12' & 18' Operator's Manual.pub - Mathews Company
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12' & 18' Operator's Manual.pub - Mathews Company

12' & 18' Operator's Manual.pub - Mathews Company 12' & 18' Operator's Manual.pub - Mathews Company

mathewscompany.com
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20.07.2015 Views

18’ Tower Dryer High Voltage Cabinet1 Start Contactor 13 Ignition Module2 Fan #1 Contactor 14 Air Pressure Switch #13 Fan #2 Contactor 15 Air Pressure Switch #24 Fan #3 Contactor 16 Air Pressure Switch #35 Start Contactor B 17 Disconnect Switch6 Ground Lug 18 8 Amp Circuit Breaker7 Time Delay 19 2 Pole 25A, 277 VAC Circuit Breaker8 3 HP AC Drive Unit 20 2 Pole 30A 277 VAC Circuit Breaker9 Discharge Relay 21 Fan #1 Protector10 Alarm Relay 22 Fan #2 Protector11 Fan Control Relay 23 Fan #3 Protector12 Fill Relay18

Ignition for 12’ and 18’ Tower Dryers1 Reset Button2 LED Indicator Lights3 High Limit4 High Limit Bulb5 Ignition TransformerLED Indicator LightsOPR CTRL (Operating Control)LED is energized whenever the burner control switch and all other various limit switches are closed and power is appliedto Terminal #7.INTRLCK (Interlock):LED is illuminated whenever power is detected on Terminal #6, indicating that the air flow switch or other running interlockis closed. If the operating control is closed and the running interlock switch remains open, this LED will flash at a 1-second rate indefinitely for the MEP100 and MEP200 family. Lockout will occur if the switch remains open for 10 minutesin the MEP500 family. This LED will blink when configured as a flame switch and flame is detected.PTFI: LED is illuminated only during the pilot trial for ignition period and the stabilization period when so equipped.Flame: LED is on whenever a flame signal is detected, and the control is not in a locked-out state.Alarm: LED flashes when an alarm condition is detected and is used as an address indicator. During an alarm condition,the Alarm LED is made to flash at approximately a 1-second rate. The remaining four LEDs are illuminated as acoded sequence identifying the reason for the lockout. For instance, for a LOCK OUT - FLAME FAIL - PTFI, the INTER-LOCK, PTFI and FLAME LEDs will all be lit steady, with the Alarm LED flashing. This remains true if power is removedand then restored in a locked-out condition.While in the Idle or Off state, the LEDs are made to flash sequentially to show the operational status of the control everyminute. The LEDs can be tested by pressing and releasing the reset push button, while in the Idle or Off state.19

18’ Tower Dryer High Voltage Cabinet1 Start Contactor 13 Ignition Module2 Fan #1 Contactor 14 Air Pressure Switch #13 Fan #2 Contactor 15 Air Pressure Switch #24 Fan #3 Contactor 16 Air Pressure Switch #35 Start Contactor B 17 Disconnect Switch6 Ground Lug 18 8 Amp Circuit Breaker7 Time Delay 19 2 Pole 25A, 277 VAC Circuit Breaker8 3 HP AC Drive Unit 20 2 Pole 30A 277 VAC Circuit Breaker9 Discharge Relay 21 Fan #1 Protector10 Alarm Relay 22 Fan #2 Protector11 Fan Control Relay 23 Fan #3 Protector12 Fill Relay18

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