Smeg CW400RSD - Manual (Page 7)

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ZERO CROSSING : The relay which powers the Tank’s electrical resistance is equipped with the “ zero crossing “
function which synchronizes the switching of this relay, both in closing and in opening, with the voltage supply’s
passing to zero both for 50 Hz and 60 Hz frequencies. In this manner the relay’s contacts usage is significantly
reduced.
CONNECTION SCHEME
Clamp Connection for model. CWC500R Connection for models CW400RSD – CW400R
1 – 2 CONTROL UNIT POWER SUPPLY, 230 VAC CONTROL UNIT POWER SUPPLY, 230 VAC
3 – 4 BOILER TEMPERATURE SENSOR BOILER TEMPERATURE SENSOR
5 – 6 TANK TEMPERATURE SENSOR TANK TEMPERATURE SENSOR
10 BREAK-TANK PRESSOSTAT BREAK-TANK PRESSOSTAT
11 Reserve input SALT CONTAINER SENSOR
12 MICRO HOOD MICRO DOOR
13 TANK PRESSOSTAT, closed over level TANK PRESSOSTAT, closed over level
14 COMMON INPUTS COMMON INPUTS
15 BOILER RESISTANCE REMOTE CONTROL SWITCH COIL BOILER RESISTANCE REMOTE CONTROL SWITCH COIL
16 TANK RESISTANCE, max. 10 Amp. TANK RESISTANCE, max. 10 Amp.
17 - REGENERATION ELECTROVALVE
18 - COLD RINSE ELECTROVALVE
18 B.TANK RINSE PUMP (MACHINE TYPE 4) RINSE PUMP (MACHINE TYPE 4)
19 WASH PUMP ( max. 1 HP ) WASH PUMP ( max. 1 HP )
20 RINSE ELECTROVALVE + PRESSURE INCREASE PUMP RINSE ELECTROVALVE + PRESSURE INCREASE PUMP
21 DRAIN PUMP ( max. 0.75 HP ) Optional DRAIN PUMP ( max. 0.75 HP ) Optional
22 OUTPUT POWER SUPPLIES, 230 VAC phase OUTPUT POWER SUPPLIES, 230 VAC phase