AERCO Control System (ACS) - Manual (Page 6)

MC2: 04/23/13 Page 6 of 144
GF-131
AERCO Control System (ACS)
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288
Installation, Operation, and Maintenance Manual
OMM-0081_0D
3.9.16 DHW OPTION (Domestic Hot Water Option) ......................................... 56
3.9.17 NUMBER DHW BLRS (Number of Domestic Hot Water Boilers) ........... 56
3.9.18 DHW SIGNAL (Domestic Hot Water Signal) .......................................... 57
3.9.19 NUM DHW PRIORITY (Number of DHW Priority Boilers) ...................... 57
3.9.20 VALVE WAIT STATES ........................................................................... 57
3.9.21 SYS RELAY OPTION (System Relay Option) ........................................ 57
3.10 BOOST TEMP ................................................................................................. 57
3.10.1 RET TEMP BST DIS (RETURN TEMPERATURE BOOST DISABLE) . 57
3.10.2 BOOST MAX TIMER .............................................................................. 58
3.11 TUNING MENU ................................................................................................ 58
3.11.1 PROPORTIONAL BND .......................................................................... 58
3.11.2 INTEGRAL GAIN .................................................................................... 58
3.11.3 DERIVATIVE GAIN ................................................................................ 59
3.11.4 Decreasing Boiler Cycles ....................................................................... 59
3.11.5 HI_DB_SETPT_EN (High Deadband Setpoint Enable) .......................... 59
3.11.6 DEADBAND HIGH ................................................................................. 59
3.11.7 DEADBAND LOW .................................................................................. 59
3.11.8 SETPT DOWN RATE (Setpoint Down (descending) Rate ..................... 59
3.11.9 DEMAND OFFSET ................................................................................. 59
3.12 RELAY MENU ................................................................................................. 60
3.12.1 SYS START TEMP ................................................................................ 60
3.12.2 SYS START OPTION ............................................................................. 60
3.12.3 SYS START INTLK ................................................................................ 60
3.12.4 AUX RELAY OPEN ................................................................................ 60
3.12.5 AUX RELAY CLOSE .............................................................................. 60
3.12.6 FAULT ALRM RELAY ............................................................................ 60
3.12.7 FAULT ALARM BLRS ............................................................................ 61
3.12.8 FAULT ALRM CLEAR ............................................................................ 61
3.13 CALIBRATION MENU ..................................................................................... 61
3.13.1 HDR SENS OFFSET .............................................................................. 61
3.13.2 OUTD SENS OFFSET ........................................................................... 61
3.13.3 4 - 20 MA OFFSET ................................................................................. 61
3.13.4 RETN SENS OFFSET ............................................................................ 61
3.13.5 RAMP UP %/MIN ................................................................................... 61
3.13.6 RAMP DOWN %/MIN ............................................................................. 62
3.13.7 RESET DEFAULTS ................................................................................ 62
3.13.8 PASSTHRU WRITE ............................................................................... 62
3.13.9 VALVE WAIT TIME ................................................................................ 62
3.13.10 SYSTEM OVERRIDE (Modbus Enable/Disable) .................................... 62