Blog

How should the LEGIOMIX® body and actuator be installed?

January 10, 2020

It's important to install the LEGIOMIX valve body with the actuator on the top or side of the piping, never on the bottom. Follow the diagrams...

Mixing Valves, Electronic

How does the actuator wire into the controller?

December 27, 2019

After you select a mounting location for your controller and install the actuator onto the body of the mixing valve, you will route the wire from the actuator back into the control module. You will find a black, brown, green, red and white wire for your actuator. Inside the control you will find a number of wring terminals and they are all...

Mixing Valves, Electronic

Can I add a zone to an existing ZSR or ZVR relay board?

December 10, 2019

The ZVR or ZSR Series relay boards are available for 3, 4 or 6 zone options. If your system has more...

Zone Relay Controls

How do I install an electronic mixing valve?

November 19, 2019

Every 6000 Series LEGIOMIX® Electronic Mixing Valve includes an Installation and Commissioning Manual as well...

Mixing Valves, Electronic

What is the battery used for in the electronic mixing valve control?

November 12, 2019

When installing the 6000 Series LEGIOMIX® Electronic Mixing Valve, remember to turn the battery switch to the ON position in the control. This will activate charging the small 3.6V, 3-Cell...

Mixing Valves, Electronic

Adjustable Thermal Hot Water Balancing

September 09, 2019

by Woody Dickinson, Marketing Technical Manager of Caleffi North America, Inc. as featured in PHCP PROS Magazine June 2019 Within a multi-circuit...

Balancing Valves Domestic Hot Water Systems

Temperature creep in hot water recirculation

December 14, 2018

We get a lot of tech support calls asking about proper piping of a point-of-distribution master mixing valve when a domestic hot water system has a recirculation pump. Unfortunately, there are a LOT of incorrectly piped systems out there, resulting in either temperature creep or temperature droop in the recirculation piping...

Mixing Valves, Thermostatic

How Water Behaves in Hydronic Systems (Part II)

September 11, 2017

by Mark Olson, CEO of Caleffi North America, Inc. as featured in HPAC Magazine August 2017 Two common problems resulting from poor water quality are excessive corrosion and limescale accumulation. In Part I (...

Water Quality

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