Weil-McLain BCP-8S 677,1*7+&21752/72$&725$8/76, ,03257$17, 6481, 21752//2, 61625$8/7

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6(48(1&(		------ SEQUENCE	-------
/R+L/R+L/R/R+L+L	'HIDXOW/R+L/R+L	Lo/Hi/Lo/Hi
Hold Button: MENU/<System Startup>/..../Sequencing		Lo/Lo/Hi/Hi
‡ 'XULQJORZORDGFRQGLWLRQVVRPHERLOHUVUXQPRUHHI¿FLHQWZKHQWKHORZHUVWDJHVDUH		BACK	SAVE
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Hi/Hi. Then, the BCP-8S will sequence the lower stages of all Automatic boilers before sequencing the higher stages.

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higher stage of the lag boiler.

&21752//2*,&		--- CONTROL	LOGIC---
3,'2662YHU6L]HG6\VWHP	'HIDXOW3,'	PID
Hold Button: MENU/<System Startup>/..../Sequencing		OSS
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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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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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‡	3XUJH'HOD\		
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6(/(&7Settings/System Settings/Stage Settings/Reaction Time 6(/(&7Settings/System Settings/Stage Settings/Purge Delay 6(/(&7Settings/System Settings/Stage Settings/Min Runtime 6(/(&7Settings/System Settings/Stage Settings/Standby Delay 6(/(&7Settings/System Settings/Stage Settings/Last Stage Hold

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‡	7KURWWOH   	6(/(&7Settings/System Settings/Stage Settings/Throttle
6(1625)$8/7			--- SENSOR FAULT ---
6WDJHV2Q6WDJHV2II		'HIDXOW6WDJHV2Q	Stages	On
Hold Button: MENU/<System Startup>/..../Sensor Fault			Stages	Off
‡	The Sensor Fault will determine the operating status of all output stages that are set to		BACK	SAVE
	Auto or Standby when a sensor reads Short or Open.
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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

TOTAL CLEAR STARTED

Release buttons

and

Please Wait

menu to program the control after the defaults are loaded.

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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