BACHMANN BS203 Channel input card

Following are the modes of operation: 1. When power is applied to the control (Ll-L2) and the operating control circuit is closed (L1-3), the purge period begins and the firing rate motor is sent to the Hi Purge position. If the Check-Run Switch is moved to the Check position before the open damper 30 second purge period ends, the control will display: The control will hold in this position indefinitely to allow the operator to make interlock switch and linkage adjustments. To continue in the cycle, move the Check-Run switch to Run to allow the control to advance.

If the Check-Run switch 

is moved to the Check position after the open damper purge period, but before low fire start period ends, the control will display: The control will hold in this position indefinitely to allow the operator to make interlock switch and linkage adjustments. To continue the cycle, moving the Check-Run Switch to Run will allow the control to advance.During the PTFI period, switching to the Check position will stop the program in the PTFI period, allowing for pilot and/or scanner alignment adjustments to be made. The control will display: It will hold in this position indefinitely as long as the flame signal strength is above the threshold of 10. If it drops below 10 for thirty (30) consecutive seconds, lockout will occur and the message on the display will read Flame Fail PTFI.

Common problem

1. We have this product in stock, and we can deliver it to you at any time when you need it badly.

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