BLUE M
Blue M - - DC 146 Series Industrial Ovens, Models DC, DCW, DCI, DCC
Page 64
9. For the Model DCI only, the following sequence will occur for the control of inert gas into the oven.
The Eagle Signal B866-511 Purge Timer will energize and start the oven purge cycle. The heating
system is disabled. The Purge light will illuminate. Adjust the Purge Flow Adjustment needle valve on
the gas flowmeter according to the Purge Flow Rate in the Gas Flow Rate Table of Section 7.1 for your
oven.
WARNING! DO NOT ALLOW CHAMBER PRESSURE TO EXCEED 1.0 PSIG.
After the initial purge cycle time has elapsed, the Purge Timer will shut off the high rate of inert gas
flow into the oven. The Purge light will turn off. Adjust the Run Flow Adjustment Valve on the Gas
Control Housing according to the Run Flow Rate in the Gas Flow Rate Table of Section 7.1 for your
oven. This lower flow rate will then be maintained during the heating process and the cool down
process.
The heating circuitry will then be enabled and the Heat Enable light will illuminate. The Temperature
Controller’s heat control output will start cycling power to the heaters.
10. For all ovens with a profiling type controller: When the heating / soak cycle is completed, Event
No. 2 of the profiling controller will close to energize the Cooling Water solenoid valve, when
employed. Cooling water will now flow into the water cooling coil to cool oven. The Cooling light will
illuminate.
11. When your process cycle is complete, open the oven door to unload your product. The circulation
blower will stop if the door switch is employed. You may start another cycle.
Important Notes!
Warning! Do not open oven doors until oven temperature drops below 200° F (93° C) when
applicable. Human exposure to temperature extremes can cause injury. Take appropriate
precautions when handling product.
Always cool the oven down below 167° F (75° C) before shutting it down. Otherwise, damage to the
circulation motor shaft bearings will result.
MAIN CIRCUIT BREAKER
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