Bunn LPG-2, G9WD, G2 TRIFECTA, G9-2T DBC, FPG-2 service manual Schematic Wiring Diagram MHG

Page 63

WIRING DIAGRAMS

L1

N

SCHEMATIC WIRING DIAGRAM MHG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN

 

 

 

 

 

GRN

 

P1, P2, P3 & P4 ARE

 

B

W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PINS OF A POLARIZED

 

L

H

 

 

 

 

 

 

P4

 

 

 

 

 

GRN

 

 

FOUR-PIN CONNECTOR

 

K

I

 

LIMIT

 

 

 

 

 

 

 

 

 

 

RIGHT GATE

 

 

 

 

 

 

 

 

THERMOSTAT

 

 

 

 

 

 

 

 

 

 

WHI

 

 

SOL

WHI/YEL

WHI/YEL

J5-1

 

 

 

 

 

 

 

 

 

 

P2

 

 

 

 

 

 

 

LIMIT

 

 

 

 

WHI/GRN

 

 

 

 

 

 

 

 

 

LEFT GATE

 

 

 

 

 

 

P1 THERMOSTAT

 

 

 

 

 

 

 

 

WHI

 

SOL

 

 

WHI/ORN

WHI/ORN

 

 

 

 

 

 

 

 

 

 

 

P3

 

 

CONTROL PC BOARD

 

 

RELAY

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHI

 

COIL

 

 

 

 

 

WHI

J5-5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RIGHT HOPPER SENSOR

 

 

 

YEL

 

 

 

 

 

 

 

 

 

 

 

 

 

J12-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YEL

 

 

 

 

 

 

 

 

 

 

 

 

 

ORN

 

 

 

 

 

 

LEFT HOPPER SENSOR

 

 

 

ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VIO

 

 

 

 

 

 

 

 

 

 

 

 

 

VIO

 

 

1

5

 

 

 

 

 

 

 

 

 

J8-1

J8-4

J16-

J16-

 

 

 

 

 

 

 

 

 

 

 

 

GRINDER MOTOR

 

 

 

 

 

 

 

 

 

 

BLK

WHI/BLU

M

WHI

 

 

 

 

BLU GRN YEL ORN

GRN WHI

RED BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RELAY

 

 

 

 

FUNNEL SENSOR

 

 

 

 

 

 

CONTACTS

 

 

 

 

 

 

 

 

 

MEMORY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BOARD

 

 

 

 

 

 

 

 

 

 

J10-1

 

J10-4

 

Switch Unit Assembly Codes

 

 

 

 

 

 

 

 

 

 

A1

Grind

 

 

DISPLAY BOARD

A2

Stop

 

 

J9-10

B1

Hidden Button "Left"

J9-1

J9-5

B2

Hidden Button "Right"

C1

Large Batch Size "Left"

1

 

 

 

 

 

 

16

 

C2

Medium Batch Size "Left"

 

 

 

 

 

 

 

 

 

 

C3

Small Batch Size "Left"

 

 

 

 

 

 

 

 

 

 

C4

Large Batch Size "Right"

 

 

 

 

 

 

 

 

 

 

C5

Medium Batch Size "Right"

 

 

 

 

 

 

 

 

 

 

C6

Small Batch Size "Right"

 

 

 

 

 

 

 

 

 

 

D1

"Digital" Left Hidden Button

 

 

 

 

 

 

 

STATIC SHIELD

D2

"Brewer" Center Hidden Button

 

 

 

 

 

 

 

 

 

 

D3

"Control" Right Hidden Button

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100 VOLTS AC,

 

 

 

 

 

 

 

 

 

 

 

 

 

120 VOLTS AC,

A2

C5

C6

C4

B2

B1

D3

D2

D1

C3

C2

C1

A1

240 VOLTS AC

 

 

 

 

 

 

 

 

 

 

 

 

 

2WIRE

SINGLE PHASE

50/60 HZ

SWITCH UNIT ASSY

63

41545 122209

 

