1 2 3 4 5 6 7 8 9 10 11 12
NC
NO
C
z
W
22
18-INFORMATION MENU
• Puffer thermostat
To activate this option, connect a Normally Open (N.O.) contact thermostat to points 1 and 2 of the back 12-pole terminal board.
Even with this configuration the purpose of the room probe on the stove is only to control the heating system pump controlled by the
potential free contact on terminals 7-8-9, if the system pump is activated in Aux out mode.
POS.1-2 AUX INPUT EXTERNAL THERMOSTAT/THERMOSTAT/
BOILER/PUFFER BOILER PROBE/PUFFER
POS.10 - HEATING
3-WAY VALVE
POS.3-4 ROOM INPUT: ROOM PROBE
POS.11 - COM
POS.5-6 HOME AUTOMATION
POS.12 - DHW
POS.7-8-9 AUX OUTPUT RELAY
To access terminal block “W”, remove the cap as reported in part 1 of the manual (in the paragraph devoted to the removal of the back
panel). Then loosen the two screws “z” and take out terminal block “W”. Perform the necessary connections and place everything back.
Summary of Contents for EGO-STAR Hydromatic 12
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