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Chapter 4: e8 controller and bcm modules, 1 e8 controller, 1 e8 controller features and functions – AERCO Modulex EXT 1530 - 3060 User Manual

Page 72: Modulex ext

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MODULEX EXT

1530, 1912, 2295, 2677, 3060 Boilers

Installation, Operation & Maintenance Manual

CHAPTER 4: E8 CONTROLLER AND BCM MODULES

MODULEX boilers contain advanced and reliable electronic controls, the E8 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 E8 Controller

and BCM are described in this chapter.

CAUTION!

This chapter instructs how to operate and navigate the E8

Controller menus, sub-menus, and parameters, as well as

describing the functions of the BCM (Boiler Control Module).

However, before the boiler may be used, the E8 controller MUST

be first intitialized by entering language, year, month, day, and hour

in the Installation Menu as described in section 5.1, below.

4.1 E8 Controller

A standard component included in MODULEX units, the E8 Controller is responsible for the

staging and modulation of individual thermal heating modules in a MODULEX boiler and also

monitors supply and return water temperatures and domestic hot water zones.
The E8 Controller is housed in a compact enclosure measuring 5.7” (145 mm) x 3.9” (100 mm).

The Controller is mounted on the front of the MODULEX Boiler and contains all of the controls,

indicators and displays necessary to adjust, operate and troubleshoot the MODULEX Boiler.

The main components of the closed E8 Controller include the display, door, and data wheel

(see Figure 4-1).

4.1.1 E8 Controller Features and Functions

The E8 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 senor testing.

Supports Modbus integration with AERCO BMS II and AERCO Control System (ACS) or

Building Automation Systems. AERCO also offers a Communication Gateway to support

BACnet, Lonworks and N2 system integration.

Page 72 of 138

AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913

OMM-0095_0E

12/01/14

Phone: 800-526-0288

GF-139