Made by Balboa WaterGroup
GS501SZ Complete Control System
This system consists of a GS501SZ control box (3kW Heater), a VL701S programmable control panel.
Note on VL701S Panel - This panel has a mode button which means you can set the time and programme when the spa filters.
Used to retrofit / upgrade any 1 pump hot tub systems that also needs an air blower.
Designed to connect and manage: 1 main dual speed pump and a single speed pumps and a circulation pump if required, an air blower, ozone, light and media (TV or Radio)
The Heater tube is 15" long and connects to 2" plumbing, seals and spare unions included.
The panel is complete with cable and includes 3m sticky on the rear to fit, face dimensions are 18.7cm x 8.3cm.
Cables and Fitting
Please note the control panel comes with a cable attached but this bundle is just the control panel and control box, you may need different connections to attach your pumps and parts to this control box.
Balboa control systems now use AMP connections directly on to the board, see related products for cables and connections, you will need 1 per pump or part that connects to the board.
For fitting instructions, please see the downloadable PDF manual on the manuals tab above.
Balboa M7 Technology
This system is made of M7 Technology which is a Balboa twin sensor control system, this means you don't need to drill a hole for a temperature thermostat, their is no pressure switch or high limit sensor, the system works by sensing the difference between the two thermostats, pre heater is the current temperature post heater is the hi limit and if both sensors are the same the element is working.
The M7 systems are great for upgrades on hot tubs because their so easy to fit into a system, this also applies if your building a hot tub from new.