THERMOCOUPLE MEASUREMENT
TEMPERATURE (°F) | D.C. MILLIVOLTS |
200° | 2.8 |
250° | 4.0 |
300° | 5.1 |
350° | 6.0 |
400° | 7.1 |
450° | 8.2 |
500° | 9.3 |
550° | 10.4 |
600° | 11.5 |
THERMOSTAT, HI-LIMIT – REPLACEMENT
1.Shut off power at main breaker.
2.Remove rear cover, remove right side heating element cover.
3.Remove
4.Form 90° bend in
5.Reassemble in reverse order and check system operation. Be sure to reset thermostat before testing.
HEATING ELEMENT, MAIN – REPLACEMENT
1.Shut off power at main breaker.
2.Remove conveyor, finger assemblies and plenum front. Remove rear cover and appropriate heating element cover.
3.Remove wires from heating element and mark wiring for reassembly.
4.Remove mounting screws and remove heating element.
5.Reassemble in reverse order and check system operation.
HEATING ELEMENT, INFRARED – REPLACEMENT
1.Shut off power at main breaker.
2.Remove conveyor and lower finger assemblies. Remove front conveyor support from oven cavity.
3.Remove front cover and heating element cover. Disconnect wiring from heating element and mark wires for reassembly.
4.Reassemble in reverse order and check system operation.
MAIN CONTROL – REPLACEMENT
1.Shut off power at main breaker.
2.Remove control box top, front panel and rear control box cover.
3.Remove display board from front panel by pulling board off of it’s mounting pins.
4.Remove three screws from main control mounting bracket and remove main control board and its mounting bracket. Remove main control from it’s mounting bracket by pulling the control from the mounting bracket.
5.When installing new control, be sure to use ground strap so that there is no static electricity. When installing new control, be sure to set the jumpers on the control for proper
DTF – 1920 Series Service Manual | 13 |
