Balboa VS520DZ spa control box and heater (no topside or cords).

• 5.5 kW Heater (on 220V) / 1.4 kW (on 110V)

The Balboa VS520DZ control system can operate:

• Main Pump Circuit (2-Speed) - 110V or 220V
• Pump 2 (2-Speed) - 110V or 220V
• Pump 3 / Blower Circuit (1-Speed) - 110V or 220V
• Ozonator Circuit - 110V or 220V (Must match voltage of circulation pump circuit below. So if you do not have a small circulation pump, you have the option to set this circuit to either voltage. If you have a small circulation pump, you must use an ozonator with the same voltage as your circulation pump.)
• Light Circuit - 12 Volts
• **Circulation Pump Circuit - 110V or 220V (activation optional)

**Most spas don't have a small circulation pump, instead, the main pump runs on low speed to heat and filter the water during set filtration cycles. If you are using a small circulation pump, the flow rate must be at least 25 gallons per minute.

Compatible topside control (optional to add above): Part number: 54108

Other Balboa topsides are not compatible with this VS 520 DZ control system. If you are in doubt if your topside will work, please email us a picture of your topside control and we can verify.