Page 62 Page 64
Image 63
Page 62 Page 64
Contents Phone 217 529-6601 FAX 217 Post Office BOX SPRINGFIELD, IllinoisBUNN-O-MATIC Commercial Product Warranty Contents Recommended Daily Cleaning Capacity ChartIntroduction G9 WD Packaging & Shim Removal Housing. FigureModel G9-2 Model G9WDModel G9 Models G1, G2, G3 & G2 trifectaModels LPG, LPG-2E Operating Controls Model MHG Power ON/OFF Pad e 100V ModelsHopper/Batch Selector Pads d Batch Selector SwitchPressing the pad allows programming access see Pressing Grind initiates a timed grind cycleVolts for 230 volt models Problem Probable Cause RemedySwitch for testing procedures ProceduresTroubleshooting Supplies of whole bean coffee Placement proceduresHoppers From hopperProblem Probable Cause Remedy Component Locations Component AccessService BAG Sensor Switch Models G1, G2, G3 orCUP Sensor Switch Model G2 Trifecta AC Motor and Grind Chamber Remove the electrical access panel at the rear of the motorAC Motor and Grind Chamber Install shear plate Install burr rotor cupGrind Chamber Components DC Motor and Grind Chamber G1MD only DC Motor Terminals DC Motor and Grind Chamber G1MD onlyMotor and Grind Chamber Removal Motor Motor Models LPG & FPGSolenoid and Gates ROTOR/AUGER, Burrs and Motor Cover Install load disc 11 flat side towards rotorDechaffer Dechaffer Models LPG & FPGMotor Models G9, G9-2, MHG Franklin MotorMarathon Motor Remove and inspect stationary burr9 for wear Replace if excessively worn or damagedLocation Snubber Models G9, G9-2, MHGGrinder Scale Model G9WD only CalibrationLevel 2 Functions Capacitor Terminals Capacitor Model LPG onlyCircuit Breaker Circuit Breaker Models LPG, LPG-2E, FPG, FPG-2 DBCViewed from rear Hopper Selector Switch Model LPG-2E onlyRefer to Fig. below when reconnecting the wires Hopper Selector Switch Model G9-2 onlyOFF/ON/START Switch Terminals OFF/ON/START SwitchGrinders with Digital Timer Grinders with Analog TimerUrn/Carafe Switch Models G9, G9-2 Refer to the illustration below when reconnecting the wiresURN/CARAFE Switch Terminals Batch Selector Switch Model FPG Batch Selector SwitchBatch Selector Switch Terminals Potentiometer Terminals Potentiometer Model FPGRectifier Rectifier Models G1 MD, FPG-2 DBCRelay Terminals Test Procedure Disconnect the grinder from the power supplyRelay Early Model G-9 RelayRelay Models G1, G2, G3, G2 trifecta Remove the white/red wires from relay contacts 7Early Models Late Models RelayRelay Models MHG, FPG-2 DBC, Late Model G-9, G9-2, G9-2 DBC Slide plates must always remain flat for proper operation Hopper Slide PlatesHopper Slide Plates Models MHG Solenoids Solenoids Models MHG, FPG-2 DBC, LPG-2, G9-2, G9-2 DBCPlace the hopper selector switch in the left posi- tion Timer Model LPG-2ETimer Models LPG, FPG Timer Terminals Timer Model G9Timer Timer Model G9-2Digital Timer Analog TimerControl Board Model MHG Refer to when connecting wires Control BoardControl Board Terminals Membrane Switches Model MHG only Membrane Switch Membrane SwitchNuetral EMI Filter Terminals EMI Filter Models FPG & FPG-2Funnel Sensing Coil Models MHG & G9-2 DBC Disconnect the harness from the memory clock board Memory Clock Board Model MHGDisplay Board Model MHG MOV1 Triac MAP for MHGControls Right Gate @ J1-3 Triac MAP for FPG-2 DBC and G9-2 DBCControls Left Gate @ J1-1 Controls Relay @ J1-250/60 HZ G9-2 DBC, G9-2T DBC W/SMART FunnelRelay Coil WHI/GRN 50 HZ Schematic Wiring Diagram G9-2TB DBC W/SMART FunnelSchematic Wiring Diagram MHG Wire + Gnd Single PHASE, 50/60HZVolts AC, 120 Volts AC 60 HZ Volts AC Wire Single PhaseWiring Diagrams Wiring Diagrams Schematic Wiring Diagram LPG Schematic Wiring Diagram LPG W/Capacitor Wiring Diagrams Schematic Wiring DiagramWiring Diagrams Schematic Wiring Diagram LPG-B Schematic Wiring Diagram G1, G2, G3 & G2 trifecta Volts AC Wire Single Phase 60 HZVolts AC 50 HZ Schematic Wiring Diagram G9A HDBLK WHI/RED WHI/YEL WHI/BLU SCHEMATICWIRINGDIAGRAMG9-2A HD Wiring Diagrams FPG 60 HZ Wiring DiagramsFPG-2A DBC
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FPG-2, G9-2T DBC, G9-2, G2 TRIFECTA, G9 specifications

Bunn has established itself as a leader in the coffee and beverage equipment industry, providing advanced solutions that cater to a variety of needs. Among its notable products are the Bunn LPG-2, G9, FPG-2, G9-2, and G9WD, which showcase the company’s commitment to innovation, quality, and efficiency.

The Bunn LPG-2 is an ideal solution for high-volume coffee production. This model features a two-watt heating element that ensures rapid brew cycles and consistent temperature control. With a sleek design and user-friendly interface, the LPG-2 simplifies the brewing process while delivering exceptional coffee quality. Its large capacity enables institutions to serve multiple customers simultaneously, making it suitable for restaurants, cafes, and hotels.

The G9 series, particularly the G9 and G9-2, are known for their versatility and robust performance. Both models come equipped with a stainless steel hot water faucet, allowing users to draw hot water for various applications such as tea or soup preparation. The G9 model is designed for single-brew operation, while the G9-2 accommodates dual brewing, making it an efficient choice for those needing to meet demand quickly. Additionally, both G9 models have advanced brewing technology to ensure optimal flavor extraction.

The FPG-2 model stands out for its precision and control over brewing parameters. It features a touchscreen interface that allows users to customize brew strength and temperature, ensuring that each cup meets individual preferences. The FPG-2 is also remarkably user-friendly, which is essential in a busy environment. Its dual-brew functionality allows it to serve two different coffee options simultaneously, enhancing service efficiency.

The G9WD is designed for those who require the ultimate convenience. Featuring a built-in water line connection, the G9WD minimizes the need for manual refilling, ensuring a continuous supply of fresh coffee. This model is equipped with a programmable timer, allowing users to set brew cycles in advance, which can be a significant time-saver during peak hours.

In summary, the Bunn LPG-2, G9, FPG-2, G9-2, and G9WD offer a range of features that cater to various coffee brewing needs. With advanced technologies, efficient designs, and user-centric interfaces, these models are engineered to deliver consistent, high-quality beverages, making them essential tools for any coffee-focused establishment. Whether for high-volume brewing or versatile beverage options, Bunn's offerings stand out in the competitive landscape of beverage equipment.
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