Bunn HW2 - Electrical and Plumbing Requirements; Electrical Specifications; Water Supply Connection; Plumbing Hook-Up Steps

3
WARNING - Inspection, testing, and repair of electrical equipment should be performed only by qualified service
personnel. Disconnect the dispenser fromthe power source when servicing, except when electrical tests are
required and the test procedure specifically states to connect the dispenser to the power source.
CONTENTS
TroubleShooting ...........................................................................................................................4
Component Access ......................................................................................................................7
Electronic Controls ................................................................................................................. 8-11
Limit Thermostat ........................................................................................................................12
Safety Overflow Switch ..............................................................................................................13
Solenoid Valve (Late Models).....................................................................................................14
Solenoid Valve (Early Models) ...................................................................................................15
Tank Heater ................................................................................................................................16
Steam Sensor ............................................................................................................................17
Dispense Valve (H5-PC) .............................................................................................................18
Dispense Valve (H3EA Element) ................................................................................................. 19
Dispense Switch (H3EA Element) ..............................................................................................20
Mechanical Thermostat .............................................................................................................. 21
Contactor ...................................................................................................................................22
Liquid Level Board .....................................................................................................................23
Schematic Wiring Diagrams .......................................................................................................25