INSTALLATION
DUO PREX N WIRING DIAGRAM
Key
B1
1
st
boiler bi-thermostat
1500 mm (50÷90°C
∆
t
1F/2F
=7°C)
B2
1
st
boiler safety thermostat
2000 mm (100°-6°C)
B3
2
nd
boiler thermostat
1500 mm (50÷90°C
∆
t
1F/2F
=7°C)
B4
2
nd
boiler safety thermostat
2000 mm (100°-6°C)
B5
1
st
boiler lower limit thermostat
2000 mm (50°C)
B6
2
nd
boiler lower limit thermostat
2000 mm (50°C)
K1
1
st
burner auxiliary circuit
K2
2
nd
burner auxiliary circuit
P1
1
st
boiler - Burner hour meter
P2
2
nd
boiler - Burner hour meter
Q1
Main switch
Q2
1
st
burner switch
Q3
2
nd
burner switch
Q4
Plant circulator switch
1F
1
st
Flame
2F
2
nd
Flame
1a
Upper
boiler
2a
Lower
boiler
- 37
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ENGLISH
Содержание DUO PREX N 180
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