Bosch Appliances 125B LP, 125B NG specifications Adaptor Used on High Altitude

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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.

With the control knob set fully clockwise and strong hot water flow rate, run the unit for at least 10 minutes. The 125B is equipped with a Flue Gas Sensor; it’s mounted on the right side of the draft diverter (Flue Gas Sensor #20 on page 17). If the main burners and the pilot flame shut off during this test it is because the Flue Gas Sensor has detected inadequate venting. 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 non-freezing environment when not in use, which is all a result of negative air flow. Additional combustion air and/or improved venting is necessary to correct this.

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.

The AquaStar 125B instantaneous water heaters have built- in draft diverters and are designed for indoor installation only. The draft diverter outlet must be connected to an, 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 125B is 5 inches. However, for installations at high altitude (over 2000 feet above sea level) a six inch vent is required. A 5” by 6” vent adaptor must be affixed to the flue collar of the Aquastar with at least two screws. See Fig. 4.

5” X 6” ADAPTOR

USED ON HIGH ALTITUDE

Fig. 4 - Vent Adaptor for High Altitude Installations

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.

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Contents For Your Safety Table of ContentsWhat to do if YOU Smell GAS Unpacking the Aquastar Heater FeaturesFront View Side View Aquastar Model 125BGeneral Rules to Follow For Safe Operation Proper Location for Installing Your HeaterClearances Combustion AIR RequirementsMounting the Heater Mounting InstallationEstablish a ONE Foot Rise Before ANY Elbows VentingFigure C Masonry Chimneys6 Adaptor Used on High Altitude Vent Adaptor for High Altitude InstallationsMaximum Inlet GAS Flow Pressure Setting GAS ConnectionsGAS Line Sizing For LP GAS GAS Line Sizing For Natural GASFor Your Safety Read Before Lighting the Pilot Water ConnectionsOperating Instructions To Turn OFF GAS to Appliance Setting the Water TemperatureAIR Screen Pilot Orifice Pilot Lights but Flame Goes OUT When Button is Released Burners do Notignite When HOT Water is Turned onPilot Light will not Light Water is not HOT Enough Water is TOO HOTUnbalanced pressure in waterlines HOT Water Temperature Fluctuates / Unit Deactivated720 607 Diagram of AquaStar 125 B Interior Components Diagram and Parts List Interior Components Diagram Parts List 125B Limited Warranty Flow chart of Aquastar 125 B Maintenance Table see pages 13

125B NG, 125B LP specifications

Bosch Appliances has long been a trusted name in kitchen technology, and their 125B LP and 125B NG models are no exception. These gas appliances combine advanced features with top-notch engineering, ensuring excellent performance and reliability in the kitchen. Designed for both professionals and home cooks, the 125B series caters to diverse culinary needs.

One of the main features of the Bosch 125B model is its dual fuel capability. The LP (liquefied petroleum) and NG (natural gas) options make it flexible for various installations and preferences. This versatility ensures that users can easily find the right setup for their kitchens, whether they're using propane or natural gas.

The burners in the 125B series are designed with precision in mind. Each model features high-efficiency burners that deliver a maximum output of 15,000 BTUs. This level of power enables rapid heating for boiling, frying, or searing, while the low-simmer setting allows for gentle cooking tasks such as sauces and delicate soups. The continuous cast iron grates offer both durability and stability, allowing for easy movement of pots and pans across the cooking surface.

An additional technological highlight of the Bosch 125B series is the flame failure safety device. This essential safety feature automatically cuts off the gas supply if the flame goes out, providing peace of mind for users. The inclusion of electronic ignition also enhances convenience, making it easy to start the burners with just a turn of the knob.

The sleek design of the Bosch 125B appliances blends seamlessly into any kitchen decor. With a professional stainless steel finish, they add an element of sophistication while being easy to clean and maintain. The intuitive control knobs are ergonomically designed, ensuring smooth and precise adjustments to the flame.

In terms of installation, both the 125B LP and NG models are designed for straightforward setup, making them suitable for renovation projects or new builds. Bosch Appliances also offers a range of accessories to further enhance the functionality and aesthetic of the kitchen setup.

Overall, the Bosch 125B LP and 125B NG appliances represent a perfect combination of efficiency, safety, and style. With their robust features and advanced technology, they promise to elevate the cooking experience for anyone who values quality and performance in the kitchen. Whether you're a novice home cook or a seasoned chef, these models are sure to meet and exceed your culinary expectations.
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