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Bunn H10X manual SERVICE cont Electronic Controls cont, Triac Assembly Removal and Replacement

Models: H10X

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SERVICE (cont.)

Electronic Controls (cont.)

Triac Assembly Removal and Replacement

NOTE - Each triac installation requires the use of an approved silicone heat sink compound. Bunn-O-Matic recommends the use of Dow Corning 340 compound or equivalent. It can be purchased direct from Bunn- O-Matic (P.N. M2522.1000)

1.Remove the existing triac assembly held in place with a 10-32 hex keps nut.

2.Apply a small amount of the silicone heat sink compound to the copper heat sink.

3.Securely fasten the new triac assembly to the rear panel in the same relative position as the one removed. Bunn-O-matic recommends tightening the nut to a torque setting of approximately 18 inch-pounds.

4.Disconnect the other ends of the old triac assembly wires.

5.Connect the TAN and BLU wires with spade termi- nals of the new assembly to the electronic control assembly, FIG. 2.

6.Connect the BLU wire with the ring terminal to the tank heater, FIG. 12.

7.Connect the WHI/VIO wire of the new assembly to the RED terminal at the terminal block.

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Bunn H10X manual SERVICE cont Electronic Controls cont, Triac Assembly Removal and Replacement

Contents

POST OFFICE BOX SPRINGFIELD, ILLINOIS PHONE 217 529-6601 FAX H10XBUNN-O-MATIC CORPORATION 10889.0000E 02/08 1995 Bunn-O-Matic CorporationBUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY THIS APPLIANCE IS HEATED WHENEVER CONNECTED TO A POWER SOURCE USER NOTICESREAD THE ENTIRE OPERATING MANUAL BEFORE BUYING OR USING THIS PRODUCT 00656.0000Electrical Hook-Up ELECTRICAL REQUIREMENTSPLUMBING REQUIREMENTS Plumbing Hook-UpINITIAL SET-UP CLEANINGCE REQUIREMENTS DRAINING THE DISPENSERPROBABLE CAUSE TROUBLESHOOTINGPROBLEM REMEDYPROBABLE CAUSE TROUBLESHOOTING contPROBLEM REMEDYInspect the tank assembly for excess TROUBLESHOOTING contPROBLEM Ready Indicator LED10-14 SERVICEComponent Access SERVICE cont Electronic Control Assembly Troubleshooting Check these items firstSERVICE cont Electronic Controls cont SERVICE cont Electronic Controls cont If voltage was present as described, proceed to #4. If voltage was not present as described, refer to the Wir- ing Diagram and check the dispenser wiring harness7. Fasten the new electronic control assembly to its bracket SERVICE cont Electronic Controls cont12. Replace the triac assembly 8. Reconnect the wires 9. Review the initial set-up proceduresSERVICE cont Electronic Controls cont Triac Assembly Removal and ReplacementSERVICE cont Limit Thermostat Limit Thermostat BLK to Terminal Block Reset BLK to Tank HeaterSERVICE cont Overflow Protection Switch FIG. 7 OVERFLOW PROTECTION SWITCHSERVICE cont Solenoid Valve P1994SERVICE cont Solenoid Valve cont SERVICE cont Tank Heater BLU to Triac Assy200-240 VOLTS AC WIRING DIAGRAM SCHEMATIC WIRING DIAGRAM H10XA2 WIRE + GND SINGLE PHASE P101