This well engineered, gas water heater has been specially designed to operate as a circulating water heater.

FEATURES

-High Quality Materials for Long Working Life.

-Copper heating coils for endless supply of hot water.

-Safety thermocouple at pilot burner.

-Automatic overheating protection shut-off sensor.

-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.

-Easy pilot flame lighting with push button piezo ignition.

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

AquaStar 125B LPL and 125B NGL Specifications

Gas Input max.: 117,000 Btu/hr min.: 60,000 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 8 Psi at 1.8 GPM

Min. Water Pressure 18 Psi at 3.7 GPM

Max. Water Pressure 150 Psi

 

Shipping Weight 46 LB

 

Net Weight 44 LB

 

1.8 GPM at 90° rise

 

3.7 GPM at 45° rise

 

Min. Water Flow 1.8 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

 

(before Aquastar regulator)

min.: 7” W.C.

 

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 8.

UNPACKING THE AQUASTAR HEATER

This heater is packed securely. The box includes two water connection fittings, a gas pressure regulator, a pressure relief valve, an incandescent particle tray, two hooks for hanging the heater, this manual, 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.

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AquaStar 125B LPL, 125B NGL specifications Features, Unpacking the Aquastar Heater

125B NGL, 125B LPL specifications

The AquaStar 125B LPL and 125B NGL are innovative products designed to meet the growing demands of modern aquaculture and water treatment facilities. Equipped with advanced features and technologies, these models are engineered for efficiency, performance, and sustainability, making them essential tools for aquaculture professionals and facility managers alike.

One of the standout characteristics of the AquaStar 125B series is its enhanced filtration system. Both the LPL (Low Pressure Liquid) and NGL (Natural Gas Liquid) models incorporate a high-capacity filter that effectively removes particulate matter and impurities from water. This ensures higher water quality and promotes healthier aquatic life. The filtration system is designed for easy maintenance, allowing operators to perform routine cleanings without downtime.

In addition to filtration, the AquaStar 125B series boasts a state-of-the-art aeration system. Efficient oxygenation is crucial for aquatic organisms, and these models utilize fine bubble diffusers to maximize oxygen transfer rates. This technology not only ensures that fish and other aquatic species thrive but also minimizes energy consumption, ultimately reducing operational costs.

Both models feature robust, corrosion-resistant materials, enhancing their durability in challenging environments. The casing is designed to withstand exposure to wet and humid conditions, ensuring longevity and reliability in various operational scenarios. Furthermore, the AquaStar 125B series incorporates energy-efficient motors, promoting reduced power consumption and minimizing the environmental impact.

Another innovative aspect is the intelligent monitoring system integrated into both models. The digital interface provides real-time data on water quality parameters, such as pH levels, temperature, and dissolved oxygen content. This allows for proactive management and immediate adjustments when necessary, ensuring optimal conditions for aquatic life.

Safety is also a key consideration with the AquaStar 125B series. Both models feature built-in safety protocols, including automatic shutoff mechanisms and alerts for abnormal readings, further reinforcing their reliability in managing aquatic environments.

In summary, the AquaStar 125B LPL and 125B NGL represent a leap forward in aquaculture technology, combining advanced filtration, aeration systems, and smart monitoring features. Their durable design and energy efficiency make them suitable for both commercial and non-commercial applications. These models not only improve water quality but also enhance the overall productivity of aquaculture operations while being mindful of environmental sustainability.