
Infrared HeatSink (IRHS) Holding Unit Service Manual
3
SM-PH-IH-0003
TABLE OF CONTENTS
SPECIFICATIONS........................................................................................................................................ 5
 IRHS22 .............................................................................................................................................. 5
 IRHS23 .............................................................................................................................................. 6
 IRHS24 .............................................................................................................................................. 7
 IRHS34 .............................................................................................................................................. 8
 IRHS42 .............................................................................................................................................. 9
REMOVALANDREPLACEMENTOFPARTS..............................................................................................10
 EQUIPMENTUSEDINTHESEINSTRUCTIONS...................................................................................10
 ELECTRICALLOCKOUT/TAGOUTPROCEDURE...................................................................................10
 ESDWRISTSTRAP............................................................................................................................. 11
 DECKASSEMBLYCOMPONENTS.......................................................................................................12
  MENUBARS..............................................................................................................................12
  KEYPADDISPLAYS....................................................................................................................... 14
  RTD(TEMPERATURE)SENSORS.................................................................................................16
 HIGH LIMIT THERMOSTATS........................................................................................................18
 HEAT ELEMENTS........................................................................................................................21
  EMITTER(IRBULB)SOCKETS.....................................................................................................24
  EMITTERS(IRBULBS).................................................................................................................27
 CONTROLCOMPARTMENTCOMPONENTS–STANDALONE&KITCHENMINDERMODELS(only)...28
  POWERSWITCH......................................................................................................................... 28
  USBADAPTER............................................................................................................................28
  DAYPARTSWITCH.......................................................................................................................29
  RELAYS(SmartPowerModules)................................................................................................ 29
  CONTROLLER............................................................................................................................. 30
 TRANSFORMER..........................................................................................................................30
  RTDBOARD................................................................................................................................31
 FUSES AND FUSE HOLDER.........................................................................................................32
 CONTROLCOMPARTMENTCOMPONENTS–KITCHENMINDERMODEL(only)...............................33
  KITCHENMINDERMASTERBOARD(ifinstalled).......................................................................33
  KITCHENMINDERADAPTERBOARD(ifinstalled)......................................................................34
  MOUNTINGPLATE(ifinstalled).................................................................................................35
  COUPLERS(ifinstalled)..............................................................................................................36
 CONTROLCOMPARTMENTCOMPONENTS–VISORMODEL(only).................................................37
  12VPOWERCONTROLBOARD.................................................................................................37
  POWERCONTROLBOARD–ACM..............................................................................................38
  POWERCONTROLBOARD–103M............................................................................................39
  POWERCONTROLBOARD–TRIACDRIVE.................................................................................40
 FUSE HOLDER AND FUSES.........................................................................................................41
11/18/2015