Table Of Contents - Watts AERCO EXT Installation, Operation & Maintenance Manual

Ufly Controller and BCM for Modulex EXT

Table of Contents:

CHAPTER 1: INTRODUCTION .............................................................................................................. 5
CHAPTER 2: UFLY CONTROLLER & BCM MODULES ........................................................................ 7
2.1 UFLY CONTROLLER ..................................................................................................................... 7
2.1.1 Ufly Controller Features and Functions..................................................................................... 7
2.1.2 Reading the Icons on Home Page ............................................................................................ 8
2.1.3 Display Modes ......................................................................................................................... 9
2.2 BOILER COMMUNICATION MODULE (BCM) .............................................................................. 10
CHAPTER 3: OPERATION, MENU & PARAMETERS ......................................................................... 11
3.1 SETUP MENU ............................................................................................................................. 12
3.1.1 Setting Time and Date ........................................................................................................... 12
3.1.2 Setting Comfort and Eco Building Reference Temperatures ................................................... 12
3.1.3 Setting Comfort and Eco Domestic Hot Water Setpoints ......................................................... 13
3.1.4 Display Settings ..................................................................................................................... 13
3.1.5 Language and Unit Settings ................................................................................................... 13
3.1.6 Password ............................................................................................................................... 14
3.2 HEATING MENU .......................................................................................................................... 14
3.3 DOMESTIC HOT WATER MENU ................................................................................................. 16
3.4 DEVICES MENU .......................................................................................................................... 17
3.5 BURNER MENU .......................................................................................................................... 18
3.5.1 Service Mode/Manual Firing Rate Function ............................................................................ 18
3.5.2 Manual Setpoint Function....................................................................................................... 19
3.5.3 Reset Burner Working Hours and Ignition Count .................................................................... 20
CHAPTER 4: UFLY SETUP AND PROGRAMMING............................................................................. 21
4.1 INDOOR/OUTDOOR RESET MODE ............................................................................................ 21
4.1.1 Wiring Connections ................................................................................................................ 21
4.1.2 Indoor/Outdoor Reset Operation Configuration ....................................................................... 22
4.1.3 Viewing the Boiler Setpoint .................................................................................................... 28
4.2 CONSTANT SET POINT MODE .................................................................................................. 28
4.3 0-TO-10-VOLT REMOTE SET POINT MODE ............................................................................... 29
4.3.1 Wiring Connections ................................................................................................................ 29
4.3.2 0-to-10-Volt Remote Setpoint Mode Operation Configuration ................................................. 30
4.4 DOMESTIC HOT WATER OPERATION USING A TANK SENSOR .............................................. 32
4.4.1 Sensor Wiring Connections .................................................................................................... 32
4.4.2 Configuring the Controller for DHW With a Tank Sensor ......................................................... 32
4.5 BOILER & PUMP ENABLE/DISABLE ........................................................................................... 36
CHAPTER 5: INPUT/OUTPUT BOX, BCM TERMINAL ASSIGNMENTS ............................................. 39
5.1 TERMINAL ASSIGNMENTS ........................................................................................................ 40
CHAPTER 6: BOILER COMMUNICATIONS MODULE (BCM) ............................................................. 41
6.1 BCM DESCRIPTION .................................................................................................................... 41
6.2 BCM FAULT RELAY .................................................................................................................... 43
6.2.1 BCM Fault Relay Wiring ......................................................................................................... 43
6.2.2 Clearing Faults ....................................................................................................................... 43
6.3 BCM: BACKUP CONTROLLER FUNCTION ................................................................................. 44
6.3.1 Backup Controller Setpoint ..................................................................................................... 44
6.3.2 Operating the BCM as a Backup Controller ............................................................................ 45
6.4 BCM CONTROL OF VARIABLE SPEED PRIMARY PUMP .......................................................... 48
6.4.1 Pump Control Wiring .............................................................................................................. 48
6.4.3 Pump Control Operation......................................................................................................... 48
6.5 CONTROL VIA MODBUS (THROUGH BCM) ............................................................................... 50
6.5.1 Operating Scenario ................................................................................................................ 50
6.5.2 Physical Modbus RS485 Wiring ............................................................................................. 50
6.5.3 AERCO BMS II/ACS Master to BCM Slave Wiring Connections. ............................................ 51
6.5.4 EMS or BAS Master to BCM Slave Wiring Connections .......................................................... 51
6.6 RS485 LOOP TERMINATION RESISTORS AND BIAS ................................................................ 51
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