Bosch Intelligent Cascading Kit, 830ES, 940ES

The Bosch Intelligent Cascading Kit, part number 7709003962, is a wired inter-unit connection kit designed to link two compatible Bosch Therm tankless gas water heaters together to enable intelligent cascading operation, allowing a multi-unit installation to distribute hot water demand across the connected heaters as needed rather than relying on a single unit to serve the full load.

The 7709003962 kit provides the wired connection hardware required to establish communication between two Bosch Therm tankless gas water heater units in a cascaded system. When connected, the intelligent cascading control logic distributes the hot water demand load across the linked units, rotating the lead unit to balance operational hours and wear across the system.

A single kit connects one pair of heaters; installations requiring more than two cascaded units require one kit per additional pair connection. A full cascaded system may include up to 24 Bosch Therm tankless water heater units connected through a series of cascading kit connections.

What's Included: Bosch Intelligent Cascading Kit 7709003962 with the wired connection hardware required to link two compatible Bosch Therm 830ES or 940ES tankless gas water heater units for cascaded operation. Additional kits are required for each additional unit pair added to the cascaded system beyond the initial two-unit connection.

Installation Limits: Each 7709003962 kit connects one pair of Bosch Therm tankless gas water heater units. A minimum of two compatible heater units is required to use this kit. The maximum number of units that may be connected in a single cascaded system is 24. Both heater units connected by this kit must be of the same compatible model series — mixing incompatible model series within a cascaded connection is not supported. All heater units and cascading connections must be installed in accordance with applicable local plumbing and mechanical codes by a licensed installer.

Compatibility: The Bosch Intelligent Cascading Kit 7709003962 is compatible with the Bosch Therm 830 ES Natural Gas (7703311076), Bosch Therm 830 ES Liquid Propane (7703411074), Bosch Therm 940 ES Natural Gas (7703311075), and Bosch Therm 940 ES Liquid Propane (7703411073) tankless gas water heaters available at RuralEnergy.com. All four of these models include intelligent cascading capability as a standard feature and are designed to accept the 7709003962 kit connection.

• Wired inter-unit connection kit enables intelligent cascading operation between two compatible Bosch Therm 830 ES or 940 ES tankless gas water heaters available at RuralEnergy.com
• Intelligent cascading control logic distributes hot water demand load across connected units and rotates the lead unit to balance operational hours and wear across the cascaded system
• One kit connects one pair of heaters — installations requiring more than two cascaded units require one additional kit per unit pair connection added to the system
• Supports cascaded systems of up to 24 Bosch Therm tankless gas water heater units connected through a series of cascading kit connections for large residential or commercial applications
• Compatible with all four Bosch Therm 830 ES and 940 ES models available at RuralEnergy.com — all four models include intelligent cascading capability as a standard platform feature
• All heater units and cascading connections must be installed by a licensed installer in accordance with applicable local plumbing and mechanical codes

The Bosch Intelligent Cascading Kit 7709003962 enables wired inter-unit cascading between compatible Bosch Therm 830 ES and 940 ES tankless gas water heaters available at RuralEnergy.com, supporting scalable multi-unit hot water systems from two units up to a maximum of 24 units with intelligent load distribution and lead unit rotation across the cascaded installation.