2
BSC Installation and Operation Manual
Content
BSC FUNCTION CHART . . . . . . . . . . 3
BSC OVERVIEW . . . . . . . . . . . . . . 4
Reset Ratio/Outdoor Reset ..........5
INSTALLATION . . . . . . . . . . . . . . . 6
Mounting the Enclosure ............6
Wiring the Power . ...............6
Input Wiring. ................ 6
Wiring the Outdoor sensor ...........6
Wiring The System Sensor. ..........7
Wiring an External Set Point (4-20mA Input) . 7
Wiring the Shutdown . .............7
Wiring the System Prove . ...........8
Wiring the Lockout Inputs ...........8
Wiring A Setback . ...............8
Output Wiring. ............... 9
Wiring the System Output ...........9
Wiring the Stage Outputs ...........9
Modulating Output Card ..........10
BACnet Communication Wiring ......10
Wiring The BSC to Extension Panels . . . 11
USING THE MENUS. ............12
Menu Basics .................12
The Main Display. ..............12
Display Stage Modulation Status. ......12
Display Messages ..............12
SYSTEM STARTUP . . . . . . . . . . . . . 13
Startup Sequence ..............13
Sensor Type .................13
EMS Input Mode ...............13
4 & 20mA Set Points .............16
Output Type .................16
Modulating Mode . ..............16
Operating Mode ...............16
Heat/Cool Mode ...............17
Sensor Fault .................17
MENU SETTINGS . . . . . . . . . . . . . . 14
MENU SETTINGS CONTINUED. ......15
OPERATING SETTINGS . . . . . . . . . . 17
Set Point ...................17
Outdoor Cutoff Temperature .........17
Reset Ratio. .................18
Offset . ....................18
Minimum Water Temperature ........18
Gain/Throttle .................19
Lead Stage . .................19
Lead Auto Rotate. ..............19
Purge Delay .................20
Lag Delay ..................20
Standby Time. ................20
System Run-On ...............21
Setback. ...................21
Rotate Time .................21
Last-Stage-Hold ...............21
$YRLG&RQÀLFWLQJ%RLOHU/LPLWV ........22
Set Point and Default Table .........22
SECURITY . .................23
Enable the Password. ............23
Change the Password ............23
Set the Time .................23
STAGE SETTINGS . . . . . . . . . . . . . 24
The Stage Menu ...............24
Moving around the Stages Menus ......24
Mode .....................24
Ignition %. ..................25
Modulation Start ...............25
Copy Settings (Stage A Only) ........26
MAINTENANCE . . . . . . . . . . . . . . . 27
System and Outdoor Trim ..........27
Stage Output Trim ..............27
Soft-off Delay. ................27
Modulation Speed ..............27
BACNET COMMUNICATION . . . . . . . . 28
BACnet Communication Option .......28
BACnet Device ID ..............28
IP Address ..................28
Mask Address ................28
Gateway Address ..............28
BSC BACnet Variable List ..........28
TROUBLESHOOTING. ...........30
BSC SPECIFICATIONS . . . . . . . . . . . 32
