BOILER SEQUENCING CONTROL User Manual

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BSC Installation and Operation Manual

 +ROGLQJ8QWLOÛ) 7KH/HDGVWDJHLVLQ/DVW6WDJH+ROG7KLVH[DPSOHVKRZVWKDWWKHOHDGVWDJHZLOOWXUQRIIZKHQ

V\VWHPWHPSHUDWXUHUHDFKHVÛ)6HH/DVW6WDJH+ROGRQSDJH21.

 6\VWHP5XQ2Q 7KH6\VWHPUHOD\LV21IRUWKH6\VWHP5XQ2Q'HOD\7KLVH[DPSOHVKRZVWKDWLWZLOOUHPDLQLQ

6\VWHP5XQ2QIRUDQDGGLWLRQDOVHFRQGVEHIRUHWXUQLQJRII6HH6\VWHP5XQ2QRQSDJH21.

 :DLWLQJIRU3URYH 7KH6\VWHPUHOD\LV21DQGWKHSURYHWHUPLQDOVDUHRSHQEHIRUHWKHOHDGERLOHUUHOD\FDQHQHUJL]H6HH

Prove wiring on page 8.

 3URYH)DLOXUH $IWHUERLOHUVKDYHUXQIRUDZKLOH3URYHVLJQDOZDVRSHQHG$OOERLOHUUHOD\VZLOOGHHQHUJL]H

+RZHYHUWKH6\VWHPUHOD\ZLOOUHPDLQHQHUJL]HG6HH3URYHZLULQJRQSDJH8.

SYSTEM STARTUP

STARTUP SEQUENCE

 :KHQSRZHUHGWKH%6&SHUIRUPVDVHOIWHVWGLDJQRVWLFVRQLWVFRPSRQHQWV

 $IWHUWKHWHVWKDYHEHHQVXFFHVVIXOO\FRPSOHWHGWKH%6&ZLOOLQLWLDOL]HWKH%6&XVLQJDGHVFHQGLQJFRXQWHUVWDUWLQJIURP

 2QWKH¿UVWSRZHUXSWKH6\VWHP6WDUWXSPHQXVFUHHQVZLOODSSHDUDIWHUWKHLQLWLDOL]DWLRQLVFRPSOHWH,ILWGRHVQWWKH%6&KDV

DOUHDG\EHHQFRQ¿JXUHG7RFKHFNWKHFRQ¿JXUDWLRQRUWRPDNHFKDQJHVIROORZWKHSURFHGXUHRQWKH6\VWHP6WDUWXSPHQX

 7KH6\VWHP6WDUWXSPHQXGHWHUPLQHVWKHKRZ%6&VKRXOGFRQWUROWKHV\VWHP7KDWLVZK\\RXWKHXVHUPXVWJRWKURXJKVHYHUDO

warning screens to indicate the importance and severity of their changes.

 3UHVVWKHADJUST/SELECT knob once on each screen to accept its value and move to the next setting.

SENSOR TYPE

Set Point: (°F, °C), Pressure: (15psi, 30psi, 100psi, 200psi, 300psi), Reset: (°F, °C)

Default: Set Point °F

SELECT: MENU/<System Startup>/..../Sensor Type

 5HVHWPRGHUHTXLUHVDQRXWGRRUVHQVRUWREHFRQQHFWHGWRWHUPLQDOV$DQG$'2

NOT select Reset without an outdoor sensor.

 7KHVDPH:HLO0F/DLQWHPSHUDWXUHVHQVRUFDQGLVSOD\LQHLWKHU)RU&

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and the BSC will operate as a Set Point Control in degrees Fahrenheit.

 ,I&LVVHOHFWHGDOOWHPSHUDWXUHVDQGVHWWLQJVZLOOEHGLVSOD\HGLQGHJUHHV&HOVLXVDQG

the BSC will operate as a Set Point Control in degrees Celsius.

--- SENSOR TYPE ---

15psi

30psi

100psi

200psi

300psi

Reset

 6HWSRLQWPRGHGRHVQRWUHTXLUHDQRXWGRRUVHQVRU,IDQRXWGRRUVHQVRULVFRQQHFWHGLQDQ\RIWKH7HPSHUDWXUHRU3UHVVXUH6HW

Point modes it will be used only as an outdoor cutoff measurement.

 7KH%6&ZLOORQO\PHDVXUHWKHRXWSXWWHUPLQDOVRIWKHV\VWHPVHQVRUVVHOHFWHGIURPWLVPHQX

EMS INPUT MODE

Setback, EMS Control Default: Setback

SELECT: MENU/<System Startup>/..../Sensor Type/EMS Input Mode

(Not Available In Reset Sensor Types)

- EMS INPUT MODE -

Setback

EMS Control

Setback

 ,WDOORZVWKH6HW3RLQWWREHDGMXVWHGPDQXDOO\

 ,IGHVLUHGDGU\FRQWDFWVZLWFKFDQEHZLUHGDFURVVWKHEMS INPUT terminals (SIGNAL and +) to allow the panel to hold a lower

Set Point when less load is required.

 :KHQVHOHFWLQJ6HWEDFNWKHUHLVQRUHTXLUHPHQWIRUDQ\ZLULQJDFURVVWKHEMS INPUT terminals. DO NOT select EMS-Control

unless your system meets the requirements below.

External Set Point (4-20mA EMS Input)

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system parameters. See Wiring External Set Point on page 7.

 $QDFWLYHVLJQDOPXVWEHZLUHGLQWRWKH%6&EMS terminals. If the BSC does not receive a signal between 2mA and 22mA, it will

NOTDFWLYDWHDQ\VWDJHV7KHGLVSOD\ZLOOLQGLFDWHShutdown by EMSRQWKHGLVSOD\PHVVDJHOLQH

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User Manual - Page 13