Honeywell SDC Service Manual page 17

SDC / DHC
EN2H-0221GE51 R0812
The mains connection of the heating system (boiler – panel –
control equipment) must be designed as a separate circuit.
Neither fluorescent lamps nor any machines which are potential
sources of interference may be connected/connectable.
a Safety fuse 16 A
b Boiler room emergency switch
c Connect boiler room lighting and electrical outlets to
separate circuits only!
d Wall devices
e Heat generator
Shielded cables must be used for the data bus lines.
For a recommended layout, see 8 Technical data, pg. 252
Safety instructions
17