Electrical Connection; Electrical Installation - Dimplex WI 140TUR+ Montageanweisung

7.5 Electrical connection

7.5.1 General
All electrical connection work must be carried out by a trained
electrician or a specialist for the specified tasks in accordance
with the
 installation and operating instructions,
 country-specific installation regulations (e.g. VDE 0100),
 technical connection conditions of the energy suppliers and
supply grid operators (e.g. TAB) and
 local conditions.
To ensure that the frost protection function of the heat pump
works properly, the heat pump manager must remain connected
to the power supply and the flow must be maintained through the
heat pump at all times.
The switching contacts of the output relay are interference-sup-
pressed. Therefore, depending on the internal resistance of the
measuring instrument, a voltage can also be measured when the
contacts are open. However, this will be much lower than the line
voltage.
Extra-low voltage is connected to controller terminals N1-J1 to
N1-J11; N1-J19; N1-J20; N1-J23 to N1-J26; N17-J1 to N17-J4;
N17-J9; N17-J10 and terminal strip X3 and X5.1. If, due to a wir-
ing error, the line voltage is mistakenly connected to these termi-
nals, the heat pump manager will be destroyed

7.5.2 Electrical installation

1) The supply cable (with up to 5 cores) for the power element
of the heat pump or the primary pump is routed from the heat
pump's electricity meter to the heat pump.
The cable for the heat pump is routed via the utility contactor
(if required). Connection of the mains cable is at the control
panel of the heat pump via the terminals: X1: L1/L2/L3/N/PE
or X1: L11/L21/L31/PE.
If no utility contactor is used, the electrical loads are supplied
via a shared feed cable (bridge feeds using bridges sup-
plied). The power supplies are fitted with an all-phase dis-
connection with at least 3 mm contact opening distance
(e.g. utility protection contactor, power contactor), as well
as an all-phase cutout switch, with shared activation of all
external conductors (release currents and characteristics
in accordance with device information; see circuit diagram
for further details).
ATTENTION!
Ensure the rotary field is clockwise when connecting the mains cables (if
the rotary field is not clockwise, the heat pump will not work properly, is
very loud and may cause damage to the compressor).
2) The three-core electric supply cable for the heat pump man-
ager (heating controller N1) is fed into the heat pump .
Connection of the control line to the control panel of the heat
pump via terminal X2: L/N/PE.
Details on the power consumption of the heat pump are
listed on both the product information sheet and the type
plate.
The (L/N/PE~230 V, 50 Hz) supply cable for the heat pump
manager must have a constant voltage. For this reason, it
should be tapped upstream from the utility blocking contac-
tor or be connected to the household current, as important
protection functions could otherwise be lost during a utility
block.
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3) The utility blocking contactor(K22) with 3 main contacts (1/3/
5 // 2/4/6) and an auxiliary contact (NO contact 13/14)
should be dimensioned according to the heat pump output
and must be supplied by the customer.
The NO contact of the utility blocking contactor (13/14) is
looped from terminal strip X3/G to connector terminal X3/A1.
CAUTION! Extra-low voltage!
4) The contactor (K20) for the immersion heater (E10) of mono
energy systems (HG2) should be dimensioned according to
the radiator output and must be supplied by the customer. It
is controlled (230 V AC) by the heat pump manager via ter-
minals X2/N and X2/K20.
5) The contactor (K21) for the flange heater (E9) in the hot
water cylinder should be dimensioned according to the radi-
ator output and must be supplied by the customer. It is con-
trolled (230 V AC) by the heat pump manager via terminals
X2/N and X2/K21.
6) The contactors mentioned above in points 3, 4 and 5 are in-
stalled in the electrical distribution system. Mains cables for
the installed heaters must be laid and secured in accord-
ance with the valid standards and regulations.
7) All installed electric cables must have permanent wiring.
8) The heat circulating pump (M13) is activated via the contact
N1-J13/NO5. The connection points for the pump are
X2/M13 and X2/N. When using pumps where the switching
capacity exceeds the output, a coupling relay must be inter-
posed.
9) The auxiliary circulating pump (M16) is activated via the con-
tact N1-J16/NO9. The connection points for the pump are
X2/M16 and X2/N. When using pumps where the switching
capacity exceeds the output, a coupling relay must be inter-
posed.
10) The domestic hot water circulating pump (M18) is activated
via the contact N1-J13/NO6. The connection points for the
pump are X2/M13 and X2/N. When using pumps where the
switching capacity exceeds the output, a coupling relay must
be interposed.
11) The brine or well pump (M11) is activated via the contact N1-
J12/NO3. The connection point for the pump is on contactor
K5:2/4/6. A coupling relay is already integrated in this out-
put.. If an additional well pump is used, the protective motor
switch at the site must be checked and replaced if neces-
sary.
Connection of the well pump mains cable on the heat
pump's control panel via terminal X1: L11/L21/L31/PE.
Ensure that the supply voltage for these terminals cannot be
switched off by the tariff contactor when connecting the
mains cable for the well pump, in order to safeguard the
switch-off delay of the well pump.
12) The return flow sensor is integrated into the heat pumps.
The return flow sensor must be installed in the immersion
sleeve in the manifold only when a dual differential pres-
sureless manifold is used. The single-core wires are then
connected to terminals X3/GND and X3/ R2.1. Bridge A-R2
(situated between X3/U2 and X3/1 when delivered) must
then be moved to terminals X3/1 and X3/2.
13) The external sensor (R1) is connected to terminals X3/GND
and X3/R1.
14) The domestic hot water sensor (R3) is included with the do-
mestic hot water cylinder and is connected to terminals X3/
GND and X3/R3.
452234.66.40 · FD 9506
WI 140TUR+
EN-9