7
PL-015B/f.
7
PL-015B/f.
N
L
N
L
4
Fig.4
Connection to the electric mains
Instruction for the installer
5a
5b
Fig.5a Connection of the EKCO.M1z to the three phase
system
PNL - points of neutral and protective conductor con-
nection
PF - points of phase conductors connection
[6] - temperature limiter
Fig.5b
Connection of the EKCO.M1z to the single phase system (for
boilers of 4kW,6kW and 8kW)
PNL - connection points of neutral, protective and
phase conductor
[6] - temperature limiter
[15] - wire set
External appliances
A number of other appliances or necessary sensors (fig. 6) can be connected to the boiler according to the in-
dividual requirements. The temperature sensors should be connected using a LIYY 2x0,14 or similar type of wire.
Pay special attention to the sensors ending, incorrect wiring may result in short circuit. The connecting wire lengths
must be limited. A long wire may cause interference and faulty sensor operation. The wires must not be run in the
same conduit with (or too close to) electrical wiring, and must not be wrapped around any other wires or cables.
The sensor location is essential for its proper functioning.
Outdoor temperature sensor should be installed in the coolest place in the building (north building side), rela-
tively far away from the heat source (e.g.windows that can be opened, ventilation ducts, chimneys and other heated
surfaces). Do not install the outdoor sensor in the place exposed to direct sunshine
Indoor temperature sensor must be located inside the building, in the most commonly used room, relatively far away
from windows, radiators, doors and other places that may have affect on correct temperature measuring. The indoor
temperature sensor is optional accessory. For more information about sensor see page 19 -
„
Room temperature sensor
”
.
Electric installation should be equipped with residual
current protective devices and other solutions which
will ensure disconnecting the unit from the source of
power (intervals between all their poles should not be
less than 3 mm).
Note: 4, 6 and 8kW boilers are factory pre-set to work as single phase boilers [figure 5b]. If you
intend to connect the boiler to a three-phase system, take off the [15] wire set.
