Manuals / Bunn / Kitchen Appliance / Coffee Grinder

Bunn FPG-2, LPG-2, G9WD, G2 TRIFECTA, G9-2T DBC service manual RELAY cont, SERVICE Cont

Models: FPG-2 G9-2T DBC G9-2 G2 TRIFECTA G9 G9WD LPG-2

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Page 41

RELAY (cont.)

SERVICE (Cont.)

RELAY (cont.)

Removal and Replacement (120 Volt and 240V 60 Hz Models):

1.Remove the wires from the relay terminals.

2.Remove the two #6-32 screws securing the relay bracket w/relay to the grinder base and remove bracket and relay as an assembly.

3.Remove the #6-32 screw securing the relay to the bracket and remove relay and discard.

4.Install new relay to the mounting bracket using one #6-32 screw,

5.Mount the new relay w/bracket to the grinder base using two #6-32 screws.

6.Refer Fig. 41 when reconnecting the wires.

Removal and Replacement (230 volt 50 Hz Models):

1.Remove the wires from the relay terminals.

2.Remove the two #6-32 screws securing the relay to the grinder base.

3.Remove relay and discard.

4.Install new relay to the grinder base using two #6-32 screw.

5.Refer Fig. 41 when reconnecting the wires.

WHI/VIO from

Switch to Relay

K-6

WHI/BLU from Motor to Relay K-4

WHI/RED from Switch to Relay K-7 & K-9

WHI to Main

Harness 120V (B)

RED/BLK to Main

Harness 240V (B)

WHI/ORN from Bag Sensor Switch (A)

WHI to Main Harness 120V(0) RED/BLK to Main Harness 240V(0)

WHI/RED from Switch to Relay K-2 & K-8

WHI/ORN from Bag

Sensor Switch(1)

WHI/VIO from

Switch to Relay K-6

WHI/BLU from

Motor to Relay K-4

120V AND 240 VOLT AC MODELS

120V AND 240 VOLT AC MODELS

	WHI/VIO from	WHI to Main
	Switch to Relay	Harness 120V (B)
	K-6	RED/BLK to Main
		Harness 240V (B)
	WHI/BLU from
	Motor to Relay
	K-4	WHI/ORN from Bag Sensor
	WHI/RED from	WHI/ORN from Bag Sensor
	WHI/RED from	Switch (A)
	Switch to Relay	Switch (A)
	Switch to Relay
	K-7 & K-9

WHI to Main

Harness (0)

WHI/RED from Switch to Relay K-2 & K-8

WHI/ORN from Bag

Sensor Switch(1)

WHI/VIO from

Switch to Relay K-6

WHI/BLU from

Motor to Relay K-4

120 VOLT DC MODELS

120 VOLT DC MODELS

WHI/VIO from Switch to Relay K-6

WHI/BLU from Motor to Relay K-4

WHI/RED from Switch to Relay K-7 & K-9

RED from Main

Harness (B)

WHI/ORN from Bag Sensor Switch (A)

WHI/ORN from Bag

RED from MainSensor Switch(1) Harness (0)

WHI/RED from	WHI/VIO from
Switch to Relay	Switch to Relay K-6
K-2 & K-8	WHI/BLU from
	WHI/BLU from
	Motor to Relay	K-4

230 VOLT AC 50 Hz MODELS

P1707

230 VOLT AC 50 Hz MODELS

P3696

	EARLY MODELS		LATE MODELS
	EARLY MODELS	FIG. 41 RELAY TERMINALS	LATE MODELS

41	41545 122209

Image 41

Bunn FPG-2, LPG-2, G9WD, G2 TRIFECTA, G9-2T DBC service manual RELAY cont, SERVICE Cont

