EL/GL Series - Mach 3 ML551 User Guide Light Mode Warm Heat Electronic Spa Controls Jets 1 Jets 2 Light Jets 3 / Blower Standard 7 Digital System Mode Cool Warm Heat Electronic Spa Controls Jets 1 Jets 2 Jets 3 / Blower Standard 7 Digital System Cool Note regarding EL and GL systems: Mach 3 EL and GL systems function identically, but conform to different International requirements.
EL/GL SERIES (Mach 3) CONTROL WITH ML551 PANEL The ML551 panel 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.
Temp Set (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.
Preset Filter Cycles Circ Pump (optional) On all systems, the pump and the ozone generator will run during filtration. At the start of each filter cycle, the blower will run briefly on its highest speed to purge the air channels. The lowest speed of any other pumps and the mister will also run briefly. On some circ systems, pump 1 may also run for the duration of the filter.
Displaying Information About Your Spa There are several pieces of information about your spa that can be called up from the panel, but are only needed in special cases. To access this information, press “Cool” or “Warm” then “Jets 1”, then “Light”. (Each press must be within 3 seconds of the previous press.) Then press “Cool” until ” on the display.
Note: The GFCI section does not apply on EL systems used outside the United States. This GFCI section does not apply to GL Systems. GFCI Protection GFCI Trip Test Procedure Your spa may be equipped with a GFCI Protection feature. If your spa does have this feature enabled, the GFCI Trip Test must occur to allow proper spa function. The installer can cause the GFCI Trip Test to occur sooner by initiating it with the following button sequence.
Diagnostic Messages Message Meaning Action Required No message on display. Power has been cut off to the spa. The control panel will be disabled until power returns. Time of day will be preserved for 30 days with a battery back-up on EL8000 and EL5000 systems. EL1000 and some EL2000 systems reset the time of day on each power-up. Spa settings are preserved on all systems. “Overheat” - The spa has shut down.1 On some systems, an alarm may sound. One of the sensors has detected 118°F (approximately 47.
Diagnostic Messages (continued) Message Meaning Action Required Temperature unknown. After the pump has been running for 1 minute, the temperature will be displayed. Temperature not current in Economy or Sleep mode. In Economy or Sleep mode, the pump may be off for hours outside a filter. If you wish to see the current spa temperature, either switch to Standard mode or turn Jets 1 on for at least 1 minute. Standby Mode has been activated by pressing a button combination on the user panel.
Periodic Reminder Messages (Press the “Mode” button to reset a displayed reminder.*) Message ** Frequency *** Action Required Every 7 days Test and adjust pH chemical levels per manufacturer’s instructions. Every 7 days Test and adjust sanitizer chemical levels per manufacturer’s instructions. Every 30 days Remove, clean, and reinstall filter per manufacturer’s instructions. Every 30 days Test & reset GFCI per manufacturer’s instructions.
Optional Auxiliary Panels Note: Below is a partial list of optional auxiliary panels and their basic functions. Please contact for local dealer for a complete list of options that will work with your spa. Jets 1 Jets 2 Blower Jets 1 Jets 2 Blower Jets 1 Jets 3, Jets 4 Light Jets 2 Blower Jets 2 (optional on some systems) Jets 1 Fiber (optional on some systems) Press the “Jets 3” button once to turn pump 3 on or off, and to shift between low and high speeds if it is a two-speed pump.
Warning! Qualified technician required for service and installation. Basic Installation and Configuration Guidelines for Mach 3 EL-Series Spa Controllers. Use minimum 6AWG copper conductors only. Torque field connections between 21 and 23 in lbs. Readily accessible disconnecting means to be provided at time of installation. Permanently connected. Connect only to a circuit protected by a Class A Ground Fault Circuit Interrupter (GFCI) mounted at least 5’ (1.
