Features, Unpacking the Aquastar Heater | Bosch Appliances 125HX NG

Principle of Operation:

When a hot water faucet is opened, the water flow through the heater causes the gas valve to open. At the same time the hydro-generator activates the electronics which sends a spark to the pilot. The flame sensor confirms the pilot has been lighted and allows the first two burners to come on. The flame sensor confirms correct activation and all burners come on. The pilot goes off. 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 water faucet is an ignition key to activate the water heater, giving you control over your hot water energy use. Every time you turn off your hot water faucet, the energy consumption of your hot water returns to zero.

FEATURES

-Electronic Pilot Ignition driven by hydro-generator

-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 flame sensor 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 diverter.

-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.

-On/Off Switch to activate system.

-Red LED indicator flashes with low water pressure.

-Green LED indicator main burner operation.

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

AquaStar 125HX LP and 125HX NG Specifications

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

Water Connection ½” Thread fitting NPT

H x W x D 29 3/4” x 18 1/4” x 8 3/4"

Vent 5”

CATEGORY I GAS APPLIANCE

Gas Connection 1/2” NPT thread

Min. Water Pressure 18 Psi at 4 GPM

Max. Water Pressure 150 Psi

Shipping Weight 43 LB

Net Weight 40 LB

1.8GPM at 90° rise

3.7GPM at 45° rise

Min. Water Flow 1/2 gal/min

LP GAS Supply Pressure

(before Aquastar regulator) min. 11” W.C. 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 7.

UNPACKING THE AQUASTAR HEATER

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, a personal letter, a warranty statement 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.

2	6 720 606 804 (02.10)

125HX NG specifications

Bosch Appliances has long been synonymous with innovation and quality, and their 125HX NG model is no exception. Designed for home cooks and culinary enthusiasts alike, the Bosch 125HX NG is a natural gas cooktop that combines state-of-the-art features with unmatched performance.

One of the standout features of the Bosch 125HX NG is its five powerful burners, which offer flexibility for various cooking techniques. These burners include a high-heat burner perfect for searing meats and achieving high-temperature cooking, along with a simmer burner designed for those delicate sauces and slow cooking tasks. The configuration of the burners allows for multiple pots and pans to be used simultaneously, maximizing efficiency and convenience in the kitchen.

The surface of the cooktop is constructed from premium stainless steel, offering not only a sleek aesthetic but also durability that withstands the rigors of daily cooking. The seamless design facilitates easy cleaning, ensuring that spills and stains can be wiped away with minimal effort.

Technology plays a key role in the Bosch 125HX NG model, featuring precise temperature control and rapid ignition systems. The automatic re-ignition feature enhances safety, ensuring that the flame is reignited if it goes out unexpectedly, providing peace of mind to users while cooking.

Another notable characteristic is the cooktop’s continuous grates, which provide stability for pots and pans, allowing for effortless sliding between burners without the risk of spills. These heavy-duty grates contribute to the overall robustness of the cooktop, reinforcing Bosch’s commitment to functional design.

In terms of installation, the Bosch 125HX NG is compatible with various kitchen layouts, making it a versatile choice for both new builds and remodels. The model is also designed with energy efficiency in mind, helping homeowners to save on gas consumption while enjoying consistent cooking results.

Overall, the Bosch Appliances 125HX NG is a sophisticated and reliable natural gas cooktop that caters to the needs of modern cooking. With its array of features, advanced technologies, and high-quality materials, it's a perfect addition to any kitchen, appealing to both amateur cooks and seasoned chefs. Investing in a Bosch 125HX NG means enjoying durability, functionality, and style in one exceptional cooking appliance.