Contents

SERVICE & REPAIR MANUAL BUNN-O-MATICCORPORATIONGRINDERS Includes MHG, FPG FPG-2, LPG-2,G1, G2, G3BUNN-O-MATICCOMMERCIAL PRODUCT WARRANTY CONTENTS CAPACITY CHART RECOMMENDED DAILY CLEANINGINTRODUCTION ADJUSTMENTSSEE INSTRUCTIONS BELOW BEFORE USING MUST BE COMPLETED BY AUTHORIZED SERVICE PERSONNELG9 WD - Packaging & Shim Removal DO NOT PLUG INHopper Selector Switch Off/On/Start SwitchBatch Selector Switch Optional Dispense TimerModel G9 OPERATING CONTROLS ContinuedModels G1, G2, G3 & G2 trifecta Models LPG, LPG-2EModel G9-2TDBC Power ON/OFF Pad e 100V ModelsOPERATING CONTROLS Continued Model MHG OPERATING CONTROLS Continued Model FPG Batch Selector SwitchModel FPG-2DBC PAD cProblem TROUBLESHOOTINGProbable Cause RemedyProblem TROUBLESHOOTING contProbable Cause RemedyProbable Cause ProblemRemedy HoppersPROBABLE CAUSE PROBLEMREMEDY TROUBLESHOOTING contComponent Access SERVICEComponent Locations P602CUP SENSOR SWITCH MODEL G2 TRIFECTA SERVICE ContBAG SENSOR SWITCH Models G1, G2, G3 or SERVICE Cont AC MOTOR AND GRIND CHAMBERSERVICE Cont AC MOTOR AND GRIND CHAMBER contFIG. 5 GRIND CHAMBER COMPONENTS SERVICE ContAC MOTOR AND GRIND CHAMBER cont Location SERVICE ContSERVICE Cont DC MOTOR AND GRIND CHAMBER - G1MD ONLY contDC MOTOR AND GRIND CHAMBER - G1MD ONLY cont SERVICE Cont12.Slide burr auger rotor/spring assembly and burr SERVICE Cont MOTOR Models LPG & FPG11.Lay motor on it’s side SERVICE ContMOTOR Models LPG & FPG MOTOR Models LPG & FPG SERVICE Cont21.Discard old motor and housing assembly SERVICE Cont DECHAFFER Models LPG & FPGFIG. 15 MOTOR MOTOR Models G9, G9-2,MHGSERVICE Cont FIG. 16 MOTOR WIRINGReplace if excessively worn or damaged FIG. 17 MOTOR AND GRIND CHAMBERNOTE Burrs must be replaced as a set SERVICE ContSERVICE Cont SNUBBER Models G9, G9-2,MHGSERVICE Cont Grinder Scale Model G9WD only CALIBRATIONLEVEL 2 FUNCTIONS FIG. 20 CAPACITOR Capacitor Model LPG onlySERVICE Cont SERVICE Cont Circuit Breaker Models LPG, LPG-2E,FPG, FPG-2DBCSERVICE Cont Hopper Selector Switch Model LPG-2EonlySERVICE Cont Hopper Selector Switch Model G9-2onlyFIG 28 OFF/ON/START SWITCH SERVICE ContSERVICE Cont Urn/Carafe Switch Models G9, G9-2SERVICE Cont Batch Selector Switch Model FPGFIG 34 POTENTIOMETERS Potentiometer Model FPGSERVICE Cont SERVICE Cont Rectifier Models G1 MD, FPG-2DBCSERVICE Cont Relay Early Model G-9SERVICE Cont Relay Models G1, G2, G3, G2 trifectaSERVICE Cont RELAY contLocation SERVICE ContReplace if excessively worn