clean, or replace tubingCOOLANT SCHEMATIC DIAGRAM EVAPORATORPROCESS TUBE COMPRESSOR44744 SCHEMATIC WIRING DIAGRAM JDF-2SSCHEMATIC WIRING DIAGRAM JDF-2S 44744 SCHEMATIC WIRING DIAGRAM JDF-4SSCHEMATIC WIRING DIAGRAM JDF-4S shown.See Initial Fill QUICK SETUP GUIDE - JDF-2S and JDF-4S JDF-2S shownPlumbing Requirements