Weil-McLain BCP-8X Boiler User Manual


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Hold Button: MENU/<System Startup>/..../Sequencing
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Hi/Hi. Then, the BCP-8S will sequence the lower stages of all Automatic boilers before
sequencing the higher stages.
------ SEQUENCE -------
Lo/Hi/Lo/Hi
Lo/Lo/Hi/Hi
BACK SAVE
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higher stage of the lag boiler.
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Hold Button: MENU/<System Startup>/..../Sequencing
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Boiler Min. Run Time. The PID relies on the rate of change in the system pressure.
The PID logarithmic calculations foresee changes and sequence stages based on those
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--- CONTROL LOGIC---
PID
OSS
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the set point. At one Throttling range below the Set Point, only one stage will be on. For each additional Throttling range
below the Set Point, an additional stage will be activated. The last stage on will be allowed to exceed the Set Point by one full
Throttling range before turning off that stage. This helps to prevent the last stage from short cycling. See Throttle Range.
When PID is selected, the following are the settings that directly affect this mode of operation:
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Hold Button: MENU/<System Startup>/..../Sensor Fault
 The Sensor Fault will determine the operating status of all output stages that are set to
Auto or Standby when a sensor reads Short or Open.
--- SENSOR FAULT ---
Stages On
Stages Off
BACK SAVE
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the Shutdown was active, all stages will be Off on a sensor fault.
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To Reset the BCP-8S control to its original factory defaults, follow the following steps:
 Power down the control.
 Hold down the two right most buttons while powering the control back up until the To-
tal Clear Started screen appears. The Display will direct you to the Startup
menu to program the control after the defaults are loaded.
TOTAL CLEAR STARTED
Release buttons
and
Please Wait
NOTE: After resetting the control to the original factory defaults, the user must go through all control settings.
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After performing a total reset, do not turn off power to the control until all Startup settings have been made. Otherwise,
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