Henkel KEEN OVENS K-450 - Manual (Page 6)

Model K-450 Wiring Diagrams
120 Volts / 1000 Watts
15 AMP/ 125-Volt Grounding Plug
NEMA 5-15P Provided
CHANGING THE THERMOSTAT
1. Disconnect from the power source.
2. Remove rods from oven.
3. Remove element cover and pull temperature-sensing
tube from holder.
4. Loosen setscrew in thermostat knob and remove knob.
Remove chrome mounting ring (bezel).
5. Remove nine (9) mounting screws from leg assembly
and lift oven clear of leg
6. Remove electrical leads from thermostat and remove
thermostat by pulling sensing tube through conduit.
7. To replace new thermostat, pass sensing tube through
conduit, being sure there is adequate length to reach the
holder.
8. Reconnect electrical leads to new thermostat and mount
thermostat to chrome ring (bezel) loosely with red indicting
line in upward position. Place knob on thermostat stem and
check rotation of knob. When knob turns freely, remove and
tighten chrome mounting ring (bezel)
240 Volts / 1000 Watts
Grounding Plug
NEMA 5-15P
9. Replace leg assembly being sure wiring is not
crimped between oven wall and leg.
10. Replace thermostat knob.
11. Insert temperature-sensing tube into holder and
replace element cover.
THERMOSTAT CALIBRATION
1. Turn on unit. Set control dial at desired
temperature.
2. Allow control to cycle at least three times and
observe temperature at middle of fourth cycle.
3. If calibration is required, carefully remove dial
knob. Do not turn shaft.
480 Volts / 1000 Watts
20 AMP/ 480-Volt
Grounding Plug NEMA 8-20P Not Provided
4. Turn calibration screw in center of dial shaft.
(Turning set screw clockwise decreases temperature.
Turning setscrew counter-clockwise increases
temperature. One-fourth [1/4] turn equals
approximately 35ºF.)
5. Allow unit to cycle at least three times and
observe temperature at middle of fourth
cycle. Readjust calibration screw if
necessary. Replace dial knob