INSTALLATION & OPERATION INSTRUCTIONS

HYDROMAX

INDIRECT-FIRED WATER HEATERS

1400 Division Road, West Warwick, RI 02893 T: 401.884.6300 F: 401.885.2567 www.amtrol.com

PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY

INSTALLER: LEAVE THIS MANUAL WITH THE OWNER

Models Covered:

HM-41Z & HM-80Z (Mechanical Control)

HM-41L & HM-80L (Ener-G-NET™ Digital Control)

IMPORTANT GENERAL SAFETY INFORMATION - ADDITIONAL SPECIFIC SAFETY ALERTS APPEAR IN THE FOLLOWING INSTRUCTIONS.

DO NOT LIFT OR CARRY WATER HEATER BY THE TOP COVER. WATER HEATER DAMAGE OR PERSONAL INJURY MAY OCCUR IF THE COVER BECOMES DETACHED.

READ CAREFULLY THE PRODUCT INSTALLATION, OPERATING AND MAINTENANCE MANUAL. FAILURE TO FOLLOW THE INSTRUCTIONS AND WARNINGS IN THE MANUAL MAY RESULT IN SERIOUS OR FATAL INJURY AND/OR PROPERTY DAMAGE, AND WILL VOID THE PRODUCT WARRANTY. THIS PRODUCT MUST BE INSTALLED

BY A QUALIFIED PROFESSIONAL. FOLLOW ALL APPLICABLE LOCAL AND STATE CODES AND REGULATIONS. IN THE ABSENCE OF SUCH CODES, FOLLOW THE CURRENT EDITIONS OF THE NATIONAL PLUMBING CODE AND NATIONAL ELECTRIC CODE, AS APPLICABLE.

THIS IS THE SAFETY ALERT SYMBOL. IT IS USED TO ALERT YOU TO POTENTIAL PERSONAL INJURY AND OTHER HAZARDS. OBEY ALL SAFETY MESSAGES THAT FOLLOW THIS SYMBOL TO REDUCE THE RISK OF PERSONAL INJURY AS WELL AS PROPERTY DAMAGE.

The heat transfer medium must be water or other nontoxic fluid having a toxicity rating or class of 1, as listed in Clinical Toxicology of Commercial Products, 5th edition. The pressure of the heat transfer medium must be limited to 30 PSIG by an approved safety or relief valve.

9040-694 (10/11)

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Amtrol HM-80Z, HM-41Z, HM-80L, HM-41L warranty Hydromax

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.