Electrical Connection; Power Supply; Bus Connection To The Heat Pump Manager - Dimplex Smart-RTC RT Econ U Instructions D'installation Et D'utilisation

4.4 Electrical connection

ATTENTION!
Work must only be carried out by qualified personnel. Before carrying out
any work, always ensure that there is no voltage present at the terminals.
4.4.1

Power supply

The power supply is connected to terminals L and N (1~ /N,
230 V, 50 Hz) of the device via a 2-core cable (to be provided by
the customer). Cable cross sections of 0.5 mm² and 1.5 mm² are
permissible. (see Fig. 4.7:)
4.4.2

Bus connection to the heat pump manager

A bus connection must be established on site between the heat
pump manager and the Smart-RTC. This requires a shielded 2x
0.25 mm² cable with a maximum length of 50m. The cable
screening is used as the GND connection.
Fig. 4.7:
The following terminals (see Table 4.1:) must be connected:
Smart-RTC
Rx+/Tx+
Rx-/Tx-
GND
Table 4.1:
452114.66.73 · FD 9408
Smart-RTC
Heat pump manager
X5.1
if not present
+ / - / GND
field Card
if not present
+ / - / GND
N1-J26
if not present
+ / - / GND
N1-J23
EN-5