or damaged SERVICE ContReplace if excessively worn or damaged Hopper Slide Plates Models MHGSERVICE Cont wires, and proceed to #7 SERVICE ContSERVICE Cont Timer Model LPG-2ETimer Model LPG-2E Timer Models LPG, FPGSERVICE Cont SERVICE Cont Timer Model G9Digital Timer Timer Model G9-2Analog Timer FIG 52 TIMERSERVICE Cont Control Board Model MHGSERVICE Cont FIG 55 CONTROL BOARDSERVICE Cont Membrane Switches Model MHG onlySERVICE Cont FIG 58 MEMBRANE SWITCHSERVICE Cont EMI Filter Models FPG & FPG-2SERVICE Cont Funnel Sensing Coil Models MHG & G9-2DBCSERVICE Cont Memory Clock Board Model MHGMEMORY BOARD GRN WHI RED BLKSERVICE Cont Display Board Model MHGTRIAC MAP for MHG TRIAC MAP for FPG-2DBC and G9-2DBC WIRING DIAGRAMS SCHEMATIC WIRING DIAGRAM2WIRE SINGLE PHASE 50/60 HZ G9-2DBC, G9-2TDBC W/SMART FUNNELWIRING DIAGRAMS SCHEMATIC WIRING DIAGRAM2WIRE SINGLE PHASE 50/60 HZ G9-2DBC, G9-2TDBC W/SMART FUNNELWIRING DIAGRAMS SCHEMATIC WIRING DIAGRAM G9-2TBDBC W/SMART FUNNEL100 VOLTS AC 2WIRE SINGLE PHASE 50 HZ 50/60 HZ 2WIRE SINGLE PHASESCHEMATIC WIRING DIAGRAM MHG WIRING DIAGRAMSWIRING DIAGRAMS SCHEMATIC WIRING DIAGRAM MHG with WD CBA2 WIRE + Gnd SINGLE PHASE, 50/60HZ 100 VOLTS AC, 120 VOLTS AC 240 VOLTS ACLPG-2E, LPGB-2E SCHEMATIC WIRING DIAGRAMWIRING DIAGRAMS 100 VOLTS AC 120 VOLTS AC 2 WIRE SINGLE PHASEWIRING DIAGRAMS 120 VOLTS AC 2 WIRE SINGLE PHASE 60 HZ WIRING DIAGRAMS SCHEMATIC WIRING DIAGRAM LPGWIRING DIAGRAMS LPG-ASCHEMATIC WIRING DIAGRAM 230 VOLTS AC 2 WIRE SINGLE PHASE 50/60 HZ120 VOLTS AC 2 WIRE SINGLE PHASE 60 HZ WIRING DIAGRAMS SCHEMATIC WIRING DIAGRAMLPG W/Capacitor 100 VOLTS AC 2 WIRE SINGLE PHASE 50-60HZ WIRING DIAGRAMS SCHEMATIC WIRING DIAGRAM LPG-BSCHEMATIC WIRING DIAGRAM G1, G2, G3 & G2 trifecta WIRING DIAGRAMS2 WIRE + GRD SINGLE PHASE 50/60 HZ 100 VOLT AC 120 VOLT AC 230 VOLT AC 240 VOLT ACSCHEMATIC WIRING DIAGRAM G9-URN/CARAFE SCHEMATIC WIRING DIAGRAM G9120 VOLTS AC 2 WIRE SINGLE PHASE 60 HZ 2 WIRE50 HZ SCHEMATIC WIRING DIAGRAM G9A HDWIRING DIAGRAMS SCHEMATIC WIRING DIAGRAM G9WD-RHSCHEMATIC WIRING DIAGRAM G9 SCHEMATIC WIRING DIAGRAM G9WIRING DIAGRAMS 120 VOLTS AC 2WIRE SINGLE PHASE 60 HZWIRING DIAGRAMS 230 VOLTS AC 2 WIRE SINGLE PHASE 50 HZSCHEMATICWIRINGDIAGRAMG9-2AHD WIRING DIAGRAMS WIRING DIAGRAMS FPGA120 VOLTS AC 2WIRE SINGLE PHASE 60 HZ 230 VOLTS AC 2WIRE SINGLE PHASE 50/60 HZWIRING DIAGRAMS 100 VOLTS AC 120 VOLTS AC 2WIRE SINGLE PHASEFPG-2DBC, FPGB-2DBC 60 HZ230 VOLTS AC FPG-2ADBC50 HZ SCHEMATIC WIRING DIAGRAM