Mounting Instructions; Electrode Installation; Cooling Tower - Advantage Controls MegaTronMT Installation Maintenance Repair Manual

Mounting Instructions

Select a mounting location that provides the operator easy access to the unit and a clear view of the
controls through the cover of the controller. The location should be convenient for grounded electrical
connections, the needed sample line plumbing, and should be on a stable vertical surface.

Electrode Installation

MegaTronMT controllers may come configured for various circulating water systems. Listed below are
instructions for typical cooling tower and boiler installations. Your specific installation requirements may
differ, but should conform to these instructions as much as possible for proper operation.
A.

Cooling Tower

The standard probe(s) and/or flow assembly for cooling tower installations is constructed of schedule
80 PVC and supplied with 3/4" slip fittings for installing into a sample line. To ensure proper operation
the sample line must have a flow rate of 3-10 gpm. Inlet pressure must be higher than outlet pressure in
order for water to flow past the electrode(s) to achieve the required rate. The probes are temperature
compensated for increased accuracy.
NOTES:
1. Install an isolation valve on either side of the flow assembly so electrodes can be
easily isolated for removal and cleaning.
2. A line strainer is recommended upstream from the probes to protect against fouling
and damage.
3. Mount pH or ORP electrodes vertically.
4. Green solution reference wire must be connected to either pH or ORP sensor. If both
pH & ORP are present on the system card, only one solution reference connection is
needed.
5. Systems with a flow switch require 2-3 gpm flow rate to operate outputs.
WARNINGS:
1. Electrodes are O-ring sealed, which, if damaged, will cause a leak.
2. Do not allow pH sensor tips to dry out, damage will occur.
3. Do not exceed a water temperature range of 32°F (0°C) to 140°F (60°C).
4. Do not exceed a maximum pressure of 125 psi (8.618 bar)
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