toward you and lift up and out. THE FOLLOWING OPERATIONS SHOULD BE PERFORMED BY A QUALIFIED SERVICE PERSON:

Vent System: Should be checked annually. Clean and repair as needed.

Water Valve (Part # 8707002478): The water valve on this heater should be serviced periodically. Lubricate component #25 on page 14 with a small amount of silicon, faucet or lithium grease every two years to keep its o rings fresh and pushrod sliding smoothly. Every 3-5 years replace components #25 and #27 on page 14. The frequency will depend on the mineral content of the water and conditions of use or whenever signs of corrosion appear at the gas and water valve joint. Periodically check that the water inlet filter (#32 on page 14) is clean as well.

Pilot Flame: The pilot flame should burn with a clean sharp blue flame and should resemble the diagram in Fig 8. If the flame is yellow, or if the pilot knob has to remain depressed for a long time in order to keep the pilot lighted, the pilot burner and or the pilot burner orifice may need to be cleaned (NG), the orifice may need to be replaced(LP), and or the air screen may need cleaning. The pilot flame should envelop approximately 10 mm (3/8") of the tip of the thermocouple. If it is too small, the pilot burner must be cleaned. To obtain a spark, the position of the Piezo igniter electrode should be approximately 3 mm (1/8") from the pilot burner tip.

3mm

Correct gap between pilot burner tip and piezo electrode tip

Piezo Electrode

Air screen filter

10mm 3/8”

 

Thermocouple

 

Piezo

Fig. 8 - Characteristic Pilot Flame

Electrode

 

To clean the pilot burner and/ or the pilot orifice : Turn off the gas at the unit. Remove the cover of the heater. To do so, remove incandescent particle tray and unscrew the central screw located at the bottom of the front cover. Pull main cover out toward you and lift up and out. Pull the air screen off, wash it and blow any lint off (See Fig 9). The pilot orifices should also be cleaned or replaced. Do not enlarge the orifice. Do not use any wire or sharp object to clean orifices. Natural gas orifices are large enough that you can usually clean them by blowing through them. LP orifices, on the other hand, are too small to clean and should be replaced. See #3 in Trouble Shooting Section.

To access the pilot orifice, remove 2 screws holding pilot assembly in place. Then loosen compression fittings to expose pilot orifice.

AIR SCREEN

PILOTORIFICE

Fig. 9 - Pilot burner with air screen/ pilot orifice

Main Burner Flames: The main burner flames should be blue, with a more intense blue cone in the center core. Yellow flames could be a sign of wrong size gas orifices or dirty burners, or a blockage on the heat exchangers fins. If some burners have yellow flames while others have good flames, it is likely that dust, lint or spider webs have partially clogged the burner venturis. To clean the burners contact a gas service person

Mineral Scale Build-up: The AquaStars heater, when operated at lower temperatures settings, do not accumulate mineral build-up. If however, the heater is used at the higher temperature settings and the water has a high mineral content, periodic descaling may be necessary. The heating coils should be flushed with a descaling solution. Consult your dealer or Controlled Energy for instructions.

TROUBLE SHOOTING (see maintenance table)

Introduction

The AquaStar 125 BL burners are activated by a water flow valve. Numerous water related problems can cause this water valve to malfunction such as: Insufficient water flow volume to activate the burners at its minimum flow requirement; Dirt in the water flow valve causing it to malfunction; Sediment build-up in faucet aerators, or shower heads; Uneven pressures between cold and hot. (with single lever faucets) Plumbing cross overs. These water flow related problems can cause the heater to deliver less than its full output, or to fail to ignite or to shut down completely. Problems are stated in upper case, bold face. Most common causes for the problems follow in order of likelihood. The suggested solutions require that the cover be taken off. To do this, remove incandescent particle tray and unscrew the central screw located at the bottom of the front cover. Pull main cover out toward you and lift up and out.

PILOT LIGHT WILL NOT LIGHT

1. No gas to the AquaStar

A.Gas cock on gas line may not be open.

B.Gas valve button has not been pushed in on “PILOT” position.

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AquaStar 125B NGL, 125B LPL specifications Introduction, Pilot Light will not Light, No gas to the AquaStar
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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.
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