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NORA Oilheat Technicians Manual

The 50200 is connected in the same way as earlier interrupted-ignition cad cell relays: • The black wire connects to the limit control • The white wire connects to all neutrals • The blue wire connects to the igniter or transformer • The orange wire connects to the burner motor The 60200 control has both “valvedelay on” and “motor-delay-off” features, so the wiring is slightly more complicated: • The black wire connects to the limit control • The white wire connects to all neutrals • The blue wire connects to the igniter or transformer • The orange wire connects to the burner motor • The violet wire connects to the oil valve • The red wire with white tracer (stripe) connects to constant power Operation The Carlin 60200 operates as follows: Each time power is applied to the red wire with white tracer, the control performs a boot up test to verify internal operation. After about 4 seconds, the amber LED comes on. The test continues for 6 more seconds and, if successful, the amber light turns off. If the test is not successful, the control repeats the test until successful. When a call for heat is initiated, the amber LED turns on and there is a 3 to 4 second delay while the control performs a safe start check. If no flame is sensed and all internal conditions are correct, the LED turns off and the control enters “valvedelay on” mode. The ignition is powered and one second later, the motor is powered. After completion of the “valve-delayon” cycle, the control goes into “trial for ignition.” The oil valve is powered and opens. Flame should be established within the “trial for ignition” period of 15 seconds. If the flame is not sensed by the end of “trial for ignition,” the control goes into lockout, the red LED comes on and the dry alarm contacts close. The control must be manually reset by pushing the reset button for one second and releasing. Once the flame is established, the ignition remains on for a short time to ensure flame stability and then shuts off. The burner will then run until the call for heat is satisfied, at which time the power to the oil valve will shut off. The motor will continue to operate for the specified “motor-delay-off” period. Once that cycle is completed, the control returns to standby mode. Chapter 11 Primary Controls Model 60200 Chapter 11—Primary Controls 11-15


NORA Oilheat Technicians Manual
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