Service manual

OPERATION ...................................................................................... 34
SETUP MODE .................................................................................... 34
PROBE TEST ..................................................................................... 35
SOLID STATE RELAY TEST ...................................................................... 35
COMPUTER CONTROL CALIBRATION (WKGC/WKGCX) ............................................. 35
ELECTRICAL OPERATION ................................................................................ 37
COMPONENT FUNCTION ............................................................................ 37
COMPONENT LOCATION ............................................................................. 38
SEQUENCE OF OPERATION ......................................................................... 43
WKG, WKGX WITH ROAST & HOLD OPTION (MECHANICAL KX THERMOSTAT) ................. 43
WKGD, WKGDX WITH ROAST & HOLD OPTION (SOLID STATE
TEMPERATURE CONTROL) .................................................................. 47
WKGC, WKGCX (ROAST & HOLD STANDARD ON COMPUTER MODEL) ......................... 53
COOL DOWN CYCLE (COMPUTER CONTROL MODEL) .......................................... 55
SCHEMATICS ........................................................................................ 55
WKG, WKGX MECHANICAL (KX) CONTROLS .................................................... 55
WKG, WKGX MECHANICAL (KX) CONTROLS, ROAST & HOLD OPTION ......................... 56
WKGD, WKGDX SOLID STATE TEMPERATURE CONTROL ...................................... 57
WKGD, WKGDX SOLID STATE TEMPERATURE CONTROL, ROAST & HOLD OPTION ............ 58
WKGC, WKGCX COMPUTER CONTROL (ROAST & HOLD STANDARD) .......................... 59
WIRING DIAGRAMS .................................................................................. 61
WKG, WKGX MECHANICAL (KX) CONTROLS .................................................... 61
WKG, WKGX MECHANICAL(KX) CONTROLS, ROAST & HOLD OPTION .......................... 62
WKGD, WKGDX SOLID STATE TEMPERATURE CONTROL ...................................... 64
WKGD, WKGDX SOLID STATE TEMPERATURE CONTROL, ROAST & HOLD OPTION ............ 66
WKGC, WKGCX COMPUTER CONTROL (ROAST & HOLD STANDARD) .......................... 68
TROUBLESHOOTING ..................................................................................... 71
ALL MODELS ......................................................................................... 71
COMPUTER CONTROL MODELS ONLY .............................................................. 72
ERROR CODES .................................................................................. 73
WKG Series Full Size Gas Convection Ovens
© WOLF 2015
Page 3 of 74 F32700 Rev. B (0315)