Chapter 5: Ufly Controller & Bcm Modules; Ufly Controller; Ufly Controller Features And Functions - Watts AERCO EXT Installation, Operation & Maintenance Manual

Modulex EXT Commercial Series
CHAPTER 5: UFLY CONTROLLER & BCM MODULES
CHAPTER 5: UFLY CONTROLLER & BCM MODULES
MODULEX boilers contain advanced and reliable electronic controls, the Ufly Controller and the
BCM (Boiler Communications Module), which provide comprehensive programming and
monitoring of the MODULEX boiler and its functions. Features and functions of the Ufly
Controller and BCM are described in this chapter.

5.1 Ufly Controller

A standard component included in MODULEX units, the Ufly Controller is responsible for the
staging and modulation of individual thermal heating modules and also monitors supply and
return water temperatures and domestic hot water zones.
The Controller is mounted on the front of the MODULEX Boiler and contains all of the controls,
indicators and displays to adjust, operate and troubleshoot the MODULEX Boiler.

5.1.1 Ufly Controller Features and Functions

The Ufly features the following functions for MODULEX boilers:
•
Shares the heating load among as many of the boiler's thermal heating modules as possible,
maximizing the overall operating efficiency of the boiler.
•
Provides access to all testing/programming parameters of each individual heating module:
operation test, operation time, boiler freeze protection and pump's anti seize program.
•
Drives lead-lag burner operation based on operating hours. The boiler module with the least
burner operating hours is the first to start and the burner with the most operating hours is the
first to stop.
•
Supports DHW (Domestic Hot Water) production using a dedicated sensor to control a
dedicated pump or 3-way diverting valve for storage tank temperature control.
•
Supports a manual operation service mode to control individual modules during
troubleshooting or combustion calibration procedures.
•
Drives diagnostics such as relay and sensor testing.
•
Supports Modbus integration with AERCO Control System (ACS) or Building Automation
Systems. AERCO also offers a Communication Gateway to support BACnet, Lonworks and
N2 system integration.
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