Ener-G-NETWiring | Amtrol HM-80Z, HM-41Z, HM-80L, HM-41L manual

5. Ener-G-NET™Wiring

Ener-G-NET incorporates all of the temperature sensing and control necessary for HYDROMAX™ operation. Built-in switching relays may be wired to operate the boiler control and circulator pump or zone valve. The diagram below illustrates these internal switching functions.

Examples of common wiring scenarios are provided on the following page.

Front Panel

Control

Screws (4)

Wiring Cover

Conduit Holes (3)

Ground Screw

Normally Open	{
Close on call for hot water
Post-Purge function
Normally Open		{
Normally Open		{
Close on call for hot water
Normally Closed			{
Open on call for hot water
Priority function

Constant 24VAC or 120VAC{

ORANGE

BLUE

VIOLET

WHITE

Power In

BLACK

After wiring is complete, insert the white temperature sensor (thermistor) plug into the receptacle at the base of the digital control. Select the plug marked CIRCULATOR or ZONE VALVE based on the application. Zone valves can be slow actuating. Therefore, the zone valve sensor contains a built-in temperature offset to account for the time it takes the zone valve to fully close. This results in potable water temperature that is representative of the digital control temperature set point. This is why it is important to install the correct sensor into the digital control. See Page 2 for information regarding the selection of a circulator or zone valve.

Temperature	Water	Water
Sensor Plug	Sensor Plug	Sensor

NOTE: This sensor should not be the primary means of water detection. US PATENT NO: 7,671,754 and other patents pending.

NOTE: Line-voltage and safety-circuit wiring which is external to the water heater jacket when all panels are in place, and which is part of the appliance, shall be protected by metal conduit, metal-clad cable or raceways. “Power Limited Circuit Cable” needed not be provided with the protection specified above if it is securely fastened to the appliance jacket and follows the contour of the appliance jacket. Thermoelectric wiring shall be exempt from this provision.

NOTE: Strain relief shall be provided for all conductors leaving an enclosure. For low-voltage wiring, strain relief at the point of exit from an enclosure is not necessary if, by wire location or support, protection is provided against accidental strain.

NOTE: For models equipped with a water sensor, the water sensor should be placed flat on the floor in a low-traffic area. On a regular basis, verify that the water sensor is functioning properly by placing the orange puck in a water puddle or insert a coin between the two electrodes and listen for audible alarm.

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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.