Installation instructions

3.5Combustion air requirements

The AquaStar water heater holds cold water in its copper heat exchanger and water valve when not in use. Because of this, any cold air that comes down through the unit's vent pipe is capable of freezing these components. This Installation Manual specifies the minimum vertical vent pipe and the amount of combustion air required for this unit. When all requirements are followed, the unit will operate properly and safely. However, there may still be a risk of freezing due to negative draft if all the combustion appliances in the area are not being supplied with a sufficient amount of make-up air. A wood stove or furnace can rob the makeup air in the AquaStar's vent pipe, leaving the cold infiltrating air capable of freezing the cold water in the AquaStar heat exchanger. More make up air is the solution. Supplying more combustion air for all combustion appliances is the solution. A HVAC specialist should be used to design solutions for providing more make-up air if necessary. Observe the following instructions concerning combustion air.

Appliances located in unconfined spaces:

a)An unconfined space is one whose volume is greater than 50 cubic feet per 1000 Btu per hour of the combined rating of all appliances installed in the space. That would be 5850 cubic feet for the AquaStar GWH 1600 P alone.

b)Installations in structures that have been tightly constructed (air infiltration rate of 0.40 ACH or less) must be provided for combustion air per the National Fuel Gas Code. Consult a HVAC specialist if your air infiltration rate is questionable.

Appliances located in confined spaces:

The confined space must be provided with two permanent openings, one commencing within 12 inches of the top and one commencing within 12 inches of the bottom of the enclosure. Each opening must have a minimum free area of one square inch per:

1000 Btu/hr if all air is taken from inside the building.

2000 Btu/hr if all air is taken from the outside by horizontal ducts.

4000 Btu/hr if all air is taken from the outside by direct openings or vertical ducts.

Or the confined space must be provided with one permanent opening or duct that is within 12 inches of the ceiling of the enclosure. This opening must have a minimum free area of one square inch per:

3000 Btu/hr if all air is taken from the outside by a direct opening or vertical duct.

Louvers, grills and screens have a blocking effect. If the effective free area is not known, increase the sizes of your openings by 400% if your louvers are wood and by 135% if your louvers are metal. Refer to the National Fuel Gas Code for complete information. In buildings of tight construction all air should be taken from outside.

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AquaStar GWH 1600 P manual Combustion air requirements, Appliances located in confined spaces
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GWH 1600 P specifications

The AquaStar GWH 1600 P is a state-of-the-art gas water heater designed to efficiently meet the hot water needs of residential users. Renowned for its innovative features and user-friendly technology, the AquaStar GWH 1600 P stands out in the competitive market of heating solutions.

One of the main features of this model is its impressive heating capacity. With a power output of 16 liters per minute, it ensures an abundant supply of hot water for multiple applications simultaneously. This makes it ideal for households with high-demand hot water needs, such as families or homes with multiple bathrooms.

The GWH 1600 P employs advanced combustion technology that optimizes fuel efficiency. It utilizes a microprocessor-controlled system that adjusts the gas flow based on the water demand, ensuring a consistent and efficient heating performance. This not only translates into energy savings but also contributes to reduced carbon emissions, making it an environmentally friendly option.

Another notable characteristic of the AquaStar GWH 1600 P is its safety features. The unit is equipped with a range of safety mechanisms, including an automatic shut-off system that activates in the event of a gas leak or excessive temperatures. This provides peace of mind for users, ensuring that safety is prioritized without compromising performance.

Moreover, the GWH 1600 P is designed for ease of installation and maintenance. It features a compact design, allowing for versatile placement options within a home. The intuitive digital display provides clear information on the operation, enabling users to monitor and adjust settings effortlessly.

The durability of the AquaStar GWH 1600 P is another characteristic worth mentioning. Constructed with high-quality materials, the unit is built to withstand the rigors of daily use, ensuring longevity and reliability.

In conclusion, the AquaStar GWH 1600 P gas water heater combines efficiency, safety, and durability into a single, powerful solution for hot water needs. With its robust performance and advanced technologies, it remains a top choice for homeowners seeking a dependable and economical heating solution for their hot water requirements. Whether for daily use or for special occasions, the AquaStar GWH 1600 P is equipped to deliver unmatched performance and satisfaction.
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