5 - ELECTRICAL CONNECTIONS
5.6 Connection with room thermostat mounted on- board
BOILER Heating go-ahead output (boiler-caldaia)
free contact max 1A
CHILLER Cooling go-ahead output (chiller)
free contact max 1A
SW2 Remote ON / OFF
H2 Water temperature probe (4T → heating)
2T → cooling / heating
H4 Water temperature probe (4T → cooling)
S1 Grill safety micro-switch
Y1 Water solenoid valve (4T → heating)
(2T → heating / cooling)
Y2 Water solenoid valve (4T → cooling)
4 tube : Y1 + Y2
2 tube : Y1
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