4. HYDROMAX™ Plumbing

DOMESTIC WATER PIPING

1.Connect the cold water supply to the pipe labeled

COLD WATER.

2.Connect the HOT WATER piping to the domestic hot water system.

3.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, a properly sized thermal expansion tank is required and should be installed in accordance with the product installation manual.

Note: If a water heater is installed in a closed water supply system, such as one having a back-flow preventer in the cold water supply, means shall be provided to control thermal expansion. Contact the water supplier or local plumbing inspector on how to control this situation.

Note: If an external electrical source is utilized, the appliance, when installed,must be electrically grounded in accordance with local codes or, in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70.

Note: The thermostat is adjusted to 120° F, when shipped from the factory.

4.Install the blowdown tube on the T&P relief valve outlet. Plumb to within 6 inches above a floor drain or as directed by plumbing code.

Clearance From

Combustible Surfaces

 

LEFT SIDE . .

. . .

1"

REAR

1"

RIGHT SIDE . .

. .

. 1"

FLOOR

. 0"

TOP

. . .

9"

FRONT

. 1"

 

 

 

 

 

Do not drill, puncture or otherwise penetrate the steel outer tank shell. Do not screw pipe hangers or other hardware into the exterior of the tank.

BOILER PIPING

1.Plumb the circulator or zone valve 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 water heater temperature.

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

EXPLOSION HAZARD. Do not install to a high pressure steam boiler (greater

than 15 psig). An explosion could occur.

Recommended Clearance for Servicing

 

 

LEFT

12"

HEAD ROOM .

.

. 36"

RIGHT

. 12"

REAR . . . .

.

. . 1"

FRONT

30"

 

 

 

 

 

 

 

 

BLOWDOWN

WIRING AND AQUASTAT

TUBE

ON FRONT CAP HALF

 

BOILER SUPPLY

TEMPERATURE

 

 

 

SENSOR WELL

 

COLD WATER

HOT WATER

 

 

SUPPLY

OUTLET

 

 

BOILER RETURN

 

TOP VIEW

FROM FRONT

PIPING USING ZONE VALVE

DRAIN

REAR VIEW

(FOR CLARITY)

-4-

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Amtrol HM-41Z, HM-80Z, HM-80L, HM-41L warranty Hydromax Plumbing, Domestic Water Piping
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HM-41Z, HM-80L, HM-80Z, HM-41L specifications

Amtrol is a well-regarded name in the world of water heating and thermal expansion tanks. Among its offerings, the HM-41L, HM-80Z, HM-80L, and HM-41Z models stand out for their exceptional design and innovative technologies. These tanks are engineered to ensure optimal performance and reliability in both residential and commercial applications.

The HM-41L is particularly notable for its compact design, making it ideal for installations in areas with limited space. Its reinforced steel construction ensures durability while the advanced coatings provide superior corrosion resistance. This model features Amtrol's unique expansion technology, which allows for efficient management of thermal expansion in water heating systems, preventing damage to plumbing and fixtures.

On the other hand, the HM-80Z and HM-80L models cater to higher capacity requirements. Both units are designed with a high-efficiency insulation system that minimizes heat loss, thereby improving energy efficiency and reducing operating costs. The HM-80Z variant is equipped with a zinc-coated exterior for added durability against environmental factors, making it suitable for outdoor installations. The HM-80L, meanwhile, retains the traditional finish but also boasts improved thermal performance.

The HM-41Z model combines compactness with versatility. It is engineered to handle a diverse range of hot water applications, from standard residential setups to commercial uses. Like its counterparts, it incorporates Amtrol's advanced expansion technology, ensuring safety and efficiency. Its robust design and materials guarantee a long lifespan, making it a worthy investment for any property.

A key feature across all these models is Amtrol's commitment to quality and safety. Each tank undergoes rigorous testing to meet industry standards, ensuring reliability in performance. Additionally, the user-friendly installation process and compatibility with various heating systems make these tanks an excellent choice for both new constructions and retrofits.

Overall, the Amtrol HM series—HM-41L, HM-80Z, HM-80L, and HM-41Z—brings together cutting-edge technology, durability, and energy efficiency. Their versatile applications and robust designs make them standout options in thermal expansion tank solutions. These models not only protect plumbing systems but also enhance the overall efficiency of hot water systems, offering peace of mind to homeowners and professionals alike.
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