WH-6-RGE

For this application:							Tankless		QTY
	Tankless	Tankless	Tankless	Tankless	Tankless	Tankless	Equipment List		QTY
	Tankless	Tankless	Tankless	Tankless	Tankless	Tankless
Pump should be controlled by	Water	Water	Water	Water	Water	Water	Tankless		6
an Aquastat, Timer or Combina-	Heater	Heater	Heater	Heater	Heater	Heater	Tankless		6
an Aquastat, Timer or Combina-	Primary	Sub 1	Sub 2	Primary	Sub 1	Sub 2	Water Heaters
tion Aquastat and Timer.	Primary	Sub 1	Sub 2	Primary	Sub 1	Sub 2
tion Aquastat and Timer.							Electronic Connection *
Pump to be sized to maintain							Electronic Connection *
Pump to be sized to maintain
circulation loop temperature.							* Refer to Tankless Accessories
The pump should be sized to							and Model Applicability for
The pump should be sized to							electronic connection details.
overcome the pressure loss							electronic connection details.
overcome the pressure loss
through the tank water heater,
and supply and return plumbing
in the circulation loop. Refer-						Gas Supply
ence the section Pump Sizing
for Circulation.
Pump to be of bronze or			Pressure
Pump to be of bronze or			Regulator Set to
stainless construction.			5 PSI Below
			Street Pressure
								Cold Water Supply Line
Hot Water Supply Line
		(Optional) Header Sized One Pipe Size Larger Than Hot
		Water Supply Line - (To eliminate cold water sandwich effect				Gas or Electric		Tank Water Heater sized to
		caused by frequent On/Off operation)				Gas or Electric		Tank Water Heater sized to
						Tank Water		maintain circulation loop
						Heater		temperature
				Aquastat Connection

	Smaller Return Line
	Can Be Used After	Expansion Tank
	The Last Fixture	Expansion Tank
	The Last Fixture
	Building Outlets

Drawing Number:

Drawing Date:

February 27, 2008

Domestic Hot Water - Circulation Systems

6 Tankless Water Heaters with Gas or Electric Tank

Preferred Piping Installation

This is not an engineering drawing; it is intended only as a guide and not as a replacement for professional engineering project drawings. This drawing is not intended to describe a complete system. It is up to the

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contractor or engineer to determine the necessary components and configuration of the particular system to be installed. The drawing does not imply compliance with local building code requirements. It is the responsibility of the engineer or contractor to ensure that the installation is in accordance with all local building codes. Confer with local building officials before installation.

3/4" Ball Valve

3/4" Union

Check Valve

Pressure Relief Valve

Pressure Regulator

Circulating Pump

Boiler Drain Valve

SSolenoid Valve

ATO-705A-P, GT-305-NI, GT-705-NI, ATI-505-N, ATI-705A-N specifications

American Water Heater has long been regarded as a trusted name in the water heating industry, and among its impressive lineup is the ATI-705A-P, GTS-705-PEA, GT-705-PE, GT-305-NE, and GTS-705-NEA models. Each of these units incorporates cutting-edge technologies and design features, ensuring high-performance and energy-efficient water heating solutions for modern households.

Starting with the ATI-705A-P model, it stands out for its high-efficiency water heating capabilities. This unit is equipped with a powerful gas burner that ensures rapid heating. It features an intuitive digital thermostat, which allows users to easily set their desired water temperature, ultimately improving user satisfaction and comfort. The ATI-705A-P also incorporates a durable tank lining that prevents corrosion, extending the lifespan of the product.

Moving on to the GTS-705-PEA and GT-705-PE models, these units are known for their eco-friendly design and energy efficiency. They use advanced insulation technology to minimize heat loss, ensuring that energy is conserved while still delivering hot water on demand. Both models are equipped with high-performance heating elements that provide a quick recovery rate, making them ideal for households with higher hot water needs.

The GT-305-NE model is particularly noteworthy, equipped with a powerful burner that provides consistent hot water supply, making it an excellent choice for larger homes. Its compact design allows for versatile installation options, while still maintaining a large capacity. This model also includes a high-efficiency rating, ensuring energy savings and environmental benefits.

Finally, the GTS-705-NEA offers an innovative approach with its user-friendly features and smart technology integration. It provides Wi-Fi connectivity, allowing users to monitor and control their water heater remotely. This added functionality ensures convenience and efficiency, keeping hot water readily available at all times.

In summary, the American Water Heater ATI-705A-P, GTS-705-PEA, GT-705-PE, GT-305-NE, and GTS-705-NEA models present a range of impressive features and characteristics that cater to diverse household needs. With a strong focus on energy efficiency and advanced technology, these models not only deliver reliable hot water but also contribute positively to the environment, making them wise investments for any home.

For this application:

for Circulation.

stainless construction.

WH-6-RGE

Key

ATO-705A-P, GT-305-NI, GT-705-NI, ATI-505-N, ATI-705A-N specifications