Henkel K-450 manual Changing the Thermostat, Thermostat Calibration

Model K-450 Wiring Diagrams

120 Volts / 1000 Watts

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)

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.

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

15 AMP/ 125-Volt Grounding Plug

NEMA 5-15P Provided

240 Volts / 1000 Watts

Grounding Plug

NEMA 5-15P

480 Volts / 1000 Watts

20 AMP/ 480-Volt

Grounding Plug NEMA 8-20P Not Provided