WALL STUDS

13 ¼”

SUPPORT BOARD

1” X 4”

SPACE BOARD

Fig. 1 - Mounting the Heater

The incandescent particle tray (shipped loose in the carton with the water heater) must be attached at the bottom of the water heater front cover at the time of installation. Use the screws provided. See figure 2

SCREWS

INCANDESCENT PARTICLE TRAY

Fig. 2 - Incandescent Particle Tray Illustration

VENTING

Vent pipe connection. WARNING: Do not reduce the vent pipe size.

This appliance must be vented to the outside following all local ordinances and specifications for installing a gas appliance vent or chimney. The venting system must be designed and constructed so as to develop a positive flow adequate to remove flue gasses to the outdoors. Minimum vent size must be 5". Minimum vent height must be 6 feet, provided there are no elbows. Termination of the vent must be 2 feet above any obstruction within a 10 foot radius of the vent pipe. Consult your gas utility or National Gas Fuel Code if vent will have elbows or share venting with another appliance. The vent connector should have as much vertical rise as possible (minimum 12”) before any horizontal run.

Optional powervent available in order to sidewall vent. Contact your local dealer. The appliance must be located as close as practicable to a chimney or vent. The vent pipe sections must be secured to each other with sheet metal screws. Keep in mind the minimum clearance from the top of your heater. Remember also that single wall vent pipe connectors require a 6 inch clearance from combustibles. National Fuel Gas Code specifies double wall — Type “B”

—vent pipe be used in cold climates and for gas vents running through attics. We consider double wall vent pipe preferable in all circumstances. Any vent section greater than 45 degrees from vertical is considered horizontal.

Horizontal sections of vent connectors must slope upwards

at least 1/4 inch for every foot of its horizontal length. Keep the horizontal section short and avoid too many elbows.

To check the draft:

Close all doors and windows to the outside.

Turn on all appliances that force air out of the building. These include all exhaust/ventilation fans, furnaces, clothes dryers, wood burning stoves, etc.

Open all doors between the AquaStar and these other appliances.

Run the unit for at least 10 minutes. Then hold an ordinary mirror at the side above the front shell. Any flue gases backdrafting will cause the mirror to fog. This is a serious health hazard and must be corrected. Poor venting can result in soot building up inside the heater, overheating of the heater and freezing of the heat exchanger in a freezing environment.

The mirror will remain clear with a properly functioning draft.

WARNING

Note: The burners of an instantaneous “on demand” water heater such as the AquaStar are only on at the time that hot water is actually being used, the vent pipe is therefore cold except for the short durations when hot water is being used, it is therefore very important that the venting and air supply be adequate to provide a good positive draft as soon as the burners turn on. See venting guide on back page.

TheAquaStar 125HX instantaneous water heaters have built- in draft diverters and are designed for indoor installation only. The draft diverter outlet must be connected to a clear, unobstructed vent of the same size, or larger.

In Canada, CAN/CGA-B149 Installation Code for detailed requirements

In U.S.A., ANSI Z223.1 - NFPA 54, national Fuel Gas Code for detailed requirements.

The vent connection for the AquaStar 125HX is 5 inches. However, in CANADA, for installations at high altitude (2000- 4500 feet above sea level) a six inch vent is required. A 5" by 6" vent adaptor must be affixed to the vent collar of the AquaStar with at least two screws. See figure 3.

WARNING: Failure TO INCREASE THE VENT SIZE TO SIX INCHES AND/or assure that the manifold pressure is set to proper value listed for applications at high altitudes will cause unsafe venting, asphyxiation, and will void CSA Certification.

5” X 6” ADAPTOR

USED ON HIGH ALTITUDE

Fig. 3 - Vent Adaptor for High Altitude Canadian

Installations

6

6 720 606 562 (02.03)

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Bosch Appliances 125HX LP specifications Venting, To check the draft
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125HX LP specifications

The Bosch Appliances 125HX LP is an outstanding addition to any modern kitchen, exemplifying innovation and efficiency in kitchen technology. Renowned for their commitment to quality and performance, Bosch has crafted this model to meet the needs of both amateur and professional chefs.

One of the standout features of the 125HX LP is its powerful cooking capabilities. The model is equipped with a high-efficiency burner that provides intense heat for rapid cooking and precise temperature control. This is particularly beneficial when searing meats or preparing gourmet dishes, allowing users to achieve professional-grade results at home.

Another significant characteristic of the 125HX LP is its sleek and durable design. Constructed with premium materials, this appliance not only enhances the aesthetic appeal of your kitchen but also promises longevity. The stainless steel finish is not only attractive but also easy to clean, ensuring that the appliance maintains its polished look over time.

In terms of user-friendly technology, Bosch has integrated advanced features such as an intuitive control panel. This panel provides clear visibility and ease of access to various cooking settings while offering precise temperature adjustments. The 125HX LP also includes an automatic ignition system, which ensures that lighting the burners is both quick and safe, reducing the risk of accidents.

Safety is a major consideration in the design of the 125HX LP. The appliance features flame failure detection which automatically shuts off the gas supply if the flame goes out, providing peace of mind during use. Additionally, the cooking surface is designed to minimize the risk of burns, making it ideal for families.

The Bosch Appliances 125HX LP stands out with its commitment to energy efficiency. The model is designed to reduce energy consumption without compromising performance, making it an eco-friendly choice for the environmentally conscious consumer.

In summary, the Bosch Appliances 125HX LP combines power, design, and safety features to deliver a superior cooking experience. With its advanced technology and user-oriented features, this model is perfect for those who prioritize functionality and style in their kitchen appliances. Whether a casual cook or a culinary enthusiast, the Bosch 125HX LP is sure to meet and exceed expectations and stand the test of time in any kitchen environment.
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