ELECTRICAL CONNECTIONS
15
5.3.
Electrical connections (PLUS VERSION)
Note: Do not use the ecoSTER room panel and room thermostat at the same time!
The regulator is designed to be fed with 230V~, 50Hz voltage. The electrical system should be
three core (with protective wire), and in accordance with applicable regulations. The grounding
cable should be connected to the terminals marked with the symbol
.
The connection wires should not have contact with hot surfaces (with temperature exceeding
the nominal temperature of their operation). Terminals L, N and number 1-8 are intended only
for connecting devices with mains supply 230V~. Terminals 9-20 are intended for cooperation
with low voltage devices (below 12 V).
Tips of the connected wires, especially power leads, must be secured against splitting by means
of insulated clamp sleeves, in accordance with the drawing below:
Legend
T1.
Boiler temperature sensor (type CT4)
T2.
Hot utility water temperature sensors (type CT4)
T3.
Emission temperature sensors (type CT2s)
T.
Room thermostat
DZT-1. Additional thermal safeguard (type DZT-1 85°C or 90°C)
1.
Mains fuse in the regulator
2.
Mains switch in the regulator
3.
Protective terminals PE
4.
Metal enclosure of the regulator
L/N.
Electrical supply
STB.
Safety temperature limiter
