Balboa Water Group ML551 User Manual

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EL/GL Series - Mach 3

ML551/ML554 User Guide

Light

Light

Mode

Warm

Warm

HeatHeat

Mode

Blower

Cool

Warm

Warm

Cool

HeatHeat

Jets 1

Jets 2

Blower

Light

Light

Jets 1

Jets 2

Note regarding EL and GL systems: Mach 3 EL and GL systems function
identically, but conform to different International requirements. This
user guide will refer to EL systems for the sake of simplicity, but the
information given applies to both EL and GL products.

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EL/GL SERIES (Mach 3) CONTROL WITH ML551/ML554 PANEL

The ML551 and ML554 panels can be used with the
EL8000, EL5000, EL2000 and EL1000 systems. This user
guide lists all features that are available. Your spa may
not respond as described in this document as specific
operation varies by system and equipment used. If your
spa is not fully equipped, the panel buttons on your
spa control may not be laid out as shown. Functions
not accessible by this panel may be accessible by a
larger panel such as the ML900. Example: The ML551
and ML554 panels can be used with all EL8000 systems
equipped with three pumps, but pump 3 cannot be
controlled with this panel unless the system does not
have a blower and an additional Jets button is added to
the panel in its place. In other cases, pump 3 can be
controlled with an optional auxiliary panel.

Table of Contents

EL/GL SERIES (Mach 3) CONTROL ..... 1

Initial Start-up ..................... 1

Temp Set ........................ 2

Cool/Warm ....................... 2

Mode . ........................... 2

Standby Mode ..................... 2

Jets 1 ........................... 2

Jets 2 ........................... 2

Blower .......................... 2

Light ............................ 2

Preset Filter Cycles ................. 3

Freeze Protection .................. 3

Locking Features ................... 3

The pump responsible for heating and filtration (pump 1
low on non-circ systems, or the circ pump on circ
systems) will be referred to simply as the pump.

Timeouts refer to a preset length of time that a
function is programmed to operate before shutting off
automatically. Certain conditions (filters or freeze) can
cause a function to operate longer, while faults can
cause a function to operate for a shorter length of time.
The system keeps track of timeouts regardless of other
conditions occurring.

In multi-button sequences, if buttons are pressed too
quickly in sequence, they may not register.

Clean-up Cycle .................... 3

Circ Pump ........................ 4

Ozone ........................... 4

Displaying Information About Your Spa . . 4

User Preferences ................... 4

Editing User Preferences ............. 4

GFCI Protection .................... 5

GFCI Trip Test Procedure ............ 5

Diagnostic Messages .............. 6-7

Periodic Reminder Messages .......... 8

Optional Auxiliary Panels ............ 9

Basic Installation Guidelines ......... 10

CSA Compliance . . . . . . . . . . . . . . . . . . 10

Initial Start-up

When your spa is first actuated, it will go into Priming
mode (after displaying some configuration information).

Please see the M-7 Installation Instruction Manual for
complete instructions on Power-up and Pump Priming.

The Priming mode will last for up to 4 minutes and
then the spa will begin to heat and maintain the water
temperature in the Standard mode. You can exit Priming
mode early by pressing “Cool” or “Warm.”

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Temp Se t (80°F - 104°F / 26.0°C - 40.0°C)

The last measured temperature is constantly displayed
on the LCD. Your spa’s set temperature range may
vary from range shown above depending on your
manufacturer’s settings.

Note that the last measured spa temperature displayed is
current only when the pump has been running for at least
1 minute.

Cool/Warm

Press the “Cool” or “Warm” button once to display the
set temperature. Each time either button is pressed again,
the set temperature will increase or decrease depending
on which button is pressed. After three seconds,
the LCD will automatically display the last measured
spa temperature.

Mode

This button is used to switch between Standard,
Economy, and Sleep modes. Press “Mode” to enter mode
programming, press “Cool” to cycle through to desired
mode (LCD flashes until confirmed), then press “Mode”
to confirm selection.

Standard mode maintains the desired temperature.
Note that the last measured spa temperature displayed
is current only when the pump has been running for
at least 1 minute. “
momentarily when you switch into Standard Mode.

Economy mode heats the spa to the set temperature only
during filter cycles. “ ” will appear solid when the
temperature is not current and will alternate with the
temperature when the temperature is current.

Pressing “Jets 1” while in Economy mode puts the spa
in Standard-In-Economy mode, (“
same as Standard Mode, then reverts to Economy Mode
automatically after 1 hour. During this time, pressing
“Cool” or “Warm” followed by “Light” will revert the
mode to Economy immediately.

Sleep mode heats the spa to within 20°F (11°C) of the set
temperature only during filter cycles. “
on the display until mode is changed.

” will appear on the display

”) which operates the

” will appear

Standby Mode

Pressing “Cool” or “Warm” followed by “Blower”
or “Jets 2” or “Aux” will turn off all spa functions
temporarily. This is helpful when changing a filter.
Pressing any button exits Standby mode. On some
systems the “Jets 1” button will control the pump in
Standby Mode (“Drain Mode”). In this case, press any
other button to exit. System will revert to previous mode
after 1 hour.

Jets 1

Press the “Jets 1” button once to turn pump 1 on or off,
and to shift between low and high speeds if equipped.
If left running, the pump will turn off after a timeout
period. The pump 1 low speed timeout on some systems
may be as long as 4 hours.

On non-circ systems, the low speed of pump 1 runs
when the blower or any other pump is on. It may also
activate for at least 1 minute every 30 minutes to detect
the spa temperature (polling) and then to heat to the
set temperature if needed, depending upon mode.
When the low speed turns on automatically, it cannot
be deactivated from the panel; however, the high speed
may be started.

Jets 2

(optional on some systems)

Press the “Jets 2” button once to turn pump 2 on or
off, and to shift between low and high speeds if it is
a two-speed pump. If left running, the pump will turn
off after a timeout period.

Blower

1-speed operation: on/off;
2-speed operation: med/hi/off; or
3-speed operation: lo/med/hi/off.
If left on, the blower will automatically turn off after a
timeout period.

Note: If your system does not have a “Blower” button, and
is labeled as ”Jets 3” instead, please see page 9 “Jets 3”.

Light

Some systems are equipped with both a spa light and a
fiber optic light; however, only one can be accessed by this
panel. (Larger panels may be purchased so that both the
spa light and fiber optic light can be utilized.) Depending
upon how your spa is equipped and configured, the
“Light” button will operate in one of three ways:

1) Press the “Light” button to turn the spa light on and
off, and to shift between dim and bright settings if your
light is dimmable.

2) If a fiber-optic light with wheel is installed, press the
“Light” button once to start the light and wheel, press
it again to stop the wheel, and then again to turn the
light off.

3) If a fiber-optic light without a separate wheel stop is
installed, press the “Light” button to turn it on and off.

Again, both a spa light and a fiber optic light may be
used simultaneously on the EL8000 and EL5000 systems
with a different panel.

If any light is left on, it will automatically turn off after a
factory programmed time period.

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