Bosch Appliances 125B NG, 125B LP specifications Features, Unpacking the Aquastar Heater

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This well engineered, gas water heater has all the fea- tures a water heater should have:

It operates on the principle of heating water instantaneously “on demand”. When a hot water faucet is opened, cold water flows through the coils of the heat exchanger in the Aquastar. This same flow opens the gas valve, and the burners are ignited by the pilot flame. The heat exchanger coils absorb the heat generated by the burners and transfer heat to the water. When the hot water faucet is shut off, the gas valve automatically closes and the burners turn off. Your hot wa- ter faucet is an ignition key to turn on the water heater, giving you control over your hot water energy use. Each time you turn off your hot water faucet, you also shut off the water heater.

FEATURES

-High Quality Materials for Long Working Life.

-Copper heating coils for endless supply of hot water.

-Burner output proportional to hot water flow demand for maximum energy efficiency.

-Safety thermocouple at pilot burner.

-Automatic overheating protection shut-off sensor.

-Flue gas safety device.

-Stainless steel burners with stabilized blue flame.

-Built-in corrosion resistant draft inducer.

-Compact space saver: mounts on a wall with two hooks.

-Easily removable one-piece cover.

-Easy one person installation.

-Adjustable water flow restrictor to ensure that water flow demand will not exceed the heating capacity of the heater.

-Easy pilot flame lighting with push button piezo ignition.

BOSCH is constantly improving our products, therefore specifications are subject to change without prior notice.

UNPACKING THE AQUASTAR HEATER

AquaStar 125B LP and 125B NG Specifications

Gas Input max.: 117,000 Btu/hr min.: 28,000 Btu/hr

Water Connection 1/2” Thread fitting NPT

H x W x D 29 3/4” x 18 1/4” x 8 3/4"

 

Vent 5”

 

Gas Connection 1/2” NPT thread

 

Min. Water Pressure 18 Psi at 4 GPM

 

Max. Water Pressure 150 Psi

 

Shipping Weight 42 LB

 

Net Weight 39 LB

 

1.8 GPM at 90° rise

 

3.7 GPM at 45° rise

 

Min. Water Flow 1/2 gal/min

 

LP GAS Supply Pressure

min. 11” W.C.

(before Aquastar regulator)

max.14” W.C.*

Required LP GAS pressure at inlet

 

tap while Aquastar is operating:

10.5” W.C.

LP GAS Burner Manifold pressure while

 

Aquastar is operating at maximum input:

9.0” W.C.

Natural Gas Supply Pressure

min.: 7” W.C.

(before Aquastar regulator)

max.: 14”W.C.*

Required Natural Gas Pressure at

 

inlet tap while Aquastar is operating:

5.7”W.C.

Natural Gas Burner Manifold pressure while

Aquastar is operating at maximum input:

4.2” W.C.

*Inlet gas pressure before Aquastar regulator must not exceed this value. Pressure may need to be adjusted for high altitudes, see page 10.

This heater is packed securely. The box includes one water connection fitting, a control knob, a gas pressure regulator, a pressure relief valve, an incandescent particle tray, two hooks for hanging the heater, this manual and a warranty registration card. Do not lose this manual, as there is a charge for replacement. Please complete and return the enclosed warranty registration card.

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Contents What to do if YOU Smell GAS For Your SafetyTable of Contents Features Unpacking the Aquastar HeaterAquastar Model 125B Front View Side ViewProper Location for Installing Your Heater General Rules to Follow For Safe OperationCombustion AIR Requirements ClearancesMounting Installation Mounting the HeaterVenting Establish a ONE Foot Rise Before ANY ElbowsMasonry Chimneys Figure CVent Adaptor for High Altitude Installations 6 Adaptor Used on High AltitudeGAS Line Sizing Maximum Inlet GAS Flow Pressure SettingGAS Connections GAS Line Sizing For Natural GAS For LP GASOperating Instructions For Your Safety Read Before Lighting the PilotWater Connections Setting the Water Temperature To Turn OFF GAS to ApplianceAIR Screen Pilot Orifice Pilot Light will not Light Pilot Lights but Flame Goes OUT When Button is ReleasedBurners do Notignite When HOT Water is Turned on Water is TOO HOT Water is not HOT EnoughHOT Water Temperature Fluctuates / Unit Deactivated Unbalanced pressure in waterlines720 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.