Amtrol HM-41Z, HM-80Z, HM-80L, HM-41L warranty Mechanical Aquastat Wiring Diagrams, Boiler Controls

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7. Mechanical Aquastat Wiring Diagrams

Common wiring diagrams are shown below. Select the appropriate diagram for the application. Diagrams are popular examples only. If your application is not shown, contact Amtrol Technical Support at 401.535.1216.

Boiler Controls

Typical Oil Burner (Non-Priority)

Typical Gas Valves (Non-Priority)

24V Thermostat Input (Priority)

L1

AQUASTAT

HONEYWELL

R4222D 1013

OR EQUIVALENT

DPDT RELAY

1

 

3

ZR

 

 

 

 

2

 

 

4

 

6

 

 

5

 

HYDROMAX™

 

 

 

 

COIL

 

CIRCULATOR

 

 

 

 

 

 

L1

W

Z

AQUASTAT

L1

HONEYWELL

R4222D 1013

OR EQUIVALENT B DPDT RELAY

1

 

3

 

2

 

4

 

6

 

5

HYDROMAX™

 

 

 

COIL

CIRCULATOR

 

 

 

 

L2

 

HONEYWELL

 

 

R4222D 1013

 

T

OR EQUIVALENT

T

DPDT RELAY

AQUASTAT

 

1

 

3

 

 

 

2

 

 

C1

4

 

6

 

 

 

 

 

 

 

5

HYDROMAX™

 

 

 

 

 

 

 

COIL

CIRCULATOR

L1

 

 

 

 

 

 

 

WHEN NO “ZR” TERMINAL IS AVAILABLE

GO TO THE SUPPLY SIDE OF THE HI LIMIT

L2

Zone Valves

3-Wire

4-Wire

AQUASTAT

AQUASTAT

 

 

 

 

 

24VAC

 

24VAC

 

 

 

 

END

 

 

 

 

 

SWITCH

 

 

 

 

MOTOR

 

 

 

TRANSFORMER

ZONE VALVE

ZONE VALVE

TRANSFORMER

L2

L1

END

 

 

 

 

 

L2

L1

 

 

SWITCH

 

 

 

 

Other Applications

Universal Sensor Kit

Installing Universal 10K Ohm Sensor Kit HYDROMAX models with a mechanical aquastat include a universal temperature sensor kit allowing HYDROMAX to be used with any boiler control featuring a standard “10K” DHW thermisor input (10,000 Ohms at 77° F). When installed, domestic water temperature is regulated by the boiler and the HYDROMAX aquastat is not used.

1.Unscrew and remove copper sensor bulb from sensor well.

2.Insert Universal Sensor to bottom of sensor well.

3.Plug Universal Sensor into Extension cable.

4.Connect wire leads to DHW input terminals on boiler control.

AQUASTAT

SENSOR BULB

(REMOVE)

Multi-Zone Control

AQUASTAT

Boiler Control Input

AQUASTAT

EXTENSION

L2 L1

DHW ZONE

DHW ZONE

CABLE

DHW

BOILER CONTROL

PLUG

XX TO BOILER

HYDROMAX™

CIRCULATOR

OR ZONE VALVE

HYDROMAX™ CIRCULATOR OR ZONE VALVE

UNIVERSAL SENSOR

IN SENSOR WELL

BOILER

HYDROMAX

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Contents Hydromax Table Of Contents Pre-Installation ChecklistRequired Components And Accessories Checklist Circulator Shutoff ThermalHydromax Plumbing Domestic Water PipingEner-G-NETWiring Oil Burner Controls Ener-G-NETControl Setup & Adjustment OverheatingMechanical Aquastat Wiring Diagrams Boiler ControlsStartup Procedure TroubleshootingGeneral Safety Information Replacement Parts 9040-694 10/11

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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