30
WIRING DIAGRAM OF A PANEL BOARD WITH OUTER COMPENSATOR
In case of three phase burner and/or pump, convenient relays have to be foreseen.
fig. 34
SENSOR CONNECTION ONTO THE OUTER COMPENSATOR TERMINAL STRIP
fig. 33
Ph Phase (230V ~ 50Hz)
N Neutral
F1 General fuse (max 4A)
b1 Burner switch 1
st
boiler
Ib2 Burner switch 2
nd
boiler
IG Illuminated main switch
Ipb D.H.W. tank pump switch
Ipr Recirculating pump switch
Pb D.H.W. tank loading pump
Pr Shunt pump
P1 C.H. pump for direct zone
P2 C.H. pump for mixed zone
Te1 Working thermostat 1
st
boiler (30°C÷90°C)
Te2 Working thermostat 2
nd
boiler (30°C÷90°C)
Tm1 Minimum thermostat 1
st
boiler (30°C)
Tm2 Minimum thermostat 2
nd
boiler (30°C)
Ts1 High limit thermostat 1
st
boiler (100°C)
Ts2 High limit thermostat 2
nd
boiler (100°C)
Vm2 Mixing valve for 2
nd
zone
A1/A2 Additional repetition of lockout for
burners 1 & 2
B1/B2 Additional repetition of working hour
meter for boiler 1 & 2