AERCO C-More Controls Manual June 2010 - Manual (Page 4)

C-More Controller for Benchmark, Innovation & KC
USER MANUAL
Page 4 of 162 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 04/22/14
GF-112 Phone: 800-526-0288 OMM-0032_0E
4.2 FAULT MESSAGES. .................................................................................................55
4.2.1
Airflow Fault During Purge (On Units Less Than 2.5 Million BTUs) ........................58
4.2.2
Flame Loss During Ignition (On Units Less Than 2.5 Million BTUs) .......................58
4.2.3
Flame Loss During Run (On Units Less Than 2.5 Million BTUs) ............................59
SECTION 5 - INPUT/OUTPUT INTERFACES & OPERATING MODES ........................61
5.1 INTRODUCTION .......................................................................................................61
5.2 I/O INTERFACES ......................................................................................................61
5.2.1
Outdoor Sensor In .................................................................................................61
5.2.2
Air Sensor In ..........................................................................................................62
5.2.3
Analog In ...............................................................................................................62
5.2.4
B.M.S. (PWM) In ....................................................................................................62
5.2.5
Shield ....................................................................................................................62
5.2.6
mA Out ..................................................................................................................63
5.2.7
RS485 Comm ........................................................................................................63
5.2.8
0 – 10V Output ......................................................................................................63
5.2.9
Exhaust Switch In ..................................................................................................63
5.2.10
O2 Sensor (O2+, O2-) ...........................................................................................63
5.2.11
Flow Meter (Flw+, Flw-) .........................................................................................63
5.2.12
RS-232 Serial (TxD, RxD) ......................................................................................63
5.2.13
Interlocks ...............................................................................................................63
5.2.14
Fault Relay ............................................................................................................64
5.2.15
Auxiliary Relay Contacts ........................................................................................64
5.3 MODES OF OPERATION..........................................................................................65
5.3.1
Constant Setpoint Mode ........................................................................................65
5.3.2
Remote Setpoint Modes ........................................................................................66
5.3.3
Indoor/Outdoor Reset Mode...................................................................................67
5.3.4
Direct Drive Modes ................................................................................................68
5.3.5
Boiler Management System (BMS) ........................................................................69
5.3.6
Water Heater Management (WHM) ........................................................................70
5.3.7
Boiler Sequencing Technology (BST) ....................................................................71
5.3.8
Combination Control System (CCS) .......................................................................71
5.4 START SEQUENCE ..................................................................................................72
SECTION 6 - CALIBRATION AND DIAGNOSTIC MENUS ...................................................77
6.1 INTRODUCTION .......................................................................................................77
6.2 CALIBRATION PROCEDURES .................................................................................77
6.2.1
Stepper Feedback Calibration ................................................................................77
6.2.2
PWM In Adjustment. ..............................................................................................77
6.2.3
Analog In Adjustment .............................................................................................78
6.2.4
Flow In Adjustment. ...............................................................................................78
6.2.5
Supply Gas Pressure In Adjustment. .....................................................................78
6.2.6
Gas Plate dp In Adjustment ...................................................................................78
6.2.7
mA Out Adjustment ................................................................................................78
6.2.8
A/F Sensitivity ........................................................................................................79
6.2.9
Power Reset ..........................................................................................................79
6.2.10
Water Temp Reset .................................................................................................79
6.2.11
Gas Press Reset ....................................................................................................79
6.2.12
Min Off Time ..........................................................................................................80
6.2.13
Heater Tuning Display ...........................................................................................80
6.2.14
Heater Breakpoint Display .....................................................................................80
6.3 DIAGNOSTICS PROCEDURES ................................................................................80