Riello 20115221, Installation, Technical And Maintenance Manual

Page: 33 / 84

33
INSTALLATION
Electrical wiring referred to layout 2 at page "20".
MO1
BUS 2 BUS 1 PWM SE SB SS Modbus 0-10V TA
3 4 9 10 11 12 13 14 15 16 17 5 6 7 8
TA SB PB
MO2
PI PB
L N L L N
101 102 103 104 105 106
TA Room/heat demand thermostat
SB Connect to the storage cylinder probe (Mod. San. 1) or
to the storage cylinder thermostat (Mod. San. 2)
PB Connect to the deviating valve (13). Contacts 101-102
control the deviation on heating, contacts 102-103
control the deviation on domestic hot water
NOTE The room thermostat connection must be dry (no
voltage).
Electrical wiring referred to layout 3 at page "21".
TB1
BUS 2 BUS 1 PWM SE SB SS Modbus 0-10V RT
3 4 9 10 11 12 13 14 15 16 17 5 6 7 8
RT CHP
TB2
CHP TMP SCP
L N L
L L N
L N
101 102 103 104 105 106 107 108 109
TA Room/heat demand thermostat
PI Connect to the high temperature system pump
NOTE The room thermostat connection must be dry (no
voltage).
Electrical wiring referred to layout 4 at page "21".
MO1
BUS 2 BUS 1 PWM SE SB SS Modbus 0-10V TA
3 4 9 10 11 12 13 14 15 16 17 5 6 7 8
TA SB PB PI
MO2
PI (ACS) PB
L N
L L N
L
101 102 103 104 105 106
TA Room/heat demand thermostat
SB Connect to the storage cylinder probe (Mod. San. 1) or
to the storage cylinder thermostat (Mod. San. 2)
PB Connect to the water pump
PI Connect to the high temperature system pump
NOTE The room thermostat connection must be dry (no
voltage).
Electrical wiring referred to layout 5 at page "22".
MO1
BUS 2 BUS 1 PWM SE SB SS Modbus 0-10V TA
3 4 9 10 11 12 13 14 15 16 17 5 6 7 8
TA SB PB PI
MO2
PI (ACS) PB
L N L L N L
101 102 103 104 105 106
TA Room/heat demand thermostat
SB Connect to the storage cylinder probe (Mod. San. 1) or
to the storage cylinder thermostat (Mod. San. 2)
PB Connect to the deviating valve (13). Contacts 101-102
control the deviation on heating, contacts 102-103
control the deviation on domestic hot water
PI Connect to the high temperature system pump
NOTE The room thermostat connection must be dry (no
voltage).
9
Some electric connections of the power jig have a double
function. With special reference to the principle schemes 2
and 5 where no tank pump is foreseen, the two-way valve
of each module must be connected to the abovementioned
connections 101-102-103.