Combustion AIR Requirements

7.Correct gas pressure is critical for the optimum operation of this heater (see specifications on page 2). Gas piping must be sized to provide the required pressure at the maximum output of the heater, while all the other gas appliances are in operation. Check with your local gas supplier, and see the section on connecting the gas supply.

8.Should overheating occur or the gas supply fail to shut off, turn off the gas supply at the manual gas shut off valve on the gas line.

9.Do not use this appliance if any part has been underwater. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been underwater.

WARNING: The water in this water heater is cold and always remains cold except for the times that hot water is being used DO NOT INSTALL IN AN AREA

WHERE IT COULD FREEZE.

This heater is neither designed for nor approved for outside installation.

Drain the heater entirely if freezing temperatures are anticipated in area where heater is installed by disconnecting both the inlet and outlet elbow connections at the rear of heater. Additionally remove the drain plug under the water valve. See Fig 0.

PROPER LOCATION FOR INSTALLING YOUR HEATER

Carefully select the location of your new heater. For your safety and for proper heater operation, you must provide an abundant supply of combustion air and a proper venting installation.

The heater may still operate even when improperly vented. It will, however, be less efficient and could eventually damage the heater. It could even result in human sickness or death due to oxygen deprivation and carbon monoxide poisoning. Follow the guidelines below:

1.Place your heater as close to a vent or chimney as possible.

2.National building codes require that you do not install this appliance in bathrooms, bedrooms, unvented closet or any occupied rooms normally kept closed.

3.Simultaneous operation of other appliances such as exhaust fans, ventilation systems clothes dryers, fireplaces or wood stoves could create a vacuum effect in your home which could cause dangerous combustion by-products to spill back into your home rather than venting to the outside through the flue. Confirm that your Aquastar is venting properly when all these other appliances are running. See section on venting.

Do not obstruct the flow of combustion and ventilation air to the appliance. If installed near a clothes dryer it is very important that the dryer be properly vented. Failure to properly vent a dryer could result in a gradual accumulation of lint on the water heater fin coils and burners, leading to a dangerous condition of vent blockage and poor unsafe combustion.

4.Your hot water lines should be kept short to save energy. It is always best to have hot water lines insulated.

This product is not approved for manufactured homes (mobile home), recreational vehicles (RV) or boats. Reference ANSI Z21.10.3.

This product is neither designed or approved for outside installations.

Fig. 0 - Water heater drain plug

WARNING: Flammable materials, gasoline, pressurized containers, or any other items or articles that are potentially fire hazards must NOT be placed on or adjacent to the heater. The appliance area must be kept free of all combustible materials, gasoline and other flammable vapors and liquids.

The AquaStar water heater holds cold water in its copper heat exchanger and brass water valve when not in use. Because of this, any cold air that comes in through the unit’s vent pipe is capable of freezing these components. This Installation Manual specifies the minimum vertical vent pipe and the amount of combustion air required for this unit. The vent pipe must not be restricted and its 6 foot minimum height (provided there are no elbows) must terminate 2 feet above any obstruction within a 10 foot radius.

When all requirements are followed, the unit will operate properly and safely. However, there may still be a risk of freezing due to negative draft if all the combustion appliances in the area are not being supplied with a sufficient amount of make-up air. A wood stove or furnace can rob the make- up air in the AquaStar’s vent pipe, leaving the cold infiltrating air capable of freezing the cold water in the AquaStar heat exchanger. More make up air is the solution. Follow the instructions on venting and checking adequacy of make up air. A HVAC specialist should be used to design solutions for providing more make-up air if necessary.

Observe the following instructions concerning combustion air.

Appliances located in unconfined spaces:

a)An unconfined space is one whose volume is greater than 50 cubic feet per 1000 Btu per hour of the combined rating of all appliances installed in the space. That would be 5850 cubic feet for the AquaStar 125BL alone.

b)In unconfined spaces in buildings of conventional frame, masonry, or metal construction, infiltration is normally adequate to provide air for combustion, ventilation, and

125B NGL, 125B LPL specifications

Bosch Appliances has established itself as a leader in home innovation, offering cutting-edge products designed to enhance everyday living. Among their notable offerings are the Bosch 125B LPL and 125B NGL models, both engineered to meet the needs of modern households.

The Bosch 125B LPL features a sleek design, making it a stylish addition to any kitchen. It operates with a low noise level, allowing for an unobtrusive cooking experience. One of its standout features is the powerful performance it delivers, thanks to its innovative cooking technologies. The induction cooking system ensures rapid heating and precise temperature control, allowing users to cook their meals to perfection. The residual heat indicator is another excellent feature, ensuring safety by alerting users to hot surfaces.

On the other hand, the Bosch 125B NGL focuses on providing versatility and convenience in the kitchen. This model is equipped with advanced gas cooking technology that offers instant heat and adjustable flame control. This ensures that home chefs can simmer, sear, and sauté with precision. The integrated safety features, including a flame failure device, provide peace of mind while cooking.

Both models embody Bosch’s commitment to energy efficiency. They are designed to minimize energy consumption while maximizing performance, which is a significant advantage for environmentally conscious consumers. Additionally, the interface on both appliances is user-friendly, featuring intuitive controls that make it easy to navigate settings and cooking modes.

Bosch has also incorporated smart technology into these models, allowing users to connect their appliances with home networks for added convenience. This can include features such as remote monitoring and control, enabling homeowners to manage their cooking seamlessly.

In terms of durability, both the 125B LPL and the 125B NGL are built with high-quality materials that ensure longevity and reliability. Bosch’s reputation for fine craftsmanship is evident in every aspect, from their robust construction to the aesthetic details.

In conclusion, the Bosch Appliances 125B LPL and 125B NGL models represent the pinnacle of modern kitchen technology. With their powerful performance, energy efficiency, and user-centric features, they are perfect for those who appreciate gourmet cooking as well as everyday meal preparation. Bosch continues to redefine the culinary experience, making cooking not just a task, but an enjoyable journey.