Domestic Water Piping Boiler Piping | Amtrol WH-7 Classic Series

4.WH-7 & 9 CLASSIC SERIES PIPING INSTALLATION

DOMESTIC WATER PIPING

BOILER PIPING

RTR, Top Down, WH-7 Classic Series, WH-9 Classic Series specifications

4.WH-7 & 9 CLASSIC SERIES PIPING INSTALLATION

COLD WATER.

1.Thread the included 3/4” brass tee onto the pipe marked

2.Screw the 3/4” drain valve into the opposite end of the brass tee.

3.Connect the cold water supply to the remaining port on the brass tee.

4.Temporarily attach the top tee fitting (with o-ring face seal) to the union nut on top of the tank. Test fit the piping near the tee before soldering. Remove the tee before soldering connections to avoid damage to the top o-ring seal or plastic liner.

Note: Do not solder piping within 24 inches of the top tee fitting while attached to the tank.

5.Make an 8-inch “heat trap” as shown in the diagram. This will reduce standby losses from heat migrating up the piping. Continue this line to the domestic hot water system.

6.Install the included T&P relief valve on the top port of the top tee connection. Plumb a blowdown tube to within 6 inches of a floor drain or as directed by plumbing code.

7.When all domestic water piping is complete, open the cold water supply and allow some water to enter the tank. Look and listen for signs of leaks and repair as necessary before continuing.

Note: If installing on a city supply, ensure a dedicated Thermal Expansion tank (Therm-X-Trol®or equivalent) is used.

1.Plumb the circulator or zone valve on the BOILER SUPPLY line. If using a separate circulator, the pump flange can be mounted directly to the threaded pipe marked BOILER SUPPLY. Alternately, the circulator can be placed anywhere on the boiler supply line.

2.Pipe the BOILER RETURN connection to the boiler return line.

Be sure the return line is NOT plumbed to the suction side of any heating circulators. This may require moving the heating circulator off the boiler tapping on packaged boilers. Failure to do so will result in overheating and tank damage when the heating system is in operation.

3.Install a weighted flow check on the boiler return line. This is not necessary on systems utilizing a zone valve to control the BoilerMate® temperature.

4.After completing the boiler piping, slowly open the boiler fill valve and pressurize the BoilerMate® loop. Check for leaks and repair as necessary. Proceed to the appropriate wiring section in this manual.

If installing on city water supply a properly sized THERM-X-TROL®is required with the BoilerMate® and should be installed as set forth in the THERM-X-TROL®product installation manual.

Clearance From Combustible Surfaces
LEFT SIDE . . . . . . 1”	REAR . . . .	. . . . 1”
RIGHT SIDE . . . . . . 1”	FLOOR . . . .	. . . . 0”
TOP . . . . . . . . . 9”	FRONT . . . .	. . . . 1”


Recommended Clearance For Servicing
LEFT . . . . . . . . 12”	HEAD ROOM .	. . . . 9”
RIGHT . . . . . . . . 12”	REAR . . . .	. . . . 1”
FRONT . . . . . . . . 30”

BOILER RETURN (Top Left)

BOILER SUPPLY (Top Right)

COLD WATER INLET

(Bottom Center)

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Amtrol is a well-respected name in the water heater industry, and its Classic Series models, such as the WH-9 and WH-7, are recognized for their quality and performance. These water heaters are designed to meet the hot water needs of residential and commercial applications, offering efficient solutions for those who require a reliable supply of hot water.

The WH-9 Classic Series is a standout model, boasting a 9-gallon capacity, making it ideal for smaller households or specific applications that require a compact solution. This model is designed with a unique top-down heating system, which ensures that water is heated efficiently from the top down, minimizing energy waste. The tank is insulated with high-density foam, reducing standby heat loss and enhancing energy efficiency. This model features a glass-lined steel tank that is resistant to corrosion, coupled with a magnesium anode rod that further extends the tank’s lifespan.

On the other hand, the WH-7 Classic Series offers a slightly smaller 7-gallon capacity, making it a perfect choice for tight spaces or systems where only a limited quantity of hot water is needed. Similar to the WH-9, the WH-7 also utilizes advanced insulation technology to maintain water temperature and reduce energy consumption. The compact design of both models allows for easy installation in various locations within a home or business.

Both the WH-9 and WH-7 feature a user-friendly thermostat for precise temperature control. This allows users to adjust the water temperature to their specific needs, ensuring optimal comfort and safety. The Classic Series is built with high-quality components, including durable heating elements that provide quick recovery times, delivering a steady flow of hot water when needed.

Another notable characteristic of the Amtrol Classic Series is its commitment to sustainability. The company integrates eco-friendly technologies into their products to reduce energy consumption, which is beneficial for both the environment and the consumer’s utility bills.

In conclusion, Amtrol’s WH-9 and WH-7 Classic Series water heaters offer efficient, reliable hot water solutions for varying residential and commercial needs. With their innovative heating technologies, durable construction, and user-friendly features, these models stand out in the competitive water heater market, making them a preferred choice for many homeowners and businesses alike. Whether you opt for the 9-gallon or the 7-gallon capacity, you can be confident in receiving consistent and efficient hot water when you need it most.

HOT WATER OUTLET

T&P RELIEF VALVE

T&P RELIEF VALVE