Introduction; Model Numbering; Description Of Unit - Advantage Controls MegaTron Installation, Maintenance And Repair Manual

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Introduction

The MegaTron microprocessor based controllers are designed to provide a wide range of control functions for
recirculating water treatment systems. The controller is programmed through a front panel keypad and can
be configured to provide a customized control system for your application. Your particular unit's functions can
be determined by comparing the units model number to the Model Numbering table listed below.

Model Numbering

MegaTron units have several base system control functions and unit optional features. Your unit may be
supplied with one or more of the features described in this manual. To determine what features apply to your
unit check the model number label located on the controller enclosure.
Base System Control Functions
C - Tower Conductivity Control
B1- Boiler RTD Conductivity Control
B2- Boiler No Temp Conductivity
P - pH Control
Q - Dual pH Control
R - ORP Control
T - Temperature Control
F1 to F5- Chemical Feed Timers
E - Flow Switch
Model numbers start MG followed by the Base System Control functions. If multisystem, all of the control
functions of system one are followed by a dash then the functions for the next system. If the next system(s) is
the same as the one before a (-X2, X3 or X4) is used. Another dash separates the whole unit options listed
after all base system control functions. Example: MGCPF3E-X2-DHY.
Notice: Your unit may not have all features and functions described in this manual. This list represents our
most popular options, additional option codes are available. Consult representative for more details.

Description of Unit

MegaTron controllers may be configured to control one to four separate systems including cooling tower
and boiler applications and may have various features depending on the model number. Whether the unit is
controlling 1 to 4 systems each individual system can be configured with a variety of the functions / features
and there may be feature differences between the systems on a unit with multiple systems. (See model
numbering table above).
Control Functions
Each of these control functions are based on an analog input from a probe and will include user settable relay
control settings along with a High and Low Alarm setting and Limit Timer. Each control function will include
a control relay output. When the reading reaches the Set Point the control relay is activated until the reading
changes by the Differential amount.
Whole Unit Optional Features
A - Conduit Connections (115 VAC)
A3 - Liquid tights only for (220-240 VAC)
D - Dry Contact Relays
H - Remote Communications bus only
H1- Internet Connect Communications
H4- Internet Phone Modem Communications
H5- Internet with Cell Modem Router
K - Additional Control Relays
N8 - 4-20mA inputs
O6 - 4-20mA outputs
S - Saturation Index (must have pH)
W - Auxiliary Flow Meter Inputs
Y - ETL Agency Listing / Approvals
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