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When OPEN, Check the sensor is connected and the wires are continuous to the BCP-8S. Finally follow the procedure for Incorrect Temperature or Pressure Display. When SHORT Remove the wires from the sensor terminals. The display should change to read OPEN. If it does not, the BCP-8S may be damaged.

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Remove the wires from the sensor terminals. The display should change to read OPEN. If it does not, the BCP-8S may be damaged. Take an ohm reading across the detached sensor wires. The ohm reading should correspond to the Temperature sensor Table. If it does not, the sensor may be damaged.

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System Trim. If reading is SHORT, remove the wires from the sensor terminals. The display should change to read OPEN. If it does not, the BCP-8S may be damaged.

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Check if the control has any of the following:

‡ %RLOHU0RGH6HWWLQJV- The BCP-8S will only sequence boilers their mode is set to Auto or Standby. Make sure non of the boilers have their Mode set to ON.

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7(03(5$785(	9DOXH
LQ'HJUHHV°)	LQ2KPV
-30	117720
-20	82823
-10	59076
0	42683
10	31215
20	23089
25	19939
30	17264
35	14985
40	13040
45	11374
50	9944
55	8714
60	7653
70	5941
80	4649
90	3667
100	2914
110	2332
120	1879
130	1524

Check if the control has any of the following:

‡ 6HWEDFNDQG'D\1LJKW6FKHGXOH,IUHGXFHGKHDWRFFXUVRQO\GXULQJVSHFL¿FKRXUVFKHFNWKH'D\1LJKW6FKHGXOHDQGWKH Setbackvalue.

‡ %RLOHU0RGH6HWWLQJV- The BCP-8S will only control boilers their mode is set to Auto or Standby. Check if any boilers have their Mode set to Manual, Off, or Standby.

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‡ 0LQLPXP5XQWLPH- Increase the Minimum Runtime only if all boilers tend to short-cycle. ‡ /DVW6WDJH+ROG,QFUHDVHWKH/DVW6WDJH+ROGRQO\LIWKHOHDGERLOHUWHQGVWRVKRUWF\FOH

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‡	5HDFWLRQ7LPHDQG0LQLPXP5XQWLPH- If the system is overshooting, increase the Reaction Time. This will allow the stages
	enough time to respond before bringing on another stage. However, if the system was oscillating, increase the Reaction Time and
	the Minimum Runtime.
‡	3,'YV266- If the application the system is used on requires fast response that the normal PID mode cannot provide, try using
	the OSS mode and adjust the Throttle Range according to the system requirements.

25