HAMWORTHY HEATING LTD
85
Merley Boiler Sequence Controller
500001210/D
7.1.1 Basic diagram RVS63.243
Standard diagram
-
cascade pump
Combined DHW + heating with pump & valve
-
cascade pump
B9 T
T
T
T
BX1
Q25
Q3
Boiler
1
Boiler
2
Boiler
3
Lo
w
lo
ss
h
ea
de
r
Q2
Rg1
B3
B9 T
T
T
T
T
BX1
Q25
Q3
Boiler
1
Boiler
2
Boiler
3
Lo
w
lo
ss
h
ea
de
r
Y1/Y2
Q2
B1
Rg1
B3