Balboa Water Group 500SZ-Series Operation Manual

Warm

Cool

Mode

Jets

Blower

Light

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

The last measured water temperature is constantly displayed.

The water temperature displayed is current only when the 

pump has been running for at least 2 minutes.

To display the set temperature, press “Warm” or “Cool” once. 

To change the set temperature, press a temperature button 

again before the display stops flashing. After three seconds, 

the display will stop flashing and begin to display the current 

spa temperature.

Jets 1

Press “Jets 1” to turn pump 1 on or off, and to shift between low 

and high speeds (if equipped). The low-speed will turn off after 

4 hours. High-speed will turn off after 15 minutes. Low-speed 

may run automatically at times, during which it cannot be 

deactivated from the panel, but high-speed may be operated.

Jets 2/Jets 3/Blower (If equipped)

Press the corresponding button once to turn the device on or 

off. The device will turn off after 15 minutes. Pump 2 may be 

two-speed on some systems.

Light

Press “Light” to operate the spa light. Turns off after 4 hours.

Initial Start-up

Your spa will enter Priming Mode (

) when it is energized. 

During Priming Mode, press “Jets” button(s) repeatedly and 

be sure all pumps are free of air. Priming Mode lasts for less 

than 5 minutes. Press “Warm” or “Cool” to exit. After Priming 

Mode, the spa will run in Standard Mode (see Mode section).

Button shapes and labels may vary.

Balboa 500SZ-Series Operation Guide

This document covers VS and GS systems 500SZ through 520SZ with Balboa Panels VL600S, VL700S, VL701S, or VL702S.

 Mode

Mode is changed by pressing “Warm” or “Cool,” then 

pressing “Mode.”

Standard Mode maintains set temperature. 

 will be displayed 

momentarily when you switch into Standard Mode.

Economy Mode heats the spa to the set temperature only during 

filter cycles. 

 will display when water temp is not current, and 

will alternate with water temp when the pump is running.

Sleep Mode heats the spa to within 20°F/10°C of the set 

temperature only during filter cycles. 

 will display when water 

temp is not current, and will alternate with water temp when the 

pump is running. 

Preset Filter Cycles

The first preset filter cycle begins 6 minutes after the spa is 

energized. The second preset filter cycle begins 12 hours later. 

Filter duration is programmable for 2, 4, 6, or 8 hours or for 

continuous filtration (indicated by 

). The default filter time is 

2 hours for non-circ systems and 4 hours for circ systems.

To program, press “Warm” or “Cool,” then “Jets 1.” Press “Warm”

or “Cool” to adjust. Press “Jets 1” to exit programming.

For non-circ systems, low-speed pump 1 and the ozone generator 

(if installed) run during filtration.

For 24 hour circulation systems, the circ pump and the ozone 

generator (if installed) run 24 hours. In hot environments, the 

circ pump may turn off for 30 minute periods, except during 

filter cycles. 

For non-24 hour circulation systems, the circ pump and ozone 

generator (if installed) run during filtration (and may also run 

automatically at other times).

At the beginning of each filter cycle all other equipment will 

run briefly to purge the plumbing.

The pump responsible for heating and filtration (pump 1 low-speed 

on non-circ system, or the circ pump on circ systems) will be 

referred to simply as the pump.

In multi-button sequences, if the buttons are pressed too quickly in 

sequence, they may not register.