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OVERVIEW - READ ME BEFORE PROCEEDING!

1. The LEGIOMIX valve is factory pre-configured for basic mixed temperature control. All 
thermal disinfection functionality and the SHOCK button are disabled (but can be easily enabled 
in the Menu if needed).

2. Once mounted, wired, and powered up with 

24 volts AC (field-provide a 115/24 VAC 

transformer)

, you will be prompted to set the Date, Time, and Region (USA) in the LCD 

display. The procedure is described below.

3. After setting the Date, Time, and Region, the control will run an “anti-clog” cycle (2 full 
strokes of the valve). This takes a few minutes. It then automatically goes to “Adjustment 
Running” mode for normal operation.

4. In normal operation, the green LCD screen shows Day, Date, mixed temperature “Tm” and 
return temperature “Tr” in degrees °F, and control mode. This display will also show alarms, log 
data, etc. if they occur.

5. The two gray/red LED segments labeled “Mixed °C” and “Return °C” will be off when °F is 
selected. If the temperature units are changed to °C, in the configuration menu, these segments 
will show °C. These LED segments will also indicate a problem with the resistance at the sensor 
terminals, even if the LED displays are off.

6. Relay contact outputs 1, 2 and 4 are for thermal disinfection applications only; ignore if doing 
mixing control. Relay 3 is a general alarm which can be connected, if desired; see manual for 
details.

LEGIOMIX

®

 electronic mixing valve

                             

                                         

6000 series

© Copyright 2019 Caleffi

NA10620.01

www.caleffi.com

1

QUICK START GUIDE

TUESDAY

10/10/2017

T

M

127

O

F T

R

120

O

F

  ADJUSTMENT

     RUNNING

   Mixed 

Outlet (°C)

    Return 

(Recirc) (°C) 

     Time

(24 hr clock)

out of range

 

high

out of range

 l

ow

open

short

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