Specifications

3
General safety instructions
All electrical connections and safety
measures have to be carried out by a
specialist in due consideration of valid
standards as well as the local regulations.
The electrical connection has to be done
according to the specications of the
respective boiler manufacturer.
Safety measures for electrical-
compliant installation
1. Cables with 120 V voltage must be
generally routed separately from
sensor lines and data bus cables.
A minimum distance of 0.8 in (2 cm) between
the lines is mandatory. Crossing of lines is
permitted.
2. When installing the room control unit a
minimum distance of 15.75 in (40 cm)
must be maintained to other electrical
utilities with electromagnetic emissions,
such as power contactors, motors,
transformers, dimmer switches,
microwave ovens and televisions,
loudspeakers, computers, mobile
phones etc.
3.
15.75 in
40 cm
Fig. 2: Minimum distance to other electric
instruments
Only connect heating
room lighting and
sockets on separate
power circuit!
Room control
unit
Control unit 16 A
Heating room emergency
switch
Boiler
Fig. 3: Electric routing in heating room
Fig. 1: Minimum distances for electrical connection
5.9 in
15 cm
Mains 120 V~
Data bus line 12 V~
0.8 in
2 cm
WARNING
Indicates an imminently
hazardous situation
which, if not avoided,
could result in death or
serious injury.
WARNING
Disconnect power before opening. Making
connections under voltage may damage the
control or cause dangerous electrical shocks.
120 volts is supplied to the control.
The main connection for the heating
system (i.e. boiler - control unit) must be
designed as an independent electrical
circuit. Do not connect uorescent lamps
or other electrically powered devices which
could be a source of electrical interference.
Even the possibility of such
connections/interference should be ruled
out.