Electrical connections

4Electrical connections

4.1Electrical power supply

Warning: For safety reasons, disconnect the power supply cord to the heater before any service or testing is performed.

Warning: This heater must be electrically grounded in accordance with the most recent edition of the National Electrical Code. NFPA 70. In Canada, all electrical wiring to the heater should be in accordance with local codes and the Canadian Electrical Code, CSA C22.1 Part 1. Do not rely on the gas or water piping to ground the metal parts of the heater.

The GWH 2400 ES requires an electrical power supply from a 120VAC / 60Hz circuit (with a dedicated outlet) and must be properly grounded.

The heater is wired as shown in the wiring diagram (chapter 9, Fig. 58).

Fig. 33 Connecting power supply cord

1Power cord length: 3ft.

Note: Outlet appliance is plugged in to should be clear from possible water damage.

4.2Position of the fuses in control unit

To check fuses, proceed as follows:

BRemove the front cover, see Fig. 4, page 6.

BRemove the three screws on front of the control unit.

Fig. 34

BPull control unit free to access and remove the six screws from the back cover of the control unit, see Fig. 35, pos. 2.

BCheck the fuses in the printed circuit board, see Fig. 35, pos. 3.

1

2

3

6720608158-78.1AL

Fig. 35 Location of fuses

BAfter verifying the fuses mount all parts in reverse order.

6 720 608 782

23

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Bosch Appliances GWH 2400 ES NG Electrical connections, Electrical power supply, Position of the fuses in control unit
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GWH 2400 ES NG, GWH 2400 ES LP specifications

Bosch Appliances has established a reputation for delivering high-quality and innovative home solutions, and the Bosch GWH 2400 ES LP and GWH 2400 ES NG are no exceptions. These high-efficiency water heaters are designed to provide on-demand hot water, ensuring comfort and convenience for your home.

One of the standout features of the Bosch GWH 2400 ES LP (Liquid Propane) and GWH 2400 ES NG (Natural Gas) models is their compact, space-saving design. These tankless water heaters are engineered to fit in smaller spaces, making them an ideal choice for homes with limited installation areas. Despite their compact size, both models provides a powerful performance that meets the hot water needs for multiple fixtures simultaneously, such as showers, faucets, and washing machines.

These water heaters are equipped with advanced technology that enables precise temperature control. The Bosch GWH 2400 ES series utilizes a microprocessor-based control system that allows for consistent water heating, ensuring the water temperature remains stable even during high demand. The modulating gas valve further optimizes energy consumption, adjusting the flame intensity to meet the exact heating needs, thus enhancing efficiency.

In terms of safety, both the GWH 2400 ES LP and NG come with multiple safety features. These include a flame failure safeguard, overheating protection, and a built-in freeze protection system. Such features ensure both peace of mind and the longevity of the unit.

Installation is straightforward with these models, as they can be vented using standard venting materials, saving time and costs. Additionally, the units boast a low NOx emissions rating, making them environmentally friendly choices that help homeowners reduce their carbon footprint.

Maintenance is minimal, thanks to the corrosion-resistant heat exchanger which ensures durability and long service life under normal operating conditions. This factor, combined with Bosch’s renowned commitment to quality, makes these models a reliable investment for any household.

Whether you opt for the GWH 2400 ES LP or the GWH 2400 ES NG, you will experience the benefits of a powerful, efficient, and safe water heating solution tailored to your specific household needs. Bosch has truly combined technology, sustainability, and user comfort in these innovative models, solidifying their place as leaders in the home appliance market.
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